WO2022028256A1 - Communication method, apparatus, and system - Google Patents

Communication method, apparatus, and system Download PDF

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Publication number
WO2022028256A1
WO2022028256A1 PCT/CN2021/108007 CN2021108007W WO2022028256A1 WO 2022028256 A1 WO2022028256 A1 WO 2022028256A1 CN 2021108007 W CN2021108007 W CN 2021108007W WO 2022028256 A1 WO2022028256 A1 WO 2022028256A1
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WIPO (PCT)
Prior art keywords
network element
authorization
mbs service
terminal device
control plane
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PCT/CN2021/108007
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French (fr)
Chinese (zh)
Inventor
邓娟
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华为技术有限公司
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Publication of WO2022028256A1 publication Critical patent/WO2022028256A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method, device, and system.
  • a multicast-broadcast service (MBS) service is a service that sends data from one data source to multiple recipients.
  • the MBS service includes MBS multicast service and MBS broadcast service.
  • MBS multicast service refers to sending data from a data source to a group of users.
  • the MBS broadcast service refers to sending data from a data source to all users in the service domain of the MBS broadcast service.
  • the 3rd generation partnership project (3GPP) standard defines the third generation (3rd-generation, 3G)/fourth-generation (4G) multimedia multicast broadcast service (multimedia broadcast/multicast) service, MBMS) architecture, and the process based on the 3G/4G MBMS architecture, which defines: when the terminal device wants to use an MBS service, the network side performs the MBS service authorization process for the terminal device through the user.
  • 3GPP 3rd generation partnership project
  • the fifth-generation (5G) MBS architecture is proposed in the 3GPP research project.
  • the 5G MBS architecture introduces new network elements and new MBS service establishment procedures.
  • the mechanism of MBS service authorization for terminal devices under the 3G/4G MBS architecture cannot be migrated to the 5G MBS architecture. Therefore, under the 5G MBS architecture, how to realize the MBS service authorization of terminal equipment is an urgent problem to be solved at present.
  • Embodiments of the present application provide a communication method, apparatus, and system for implementing MBS service authorization of terminal equipment under the 5G MBS architecture.
  • a first aspect provides a communication method, characterized in that the method includes: a first control plane network element receiving a first message from a second control plane network element, where the first message includes a first multicast broadcast service MBS
  • the identifier of the service and the identifier of the first terminal device are used to request authorization for the first terminal device to use the first MBS service;
  • the first control plane network element determines the first terminal device according to the identifier of the first MBS service and the identifier of the first terminal device.
  • the terminal device uses the authorization result of the first MBS service, where the authorization result includes authorization success or authorization failure;
  • the first control plane network element sends the identification of the first MBS service and the authorization result to the second control plane network element.
  • the authorization result obtained by the first terminal device using the first MBS service is that the authorization is successful; the communication method provided in this embodiment of the present application further includes: the first control plane network element sends the second control plane network element to the second control plane network element.
  • the validity period of the authorization for the first terminal device to use the first MBS service is expired after the validity period of the authorization for the first terminal device to use the first MBS service expires, the second control plane network element can release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first terminal device.
  • the context of the PDU session related to the first MBS service can avoid the problem that the first MBS service is always used by the first terminal device.
  • the first control plane network element determines the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, including: the first control plane network element sends the third control plane network element to the third control plane network element. the second message, where the second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; the first control plane network element receives information from the third control plane network element The identification and authorization result of the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may obtain the authorization result of the first terminal device using the first MBS service from other control plane network elements.
  • the authorization result is authorization success;
  • the communication method provided by the embodiment of the present application further includes:
  • the first control plane network element receives, from the third control plane network element, the authorization validity period for the first terminal device to use the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may obtain the authorization validity period for the first terminal device to use the first MBS service from other control plane network elements.
  • the communication method provided by the embodiment of the present application further includes: the first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service; the first control plane network element reports to the session management network The element sends a third message, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • a communication method includes: a first control plane network element determines to revoke authorization of a first terminal device to use a first MBS service; the first control plane network element sends a first control plane network element to a session management network element.
  • the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device, or to delete (or deactivate) the first terminal device of the first terminal device.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element determining the first The validity period of the authorization for the terminal device to use the first MBS service ends. That is, in this embodiment of the present application, the first control plane network element may revoke the authorization of the first terminal device to use the first MBS service after the validity period of the authorization for the first terminal device to use the first MBS service expires.
  • the communication method provided by the embodiment of the present application further includes: the first control plane network element receives the first terminal device from the fourth control plane network element to use The authorization validity period of the first MBS service.
  • the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element determining the first The authorization information for the MBS service has changed. That is to say, in this embodiment of the present application, the first control plane network element may change the authorization information of the first MBS service (for example, the new authorization information is used to indicate that the first terminal device is not allowed to use the authorization of the first MBS service). ) revokes the authorization of the first terminal device to use the first MBS service.
  • the communication method provided by the embodiment of the present application further includes: the first control plane network element receives the first MBS service from the fourth control plane network element authorization information.
  • the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element receiving information from the first control plane network element Fourth message of the network element of the control plane, where the fourth message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may revoke the authorization of the first terminal device to use the first MBS service based on the revocation instruction of other network elements.
  • the communication method provided by the embodiment of the present application further The method includes: the first control plane network element sends a fifth message to the fourth control plane network element, where the fifth message includes the identifier of the first MBS service, and is used for requesting to subscribe to the authorization change event of the first MBS service.
  • the first control plane network element may learn the first MBS service authorization change event based on the subscription, and the first MBS service authorization change event may include, for example, at least one of the following: the first terminal device uses the first An event in which the authorization validity period of the MBS service is changed, the authorization information of the first MBS service is changed, or the authorization of the first terminal device to use the first MBS service is revoked.
  • the first control plane network element in this embodiment of the present application includes a unified data storage network element, a unified data management network element, an MBS control plane network element, a policy A control function network element, a network opening function network element or an application function network element;
  • the second control plane network element includes a session management network element or a mobility management network element.
  • a communication method comprising: a second control plane network element sending a first message to a first control plane network element, where the first message includes an identifier of the first multicast broadcast service MBS service and The identifier of the first terminal device is used to request authorization for the first terminal device to use the first MBS service; the second control plane network element receives the identifier of the first MBS service from the first control plane network element and the first terminal device uses the first MBS service.
  • the authorization result of the MBS service the authorization result includes authorization success or authorization failure; the second control plane network element determines the authorization success or authorization failure of the first MBS service of the first terminal device according to the authorization result and the identifier of the first MBS service.
  • the authorization result is authorization failure
  • the communication method provided by the embodiment of the present application further includes: the second control plane network element sends first indication information to the first terminal device, and the first indication information is used for Indicates that authorizing the first terminal device to use the first MBS service fails. Based on this solution, the first terminal device can learn that the authorization of the first terminal device to use the first MBS service fails.
  • the authorization result is authorization success
  • the communication method provided by the embodiment of the present application further includes: the second control plane network element establishes or updates the session of the first MBS service of the first terminal device; or, the first The second control plane network element sends a sixth message to the session management network element, where the sixth message is used to request to establish or update the session of the first MBS service. That is to say, in the embodiment of the present application, if the authorization result of the first terminal device using the first MBS service is that the authorization is successful, the subsequent establishment or update of the session of the first MBS service can be continued.
  • the authorization result is authorization success;
  • the communication method provided by the embodiment of the present application further includes: the second control plane network element receives the first terminal device from the first control plane network element using the first MBS The authorization validity period of the service; after the authorization validity period for the first terminal device to use the first MBS service expires, the second control plane network element may release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first MBS service session of the first terminal device.
  • the context of the PDU session related to the first MBS service of a terminal device so that the problem that the first MBS service is always used by the first terminal device can be avoided.
  • the second control plane network element is a session management network element; the communication method provided by the embodiment of the present application further includes: the second control plane network element determines to cancel the use of the first MBS by the first terminal device Service authorization; the second control plane network element releases the session of the first MBS service of the first terminal device, or deletes (or deactivates) the context of the PDU session related to the first MBS service of the first terminal device.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the second control plane network element is a mobility management network element; the communication method provided by the embodiment of the present application further includes: the second control plane network element determines to cancel the use of the first terminal device by the first terminal device.
  • Authorization of the first MBS service; the second control plane network element sends a seventh message to the session management network element, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release The session of the first MBS service of the first terminal device, or delete (or deactivate) the context of the PDU session related to the first MBS service of the first terminal device.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • a communication method comprising: the session management network element determines to revoke the authorization of the first terminal device to use the MBS service of the first multicast broadcast service; the session management network element releases the authorization of the first terminal device the session of the first MBS service.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element determining that the validity period of the authorization for the first terminal device to use the first MBS service ends. That is, in this embodiment of the present application, the session management network element may revoke the authorization of the first terminal device to use the first MBS service after the validity period of the authorization for the first terminal device to use the first MBS service expires.
  • the communication method provided by the embodiment of the present application further includes: the session management network element receives the authorization validity period of the first terminal device using the first MBS service from the fourth control plane network element.
  • the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element determining that the authorization information of the first MBS service has changed. That is to say, in this embodiment of the present application, the session management network element may be revoked after the authorization information of the first MBS service is changed (for example, the new authorization information is used to indicate the authorization that the first terminal device is not allowed to use the first MBS service). Authorization of the first terminal device to use the first MBS service.
  • the communication method provided by the embodiment of the present application further includes: the session management network element receives authorization information of the first MBS service from the fourth control plane network element.
  • the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element receives a fourth message from the fourth control plane network element, where the fourth message includes The identifier of the first MBS service and the identifier of the first terminal device are used to notify the revocation of the authorization of the first terminal device to use the first MBS service. That is, in this embodiment of the present application, the session management network element may revoke the authorization of the first terminal device to use the first MBS service based on the revocation instruction of other network elements.
  • the communication method provided in this embodiment of the present application further includes: the session management network element sends a request to the fourth control plane network The element sends a fifth message, where the fifth message includes the identifier of the first MBS service, and is used for requesting subscription to the authorization change event of the first MBS service.
  • the session management network element may learn the first MBS service authorization change event based on the subscription, and the first MBS service authorization change event may include, for example, at least one of the following: the first terminal device uses the first MBS service The authorization validity period of the first MBS service is changed, the authorization information of the first MBS service is changed, or the authorization of the first terminal device to use the first MBS service is revoked.
  • a communication method includes: a first control plane network element acquiring subscription data of a first MBS service; and a first control plane network element determining whether to authorize the first terminal device to use the subscription data according to the subscription data
  • the first MBS service is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
  • the subscription data of the first MBS service includes authorization information of the first MBS service; according to the subscription data, the first control plane network element determines whether to authorize the first terminal device to use the first MBS service, including : When the information of the first MBS service authorization indicates that authorization of the first terminal device to use the first MBS service is not allowed, the first control plane network element determines that the authorization of the first terminal device to use the first MBS service fails. Based on this solution, the first control plane network element can learn whether to authorize the first terminal device to use the first MBS service.
  • the communication method provided by the embodiment of the present application further includes: the first control plane network element sends first indication information to the first terminal device, where the first indication information is used to indicate that the first terminal device is authorized to use the The first MBS service failed. Based on this solution, the first terminal device can learn that the authorization of the first terminal device to use the first MBS service fails.
  • the subscription data of the first MBS service includes authorization information of the first MBS service; according to the subscription data, the first control plane network element determines whether to authorize the first terminal device to use the first MBS service, including : When the information of the first MBS service authorization indicates that the first terminal device is authorized to use the first MBS service, the first control plane network element determines that the first terminal device is authorized to use the first MBS service.
  • acquiring the subscription data of the first MBS service by the first control plane network element includes: the first control plane network element receiving a second message from the second control plane network element, the second message It includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to obtain the subscription data of the first MBS service; the first control plane network element determines the subscription data of the first MBS service according to the identifier of the first MBS service;
  • the communication method provided by the embodiment of the present application further includes:
  • the first control plane network element sends subscription data of the first MBS service to the second control plane network element. That is to say, in this embodiment of the present application, the first control plane network element may acquire subscription data of the first MBS service based on request messages of other network elements.
  • acquiring the subscription data of the first MBS service by the first control plane network element includes: the first control plane network element sends a first message to the second control plane network element, where the first message includes the first The identifier of the MBS service is used to request to obtain subscription data of the first MBS service; the first control plane network element receives the subscription data from the second control plane network element. That is, in this embodiment of the present application, the first control plane network element may acquire subscription data of the first MBS service from other network elements.
  • the first message further includes second indication information, where the second indication information is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the network element of the second control plane can learn, according to the second indication information, that the requested subscription data is the subscription data of the MBS service.
  • the subscription data of the first MBS service further includes the validity period of the authorization of the first MBS service.
  • the first control plane network element or the second control plane network element can release the session of the first MBS service of the first terminal device, or, delete (or Deactivate) the context of the PDU session related to the first MBS service of the first terminal device, so that the problem that the first MBS service is always used by the first terminal device can be avoided.
  • a communication method comprising: a second control plane network element receiving a first message from a first control plane network element, where the first message includes an identifier of the first MBS service for requesting Obtain the subscription data of the first MBS service; the second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service; the second control plane network element sends the first MBS service to the first control plane network element
  • the subscription data includes the first MBS service authorization information.
  • the first control plane network element can determine whether to authorize the first terminal device to use the first MBS service according to the subscription data.
  • the subscription data further includes the validity period of the first MBS service authorization.
  • the first control plane network element can release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first terminal device
  • the context of the PDU session related to the first MBS service can avoid the problem that the first MBS service is always used by the first terminal device.
  • a communication method comprising: a second control plane network element receiving a first message from a first control plane network element, where the first message includes an identifier of the first MBS service for requesting Obtain the subscription data of the first MBS service; the second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service; the second control plane network element sends third indication information to the first control plane network element , and the third indication information is used to indicate that the acquisition of subscription data for the first MBS service fails.
  • the network element of the first control plane may determine, according to the third indication information, that authorizing the first terminal device to use the first MBS service fails.
  • the first message further includes second indication information, where the second indication information is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the network element of the second control plane can learn, according to the second indication information, that the requested subscription data is the subscription data of the MBS service.
  • a communication device for implementing the above method.
  • the communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements.
  • the communication device includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or hardware executing corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • a communication device comprising: a processor and a memory; the memory is used for storing computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the above aspects.
  • the communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements.
  • a communication device comprising: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the method according to any one of the preceding aspects according to the instruction.
  • the communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements.
  • a communication device comprising: a processor interface circuit; an interface circuit for receiving a computer program or instruction and transmitting it to a processor; the processor for executing the computer program or instruction to enable the communication
  • the apparatus performs a method as described in any of the above aspects.
  • a twelfth aspect provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when executed on a computer, the computer can perform the method described in any of the above aspects.
  • a thirteenth aspect provides a computer program product comprising instructions which, when run on a computer, enable the computer to perform the method of any of the preceding aspects.
  • a fourteenth aspect provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), the communication apparatus includes a processor for implementing the functions involved in any of the above aspects.
  • the communication device further includes a memory for storing necessary program instructions and data.
  • the communication device is a chip system, it may be constituted by a chip, or may include a chip and other discrete devices.
  • a fifteenth aspect provides a communication system, the communication system includes a first control plane network element and a second control plane network element; the second control plane network element is configured to send a first message to the first control plane network element , the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; the first control plane network element is used to receive information from the second control plane network element and the first message of the first MBS service, and according to the identification of the first MBS service and the identification of the first terminal device, determine the authorization result of the first terminal device using the first MBS service, and the authorization result includes authorization success or authorization failure; the first control plane network The second control plane network element is also used to receive the identification and authorization of the first MBS service from the first control plane network element.
  • a sixteenth aspect provides a communication system, the communication system includes a first control plane network element and a session management network element; the first control plane network element is configured to determine to revoke the authorization of the first terminal device to use the first MBS service Afterwards, a first message is sent to the session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the session management network element is configured to receive the first message from the first control plane network element and release the session of the first MBS service of the first terminal device.
  • a seventeenth aspect provides a communication system, the communication system includes a first control plane network element and a second control plane network element; the first control plane network element is configured to send a first message to the second control plane network element , the first message includes the identifier of the first MBS service, which is used to request the acquisition of subscription data of the first MBS service; the second control plane network element is used to receive the first message from the first control plane network element, and according to the first control plane network element An identifier of the MBS service, to search for the subscription data of the first MBS service; the second control plane network element is further configured to send the subscription data of the first MBS service to the first control plane network element, where the subscription data includes the first MBS service Authorization information; the first control plane network element is further configured to determine whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service.
  • the fifth aspect or the sixth aspect which will not be repeated here.
  • Figure 1 is a schematic diagram of the 3G/4G MBMS architecture defined in the 3GPP standard
  • Figure 2 is a schematic diagram of a possible architecture of the 5G MBS baseline architecture 1;
  • Figure 3 is a schematic diagram of another possible architecture of the 5G MBS baseline architecture 1;
  • Figure 4 is a schematic diagram of a possible architecture of the 5G MBS baseline architecture 2;
  • Figure 5 is a schematic diagram of another possible architecture of the 5G MBS baseline architecture 2;
  • FIG. 6 is a schematic diagram 1 of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 7 is a second schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram 1 of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram 1 of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 11 is a second schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram 3 of an interaction flow of the communication method provided by the embodiment of the present application.
  • FIG. 13 is a fourth schematic diagram of an interaction flow of the communication method provided by the embodiment of the present application.
  • FIG. 14 is a schematic diagram five of the interaction flow of the communication method provided by the embodiment of the present application.
  • FIG. 15 is a sixth schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application.
  • 16 is a seventh schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 17 is a schematic diagram eight of the interaction flow of the communication method provided by the embodiment of the present application.
  • FIG. 18 is a schematic diagram 9 of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 19 is a schematic diagram ten of an interaction flow of a communication method provided by an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the 3G/4G MBMS architecture is defined in the 3GPP standard. As shown in Figure 1, the 3G/4G MBMS architecture includes terminal equipment, 3G/4G wireless access network equipment, user plane network elements, control plane network elements, and a broadcast-multicast service center (broadcast-multicast service center, BM- SC) and application function (AF). Among them, the BM-SC is used to authorize the MBMS bearer service.
  • the network side performs MBS service authorization on the terminal device through the user. Specifically, the terminal device sends a request message to the user plane network element through the 3G/4G wireless access network device, where the request message is used to request to obtain data of a certain MBS service.
  • the user plane network element After receiving the request message, the user plane network element sends an authorization request to the BM-SC, where the authorization request is used to request the authorization terminal device to obtain the data of the first MBS service. Further, after determining whether to authorize the terminal device to use the first MBS service, the BM-SC returns an authorization result to the user plane network element, where the authorization result includes authorization success or authorization failure. When the authorization result is successful, the user plane network element creates or activates the bearer for transmitting the first MBS data.
  • the 5G MBS architecture is proposed, including: 5G MBS baseline architecture 1 and 5G MBS baseline architecture 2.
  • the 5G MBS baseline architecture 1 is based on the existing 5G architecture and enhances certain network functions (NFs) in the existing 5G architecture.
  • the 5G MBS baseline architecture 1 includes: AF, network exposure function (NEF)/policy control function (PCF), session management function (SMF), user User plane function (UPF), access and mobility management function (AMF), unified data repository (UDR) network element/unified data management (UDM) Network elements, next generation-radio access network (NG-RAN) equipment, and user equipment (UE).
  • the AF in the 5G MBS baseline architecture 1 is the source of multicast and/or broadcast data, calling the MBS service provided by the 5G system, and sending multicast and/or multicast data to multiple UEs through the 5G system.
  • the NEF in the 5G MBS baseline architecture 1 is based on the NEF in the existing 5G architecture, and enhances the functions of the NEF in the existing 5G architecture, including: 5G MBS opening; of service, QoS), 5G MBS service domain, etc.
  • the PCF in the 5G MBS baseline architecture 1 is based on the PCF in the existing 5G architecture, and enhances the functions of the PCF in the existing 5G architecture, including: supporting 5G MBS; providing MBS session-related policy messages to SMF; directly or indirectly Receive MBS service information and the like from the AF locally (eg, through the NEF).
  • the SMF in the 5G MBS baseline architecture 1 is based on the SMF in the existing 5G architecture, and the SMF functions in the existing 5G architecture are enhanced, including: controlling MBS transmission based on the MBS policy received from the PCF; configuring MBS flow on the UPF And point-to-point or point-to-multipoint transmission; configure MBS flow and QoS information on NG-RAN equipment; configure session management of MBS flow on UE, etc.
  • the UPF in the 5G MBS baseline architecture 1 is based on the UPF in the existing 5G architecture, and the UPF in the existing 5G architecture is functionally enhanced, including: support for packet filtering of MBS streams; point-to-point or point-to-multipoint methods Transmit MBS stream to NG-RAN equipment; receive MBS configuration from SMF; check Internet group management protocol (IGMP) packet and notify SMF of IGMP packet; receive AF unicast or multicast stream, etc.
  • IGMP Internet group management protocol
  • the NG-RAN equipment in the 5G MBS Baseline Architecture 1 is based on the NG-RAN equipment in the existing 5G architecture, and the functions of the NG-RAN equipment in the existing 5G architecture are enhanced, including: receiving UPF to send MBS streams, and unicast switching to transmit MBS streams, etc.
  • the UE in the 5G MBS baseline architecture 1 is based on the UE in the existing 5G architecture, and enhances the functions of the UE in the existing 5G architecture, including: support for MBS policy configuration; support for session management of MBS streams; support for the use of MBS streams; access Layers of MBS support, etc.
  • the AMF in the 5G MBS Baseline Architecture 1 is used to manage the access and mobility of the UE, specifically including: UE registration, UE mobility management, NAS connection, access authentication and authorization, and providing transmission for UE and SMF.
  • the UDM in the 5G MBS Baseline Architecture 1 is used to handle user equipment identification, access authentication, registration, and mobility management.
  • the UDR in the 5G MBS Baseline Architecture 1 is used to store data, including subscription data, policy data, and application data.
  • the 3GPP research project report also proposes a service mode architecture based on the 5G MBS baseline architecture 1, that is, adding a multicast service function on the basis of the 5G MBS baseline architecture 1 (
  • the 5G MBS baseline architecture 1 of the multicast service function, MSF) is shown in Figure 3.
  • the MSF includes an MSF control plane function (MSF control plane, MSF-C) and an MSF user plane function (MSF user plane, MSF-U).
  • MSF-C is used to transmit and process MBS-related signaling between AF and 5G core network, such as multicast service configuration, MBS bearer activation, etc.
  • MSF-U is used for user plane data transmission, user plane data encoding, etc.
  • 5G MBS Baseline Architecture 2 introduces a new NF on the existing 5G system architecture, and enhances the functions of existing UE and NG-RAN equipment to support 5G MBS.
  • the 5G MBS baseline architecture 2 includes AF, NEF, PCF, UDM/UDR, AMF, multicast/broadcast session management function (MB-SMF) and multicast broadcast user plane function ( multicast/broadcast user plane function, MB-UPF), NG-RAN equipment, and UE.
  • 5G MBS baseline architecture 2 the description of AF, UDM/UDR, AMF, NG-RAN equipment or UE in 5G MBS baseline architecture 2 can refer to 5G MBS baseline architecture 1, which will not be repeated here.
  • the PCF in the 5G MBS baseline architecture 2 is based on the PCF in the existing 5G architecture, and enhances the functions of the PCF in the existing 5G architecture, including: supporting MBS-related policies and charging.
  • the MB-SMF in the 5G MBS baseline architecture 2 and the MB-UPF in the 5G MBS baseline architecture 2 are newly introduced NFs. Among them, the MB-SMF in the 5G MBS baseline architecture 2 is used for MBS session management and so on. MB-UPF in 5G MBS Baseline Architecture 2 is used to transmit multicast and broadcast data.
  • the 3GPP research project report also proposes a service mode architecture based on the 5G MBS baseline architecture 2, that is, adding multicast and broadcast services on the basis of the 5G MBS baseline architecture 2
  • User plane function multicast/broadcast service user plane, MBSU
  • multicast and broadcast service function multicast/broadcast service function, MBSF
  • the MBSF is used to transmit and process the MBS-related signaling between the AF and the 5G core network.
  • MBSU is used to transmit multicast and broadcast data etc.
  • the MBSF may be independently deployed with network functions, or may be deployed as a part of the NEF, which is not specifically limited in this embodiment of the present application.
  • At least one item(s) below or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items with basically the same function and effect.
  • words “first”, “second” and the like do not limit the quantity and execution order, and the words “first”, “second” and the like are not necessarily different.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as “exemplary” or “such as” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “exemplary” or “such as” is intended to present the related concepts in a specific manner to facilitate understanding.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • a communication system 60 is provided in an embodiment of the present application.
  • the communication system 60 includes a first control plane network element 601 and a second control plane network element 602 .
  • the first control plane network element 601 and the second control plane network element 602 may communicate directly or communicate through forwarding by other devices, which is not specifically limited in this embodiment of the present application.
  • control plane network elements in the embodiments of the present application are used for receiving and sending Or process the messages on the signaling plane, which are described here in a unified manner, and will not be repeated below.
  • the second control plane network element 602 is used to send a first message to the first control plane network element 601, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization of the first terminal
  • the device uses the first MBS service.
  • the first control plane network element 601 is configured to, after receiving the first message, determine an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, and report the result to the second controller.
  • the plane network element sends the identification of the first MBS service and the authorization result, where the authorization result includes authorization success or authorization failure.
  • the second control plane network element 602 is configured to receive the identifier of the first MBS service and the authorization result from the first control plane network element, and determine that the first terminal device uses the first MBS according to the authorization result and the identifier of the first MBS service Authorization of the service succeeded or authorization failed.
  • the specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here.
  • This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
  • using the first MBS service may also be replaced by acquiring data of the first MBS service, joining the first MBS service, or joining a multicast group of the first MBS service, or the like. That is to say, in the embodiments of the present application, using the first MBS service, obtaining data of the first MBS service, joining the first MBS service, or joining the multicast group of the first MBS service all express the same meaning and can be used interchangeably.
  • a unified description is provided, and details are not repeated below.
  • the first control plane network element 601 may include a unified data storage network element, a unified data management network element, an MBS control plane (MBS control plane, MBS-C) network element, and a policy control function network. elements, network open function network elements, or application function network elements, etc.
  • MBS control plane MBS-C
  • policy control function network elements, network open function network elements, or application function network elements, etc.
  • the second control plane network element 602 includes a session management network element or a mobility management network element.
  • the first control plane network element 601 when the second control plane network element 602 is a session management network element, the first control plane network element 601 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service, A third message is sent to the second control plane network element 602, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the communication system 60 in the embodiment of the present application may further include a session management network element 603 .
  • the first control plane network element 601 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service, and send a third message to the session management network element 603, where the third message includes the identifier of the first MBS service and the The identifier of the first terminal device is used to notify the release of the session of the first MBS service of the first terminal device.
  • the session management network element 603 is configured to receive the third message and release the session of the first MBS service of the first terminal device.
  • the communication system 70 includes a first control plane network element 701 and a session management network element 702 .
  • the first control plane network element 701 and the session management network element 702 may communicate directly or communicate through forwarding by other devices, which is not specifically limited in this embodiment of the present application.
  • the first control plane network element 601 is configured to determine to revoke the authorization of the first terminal device to use the first MBS service, and send a first message to the session management network element, where the first message includes the identifier of the first MBS service and the first message.
  • the identifier of the terminal device is used to notify the release of the session of the first MBS service of the first terminal device.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the first control plane network element 701 may include a unified data storage network element, a unified data management network element, an MBS-C network element, a policy control function network element, a network open function network element, or an application. functional network elements, etc.
  • the network elements or entities corresponding to the above-mentioned unified data storage network elements may be those in FIG. 2 to FIG. 5 .
  • the network elements or entities corresponding to the above application function network elements may be Figs. 2 to 5 AF in 5; the above-mentioned MBS-C network element may be the MSF-C in FIG. 3 or the MBSF in FIG. 5 ; the network element or entity corresponding to the above-mentioned session management network element may be the one in FIG. 2 or FIG. 3
  • the SMF network element may also be the MB-SMF network element in FIG. 4 or FIG. 5 , which is described in a unified manner here, and will not be repeated below.
  • the terminal device in this embodiment of the present application may be a device for implementing a wireless communication function, such as a terminal or a chip that can be used in the terminal, and the like.
  • the terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device in a 5G network or a future evolved PLMN. equipment, terminal agent or terminal device, etc.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. Terminals can be mobile or stationary.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • a wireless communication Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving,
  • the RAN device in this embodiment of the present application refers to a device that accesses the core network, and may be, for example, a base station, a broadband network gateway (broadband network gateway, BNG), an aggregation switch, or a non-third-generation partnership project ( 3rd generation partnership project, 3GPP) access equipment, etc.
  • the base station may include various forms of base stations, such as: a macro base station, a micro base station (also called a small station), a relay station, an access point, and the like.
  • the first control plane network element, the second control plane network element, or the session management network element in this embodiment of the present application may also be referred to as a communication device, which may be a general-purpose device or a dedicated device. The embodiment does not specifically limit this.
  • the related functions of the first control plane network element, the second control plane network element, or the session management network element in this embodiment of the present application may be implemented by one device, or may be implemented jointly by multiple devices, or may be implemented by a single device. It is implemented by one or more functional modules in a device, which is not specifically limited in this embodiment of the present application. It is to be understood that the above-mentioned functions can be either network elements in hardware devices, or software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (eg, a cloud platform). Virtualization capabilities.
  • FIG. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 includes one or more processors 801, a communication line 802, and at least one communication interface (in FIG. 8, it is only an example to include a communication interface 804 and a processor 801 for illustration), optional
  • the memory 803 may also be included.
  • the processor 801 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 802 may include a path for connecting the various components.
  • the communication interface 804 can be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (wireless local area networks, WLAN) and the like.
  • the transceiver module may be a device such as a transceiver or a transceiver.
  • the communication interface 804 may also be a transceiver circuit located in the processor 801 to implement signal input and signal output of the processor.
  • the memory 803 may be a device having a storage function. For example, it may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of storage devices that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this.
  • the memory may exist independently and be connected to the processor through communication line 802 .
  • the memory can also be integrated with the processor.
  • the memory 803 is used for storing computer-executed instructions for executing the solution of the present application, and the execution is controlled by the processor 801 .
  • the processor 801 is configured to execute the computer-executed instructions stored in the memory 803, so as to implement the communication method provided in the embodiments of the present application.
  • the processor 801 may also perform processing-related functions in the communication methods provided in the following embodiments of the present application, and the communication interface 804 is responsible for communicating with other devices or communication networks.
  • the embodiment does not specifically limit this.
  • the computer-executed instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.
  • the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8 .
  • the communication device 800 may include multiple processors, such as the processor 801 and the processor 808 in FIG. 8 .
  • processors can be a single-core processor or a multi-core processor.
  • the processor here may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or artificial intelligence Processors and other types of computing devices that run software, each computing device may include one or more cores for executing software instructions to perform operations or processing.
  • the communication device 800 may further include an output device 805 and an input device 806 .
  • the output device 805 is in communication with the processor 801 and can display information in a variety of ways.
  • the output device 805 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • Input device 806 is in communication with processor 801 and can receive user input in a variety of ways.
  • the input device 806 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.
  • the above-mentioned communication device 800 may also be sometimes referred to as a communication device, which may be a general-purpose device or a dedicated device.
  • the communication device 800 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, the above-mentioned terminal device, the above-mentioned network device, or a 8 devices of similar structure.
  • PDA personal digital assistant
  • This embodiment of the present application does not limit the type of the communication device 800 .
  • the first control plane network element is the UDM/UDR network in FIG. 2 to FIG. 5 .
  • the network element of the second control plane is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 ), then the embodiments of the present application provide
  • the communication method can be shown in Figure 9, including the following steps:
  • S901 a service announcement (service announcement) process.
  • service announcement service announcement
  • the first terminal device can acquire information of the MBS user service.
  • the first terminal device in this embodiment of the present application may be any UE in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the first terminal device registers with the network.
  • step S901 may be executed first, and then step S902 may be executed; or step S902 may be executed first, and then step S901 may be executed; Step S901 and step S902 may be performed simultaneously, which is not specifically limited in this embodiment of the present application.
  • the first terminal device uses the first MBS service, the first terminal device performs any one of the following operations:
  • Operation 1 Join the first MBS service through the control plane, including the following steps S903-S904:
  • the first terminal device sends an N1 message to the AMF network element.
  • the AMF network element receives the N1 message from the first terminal device.
  • the N1 message is used for requesting to establish (or modify) a protocol data unit (protocol data unit, PDU) session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting Join a multicast group, or a context for requesting activation of the first MBS service.
  • PDU protocol data unit
  • the N1 message includes an identifier (MBS service identifier) of the first MBS service.
  • MBS service identifier is used to identify the first MBS service.
  • the identifier of the first MBS service may be a multicast internet protocol (internet protocol, IP) address of the first MBS service, or a temporary mobile group identity (temporary mobile group identity, TMGI) of the first MBS service.
  • IP internet protocol
  • TMGI temporary mobile group identity
  • the N1 message may further include single network slice selection assistance information (network slice selection assistance information, S-NSSAI) and/or a data network name (data network name, DNN).
  • S-NSSAI network slice selection assistance information
  • DNN data network name
  • the N1 message in this embodiment of the present application may be, for example, a PDU session establishment request (PDU session establishment request) message.
  • PDU session establishment request PDU session establishment request
  • the AMF network element in this embodiment of the present application may be an AMF in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the AMF network element sends message 2 to the SMF network element.
  • the SMF network element receives the message 2 from the AMF network element.
  • message 2 is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
  • the message 2 includes the identification of the first MBS service.
  • the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
  • Operation 2 Join the first MBS service through the control plane, including the following steps S905-S907:
  • the first terminal device sends an N1 message to the AMF network element.
  • the AMF network element receives the N1 message from the first terminal device.
  • step S905 can refer to the above-mentioned step S903, and details are not repeated here.
  • the AMF network element sends message 2 to an intermediate SMF (intermediate, I-SMF) network element.
  • I-SMF intermediate, I-SMF
  • the I-SMF network element receives the message 2 from the AMF network element.
  • message 2 is used to request the creation (or modification) of the PDU session context.
  • the SMF network element is the anchor SMF or control SMF corresponding to the first MBS service
  • the I-SMF network element is the PDU session management network element selected by the AMF network element that can serve the first terminal device.
  • step S906 can refer to the above-mentioned step S904, the difference is that the SMF network element in step S904 is replaced with the I-SMF network element in step S906, which is not repeated here.
  • the I-SMF network element sends message 3 to the SMF network element.
  • the SMF receives the message 3 from the I-SMF network element.
  • message 3 is used to request the creation (or modification) of the PDU session context.
  • the message 3 includes the identifier of the first MBS service.
  • the message 3 may further include the S-NSSAI and/or the DNN in the N1 message.
  • Operation 3 Join the first MBS service through the user plane, including the following steps S908-S909:
  • the first terminal device sends message 4 to the UPF network element.
  • the UPF network element receives the message 4 from the first terminal device.
  • message 4 is used to request to join a multicast group.
  • the message 4 in the embodiment of the present application includes the identifier of the first MBS service.
  • the message 4 in this embodiment of the present application may further include S-NSSAI and/or DNN.
  • S-NSSAI is used to indicate the slice used by the first MBS service.
  • the DNN is used to identify the data network where the first MBS service is located.
  • the message 4 in this embodiment of the present application may be, for example, an internet group management protocol (internet group management protocol, IGMP) join (IGMP join) message or a multicast listener report (multicast listener report, MLR) message.
  • IGMP internet group management protocol
  • MLR multicast listener report
  • the UPF network element in the embodiment of the present application may be the UPF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or may be the UPF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 .
  • the MB-UPF is described in a unified manner here, and will not be repeated below.
  • the UPF network element sends a user plane event notification (user plane event notify) to the SMF network element.
  • the SMF network element receives the user plane event notification from the UPF network element.
  • the user plane event notification includes the identifier of the first MBS service, which is used to notify the SMF network element that the IGMP Join or MLR message is received.
  • the user plane event notification may further include S-NSSAI and/or DNN.
  • the UPF network element may send a user plane event notification to the SMF network element through other SMF network elements (such as the SMF1 network element), which is not specifically limited in the embodiment of the present application.
  • the SMF network element is the anchor SMF or the control SMF corresponding to the first MBS service
  • the SMF1 is the PDU session management network element serving the first terminal device.
  • the first terminal device may request to join the first MBS service.
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S910-S915:
  • the SMF network element sends an authorization request (authorization request) to the UDM/UDR network element.
  • the UDM/UDR network element receives the authorization request from the SMF network element.
  • the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
  • the authorization request includes the identifier of the first MBS service and the identifier of the first terminal device.
  • the identifier of the first terminal device may include, for example, a subscription concealed identifier (SUCI), a 5G-global unique temporary identifier (GUTI), and a general public user identifier.
  • SUCI subscription concealed identifier
  • GUI 5G-global unique temporary identifier
  • general public user identifier generator public subscription identifier, GPSI), permanent equipment identifier (permanent equipment identifier, PEI), or the user identifier when the first terminal device uses the first MBS service, or the user's MBS subscription user identifier, etc. This is not specifically limited.
  • the use of the first MBS service by the first terminal device may include that the first terminal device obtains data of the first MBS service, which is described here in a unified manner, and will not be repeated below.
  • the UDM/UDR network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • the authorization result includes authorization success or authorization failure.
  • the UDM/UDR network element determines the authorization result of the first terminal device using the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: the UDM/UDR network element according to The identifier of the first MBS service acquires the subscription data of the corresponding first MBS service, and the subscription data includes authorization information (which may also be understood as authority information) of the first MBS service.
  • the UDM/UDR network element checks the authorization information of the first MBS service, and if the authorization information indicates that the first terminal device is authorized to use the first MBS user service, the authorization result is that the authorization is successful; or, if the authorization information indicates that the authorization is successful If the first terminal device is not authorized to use the first MBS user service, the authorization result is authorization failure.
  • the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and “1” indicates that the authorization fails; or, "1" indicates that the authorization is successful, and “0” indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
  • the UDM/UDR network element sends an authorization response (authorization response) to the SMF network element.
  • the SMF network element receives the authorization response from the UDM/UDR network element.
  • the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
  • the authorization response may further include an identifier of the first terminal device, and the SMF network element determines that the applicable object of the authorization result is the first terminal device.
  • the SMF network element may also determine that the object to which the authorization result applies is the first terminal device according to the session identifier between the SMF network element and the UDM/UDR network element. The embodiment does not specifically limit this.
  • the authorization response may further include an authorization validity period for the first terminal device to use the first MBS service.
  • the SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
  • the communication method provided by the embodiment of the present application may further include the following step S914:
  • the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
  • the session in which the SMF network element establishes or updates the first MBS service of the first terminal device specifically includes any one or more of the following:
  • the SMF network element sends a message for establishing or modifying the N4 session to the UPF network element;
  • the SMF network element sends a message for establishing policy association to the PCF network element
  • SMF network element sends N2 message to NG-RAN equipment through AMF network element;
  • the SMF network element sends an N1 message to the first terminal device through the AMF network element;
  • the SMF network element sends a session establishment or modification response message, or an MBS context creation or activation response message to the I-SMF network element or the SMF1 network element;
  • the SMF network element sends a message for requesting session establishment to MBS-C; or,
  • the SMF network element sends an MBS context creation or activation response message to the AMF network element.
  • the communication method provided by the embodiment of the present application may further include the following step S915:
  • the SMF network element sends indication information 1 to the first terminal device.
  • the first terminal device receives the indication information 1 from the SMF network element.
  • the indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the SMF network element if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
  • the above steps S910-S915 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S916-S918.
  • the UDM/UDR network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the conditions for the UDM/UDR network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
  • the validity period of the authorization for the first terminal device to use the first MBS service ends; or,
  • the authorization information for the first MBS service changes; or,
  • the UDM/UDR network element receives a notification message from the AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service .
  • the UDM/UDR network element may also send a subscription message to the AF network element or the NEF network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
  • the first MBS service authorization change event may include, for example, at least one of the following: the validity period of authorization for the first terminal device to use the first MBS service is changed, and the authorization information of the first MBS service is changed. Or an event of revoking the authorization of the first terminal device to use the first MBS service. This description is applicable to all the embodiments of the present application, and is uniformly described here, and will not be repeated below.
  • the interaction between the AF network element and the UDM/UDR network element needs to be performed through network elements such as NEF network element or proxy (Proxy), which is unified here. Description, which will not be repeated below.
  • the UDM/UDR network element sends a revocation request message to the SMF network element.
  • the SMF network element receives the revocation request message from the UDM/UDR network element.
  • the revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
  • the UDM/UDR network element may also obtain the corresponding S-NSSAI and/or DNN according to the received identifier of the first MBS service.
  • the S-NSSAI is used to indicate the slice used by the first MBS service.
  • the DNN is used to identify the data network where the first MBS service is located.
  • the revocation request message may include the S-NSSAI corresponding to the first MBS service, and/or the DNN, which is not specifically limited in this embodiment of the present application.
  • the SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • revoking the authorization of the first terminal device to use the first MBS service may be understood as releasing the session of the first MBS service of the first terminal device, or deleting (or deactivating) the first MBS of the first terminal device
  • the context of the service-related PDU session is uniformly described here, and will not be repeated below.
  • the SMF network element revoking the authorization of the first terminal device to use the first MBS service includes at least one of the following:
  • the SMF network element sends a request message to the UPF network element, where the request message is used to request to release the user plane resources of the PDU session of the first MBS service of the first terminal device; or,
  • the SMF network element sends a request message to the AMF network element or the first terminal device, where the request message is used to request to release the PDU session of the first MBS service of the first terminal device; or,
  • the SMF network element sends a request message to the AMF network element or the NG-RAN device, where the request message is used to request deletion or deactivation of the first MBS service context of the first terminal device; or,
  • the SMF network element sends a notification message to the first terminal device, where the notification message is used to notify the first terminal device that the authorization to use the first MBS service is revoked or that the validity period of the authorization for the first terminal device to use the first MBS service ends.
  • the SMF network element before the SMF network element sends the above message, it is necessary to determine, according to the received identifier of the first MBS service and the identifier of the first terminal device, the corresponding value of the first MBS service of the first terminal device.
  • the PDU session, or the identifier of the PDU session, or the identifier of the context of the PDU session, and the above message carries the PDU session corresponding to the first MBS service of the first terminal device, or the identifier of the PDU session, or the PDU session.
  • the identity of the context
  • the above message also includes the identifier of the first terminal device, which is not specifically limited in this embodiment of the present application.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S916-S918, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S910-S915 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S916-S918 are independent of each other. Yes, they can be decoupled from each other.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S910-S915 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service;
  • the authorization process for revoking the first terminal device to use the first MBS service provided in steps S916-S918 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
  • the actions of the UDM/UDR network element or the SMF network element in the above steps S901 to S918 may be called by the processor 801 in the communication device 800 shown in FIG. 8 to the application code stored in the memory 803 to instruct the UDM/UDR network element.
  • element or SMF network element does not impose any limitation on this.
  • the first control plane network element is the MBS-C network element (the MBS here).
  • -C network element can be MSF-C in FIG. 3 or MBSF in FIG. 5) or PCF network element
  • the second control plane network element is SMF network element (the SMF network element here can be the one in FIG. 2 or FIG. 3 )
  • the SMF may also be the MB-SMF in FIG. 4 or FIG. 5 ), then the communication method provided by the embodiment of the present application may be as shown in FIG. 10 , including the following steps:
  • S1001-S1009 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • steps S901-S909 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1010-S1015:
  • the SMF network element sends an authorization request (authorization request) to the MBS-C/PCF network element.
  • the MBS-C/PCF network element receives the authorization request from the SMF network element.
  • the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
  • the authorization request includes the identification of the first MBS service and the identification of the first terminal device.
  • step S1010 For the description of step S1010, reference may be made to step S910 in the embodiment shown in FIG. 9. The difference is, for example, that the UDM/UDR network element in step S910 is replaced with the MBS-C/PCF network element in step S1010, and the This will not be repeated here.
  • the MBS-C/PCF network element determines, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service.
  • the authorization result includes authorization success or authorization failure.
  • the MBS-C/PCF network element determines the authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: MBS-C/ The PCF network element sends a request message to the UDM/UDR network element, where the request message includes the identifier of the first MBS service and is used to request the subscription data of the first MBS service; the MBS-C/PCF network element receives data from the UDM/UDR network element subscription data of the first MBS service, where the subscription data includes authorization information of the first MBS service.
  • the MBS-C/PCF checks the authorization information of the first MBS service, and if the authorization information indicates that the first terminal device is authorized to use the first MBS user service, the authorization result is that the authorization is successful; or, if the authorization information indicates that the authorization is successful If the first terminal device is not authorized to use the first MBS user service, the authorization result is authorization failure.
  • the MBS-C/PCF network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: MBS-C /The PCF network element sends a request message to the AF/NEF network element, where the request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; MBS-C/ The PCF network element receives the authorization result of the first terminal device using the first MBS service from the AF/NEF network element.
  • the MBS-C/PCF network element receives the authorization validity period for the first terminal device to use the first MBS service from the AF/NEF network element.
  • the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and “1” indicates that the authorization fails; or, "1" indicates that the authorization is successful, and “0” indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
  • the MBS-C/PCF network element sends an authorization response (authorization response) to the SMF network element.
  • the SMF network element receives the authorization response from the MBS-C/PCF network element.
  • the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
  • step S1012 For the description of step S1012, reference may be made to step S912 in the embodiment shown in FIG. 9. The difference is, for example, that the UDM/UDR network element in step S912 is replaced with the MBS-C/PCF network element in step S1012, and the This will not be repeated here.
  • the SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
  • the communication method provided by the embodiment of the present application may further include the following step S1014:
  • the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
  • step S914 For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
  • the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
  • the communication method provided by the embodiment of the present application may further include the following step S1015:
  • the SMF network element sends indication information 1 to the first terminal device.
  • the first terminal device receives the indication information 1 from the SMF network element.
  • the indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the SMF network element if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
  • the above steps S1010-S1015 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided in this embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1016-S1018.
  • the MBS-C/PCF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the conditions for the MBS-C/PCF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
  • the validity period of the authorization for the first terminal device to use the first MBS service ends; or,
  • the authorization information for the first MBS service changes; or,
  • the MBS-C/PCF network element receives a notification message from the AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first MBS service authorization; or,
  • the MBS-C/PCF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the first terminal device from using the first MBS service authorization.
  • the MBS-C/PCF network element may also send a subscription message to the AF/NEF network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
  • the MBS-C/PCF network element may also send a subscription message to the UDM/UDR network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
  • the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application.
  • the NEF network element needs to pass between the AF network element and the UDM/UDR network element, or between the AF network element and the MBS-C/PCF network element.
  • Elements or network elements such as a proxy (Proxy) interact with each other, which will be described in a unified manner here, and will not be repeated below.
  • the MBS-C/PCF network element sends a revocation request message to the SMF network element.
  • the SMF network element receives the revocation request message from the MBS-C/PCF network element.
  • the revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
  • step S1017 For the relevant description of step S1017, reference may be made to step S917 in the embodiment shown in FIG. 9 .
  • the difference is, for example, that the UDM/UDR network element in step S917 is replaced with the MBS-C/PCF network element in step S1017, here No longer.
  • the SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • step S1018 is the same as step S918 in the embodiment shown in FIG. 9 , for details, reference may be made to the embodiment shown in FIG. 9 , and details are not repeated here.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1016-S1018, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1010-S1015 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1016-S1018 are independent of each other. Yes, they can be decoupled from each other.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1010-S1015 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service;
  • the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1016-S1018 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
  • the actions of the MBS-C/PCF network element or the SMF network element in the above steps S1001 to S1018 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the MBS-C/PCF network element.
  • the implementation of the C/PCF network element or the SMF network element is not limited in this embodiment.
  • the first control plane network element is an AF network element (where the AF can be AF in FIG. 2 to FIG. 5 )
  • the second control plane network element is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 )
  • the communication method provided by the embodiment of the present application may be as shown in FIG. 11 , including the following steps:
  • S1101-S1109 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • steps S901-S909 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • details refer to the embodiment shown in FIG. 9 , and details are not repeated here.
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1110-S1118:
  • the SMF network element sends an authorization request (authorization request) to the AF network element.
  • the AF network element receives the authorization request from the SMF network element.
  • the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
  • the authorization request includes the identifier of the first MBS service and the identifier of the first terminal device.
  • step S1110 For the description of step S1110, reference may be made to step S910 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S910 is replaced with the AF network element in step S1010, which will not be repeated here. .
  • the AF network element determines, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service.
  • the authorization result includes authorization success or authorization failure.
  • the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and “1” indicates that the authorization fails; or, "1" indicates that the authorization is successful, and “0” indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
  • the AF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
  • the AF network element sends an authorization response (authorization response) to the SMF network element.
  • the SMF network element receives the authorization response from the AF network element.
  • the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
  • step S1112 For the description of step S1112, reference may be made to step S912 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S912 is replaced with the AF network element in step S1112, which will not be repeated here. .
  • the interaction between the AF network element and the SMF network element needs to be performed through network elements such as NEF network element or proxy (Proxy). The following description will not be repeated.
  • the SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or that the authorization fails.
  • the communication method provided by the embodiment of the present application may further include the following step S1114:
  • the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
  • step S914 For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
  • the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
  • the communication method provided by the embodiment of the present application may further include the following step S1015:
  • the SMF network element sends indication information 1 to the first terminal device.
  • the first terminal device receives the indication information 1 from the SMF network element.
  • the indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the SMF network element if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
  • the above steps S1110-S1115 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1116-S1118.
  • the AF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the conditions for the AF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
  • the validity period of the authorization for the first terminal device to use the first MBS service ends
  • the authorization information of the first MBS service is changed.
  • the AF network element sends a revocation request message to the SMF network element.
  • the SMF network element receives the revocation request message from the AF network element.
  • the revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
  • step S1117 For the description of step S1117, reference may be made to step S917 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S917 is replaced with the AF network element in step S1117, which will not be repeated here.
  • the SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • step S1118 is the same as step S918 in the embodiment shown in FIG. 9 .
  • step S918 is the same as step S918 in the embodiment shown in FIG. 9 .
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1116-S1118, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1110-S1115 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1116-S1118 are independent of each other. Yes, they can be decoupled from each other.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1110-S1115 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service;
  • the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1116-S1118 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
  • the actions of the AF network element or the SMF network element in the above steps S1101 to S1118 can be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the AF network element or the SMF network element. Meta execution, this embodiment does not impose any restrictions on this.
  • the first control plane network element is an AF network element (where the AF can be AF in FIG. 2 to FIG. 5 )
  • the second control plane network element is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 )
  • the communication method provided by the embodiment of the present application may be as shown in FIG. 12 , including the following steps:
  • S1201-S1202 are the same as steps S901-S902 in the embodiment shown in FIG. 9 .
  • steps S901-S902 in the embodiment shown in FIG. 9 .
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1203-S1209:
  • the first terminal device sends an N1 message to the AMF network element.
  • the AMF network element receives the N1 message from the first terminal device.
  • the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service.
  • step S1203 is the same as step S903 in the embodiment shown in FIG. 9 .
  • step S1203 is the same as step S903 in the embodiment shown in FIG. 9 .
  • the AMF network element sends an authorization request (authorization request) to the UDM/UDR network element.
  • the UDM/UDR network element receives the authorization request from the SMF network element.
  • the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
  • the UDM/UDR network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • the authorization result includes authorization success or authorization failure.
  • the UDM/UDR network element sends an authorization response (authorization response) to the AMF network element.
  • the AMF network element receives the authorization response from the UDM/UDR network element.
  • the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
  • the AMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
  • steps S1204-S1207 For the description of steps S1204-S1207, reference may be made to steps S910-S913 in the embodiment shown in FIG. 9 , the difference is, for example, that the SMF network elements in steps S910-S913 are replaced with AMF network elements in steps S1204-S1207, It is not repeated here.
  • the communication method provided by the embodiment of the present application may further include the following step S1208:
  • the AMF network element sends message 2 to the SMF network element.
  • the SMF network element receives the message 2 from the AMF network element.
  • the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
  • the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
  • the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 .
  • the MB-SMF is described in a unified manner here, and will not be repeated below.
  • the communication method provided by the embodiment of the present application may further include the following step S1209:
  • the AMF network element sends indication information 2 to the first terminal device.
  • the first terminal device receives the indication information 2 from the AMF network element.
  • the indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the AMF network element if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
  • the above steps S1203-S1209 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided in this embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1210-S1211.
  • the AMF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the conditions for the AMF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
  • the validity period of the authorization for the first terminal device to use the first MBS service ends; or,
  • the authorization information for the first MBS service changes; or,
  • the AMF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service; or,
  • the AMF network element receives a notification message from the MBS-C/PCF/AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first MBS Authorization of Services.
  • the AMF network element may also send a subscription message to the UDM/UDR network element, where the subscription message includes the identifier of the first MBS service. , which is used to request subscription to the first MBS service authorization change event.
  • the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions.
  • the AMF network element may also send a subscription to the MBS-C/PCF/AF/NEF network element.
  • the subscription message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
  • the MBS-C/PCF may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request subscription to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application.
  • the AF network element belongs to a third party
  • the relationship between the AF network element and the UDM/UDR network element, or the AF network element and the MBS-C/PCF network element, or the AF network element and the The AMF network elements need to interact through network elements such as NEF network elements or proxies, which are described in a unified manner here, and will not be repeated below.
  • the AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • initiating to revoke the authorization of the first terminal device to use the first MBS service may be understood as initiating a session for releasing the first MBS service of the first terminal device, or initiating deletion (or deactivation) of the first terminal device's session.
  • the context of the PDU session related to the first MBS service is uniformly described here, and will not be repeated below.
  • the AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service, including at least one of the following:
  • the AMF network element sends a request message to the SMF network element, where the request message is used to request to release the PDU session of the first MBS service of the first terminal device, or,
  • the AMF network element sends a request message to the SMF network element, where the request message is used to request deletion or deactivation of the first MBS service context of the first terminal device; or,
  • the AMF network element deletes the first MBS service context of the local first terminal device; or,
  • the AMF network element sends an N2 message to the NG-RAN device.
  • the N2 message is used to request the NG-RAN device to release the bearer corresponding to the first MBS service, or to request the NG-RAN device to delete or deactivate the corresponding bearer of the first MBS service.
  • the context of the PDU session is used to request the NG-RAN device to release the bearer corresponding to the first MBS service, or to request the NG-RAN device to delete or deactivate the corresponding bearer of the first MBS service.
  • the AMF network element before the AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service, it is necessary to determine the first terminal device according to the received identifier of the first MBS service and the identifier of the first terminal device.
  • the PDU session corresponding to the first MBS service of a terminal device, or the identifier of the PDU session, or the identifier of the context of the PDU session, and the above message carries the PDU session corresponding to the first MBS service of the first terminal device, or The identifier of the PDU session, or the identifier of the context of the PDU session.
  • the above message also includes the identifier of the first terminal device, which is not specifically limited in this embodiment of the present application.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1210-S1211, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1203-S1209 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1210-S1211 are independent of each other. Yes, they can be decoupled from each other.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1203-S1209 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service;
  • the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1210-S1211 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
  • the actions of the UDM/UDR network element or the AMF network element in the above steps S1201 to S1211 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
  • the embodiment of the present application further provides a communication method, as shown in FIG. 13 , It includes the following steps:
  • S1301-S1309 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • steps S901-S909 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1310-S1316:
  • the SMF network element determines, according to the received identifier of the first MBS service, whether to store the subscription data of the first MBS service locally.
  • step S1314 If the SMF network element determines that the subscription data of the first MBS service is not stored locally, after performing steps S1311-S1313, continue to perform the following step S1314;
  • step S1314 is executed after skipping steps S1311-S1313.
  • the SMF network element sends a request message 1 to the UDM/UDR network element.
  • the UDM/UDR network element receives the request message 1 from the SMF network element.
  • the request message 1 includes the identifier of the first MBS service, and is used to request subscription data related to the first MBS service.
  • the request message 1 in this embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the indication information 3 may be the received S-NSSAI and/or DNN.
  • the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
  • the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
  • the UDM/UDR network element sends a response message 1 to the SMF network element.
  • the SMF network element receives the response message 1 from the UDM/UDR network element.
  • the response message 1 includes the subscription data of the first MBS service. If the UDM/UDR network element cannot find the subscription data of the first MBS service, the response message 1 may include indication information 4, which is used to indicate that the acquisition of the subscription data of the first MBS service fails.
  • the subscription data of the first MBS service includes authorization information of the first MBS service, and the authorization information of the first MBS service is used to indicate whether the first terminal device is allowed to use the first MBS service.
  • the subscription data of the first MBS service includes an authorization validity period for the first terminal device to use the first MBS service.
  • the SMF network element may determine, according to the indication information 4, that authorizing the first terminal device to use the first MBS service fails. If the response message 1 includes the subscription data of the first MBS service, further, the communication method provided by the embodiment of the present application further includes the following step S1314.
  • the SMF network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
  • the SMF network element determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed.
  • the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the SMF network It is determined that the authorization of the first terminal device to use the first MBS service is successful.
  • the communication method provided by the embodiment of the present application may further include the following step S1315:
  • the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
  • step S914 For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
  • the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
  • the communication method provided by the embodiment of the present application may further include the following step S1316:
  • the SMF network element sends indication information 1 to the first terminal device.
  • the first terminal device receives the indication information 1 from the SMF network element.
  • the indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the SMF network element may also release the session of the first MBS service of the first terminal device, or delete (or deactivate) the context of the PDU session related to the first MBS service of the first terminal device, which is not done in this embodiment of the present application Specific restrictions.
  • the above steps S1310-S1316 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1317-S1318.
  • the SMF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the conditions for the SMF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
  • the validity period of the authorization for the first terminal device to use the first MBS service ends; or,
  • the authorization information for the first MBS service changes; or,
  • the SMF network element receives a notification message from the MBS-C/PCF/AF/NEF network element, the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first terminal device.
  • Authorization for MBS Services or,
  • the SMF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service.
  • the SMF network element may also send a subscription message to the UDM/UDR network element, where the subscription message includes the identifier of the first MBS service. , which is used to request subscription to the first MBS service authorization change event.
  • the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions.
  • the SMF network element may also send a subscription to the MBS-C/PCF/AF/NEF network element.
  • the subscription message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
  • the MBS-C/PCF may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request subscription to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application.
  • the AF network element belongs to a third party
  • the relationship between the AF network element and the UDM/UDR network element, or the AF network element and the MBS-C/PCF network element, or the AF network element and the The interaction between SMF network elements needs to be performed through network elements such as NEF network elements or a proxy (Proxy), which is uniformly described here, and will not be repeated below.
  • the SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
  • step S1318 is the same as step S918 in the embodiment shown in FIG. 9 .
  • step S1318 is the same as step S918 in the embodiment shown in FIG. 9 .
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1317-S1318, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1310-S1316 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1317-S1318 are independent of each other. Yes, they can be decoupled from each other.
  • the authorization process for the first terminal device to use the first MBS service provided by steps S1310-S1316 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service;
  • the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1317-S1318 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
  • the actions of the UDM/UDR network element or the SMF network element in the above steps S1301 to S1318 may be called by the processor 801 in the communication device 800 shown in FIG. 8 to the application code stored in the memory 803 to instruct the UDM/UDR network element.
  • element or SMF network element does not impose any limitation on this.
  • the embodiment of the present application also provides a communication method, as shown in FIG. 14 , It includes the following steps:
  • S1401-S1409 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • steps S901-S909 are the same as steps S901-S909 in the embodiment shown in FIG. 9 .
  • the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1410-S1416:
  • the SMF network element sends a request message 2 to the UDM/UDR network element.
  • the UDM/UDR network element receives the request message 2 from the SMF network element.
  • the request message 2 includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request subscription data related to the first MBS service.
  • the request message 2 in the embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the indication information 3 may be the received S-NSSAI and/or DNN.
  • the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the SMF network element may first determine whether to store the subscription data of the first MBS service locally according to the received identifier of the first MBS service. In the case that the SMF network element determines that the subscription data of the first MBS service is not stored locally, step S1410 is performed again, which is not specifically limited in this embodiment of the present application.
  • the UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
  • the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
  • step S1412 if the UDM/UDR network element can find the subscription data of the first MBS service, the following step S1412 is continued and then step S1413 is performed; otherwise, the UDM/UDR network element determines the first terminal device If the authorization result of using the first MBS service is that the authorization fails, step S1413 is executed after step S1412 is skipped.
  • the UDM/UDR determines an authorization result for the first terminal device to use the first MBS service according to the subscription data of the first MBS service.
  • the authorization result includes authorization success or authorization failure.
  • the UDM/UDR determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed When the device uses the first MBS service, the UDM/UDR determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the UDM/UDR The UDR network element determines that the authorization of the first terminal device to use the first MBS service is successful.
  • the UDM/UDR network element sends a response message 2 to the SMF network element.
  • the SMF network element receives the response message 2 from the UDM/UDR network element.
  • the response message 2 includes an authorization result of using the first MBS service by the first terminal device, and the authorization result includes authorization success or authorization failure.
  • the response message 2 includes the first MBS service.
  • a subscription data for the MBS service is possible.
  • the SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or that the authorization fails.
  • the communication method provided by the embodiment of the present application may further include the following step S1415:
  • step S1415 The SMF network element establishes or updates the session of the first MBS service of the first terminal device.
  • step S1415 is the same as step S914 in the embodiment shown in FIG. 9 , and the related description may refer to the embodiment shown in FIG. 9 , which will not be repeated here.
  • the communication method provided by the embodiment of the present application may further include the following step S1416:
  • step S1416 The SMF network element sends indication information 1 to the first terminal device.
  • the first terminal device receives the indication information 1 from the SMF network element.
  • the indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • step S1416 is the same as step S915 in the embodiment shown in FIG. 9 , and the related description may refer to the embodiment shown in FIG. 9 , which will not be repeated here.
  • the above steps S910-S915 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the actions of the UDM/UDR network element or the SMF network element in the above steps S1401 to S1416 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or SMF network element, and this embodiment does not impose any limitation on this.
  • the embodiment of the present application further provides a communication method, as shown in FIG. 15 , It includes the following steps:
  • S1501-S1502 are the same as steps S901-S902 in the embodiment shown in FIG. 9 .
  • steps S901-S902 are the same as steps S901-S902 in the embodiment shown in FIG. 9 .
  • the communication method provided by this embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1503-S1510:
  • the first terminal device sends an N1 message to the AMF network element.
  • the AMF network element receives the N1 message from the first terminal device.
  • the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service.
  • step S1503 is the same as step S903 in the embodiment shown in FIG. 9 , for details, reference may be made to the embodiment shown in FIG. 9 , and details are not repeated here.
  • the AMF network element sends a request message 3 to the UDM/UDR network element.
  • the UDM/UDR network element receives the request message 3 from the AMF network element.
  • the request message 3 includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request subscription data related to the first MBS service.
  • the request message 3 in the embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the indication information 3 may be the received S-NSSAI and/or DNN.
  • the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
  • the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
  • step S1506 if the UDM/UDR network element can find the subscription data of the first MBS service, the following step S1506 is continued and then step S1507 is performed; otherwise, the UDM/UDR network element determines the first terminal device If the authorization result of using the first MBS service is that the authorization fails, step S1507 is executed after step S1506 is skipped.
  • the UDM/UDR determines an authorization result for the first terminal device to use the first MBS service according to the subscription data of the first MBS service.
  • the authorization result includes authorization success or authorization failure.
  • step S1506 is the same as step S1412 in the embodiment shown in FIG. 14 .
  • step S1506 is the same as step S1412 in the embodiment shown in FIG. 14 .
  • FIG. 9 For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
  • the UDM/UDR network element sends a response message 3 to the AMF network element.
  • the AMF network element receives the response message 3 from the UDM/UDR network element.
  • the response message 3 includes the identifier of the first terminal device and the authorization result of the first terminal device using the first MBS service, and the authorization result includes authorization success or authorization failure.
  • the response message 3 includes the first MBS service.
  • a subscription data for the MBS service is possible.
  • the AMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
  • the communication method provided by the embodiment of the present application may further include the following step S1509:
  • the AMF network element sends message 2 to the SMF network element.
  • the SMF network element receives the message 2 from the AMF network element.
  • the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
  • the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
  • the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 .
  • the MB-SMF is described in a unified manner here, and will not be repeated below.
  • the communication method provided by the embodiment of the present application may further include the following step S1510:
  • the AMF network element sends indication information 2 to the first terminal device.
  • the first terminal device receives the indication information 2 from the AMF network element.
  • the indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the AMF network element if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
  • the above steps S1503-S1510 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided in the embodiment of the present application may further include revoking the authorization process for the first terminal device to use the first MBS service.
  • revoking the authorization process for the first terminal device to use the first MBS service please refer to: 9 to 13 any of the embodiments, the embodiment of the present application will not be repeated here.
  • other authorization processes for revoking the first terminal device to use the first MBS service may also be used to revoke the first terminal device to use the first MBS service. , which is not specifically limited in the embodiments of the present application.
  • the actions of the UDM/UDR network element or the AMF network element in the above steps S1501 to S1510 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
  • an embodiment of the present application further provides a communication method, as shown in FIG. 16 , It includes the following steps:
  • S1601-S1602 are the same as steps S901-S902 in the embodiment shown in FIG. 9 .
  • steps S901-S902 are the same as steps S901-S902 in the embodiment shown in FIG. 9 .
  • the communication method provided by this embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1603-S1610:
  • step S1603 The first terminal device sends an N1 message to the AMF network element.
  • the AMF network element receives the N1 message from the first terminal device.
  • the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service.
  • step S1603 is the same as step S903 in the embodiment shown in FIG. 9 .
  • FIG. 9 For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
  • the AMF network element determines, according to the received identifier of the first MBS service, whether to store the subscription data of the first MBS service locally.
  • step S1608 If the AMF network element determines that the subscription data of the first MBS service is not stored locally, after performing steps S1605-S1607, the following step S1608 is continued;
  • step S1608 is executed after skipping steps S1605-S1607.
  • the AMF network element sends a request message 4 to the UDM/UDR network element.
  • the UDM/UDR network element receives the request message 4 from the SMF network element.
  • the request message 4 includes the identifier of the first MBS service, and is used to request subscription data related to the first MBS service.
  • the request message 4 in this embodiment of the present application may further include indication information 5, where the indication information 5 is used to indicate that the requested subscription data is subscription data of the MBS service.
  • the indication information 5 may be the received S-NSSAI and/or DNN.
  • the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
  • the UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
  • the UDM/UDR network element may determine, according to the indication information 5, that the requested subscription data is subscription data of the MBS service.
  • the UDM/UDR network element sends a response message 4 to the AMF network element.
  • the AMF network element receives the response message 4 from the UDM/UDR network element.
  • the response message 4 includes the subscription data of the first MBS service. If the UDM/UDR network element cannot find the subscription data of the first MBS service, the response message 4 may include indication information 6, and the indication information 6 is used to indicate that the acquisition of the subscription data of the first MBS service fails.
  • the subscription data of the first MBS service includes authorization information of the first MBS service, and the authorization information of the first MBS service is used to indicate whether the first terminal device is allowed to use the first MBS service.
  • the subscription data of the first MBS service includes an authorization validity period for the first terminal device to use the first MBS service.
  • the AMF network element may determine, according to the indication information 6, that authorizing the first terminal device to use the first MBS service fails. If the response message 4 includes the subscription data of the first MBS service, further, the communication method provided by the embodiment of the present application further includes the following step S1608:
  • the AMF network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
  • the AMF network element determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed When the device uses the first MBS service, the AMF network element determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the AMF network It is determined that the authorization of the first terminal device to use the first MBS service is successful.
  • the communication method provided by the embodiment of the present application may further include the following step S1609:
  • the AMF network element sends message 2 to the SMF network element.
  • the SMF network element receives the message 2 from the AMF network element.
  • the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
  • the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
  • the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 .
  • the MB-SMF is described in a unified manner here, and will not be repeated below.
  • the communication method provided by the embodiment of the present application may further include the following step S1610:
  • the AMF network element sends indication information 2 to the first terminal device.
  • the first terminal device receives the indication information 2 from the AMF network element.
  • the indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the AMF network element if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
  • steps S1603-S1610 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
  • the communication method provided in the embodiment of the present application may further include revoking the authorization process for the first terminal device to use the first MBS service.
  • revoking the authorization process for the first terminal device to use the first MBS service please refer to: 9 to 13 any of the embodiments, the embodiment of the present application will not be repeated here.
  • other authorization processes for revoking the first terminal device to use the first MBS service may also be used to revoke the first terminal device to use the first MBS service. , which is not specifically limited in the embodiments of the present application.
  • the actions of the UDM/UDR network element or the AMF network element in the above steps S1601 to S1610 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
  • a communication method provided by an embodiment of the present application includes:
  • the second control plane network element sends a first message to the first control plane network element.
  • the first control plane network element receives the first message from the second control plane network element.
  • the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service.
  • the first control plane network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, where the authorization result includes authorization success or authorization failure.
  • the first control plane network element sends the identifier of the first MBS service and the authorization result to the second control plane network element.
  • the second control plane network element receives the identification and authorization result of the first MBS service from the first control plane network element.
  • the network element of the second control plane determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first MBS service of the first terminal device is successful or that the authorization fails.
  • the first control plane network element in the embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 9 or FIG. 14
  • the second control plane network element may be, for example,
  • the first message may be, for example, the authorization request in step S910 in the embodiment shown in FIG. 9 or the request message 2 in step S1410 in the embodiment shown in FIG. 14 . .
  • the first control plane network element in this embodiment of the present application may be, for example, the MBS-C/PCF network element in the embodiment shown in FIG. 10
  • the second control plane network element may be, for example,
  • the first message may be, for example, the authorization request in step S1010 of the embodiment shown in FIG. 10 .
  • the first control plane network element in this embodiment of the present application may be, for example, the AF network element in the embodiment shown in FIG. 11
  • the second control plane network element may be, for example, the one shown in FIG. 11
  • the first message may be, for example, the authorization request in step S1110 of the embodiment shown in FIG. 11 .
  • the first control plane network element in this embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 12
  • the second control plane network element may be, for example, FIG. 12
  • the first message may be, for example, the authorization request in step S1204 of the embodiment shown in FIG. 12 .
  • FIG. 17 The specific implementation of the embodiment shown in FIG. 17 may refer to the embodiment shown in FIG. 9 , FIG. 10 , FIG. 11 , FIG. 12 or FIG. 14 , which is not repeated here.
  • This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
  • the actions of the first control plane network element or the second control plane network element in the above steps S1701 to S1704 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the The first control plane network element or the second control plane network element executes this, which is not limited in this embodiment.
  • another communication method provided by this embodiment of the present application includes:
  • the first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service.
  • the first control plane network element sends a first message to the session management network element.
  • the session management network element receives the first message from the first control plane network element.
  • the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the session management network element releases the session of the first MBS service of the first terminal device.
  • the first control plane network element in this embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 9
  • the first message may be, for example, the implementation shown in FIG. 9 .
  • An example is the revocation request request in step S917.
  • the first control plane network element in this embodiment of the present application may be, for example, the MBS-C/PCF network element in the embodiment shown in FIG. 10
  • the first message may be, for example, the one shown in FIG. 10 .
  • the revocation request request in step S1017 in step S1017.
  • the first control plane network element in this embodiment of the present application may be, for example, the AF network element in the embodiment shown in FIG. 11
  • the first message may be, for example, the embodiment shown in FIG. 11 .
  • the first control plane network element in the embodiment of the present application may be, for example, the AMF network element in the embodiment shown in FIG. 12
  • the first message may be, for example, the embodiment shown in FIG. 12 .
  • the AMF network element initiates a message exchanged with the SMF network element when the authorization procedure for revoking the first terminal device to use the first MBS service is initiated.
  • the existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while.
  • the communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device.
  • the actions of the first control plane network element or session management network element in the above steps S1801 to S1803 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the first The control plane network element or the session management network element executes this, which is not limited in this embodiment.
  • another communication method provided by this embodiment of the present application includes:
  • the first control plane network element sends a first message to the second control plane network element.
  • the second control plane network element receives the first message from the first control plane network element.
  • the first message includes the identifier of the first MBS service, and is used for requesting to acquire subscription data of the first MBS service.
  • the second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
  • the second control plane network element sends subscription data of the first MBS service to the first control plane network element, where the subscription data includes information on authorization of the first MBS service.
  • the first control plane network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
  • the first control plane network element in this embodiment of the present application may be, for example, the SMF network element in the embodiment shown in FIG. 13
  • the second control plane network element may be, for example, the one shown in FIG. 13
  • the first message may be, for example, the request message 1 in step S1311 of the embodiment shown in FIG. 13 .
  • the first control plane network element in this embodiment of the present application may be, for example, the AMF network element in the embodiment shown in FIG. 16
  • the second control plane network element may be, for example, the one shown in FIG. 13
  • the first message may be, for example, the request message 4 in step S1605 of the embodiment shown in FIG. 16 .
  • the actions of the first control plane network element or the second control plane network element in the above steps S1901 to S1904 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the The first control plane network element or the second control plane network element executes this, which is not limited in this embodiment.
  • the methods and/or steps implemented by the first control plane network element may also be implemented by components (such as chips or circuits) that can be used for the first control plane network element. ) implementation; the methods and/or steps implemented by the second control plane network element can also be implemented by components (such as chips or circuits) that can be used for the second control plane network element; the methods and/or steps implemented by the session management network element The steps may also be implemented by components (eg, chips or circuits) that can be used for session management network elements.
  • an embodiment of the present application further provides a communication device, where the communication device may be the first control plane network element in the foregoing method embodiments, or a device including the foregoing first control plane network element, or may be used for the first control plane network element.
  • the communication device may be the second control plane network element in the above method embodiments, or a device including the second control plane network element, or a component that can be used for the second control plane network element
  • the communication device may be the session management network element in the above method embodiment, or a device including the above session management network element, or a component that can be used for the session management network element.
  • the communication apparatus includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • FIG. 20 shows a schematic structural diagram of a communication apparatus 200 .
  • the communication device 200 includes a transceiver module 2001 and a processing module 2002 .
  • the transceiver module 2001 may also be called a transceiver unit to implement a transceiver function, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 2001 is configured to receive a first message from a second control plane network element, where the first message includes an identifier of the first MBS service and an identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service .
  • the processing module 2002 is configured to determine, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service, where the authorization result includes authorization success or authorization failure.
  • the transceiver module 2001 is further configured to send the identifier of the first MBS service and the authorization result to the second control plane network element.
  • the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to send the authorization validity period for the first terminal device to use the first MBS service to the second control plane network element.
  • the processing module 2002 is configured to determine the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, including: using the transceiver module 2001 to send the second message to the third control plane network element, the first The second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; receiving the identifier of the first MBS service from the third control plane network element through the transceiver module 2001 and authorization results.
  • the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the network element of the third control plane.
  • the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service.
  • the transceiver module 2001 is further configured to send a third message to the session management network element, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first MBS service of the first terminal device session.
  • the processing module 2002 configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: determining that the validity period of the authorization of the first terminal device to use the first MBS service ends.
  • the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the network element of the fourth control plane.
  • the processing module 2002 configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: determining that the authorization information of the first MBS service has changed.
  • the transceiver module 2001 is further configured to receive authorization information of the first MBS service from the network element of the fourth control plane.
  • the processing module 2002 configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: using the transceiver module 2001 to receive a fourth message from the network element of the fourth control plane, where the fourth message includes the first An identifier of the MBS service and the identifier of the first terminal device are used to notify the revocation of the authorization of the first terminal device to use the first MBS service.
  • the transceiver module 2001 is further configured to send a fifth message to the fourth control plane network element before the processing module 2002 determines to revoke the authorization of the first terminal device to use the first MBS service, where the fifth message includes the first MBS service The identifier used to request subscription to the first MBS service authorization change event.
  • the processing module 2002 is configured to determine to revoke the authorization of the first terminal device to use the first MBS service.
  • the transceiver module 2001 is configured to send a first message to a session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the transceiver module 2001 is configured to send a first message to a first control plane network element, where the first message includes an identifier of the first MBS service and an identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service.
  • the transceiver module 2001 is further configured to receive the identifier of the first MBS service from the first control plane network element and the authorization result of the first terminal device using the first MBS service, where the authorization result includes authorization success or authorization failure.
  • the processing module 2002 is configured to determine whether the authorization of the first MBS service of the first terminal device succeeds or the authorization fails according to the authorization result and the identifier of the first MBS service.
  • the authorization result is authorization failure; the transceiver module 2001 is further configured to send first indication information to the first terminal device, where the first indication information is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  • the authorization result is that the authorization is successful; the processing module 2002 is further configured to establish or update the session of the first MBS service of the first terminal device; or the transceiver module 2001 is further configured to send a sixth message to the session management network element , the sixth message is used to request to establish or update the session of the first MBS service.
  • the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the first control plane network element.
  • the processing module 2002 is further configured to release the session of the first MBS service of the first terminal device after the validity period of the authorization for the first terminal device to use the first MBS service expires.
  • the second control plane network element is a session management network element; the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service; the processing module 2002 is further configured to release the first terminal The device's first MBS service session.
  • the second control plane network element is a mobility management network element; the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service; the transceiver module 2001 is further configured to report to the session management network element A seventh message is sent, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
  • the communication apparatus 200 is presented in the form of dividing each functional module in an integrated manner.
  • Module herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above.
  • the communication apparatus 200 may take the form of the communication device 800 shown in FIG. 8 .
  • the processor 801 in the communication device 800 shown in FIG. 8 may execute the instructions by calling the computer stored in the memory 803, so that the communication device 800 executes the communication method in the above method embodiment.
  • the functions/implementation process of the transceiver module 2001 and the processing module 2002 in FIG. 20 can be implemented by the processor 801 in the communication device 800 shown in FIG. 8 calling the computer execution instructions stored in the memory 803 .
  • the function/implementation process of the processing module 2002 in FIG. 20 can be implemented by the processor 801 in the communication device 800 shown in FIG. 8 calling the computer execution instructions stored in the memory 803, and the function of the transceiver module 2001 in FIG.
  • the implementation process can be implemented through the communication interface 804 in the communication device 800 shown in FIG. 8 .
  • the communication apparatus 200 provided in this embodiment can execute the above communication method, the technical effects that can be obtained by the communication apparatus 200 can refer to the above method embodiments, which will not be repeated here.
  • one or more of the above modules or units may be implemented by software, hardware or a combination of both.
  • the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow.
  • the processor can be built into a SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip.
  • SoC system on chip
  • ASIC application specific integrated circuit
  • the internal processing of the processor may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (Programmable Logic Device) , or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate array
  • PLD Programmable Logic Device
  • the hardware can be CPU, microprocessor, digital signal processing (DSP) chip, microcontroller unit (MCU), artificial intelligence processor, ASIC, Any or any combination of SoCs, FPGAs, PLDs, dedicated digital circuits, hardware accelerators, or non-integrated discrete devices that may or may not run the necessary software to perform the above method flows.
  • DSP digital signal processing
  • MCU microcontroller unit
  • ASIC any or any combination of SoCs, FPGAs, PLDs, dedicated digital circuits, hardware accelerators, or non-integrated discrete devices that may or may not run the necessary software to perform the above method flows.
  • an embodiment of the present application further provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), where the communication apparatus includes a processor for implementing the method in any of the foregoing method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication apparatus to execute the method in any of the above method embodiments.
  • the memory may also not be in the communication device.
  • the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the medium.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.

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Abstract

Embodiments of the present application provide a communication method, apparatus, and system, capable of implementing multicast-broadcast service (MBS) service authorization for a terminal device under a 5G MBS architecture. The method comprises: a first control plane network element receiving a first message from a second control plane network element, wherein the first message comprises an identifier of a first MBS service and an identifier of a first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; the first control plane network element determining, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service, wherein the authorization result comprises authorization success or authorization failure; and the first control plane network element sending the identifier of the first MBS service and the authorization result to the second control plane network element, such that the second control plane network element determines, according to the identifier of the first MBS service and the authorization result, whether the authorization for the first terminal device to use the first MBS service has succeeded or failed. The embodiments of the present application are applicable to the field of MBS.

Description

通信方法、装置及***Communication method, device and system
本申请要求于2020年08月07日提交国家知识产权局、申请号为202010790979.2、申请名称为“通信方法、装置及***”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number 202010790979.2 and the application name "Communication Method, Device and System" filed with the State Intellectual Property Office on August 7, 2020, the entire contents of which are incorporated into this application by reference .
技术领域technical field
本申请涉及通信技术领域，尤其涉及通信方法、装置及***。The present application relates to the field of communication technologies, and in particular, to a communication method, device, and system.
背景技术Background technique
多播-广播服务(multicast-broadcast service，MBS)服务是一种将数据从一个数据源发送给多个接收者的服务。其中，MBS服务包括MBS组播服务和MBS广播服务。MBS组播服务，是指将数据从一个数据源发送给一组用户。MBS广播服务，是指将数据从一个数据源发送给MBS广播服务的服务域内所有的用户。A multicast-broadcast service (MBS) service is a service that sends data from one data source to multiple recipients. The MBS service includes MBS multicast service and MBS broadcast service. MBS multicast service refers to sending data from a data source to a group of users. The MBS broadcast service refers to sending data from a data source to all users in the service domain of the MBS broadcast service.
第三代合作伙伴计划标准(3rd generation partnership project，3GPP)标准中定义了第三代(3rd-generation，3G)/***(fourth-generation，4G)多媒体多播广播服务(multimedia broadcast/multicast service，MBMS)架构，以及基于3G/4G MBMS架构的流程，其中定义了：当终端设备希望使用一个MBS服务时，网络侧通过用户面对终端设备进行MBS服务授权的流程。The 3rd generation partnership project (3GPP) standard defines the third generation (3rd-generation, 3G)/fourth-generation (4G) multimedia multicast broadcast service (multimedia broadcast/multicast) service, MBMS) architecture, and the process based on the 3G/4G MBMS architecture, which defines: when the terminal device wants to use an MBS service, the network side performs the MBS service authorization process for the terminal device through the user.
随着技术的演进，3GPP研究项目中提出了第五代(fourth-generation，5G)MBS架构，相比3G/4G MBMS架构，5G MBS架构中引入了新的网元和新的MBS服务建立流程。3G/4G MBS架构下对终端设备进行MBS服务授权的机制无法迁移到5G MBS架构下。因此在5G MBS架构下，如何实现终端设备的MBS服务授权，是目前亟待解决的问题。With the evolution of technology, the fifth-generation (5G) MBS architecture is proposed in the 3GPP research project. Compared with the 3G/4G MBMS architecture, the 5G MBS architecture introduces new network elements and new MBS service establishment procedures. . The mechanism of MBS service authorization for terminal devices under the 3G/4G MBS architecture cannot be migrated to the 5G MBS architecture. Therefore, under the 5G MBS architecture, how to realize the MBS service authorization of terminal equipment is an urgent problem to be solved at present.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供通信方法、装置及***，用于实现5G MBS架构下终端设备的MBS服务授权。Embodiments of the present application provide a communication method, apparatus, and system for implementing MBS service authorization of terminal equipment under the 5G MBS architecture.
为达到上述目的，本申请的实施例采用如下技术方案：To achieve the above object, the embodiments of the present application adopt the following technical solutions:
第一方面，提供了一种通信方法，其特征在于，该方法包括：第一控制面网元接收来自第二控制面网元的第一消息，该第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权该第一终端设备使用第一MBS服务；第一控制面网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，该授权结果包括授权成功或授权失败；第一控制面网元向第二控制面网元发送第一MBS服务的标识和授权结果。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。A first aspect provides a communication method, characterized in that the method includes: a first control plane network element receiving a first message from a second control plane network element, where the first message includes a first multicast broadcast service MBS The identifier of the service and the identifier of the first terminal device are used to request authorization for the first terminal device to use the first MBS service; the first control plane network element determines the first terminal device according to the identifier of the first MBS service and the identifier of the first terminal device. The terminal device uses the authorization result of the first MBS service, where the authorization result includes authorization success or authorization failure; the first control plane network element sends the identification of the first MBS service and the authorization result to the second control plane network element. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
在一种可能的实现方式中，第一终端设备使用第一MBS服务的授权结果为授权成功；本申请实施例提供的通信方法还包括：第一控制面网元向第二控制面网元发送第一终端设备使用第一MBS服务的授权有效期。这样，在第一终端设备使用第一MBS 服务的授权有效期结束后，第二控制面网元可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，从而可以避免第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the authorization result obtained by the first terminal device using the first MBS service is that the authorization is successful; the communication method provided in this embodiment of the present application further includes: the first control plane network element sends the second control plane network element to the second control plane network element. The validity period of the authorization for the first terminal device to use the first MBS service. In this way, after the validity period of the authorization for the first terminal device to use the first MBS service expires, the second control plane network element can release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first terminal device The context of the PDU session related to the first MBS service can avoid the problem that the first MBS service is always used by the first terminal device.
在一种可能的实现方式中，第一控制面网元根据第一MBS服务的标识和第一终端设备的标识，确定授权结果，包括：第一控制面网元向第三控制面网元发送第二消息，第二消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务；第一控制面网元接收来自第三控制面网元的第一MBS服务的标识和授权结果。也就是说，本申请实施例中，第一控制面网元可以从其他控制面网元获取第一终端设备使用第一MBS服务的授权结果。In a possible implementation manner, the first control plane network element determines the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, including: the first control plane network element sends the third control plane network element to the third control plane network element. the second message, where the second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; the first control plane network element receives information from the third control plane network element The identification and authorization result of the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may obtain the authorization result of the first terminal device using the first MBS service from other control plane network elements.
在一种可能的实现方式中，授权结果为授权成功；本申请实施例提供的通信方法还包括：In a possible implementation manner, the authorization result is authorization success; the communication method provided by the embodiment of the present application further includes:
第一控制面网元接收来自第三控制面网元的第一终端设备使用第一MBS服务的授权有效期。也就是说，本申请实施例中，第一控制面网元可以从其他控制面网元获取第一终端设备使用第一MBS服务的授权有效期。The first control plane network element receives, from the third control plane network element, the authorization validity period for the first terminal device to use the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may obtain the authorization validity period for the first terminal device to use the first MBS service from other control plane network elements.
在一种可能的实现方式中，本申请实施例提供的通信方法还包括：第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权；第一控制面网元向会话管理网元发送第三消息，第三消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service; the first control plane network element reports to the session management network The element sends a third message, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
第二方面，提供了一种通信方法，该通信方法包括：第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权；第一控制面网元向会话管理网元发送第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。In a second aspect, a communication method is provided, the communication method includes: a first control plane network element determines to revoke authorization of a first terminal device to use a first MBS service; the first control plane network element sends a first control plane network element to a session management network element. message, the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device, or to delete (or deactivate) the first terminal device of the first terminal device. The context of an MBS service-related PDU session. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
结合上述第一方面或第二方面，在一种可能的实现方式中，第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权，包括：第一控制面网元确定第一终端设备使用第一MBS服务的授权有效期结束。也就是说，本申请实施例中，第一控制面网元可以在第一终端设备使用第一MBS服务的授权有效期结束后撤销第一终端设备使用第一MBS服务的授权。With reference to the first aspect or the second aspect, in a possible implementation manner, the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element determining the first The validity period of the authorization for the terminal device to use the first MBS service ends. That is, in this embodiment of the present application, the first control plane network element may revoke the authorization of the first terminal device to use the first MBS service after the validity period of the authorization for the first terminal device to use the first MBS service expires.
结合上述第一方面或第二方面，在一种可能的实现方式中，本申请实施例提供的通信方法还包括：第一控制面网元接收来自第四控制面网元的第一终端设备使用第一MBS服务的授权有效期。With reference to the first aspect or the second aspect, in a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the first control plane network element receives the first terminal device from the fourth control plane network element to use The authorization validity period of the first MBS service.
结合上述第一方面或第二方面，在一种可能的实现方式中，第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权，包括：第一控制面网元确定第一MBS服务的授权信息发生变化。也就是说，本申请实施例中，第一控制面网元可以在第一MBS服务的授权信息发生变化后(比如新的授权信息用于指示不允许第一终端设备使用第一MBS服务的授权)撤销第一终端设备使用第一MBS服务的授权。With reference to the first aspect or the second aspect, in a possible implementation manner, the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element determining the first The authorization information for the MBS service has changed. That is to say, in this embodiment of the present application, the first control plane network element may change the authorization information of the first MBS service (for example, the new authorization information is used to indicate that the first terminal device is not allowed to use the authorization of the first MBS service). ) revokes the authorization of the first terminal device to use the first MBS service.
结合上述第一方面或第二方面，在一种可能的实现方式中，本申请实施例提供的通信方法还包括：第一控制面网元接收来自第四控制面网元的第一MBS服务的授权信息。With reference to the above first aspect or the second aspect, in a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the first control plane network element receives the first MBS service from the fourth control plane network element authorization information.
结合上述第一方面或第二方面，在一种可能的实现方式中，第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权，包括：第一控制面网元接收来自第四控制面网元的第四消息，第四消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。也就是说，本申请实施例中，第一控制面网元可以基于其他网元的撤销指示撤销第一终端设备使用第一MBS服务的授权。With reference to the above-mentioned first aspect or second aspect, in a possible implementation manner, the first control plane network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the first control plane network element receiving information from the first control plane network element Fourth message of the network element of the control plane, where the fourth message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may revoke the authorization of the first terminal device to use the first MBS service based on the revocation instruction of other network elements.
结合上述第一方面或第二方面，在一种可能的实现方式中，在第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权之前，本申请实施例提供的通信方法还包括：第一控制面网元向第四控制面网元发送第五消息，第五消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。也就是说，本申请实施例中，第一控制面网元可以基于订阅获知第一MBS服务授权变更事件，第一MBS服务授权变更事件例如可以包括以下至少一项：第一终端设备使用第一MBS服务的授权有效期发生变更、第一MBS服务的授权信息发生变化或者撤销第一终端设备使用第一MBS服务的授权的事件。With reference to the first aspect or the second aspect, in a possible implementation manner, before the first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service, the communication method provided by the embodiment of the present application further The method includes: the first control plane network element sends a fifth message to the fourth control plane network element, where the fifth message includes the identifier of the first MBS service, and is used for requesting to subscribe to the authorization change event of the first MBS service. That is to say, in this embodiment of the present application, the first control plane network element may learn the first MBS service authorization change event based on the subscription, and the first MBS service authorization change event may include, for example, at least one of the following: the first terminal device uses the first An event in which the authorization validity period of the MBS service is changed, the authorization information of the first MBS service is changed, or the authorization of the first terminal device to use the first MBS service is revoked.
结合上述第一方面或第二方面，在一种可能的实现方式中，本申请实施例中第一控制面网元包括统一数据存储网元、统一数据管理网元、MBS控制面网元、策略控制功能网元、网络开放功能网元或者应用功能网元；第二控制面网元包括会话管理网元或者移动性管理网元。With reference to the first aspect or the second aspect, in a possible implementation manner, the first control plane network element in this embodiment of the present application includes a unified data storage network element, a unified data management network element, an MBS control plane network element, a policy A control function network element, a network opening function network element or an application function network element; the second control plane network element includes a session management network element or a mobility management network element.
第三方面，提供了一种通信方法，该通信方法包括：第二控制面网元向第一控制面网元发送第一消息，该第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务；第二控制面网元接收来自第一控制面网元的第一MBS服务的标识以及第一终端设备使用第一MBS服务的授权结果，该授权结果包括授权成功或授权失败；第二控制面网元根据该授权结果以及第一MBS服务的标识，确定第一终端设备的第一MBS服务授权成功或授权失败。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。In a third aspect, a communication method is provided, the communication method comprising: a second control plane network element sending a first message to a first control plane network element, where the first message includes an identifier of the first multicast broadcast service MBS service and The identifier of the first terminal device is used to request authorization for the first terminal device to use the first MBS service; the second control plane network element receives the identifier of the first MBS service from the first control plane network element and the first terminal device uses the first MBS service. The authorization result of the MBS service, the authorization result includes authorization success or authorization failure; the second control plane network element determines the authorization success or authorization failure of the first MBS service of the first terminal device according to the authorization result and the identifier of the first MBS service. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
在一种可能的实现方式中，该授权结果为授权失败；本申请实施例提供的通信方法还包括：第二控制面网元向第一终端设备发送第一指示信息，第一指示信息用于指示授权第一终端设备使用第一MBS服务失败。基于该方案，第一终端设备可以获知第一终端设备使用第一MBS服务的授权失败。In a possible implementation manner, the authorization result is authorization failure; the communication method provided by the embodiment of the present application further includes: the second control plane network element sends first indication information to the first terminal device, and the first indication information is used for Indicates that authorizing the first terminal device to use the first MBS service fails. Based on this solution, the first terminal device can learn that the authorization of the first terminal device to use the first MBS service fails.
在一种可能的实现方式，该授权结果为授权成功；本申请实施例提供的通信方法 还包括：第二控制面网元建立或更新第一终端设备的第一MBS服务的会话；或者，第二控制面网元向会话管理网元发送第六消息，第六消息用于请求建立或更新第一MBS服务的会话。也就是说，本申请实施例中，若第一终端设备使用第一MBS服务的授权结果为授权成功，则可以继续后续的第一MBS服务的会话的建立或更新。In a possible implementation manner, the authorization result is authorization success; the communication method provided by the embodiment of the present application further includes: the second control plane network element establishes or updates the session of the first MBS service of the first terminal device; or, the first The second control plane network element sends a sixth message to the session management network element, where the sixth message is used to request to establish or update the session of the first MBS service. That is to say, in the embodiment of the present application, if the authorization result of the first terminal device using the first MBS service is that the authorization is successful, the subsequent establishment or update of the session of the first MBS service can be continued.
在一种可能的实现方式中，该授权结果为授权成功；本申请实施例提供的通信方法还包括：第二控制面网元接收来自第一控制面网元的第一终端设备使用第一MBS服务的授权有效期；在第一终端设备使用第一MBS服务的授权有效期结束后，第二控制面网元可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，从而可以避免第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the authorization result is authorization success; the communication method provided by the embodiment of the present application further includes: the second control plane network element receives the first terminal device from the first control plane network element using the first MBS The authorization validity period of the service; after the authorization validity period for the first terminal device to use the first MBS service expires, the second control plane network element may release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first MBS service session of the first terminal device. The context of the PDU session related to the first MBS service of a terminal device, so that the problem that the first MBS service is always used by the first terminal device can be avoided.
在一种可能的实现方式中，第二控制面网元为会话管理网元；本申请实施例提供的通信方法还包括：第二控制面网元确定撤销第一终端设备使用所述第一MBS服务的授权；第二控制面网元释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the second control plane network element is a session management network element; the communication method provided by the embodiment of the present application further includes: the second control plane network element determines to cancel the use of the first MBS by the first terminal device Service authorization; the second control plane network element releases the session of the first MBS service of the first terminal device, or deletes (or deactivates) the context of the PDU session related to the first MBS service of the first terminal device. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
在一种可能的实现方式中，第二控制面网元为移动性管理网元；本申请实施例提供的通信方法还包括：第二控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权；第二控制面网元向会话管理网元发送第七消息，该第七消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the second control plane network element is a mobility management network element; the communication method provided by the embodiment of the present application further includes: the second control plane network element determines to cancel the use of the first terminal device by the first terminal device. Authorization of the first MBS service; the second control plane network element sends a seventh message to the session management network element, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release The session of the first MBS service of the first terminal device, or delete (or deactivate) the context of the PDU session related to the first MBS service of the first terminal device. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
第四方面，提供了一种通信方法，该通信方法包括：会话管理网元确定撤销第一终端设备使用第一多播广播服务MBS服务的授权；会话管理网元释放所述第一终端设备的所述第一MBS服务的会话。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。In a fourth aspect, a communication method is provided, the communication method comprising: the session management network element determines to revoke the authorization of the first terminal device to use the MBS service of the first multicast broadcast service; the session management network element releases the authorization of the first terminal device the session of the first MBS service. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
在一种可能的实现方式中，会话管理网元确定撤销第一终端设备使用第一MBS服务的授权，包括：会话管理网元确定第一终端设备使用第一MBS服务的授权有效期结束。也就是说，本申请实施例中，会话管理网元可以在第一终端设备使用第一MBS服务的授权有效期结束后撤销第一终端设备使用第一MBS服务的授权。In a possible implementation manner, the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element determining that the validity period of the authorization for the first terminal device to use the first MBS service ends. That is, in this embodiment of the present application, the session management network element may revoke the authorization of the first terminal device to use the first MBS service after the validity period of the authorization for the first terminal device to use the first MBS service expires.
在一种可能的实现方式中，本申请实施例提供的通信方法还包括：会话管理网元接收来自第四控制面网元的第一终端设备使用第一MBS服务的授权有效期。In a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the session management network element receives the authorization validity period of the first terminal device using the first MBS service from the fourth control plane network element.
在一种可能的实现方式中，会话管理网元确定撤销第一终端设备使用第一MBS服务的授权，包括：会话管理网元确定第一MBS服务的授权信息发生变化。也就是说，本申请实施例中，会话管理网元可以在第一MBS服务的授权信息发生变化后(比如新的授权信息用于指示不允许第一终端设备使用第一MBS服务的授权)撤销第一终端设备使用第一MBS服务的授权。In a possible implementation manner, the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element determining that the authorization information of the first MBS service has changed. That is to say, in this embodiment of the present application, the session management network element may be revoked after the authorization information of the first MBS service is changed (for example, the new authorization information is used to indicate the authorization that the first terminal device is not allowed to use the first MBS service). Authorization of the first terminal device to use the first MBS service.
在一种可能的实现方式中，本申请实施例提供的通信方法还包括：会话管理网元元接收来自第四控制面网元的第一MBS服务的授权信息。In a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the session management network element receives authorization information of the first MBS service from the fourth control plane network element.
在一种可能的实现方式中，会话管理网元确定撤销第一终端设备使用第一MBS服务的授权，包括：会话管理网元接收来自第四控制面网元的第四消息，第四消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。也就是说，本申请实施例中，会话管理网元可以基于其他网元的撤销指示撤销第一终端设备使用第一MBS服务的授权。In a possible implementation manner, the session management network element determining to revoke the authorization of the first terminal device to use the first MBS service includes: the session management network element receives a fourth message from the fourth control plane network element, where the fourth message includes The identifier of the first MBS service and the identifier of the first terminal device are used to notify the revocation of the authorization of the first terminal device to use the first MBS service. That is, in this embodiment of the present application, the session management network element may revoke the authorization of the first terminal device to use the first MBS service based on the revocation instruction of other network elements.
在一种可能的实现方式中，在会话管理网元确定撤销第一终端设备使用第一MBS服务的授权之前，本申请实施例提供的通信方法还包括：会话管理网元向第四控制面网元发送第五消息，第五消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。也就是说，本申请实施例中，会话管理网元可以基于订阅获知第一MBS服务授权变更事件，第一MBS服务授权变更事件例如可以包括以下至少一项：第一终端设备使用第一MBS服务的授权有效期发生变更、第一MBS服务的授权信息发生变化或者撤销第一终端设备使用第一MBS服务的授权的事件。In a possible implementation manner, before the session management network element determines to revoke the authorization of the first terminal device to use the first MBS service, the communication method provided in this embodiment of the present application further includes: the session management network element sends a request to the fourth control plane network The element sends a fifth message, where the fifth message includes the identifier of the first MBS service, and is used for requesting subscription to the authorization change event of the first MBS service. That is to say, in this embodiment of the present application, the session management network element may learn the first MBS service authorization change event based on the subscription, and the first MBS service authorization change event may include, for example, at least one of the following: the first terminal device uses the first MBS service The authorization validity period of the first MBS service is changed, the authorization information of the first MBS service is changed, or the authorization of the first terminal device to use the first MBS service is revoked.
第五方面，提供了一种通信方法，该通信方法包括：第一控制面网元获取第一MBS服务的签约数据；第一控制面网元根据该签约数据，确定是否授权第一终端设备使用第一MBS服务。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。In a fifth aspect, a communication method is provided. The communication method includes: a first control plane network element acquiring subscription data of a first MBS service; and a first control plane network element determining whether to authorize the first terminal device to use the subscription data according to the subscription data The first MBS service. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
在一种可能的实现方式中，第一MBS服务的签约数据包括第一MBS服务的授权信息；第一控制面网元根据该签约数据，确定是否授权第一终端设备使用第一MBS服务，包括：当第一MBS服务授权的信息指示不允许授权第一终端设备使用第一MBS服务时，第一控制面网元确定授权第一终端设备使用所述第一MBS服务失败。基于该方案，第一控制面网元可以获知是否授权第一终端设备使用第一MBS服务。In a possible implementation manner, the subscription data of the first MBS service includes authorization information of the first MBS service; according to the subscription data, the first control plane network element determines whether to authorize the first terminal device to use the first MBS service, including : When the information of the first MBS service authorization indicates that authorization of the first terminal device to use the first MBS service is not allowed, the first control plane network element determines that the authorization of the first terminal device to use the first MBS service fails. Based on this solution, the first control plane network element can learn whether to authorize the first terminal device to use the first MBS service.
在一种可能的实现方式中，本申请实施例提供的通信方法还包括：第一控制面网元向第一终端设备发送第一指示信息，第一指示信息用于指示授权第一终端设备使用第一MBS服务失败。基于该方案，第一终端设备可以获知第一终端设备使用第一MBS服务的授权失败。In a possible implementation manner, the communication method provided by the embodiment of the present application further includes: the first control plane network element sends first indication information to the first terminal device, where the first indication information is used to indicate that the first terminal device is authorized to use the The first MBS service failed. Based on this solution, the first terminal device can learn that the authorization of the first terminal device to use the first MBS service fails.
在一种可能的实现方式中，第一MBS服务的签约数据包括第一MBS服务的授权信息；第一控制面网元根据该签约数据，确定是否授权第一终端设备使用第一MBS服务，包括：当第一MBS服务授权的信息指示允许授权第一终端设备使用第一MBS服务时，第一控制面网元确定授权第一终端设备使用第一MBS服务。In a possible implementation manner, the subscription data of the first MBS service includes authorization information of the first MBS service; according to the subscription data, the first control plane network element determines whether to authorize the first terminal device to use the first MBS service, including : When the information of the first MBS service authorization indicates that the first terminal device is authorized to use the first MBS service, the first control plane network element determines that the first terminal device is authorized to use the first MBS service.
在一种可能的实现方式中，第一控制面网元获取第一MBS服务的签约数据，包括：第一控制面网元接收来自所述第二控制面网元的第二消息，第二消息包括第一MBS服务的标识和第一终端设备的标识，用于请求获取第一MBS服务的签约数据；第一控制面网元根据第一MBS服务的标识，确定第一MBS服务的签约数据；本申请实施例提供的通信方法还包括：In a possible implementation manner, acquiring the subscription data of the first MBS service by the first control plane network element includes: the first control plane network element receiving a second message from the second control plane network element, the second message It includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to obtain the subscription data of the first MBS service; the first control plane network element determines the subscription data of the first MBS service according to the identifier of the first MBS service; The communication method provided by the embodiment of the present application further includes:
第一控制面网元向第二控制面网元发送第一MBS服务的签约数据。也就是说，本申请实施例中，第一控制面网元可以基于其他网元的请求消息来获取第一MBS服务的签约数据。The first control plane network element sends subscription data of the first MBS service to the second control plane network element. That is to say, in this embodiment of the present application, the first control plane network element may acquire subscription data of the first MBS service based on request messages of other network elements.
在一种可能的实现方式中，第一控制面网元获取第一MBS服务的签约数据，包括：第一控制面网元向第二控制面网元发送第一消息，第一消息包括第一MBS服务的标识，用于请求获取第一MBS服务的签约数据；第一控制面网元接收来自第二控制面网元的签约数据。也就是说，本申请实施例中，第一控制面网元可以从其他网元获取第一MBS服务的签约数据。In a possible implementation manner, acquiring the subscription data of the first MBS service by the first control plane network element includes: the first control plane network element sends a first message to the second control plane network element, where the first message includes the first The identifier of the MBS service is used to request to obtain subscription data of the first MBS service; the first control plane network element receives the subscription data from the second control plane network element. That is, in this embodiment of the present application, the first control plane network element may acquire subscription data of the first MBS service from other network elements.
在一种可能的实现方式中，第一消息还包括第二指示信息，第二指示信息用于指示请求的签约数据为MBS服务的签约数据。这样第二控制面网元根据第二指示信息可以获知请求的签约数据为MBS服务的签约数据。In a possible implementation manner, the first message further includes second indication information, where the second indication information is used to indicate that the requested subscription data is subscription data of the MBS service. In this way, the network element of the second control plane can learn, according to the second indication information, that the requested subscription data is the subscription data of the MBS service.
在一种可能的实现方式中，第一MBS服务的签约数据还包括第一MBS服务授权的有效期。这样，在第一终端设备使用第一MBS服务的授权有效期结束后，第一控制面网元或第二控制面网元可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，从而可以避免第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the subscription data of the first MBS service further includes the validity period of the authorization of the first MBS service. In this way, after the validity period of the authorization for the first terminal device to use the first MBS service expires, the first control plane network element or the second control plane network element can release the session of the first MBS service of the first terminal device, or, delete (or Deactivate) the context of the PDU session related to the first MBS service of the first terminal device, so that the problem that the first MBS service is always used by the first terminal device can be avoided.
第六方面，提供了一种通信方法，该通信方法包括：第二控制面网元接收来自第一控制面网元的第一消息，该第一消息包括第一MBS服务的标识，用于请求获取第一MBS服务的签约数据；第二控制面网元根据第一MBS服务的标识，查找第一MBS服务的签约数据；第二控制面网元向第一控制面网元发送第一MBS服务的签约数据，该签约数据中包括第一MBS服务授权的信息。这样，第一控制面网元根据该签约数据，可以确定是否授权第一终端设备使用第一MBS服务。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。In a sixth aspect, a communication method is provided, the communication method comprising: a second control plane network element receiving a first message from a first control plane network element, where the first message includes an identifier of the first MBS service for requesting Obtain the subscription data of the first MBS service; the second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service; the second control plane network element sends the first MBS service to the first control plane network element The subscription data includes the first MBS service authorization information. In this way, the first control plane network element can determine whether to authorize the first terminal device to use the first MBS service according to the subscription data. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
在一种可能的实现方式中，该签约数据还包括第一MBS服务授权的有效期。这样，在第一终端设备使用第一MBS服务的授权有效期结束后，第一控制面网元可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，从而可以避免第一MBS服务被第一终端设备一直使用的问题。In a possible implementation manner, the subscription data further includes the validity period of the first MBS service authorization. In this way, after the validity period of the authorization for the first terminal device to use the first MBS service expires, the first control plane network element can release the session of the first MBS service of the first terminal device, or delete (or deactivate) the first terminal device The context of the PDU session related to the first MBS service can avoid the problem that the first MBS service is always used by the first terminal device.
第七方面，提供了一种通信方法，该通信方法包括：第二控制面网元接收来自第一控制面网元的第一消息，该第一消息包括第一MBS服务的标识，用于请求获取第一MBS服务的签约数据；第二控制面网元根据第一MBS服务的标识，查找第一MBS服务的签约数据；第二控制面网元向第一控制面网元发送第三指示信息，第三指示信息用于指示第一MBS服务的签约数据获取失败。这样，第一控制面网元根据第三指示信 息，可以确定授权第一终端设备使用第一MBS服务失败。In a seventh aspect, a communication method is provided, the communication method comprising: a second control plane network element receiving a first message from a first control plane network element, where the first message includes an identifier of the first MBS service for requesting Obtain the subscription data of the first MBS service; the second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service; the second control plane network element sends third indication information to the first control plane network element , and the third indication information is used to indicate that the acquisition of subscription data for the first MBS service fails. In this way, the network element of the first control plane may determine, according to the third indication information, that authorizing the first terminal device to use the first MBS service fails.
结合上述第六方面或第七方面，在一种可能的实现方式中，第一消息还包括第二指示信息，所述第二指示信息用于指示请求的签约数据为MBS服务的签约数据。这样第二控制面网元根据第二指示信息可以获知请求的签约数据为MBS服务的签约数据。With reference to the sixth aspect or the seventh aspect, in a possible implementation manner, the first message further includes second indication information, where the second indication information is used to indicate that the requested subscription data is subscription data of the MBS service. In this way, the network element of the second control plane can learn, according to the second indication information, that the requested subscription data is the subscription data of the MBS service.
第八方面，提供了一种通信装置用于实现上述方法。该通信装置可以为上述第一方面或第二方面或第五方面中的第一控制面网元，或者包含上述第一控制面网元的装置；或者，该通信装置可以为上述第三方面或第六方面或第七方面中的第二控制面网元，或者包含上述第二控制面网元的装装置；或者，该通信装置可以为上述第四方面中的会话管理网元，或者包含上述会话管理网元的装置。该通信装置包括实现上述方法相应的模块、单元、或手段(means)，该模块、单元、或means可以通过硬件实现，软件实现，或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块或单元。In an eighth aspect, a communication device is provided for implementing the above method. The communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements. The communication device includes corresponding modules, units, or means (means) for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.
第九方面，提供了一种通信装置，包括：处理器和存储器；该存储器用于存储计算机指令，当该处理器执行该指令时，以使该通信装置执行上述任一方面所述的方法。该通信装置可以为上述第一方面或第二方面或第五方面中的第一控制面网元，或者包含上述第一控制面网元的装置；或者，该通信装置可以为上述第三方面或第六方面或第七方面中的第二控制面网元，或者包含上述第二控制面网元的装装置；或者，该通信装置可以为上述第四方面中的会话管理网元，或者包含上述会话管理网元的装置。In a ninth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used for storing computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the above aspects. The communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements.
第十方面，提供了一种通信装置，包括：处理器；该处理器用于与存储器耦合，并读取存储器中的指令之后，根据该指令执行如上述任一方面所述的方法。该通信装置可以为上述第一方面或第二方面或第五方面中的第一控制面网元，或者包含上述第一控制面网元的装置；或者，该通信装置可以为上述第三方面或第六方面或第七方面中的第二控制面网元，或者包含上述第二控制面网元的装装置；或者，该通信装置可以为上述第四方面中的会话管理网元，或者包含上述会话管理网元的装置。According to a tenth aspect, a communication device is provided, comprising: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the method according to any one of the preceding aspects according to the instruction. The communication device may be the first control plane network element in the first aspect or the second aspect or the fifth aspect, or a device including the first control plane network element; or, the communication device may be the third aspect or The second control plane network element in the sixth aspect or the seventh aspect, or a device including the second control plane network element; or, the communication device may be the session management network element in the fourth aspect, or include the above An apparatus for session management network elements.
第十一方面，提供了一种通信装置，包括：处理器接口电路；接口电路，用于接收计算机程序或指令并传输至处理器；处理器用于执行所述计算机程序或指令，以使该通信装置执执行如上述任一方面所述的方法。In an eleventh aspect, a communication device is provided, comprising: a processor interface circuit; an interface circuit for receiving a computer program or instruction and transmitting it to a processor; the processor for executing the computer program or instruction to enable the communication The apparatus performs a method as described in any of the above aspects.
第十二方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述任一方面所述的方法。A twelfth aspect provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when executed on a computer, the computer can perform the method described in any of the above aspects.
第十三方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述任一方面所述的方法。A thirteenth aspect provides a computer program product comprising instructions which, when run on a computer, enable the computer to perform the method of any of the preceding aspects.
第十四方面，提供了一种通信装置(例如，该通信装置可以是芯片或芯片***)，该通信装置包括处理器，用于实现上述任一方面中所涉及的功能。在一种可能的实现方式中，该通信装置还包括存储器，该存储器，用于保存必要的程序指令和数据。该通信装置是芯片***时，可以由芯片构成，也可以包含芯片和其他分立器件。A fourteenth aspect provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), the communication apparatus includes a processor for implementing the functions involved in any of the above aspects. In a possible implementation manner, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be constituted by a chip, or may include a chip and other discrete devices.
其中，第八方面至第十四方面中任一种可能的实现方式所带来的技术效果可参见上述第一方面中不同设计方式所带来的技术效果，此处不再赘述。Wherein, for the technical effect brought by any of the possible implementation manners of the eighth aspect to the fourteenth aspect, reference may be made to the technical effects brought about by different design manners in the above-mentioned first aspect, which will not be repeated here.
第十五方面，提供了一种通信***，该通信***包括第一控制面网元和第二控制面网元；第二控制面网元，用于向第一控制面网元发送第一消息，第一消息包括第一 MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务；第一控制面网元，用于接收来自第二控制面网元的第一消息，并根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，该授权结果包括授权成功或授权失败；第一控制面网元，还用于向第二控制面网元发送第一MBS服务的标识和授权结果；第二控制面网元，还用于接收来自第一控制面网元的第一MBS服务的标识和授权结果，并根据授权结果以及第一MBS服务的标识，确定第一终端设备的第一MBS服务授权成功或授权失败。其中，第十五方面的技术效果可参考上述第一方面或第三方面，在此不予赘述。A fifteenth aspect provides a communication system, the communication system includes a first control plane network element and a second control plane network element; the second control plane network element is configured to send a first message to the first control plane network element , the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; the first control plane network element is used to receive information from the second control plane network element and the first message of the first MBS service, and according to the identification of the first MBS service and the identification of the first terminal device, determine the authorization result of the first terminal device using the first MBS service, and the authorization result includes authorization success or authorization failure; the first control plane network The second control plane network element is also used to receive the identification and authorization of the first MBS service from the first control plane network element. As a result, and according to the authorization result and the identifier of the first MBS service, it is determined that the authorization of the first MBS service of the first terminal device succeeds or the authorization fails. For the technical effect of the fifteenth aspect, reference may be made to the above-mentioned first aspect or the third aspect, which will not be repeated here.
第十六方面，提供了一种通信***，该通信***包括第一控制面网元和会话管理网元；第一控制面网元，用于确定撤销第一终端设备使用第一MBS服务的授权之后，向会话管理网元发送第一消息，该第一消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。会话管理网元，用于接收来自第一控制面网元的第一消息，并释放第一终端设备的第一MBS服务的会话。其中，第十六方面的技术效果可参考上述第二方面或第四方面，在此不予赘述。A sixteenth aspect provides a communication system, the communication system includes a first control plane network element and a session management network element; the first control plane network element is configured to determine to revoke the authorization of the first terminal device to use the first MBS service Afterwards, a first message is sent to the session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device. The session management network element is configured to receive the first message from the first control plane network element and release the session of the first MBS service of the first terminal device. For the technical effect of the sixteenth aspect, reference may be made to the second aspect or the fourth aspect, which will not be repeated here.
第十七方面，提供了一种通信***，该通信***包括第一控制面网元和第二控制面网元；第一控制面网元，用于向第二控制面网元发送第一消息，该第一消息包括第一MBS服务的标识，用于请求获取第一MBS服务的签约数据；第二控制面网元，用于接收来自第一控制面网元的第一消息，并根据第一MBS服务的标识，查找第一MBS服务的签约数据；第二控制面网元，还用于向第一控制面网元发送第一MBS服务的签约数据，该签约数据中包括第一MBS服务授权的信息；第一控制面网元，还用于根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务。其中，第十七方面的技术效果可参考上述第五方面或第六方面，在此不予赘述。A seventeenth aspect provides a communication system, the communication system includes a first control plane network element and a second control plane network element; the first control plane network element is configured to send a first message to the second control plane network element , the first message includes the identifier of the first MBS service, which is used to request the acquisition of subscription data of the first MBS service; the second control plane network element is used to receive the first message from the first control plane network element, and according to the first control plane network element An identifier of the MBS service, to search for the subscription data of the first MBS service; the second control plane network element is further configured to send the subscription data of the first MBS service to the first control plane network element, where the subscription data includes the first MBS service Authorization information; the first control plane network element is further configured to determine whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service. For the technical effect of the seventeenth aspect, reference may be made to the fifth aspect or the sixth aspect, which will not be repeated here.
附图说明Description of drawings
图1为3GPP标准中定义的3G/4G MBMS架构示意图；Figure 1 is a schematic diagram of the 3G/4G MBMS architecture defined in the 3GPP standard;
图2为5G MBS基线架构1的一种可能的架构示意图；Figure 2 is a schematic diagram of a possible architecture of the 5G MBS baseline architecture 1;
图3为5G MBS基线架构1的另一种可能的架构示意图；Figure 3 is a schematic diagram of another possible architecture of the 5G MBS baseline architecture 1;
图4为5G MBS基线架构2的一种可能的架构示意图；Figure 4 is a schematic diagram of a possible architecture of the 5G MBS baseline architecture 2;
图5为5G MBS基线架构2的另一种可能的架构示意图；Figure 5 is a schematic diagram of another possible architecture of the 5G MBS baseline architecture 2;
图6为本申请实施例提供的通信***的架构示意图一；FIG. 6 is a schematic diagram 1 of the architecture of a communication system provided by an embodiment of the present application;
图7为本申请实施例提供的通信***的架构示意图二；FIG. 7 is a second schematic diagram of the architecture of a communication system provided by an embodiment of the present application;
图8为本申请实施例提供的通信设备的结构示意图；FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application;
图9为本申请实施例提供的通信方法的交互流程示意图一；FIG. 9 is a schematic diagram 1 of an interaction flow of a communication method provided by an embodiment of the present application;
图10为本申请实施例提供的通信方法的交互流程示意图一；FIG. 10 is a schematic diagram 1 of an interaction flow of a communication method provided by an embodiment of the present application;
图11为本申请实施例提供的通信方法的交互流程示意图二；FIG. 11 is a second schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application;
图12为本申请实施例提供的通信方法的交互流程示意图三；FIG. 12 is a schematic diagram 3 of an interaction flow of the communication method provided by the embodiment of the present application;
图13为本申请实施例提供的通信方法的交互流程示意图四；FIG. 13 is a fourth schematic diagram of an interaction flow of the communication method provided by the embodiment of the present application;
图14为本申请实施例提供的通信方法的交互流程示意图五；FIG. 14 is a schematic diagram five of the interaction flow of the communication method provided by the embodiment of the present application;
图15为本申请实施例提供的通信方法的交互流程示意图六；FIG. 15 is a sixth schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application;
图16为本申请实施例提供的通信方法的交互流程示意图七；16 is a seventh schematic diagram of an interaction flow of a communication method provided by an embodiment of the present application;
图17为本申请实施例提供的通信方法的交互流程示意图八；FIG. 17 is a schematic diagram eight of the interaction flow of the communication method provided by the embodiment of the present application;
图18为本申请实施例提供的通信方法的交互流程示意图九；FIG. 18 is a schematic diagram 9 of an interaction flow of a communication method provided by an embodiment of the present application;
图19为本申请实施例提供的通信方法的交互流程示意图十；FIG. 19 is a schematic diagram ten of an interaction flow of a communication method provided by an embodiment of the present application;
图20为本申请实施例提供的通信装置的结构示意图。FIG. 20 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
具体实施方式detailed description
为了方便理解本申请实施例的技术方案，首先给出本申请相关技术的简要介绍如下。In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction of the related technologies of the present application is first given as follows.
第一，3G/4G MBMS架构：First, 3G/4G MBMS architecture:
3GPP标准中定义了3G/4G MBMS架构。如图1所示，该3G/4G MBMS架构中包括终端设备、3G/4G无线接入网设备、用户面网元、控制面网元、多播广播服务中心(broadcast-multicast service centre，BM-SC)以及应用功能(application function，AF)。其中，BM-SC用于授权MBMS承载服务。当终端设备希望使用一个MBS服务时，网络侧通过用户面对终端设备进行MBS服务授权。具体的，终端设备通过3G/4G无线接入网设备向用户面网元发送请求消息，该请求消息用于请求获取某个MBS服务的数据。用户面网元接收到该请求消息之后，向BM-SC发送授权请求，该授权请求用于请求授权终端设备获取该第一MBS服务的数据。进一步的，BM-SC确定是否授权终端设备使用第一MBS服务后，向用户面网元返回授权结果，授权结果包括授权成功或授权失败。当授权结果为成功时，则用户面网元创建或激活用于传输第一MBS数据的承载。The 3G/4G MBMS architecture is defined in the 3GPP standard. As shown in Figure 1, the 3G/4G MBMS architecture includes terminal equipment, 3G/4G wireless access network equipment, user plane network elements, control plane network elements, and a broadcast-multicast service center (broadcast-multicast service center, BM- SC) and application function (AF). Among them, the BM-SC is used to authorize the MBMS bearer service. When the terminal device wishes to use an MBS service, the network side performs MBS service authorization on the terminal device through the user. Specifically, the terminal device sends a request message to the user plane network element through the 3G/4G wireless access network device, where the request message is used to request to obtain data of a certain MBS service. After receiving the request message, the user plane network element sends an authorization request to the BM-SC, where the authorization request is used to request the authorization terminal device to obtain the data of the first MBS service. Further, after determining whether to authorize the terminal device to use the first MBS service, the BM-SC returns an authorization result to the user plane network element, where the authorization result includes authorization success or authorization failure. When the authorization result is successful, the user plane network element creates or activates the bearer for transmitting the first MBS data.
第二，5G MBS架构：Second, 5G MBS architecture:
3GPP研究项目报告中基于3GPP定义的5G通信架构(下述称之为现有5G架构)，提出5G MBS架构，包括：5G MBS基线架构1和5G MBS基线架构2。In the 3GPP research project report, based on the 5G communication architecture defined by 3GPP (hereinafter referred to as the existing 5G architecture), the 5G MBS architecture is proposed, including: 5G MBS baseline architecture 1 and 5G MBS baseline architecture 2.
5G MBS基线架构1基于现有5G架构，并对现有5G架构中的某些网络功能(Network Function，NF)进行功能增强。如图2所示，5G MBS基线架构1中包括：AF、网络开放功能(network exposure function，NEF)/策略控制功能(policy control function，PCF)、会话管理功能(session management function，SMF)、用户面功能(user plane function，UPF)、接入与移动性管理功能(access and mobility management function，AMF)、统一数据存储(unified data repository，UDR)网元/统一数据管理(unified data management，UDM)网元、下一代无线接入网络(next generation-radio access network，NG-RAN)设备以及用户设备(user equipment，UE)。The 5G MBS baseline architecture 1 is based on the existing 5G architecture and enhances certain network functions (NFs) in the existing 5G architecture. As shown in Figure 2, the 5G MBS baseline architecture 1 includes: AF, network exposure function (NEF)/policy control function (PCF), session management function (SMF), user User plane function (UPF), access and mobility management function (AMF), unified data repository (UDR) network element/unified data management (UDM) Network elements, next generation-radio access network (NG-RAN) equipment, and user equipment (UE).
其中，5G MBS基线架构1中的AF为多播和/或广播的数据来源，调用5G***提供的MBS服务，通过5G***向多个UE发送多播和/或组播数据。Among them, the AF in the 5G MBS baseline architecture 1 is the source of multicast and/or broadcast data, calling the MBS service provided by the 5G system, and sending multicast and/or multicast data to multiple UEs through the 5G system.
5G MBS基线架构1中的NEF基于现有5G架构中的NEF，并对现有5G架构中的NEF进行功能增强，包括：5G MBS开放；与AF协商5G MBS，协商的内容包括服务质量(quality of service，QoS)、5G MBS服务域等。The NEF in the 5G MBS baseline architecture 1 is based on the NEF in the existing 5G architecture, and enhances the functions of the NEF in the existing 5G architecture, including: 5G MBS opening; of service, QoS), 5G MBS service domain, etc.
5G MBS基线架构1中的PCF基于现有5G架构中的PCF，并对现有5G架构中的PCF进行功能增强，包括：支持5G MBS；提供MBS会话相关策略消息给SMF；直接地、或间接地(如通过NEF)从AF处接收MBS服务信息等。The PCF in the 5G MBS baseline architecture 1 is based on the PCF in the existing 5G architecture, and enhances the functions of the PCF in the existing 5G architecture, including: supporting 5G MBS; providing MBS session-related policy messages to SMF; directly or indirectly Receive MBS service information and the like from the AF locally (eg, through the NEF).
5G MBS基线架构1中的SMF基于现有5G架构中的SMF，并对现有5G架构中 的SMF功能进行增强，包括：基于从PCF处接收的MBS策略控制MBS传输；在UPF上配置MBS流以及点到点或者点到多点传输；在NG-RAN设备上配置MBS流和QoS信息；在UE上配置MBS流的会话管理等。The SMF in the 5G MBS baseline architecture 1 is based on the SMF in the existing 5G architecture, and the SMF functions in the existing 5G architecture are enhanced, including: controlling MBS transmission based on the MBS policy received from the PCF; configuring MBS flow on the UPF And point-to-point or point-to-multipoint transmission; configure MBS flow and QoS information on NG-RAN equipment; configure session management of MBS flow on UE, etc.
5G MBS基线架构1中的UPF基于现有5G架构中的UPF，并对现有5G架构中的UPF进行功能增强，包括：支持对MBS流的包过滤；通过点对点、或点对多点的方式向NG-RAN设备传输MBS流；从SMF处接收MBS配置；检查互联网群组管理协议(internet group management protocol，IGMP)包，并向SMF通知IGMP包；接收AF的单播或者多播流等。The UPF in the 5G MBS baseline architecture 1 is based on the UPF in the existing 5G architecture, and the UPF in the existing 5G architecture is functionally enhanced, including: support for packet filtering of MBS streams; point-to-point or point-to-multipoint methods Transmit MBS stream to NG-RAN equipment; receive MBS configuration from SMF; check Internet group management protocol (IGMP) packet and notify SMF of IGMP packet; receive AF unicast or multicast stream, etc.
5G MBS基线架构1中的NG-RAN设备基于现有5G架构中的NG-RAN设备，并对现有5G架构中的NG-RAN设备进行功能增强，包括：接收UPF发送MBS流，在多播和单播中切换传输MBS流等。The NG-RAN equipment in the 5G MBS Baseline Architecture 1 is based on the NG-RAN equipment in the existing 5G architecture, and the functions of the NG-RAN equipment in the existing 5G architecture are enhanced, including: receiving UPF to send MBS streams, and unicast switching to transmit MBS streams, etc.
5G MBS基线架构1中的UE基于现有5G架构中的UE，并对现有5G架构中UE进行功能增强，包括：支持MBS策略配置；支持MBS流的会话管理；支持使用MBS流；接入层的MBS支持等。The UE in the 5G MBS baseline architecture 1 is based on the UE in the existing 5G architecture, and enhances the functions of the UE in the existing 5G architecture, including: support for MBS policy configuration; support for session management of MBS streams; support for the use of MBS streams; access Layers of MBS support, etc.
5G MBS基线架构1中的AMF用于管理UE的接入和移动，具体地包括：UE注册、UE移动管理、NAS连接、接入认证和授权、为UE和SMF提供传输等功能。The AMF in the 5G MBS Baseline Architecture 1 is used to manage the access and mobility of the UE, specifically including: UE registration, UE mobility management, NAS connection, access authentication and authorization, and providing transmission for UE and SMF.
5G MBS基线架构1中的UDM用于处理用户设备标识，接入鉴权，注册以及移动性管理等。The UDM in the 5G MBS Baseline Architecture 1 is used to handle user equipment identification, access authentication, registration, and mobility management.
5G MBS基线架构1中的UDR用于存储数据，包括签约数据、策略数据、应用数据等。The UDR in the 5G MBS Baseline Architecture 1 is used to store data, including subscription data, policy data, and application data.
在图2所示的5G MBS基线架构1的基础上，3GPP研究项目报告中还提出基于该5G MBS基线架构1的服务模式架构，即在该5G MBS基线架构1基础上增加多播服务功能(multicast service function，MSF)的5G MBS基线架构1，如图3所示。其中，MSF包括MSF控制面功能(MSF control plane，MSF-C)和MSF用户面功能(MSF user plane，MSF-U)。MSF-C用于传输和处理AF与5G核心网之间的MBS相关信令，如组播服务配置、MBS承载激活等；MSF-U用于用户面数据传输、用户面数据编码等。On the basis of the 5G MBS baseline architecture 1 shown in Figure 2, the 3GPP research project report also proposes a service mode architecture based on the 5G MBS baseline architecture 1, that is, adding a multicast service function on the basis of the 5G MBS baseline architecture 1 ( The 5G MBS baseline architecture 1 of the multicast service function, MSF) is shown in Figure 3. The MSF includes an MSF control plane function (MSF control plane, MSF-C) and an MSF user plane function (MSF user plane, MSF-U). MSF-C is used to transmit and process MBS-related signaling between AF and 5G core network, such as multicast service configuration, MBS bearer activation, etc.; MSF-U is used for user plane data transmission, user plane data encoding, etc.
5G MBS基线架构2在现有5G***架构上，引入新的NF，并对现有UE、NG-RAN设备等进行功能增强，以支持5G MBS。如图4所示，5G MBS基线架构2包括AF、NEF、PCF、UDM/UDR、AMF、多播广播会话管理功能(multicast/broadcast session management function，MB-SMF)和多播广播用户面功能(multicast/broadcast user plane function，MB-UPF)、NG-RAN设备以及UE。5G MBS Baseline Architecture 2 introduces a new NF on the existing 5G system architecture, and enhances the functions of existing UE and NG-RAN equipment to support 5G MBS. As shown in Figure 4, the 5G MBS baseline architecture 2 includes AF, NEF, PCF, UDM/UDR, AMF, multicast/broadcast session management function (MB-SMF) and multicast broadcast user plane function ( multicast/broadcast user plane function, MB-UPF), NG-RAN equipment, and UE.
其中，5G MBS基线架构2中的AF、UDM/UDR、AMF、NG-RAN设备或者UE的描述可参考5G MBS基线架构1，在此不再赘述。Among them, the description of AF, UDM/UDR, AMF, NG-RAN equipment or UE in 5G MBS baseline architecture 2 can refer to 5G MBS baseline architecture 1, which will not be repeated here.
5G MBS基线架构2中的PCF基于现有5G架构中的PCF，并对现有5G架构中的PCF进行功能增强，包括：支持MBS相关的策略和计费等。The PCF in the 5G MBS baseline architecture 2 is based on the PCF in the existing 5G architecture, and enhances the functions of the PCF in the existing 5G architecture, including: supporting MBS-related policies and charging.
5G MBS基线架构2中的MB-SMF与5G MBS基线架构2中的MB-UPF为新引入的NF。其中，5G MBS基线架构2中的MB-SMF用于MBS会话管理等。5G MBS基线架构2中的MB-UPF用于传输多播和广播数据。The MB-SMF in the 5G MBS baseline architecture 2 and the MB-UPF in the 5G MBS baseline architecture 2 are newly introduced NFs. Among them, the MB-SMF in the 5G MBS baseline architecture 2 is used for MBS session management and so on. MB-UPF in 5G MBS Baseline Architecture 2 is used to transmit multicast and broadcast data.
在图4所示的5G MBS基线架构2的基础上，3GPP研究项目报告中还提出基于 该5G MBS基线架构2的服务模式架构，即在该5G MBS基线架构2基础上增加多播和广播服务用户面功能(multicast/broadcast service user plane，MBSU)以及多播和广播服务功能(multicast/broadcast service function，MBSF)，如图5所示。其中，MBSF用于传输和处理AF与5G核心网之间的MBS相关信令MBS相关的信令。MBSU用于传输多播和广播数据等。MBSF可能是独立部署网络功能，也可能作为NEF的一部分部署，本申请实施例对此不做具体限定。On the basis of the 5G MBS baseline architecture 2 shown in Figure 4, the 3GPP research project report also proposes a service mode architecture based on the 5G MBS baseline architecture 2, that is, adding multicast and broadcast services on the basis of the 5G MBS baseline architecture 2 User plane function (multicast/broadcast service user plane, MBSU) and multicast and broadcast service function (multicast/broadcast service function, MBSF), as shown in Figure 5. Among them, the MBSF is used to transmit and process the MBS-related signaling between the AF and the 5G core network. MBSU is used to transmit multicast and broadcast data etc. The MBSF may be independently deployed with network functions, or may be deployed as a part of the NEF, which is not specifically limited in this embodiment of the present application.
目前，3GPP研究项目报告中提出，在图2至图5所示的5G MBS架构中，MBS相关的信令通过控制面传递。MBS服务的授权也属于信令，应在控制面传递。显然，3G/4G MBMS架构下对终端设备进行MBS服务授权的流程无法迁移到5G MBS架构下。At present, it is proposed in the 3GPP research project report that in the 5G MBS architecture shown in Figures 2 to 5, MBS-related signaling is transmitted through the control plane. The authorization of MBS service also belongs to signaling and should be transmitted on the control plane. Obviously, the process of authorizing MBS services for terminal devices under the 3G/4G MBMS architecture cannot be migrated to the 5G MBS architecture.
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A,B可以是单数或者复数。并且，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。同时，在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise specified, "/" indicates that the objects associated before and after are an "or" relationship, for example, A/B can indicate A or B; in this application, "and/or" "It is only an association relationship that describes an associated object, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A exists , B can be singular or plural. Also, in the description of the present application, unless stated otherwise, "plurality" means two or more than two. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple . In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like are not necessarily different. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner to facilitate understanding.
此外，本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。In addition, the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. With the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
如图6所示，为本申请实施例提供的一种通信***60，该通信***60包括第一控制面网元601和第二控制面网元602。第一控制面网元601和第二控制面网元602之间可以直接通信，也可以通过其他设备的转发进行通信，本申请实施例对此不做具体限定。As shown in FIG. 6 , a communication system 60 is provided in an embodiment of the present application. The communication system 60 includes a first control plane network element 601 and a second control plane network element 602 . The first control plane network element 601 and the second control plane network element 602 may communicate directly or communicate through forwarding by other devices, which is not specifically limited in this embodiment of the present application.
需要说明的是，本申请实施例中的控制面网元(包括上述第一控制面网元或第二控制面网元或本申请实施例中的其他控制面网元等)用于接收、发送或处理信令面的消息，在此统一说明，以下不再赘述。It should be noted that the control plane network elements in the embodiments of the present application (including the first control plane network element or the second control plane network element or other control plane network elements in the embodiments of the present application, etc.) are used for receiving and sending Or process the messages on the signaling plane, which are described here in a unified manner, and will not be repeated below.
其中，第二控制面网元602，用于向第一控制面网元601发送第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用 第一MBS服务。第一控制面网元601，用于接收第一消息之后，根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，并向第二控制面网元发送第一MBS服务的标识和授权结果，该授权结果包括授权成功或授权失败。第二控制面网元602，用于接收来自第一控制面网元的第一MBS服务的标识以及授权结果，并根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。其中，该方案的具体实现将在后续方法实施例中详细描述，在此不予赘述。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。The second control plane network element 602 is used to send a first message to the first control plane network element 601, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization of the first terminal The device uses the first MBS service. The first control plane network element 601 is configured to, after receiving the first message, determine an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, and report the result to the second controller. The plane network element sends the identification of the first MBS service and the authorization result, where the authorization result includes authorization success or authorization failure. The second control plane network element 602 is configured to receive the identifier of the first MBS service and the authorization result from the first control plane network element, and determine that the first terminal device uses the first MBS according to the authorization result and the identifier of the first MBS service Authorization of the service succeeded or authorization failed. The specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
需要说明的是，本申请实施例中，使用第一MBS服务还可以替换为获取第一MBS服务的数据、加入第一MBS服务、或者加入第一MBS服务的多播组等。也就是说，本申请实施例中，使用第一MBS服务、获取第一MBS服务的数据、加入第一MBS服务、或者加入第一MBS服务的多播组都表达相同的意思，可交替使用。在此统一说明，以下不再赘述。It should be noted that, in this embodiment of the present application, using the first MBS service may also be replaced by acquiring data of the first MBS service, joining the first MBS service, or joining a multicast group of the first MBS service, or the like. That is to say, in the embodiments of the present application, using the first MBS service, obtaining data of the first MBS service, joining the first MBS service, or joining the multicast group of the first MBS service all express the same meaning and can be used interchangeably. Here, a unified description is provided, and details are not repeated below.
可选的，本申请实施例中，第一控制面网元601可以包括统一数据存储网元、统一数据管理网元、MBS控制面(MBS control plane，MBS-C)网元、策略控制功能网元、网络开放功能网元或者应用功能网元等。Optionally, in this embodiment of the present application, the first control plane network element 601 may include a unified data storage network element, a unified data management network element, an MBS control plane (MBS control plane, MBS-C) network element, and a policy control function network. elements, network open function network elements, or application function network elements, etc.
可选的，本申请实施例中，第二控制面网元602包括会话管理网元或者移动性管理网元。Optionally, in this embodiment of the present application, the second control plane network element 602 includes a session management network element or a mobility management network element.
可选的，本申请实施例中，当第二控制面网元602为会话管理网元时，第一控制面网元601，还用于确定撤销第一终端设备使用第一MBS服务的授权，并向第二控制面网元602发送第三消息，第三消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。其中，该方案的具体实现将在后续方法实施例中详细描述，在此不予赘述。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。Optionally, in this embodiment of the present application, when the second control plane network element 602 is a session management network element, the first control plane network element 601 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service, A third message is sent to the second control plane network element 602, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device. The specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
可选的，本申请实施例中，当第二控制面网元602为移动性管理网元时，如图6所示，本申请实施例中的通信***60还可以包括会话管理网元603。其中，第一控制面网元601，还用于确定撤销第一终端设备使用第一MBS服务的授权，并向会话管理网元603发送第三消息，第三消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。会话管理网元603，用于接收第三消息，并释放第一终端设备的第一MBS服务的会话。其中，该方案的具体实现将在后续方法实施例中详细描述，在此不予赘述。基于该方案，可以避免第一MBS服务被第一终端设备一直使用的问题。Optionally, in the embodiment of the present application, when the second control plane network element 602 is a mobility management network element, as shown in FIG. 6 , the communication system 60 in the embodiment of the present application may further include a session management network element 603 . The first control plane network element 601 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service, and send a third message to the session management network element 603, where the third message includes the identifier of the first MBS service and the The identifier of the first terminal device is used to notify the release of the session of the first MBS service of the first terminal device. The session management network element 603 is configured to receive the third message and release the session of the first MBS service of the first terminal device. The specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here. Based on this solution, the problem that the first MBS service is always used by the first terminal device can be avoided.
如图7所示，为本申请实施例提供的另一种通信***70，该通信***70包括第一控制面网元701和会话管理网元702。第一控制面网元701和会话管理网元702之间可以直接通信，也可以通过其他设备的转发进行通信，本申请实施例对此不做具体 限定。As shown in FIG. 7 , another communication system 70 provided by an embodiment of the present application, the communication system 70 includes a first control plane network element 701 and a session management network element 702 . The first control plane network element 701 and the session management network element 702 may communicate directly or communicate through forwarding by other devices, which is not specifically limited in this embodiment of the present application.
其中，第一控制面网元601，用于确定撤销第一终端设备使用第一MBS服务的授权，并向会话管理网元发送第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。其中，该方案的具体实现将在后续方法实施例中详细描述，在此不予赘述。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The first control plane network element 601 is configured to determine to revoke the authorization of the first terminal device to use the first MBS service, and send a first message to the session management network element, where the first message includes the identifier of the first MBS service and the first message. The identifier of the terminal device is used to notify the release of the session of the first MBS service of the first terminal device. The specific implementation of the solution will be described in detail in the subsequent method embodiments, which will not be repeated here. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
可选的，本申请实施例中，第一控制面网元701可以包括统一数据存储网元、统一数据管理网元、MBS-C网元、策略控制功能网元、网络开放功能网元或者应用功能网元等。Optionally, in this embodiment of the present application, the first control plane network element 701 may include a unified data storage network element, a unified data management network element, an MBS-C network element, a policy control function network element, a network open function network element, or an application. functional network elements, etc.
以图6所示的通信***60或者图7所示的通信***70应用于5G MBS架构为例，则上述的统一数据存储网元所对应的网元或者实体可以为图2至图5中的UDR网元；上述的统一数据管理网元所对应的网元或者实体可以为图2至图5中的UDM网元；上述的策略控制功能网元所对应的网元或者实体可以为图2至图5中的PCF；上述的网络开放功能网元所对应的网元或者实体可以为图2至图5中的NEF；上述的应用功能网元所对应的网元或者实体可以为图2至图5中的AF；上述的MBS-C网元可以为图3中的MSF-C或图5中的MBSF；上述的会话管理网元所对应的网元或者实体可以为图2或图3中的SMF网元，也可以为图4或图5中的MB-SMF网元，在此统一说明，以下不再赘述。Taking the communication system 60 shown in FIG. 6 or the communication system 70 shown in FIG. 7 applied to the 5G MBS architecture as an example, the network elements or entities corresponding to the above-mentioned unified data storage network elements may be those in FIG. 2 to FIG. 5 . UDR network element; the network element or entity corresponding to the above-mentioned unified data management network element may be the UDM network element in FIG. 2 to FIG. 5 ; the network element or entity corresponding to the above-mentioned policy control function network element may be FIG. 2 to The PCF in Fig. 5; the network elements or entities corresponding to the above network open function network elements may be the NEFs in Figs. 2 to 5; the network elements or entities corresponding to the above application function network elements may be Figs. 2 to 5 AF in 5; the above-mentioned MBS-C network element may be the MSF-C in FIG. 3 or the MBSF in FIG. 5 ; the network element or entity corresponding to the above-mentioned session management network element may be the one in FIG. 2 or FIG. 3 The SMF network element may also be the MB-SMF network element in FIG. 4 or FIG. 5 , which is described in a unified manner here, and will not be repeated below.
需要说明的是，本申请实施例仅是以图6所示的通信***60或者图7所示的通信***70应用于5G MBS架构为例进行说明。当然，图6所示的通信***60或者图7所示的通信***70还可以应用于未来的其他网络架构中，本申请实施例对此不做具体限定。It should be noted that the embodiments of the present application are only described by taking the communication system 60 shown in FIG. 6 or the communication system 70 shown in FIG. 7 applied to the 5G MBS architecture as an example. Certainly, the communication system 60 shown in FIG. 6 or the communication system 70 shown in FIG. 7 may also be applied to other network architectures in the future, which are not specifically limited in this embodiment of the present application.
可选的，本申请实施例中的终端设备，可以是用于实现无线通信功能的设备，例如终端或者可用于终端中的芯片等。其中，终端可以是5G网络或者未来演进的PLMN中的用户设备(user equipment，UE)、接入终端、终端单元、终端站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、终端代理或终端装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备或可穿戴设备，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。终端可以是移动的，也可以是固定的。Optionally, the terminal device in this embodiment of the present application may be a device for implementing a wireless communication function, such as a terminal or a chip that can be used in the terminal, and the like. The terminal may be a user equipment (UE), an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device in a 5G network or a future evolved PLMN. equipment, terminal agent or terminal device, etc. The access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices or wearable devices, virtual reality (VR) end devices, augmented reality (AR) end devices, industrial control (industrial) wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety Terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc. Terminals can be mobile or stationary.
可选的，本申请实施例中的RAN设备指的是接入核心网的设备，例如可以是基站， 宽带网络业务网关(broadband network gateway，BNG)，汇聚交换机，非第三代合作伙伴计划(3rd generation partnership project，3GPP)接入设备等。基站可以包括各种形式的基站，例如：宏基站，微基站(也称为小站)，中继站，接入点等。Optionally, the RAN device in this embodiment of the present application refers to a device that accesses the core network, and may be, for example, a base station, a broadband network gateway (broadband network gateway, BNG), an aggregation switch, or a non-third-generation partnership project ( 3rd generation partnership project, 3GPP) access equipment, etc. The base station may include various forms of base stations, such as: a macro base station, a micro base station (also called a small station), a relay station, an access point, and the like.
可选的，本申请实施例中的第一控制面网元、第二控制面网元或者会话管理网元也可以称之为通信装置，其可以是一个通用设备或者是一个专用设备，本申请实施例对此不作具体限定。Optionally, the first control plane network element, the second control plane network element, or the session management network element in this embodiment of the present application may also be referred to as a communication device, which may be a general-purpose device or a dedicated device. The embodiment does not specifically limit this.
可选的，本申请实施例中的第一控制面网元、第二控制面网元或者会话管理网元的相关功能可以由一个设备实现，也可以由多个设备共同实现，还可以是由一个设备内的一个或多个功能模块实现，本申请实施例对此不做具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是硬件与软件的结合，或者是平台(例如，云平台)上实例化的虚拟化功能。Optionally, the related functions of the first control plane network element, the second control plane network element, or the session management network element in this embodiment of the present application may be implemented by one device, or may be implemented jointly by multiple devices, or may be implemented by a single device. It is implemented by one or more functional modules in a device, which is not specifically limited in this embodiment of the present application. It is to be understood that the above-mentioned functions can be either network elements in hardware devices, or software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (eg, a cloud platform). Virtualization capabilities.
例如，本申请实施例中的第一控制面网元、第二控制面网元或者会话管理网元的相关功能可以通过图8中的通信设备(也可以称之为通信装置)800来实现。图8所示为本申请实施例提供的通信设备800的结构示意图。该通信设备800包括一个或多个处理器801，通信线路802，以及至少一个通信接口(图8中仅是示例性的以包括通信接口804，以及一个处理器801为例进行说明)，可选的还可以包括存储器803。For example, the related functions of the first control plane network element, the second control plane network element, or the session management network element in this embodiment of the present application may be implemented by the communication device (also referred to as a communication apparatus) 800 in FIG. 8 . FIG. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 includes one or more processors 801, a communication line 802, and at least one communication interface (in FIG. 8, it is only an example to include a communication interface 804 and a processor 801 for illustration), optional The memory 803 may also be included.
处理器801可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。The processor 801 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the programs of the present application. integrated circuit.
通信线路802可包括一通路，用于连接不同组件之间。 Communication line 802 may include a path for connecting the various components.
通信接口804，可以是收发模块用于与其他设备或通信网络通信，如以太网，RAN，无线局域网(wireless local area networks，WLAN)等。例如，所述收发模块可以是收发器、收发机一类的装置。可选的，所述通信接口804也可以是位于处理器801内的收发电路，用以实现处理器的信号输入和信号输出。The communication interface 804 can be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (wireless local area networks, WLAN) and the like. For example, the transceiver module may be a device such as a transceiver or a transceiver. Optionally, the communication interface 804 may also be a transceiver circuit located in the processor 801 to implement signal input and signal output of the processor.
存储器803可以是具有存储功能的装置。例如可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路802与处理器相连接。存储器也可以和处理器集成在一起。The memory 803 may be a device having a storage function. For example, it may be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of storage devices that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being stored by a computer any other medium taken, but not limited to this. The memory may exist independently and be connected to the processor through communication line 802 . The memory can also be integrated with the processor.
其中，存储器803用于存储执行本申请方案的计算机执行指令，并由处理器801来控制执行。处理器801用于执行存储器803中存储的计算机执行指令，从而实现本申请实施例中提供的通信方法。The memory 803 is used for storing computer-executed instructions for executing the solution of the present application, and the execution is controlled by the processor 801 . The processor 801 is configured to execute the computer-executed instructions stored in the memory 803, so as to implement the communication method provided in the embodiments of the present application.
或者，可选的，本申请实施例中，也可以是处理器801执行本申请下述实施例提供的通信方法中的处理相关的功能，通信接口804负责与其他设备或通信网络通信，本申请实施例对此不做具体限定。Or, optionally, in this embodiment of the present application, the processor 801 may also perform processing-related functions in the communication methods provided in the following embodiments of the present application, and the communication interface 804 is responsible for communicating with other devices or communication networks. The embodiment does not specifically limit this.
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不做具体限定。Optionally, the computer-executed instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.
在具体实现中，作为一种实施例，处理器801可以包括一个或多个CPU，例如图8中的CPU0和CPU1。In a specific implementation, as an embodiment, the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8 .
在具体实现中，作为一种实施例，通信设备800可以包括多个处理器，例如图8中的处理器801和处理器808。这些处理器中的每一个可以是一个单核(single-core)处理器，也可以是一个多核(multi-core)处理器。这里的处理器可以包括但不限于以下至少一种：中央处理单元(central processing unit，CPU)、微处理器、数字信号处理器(DSP)、微控制器(microcontroller unit，MCU)、或人工智能处理器等各类运行软件的计算设备，每种计算设备可包括一个或多个用于执行软件指令以进行运算或处理的核。In a specific implementation, as an embodiment, the communication device 800 may include multiple processors, such as the processor 801 and the processor 808 in FIG. 8 . Each of these processors can be a single-core processor or a multi-core processor. The processor here may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or artificial intelligence Processors and other types of computing devices that run software, each computing device may include one or more cores for executing software instructions to perform operations or processing.
在具体实现中，作为一种实施例，通信设备800还可以包括输出设备805和输入设备806。输出设备805和处理器801通信，可以以多种方式来显示信息。例如，输出设备805可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备806和处理器801通信，可以以多种方式接收用户的输入。例如，输入设备806可以是鼠标、键盘、触摸屏设备或传感设备等。In a specific implementation, as an embodiment, the communication device 800 may further include an output device 805 and an input device 806 . The output device 805 is in communication with the processor 801 and can display information in a variety of ways. For example, the output device 805 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait. Input device 806 is in communication with processor 801 and can receive user input in a variety of ways. For example, the input device 806 may be a mouse, a keyboard, a touch screen device or a sensing device, or the like.
上述的通信设备800有时也可以称为通信装置，其可以是一个通用设备或者是一个专用设备。例如通信设备800可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备、上述终端设备，上述网络设备、或具有图8中类似结构的设备。本申请实施例不限定通信设备800的类型。The above-mentioned communication device 800 may also be sometimes referred to as a communication device, which may be a general-purpose device or a dedicated device. For example, the communication device 800 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, the above-mentioned terminal device, the above-mentioned network device, or a 8 devices of similar structure. This embodiment of the present application does not limit the type of the communication device 800 .
下面将结合图2至图8对本申请实施例提供的通信方法进行具体阐述。The communication method provided by the embodiment of the present application will be described in detail below with reference to FIG. 2 to FIG. 8 .
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不做具体限定。It should be noted that the name of the message between each network element or the name of each parameter in the message in the following embodiments of the present application is just an example, and other names may also be used in the specific implementation, which is not done in the embodiment of the present application. Specific restrictions.
首先，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，假设第一控制面网元为图2至图5中的UDM/UDR网元，第二控制面网元为SMF网元(这里的SMF网元可以为图2或图3中的SMF，也可以为图4或图5中的MB-SMF)，则本申请实施例提供的通信方法可以如图9所示，包括如下步骤：First, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, it is assumed that the first control plane network element is the UDM/UDR network in FIG. 2 to FIG. 5 . element, the network element of the second control plane is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 ), then the embodiments of the present application provide The communication method can be shown in Figure 9, including the following steps:
S901、服务广播(service announce)流程。具体实现可参考现有技术，在此不予赘述。S901, a service announcement (service announcement) process. For specific implementation, reference may be made to the prior art, which is not repeated here.
其中，通过该服务广播流程，第一终端设备可以获取MBS用户服务的信息。Wherein, through the service broadcasting process, the first terminal device can acquire information of the MBS user service.
需要说明的是，本申请实施例中的第一终端设备可以为图2至图5所示的任一5G MBS架构中的任意一个UE，在此统一说明，以下不再赘述。It should be noted that the first terminal device in this embodiment of the present application may be any UE in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
S902、第一终端设备注册到网络。具体实现可参考现有技术，在此不予赘述。S902, the first terminal device registers with the network. For specific implementation, reference may be made to the prior art, which is not repeated here.
需要说明的是，本申请实施例中的步骤S901与步骤S902之间没有必然的执行先后顺序，可以先执行步骤S901，再执行步骤S902；也可以是先执行步骤S902，再执行步骤S901；还可以是同时执行步骤S901与步骤S902，本申请实施例对此不做具体 限定。It should be noted that there is no necessary order of execution between step S901 and step S902 in this embodiment of the present application, and step S901 may be executed first, and then step S902 may be executed; or step S902 may be executed first, and then step S901 may be executed; Step S901 and step S902 may be performed simultaneously, which is not specifically limited in this embodiment of the present application.
进一步的，当第一终端设备使用第一MBS服务时，第一终端设备进行以下操作中的任意一种：Further, when the first terminal device uses the first MBS service, the first terminal device performs any one of the following operations:
操作一、通过控制面加入第一MBS服务，包括如下步骤S903-S904: Operation 1. Join the first MBS service through the control plane, including the following steps S903-S904:
S 903、第一终端设备向AMF网元发送N1消息。相应的，AMF网元接收来自第一终端设备的N1消息。其中，N1消息用于请求建立(或修改)协议数据单元(protocol data unit，PDU)会话、或用于请求使用第一MBS服务、或用于请求接收第一MBS服务的数据、或用于请求加入一个多播组、或用于请求激活第一MBS服务的上下文。S903. The first terminal device sends an N1 message to the AMF network element. Correspondingly, the AMF network element receives the N1 message from the first terminal device. Wherein, the N1 message is used for requesting to establish (or modify) a protocol data unit (protocol data unit, PDU) session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting Join a multicast group, or a context for requesting activation of the first MBS service.
本申请实施例中，N1消息包括第一MBS服务的标识(MBS service identifier)。第一MBS服务的标识用于标识第一MBS服务。示例性的，第一MBS服务的标识可以为第一MBS服务的多播网际协议(internet protocol，IP)地址，或者第一MBS服务的临时移动组标识(temporary mobile group identity，TMGI)。In this embodiment of the present application, the N1 message includes an identifier (MBS service identifier) of the first MBS service. The identifier of the first MBS service is used to identify the first MBS service. Exemplarily, the identifier of the first MBS service may be a multicast internet protocol (internet protocol, IP) address of the first MBS service, or a temporary mobile group identity (temporary mobile group identity, TMGI) of the first MBS service.
可选的，本申请实施例中，N1消息还可以包括单网络切片选择辅助信息(network slice selection assistance information，S-NSSAI)和/或数据网络名称(data network name，DNN)。S-NSSAI用于指示第一MBS服务使用的切片。DNN用于标识第一MBS服务所在的数据网络。Optionally, in this embodiment of the present application, the N1 message may further include single network slice selection assistance information (network slice selection assistance information, S-NSSAI) and/or a data network name (data network name, DNN). S-NSSAI is used to indicate the slice used by the first MBS service. The DNN is used to identify the data network where the first MBS service is located.
示例性的，本申请实施例中的N1消息例如可以为PDU会话建立请求(PDU session establishment request)消息。Exemplarily, the N1 message in this embodiment of the present application may be, for example, a PDU session establishment request (PDU session establishment request) message.
可选的，本申请实施例中的AMF网元可以为图2至图5所示的任一5G MBS架构中的AMF，在此统一说明，以下不再赘述。Optionally, the AMF network element in this embodiment of the present application may be an AMF in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
S904、AMF网元向SMF网元发送消息2。相应的，SMF网元接收来自AMF网元的消息2。其中，消息2用于请求创建(或修改)PDU会话、或者用于请求激活和创建第一MBS服务上下文。该消息2包括第一MBS服务的标识。S904, the AMF network element sends message 2 to the SMF network element. Correspondingly, the SMF network element receives the message 2 from the AMF network element. Wherein, message 2 is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context. The message 2 includes the identification of the first MBS service.
可选的，本申请实施例中，若N1消息包括S-NSSAI和/或DNN，则消息2中还可以包括N1消息中的S-NSSAI和/或DNN。Optionally, in this embodiment of the present application, if the N1 message includes the S-NSSAI and/or the DNN, the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
操作二、通过控制面加入第一MBS服务，包括如下步骤S905-S907:Operation 2: Join the first MBS service through the control plane, including the following steps S905-S907:
S905、第一终端设备向AMF网元发送N1消息。相应的，AMF网元接收来自第一终端设备的N1消息。S905, the first terminal device sends an N1 message to the AMF network element. Correspondingly, the AMF network element receives the N1 message from the first terminal device.
其中，步骤S905的相关描述可参考上述步骤S903，在此不再赘述。The related description of step S905 can refer to the above-mentioned step S903, and details are not repeated here.
S906、AMF网元向中间SMF(intermediate，I-SMF)网元发送消息2。相应的，I-SMF网元接收来自AMF网元的消息2。其中，消息2用于请求创建(或修改)PDU会话上下文。S906, the AMF network element sends message 2 to an intermediate SMF (intermediate, I-SMF) network element. Correspondingly, the I-SMF network element receives the message 2 from the AMF network element. Among them, message 2 is used to request the creation (or modification) of the PDU session context.
需要说明的是，该场景下，SMF网元为第一MBS服务对应的锚点SMF或者控制SMF，I-SMF网元为AMF网元选择的可服务第一终端设备的PDU会话管理网元。It should be noted that, in this scenario, the SMF network element is the anchor SMF or control SMF corresponding to the first MBS service, and the I-SMF network element is the PDU session management network element selected by the AMF network element that can serve the first terminal device.
其中，步骤S906的相关描述可参考上述步骤S904，区别比如在于将步骤S904中的SMF网元替换为步骤S906中的I-SMF网元，在此不再赘述。The relevant description of step S906 can refer to the above-mentioned step S904, the difference is that the SMF network element in step S904 is replaced with the I-SMF network element in step S906, which is not repeated here.
S907、I-SMF网元向SMF网元发送消息3。相应的，SMF接收来自I-SMF网元的消息3。其中，消息3用于请求创建(或修改)PDU会话上下文。S907, the I-SMF network element sends message 3 to the SMF network element. Correspondingly, the SMF receives the message 3 from the I-SMF network element. Among them, message 3 is used to request the creation (or modification) of the PDU session context.
本申请实施例中，消息3包括第一MBS服务的标识。In the embodiment of the present application, the message 3 includes the identifier of the first MBS service.
可选的，本申请实施例中，若N1消息包括S-NSSAI和/或DNN，则消息3中还可以包括N1消息中的S-NSSAI和/或DNN。Optionally, in this embodiment of the present application, if the N1 message includes the S-NSSAI and/or the DNN, the message 3 may further include the S-NSSAI and/or the DNN in the N1 message.
操作三、通过用户面加入第一MBS服务，包括如下步骤S908-S909:Operation 3: Join the first MBS service through the user plane, including the following steps S908-S909:
S908、第一终端设备向UPF网元发送消息4。相应的，UPF网元接收来自第一终端设备的消息4。其中，消息4用于请求加入一个多播组。S908, the first terminal device sends message 4 to the UPF network element. Correspondingly, the UPF network element receives the message 4 from the first terminal device. Among them, message 4 is used to request to join a multicast group.
本申请实施例中的消息4包括第一MBS服务的标识。The message 4 in the embodiment of the present application includes the identifier of the first MBS service.
可选的，本申请实施例中的消息4还可以包括S-NSSAI和/或DNN。S-NSSAI用于指示第一MBS服务使用的切片。DNN用于标识第一MBS服务所在的数据网络。Optionally, the message 4 in this embodiment of the present application may further include S-NSSAI and/or DNN. S-NSSAI is used to indicate the slice used by the first MBS service. The DNN is used to identify the data network where the first MBS service is located.
示例性的，本申请实施例中的消息4例如可以为网络组管理协议(internet group management protocol，IGMP)加入(IGMP join)消息或者多播监听报告(multicast listener report，MLR)消息。Exemplarily, the message 4 in this embodiment of the present application may be, for example, an internet group management protocol (internet group management protocol, IGMP) join (IGMP join) message or a multicast listener report (multicast listener report, MLR) message.
可选的，本申请实施例中的UPF网元可以为图2或图3所示的5G MBS架构中的中的UPF，也可以是图4或图5所示的5G MBS架构中的中的MB-UPF，在此统一说明，以下不再赘述。Optionally, the UPF network element in the embodiment of the present application may be the UPF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or may be the UPF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 . The MB-UPF is described in a unified manner here, and will not be repeated below.
S909、UPF网元向SMF网元发送用户面事件通知(user plane event notify)。相应的，SMF网元接收来自UPF网元的用户面事件通知。其中，该用户面事件通知包括第一MBS服务的标识，用于通知SMF网元接收到IGMP Join或者MLR消息。S909, the UPF network element sends a user plane event notification (user plane event notify) to the SMF network element. Correspondingly, the SMF network element receives the user plane event notification from the UPF network element. Wherein, the user plane event notification includes the identifier of the first MBS service, which is used to notify the SMF network element that the IGMP Join or MLR message is received.
可选的，若上述消息4还包括S-NSSAI和/或DNN，则该用户面事件通知还可以包括S-NSSAI和/或DNN。Optionally, if the above message 4 further includes S-NSSAI and/or DNN, the user plane event notification may further include S-NSSAI and/or DNN.
需要说明的是，本申请实施例中，UPF网元可能通过其它SMF网元(如SMF1网元)向SMF网元发送用户面事件通知，本申请实施例对此不做具体限定。在这种情况下，SMF网元为第一MBS服务对应的锚点SMF或者控制SMF，SMF1为服务第一终端设备的PDU会话管理网元。It should be noted that, in the embodiment of the present application, the UPF network element may send a user plane event notification to the SMF network element through other SMF network elements (such as the SMF1 network element), which is not specifically limited in the embodiment of the present application. In this case, the SMF network element is the anchor SMF or the control SMF corresponding to the first MBS service, and the SMF1 is the PDU session management network element serving the first terminal device.
通过上述操作一或操作二或操作三，第一终端设备可以请求加入第一MBS服务。Through the above operation 1 or operation 2 or operation 3, the first terminal device may request to join the first MBS service.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S910-S915所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S910-S915:
S910、SMF网元向UDM/UDR网元发送授权请求(authorization request)。相应的，UDM/UDR网元接收来自SMF网元的授权请求。其中，该授权请求用于请求授权第一终端设备使用第一MBS服务。S910, the SMF network element sends an authorization request (authorization request) to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the authorization request from the SMF network element. Wherein, the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
本申请实施例中，该授权请求包括第一MBS服务的标识和第一终端设备的标识。In this embodiment of the present application, the authorization request includes the identifier of the first MBS service and the identifier of the first terminal device.
可选的，本申请实施例中，第一终端设备的标识例如可以包括签约隐藏标识(subscription concealed identifier，SUCI)、5G-全球唯一临时标识(global unique temporary identifier，GUTI)、通用公共用户标识符(generic public subscription identifier，GPSI)、永久设备标识符(permanent equipment identifier，PEI)、或者第一终端设备使用第一MBS服务时的用户标识、或者用户的MBS签约用户标识等，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, the identifier of the first terminal device may include, for example, a subscription concealed identifier (SUCI), a 5G-global unique temporary identifier (GUTI), and a general public user identifier. (generic public subscription identifier, GPSI), permanent equipment identifier (permanent equipment identifier, PEI), or the user identifier when the first terminal device uses the first MBS service, or the user's MBS subscription user identifier, etc. This is not specifically limited.
需要说明的是，本申请实施例中，第一终端设备使用第一MBS服务可以包括第一终端设备获取第一MBS服务的数据，在此统一说明，以下不再赘述。It should be noted that, in this embodiment of the present application, the use of the first MBS service by the first terminal device may include that the first terminal device obtains data of the first MBS service, which is described here in a unified manner, and will not be repeated below.
S911、UDM/UDR网元根据第一MBS服务的标识和第一终端设备的标识，确定第 一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S911. The UDM/UDR network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device. The authorization result includes authorization success or authorization failure.
一种可能的实现方式中，UDM/UDR网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，包括：UDM/UDR网元根据该第一MBS服务的标识获取对应的第一MBS服务的签约数据，该签约数据中包括该第一MBS服务的授权信息(也可以理解为权限信息)。进而，UDM/UDR网元检查该第一MBS服务的授权信息，若该授权信息指示授权该第一终端设备使用该第一MBS用户服务，则授权结果为授权成功；或者，若该授权信息指示没有授权该第一终端设备使用该第一MBS用户服务，则授权结果为授权失败。In a possible implementation manner, the UDM/UDR network element determines the authorization result of the first terminal device using the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: the UDM/UDR network element according to The identifier of the first MBS service acquires the subscription data of the corresponding first MBS service, and the subscription data includes authorization information (which may also be understood as authority information) of the first MBS service. Further, the UDM/UDR network element checks the authorization information of the first MBS service, and if the authorization information indicates that the first terminal device is authorized to use the first MBS user service, the authorization result is that the authorization is successful; or, if the authorization information indicates that the authorization is successful If the first terminal device is not authorized to use the first MBS user service, the authorization result is authorization failure.
示例性的，本申请实施例中，可以通过1比特指示授权结果，比如，“0”表示授权成功，“1”表示授权失败；或者，“1”表示授权成功，“0”表示授权失败等，本申请实施例对此不做具体限定。Exemplarily, in this embodiment of the present application, the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and "1" indicates that the authorization fails; or, "1" indicates that the authorization is successful, and "0" indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
S912、UDM/UDR网元向SMF网元发送授权响应(authorization response)。相应的，SMF网元接收来自UDM/UDR网元的授权响应。其中，该授权响应包括上述授权结果以及第一MBS服务的标识。S912, the UDM/UDR network element sends an authorization response (authorization response) to the SMF network element. Correspondingly, the SMF network element receives the authorization response from the UDM/UDR network element. Wherein, the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
可选的，本申请实施例中，该授权响应还可以包括第一终端设备的标识，用于SMF网元确定授权结果的适用对象为第一终端设备。当然，若授权响应中未包含第一终端设备的标识，SMF网元也可以根据SMF网元和UDM/UDR网元之间的会话标识来确定授权结果适用的对象为第一终端设备，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, the authorization response may further include an identifier of the first terminal device, and the SMF network element determines that the applicable object of the authorization result is the first terminal device. Of course, if the authorization response does not contain the identifier of the first terminal device, the SMF network element may also determine that the object to which the authorization result applies is the first terminal device according to the session identifier between the SMF network element and the UDM/UDR network element. The embodiment does not specifically limit this.
可选的，本申请实施例中，若授权结果为授权成功，则授权响应中还可以包括第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, if the authorization result is that the authorization is successful, the authorization response may further include an authorization validity period for the first terminal device to use the first MBS service.
S913、SMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S913. The SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
进一步的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S914：Further, in the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S914:
S914、SMF网元建立或更新第一终端设备的第一MBS服务的会话。S914, the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
示例性的，本申请实施例中，SMF网元建立或更新第一终端设备的第一MBS服务的会话具体包括以下中的任一项或多项：Exemplarily, in this embodiment of the present application, the session in which the SMF network element establishes or updates the first MBS service of the first terminal device specifically includes any one or more of the following:
SMF网元向UPF网元发送用于建立或修改N4会话的消息；The SMF network element sends a message for establishing or modifying the N4 session to the UPF network element;
SMF网元向PCF网元发送用于建立策略关联的消息；The SMF network element sends a message for establishing policy association to the PCF network element;
SMF网元通过AMF网元向NG-RAN设备发送N2消息；SMF network element sends N2 message to NG-RAN equipment through AMF network element;
SMF网元通过AMF网元向第一终端设备发送N1消息；The SMF network element sends an N1 message to the first terminal device through the AMF network element;
SMF网元向I-SMF网元或SMF1网元发送会话建立或修改响应消息，或MBS上下文创建或激活响应消息；The SMF network element sends a session establishment or modification response message, or an MBS context creation or activation response message to the I-SMF network element or the SMF1 network element;
SMF网元向MBS-C发送用于请求建立会话的消息；或者，The SMF network element sends a message for requesting session establishment to MBS-C; or,
SMF网元向AMF网元发送MBS上下文创建或激活响应消息。The SMF network element sends an MBS context creation or activation response message to the AMF network element.
本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S915：In the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S915:
S915、SMF网元向第一终端设备发送指示信息1。相应的，第一终端设备接收来自SMF网元的指示信息1。该指示信息1用于指示授权第一终端设备使用第一MBS 服务失败。S915, the SMF network element sends indication information 1 to the first terminal device. Correspondingly, the first terminal device receives the indication information 1 from the SMF network element. The indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若SMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，SMF网元还可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
上述步骤S910-S915基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S910-S915 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括如步骤S916-S918所示的撤销第一终端设备使用第一MBS服务的授权的流程：Optionally, in this embodiment of the present application, after the above-mentioned authorization process for the first MBS service ends, the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S916-S918. Service authorization process:
S916、UDM/UDR网元确定撤销第一终端设备使用第一MBS服务的授权。S916: The UDM/UDR network element determines to revoke the authorization of the first terminal device to use the first MBS service.
示例性的，本申请实施例中，UDM/UDR网元确定撤销第一终端设备使用第一MBS服务的授权的条件包括以下任意一种：Exemplarily, in this embodiment of the present application, the conditions for the UDM/UDR network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
第一终端设备使用第一MBS服务的授权有效期结束；或者，The validity period of the authorization for the first terminal device to use the first MBS service ends; or,
第一MBS服务的授权信息发生变化；或者，The authorization information for the first MBS service changes; or,
UDM/UDR网元接收到来自AF/NEF网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。The UDM/UDR network element receives a notification message from the AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service .
可选的，本申请实施例中，在UDM/UDR网元接收AF网元或者NEF网元的通知消息之前，UDM/UDR网元还可以向AF网元或者NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。示例性的，在本申请实施例中，第一MBS服务授权变更事件例如可以包括以下至少一项：第一终端设备使用第一MBS服务的授权有效期发生变更、第一MBS服务的授权信息发生变化或者撤销第一终端设备使用第一MBS服务的授权的事件。该说明适用于本申请所有实施例，在此统一说明，以下不再赘述。Optionally, in this embodiment of the present application, before the UDM/UDR network element receives the notification message from the AF network element or the NEF network element, the UDM/UDR network element may also send a subscription message to the AF network element or the NEF network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service. Exemplarily, in this embodiment of the present application, the first MBS service authorization change event may include, for example, at least one of the following: the validity period of authorization for the first terminal device to use the first MBS service is changed, and the authorization information of the first MBS service is changed. Or an event of revoking the authorization of the first terminal device to use the first MBS service. This description is applicable to all the embodiments of the present application, and is uniformly described here, and will not be repeated below.
需要说明的是，本申请实施例中，当AF网元属于第三方时，AF网元与UDM/UDR网元之间需要通过NEF网元或者代理(Proxy)等网元进行交互，在此统一说明，以下不再赘述。It should be noted that, in the embodiment of this application, when the AF network element belongs to a third party, the interaction between the AF network element and the UDM/UDR network element needs to be performed through network elements such as NEF network element or proxy (Proxy), which is unified here. Description, which will not be repeated below.
S917、UDM/UDR网元向SMF网元发送撤销请求消息。相应的，SMF网元接收来自UDM/UDR网元的撤销请求消息。该撤销请求消息包括第一MBS服务的标识以及第一终端设备的标识，用于请求释放第一MBS服务相关的PDU会话、或者、删除(或去激活)第一MBS服务相关的PDU会话的上下文。S917, the UDM/UDR network element sends a revocation request message to the SMF network element. Correspondingly, the SMF network element receives the revocation request message from the UDM/UDR network element. The revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
可选的，本申请实施例中，UDM/UDR网元还可以根据接收到的第一MBS服务的标识，获取对应的S-NSSAI，和/或DNN。其中，S-NSSAI用于指示第一MBS服务使用的切片。DNN用于标识第一MBS服务所在的数据网络。进而，该撤销请求消息可包括第一MBS服务对应的S-NSSAI，和/或DNN，本申请实施例对此不做具体限定。Optionally, in the embodiment of the present application, the UDM/UDR network element may also obtain the corresponding S-NSSAI and/or DNN according to the received identifier of the first MBS service. The S-NSSAI is used to indicate the slice used by the first MBS service. The DNN is used to identify the data network where the first MBS service is located. Furthermore, the revocation request message may include the S-NSSAI corresponding to the first MBS service, and/or the DNN, which is not specifically limited in this embodiment of the present application.
S918、SMF网元根据第一MBS服务的标识和第一终端设备的标识，撤销第一终端设备使用第一MBS服务的授权。S918. The SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
本申请实施例中，撤销第一终端设备使用第一MBS服务的授权可以理解为释放第 一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，在此统一说明，以下不再赘述。In this embodiment of the present application, revoking the authorization of the first terminal device to use the first MBS service may be understood as releasing the session of the first MBS service of the first terminal device, or deleting (or deactivating) the first MBS of the first terminal device The context of the service-related PDU session is uniformly described here, and will not be repeated below.
示例性的，本申请实施例中，SMF网元撤销第一终端设备使用第一MBS服务的授权包括以下至少一项：Exemplarily, in this embodiment of the present application, the SMF network element revoking the authorization of the first terminal device to use the first MBS service includes at least one of the following:
SMF网元向UPF网元发送请求消息，该请求消息用于请求释放第一终端设备的第一MBS服务的PDU会话的用户面资源；或者，The SMF network element sends a request message to the UPF network element, where the request message is used to request to release the user plane resources of the PDU session of the first MBS service of the first terminal device; or,
SMF网元向AMF网元或者第一终端设备发送请求消息，该请求消息用于请求释放第一终端设备的第一MBS服务的PDU会话；或者，The SMF network element sends a request message to the AMF network element or the first terminal device, where the request message is used to request to release the PDU session of the first MBS service of the first terminal device; or,
SMF网元向AMF网元或NG-RAN设备发送请求消息，该请求消息用于请求删除或去激活第一终端设备的第一MBS服务上下文；或者，The SMF network element sends a request message to the AMF network element or the NG-RAN device, where the request message is used to request deletion or deactivation of the first MBS service context of the first terminal device; or,
SMF网元向第一终端设备发送通知消息，该通知消息用于通知第一终端设备使用第一MBS服务的授权撤销或者第一终端设备使用第一MBS服务的授权有效期结束。The SMF network element sends a notification message to the first terminal device, where the notification message is used to notify the first terminal device that the authorization to use the first MBS service is revoked or that the validity period of the authorization for the first terminal device to use the first MBS service ends.
可选的，本申请实施例中，在SMF网元发送上述消息之前，需要根据接收到的第一MBS服务的标识和第一终端设备的标识，确定第一终端设备的第一MBS服务对应的PDU会话、或该PDU会话的标识、或者该PDU会话的上下文的标识，并在上述消息中携带第一终端设备的第一MBS服务对应的PDU会话、或该PDU会话的标识、或者该PDU会话的上下文的标识。当然，上述消息中还包括第一终端设备的标识，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, before the SMF network element sends the above message, it is necessary to determine, according to the received identifier of the first MBS service and the identifier of the first terminal device, the corresponding value of the first MBS service of the first terminal device. The PDU session, or the identifier of the PDU session, or the identifier of the context of the PDU session, and the above message carries the PDU session corresponding to the first MBS service of the first terminal device, or the identifier of the PDU session, or the PDU session. The identity of the context. Of course, the above message also includes the identifier of the first terminal device, which is not specifically limited in this embodiment of the present application.
现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。基于上述步骤S916-S918，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S916-S918, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
需要说明的是，本申请实施例步骤S910-S915提供的第一终端设备使用第一MBS服务的授权流程与步骤S916-S918提供的撤销第一终端设备使用第一MBS服务的授权流程是相互独立的，可以相互解耦。也就是说，本申请实施例步骤S910-S915提供的第一终端设备使用第一MBS服务的授权流程也可以使用其他的撤销第一终端设备使用第一MBS服务的授权流程；或者，本申请实施例步骤S916-S918提供的撤销第一终端设备使用第一MBS服务的授权流程也可以使用其他的第一终端设备使用第一MBS服务的授权流程，本申请实施例对此不做具体限定。It should be noted that the authorization process for the first terminal device to use the first MBS service provided by steps S910-S915 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S916-S918 are independent of each other. Yes, they can be decoupled from each other. That is to say, the authorization process for the first terminal device to use the first MBS service provided by steps S910-S915 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service; For example, the authorization process for revoking the first terminal device to use the first MBS service provided in steps S916-S918 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
其中，上述步骤S901至S918中UDM/UDR网元或者SMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者SMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the SMF network element in the above steps S901 to S918 may be called by the processor 801 in the communication device 800 shown in FIG. 8 to the application code stored in the memory 803 to instruct the UDM/UDR network element. element or SMF network element, and this embodiment does not impose any limitation on this.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，假设第一控制面网元为MBS-C网元(这里的MBS-C网元可以为图3中的MSF-C或图5中的MBSF)或者PCF网元，第二控制面网元为SMF网元(这里的SMF网元可以为图2或图3中的SMF，也可以为图4或图5中的MB-SMF)，则本申请实施例提供的通信方法可以如图10所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, it is assumed that the first control plane network element is the MBS-C network element (the MBS here). -C network element can be MSF-C in FIG. 3 or MBSF in FIG. 5) or PCF network element, and the second control plane network element is SMF network element (the SMF network element here can be the one in FIG. 2 or FIG. 3 ) The SMF may also be the MB-SMF in FIG. 4 or FIG. 5 ), then the communication method provided by the embodiment of the present application may be as shown in FIG. 10 , including the following steps:
S1001-S1009、与图9所示的实施例中步骤S901-S909相同，具体可参考图9所示的实施例，在此不再赘述。S1001-S1009 are the same as steps S901-S909 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1010-S1015所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1010-S1015:
S1010、SMF网元向MBS-C/PCF网元发送授权请求(authorization request)。相应的，MBS-C/PCF网元接收来自SMF网元的授权请求。其中，该授权请求用于请求授权第一终端设备使用第一MBS服务。该授权请求包括第一MBS服务的标识和第一终端设备的标识。S1010, the SMF network element sends an authorization request (authorization request) to the MBS-C/PCF network element. Correspondingly, the MBS-C/PCF network element receives the authorization request from the SMF network element. Wherein, the authorization request is used for requesting to authorize the first terminal device to use the first MBS service. The authorization request includes the identification of the first MBS service and the identification of the first terminal device.
其中，步骤S1010的相关描述可参考图9所示的实施例中的步骤S910，区别比如在于：将步骤S910中的UDM/UDR网元替换为步骤S1010中的MBS-C/PCF网元，在此不再赘述。For the description of step S1010, reference may be made to step S910 in the embodiment shown in FIG. 9. The difference is, for example, that the UDM/UDR network element in step S910 is replaced with the MBS-C/PCF network element in step S1010, and the This will not be repeated here.
S1011、MBS-C/PCF网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S1011. The MBS-C/PCF network element determines, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service. The authorization result includes authorization success or authorization failure.
一种可能的实现方式中，MBS-C/PCF网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，包括：MBS-C/PCF网元向UDM/UDR网元发送请求消息，该请求消息包括该第一MBS服务的标识，用于请求该第一MBS服务的签约数据；MBS-C/PCF网元接收来自UDM/UDR网元的该第一MBS服务的签约数据，该签约数据中包括该第一MBS服务的授权信息。进而，MBS-C/PCF检查该第一MBS服务的授权信息，若该授权信息指示授权该第一终端设备使用该第一MBS用户服务，则授权结果为授权成功；或者，若该授权信息指示没有授权该第一终端设备使用该第一MBS用户服务，则授权结果为授权失败。In a possible implementation manner, the MBS-C/PCF network element determines the authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: MBS-C/ The PCF network element sends a request message to the UDM/UDR network element, where the request message includes the identifier of the first MBS service and is used to request the subscription data of the first MBS service; the MBS-C/PCF network element receives data from the UDM/UDR network element subscription data of the first MBS service, where the subscription data includes authorization information of the first MBS service. Further, the MBS-C/PCF checks the authorization information of the first MBS service, and if the authorization information indicates that the first terminal device is authorized to use the first MBS user service, the authorization result is that the authorization is successful; or, if the authorization information indicates that the authorization is successful If the first terminal device is not authorized to use the first MBS user service, the authorization result is authorization failure.
另一种可能的实现方式中，MBS-C/PCF网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，包括：MBS-C/PCF网元向AF/NEF网元发送请求消息，该请求消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务；MBS-C/PCF网元接收来自AF/NEF网元的第一终端设备使用第一MBS服务的授权结果。可选的，若授权结果为授权成功，则MBS-C/PCF网元接收来自AF/NEF网元的第一终端设备使用第一MBS服务的授权有效期。In another possible implementation manner, the MBS-C/PCF network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, including: MBS-C /The PCF network element sends a request message to the AF/NEF network element, where the request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; MBS-C/ The PCF network element receives the authorization result of the first terminal device using the first MBS service from the AF/NEF network element. Optionally, if the authorization result is that the authorization is successful, the MBS-C/PCF network element receives the authorization validity period for the first terminal device to use the first MBS service from the AF/NEF network element.
示例性的，本申请实施例中，可以通过1比特指示授权结果，比如，“0”表示授权成功，“1”表示授权失败；或者，“1”表示授权成功，“0”表示授权失败等，本申请实施例对此不做具体限定。Exemplarily, in this embodiment of the present application, the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and "1" indicates that the authorization fails; or, "1" indicates that the authorization is successful, and "0" indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
S1012、MBS-C/PCF网元向SMF网元发送授权响应(authorization response)。相应的，SMF网元接收来自MBS-C/PCF网元的授权响应。其中，该授权响应包括上述授权结果以及第一MBS服务的标识。S1012, the MBS-C/PCF network element sends an authorization response (authorization response) to the SMF network element. Correspondingly, the SMF network element receives the authorization response from the MBS-C/PCF network element. Wherein, the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
其中，步骤S1012的相关描述可参考图9所示的实施例中的步骤S912，区别比如在于：将步骤S912中的UDM/UDR网元替换为步骤S1012中的MBS-C/PCF网元，在此不再赘述。For the description of step S1012, reference may be made to step S912 in the embodiment shown in FIG. 9. The difference is, for example, that the UDM/UDR network element in step S912 is replaced with the MBS-C/PCF network element in step S1012, and the This will not be repeated here.
S1013、SMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S1013 , the SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
进一步的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1014：Further, in the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1014:
S1014、SMF网元建立或更新第一终端设备的第一MBS服务的会话。S1014, the SMF network element establishes or updates the session of the first MBS service of the first terminal device.
其中，SMF网元建立或更新第一终端设备的第一MBS服务的会话的相关实现可参考图9所示的实施例中的步骤S914，在此不再赘述。For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
可选的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识以及第一终端设备的标识；或者，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识、第一终端设备的标识、以及第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1015：In the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1015:
S1015、SMF网元向第一终端设备发送指示信息1。相应的，第一终端设备接收来自SMF网元的指示信息1。该指示信息1用于指示授权第一终端设备使用第一MBS服务失败。S1015 , the SMF network element sends indication information 1 to the first terminal device. Correspondingly, the first terminal device receives the indication information 1 from the SMF network element. The indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若SMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，SMF网元还可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
上述步骤S1010-S1015基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S1010-S1015 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括如步骤S1016-S1018所示的撤销第一终端设备使用第一MBS服务的授权的流程：Optionally, in this embodiment of the present application, after the above-mentioned authorization process for the first MBS service ends, the communication method provided in this embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1016-S1018. Service authorization process:
S1016、MBS-C/PCF网元确定撤销第一终端设备使用第一MBS服务的授权。S1016. The MBS-C/PCF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
示例性的，本申请实施例中，MBS-C/PCF网元确定撤销第一终端设备使用第一MBS服务的授权的条件包括以下任意一种：Exemplarily, in this embodiment of the present application, the conditions for the MBS-C/PCF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
第一终端设备使用第一MBS服务的授权有效期结束；或者，The validity period of the authorization for the first terminal device to use the first MBS service ends; or,
第一MBS服务的授权信息发生变化；或者，The authorization information for the first MBS service changes; or,
MBS-C/PCF网元接收到来自AF/NEF网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权；或者，The MBS-C/PCF network element receives a notification message from the AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first MBS service authorization; or,
MBS-C/PCF网元接收到来自UDM/UDR网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。The MBS-C/PCF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the first terminal device from using the first MBS service authorization.
可选的，本申请实施例中，在MBS-C/PCF网元接收AF/NEF网元的通知消息之前，MBS-C/PCF网元还可以向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。Optionally, in this embodiment of the present application, before the MBS-C/PCF network element receives the notification message of the AF/NEF network element, the MBS-C/PCF network element may also send a subscription message to the AF/NEF network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service.
可选的，本申请实施例中，在MBS-C/PCF网元接收UDM/UDR网元的通知消息之前，MBS-C/PCF网元还可以向UDM/UDR网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。当然，UDM/UDR网 元还可以进一步向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件，本申请实施例对此不做具体限定。其中，第一MBS服务授权变更事件的示例可参考图9所示的实施例，在此不再赘述。Optionally, in this embodiment of the present application, before the MBS-C/PCF network element receives the notification message of the UDM/UDR network element, the MBS-C/PCF network element may also send a subscription message to the UDM/UDR network element, and the subscription The message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service. Of course, the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions. For an example of the first MBS service authorization change event, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
需要说明的是，本申请实施例中，当AF网元属于第三方时，AF网元与UDM/UDR网元之间，或者AF网元与MBS-C/PCF网元之间需要通过NEF网元或者代理(Proxy)等网元进行交互，在此统一说明，以下不再赘述。It should be noted that, in the embodiment of the present application, when the AF network element belongs to a third party, the NEF network element needs to pass between the AF network element and the UDM/UDR network element, or between the AF network element and the MBS-C/PCF network element. Elements or network elements such as a proxy (Proxy) interact with each other, which will be described in a unified manner here, and will not be repeated below.
S1017、MBS-C/PCF网元向SMF网元发送撤销请求消息。相应的，SMF网元接收来自MBS-C/PCF网元的撤销请求消息。该撤销请求消息包括第一MBS服务的标识以及第一终端设备的标识，用于请求释放第一MBS服务相关的PDU会话、或者、删除(或去激活)第一MBS服务相关的PDU会话的上下文。S1017, the MBS-C/PCF network element sends a revocation request message to the SMF network element. Correspondingly, the SMF network element receives the revocation request message from the MBS-C/PCF network element. The revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
其中，步骤S1017的相关描述可参考图9所示的实施例中的步骤S917，区别比如在于将步骤S917中的UDM/UDR网元替换为步骤S1017中的MBS-C/PCF网元，在此不再赘述。For the relevant description of step S1017, reference may be made to step S917 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S917 is replaced with the MBS-C/PCF network element in step S1017, here No longer.
S1018、SMF网元根据第一MBS服务的标识和第一终端设备的标识，撤销第一终端设备使用第一MBS服务的授权。S1018. The SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
其中，步骤S1018与图9所示的实施例中步骤S918相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1018 is the same as step S918 in the embodiment shown in FIG. 9 , for details, reference may be made to the embodiment shown in FIG. 9 , and details are not repeated here.
现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。基于上述步骤S1016-S1018，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1016-S1018, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
需要说明的是，本申请实施例步骤S1010-S1015提供的第一终端设备使用第一MBS服务的授权流程与步骤S1016-S1018提供的撤销第一终端设备使用第一MBS服务的授权流程是相互独立的，可以相互解耦。也就是说，本申请实施例步骤S1010-S1015提供的第一终端设备使用第一MBS服务的授权流程也可以使用其他的撤销第一终端设备使用第一MBS服务的授权流程；或者，本申请实施例步骤S1016-S1018提供的撤销第一终端设备使用第一MBS服务的授权流程也可以使用其他的第一终端设备使用第一MBS服务的授权流程，本申请实施例对此不做具体限定。It should be noted that the authorization process for the first terminal device to use the first MBS service provided by steps S1010-S1015 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1016-S1018 are independent of each other. Yes, they can be decoupled from each other. That is to say, the authorization process for the first terminal device to use the first MBS service provided by steps S1010-S1015 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service; For example, the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1016-S1018 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
其中，上述步骤S1001至S1018中MBS-C/PCF网元或者SMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该MBS-C/PCF网元或者SMF网元执行，本实施例对此不作任何限制。The actions of the MBS-C/PCF network element or the SMF network element in the above steps S1001 to S1018 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the MBS-C/PCF network element. The implementation of the C/PCF network element or the SMF network element is not limited in this embodiment.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，假设第一控制面网元为AF网元(这里的AF可以为图2至图5中的AF)，第二控制面网元为SMF网元(这里的SMF网元可以为图2或图3中的SMF，也可以为图4或图5中的MB-SMF)，则本申请实施例提供的通信方法可以如图11所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, it is assumed that the first control plane network element is an AF network element (where the AF can be AF in FIG. 2 to FIG. 5 ), the second control plane network element is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 ) ), then the communication method provided by the embodiment of the present application may be as shown in FIG. 11 , including the following steps:
S1101-S1109、与图9所示的实施例中步骤S901-S909相同，具体可参考图9所示的实施例，在此不再赘述。S1101-S1109 are the same as steps S901-S909 in the embodiment shown in FIG. 9 . For details, refer to the embodiment shown in FIG. 9 , and details are not repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1110-S1118所示的 第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1110-S1118:
S1110、SMF网元向AF网元发送授权请求(authorization request)。相应的，AF网元接收来自SMF网元的授权请求。其中，该授权请求用于请求授权第一终端设备使用第一MBS服务。该授权请求中包括第一MBS服务的标识和第一终端设备的标识。S1110. The SMF network element sends an authorization request (authorization request) to the AF network element. Correspondingly, the AF network element receives the authorization request from the SMF network element. Wherein, the authorization request is used for requesting to authorize the first terminal device to use the first MBS service. The authorization request includes the identifier of the first MBS service and the identifier of the first terminal device.
其中，步骤S1110的相关描述可参考图9所示的实施例中的步骤S910，区别比如在于：将步骤S910中的UDM/UDR网元替换为步骤S1010中的AF网元，在此不再赘述。For the description of step S1110, reference may be made to step S910 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S910 is replaced with the AF network element in step S1010, which will not be repeated here. .
S1111、AF网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S1111. The AF network element determines, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service. The authorization result includes authorization success or authorization failure.
示例性的，本申请实施例中，可以通过1比特指示授权结果，比如，“0”表示授权成功，“1”表示授权失败；或者，“1”表示授权成功，“0”表示授权失败等，本申请实施例对此不做具体限定。Exemplarily, in this embodiment of the present application, the authorization result may be indicated by 1 bit, for example, "0" indicates that the authorization is successful, and "1" indicates that the authorization fails; or, "1" indicates that the authorization is successful, and "0" indicates that the authorization fails, etc. , which is not specifically limited in the embodiments of the present application.
可选的，本申请实施例中，若AF网元确定第一终端设备使用第一MBS服务的授权成功，AF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识以及第一终端设备的标识；或者，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识、第一终端设备的标识、以及第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, if the AF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the AF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
S1112、AF网元向SMF网元发送授权响应(authorization response)。相应的，SMF网元接收来自AF网元的授权响应。其中，该授权响应包括上述授权结果以及第一MBS服务的标识。S1112. The AF network element sends an authorization response (authorization response) to the SMF network element. Correspondingly, the SMF network element receives the authorization response from the AF network element. Wherein, the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
其中，步骤S1112的相关描述可参考图9所示的实施例中的步骤S912，区别比如在于：将步骤S912中的UDM/UDR网元替换为步骤S1112中的AF网元，在此不再赘述。For the description of step S1112, reference may be made to step S912 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S912 is replaced with the AF network element in step S1112, which will not be repeated here. .
需要说明的是，本申请实施例中，当AF网元属于第三方时，AF网元与SMF网元之间需要通过NEF网元或者代理(Proxy)等网元进行交互，在此统一说明，以下不再赘述。It should be noted that, in the embodiment of this application, when the AF network element belongs to a third party, the interaction between the AF network element and the SMF network element needs to be performed through network elements such as NEF network element or proxy (Proxy). The following description will not be repeated.
S1113、SMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S1113. The SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or that the authorization fails.
进一步的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1114：Further, in the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1114:
S1114、SMF网元建立或更新第一终端设备的第一MBS服务的会话。S1114. The SMF network element establishes or updates the session of the first MBS service of the first terminal device.
其中，SMF网元建立或更新第一终端设备的第一MBS服务的会话的相关实现可参考图9所示的实施例中的步骤S914，在此不再赘述。For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
可选的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识以及第一终端设备的标识；或者，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识、第一终端设备的标识、以及第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权失败， 则本申请实施例提供的通信方法还可以包括下述步骤S1015：In the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1015:
S1115、SMF网元向第一终端设备发送指示信息1。相应的，第一终端设备接收来自SMF网元的指示信息1。该指示信息1用于指示授权第一终端设备使用第一MBS服务失败。S1115: The SMF network element sends indication information 1 to the first terminal device. Correspondingly, the first terminal device receives the indication information 1 from the SMF network element. The indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若SMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，SMF网元还可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, if the SMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the SMF network element also The session of the first MBS service of the first terminal device may be released, or the context of the PDU session related to the first MBS service of the first terminal device may be deleted (or deactivated), which is not specifically limited in this embodiment of the present application.
上述步骤S1110-S1115基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S1110-S1115 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括如步骤S1116-S1118所示的撤销第一终端设备使用第一MBS服务的授权的流程：Optionally, in the embodiment of the present application, after the authorization process of the first MBS service is completed, the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1116-S1118. Service authorization process:
S1116、AF网元确定撤销第一终端设备使用第一MBS服务的授权。S1116. The AF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
示例性的，本申请实施例中，AF网元确定撤销第一终端设备使用第一MBS服务的授权的条件包括以下任意一种：Exemplarily, in this embodiment of the present application, the conditions for the AF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
第一终端设备使用第一MBS服务的授权有效期结束；The validity period of the authorization for the first terminal device to use the first MBS service ends;
或者，第一MBS服务的授权信息发生变化。Or, the authorization information of the first MBS service is changed.
S1117、AF网元向SMF网元发送撤销请求消息。相应的，SMF网元接收来自AF网元的撤销请求消息。该撤销请求消息包括第一MBS服务的标识以及第一终端设备的标识，用于请求释放第一MBS服务相关的PDU会话、或者、删除(或去激活)第一MBS服务相关的PDU会话的上下文。S1117. The AF network element sends a revocation request message to the SMF network element. Correspondingly, the SMF network element receives the revocation request message from the AF network element. The revocation request message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request to release the PDU session related to the first MBS service, or delete (or deactivate) the context of the PDU session related to the first MBS service. .
其中，步骤S1117的相关描述可参考图9所示的实施例中的步骤S917，区别比如在于将步骤S917中的UDM/UDR网元替换为步骤S1117中的AF网元，在此不再赘述。For the description of step S1117, reference may be made to step S917 in the embodiment shown in FIG. 9 . The difference is, for example, that the UDM/UDR network element in step S917 is replaced with the AF network element in step S1117, which will not be repeated here.
S1118、SMF网元根据第一MBS服务的标识和第一终端设备的标识，撤销第一终端设备使用第一MBS服务的授权。S1118. The SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
其中，步骤S1118与图9所示的实施例中步骤S918相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1118 is the same as step S918 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。基于上述步骤S1116-S1118，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1116-S1118, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
需要说明的是，本申请实施例步骤S1110-S1115提供的第一终端设备使用第一MBS服务的授权流程与步骤S1116-S1118提供的撤销第一终端设备使用第一MBS服务的授权流程是相互独立的，可以相互解耦。也就是说，本申请实施例步骤S1110-S1115提供的第一终端设备使用第一MBS服务的授权流程也可以使用其他的撤销第一终端设备使用第一MBS服务的授权流程；或者，本申请实施例步骤S1116-S1118提供的撤销第一终端设备使用第一MBS服务的授权流程也可以使用其他的第一终端设备使用第一MBS服务的授权流程，本申请实施例对此不做具体限定。It should be noted that the authorization process for the first terminal device to use the first MBS service provided by steps S1110-S1115 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1116-S1118 are independent of each other. Yes, they can be decoupled from each other. That is to say, the authorization process for the first terminal device to use the first MBS service provided by steps S1110-S1115 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service; For example, the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1116-S1118 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
其中，上述步骤S1101至S1118中AF网元或者SMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该AF网元或者SMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the AF network element or the SMF network element in the above steps S1101 to S1118 can be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the AF network element or the SMF network element. Meta execution, this embodiment does not impose any restrictions on this.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，假设第一控制面网元为AF网元(这里的AF可以为图2至图5中的AF)，第二控制面网元为SMF网元(这里的SMF网元可以为图2或图3中的SMF，也可以为图4或图5中的MB-SMF)，则本申请实施例提供的通信方法可以如图12所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, it is assumed that the first control plane network element is an AF network element (where the AF can be AF in FIG. 2 to FIG. 5 ), the second control plane network element is an SMF network element (the SMF network element here may be the SMF in FIG. 2 or FIG. 3 , or the MB-SMF in FIG. 4 or FIG. 5 ) ), then the communication method provided by the embodiment of the present application may be as shown in FIG. 12 , including the following steps:
S1201-S1202、与图9所示的实施例中步骤S901-S902相同，具体可参考图9所示的实施例，在此不再赘述。S1201-S1202 are the same as steps S901-S902 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1203-S1209所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1203-S1209:
S1203、第一终端设备向AMF网元发送N1消息。相应的，AMF网元接收来自第一终端设备的N1消息。其中，N1消息用于请求建立(或修改)PDU会话、或用于请求使用第一MBS服务、或用于请求接收第一MBS服务的数据、或用于请求加入一个多播组、或用于请求激活第一MBS服务的上下文。S1203: The first terminal device sends an N1 message to the AMF network element. Correspondingly, the AMF network element receives the N1 message from the first terminal device. Wherein, the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service.
其中，步骤S1203与图9所示的实施例中步骤S903相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1203 is the same as step S903 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
S1204、AMF网元向UDM/UDR网元发送授权请求(authorization request)。相应的，UDM/UDR网元接收来自SMF网元的授权请求。其中，该授权请求用于请求授权第一终端设备使用第一MBS服务。S1204. The AMF network element sends an authorization request (authorization request) to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the authorization request from the SMF network element. Wherein, the authorization request is used for requesting to authorize the first terminal device to use the first MBS service.
S1205、UDM/UDR网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S1205. The UDM/UDR network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device. The authorization result includes authorization success or authorization failure.
S1206、UDM/UDR网元向AMF网元发送授权响应(authorization response)。相应的，AMF网元接收来自UDM/UDR网元的授权响应。其中，该授权响应包括上述授权结果以及第一MBS服务的标识。S1206, the UDM/UDR network element sends an authorization response (authorization response) to the AMF network element. Correspondingly, the AMF network element receives the authorization response from the UDM/UDR network element. Wherein, the authorization response includes the foregoing authorization result and the identifier of the first MBS service.
S1207、AMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S1207. The AMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
其中，步骤S1204-S1207的相关描述可参考图9所示的实施例中的步骤S910-S913，区别比如在于将步骤S910-S913中的SMF网元替换为步骤S1204-S1207中的AMF网元，在此不再赘述。For the description of steps S1204-S1207, reference may be made to steps S910-S913 in the embodiment shown in FIG. 9 , the difference is, for example, that the SMF network elements in steps S910-S913 are replaced with AMF network elements in steps S1204-S1207, It is not repeated here.
进一步的，本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1208：Further, in the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1208:
S1208、AMF网元向SMF网元发送消息2。相应的，SMF网元接收来自AMF网元的消息2。其中，消息2包括第一MBS服务的标识，用于请求创建(或修改)PDU会话、或者用于请求激活和创建第一MBS服务上下文。S1208, the AMF network element sends message 2 to the SMF network element. Correspondingly, the SMF network element receives the message 2 from the AMF network element. Wherein, the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
可选的，本申请实施例中，若N1消息包括S-NSSAI和/或DNN，则消息2中还可以包括N1消息中的S-NSSAI和/或DNN。Optionally, in this embodiment of the present application, if the N1 message includes the S-NSSAI and/or the DNN, the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
可选的，本申请实施例中的SMF网元可以为图2或图3所示的5G MBS架构中的 中的SMF，也可以是图4或图5所示的5G MBS架构中的中的MB-SMF，在此统一说明，以下不再赘述。Optionally, the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 . The MB-SMF is described in a unified manner here, and will not be repeated below.
本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1209：In the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1209:
S1209、AMF网元向第一终端设备发送指示信息2。相应的，第一终端设备接收来自AMF网元的指示信息2。该指示信息2用于指示授权第一终端设备使用第一MBS服务失败。S1209: The AMF network element sends indication information 2 to the first terminal device. Correspondingly, the first terminal device receives the indication information 2 from the AMF network element. The indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若AMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，AMF网元还可以释放第一终端设备的第一MBS服务的会话。Optionally, in this embodiment of the present application, if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
上述步骤S1203-S1209基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S1203-S1209 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括如步骤S1210-S1211所示的撤销第一终端设备使用第一MBS服务的授权的流程：Optionally, in this embodiment of the present application, after the above-mentioned authorization process for the first MBS service ends, the communication method provided in this embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1210-S1211. Service authorization process:
S1210、AMF网元确定撤销第一终端设备使用第一MBS服务的授权。S1210. The AMF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
示例性的，本申请实施例中，AMF网元确定撤销第一终端设备使用第一MBS服务的授权的条件包括以下任意一种：Exemplarily, in this embodiment of the present application, the conditions for the AMF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
第一终端设备使用第一MBS服务的授权有效期结束；或者，The validity period of the authorization for the first terminal device to use the first MBS service ends; or,
第一MBS服务的授权信息发生变化；或者，The authorization information for the first MBS service changes; or,
AMF网元接收到UDM/UDR网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权；或者，The AMF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service; or,
AMF网元接收到MBS-C/PCF/AF/NEF网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。The AMF network element receives a notification message from the MBS-C/PCF/AF/NEF network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first MBS Authorization of Services.
可选的，本申请实施例中，在AMF网元接收UDM/UDR网元的通知消息之前，AMF网元还可以向UDM/UDR网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。当然，UDM/UDR网元还可以进一步向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, before the AMF network element receives the notification message of the UDM/UDR network element, the AMF network element may also send a subscription message to the UDM/UDR network element, where the subscription message includes the identifier of the first MBS service. , which is used to request subscription to the first MBS service authorization change event. Of course, the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions.
可选的，本申请实施例中，在AMF网元接收MBS-C/PCF/AF/NEF网元的通知消息之前，AMF网元还可以向MBS-C/PCF/AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。当然，MBS-C/PCF还可以进一步向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件，本申请实施例对此不做具体限定。其中，第一MBS服务授权变更事件的示例可参考图9所示的实施例，在此不再赘述。Optionally, in this embodiment of the present application, before the AMF network element receives the notification message of the MBS-C/PCF/AF/NEF network element, the AMF network element may also send a subscription to the MBS-C/PCF/AF/NEF network element. message, the subscription message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service. Of course, the MBS-C/PCF may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request subscription to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions. For an example of the first MBS service authorization change event, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
需要说明的是，本申请实施例中，当AF网元属于第三方时，AF网元与UDM/UDR 网元之间，或者AF网元与MBS-C/PCF网元，或者AF网元与AMF网元之间需要通过NEF网元或者代理(Proxy)等网元进行交互，在此统一说明，以下不再赘述。It should be noted that, in this embodiment of the present application, when the AF network element belongs to a third party, the relationship between the AF network element and the UDM/UDR network element, or the AF network element and the MBS-C/PCF network element, or the AF network element and the The AMF network elements need to interact through network elements such as NEF network elements or proxies, which are described in a unified manner here, and will not be repeated below.
S1211、AMF网元根据第一MBS服务的标识和第一终端设备的标识，发起撤销第一终端设备使用第一MBS服务的授权。S1211. The AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
本申请实施例中，发起撤销第一终端设备使用第一MBS服务的授权可以理解为发起释放第一终端设备的第一MBS服务的会话，或者、发起删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，在此统一说明，以下不再赘述。In this embodiment of the present application, initiating to revoke the authorization of the first terminal device to use the first MBS service may be understood as initiating a session for releasing the first MBS service of the first terminal device, or initiating deletion (or deactivation) of the first terminal device's session. The context of the PDU session related to the first MBS service is uniformly described here, and will not be repeated below.
示例性的，本申请实施例中，AMF网元发起撤销第一终端设备使用第一MBS服务的授权包括以下至少一项：Exemplarily, in this embodiment of the present application, the AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service, including at least one of the following:
AMF网元向SMF网元发送请求消息，该请求消息用于请求释放第一终端设备的第一MBS服务的PDU会话，或者，The AMF network element sends a request message to the SMF network element, where the request message is used to request to release the PDU session of the first MBS service of the first terminal device, or,
AMF网元向SMF网元发送请求消息，该请求消息用于请求删除或去激活第一终端设备的第一MBS服务上下文；或者，The AMF network element sends a request message to the SMF network element, where the request message is used to request deletion or deactivation of the first MBS service context of the first terminal device; or,
AMF网元删除本地的第一终端设备的第一MBS服务上下文；或者，The AMF network element deletes the first MBS service context of the local first terminal device; or,
AMF网元向NG-RAN设备发送N2消息，该N2消息用于请求NG-RAN设备释放第一MBS服务对应的承载、或用于请求NG-RAN设备删除或去激活该第一MBS服务所对应的PDU会话的上下文。The AMF network element sends an N2 message to the NG-RAN device. The N2 message is used to request the NG-RAN device to release the bearer corresponding to the first MBS service, or to request the NG-RAN device to delete or deactivate the corresponding bearer of the first MBS service. The context of the PDU session.
可选的，本申请实施例中，在AMF网元发起撤销第一终端设备使用第一MBS服务的授权之前，需要根据接收到的第一MBS服务的标识和第一终端设备的标识，确定第一终端设备的第一MBS服务对应的PDU会话、或该PDU会话的标识、或者该PDU会话的上下文的标识，并在上述消息中携带第一终端设备的第一MBS服务对应的PDU会话、或该PDU会话的标识、或者该PDU会话的上下文的标识。当然，上述消息中还包括第一终端设备的标识，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, before the AMF network element initiates to revoke the authorization of the first terminal device to use the first MBS service, it is necessary to determine the first terminal device according to the received identifier of the first MBS service and the identifier of the first terminal device. The PDU session corresponding to the first MBS service of a terminal device, or the identifier of the PDU session, or the identifier of the context of the PDU session, and the above message carries the PDU session corresponding to the first MBS service of the first terminal device, or The identifier of the PDU session, or the identifier of the context of the PDU session. Of course, the above message also includes the identifier of the first terminal device, which is not specifically limited in this embodiment of the present application.
现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。基于上述步骤S1210-S1211，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1210-S1211, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
需要说明的是，本申请实施例步骤S1203-S1209提供的第一终端设备使用第一MBS服务的授权流程与步骤S1210-S1211提供的撤销第一终端设备使用第一MBS服务的授权流程是相互独立的，可以相互解耦。也就是说，本申请实施例步骤S1203-S1209提供的第一终端设备使用第一MBS服务的授权流程也可以使用其他的撤销第一终端设备使用第一MBS服务的授权流程；或者，本申请实施例步骤S1210-S1211提供的撤销第一终端设备使用第一MBS服务的授权流程也可以使用其他的第一终端设备使用第一MBS服务的授权流程，本申请实施例对此不做具体限定。It should be noted that the authorization process for the first terminal device to use the first MBS service provided by steps S1203-S1209 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1210-S1211 are independent of each other. Yes, they can be decoupled from each other. That is to say, the authorization process for the first terminal device to use the first MBS service provided by steps S1203-S1209 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service; For example, the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1210-S1211 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
其中，上述步骤S1201至S1211中UDM/UDR网元或者AMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者AMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the AMF network element in the above steps S1201 to S1211 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，本申请实施例还提供一种通信方法，如图13所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, the embodiment of the present application further provides a communication method, as shown in FIG. 13 , It includes the following steps:
S1301-S1309、与图9所示的实施例中步骤S901-S909相同，具体可参考图9所示的实施例，在此不再赘述。S1301-S1309 are the same as steps S901-S909 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1310-S1316所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1310-S1316:
S1310、SMF网元根据接收到的第一MBS服务的标识，确定本地是否存储第一MBS服务的签约数据。S1310. The SMF network element determines, according to the received identifier of the first MBS service, whether to store the subscription data of the first MBS service locally.
若SMF网元确定本地未存储第一MBS服务的签约数据，则执行步骤S1311-S1313后，继续执行下述步骤S1314；If the SMF network element determines that the subscription data of the first MBS service is not stored locally, after performing steps S1311-S1313, continue to perform the following step S1314;
若SMF网元确定本地已经存储第一MBS服务的签约数据，则跳过步骤S1311-S1313后执行下述步骤S1314。If the SMF network element determines that the subscription data of the first MBS service has been stored locally, the following step S1314 is executed after skipping steps S1311-S1313.
S1311、SMF网元向UDM/UDR网元发送请求消息1。相应的，UDM/UDR网元接收来自SMF网元的请求消息1。其中，该请求消息1包括第一MBS服务的标识，用于请求第一MBS服务相关的签约数据。S1311 , the SMF network element sends a request message 1 to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the request message 1 from the SMF network element. The request message 1 includes the identifier of the first MBS service, and is used to request subscription data related to the first MBS service.
可选的，本申请实施例中的请求消息1还可以包括指示信息3，指示信息3用于指示请求的签约数据为MBS服务的签约数据。示例性的，指示信息3可以为接收到的S-NSSAI和/或DNN。Optionally, the request message 1 in this embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service. Exemplarily, the indication information 3 may be the received S-NSSAI and/or DNN.
可选的，本申请实施例中的UDM/UDR网元可以为图2至图5任一5G MBS架构中的UDM/UDR网元，在此统一说明，以下不再赘述。Optionally, the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
S1312、UDM/UDR网元根据第一MBS服务的标识，查找第一MBS服务的签约数据。S1312. The UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
可选的，本申请实施例中，若上述请求消息1还可以包括指示信息3，则UDM/UDR网元可以根据指示信息3确定请求的签约数据为MBS服务的签约数据。Optionally, in this embodiment of the present application, if the above request message 1 may further include indication information 3, the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
S1313、UDM/UDR网元向SMF网元发送响应消息1。相应的，SMF网元接收来自UDM/UDR网元的响应消息1。S1313, the UDM/UDR network element sends a response message 1 to the SMF network element. Correspondingly, the SMF network element receives the response message 1 from the UDM/UDR network element.
其中，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据，则该响应消息1包括第一MBS服务的签约数据。若UDM/UDR网元查找不到第一MBS服务的签约数据，则该响应消息1可以包括指示信息4，指示信息4用于指示第一MBS服务的签约数据获取失败。Wherein, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service, the response message 1 includes the subscription data of the first MBS service. If the UDM/UDR network element cannot find the subscription data of the first MBS service, the response message 1 may include indication information 4, which is used to indicate that the acquisition of the subscription data of the first MBS service fails.
本申请实施例中，第一MBS服务的签约数据中包括第一MBS服务的授权信息，第一MBS服务的授权信息用于指示是否允许授权第一终端设备使用第一MBS服务。In the embodiment of the present application, the subscription data of the first MBS service includes authorization information of the first MBS service, and the authorization information of the first MBS service is used to indicate whether the first terminal device is allowed to use the first MBS service.
可选的，本申请实施例中，第一MBS服务的签约数据中包括第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, the subscription data of the first MBS service includes an authorization validity period for the first terminal device to use the first MBS service.
进一步的，本申请实施例中，若响应消息1包括指示信息4，则SMF网元可以根据指示信息4，确定授权第一终端设备使用第一MBS服务失败。若响应消息1包括第一MBS服务的签约数据，则进一步的，本申请实施例提供的通信方法还包括如下步骤S1314。Further, in the embodiment of the present application, if the response message 1 includes the indication information 4, the SMF network element may determine, according to the indication information 4, that authorizing the first terminal device to use the first MBS service fails. If the response message 1 includes the subscription data of the first MBS service, further, the communication method provided by the embodiment of the present application further includes the following step S1314.
S1314、SMF网元根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务。S1314. The SMF network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
一种可能的实现方式中，SMF网元根据第一MBS服务的签约数据，确定是否授 权第一终端设备使用第一MBS服务，包括：当第一MBS服务授权的信息指示不允许授权第一终端设备使用第一MBS服务时，SMF网元确定授权第一终端设备使用第一MBS服务失败；或者，当第一MBS服务授权的信息指示允许授权第一终端设备使用第一MBS服务时，SMF网元确定授权第一终端设备使用第一MBS服务成功。In a possible implementation manner, the SMF network element determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed. When the device uses the first MBS service, the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the SMF network It is determined that the authorization of the first terminal device to use the first MBS service is successful.
进一步的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1315：Further, in the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1315:
S1315、SMF网元建立或更新第一终端设备的第一MBS服务的会话。S1315. The SMF network element establishes or updates the session of the first MBS service of the first terminal device.
其中，SMF网元建立或更新第一终端设备的第一MBS服务的会话的相关实现可参考图9所示的实施例中的步骤S914，在此不再赘述。For the related implementation of the SMF network element establishing or updating the session of the first MBS service of the first terminal device, reference may be made to step S914 in the embodiment shown in FIG. 9 , and details are not repeated here.
可选的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识以及第一终端设备的标识；或者，SMF网元还可以向UDM/UDR网元发送该授权结果、第一MBS服务的标识、第一终端设备的标识、以及第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the SMF network element may also send the authorization result and the identifier of the first MBS service to the UDM/UDR network element. and the identity of the first terminal device; or, the SMF network element may also send the authorization result, the identity of the first MBS service, the identity of the first terminal device, and the use of the first MBS service by the first terminal device to the UDM/UDR network element Validity period of the authorization.
本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1316：In the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1316:
S1316、SMF网元向第一终端设备发送指示信息1。相应的，第一终端设备接收来自SMF网元的指示信息1。该指示信息1用于指示授权第一终端设备使用第一MBS服务失败。S1316: The SMF network element sends indication information 1 to the first terminal device. Correspondingly, the first terminal device receives the indication information 1 from the SMF network element. The indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若第一MBS服务的签约数据中包括第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，SMF网元还可以释放第一终端设备的第一MBS服务的会话，或者、删除(或去激活)第一终端设备的第一MBS服务相关的PDU会话的上下文，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, if the subscription data for the first MBS service includes an authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, The SMF network element may also release the session of the first MBS service of the first terminal device, or delete (or deactivate) the context of the PDU session related to the first MBS service of the first terminal device, which is not done in this embodiment of the present application Specific restrictions.
上述步骤S1310-S1316基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S1310-S1316 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括如步骤S1317-S1318所示的撤销第一终端设备使用第一MBS服务的授权的流程：Optionally, in the embodiment of the present application, after the authorization process of the first MBS service is completed, the communication method provided by the embodiment of the present application may further include revoking the use of the first MBS by the first terminal device as shown in steps S1317-S1318. Service authorization process:
S1317、SMF网元确定撤销第一终端设备使用第一MBS服务的授权。S1317. The SMF network element determines to revoke the authorization of the first terminal device to use the first MBS service.
示例性的，本申请实施例中，SMF网元确定撤销第一终端设备使用第一MBS服务的授权的条件包括以下任意一种：Exemplarily, in this embodiment of the present application, the conditions for the SMF network element to determine to revoke the authorization of the first terminal device to use the first MBS service include any of the following:
第一终端设备使用第一MBS服务的授权有效期结束；或者，The validity period of the authorization for the first terminal device to use the first MBS service ends; or,
第一MBS服务的授权信息发生变化；或者，The authorization information for the first MBS service changes; or,
SMF网元接收到来自MBS-C/PCF/AF/NEF网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权；或者，The SMF network element receives a notification message from the MBS-C/PCF/AF/NEF network element, the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the first terminal device to revoke the use of the first terminal device. Authorization for MBS Services; or,
SMF网元接收到来自UDM/UDR网元的通知消息，该通知消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授 权。The SMF network element receives a notification message from the UDM/UDR network element, where the notification message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the revocation of the authorization of the first terminal device to use the first MBS service.
可选的，本申请实施例中，在SMF网元接收UDM/UDR网元的通知消息之前，SMF网元还可以向UDM/UDR网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。当然，UDM/UDR网元还可以进一步向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, before the SMF network element receives the notification message of the UDM/UDR network element, the SMF network element may also send a subscription message to the UDM/UDR network element, where the subscription message includes the identifier of the first MBS service. , which is used to request subscription to the first MBS service authorization change event. Of course, the UDM/UDR network element may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request to subscribe to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions.
可选的，本申请实施例中，在SMF网元接收MBS-C/PCF/AF/NEF网元的通知消息之前，SMF网元还可以向MBS-C/PCF/AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。当然，MBS-C/PCF还可以进一步向AF/NEF网元发送订阅消息，该订阅消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件，本申请实施例对此不做具体限定。其中，第一MBS服务授权变更事件的示例可参考图9所示的实施例，在此不再赘述。Optionally, in this embodiment of the present application, before the SMF network element receives the notification message of the MBS-C/PCF/AF/NEF network element, the SMF network element may also send a subscription to the MBS-C/PCF/AF/NEF network element. message, the subscription message includes the identifier of the first MBS service, and is used to request subscription to the authorization change event of the first MBS service. Of course, the MBS-C/PCF may further send a subscription message to the AF/NEF network element, where the subscription message includes the identifier of the first MBS service and is used to request subscription to the authorization change event of the first MBS service, which is not covered in this embodiment of the present application. Make specific restrictions. For an example of the first MBS service authorization change event, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
需要说明的是，本申请实施例中，当AF网元属于第三方时，AF网元与UDM/UDR网元之间，或者AF网元与MBS-C/PCF网元，或者AF网元与SMF网元之间需要通过NEF网元或者代理(Proxy)等网元进行交互，在此统一说明，以下不再赘述。It should be noted that, in this embodiment of the present application, when the AF network element belongs to a third party, the relationship between the AF network element and the UDM/UDR network element, or the AF network element and the MBS-C/PCF network element, or the AF network element and the The interaction between SMF network elements needs to be performed through network elements such as NEF network elements or a proxy (Proxy), which is uniformly described here, and will not be repeated below.
S1318、SMF网元根据第一MBS服务的标识和第一终端设备的标识，撤销第一终端设备使用第一MBS服务的授权。S1318. The SMF network element revokes the authorization of the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device.
其中，步骤S1318与图9所示的实施例中步骤S918相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1318 is the same as step S918 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。基于上述步骤S1317-S1318，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. Based on the above steps S1317-S1318, the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture can be revoked, thereby avoiding the problem that the first MBS service is always used by the first terminal device.
需要说明的是，本申请实施例步骤S1310-S1316提供的第一终端设备使用第一MBS服务的授权流程与步骤S1317-S1318提供的撤销第一终端设备使用第一MBS服务的授权流程是相互独立的，可以相互解耦。也就是说，本申请实施例步骤S1310-S1316提供的第一终端设备使用第一MBS服务的授权流程也可以使用其他的撤销第一终端设备使用第一MBS服务的授权流程；或者，本申请实施例步骤S1317-S1318提供的撤销第一终端设备使用第一MBS服务的授权流程也可以使用其他的第一终端设备使用第一MBS服务的授权流程，本申请实施例对此不做具体限定。It should be noted that the authorization process for the first terminal device to use the first MBS service provided by steps S1310-S1316 in this embodiment of the present application and the authorization process for revoking the first terminal device to use the first MBS service provided by steps S1317-S1318 are independent of each other. Yes, they can be decoupled from each other. That is to say, the authorization process for the first terminal device to use the first MBS service provided by steps S1310-S1316 in this embodiment of the present application may also use other authorization processes for revoking the first terminal device to use the first MBS service; For example, the authorization process for revoking the first terminal device to use the first MBS service provided in steps S1317-S1318 may also use other authorization processes for the first terminal device to use the first MBS service, which is not specifically limited in this embodiment of the present application.
其中，上述步骤S1301至S1318中UDM/UDR网元或者SMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者SMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the SMF network element in the above steps S1301 to S1318 may be called by the processor 801 in the communication device 800 shown in FIG. 8 to the application code stored in the memory 803 to instruct the UDM/UDR network element. element or SMF network element, and this embodiment does not impose any limitation on this.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，本申请实施例还提供一种通信方法，如图14所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, the embodiment of the present application also provides a communication method, as shown in FIG. 14 , It includes the following steps:
S1401-S1409、与图9所示的实施例中步骤S901-S909相同，具体可参考图9所示的实施例，在此不再赘述。S1401-S1409 are the same as steps S901-S909 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1410-S1416所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by the embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1410-S1416:
S1410、SMF网元向UDM/UDR网元发送请求消息2。相应的，UDM/UDR网元接收来自SMF网元的请求消息2。其中，该请求消息2包括第一MBS服务的标识和第一终端设备的标识，用于请求第一MBS服务相关的签约数据。S1410. The SMF network element sends a request message 2 to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the request message 2 from the SMF network element. The request message 2 includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request subscription data related to the first MBS service.
可选的，本申请实施例中的请求消息2还可以包括指示信息3，指示信息3用于指示请求的签约数据为MBS服务的签约数据。示例性的，指示信息3可以为接收到的S-NSSAI和/或DNN。Optionally, the request message 2 in the embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service. Exemplarily, the indication information 3 may be the received S-NSSAI and/or DNN.
可选的，本申请实施例中的UDM/UDR网元可以为图2至图5任一5G MBS架构中的UDM/UDR网元，在此统一说明，以下不再赘述。Optionally, the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
可选的，本申请实施例中，在执行步骤S1410之前，SMF网元可以先根据接收到的第一MBS服务的标识，确定本地是否存储第一MBS服务的签约数据。在SMF网元确定本地未存储第一MBS服务的签约数据的情况下，再执行步骤S1410，本申请实施例对此不做具体限定。Optionally, in this embodiment of the present application, before step S1410 is performed, the SMF network element may first determine whether to store the subscription data of the first MBS service locally according to the received identifier of the first MBS service. In the case that the SMF network element determines that the subscription data of the first MBS service is not stored locally, step S1410 is performed again, which is not specifically limited in this embodiment of the present application.
S1411、UDM/UDR网元根据第一MBS服务的标识，查找第一MBS服务的签约数据。S1411. The UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
可选的，本申请实施例中，若上述请求消息2还可以包括指示信息3，则UDM/UDR网元可以根据指示信息3确定请求的签约数据为MBS服务的签约数据。Optionally, in this embodiment of the present application, if the above request message 2 may further include indication information 3, the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
其中，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据，则继续执行下述步骤S1412后再执行步骤S1413；否则，UDM/UDR网元确定第一终端设备使用第一MBS服务的授权结果为授权失败，跳过步骤S1412后执行步骤S1413。Wherein, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service, the following step S1412 is continued and then step S1413 is performed; otherwise, the UDM/UDR network element determines the first terminal device If the authorization result of using the first MBS service is that the authorization fails, step S1413 is executed after step S1412 is skipped.
S1412、UDM/UDR根据第一MBS服务的签约数据，确定第一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S1412. The UDM/UDR determines an authorization result for the first terminal device to use the first MBS service according to the subscription data of the first MBS service. The authorization result includes authorization success or authorization failure.
一种可能的实现方式中，UDM/UDR根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务，包括：当第一MBS服务授权的信息指示不允许授权第一终端设备使用第一MBS服务时，UDM/UDR确定授权第一终端设备使用第一MBS服务失败；或者，当第一MBS服务授权的信息指示允许授权第一终端设备使用第一MBS服务时，UDM/UDR网元确定授权第一终端设备使用第一MBS服务成功。In a possible implementation manner, the UDM/UDR determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed When the device uses the first MBS service, the UDM/UDR determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the UDM/UDR The UDR network element determines that the authorization of the first terminal device to use the first MBS service is successful.
S1413、UDM/UDR网元向SMF网元发送响应消息2。相应的，SMF网元接收来自UDM/UDR网元的响应消息2。其中，该响应消息2包括第一终端设备使用第一MBS服务的授权结果，授权结果包括授权成功或者授权失败。S1413, the UDM/UDR network element sends a response message 2 to the SMF network element. Correspondingly, the SMF network element receives the response message 2 from the UDM/UDR network element. The response message 2 includes an authorization result of using the first MBS service by the first terminal device, and the authorization result includes authorization success or authorization failure.
此外，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据或UDM/UDR网元确定授权第一终端设备使用第一MBS服务成功，则该响应消息2包括第一MBS服务的签约数据。In addition, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service or the UDM/UDR network element determines that the authorization of the first terminal device to use the first MBS service is successful, the response message 2 includes the first MBS service. A subscription data for the MBS service.
S1414、SMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S1414. The SMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or that the authorization fails.
进一步的，本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1415：Further, in the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1415:
S1415、SMF网元建立或更新第一终端设备的第一MBS服务的会话。其中，步骤S1415与图9所示的实施例中的步骤S914相同，相关描述可参考图9所示的实施例， 在此不再赘述。S1415. The SMF network element establishes or updates the session of the first MBS service of the first terminal device. Wherein, step S1415 is the same as step S914 in the embodiment shown in FIG. 9 , and the related description may refer to the embodiment shown in FIG. 9 , which will not be repeated here.
本申请实施例中，若SMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1416：In the embodiment of the present application, if the SMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1416:
S1416、SMF网元向第一终端设备发送指示信息1。相应的，第一终端设备接收来自SMF网元的指示信息1。该指示信息1用于指示授权第一终端设备使用第一MBS服务失败。其中，步骤S1416与图9所示的实施例中的步骤S915相同，相关描述可参考图9所示的实施例，在此不再赘述。S1416: The SMF network element sends indication information 1 to the first terminal device. Correspondingly, the first terminal device receives the indication information 1 from the SMF network element. The indication information 1 is used to indicate that authorizing the first terminal device to use the first MBS service fails. Wherein, step S1416 is the same as step S915 in the embodiment shown in FIG. 9 , and the related description may refer to the embodiment shown in FIG. 9 , which will not be repeated here.
上述步骤S910-S915基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S910-S915 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括撤销第一终端设备使用第一MBS服务的授权流程，具体可参考图9-图13任一实施例，本申请实施例在此不再赘述。当然，基于本申请实施例提供的第一终端设备使用第一MBS服务的授权流程，也可以采用其他的撤销第一终端设备使用第一MBS服务的授权流程撤销第一终端设备使用第一MBS服务，本申请实施例对此不做具体限定。Optionally, in the embodiment of the present application, after the authorization process for the first MBS service is completed, the communication method provided in the embodiment of the present application may further include revoking the authorization process for the first terminal device to use the first MBS service. For details, please refer to: 9 to 13 any of the embodiments, the embodiment of the present application will not be repeated here. Of course, based on the authorization process for the first terminal device to use the first MBS service provided in the embodiment of the present application, other authorization processes for revoking the first terminal device to use the first MBS service may also be used to revoke the first terminal device to use the first MBS service. , which is not specifically limited in the embodiments of the present application.
其中，上述步骤S1401至S1416中UDM/UDR网元或者SMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者SMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the SMF network element in the above steps S1401 to S1416 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or SMF network element, and this embodiment does not impose any limitation on this.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，本申请实施例还提供一种通信方法，如图15所示，包括如下步骤：Optionally, taking the communication system shown in FIG. 6 or FIG. 7 applied to any 5G MBS architecture shown in FIG. 2 to FIG. 5 as an example, the embodiment of the present application further provides a communication method, as shown in FIG. 15 , It includes the following steps:
S1501-S1502、与图9所示的实施例中步骤S901-S902相同，具体可参考图9所示的实施例，在此不再赘述。S1501-S1502 are the same as steps S901-S902 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , and details are not repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1503-S1510所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by this embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1503-S1510:
S1503、第一终端设备向AMF网元发送N1消息。相应的，AMF网元接收来自第一终端设备的N1消息。其中，N1消息用于请求建立(或修改)PDU会话、或用于请求使用第一MBS服务、或用于请求接收第一MBS服务的数据、或用于请求加入一个多播组、或用于请求激活第一MBS服务的上下文。S1503: The first terminal device sends an N1 message to the AMF network element. Correspondingly, the AMF network element receives the N1 message from the first terminal device. Wherein, the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service.
其中，步骤S1503与图9所示的实施例中步骤S903相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1503 is the same as step S903 in the embodiment shown in FIG. 9 , for details, reference may be made to the embodiment shown in FIG. 9 , and details are not repeated here.
S1504、AMF网元向UDM/UDR网元发送请求消息3。相应的，UDM/UDR网元接收来自AMF网元的请求消息3。其中，该请求消息3包括第一MBS服务的标识和第一终端设备的标识，用于请求第一MBS服务相关的签约数据。S1504, the AMF network element sends a request message 3 to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the request message 3 from the AMF network element. The request message 3 includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request subscription data related to the first MBS service.
可选的，本申请实施例中的请求消息3还可以包括指示信息3，指示信息3用于指示请求的签约数据为MBS服务的签约数据。示例性的，指示信息3可以为接收到的S-NSSAI和/或DNN。Optionally, the request message 3 in the embodiment of the present application may further include indication information 3, where the indication information 3 is used to indicate that the requested subscription data is subscription data of the MBS service. Exemplarily, the indication information 3 may be the received S-NSSAI and/or DNN.
可选的，本申请实施例中的UDM/UDR网元可以为图2至图5任一5G MBS架构中的UDM/UDR网元，在此统一说明，以下不再赘述。Optionally, the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
S1505、UDM/UDR网元根据第一MBS服务的标识，查找第一MBS服务的签约 数据。S1505. The UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
可选的，本申请实施例中，若上述请求消息3还可以包括指示信息3，则UDM/UDR网元可以根据指示信息3确定请求的签约数据为MBS服务的签约数据。Optionally, in this embodiment of the present application, if the above request message 3 may further include indication information 3, the UDM/UDR network element may determine, according to indication information 3, that the requested subscription data is subscription data of the MBS service.
其中，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据，则继续执行下述步骤S1506后再执行步骤S1507；否则，UDM/UDR网元确定第一终端设备使用第一MBS服务的授权结果为授权失败，跳过步骤S1506后执行步骤S1507。Wherein, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service, the following step S1506 is continued and then step S1507 is performed; otherwise, the UDM/UDR network element determines the first terminal device If the authorization result of using the first MBS service is that the authorization fails, step S1507 is executed after step S1506 is skipped.
S1506、UDM/UDR根据第一MBS服务的签约数据，确定第一终端设备使用第一MBS服务的授权结果。授权结果包括授权成功或者授权失败。S1506. The UDM/UDR determines an authorization result for the first terminal device to use the first MBS service according to the subscription data of the first MBS service. The authorization result includes authorization success or authorization failure.
其中，步骤S1506与图14所示的实施例中步骤S1412相同，具体可参考图9所示的实施例，在此不再赘述。Wherein, step S1506 is the same as step S1412 in the embodiment shown in FIG. 14 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
S1507、UDM/UDR网元向AMF网元发送响应消息3。相应的，AMF网元接收来自UDM/UDR网元的响应消息3。其中，该响应消息3包括第一终端设备的标识以及第一终端设备使用第一MBS服务的授权结果，授权结果包括授权成功或者授权失败。S1507, the UDM/UDR network element sends a response message 3 to the AMF network element. Correspondingly, the AMF network element receives the response message 3 from the UDM/UDR network element. Wherein, the response message 3 includes the identifier of the first terminal device and the authorization result of the first terminal device using the first MBS service, and the authorization result includes authorization success or authorization failure.
此外，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据或UDM/UDR网元确定授权第一终端设备使用第一MBS服务成功，则该响应消息3包括第一MBS服务的签约数据。In addition, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service or the UDM/UDR network element determines that the authorization of the first terminal device to use the first MBS service is successful, the response message 3 includes the first MBS service. A subscription data for the MBS service.
S1508、AMF网元根据授权结果以及第一MBS服务的标识，确定第一终端设备使用第一MBS服务的授权成功或授权失败。S1508. The AMF network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first terminal device to use the first MBS service is successful or unsuccessful.
进一步的，本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1509：Further, in the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1509:
S1509、AMF网元向SMF网元发送消息2。相应的，SMF网元接收来自AMF网元的消息2。其中，消息2包括第一MBS服务的标识，用于请求创建(或修改)PDU会话、或者用于请求激活和创建第一MBS服务上下文。S1509, the AMF network element sends message 2 to the SMF network element. Correspondingly, the SMF network element receives the message 2 from the AMF network element. Wherein, the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
可选的，本申请实施例中，若N1消息包括S-NSSAI和/或DNN，则消息2中还可以包括N1消息中的S-NSSAI和/或DNN。Optionally, in this embodiment of the present application, if the N1 message includes the S-NSSAI and/or the DNN, the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
可选的，本申请实施例中的SMF网元可以为图2或图3所示的5G MBS架构中的中的SMF，也可以是图4或图5所示的5G MBS架构中的中的MB-SMF，在此统一说明，以下不再赘述。Optionally, the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 . The MB-SMF is described in a unified manner here, and will not be repeated below.
本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1510：In the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1510:
S1510、AMF网元向第一终端设备发送指示信息2。相应的，第一终端设备接收来自AMF网元的指示信息2。该指示信息2用于指示授权第一终端设备使用第一MBS服务失败。S1510. The AMF network element sends indication information 2 to the first terminal device. Correspondingly, the first terminal device receives the indication information 2 from the AMF network element. The indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若AMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，AMF网元还可以释放第一终端设备的第一MBS服务的会话。Optionally, in this embodiment of the present application, if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
上述步骤S1503-S1510基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权。The above steps S1503-S1510 are based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括撤销第一终端设备使用第一MBS服务的授权流程，具体可参考图9-图13任一实施例，本申请实施例在此不再赘述。当然，基于本申请实施例提供的第一终端设备使用第一MBS服务的授权流程，也可以采用其他的撤销第一终端设备使用第一MBS服务的授权流程撤销第一终端设备使用第一MBS服务，本申请实施例对此不做具体限定。Optionally, in the embodiment of the present application, after the authorization process for the first MBS service is completed, the communication method provided in the embodiment of the present application may further include revoking the authorization process for the first terminal device to use the first MBS service. For details, please refer to: 9 to 13 any of the embodiments, the embodiment of the present application will not be repeated here. Of course, based on the authorization process for the first terminal device to use the first MBS service provided in the embodiment of the present application, other authorization processes for revoking the first terminal device to use the first MBS service may also be used to revoke the first terminal device to use the first MBS service. , which is not specifically limited in the embodiments of the present application.
其中，上述步骤S1501至S1510中UDM/UDR网元或者AMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者AMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the AMF network element in the above steps S1501 to S1510 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
可选的，以图6或图7所示的通信***应用于图2至图5所示的任一5G MBS架构为例，本申请实施例还提供一种通信方法，如图16所示，包括如下步骤：Optionally, taking the application of the communication system shown in FIG. 6 or FIG. 7 to any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 as an example, an embodiment of the present application further provides a communication method, as shown in FIG. 16 , It includes the following steps:
S1601-S1602、与图9所示的实施例中步骤S901-S902相同，具体可参考图9所示的实施例，在此不再赘述。S1601-S1602 are the same as steps S901-S902 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
进一步的，本申请实施例提供的通信方法还可以包括如步骤S1603-S1610所示的第一终端设备使用第一MBS服务的授权流程：Further, the communication method provided by this embodiment of the present application may further include an authorization process for the first terminal device to use the first MBS service as shown in steps S1603-S1610:
S1603、第一终端设备向AMF网元发送N1消息。相应的，AMF网元接收来自第一终端设备的N1消息。其中，N1消息用于请求建立(或修改)PDU会话、或用于请求使用第一MBS服务、或用于请求接收第一MBS服务的数据、或用于请求加入一个多播组、或用于请求激活第一MBS服务的上下文。其中，步骤S1603与图9所示的实施例中步骤S903相同，具体可参考图9所示的实施例，在此不再赘述。S1603: The first terminal device sends an N1 message to the AMF network element. Correspondingly, the AMF network element receives the N1 message from the first terminal device. Wherein, the N1 message is used for requesting to establish (or modify) a PDU session, or for requesting to use the first MBS service, or for requesting to receive data of the first MBS service, or for requesting to join a multicast group, or for requesting to join a multicast group, or for A context for requesting activation of the first MBS service. Wherein, step S1603 is the same as step S903 in the embodiment shown in FIG. 9 . For details, reference may be made to the embodiment shown in FIG. 9 , which will not be repeated here.
S1604、AMF网元根据接收到的第一MBS服务的标识，确定本地是否存储第一MBS服务的签约数据。S1604. The AMF network element determines, according to the received identifier of the first MBS service, whether to store the subscription data of the first MBS service locally.
若AMF网元确定本地未存储第一MBS服务的签约数据，则执行步骤S1605-S1607后，继续执行下述步骤S1608；If the AMF network element determines that the subscription data of the first MBS service is not stored locally, after performing steps S1605-S1607, the following step S1608 is continued;
若AMF网元确定本地已经存储第一MBS服务的签约数据，则跳过步骤S1605-S1607后执行下述步骤S1608。If the AMF network element determines that the subscription data of the first MBS service has been stored locally, the following step S1608 is executed after skipping steps S1605-S1607.
S1605、AMF网元向UDM/UDR网元发送请求消息4。相应的，UDM/UDR网元接收来自SMF网元的请求消息4。其中，该请求消息4包括第一MBS服务的标识，用于请求第一MBS服务相关的签约数据。S1605, the AMF network element sends a request message 4 to the UDM/UDR network element. Correspondingly, the UDM/UDR network element receives the request message 4 from the SMF network element. The request message 4 includes the identifier of the first MBS service, and is used to request subscription data related to the first MBS service.
可选的，本申请实施例中的请求消息4还可以包括指示信息5，指示信息5用于指示请求的签约数据为MBS服务的签约数据。示例性的，指示信息5可以为接收到的S-NSSAI和/或DNN。Optionally, the request message 4 in this embodiment of the present application may further include indication information 5, where the indication information 5 is used to indicate that the requested subscription data is subscription data of the MBS service. Exemplarily, the indication information 5 may be the received S-NSSAI and/or DNN.
可选的，本申请实施例中的UDM/UDR网元可以为图2至图5任一5G MBS架构中的UDM/UDR网元，在此统一说明，以下不再赘述。Optionally, the UDM/UDR network element in this embodiment of the present application may be a UDM/UDR network element in any of the 5G MBS architectures shown in FIG. 2 to FIG. 5 , which is uniformly described here, and will not be repeated below.
S1606、UDM/UDR网元根据第一MBS服务的标识，查找第一MBS服务的签约数据。S1606. The UDM/UDR network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
可选的，本申请实施例中，若上述请求消息4还可以包括指示信息5，则UDM/UDR网元可以根据指示信息5确定请求的签约数据为MBS服务的签约数据。Optionally, in this embodiment of the present application, if the above request message 4 may further include indication information 5, the UDM/UDR network element may determine, according to the indication information 5, that the requested subscription data is subscription data of the MBS service.
S1607、UDM/UDR网元向AMF网元发送响应消息4。相应的，AMF网元接收来 自UDM/UDR网元的响应消息4。S1607, the UDM/UDR network element sends a response message 4 to the AMF network element. Correspondingly, the AMF network element receives the response message 4 from the UDM/UDR network element.
其中，本申请实施例中，若UDM/UDR网元可以查找到第一MBS服务的签约数据，则该响应消息4包括第一MBS服务的签约数据。若UDM/UDR网元查找不到第一MBS服务的签约数据，则该响应消息4可以包括指示信息6，指示信息6用于指示第一MBS服务的签约数据获取失败。Wherein, in the embodiment of the present application, if the UDM/UDR network element can find the subscription data of the first MBS service, the response message 4 includes the subscription data of the first MBS service. If the UDM/UDR network element cannot find the subscription data of the first MBS service, the response message 4 may include indication information 6, and the indication information 6 is used to indicate that the acquisition of the subscription data of the first MBS service fails.
本申请实施例中，第一MBS服务的签约数据中包括第一MBS服务的授权信息，第一MBS服务的授权信息用于指示是否允许授权第一终端设备使用第一MBS服务。In the embodiment of the present application, the subscription data of the first MBS service includes authorization information of the first MBS service, and the authorization information of the first MBS service is used to indicate whether the first terminal device is allowed to use the first MBS service.
可选的，本申请实施例中，第一MBS服务的签约数据中包括第一终端设备使用第一MBS服务的授权有效期。Optionally, in this embodiment of the present application, the subscription data of the first MBS service includes an authorization validity period for the first terminal device to use the first MBS service.
进一步的，本申请实施例中，若响应消息4包括指示信息6，则AMF网元可以根据指示信息6，确定授权第一终端设备使用第一MBS服务失败。若响应消息4包括第一MBS服务的签约数据，则进一步的，本申请实施例提供的通信方法还包括如下步骤S1608：Further, in this embodiment of the present application, if the response message 4 includes the indication information 6, the AMF network element may determine, according to the indication information 6, that authorizing the first terminal device to use the first MBS service fails. If the response message 4 includes the subscription data of the first MBS service, further, the communication method provided by the embodiment of the present application further includes the following step S1608:
S1608、AMF网元根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务。S1608. The AMF network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
一种可能的实现方式中，AMF网元根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务，包括：当第一MBS服务授权的信息指示不允许授权第一终端设备使用第一MBS服务时，AMF网元确定授权第一终端设备使用第一MBS服务失败；或者，当第一MBS服务授权的信息指示允许授权第一终端设备使用第一MBS服务时，AMF网元确定授权第一终端设备使用第一MBS服务成功。In a possible implementation manner, the AMF network element determines whether to authorize the first terminal device to use the first MBS service according to the subscription data of the first MBS service, including: when the first MBS service authorization information indicates that authorization of the first terminal is not allowed When the device uses the first MBS service, the AMF network element determines that the authorization of the first terminal device to use the first MBS service fails; or, when the information of the first MBS service authorization indicates that the authorization of the first terminal device to use the first MBS service is allowed, the AMF network It is determined that the authorization of the first terminal device to use the first MBS service is successful.
进一步的，本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权成功，则本申请实施例提供的通信方法还可以包括下述步骤S1609：Further, in the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service is successful, the communication method provided by the embodiment of the present application may further include the following step S1609:
S1609、AMF网元向SMF网元发送消息2。相应的，SMF网元接收来自AMF网元的消息2。其中，消息2包括第一MBS服务的标识，用于请求创建(或修改)PDU会话、或者用于请求激活和创建第一MBS服务上下文。S1609, the AMF network element sends message 2 to the SMF network element. Correspondingly, the SMF network element receives the message 2 from the AMF network element. Wherein, the message 2 includes the identifier of the first MBS service, and is used for requesting to create (or modify) a PDU session, or for requesting to activate and create a first MBS service context.
可选的，本申请实施例中，若N1消息包括S-NSSAI和/或DNN，则消息2中还可以包括N1消息中的S-NSSAI和/或DNN。Optionally, in this embodiment of the present application, if the N1 message includes the S-NSSAI and/or the DNN, the message 2 may further include the S-NSSAI and/or the DNN in the N1 message.
可选的，本申请实施例中的SMF网元可以为图2或图3所示的5G MBS架构中的中的SMF，也可以是图4或图5所示的5G MBS架构中的中的MB-SMF，在此统一说明，以下不再赘述。Optionally, the SMF network element in the embodiment of the present application may be the SMF in the 5G MBS architecture shown in FIG. 2 or FIG. 3 , or the SMF in the 5G MBS architecture shown in FIG. 4 or FIG. 5 . The MB-SMF is described in a unified manner here, and will not be repeated below.
本申请实施例中，若AMF网元确定第一终端设备使用第一MBS服务的授权失败，则本申请实施例提供的通信方法还可以包括下述步骤S1610：In the embodiment of the present application, if the AMF network element determines that the authorization of the first terminal device to use the first MBS service fails, the communication method provided by the embodiment of the present application may further include the following step S1610:
S1610、AMF网元向第一终端设备发送指示信息2。相应的，第一终端设备接收来自AMF网元的指示信息2。该指示信息2用于指示授权第一终端设备使用第一MBS服务失败。S1610: The AMF network element sends indication information 2 to the first terminal device. Correspondingly, the first terminal device receives the indication information 2 from the AMF network element. The indication information 2 is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，本申请实施例中，若AMF网元接收到第一终端设备使用第一MBS服务的授权有效期，则在第一终端设备使用第一MBS服务的授权有效期结束后，AMF网元还可以释放第一终端设备的第一MBS服务的会话。Optionally, in this embodiment of the present application, if the AMF network element receives the authorization validity period for the first terminal device to use the first MBS service, after the authorization validity period for the first terminal device to use the first MBS service ends, the AMF network element also The session of the first MBS service of the first terminal device may be released.
上述步骤S1603-S1610基于5G MBS架构中的流程，在该流程中实现了第一终端 设备使用第一MBS服务的授权。The above-mentioned steps S1603-S1610 are based on the flow in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized.
可选的，本申请实施例中，在上述第一MBS服务的授权流程结束之后，本申请实施例提供的通信方法还可以包括撤销第一终端设备使用第一MBS服务的授权流程，具体可参考图9-图13任一实施例，本申请实施例在此不再赘述。当然，基于本申请实施例提供的第一终端设备使用第一MBS服务的授权流程，也可以采用其他的撤销第一终端设备使用第一MBS服务的授权流程撤销第一终端设备使用第一MBS服务，本申请实施例对此不做具体限定。Optionally, in the embodiment of the present application, after the authorization process for the first MBS service is completed, the communication method provided in the embodiment of the present application may further include revoking the authorization process for the first terminal device to use the first MBS service. For details, please refer to: 9 to 13 any of the embodiments, the embodiment of the present application will not be repeated here. Of course, based on the authorization process for the first terminal device to use the first MBS service provided in the embodiment of the present application, other authorization processes for revoking the first terminal device to use the first MBS service may also be used to revoke the first terminal device to use the first MBS service. , which is not specifically limited in the embodiments of the present application.
其中，上述步骤S1601至S1610中UDM/UDR网元或者AMF网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该UDM/UDR网元或者AMF网元执行，本实施例对此不作任何限制。Wherein, the actions of the UDM/UDR network element or the AMF network element in the above steps S1601 to S1610 may be invoked by the processor 801 in the communication device 800 shown in FIG. 8 by calling the application code stored in the memory 803 to instruct the UDM/UDR network element element or AMF network element, which is not limited in this embodiment.
如图17所示，为本申请实施例提供的一种通信方法，该方法包括：As shown in FIG. 17 , a communication method provided by an embodiment of the present application includes:
S1701、第二控制面网元向第一控制面网元发送第一消息。相应的，第一控制面网元接收来自第二控制面网元的第一消息。第一消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务。S1701. The second control plane network element sends a first message to the first control plane network element. Correspondingly, the first control plane network element receives the first message from the second control plane network element. The first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service.
S1702、第一控制面网元根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，该授权结果包括授权成功或授权失败。S1702. The first control plane network element determines an authorization result for the first terminal device to use the first MBS service according to the identifier of the first MBS service and the identifier of the first terminal device, where the authorization result includes authorization success or authorization failure.
S1703、第一控制面网元向第二控制面网元发送第一MBS服务的标识和授权结果。相应的，第二控制面网元接收来自第一控制面网元的第一MBS服务的标识和授权结果。S1703. The first control plane network element sends the identifier of the first MBS service and the authorization result to the second control plane network element. Correspondingly, the second control plane network element receives the identification and authorization result of the first MBS service from the first control plane network element.
S1704、第二控制面网元根据授权结果以及第一MBS服务的标识，确定第一终端设备的第一MBS服务授权成功或授权失败。S1704. The network element of the second control plane determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first MBS service of the first terminal device is successful or that the authorization fails.
对于上述步骤S1701-S1704：For the above steps S1701-S1704:
一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图9或图14所示的实施例中的UDM/UDR网元，第二控制面网元例如可以为图9或图14所示的实施例中的SMF网元，第一消息例如可以为图9所示的实施例步骤S910中的授权请求或者图14所示的实施例步骤S1410中的请求消息2。In a possible implementation manner, the first control plane network element in the embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 9 or FIG. 14 , and the second control plane network element may be, for example, For the SMF network element in the embodiment shown in FIG. 9 or FIG. 14 , the first message may be, for example, the authorization request in step S910 in the embodiment shown in FIG. 9 or the request message 2 in step S1410 in the embodiment shown in FIG. 14 . .
另一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图10所示的实施例中的MBS-C/PCF网元，第二控制面网元例如可以为图10所示的实施例中的SMF网元，第一消息例如可以为图10所示的实施例步骤S1010中的授权请求。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the MBS-C/PCF network element in the embodiment shown in FIG. 10 , and the second control plane network element may be, for example, For the SMF network element in the embodiment shown in FIG. 10 , the first message may be, for example, the authorization request in step S1010 of the embodiment shown in FIG. 10 .
又一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图11所示的实施例中的AF网元，第二控制面网元例如可以为图11所示的实施例中的SMF网元，第一消息例如可以为图11所示的实施例步骤S1110中的授权请求。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the AF network element in the embodiment shown in FIG. 11 , and the second control plane network element may be, for example, the one shown in FIG. 11 . For the SMF network element in the embodiment shown in FIG. 11 , the first message may be, for example, the authorization request in step S1110 of the embodiment shown in FIG. 11 .
又一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图12所示的实施例中的UDM/UDR网元，第二控制面网元例如可以为图12所示的实施例中的AMF网元，第一消息例如可以为图12所示的实施例步骤S1204中的授权请求。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 12 , and the second control plane network element may be, for example, FIG. 12 . For the AMF network element in the embodiment shown, the first message may be, for example, the authorization request in step S1204 of the embodiment shown in FIG. 12 .
其中，图17所示的实施例的具体实现可参考上述图9、图10、图11、图12或图14所示的实施例，在此不再赘述。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。The specific implementation of the embodiment shown in FIG. 17 may refer to the embodiment shown in FIG. 9 , FIG. 10 , FIG. 11 , FIG. 12 or FIG. 14 , which is not repeated here. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
其中，上述步骤S1701至S1704中第一控制面网元或者第二控制面网元的动作可 以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该第一控制面网元或者第二控制面网元执行，本实施例对此不作任何限制。Wherein, the actions of the first control plane network element or the second control plane network element in the above steps S1701 to S1704 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the The first control plane network element or the second control plane network element executes this, which is not limited in this embodiment.
如图18所示，为本申请实施例提供的另一种通信方法，该方法包括：As shown in FIG. 18, another communication method provided by this embodiment of the present application includes:
S1801、第一控制面网元确定撤销第一终端设备使用第一MBS服务的授权。S1801. The first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service.
S1802、第一控制面网元向会话管理网元发送第一消息。相应的，会话管理网元接收来自第一控制面网元的第一消息。该第一消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。S1802. The first control plane network element sends a first message to the session management network element. Correspondingly, the session management network element receives the first message from the first control plane network element. The first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
S1803、会话管理网元释放第一终端设备的第一MBS服务的会话。S1803. The session management network element releases the session of the first MBS service of the first terminal device.
对于上述步骤S1801-S1803：For the above steps S1801-S1803:
一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图9所示的实施例中的UDM/UDR网元，第一消息例如可以为图9所示的实施例步骤S917中的撤销请求请求。In a possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the UDM/UDR network element in the embodiment shown in FIG. 9 , and the first message may be, for example, the implementation shown in FIG. 9 . An example is the revocation request request in step S917.
另一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图10所示的实施例中的MBS-C/PCF网元，第一消息例如可以为图10所示的实施例步骤S1017中的撤销请求请求。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the MBS-C/PCF network element in the embodiment shown in FIG. 10 , and the first message may be, for example, the one shown in FIG. 10 . In the illustrated embodiment, the revocation request request in step S1017.
又一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图11所示的实施例中的AF网元，第一消息例如可以为图11所示的实施例步骤S1117中的撤销请求请求。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the AF network element in the embodiment shown in FIG. 11 , and the first message may be, for example, the embodiment shown in FIG. 11 . Revocation request request in step S1117.
又一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图12所示的实施例中的AMF网元，第一消息例如可以为图12所示的实施例步骤S1211中AMF网元发起撤销第一终端设备使用第一MBS服务的授权流程时与SMF网元交互的消息。In another possible implementation manner, the first control plane network element in the embodiment of the present application may be, for example, the AMF network element in the embodiment shown in FIG. 12 , and the first message may be, for example, the embodiment shown in FIG. 12 . In step S1211, the AMF network element initiates a message exchanged with the SMF network element when the authorization procedure for revoking the first terminal device to use the first MBS service is initiated.
其中，图18所示的实施例的具体实现可参考上述图9、图10、图11或图12所示的实施例，在此不再赘述。现有的3G/4GMBMS架构没有定义终端设备使用MBS服务授权的撤销机制，导致一个终端设备一旦被授权，就一会一直拥有使用MBS服务的权限。本申请实施例提供的通信方法基于5G MBS架构，引入了撤销MBS服务授权的机制，可以撤销5G MBS架构下第一终端设备使用第一MBS服务的授权，从而避免了第一MBS服务被第一终端设备一直使用的问题。For the specific implementation of the embodiment shown in FIG. 18 , reference may be made to the embodiment shown in FIG. 9 , FIG. 10 , FIG. 11 or FIG. 12 , which will not be repeated here. The existing 3G/4GMBMS architecture does not define a revocation mechanism for terminal equipment to use the MBS service authorization, so that once a terminal equipment is authorized, it will always have the right to use the MBS service for a while. The communication method provided by the embodiment of the present application is based on the 5G MBS architecture, and introduces a mechanism for revoking the authorization of the MBS service, which can revoke the authorization of the first terminal device to use the first MBS service under the 5G MBS architecture, thereby avoiding the first MBS service being used by the first terminal device. The problem that the terminal equipment has been used all the time.
其中，上述步骤S1801至S1803中第一控制面网元或者会话管理网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该第一控制面网元或者会话管理网元执行，本实施例对此不作任何限制。The actions of the first control plane network element or session management network element in the above steps S1801 to S1803 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the first The control plane network element or the session management network element executes this, which is not limited in this embodiment.
如图19所示，为本申请实施例提供的另一种通信方法，该方法包括：As shown in FIG. 19, another communication method provided by this embodiment of the present application includes:
S1901、第一控制面网元向第二控制面网元发送第一消息。相应的，第二控制面网元接收来自第一控制面网元的第一消息。该第一消息包括第一MBS服务的标识，用于请求获取第一MBS服务的签约数据。S1901. The first control plane network element sends a first message to the second control plane network element. Correspondingly, the second control plane network element receives the first message from the first control plane network element. The first message includes the identifier of the first MBS service, and is used for requesting to acquire subscription data of the first MBS service.
S1902、第二控制面网元根据第一MBS服务的标识，查找第一MBS服务的签约数据。S1902. The second control plane network element searches for the subscription data of the first MBS service according to the identifier of the first MBS service.
S1903、第二控制面网元向第一控制面网元发送第一MBS服务的签约数据，该签约数据中包括第一MBS服务授权的信息。S1903. The second control plane network element sends subscription data of the first MBS service to the first control plane network element, where the subscription data includes information on authorization of the first MBS service.
S1904、第一控制面网元根据第一MBS服务的签约数据，确定是否授权第一终端设备使用第一MBS服务。S1904. The first control plane network element determines, according to the subscription data of the first MBS service, whether to authorize the first terminal device to use the first MBS service.
对于上述步骤S1901-S1904：For the above steps S1901-S1904:
一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图13所示的实施例中的SMF网元，第二控制面网元例如可以为图13所示的实施例中的UDM/UDR网元，第一消息例如可以为图13所示的实施例步骤S1311中的请求消息1。In a possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the SMF network element in the embodiment shown in FIG. 13 , and the second control plane network element may be, for example, the one shown in FIG. 13 . For the UDM/UDR network element in the embodiment, the first message may be, for example, the request message 1 in step S1311 of the embodiment shown in FIG. 13 .
另一种可能的实现方式中，本申请实施例中的第一控制面网元例如可以为图16所示的实施例中的AMF网元，第二控制面网元例如可以为图13所示的实施例中的UDM/UDR网元，第一消息例如可以为图16所示的实施例步骤S1605中的请求消息4。In another possible implementation manner, the first control plane network element in this embodiment of the present application may be, for example, the AMF network element in the embodiment shown in FIG. 16 , and the second control plane network element may be, for example, the one shown in FIG. 13 . For the UDM/UDR network element in the embodiment shown in FIG. 16 , the first message may be, for example, the request message 4 in step S1605 of the embodiment shown in FIG. 16 .
其中，图19所示的实施例的具体实现可参考上述图13或图16所示的实施例，在此不再赘述。该方案基于5G MBS架构中的流程，在该流程中实现了第一终端设备使用第一MBS服务的授权，因此基于该方案，可以实现5G MBS架构下终端设备的MBS服务授权。For the specific implementation of the embodiment shown in FIG. 19 , reference may be made to the embodiment shown in FIG. 13 or FIG. 16 , which will not be repeated here. This solution is based on the process in the 5G MBS architecture, in which the authorization of the first terminal device to use the first MBS service is realized. Therefore, based on this solution, the MBS service authorization of the terminal device under the 5G MBS architecture can be realized.
其中，上述步骤S1901至S1904中第一控制面网元或者第二控制面网元的动作可以由图8所示的通信设备800中的处理器801调用存储器803中存储的应用程序代码以指令该第一控制面网元或者第二控制面网元执行，本实施例对此不作任何限制。The actions of the first control plane network element or the second control plane network element in the above steps S1901 to S1904 may be performed by the processor 801 in the communication device 800 shown in FIG. 8 calling the application code stored in the memory 803 to instruct the The first control plane network element or the second control plane network element executes this, which is not limited in this embodiment.
可以理解的是，图17至图19所示的实施例中，由第一控制面网元实现的方法和/或步骤，也可以由可用于第一控制面网元的部件(例如芯片或者电路)实现；由第二控制面网元实现的方法和/或步骤，也可以由可用于第二控制面网元的部件(例如芯片或者电路)实现；由会话管理网元实现的方法和/或步骤，也可以由可用于会话管理网元的部件(例如芯片或者电路)实现。It can be understood that, in the embodiments shown in FIG. 17 to FIG. 19 , the methods and/or steps implemented by the first control plane network element may also be implemented by components (such as chips or circuits) that can be used for the first control plane network element. ) implementation; the methods and/or steps implemented by the second control plane network element can also be implemented by components (such as chips or circuits) that can be used for the second control plane network element; the methods and/or steps implemented by the session management network element The steps may also be implemented by components (eg, chips or circuits) that can be used for session management network elements.
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置可以为上述方法实施例中的第一控制面网元，或者包含上述第一控制面网元的装置，或者为可用于第一控制面网元的部件；或者，该通信装置可以为上述方法实施例中的第二控制面网元，或者包含上述第二控制面网元的装置，或者为可用于第二控制面网元的部件；或者，该通信装置可以为上述方法实施例中的会话管理网元，或者包含上述会话管理网元的装置，或者为可用于会话管理网元的部件。可以理解的是，该通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Correspondingly, an embodiment of the present application further provides a communication device, where the communication device may be the first control plane network element in the foregoing method embodiments, or a device including the foregoing first control plane network element, or may be used for the first control plane network element. A component of a plane network element; or, the communication device may be the second control plane network element in the above method embodiments, or a device including the second control plane network element, or a component that can be used for the second control plane network element Alternatively, the communication device may be the session management network element in the above method embodiment, or a device including the above session management network element, or a component that can be used for the session management network element. It can be understood that, in order to realize the above-mentioned functions, the communication apparatus includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
图20示出了一种通信装置200的结构示意图。该通信装置200包括收发模块2001和处理模块2002。所述收发模块2001，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。FIG. 20 shows a schematic structural diagram of a communication apparatus 200 . The communication device 200 includes a transceiver module 2001 and a processing module 2002 . The transceiver module 2001 may also be called a transceiver unit to implement a transceiver function, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.
以通信装置200为上述方法实施例中的第一控制面网元或者设置在第一控制面网元中的芯片或其他部件为例，一种可能的实现方式中：Taking the communication device 200 as the first control plane network element in the above method embodiments or a chip or other component provided in the first control plane network element as an example, in a possible implementation manner:
收发模块2001，用于接收来自第二控制面网元的第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务。处理模块2002，用于根据第一MBS服务的标识和第一终端设备的标识，确定第一终端设备使用第一MBS服务的授权结果，授权结果包括授权成功或授权失败。收发模块2001，还用于向第二控制面网元发送第一MBS服务的标识和授权结果。The transceiver module 2001 is configured to receive a first message from a second control plane network element, where the first message includes an identifier of the first MBS service and an identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service . The processing module 2002 is configured to determine, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service, where the authorization result includes authorization success or authorization failure. The transceiver module 2001 is further configured to send the identifier of the first MBS service and the authorization result to the second control plane network element.
可选的，授权结果为授权成功；收发模块2001，还用于向第二控制面网元发送第一终端设备使用第一MBS服务的授权有效期。Optionally, the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to send the authorization validity period for the first terminal device to use the first MBS service to the second control plane network element.
可选的，处理模块2002，用于根据第一MBS服务的标识和第一终端设备的标识，确定授权结果，包括：用于通过收发模块2001向第三控制面网元发送第二消息，第二消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务；通过收发模块2001接收来自第三控制面网元的第一MBS服务的标识和授权结果。Optionally, the processing module 2002 is configured to determine the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, including: using the transceiver module 2001 to send the second message to the third control plane network element, the first The second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service; receiving the identifier of the first MBS service from the third control plane network element through the transceiver module 2001 and authorization results.
可选的，授权结果为授权成功；收发模块2001，还用于接收来自第三控制面网元的第一终端设备使用第一MBS服务的授权有效期。Optionally, the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the network element of the third control plane.
可选的，处理模块2002，还用于确定撤销第一终端设备使用第一MBS服务的授权。收发模块2001，还用于向会话管理网元发送第三消息，第三消息包括第一MBS服务的标识和所述第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。Optionally, the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service. The transceiver module 2001 is further configured to send a third message to the session management network element, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first MBS service of the first terminal device session.
可选的，处理模块2002，用于确定撤销第一终端设备使用第一MBS服务的授权，包括：用于确定第一终端设备使用第一MBS服务的授权有效期结束。Optionally, the processing module 2002, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: determining that the validity period of the authorization of the first terminal device to use the first MBS service ends.
可选的，收发模块2001，还用于接收来自第四控制面网元的第一终端设备使用第一MBS服务的授权有效期。Optionally, the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the network element of the fourth control plane.
可选的，处理模块2002，用于确定撤销第一终端设备使用第一MBS服务的授权，包括：用于确定第一MBS服务的授权信息发生变化。Optionally, the processing module 2002, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: determining that the authorization information of the first MBS service has changed.
可选的，收发模块2001，还用于接收来自第四控制面网元的第一MBS服务的授权信息。Optionally, the transceiver module 2001 is further configured to receive authorization information of the first MBS service from the network element of the fourth control plane.
可选的，处理模块2002，用于确定撤销第一终端设备使用第一MBS服务的授权，包括：用于通过收发模块2001接收来自第四控制面网元的第四消息，第四消息包括第一MBS服务的标识和第一终端设备的标识，用于通知撤销第一终端设备使用第一MBS服务的授权。Optionally, the processing module 2002, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, includes: using the transceiver module 2001 to receive a fourth message from the network element of the fourth control plane, where the fourth message includes the first An identifier of the MBS service and the identifier of the first terminal device are used to notify the revocation of the authorization of the first terminal device to use the first MBS service.
可选的，收发模块2001，还用于在处理模块2002确定撤销第一终端设备使用第一MBS服务的授权之前，向第四控制面网元发送第五消息，第五消息包括第一MBS服务的标识，用于请求订阅第一MBS服务授权变更事件。Optionally, the transceiver module 2001 is further configured to send a fifth message to the fourth control plane network element before the processing module 2002 determines to revoke the authorization of the first terminal device to use the first MBS service, where the fifth message includes the first MBS service The identifier used to request subscription to the first MBS service authorization change event.
另一种可能的实现方式中，处理模块2002，用于确定撤销第一终端设备使用第一MBS服务的授权。收发模块2001，用于向会话管理网元发送第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。In another possible implementation manner, the processing module 2002 is configured to determine to revoke the authorization of the first terminal device to use the first MBS service. The transceiver module 2001 is configured to send a first message to a session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
以通信装置200为上述方法实施例中的第二控制面网元或者设置在第二控制面网元中的芯片或其他部件为例，一种可能的实现方式中：Taking the communication device 200 as the second control plane network element in the above method embodiments or a chip or other component provided in the second control plane network element as an example, in a possible implementation manner:
收发模块2001，用于向第一控制面网元发送第一消息，第一消息包括第一MBS服务的标识和第一终端设备的标识，用于请求授权第一终端设备使用第一MBS服务。收发模块2001，还用于接收来自第一控制面网元的第一MBS服务的标识以及第一终端设备使用第一MBS服务的授权结果，授权结果包括授权成功或授权失败。处理模块2002，用于根据授权结果以及第一MBS服务的标识，确定第一终端设备的第一MBS服务授权成功或授权失败。The transceiver module 2001 is configured to send a first message to a first control plane network element, where the first message includes an identifier of the first MBS service and an identifier of the first terminal device, and is used to request authorization for the first terminal device to use the first MBS service. The transceiver module 2001 is further configured to receive the identifier of the first MBS service from the first control plane network element and the authorization result of the first terminal device using the first MBS service, where the authorization result includes authorization success or authorization failure. The processing module 2002 is configured to determine whether the authorization of the first MBS service of the first terminal device succeeds or the authorization fails according to the authorization result and the identifier of the first MBS service.
可选的，授权结果为授权失败；收发模块2001，还用于向第一终端设备发送第一指示信息，第一指示信息用于指示授权第一终端设备使用第一MBS服务失败。Optionally, the authorization result is authorization failure; the transceiver module 2001 is further configured to send first indication information to the first terminal device, where the first indication information is used to indicate that authorizing the first terminal device to use the first MBS service fails.
可选的，授权结果为授权成功；处理模块2002，还用于建立或更新第一终端设备的第一MBS服务的会话；或者，收发模块2001，还用于向会话管理网元发送第六消息，第六消息用于请求建立或更新第一MBS服务的会话。Optionally, the authorization result is that the authorization is successful; the processing module 2002 is further configured to establish or update the session of the first MBS service of the first terminal device; or the transceiver module 2001 is further configured to send a sixth message to the session management network element , the sixth message is used to request to establish or update the session of the first MBS service.
可选的，授权结果为授权成功；收发模块2001，还用于接收来自第一控制面网元的第一终端设备使用第一MBS服务的授权有效期。处理模块2002，还用于在第一终端设备使用第一MBS服务的授权有效期结束后，释放第一终端设备的第一MBS服务的会话。Optionally, the authorization result is that the authorization is successful; the transceiver module 2001 is further configured to receive an authorization validity period for the first terminal device to use the first MBS service from the first control plane network element. The processing module 2002 is further configured to release the session of the first MBS service of the first terminal device after the validity period of the authorization for the first terminal device to use the first MBS service expires.
可选的，第二控制面网元为会话管理网元；处理模块2002，还用于确定撤销第一终端设备使用所述第一MBS服务的授权；处理模块2002，还用于释放第一终端设备的第一MBS服务的会话。Optionally, the second control plane network element is a session management network element; the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service; the processing module 2002 is further configured to release the first terminal The device's first MBS service session.
可选的，第二控制面网元为移动性管理网元；处理模块2002，还用于确定撤销第一终端设备使用第一MBS服务的授权；收发模块2001，还用于向会话管理网元发送第七消息，第七消息包括第一MBS服务的标识和第一终端设备的标识，用于通知释放第一终端设备的第一MBS服务的会话。Optionally, the second control plane network element is a mobility management network element; the processing module 2002 is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service; the transceiver module 2001 is further configured to report to the session management network element A seventh message is sent, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the session of the first MBS service of the first terminal device.
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。Wherein, all relevant contents of the steps involved in the above method embodiments can be cited in the functional descriptions of the corresponding functional modules, which will not be repeated here.
在本实施例中，该通信装置200以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该通信装置200可以采用图8所示的通信设备800的形式。In this embodiment, the communication apparatus 200 is presented in the form of dividing each functional module in an integrated manner. "Module" herein may refer to a specific ASIC, circuit, processor and memory executing one or more software or firmware programs, integrated logic circuit, and/or other device that may provide the functions described above. In a simple embodiment, those skilled in the art can imagine that the communication apparatus 200 may take the form of the communication device 800 shown in FIG. 8 .
比如，图8所示的通信设备800中的处理器801可以通过调用存储器803中存储的计算机执行指令，使得通信设备800执行上述方法实施例中的通信方法。For example, the processor 801 in the communication device 800 shown in FIG. 8 may execute the instructions by calling the computer stored in the memory 803, so that the communication device 800 executes the communication method in the above method embodiment.
具体的，图20中的收发模块2001和处理模块2002的功能/实现过程可以通过图8所示的通信设备800中的处理器801调用存储器803中存储的计算机执行指令来实现。或者，图20中的处理模块2002的功能/实现过程可以通过图8所示的通信设备800中的处理器801调用存储器803中存储的计算机执行指令来实现，图20中的收发模块2001的功能/实现过程可以通过图8中所示的通信设备800中的通信接口804来实现。Specifically, the functions/implementation process of the transceiver module 2001 and the processing module 2002 in FIG. 20 can be implemented by the processor 801 in the communication device 800 shown in FIG. 8 calling the computer execution instructions stored in the memory 803 . Alternatively, the function/implementation process of the processing module 2002 in FIG. 20 can be implemented by the processor 801 in the communication device 800 shown in FIG. 8 calling the computer execution instructions stored in the memory 803, and the function of the transceiver module 2001 in FIG. The implementation process can be implemented through the communication interface 804 in the communication device 800 shown in FIG. 8 .
由于本实施例提供的通信装置200可执行上述通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。Since the communication apparatus 200 provided in this embodiment can execute the above communication method, the technical effects that can be obtained by the communication apparatus 200 can refer to the above method embodiments, which will not be repeated here.
需要说明的是，以上模块或单元的一个或多个可以软件、硬件或二者结合来实现。 当以上任一模块或单元以软件实现的时候，所述软件以计算机程序指令的方式存在，并被存储在存储器中，处理器可以用于执行所述程序指令并实现以上方法流程。该处理器可以内置于SoC(片上***)或ASIC，也可是一个独立的半导体芯片。该处理器内处理用于执行软件指令以进行运算或处理的核外，还可进一步包括必要的硬件加速器，如现场可编程门阵列(field programmable gate array，FPGA)、PLD(可编程逻辑器件)、或者实现专用逻辑运算的逻辑电路。It should be noted that, one or more of the above modules or units may be implemented by software, hardware or a combination of both. When any of the above modules or units are implemented in software, the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow. The processor can be built into a SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core for executing software instructions for operation or processing, the internal processing of the processor may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (Programmable Logic Device) , or a logic circuit that implements dedicated logic operations.
当以上模块或单元以硬件实现的时候，该硬件可以是CPU、微处理器、数字信号处理(digital signal processing，DSP)芯片、微控制单元(microcontroller unit，MCU)、人工智能处理器、ASIC、SoC、FPGA、PLD、专用数字电路、硬件加速器或非集成的分立器件中的任一个或任一组合，其可以运行必要的软件或不依赖于软件以执行以上方法流程。When the above modules or units are implemented in hardware, the hardware can be CPU, microprocessor, digital signal processing (DSP) chip, microcontroller unit (MCU), artificial intelligence processor, ASIC, Any or any combination of SoCs, FPGAs, PLDs, dedicated digital circuits, hardware accelerators, or non-integrated discrete devices that may or may not run the necessary software to perform the above method flows.
可选的，本申请实施例还提供了一种通信装置(例如，该通信装置可以是芯片或芯片***)，该通信装置包括处理器，用于实现上述任一方法实施例中的方法。在一种可能的实现方式中，该通信装置还包括存储器。该存储器，用于保存必要的程序指令和数据，处理器可以调用存储器中存储的程序代码以指令该通信装置执行上述任一方法实施例中的方法。当然，存储器也可以不在该通信装置中。该通信装置是芯片***时，可以由芯片构成，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。Optionally, an embodiment of the present application further provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), where the communication apparatus includes a processor for implementing the method in any of the foregoing method embodiments. In a possible implementation, the communication device further includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication apparatus to execute the method in any of the above method embodiments. Of course, the memory may also not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the medium. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。Although the application is described herein in conjunction with the various embodiments, those skilled in the art will understand and understand from a review of the drawings, the disclosure, and the appended claims in practicing the claimed application. Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅 仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely illustrative of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (42)

  1. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method comprises:
    第一控制面网元接收来自第二控制面网元的第一消息，所述第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；The first control plane network element receives a first message from the second control plane network element, where the first message includes the identifier of the first multicast broadcast service MBS service and the identifier of the first terminal device, and is used to request authorization of the first message. A terminal device uses the first MBS service;
    所述第一控制面网元根据第一MBS服务的标识和第一终端设备的标识，确定所述第一终端设备使用所述第一MBS服务的授权结果，所述授权结果包括授权成功或授权失败；The first control plane network element determines, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service, where the authorization result includes authorization success or authorization Fail;
    所述第一控制面网元向所述第二控制面网元发送所述第一MBS服务的标识和所述授权结果。The first control plane network element sends the identifier of the first MBS service and the authorization result to the second control plane network element.
  2. 根据权利要求1所述的方法，其特征在于，所述授权结果为授权成功；所述方法还包括：The method according to claim 1, wherein the authorization result is that authorization is successful; the method further comprises:
    所述第一控制面网元向所述第二控制面网元发送所述第一终端设备使用所述第一MBS服务的授权有效期。The first control plane network element sends, to the second control plane network element, an authorization validity period for the first terminal device to use the first MBS service.
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一控制面网元根据第一MBS服务的标识和第一终端设备的标识，确定授权结果，包括：The method according to claim 1 or 2, wherein the first control plane network element determines the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, comprising:
    所述第一控制面网元向第三控制面网元发送第二消息，所述第二消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；The first control plane network element sends a second message to a third control plane network element, where the second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the the first terminal device uses the first MBS service;
    所述第一控制面网元接收来自所述第三控制面网元的所述第一MBS服务的标识和所述授权结果。The first control plane network element receives the identification of the first MBS service and the authorization result from the third control plane network element.
  4. 根据权利要求3所述的方法，其特征在于，所述授权结果为授权成功；所述方法还包括：The method according to claim 3, wherein the authorization result is authorization success; the method further comprises:
    所述第一控制面网元接收来自所述第三控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期。The first control plane network element receives, from the third control plane network element, an authorization validity period for the first terminal device to use the first MBS service.
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1-4, wherein the method further comprises:
    所述第一控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权；The first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service;
    所述第一控制面网元向会话管理网元发送第三消息，所述第三消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The first control plane network element sends a third message to the session management network element, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first The session of the first MBS service of the terminal device.
  6. 根据权利要求5所述的方法，其特征在于，所述第一控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The method according to claim 5, wherein determining, by the first control plane network element, to revoke the authorization of the first terminal device to use the first MBS service, comprising:
    所述第一控制面网元确定所述第一终端设备使用所述第一MBS服务的授权有效期结束。The first control plane network element determines that the validity period of the authorization for the first terminal device to use the first MBS service ends.
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：The method according to claim 6, wherein the method further comprises:
    所述第一控制面网元接收来自第四控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期。The first control plane network element receives the authorization validity period for the first terminal device to use the first MBS service from the fourth control plane network element.
  8. 根据权利要求5所述的方法，其特征在于，所述第一控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The method according to claim 5, wherein determining, by the first control plane network element, to revoke the authorization of the first terminal device to use the first MBS service, comprising:
    所述第一控制面网元确定所述第一MBS服务的授权信息发生变化。The first control plane network element determines that the authorization information of the first MBS service has changed.
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：The method according to claim 8, wherein the method further comprises:
    所述第一控制面网元接收来自第四控制面网元的所述第一MBS服务的授权信息。The first control plane network element receives authorization information for the first MBS service from the fourth control plane network element.
  10. 根据权利要求5所述的方法，其特征在于，所述第一控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The method according to claim 5, wherein determining, by the first control plane network element, to revoke the authorization of the first terminal device to use the first MBS service, comprising:
    所述第一控制面网元接收来自第四控制面网元的第四消息，所述第四消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知撤销所述第一终端设备使用所述第一MBS服务的授权。The first control plane network element receives a fourth message from the fourth control plane network element, where the fourth message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the cancellation of the authorization for the first terminal device to use the first MBS service.
  11. 根据权利要求5-10任一项所述的方法，其特征在于，在所述第一控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权之前，所述方法还包括：The method according to any one of claims 5-10, wherein before the first control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service, the method further comprises: include:
    所述第一控制面网元向第四控制面网元发送第五消息，所述第五消息包括所述第一MBS服务的标识，用于请求订阅所述第一MBS服务授权变更事件。The first control plane network element sends a fifth message to the fourth control plane network element, where the fifth message includes the identifier of the first MBS service, and is used for requesting to subscribe to the first MBS service authorization change event.
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述第一控制面网元包括统一数据存储网元、统一数据管理网元、MBS控制面网元、策略控制功能网元、网络开放功能网元或者应用功能网元；The method according to any one of claims 1-11, wherein the first control plane network element comprises a unified data storage network element, a unified data management network element, an MBS control plane network element, and a policy control function network element , network open function network element or application function network element;
    所述第二控制面网元包括会话管理网元或者移动性管理网元。The second control plane network element includes a session management network element or a mobility management network element.
  13. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method comprises:
    第二控制面网元向第一控制面网元发送第一消息，所述第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；The second control plane network element sends a first message to the first control plane network element, where the first message includes the identifier of the first multicast broadcast service MBS service and the identifier of the first terminal device, and is used to request authorization of the first the terminal device uses the first MBS service;
    所述第二控制面网元接收来自所述第一控制面网元的所述第一MBS服务的标识以及所述第一终端设备使用所述第一MBS服务的授权结果，所述授权结果包括授权成功或授权失败；The second control plane network element receives the identifier of the first MBS service from the first control plane network element and an authorization result for the first terminal device to use the first MBS service, where the authorization result includes Authorization succeeds or authorization fails;
    所述第二控制面网元根据所述授权结果以及所述第一MBS服务的标识，确定所述第一终端设备的所述第一MBS服务授权成功或授权失败。The second control plane network element determines, according to the authorization result and the identifier of the first MBS service, that the authorization of the first MBS service of the first terminal device succeeds or the authorization fails.
  14. 根据权利要求13所述的方法，其特征在于，所述授权结果为授权失败；所述方法还包括：The method according to claim 13, wherein the authorization result is authorization failure; the method further comprises:
    所述第二控制面网元向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示授权所述第一终端设备使用所述第一MBS服务失败。The second control plane network element sends first indication information to the first terminal device, where the first indication information is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  15. 根据权利要求13所述的方法，其特征在于，所述授权结果为授权成功；所述方法还包括：The method according to claim 13, wherein the authorization result is that authorization is successful; the method further comprises:
    所述第二控制面网元建立或更新所述第一终端设备的所述第一MBS服务的会话；或者，The second control plane network element establishes or updates the session of the first MBS service of the first terminal device; or,
    所述第二控制面网元向会话管理网元发送第六消息，所述第六消息用于请求建立或更新所述第一MBS服务的会话。The second control plane network element sends a sixth message to the session management network element, where the sixth message is used to request to establish or update the session of the first MBS service.
  16. 根据权利要求13或15所述的方法，其特征在于，所述授权结果为授权成功；所述方法还包括：The method according to claim 13 or 15, wherein the authorization result is authorization success; the method further comprises:
    所述第二控制面网元接收来自所述第一控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期；receiving, by the second control plane network element, an authorization validity period for the first terminal device to use the first MBS service from the first control plane network element;
    在所述第一终端设备使用所述第一MBS服务的授权有效期结束后，所述第二控制面网元释放所述第一终端设备的所述第一MBS服务的会话。After the validity period of the authorization for the first terminal device to use the first MBS service expires, the second control plane network element releases the session of the first MBS service of the first terminal device.
  17. 根据权利要求13-16任一项所述的方法，其特征在于，所述第二控制面网元为会话管理网元；所述方法还包括：The method according to any one of claims 13-16, wherein the second control plane network element is a session management network element; the method further comprises:
    所述第二控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权；The second control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service;
    所述第二控制面网元释放所述第一终端设备的所述第一MBS服务的会话。The second control plane network element releases the session of the first MBS service of the first terminal device.
  18. 根据权利要求13-16任一项所述的方法，其特征在于，所述第二控制面网元为移动性管理网元；所述方法还包括：The method according to any one of claims 13-16, wherein the second control plane network element is a mobility management network element; the method further comprises:
    所述第二控制面网元确定撤销所述第一终端设备使用所述第一MBS服务的授权；The second control plane network element determines to revoke the authorization of the first terminal device to use the first MBS service;
    所述第二控制面网元向会话管理网元发送第七消息，所述第七消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The second control plane network element sends a seventh message to the session management network element, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first The session of the first MBS service of the terminal device.
  19. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method comprises:
    第一控制面网元确定撤销第一终端设备使用第一多播广播服务MBS服务的授权；The first control plane network element determines to revoke the authorization of the first terminal device to use the MBS service of the first multicast broadcast service;
    所述第一控制面网元向会话管理网元发送第一消息，所述第一消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The first control plane network element sends a first message to the session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first message. The session of the first MBS service of the terminal device.
  20. 根据权利要求19所述的方法，其特征在于，所述第一控制面网元包括统一数据存储网元、统一数据管理网元、MBS控制面网元、策略控制功能网元、网络开放功能网元或者移动性管理网元。The method according to claim 19, wherein the first control plane network element comprises a unified data storage network element, a unified data management network element, an MBS control plane network element, a policy control function network element, and a network open function network element. element or mobility management network element.
  21. 一种第一控制面网元，其特征在于，所述第一控制面网元包括：收发模块和处理模块；A first control plane network element, characterized in that the first control plane network element comprises: a transceiver module and a processing module;
    所述收发模块，用于接收来自第二控制面网元的第一消息，所述第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；The transceiver module is configured to receive a first message from a second control plane network element, where the first message includes an identifier of the first multicast broadcast service MBS service and an identifier of a first terminal device, and is used to request authorization for the the first terminal device uses the first MBS service;
    所述处理模块，用于根据第一MBS服务的标识和第一终端设备的标识，确定所述第一终端设备使用所述第一MBS服务的授权结果，所述授权结果包括授权成功或授权失败；The processing module is configured to determine, according to the identifier of the first MBS service and the identifier of the first terminal device, an authorization result for the first terminal device to use the first MBS service, where the authorization result includes authorization success or authorization failure ;
    所述收发模块，还用于向所述第二控制面网元发送所述第一MBS服务的标识和所述授权结果。The transceiver module is further configured to send the identifier of the first MBS service and the authorization result to the second control plane network element.
  22. 根据权利要求21所述的第一控制面网元，其特征在于，所述授权结果为授权成功；The first control plane network element according to claim 21, wherein the authorization result is authorization success;
    所述收发模块，还用于向所述第二控制面网元发送所述第一终端设备使用所述第一MBS服务的授权有效期。The transceiver module is further configured to send, to the second control plane network element, an authorization validity period for the first terminal device to use the first MBS service.
  23. 根据权利要求21或22所述的第一控制面网元，其特征在于，所述处理模块，用于根据第一MBS服务的标识和第一终端设备的标识，确定授权结果，包括：The first control plane network element according to claim 21 or 22, wherein the processing module is configured to determine the authorization result according to the identifier of the first MBS service and the identifier of the first terminal device, comprising:
    用于通过所述收发模块向第三控制面网元发送第二消息，所述第二消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；通过所述收发模块接收来自所述第三控制面网元的所述第一 MBS服务的标识和所述授权结果。is configured to send a second message to a third control plane network element through the transceiver module, where the second message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to request authorization for the third A terminal device uses the first MBS service; and receives the identification of the first MBS service and the authorization result from the third control plane network element through the transceiver module.
  24. 根据权利要求23所述的第一控制面网元，其特征在于，所述授权结果为授权成功；所述收发模块，还用于接收来自所述第三控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期。The first control plane network element according to claim 23, wherein the authorization result is authorization success; and the transceiver module is further configured to receive the first terminal from the third control plane network element The authorization validity period for the device to use the first MBS service.
  25. 根据权利要求21-24任一项所述的第一控制面网元，其特征在于，所述处理模块，还用于确定撤销所述第一终端设备使用所述第一MBS服务的授权；The first control plane network element according to any one of claims 21-24, wherein the processing module is further configured to determine to revoke the authorization of the first terminal device to use the first MBS service;
    所述收发模块，还用于向会话管理网元发送第三消息，所述第三消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The transceiver module is further configured to send a third message to the session management network element, where the third message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first The session of the first MBS service of the terminal device.
  26. 根据权利要求25所述的第一控制面网元，其特征在于，所述处理模块，用于确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The first control plane network element according to claim 25, wherein the processing module, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, comprises:
    用于确定所述第一终端设备使用所述第一MBS服务的授权有效期结束。It is used to determine that the validity period of the authorization for the first terminal device to use the first MBS service ends.
  27. 根据权利要求26所述的第一控制面网元，其特征在于，所述收发模块，还用于接收来自第四控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期。The first control plane network element according to claim 26, wherein the transceiver module is further configured to receive an authorization from the fourth control plane network element for the first terminal device to use the first MBS service Validity period.
  28. 根据权利要求25所述的第一控制面网元，其特征在于，所述处理模块，用于确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The first control plane network element according to claim 25, wherein the processing module, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, comprises:
    用于确定所述第一MBS服务的授权信息发生变化。The authorization information for determining the first MBS service is changed.
  29. 根据权利要求28所述的第一控制面网元，其特征在于，所述收发模块，还用于接收来自第四控制面网元的所述第一MBS服务的授权信息。The first control plane network element according to claim 28, wherein the transceiver module is further configured to receive authorization information of the first MBS service from a fourth control plane network element.
  30. 根据权利要求25所述的第一控制面网元，其特征在于，所述处理模块，用于确定撤销所述第一终端设备使用所述第一MBS服务的授权，包括：The first control plane network element according to claim 25, wherein the processing module, configured to determine to revoke the authorization of the first terminal device to use the first MBS service, comprises:
    用于通过所述收发模块接收来自第四控制面网元的第四消息，所述第四消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知撤销所述第一终端设备使用所述第一MBS服务的授权。is configured to receive, through the transceiver module, a fourth message from the network element of the fourth control plane, where the fourth message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the cancellation of the The authorization of the first terminal device to use the first MBS service.
  31. 根据权利要求25-30任一项所述的第一控制面网元，其特征在于，The first control plane network element according to any one of claims 25-30, wherein:
    所述收发模块，还用于在所述处理模块确定撤销所述第一终端设备使用所述第一MBS服务的授权之前，向第四控制面网元发送第五消息，所述第五消息包括所述第一MBS服务的标识，用于请求订阅所述第一MBS服务授权变更事件。The transceiver module is further configured to send a fifth message to the fourth control plane network element before the processing module determines to revoke the authorization of the first terminal device to use the first MBS service, where the fifth message includes The identifier of the first MBS service, which is used to request subscription to the authorization change event of the first MBS service.
  32. 根据权利要求21-31任一项所述的第一控制面网元，其特征在于，所述第一控制面网元包括统一数据存储网元、统一数据管理网元、MBS控制面网元、策略控制功能网元、网络开放功能网元或者应用功能网元；The first control plane network element according to any one of claims 21-31, wherein the first control plane network element comprises a unified data storage network element, a unified data management network element, an MBS control plane network element, Policy control function network element, network open function network element or application function network element;
    所述第二控制面网元包括会话管理网元或者移动性管理网元。The second control plane network element includes a session management network element or a mobility management network element.
  33. 一种第二控制面网元，其特征在于，所述第二控制面网元包括：处理模块和收发模块；A second control plane network element, characterized in that the second control plane network element comprises: a processing module and a transceiver module;
    所述收发模块，用于向第一控制面网元发送第一消息，所述第一消息包括第一多播广播服务MBS服务的标识和第一终端设备的标识，用于请求授权所述第一终端设备使用所述第一MBS服务；The transceiver module is configured to send a first message to the first control plane network element, where the first message includes the identifier of the first multicast broadcast service MBS service and the identifier of the first terminal device, and is used to request authorization of the first A terminal device uses the first MBS service;
    所述收发模块，还用于接收来自所述第一控制面网元的所述第一MBS服务的标识 以及所述第一终端设备使用所述第一MBS服务的授权结果，所述授权结果包括授权成功或授权失败；The transceiver module is further configured to receive an identifier of the first MBS service from the first control plane network element and an authorization result for the first terminal device to use the first MBS service, where the authorization result includes Authorization succeeds or authorization fails;
    所述处理模块，用于根据所述授权结果以及所述第一MBS服务的标识，确定所述第一终端设备的所述第一MBS服务授权成功或授权失败。The processing module is configured to, according to the authorization result and the identifier of the first MBS service, determine whether the authorization of the first MBS service of the first terminal device succeeds or the authorization fails.
  34. 根据权利要求33所述的第二控制面网元，其特征在于，所述授权结果为授权失败；所述收发模块，还用于向所述第一终端设备发送第一指示信息，所述第一指示信息用于指示授权所述第一终端设备使用所述第一MBS服务失败。The second control plane network element according to claim 33, wherein the authorization result is authorization failure; the transceiver module is further configured to send first indication information to the first terminal device, the first An indication message is used to indicate that authorizing the first terminal device to use the first MBS service fails.
  35. 根据权利要求33所述的第二控制面网元，其特征在于，所述授权结果为授权成功；所述处理模块，还用于建立或更新所述第一终端设备的所述第一MBS服务的会话；或者，The second control plane network element according to claim 33, wherein the authorization result is authorization success; and the processing module is further configured to establish or update the first MBS service of the first terminal device session; or,
    所述收发模块，还用于向会话管理网元发送第六消息，所述第六消息用于请求建立或更新所述第一MBS服务的会话。The transceiver module is further configured to send a sixth message to the session management network element, where the sixth message is used to request to establish or update the session of the first MBS service.
  36. 根据权利要求33或35所述的第二控制面网元，其特征在于，所述授权结果为授权成功；所述收发模块，还用于接收来自所述第一控制面网元的所述第一终端设备使用所述第一MBS服务的授权有效期；The second control plane network element according to claim 33 or 35, wherein the authorization result is that authorization is successful; and the transceiver module is further configured to receive the first control plane network element from the first control plane network element. an authorization validity period for a terminal device to use the first MBS service;
    所述处理模块，还用于在所述第一终端设备使用所述第一MBS服务的授权有效期结束后，释放所述第一终端设备的所述第一MBS服务的会话。The processing module is further configured to release the session of the first MBS service of the first terminal device after the validity period of the authorization for the first terminal device to use the first MBS service expires.
  37. 根据权利要求33-36任一项所述的第二控制面网元，其特征在于，所述第二控制面网元为会话管理网元；所述处理模块，还用于确定撤销所述第一终端设备使用所述第一MBS服务的授权；The second control plane network element according to any one of claims 33 to 36, wherein the second control plane network element is a session management network element; and the processing module is further configured to determine to cancel the second control plane network element. An authorization for a terminal device to use the first MBS service;
    所述处理模块，还用于释放所述第一终端设备的所述第一MBS服务的会话。The processing module is further configured to release the session of the first MBS service of the first terminal device.
  38. 根据权利要求33-36任一项所述的第二控制面网元，其特征在于，所述第二控制面网元为移动性管理网元；所述处理模块，还用于确定撤销所述第一终端设备使用所述第一MBS服务的授权；The second control plane network element according to any one of claims 33-36, wherein the second control plane network element is a mobility management network element; and the processing module is further configured to determine to cancel the authorization for the first terminal device to use the first MBS service;
    所述收发模块，还用于向会话管理网元发送第七消息，所述第七消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The transceiver module is further configured to send a seventh message to the session management network element, where the seventh message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first The session of the first MBS service of the terminal device.
  39. 一种第一控制面网元，其特征在于，所述第一控制面网元包括：处理模块和收发模块；A first control plane network element, characterized in that the first control plane network element comprises: a processing module and a transceiver module;
    所述处理模块，用于确定撤销第一终端设备使用第一多播广播服务MBS服务的授权；The processing module is configured to determine to revoke the authorization of the first terminal device to use the MBS service of the first multicast broadcast service;
    所述收发模块，用于向会话管理网元发送第一消息，所述第一消息包括所述第一MBS服务的标识和所述第一终端设备的标识，用于通知释放所述第一终端设备的所述第一MBS服务的会话。The transceiver module is configured to send a first message to the session management network element, where the first message includes the identifier of the first MBS service and the identifier of the first terminal device, and is used to notify the release of the first terminal The session of the first MBS service of the device.
  40. 根据权利要求39所述的第一控制面网元，其特征在于，所述第一控制面网元包括统一数据存储网元、统一数据管理网元、MBS控制面网元、策略控制功能网元、网络开放功能网元或者移动性管理网元。The first control plane network element according to claim 39, wherein the first control plane network element comprises a unified data storage network element, a unified data management network element, an MBS control plane network element, and a policy control function network element , network open function network element or mobility management network element.
  41. 一种计算机可读存储介质，所述存储介质中存储有指令，当所述指令在计算机上运行时，使得所述计算机执行权利要求1至20任一项所述的方法。A computer-readable storage medium having instructions stored in the storage medium, when the instructions are executed on a computer, cause the computer to perform the method of any one of claims 1 to 20.
  42. 一种计算机程序产品，所述程序产品包括指令，当所述指令在计算机上运行时，使得所述计算机执行权利要求1至20任一项所述的方法。A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 20.
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