CN113973268B - Data receiving method, data sending method, resource updating method, device and equipment - Google Patents
Data receiving method, data sending method, resource updating method, device and equipment Download PDFInfo
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- CN113973268B CN113973268B CN202010719763.7A CN202010719763A CN113973268B CN 113973268 B CN113973268 B CN 113973268B CN 202010719763 A CN202010719763 A CN 202010719763A CN 113973268 B CN113973268 B CN 113973268B
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- 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
- H04W4/08—User group management
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Abstract
The application provides a data receiving method, a data sending method, a resource updating method, a device and equipment, wherein the method comprises the following steps: receiving multicast irrelevant air interface resource information from source network side equipment; and receiving multicast service data sent by target network side equipment according to the multicast irrelevant air interface resource information. The method and the device can reduce the interruption time of the multicast service data.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a data receiving method, a data sending method, a resource updating method, a device, and an apparatus.
Background
In some communication systems (e.g., 5G systems), a terminal may support Protocol Data Unit (PDU) session and multicast service Data transmission, and the multicast service Data supports transmission through the PDU session. However, in practical applications, a terminal may be switched, that is, switched from a source network side device to a target network side device, and PDUs for transmitting multicast service data may not be established or activated yet, so that the multicast service data interruption time is relatively long.
Disclosure of Invention
The embodiment of the application provides a data receiving method, a data sending method, a resource updating method, a device and equipment, and can solve the problem that the interruption time of multicast service data is long.
In a first aspect, an embodiment of the present application provides a method for receiving multicast service data, which is applied to a terminal, and includes:
receiving multicast irrelevant air interface resource information from source network side equipment;
and receiving multicast service data sent by target network side equipment according to the multicast irrelevant air interface resource information.
In a second aspect, an embodiment of the present application provides a method for sending multicast service data, which is applied to a source network side device, and includes:
sending a forwarding indication to forwarding equipment, wherein the forwarding equipment comprises target network side equipment or a core network function;
and multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment.
In a third aspect, an embodiment of the present application provides a method for sending multicast service data, which is applied to a target network side device, and includes:
receiving multicast service data, wherein the multicast service data is sent by a core network function or source network side equipment of a terminal;
and multiplexing and sending the multicast service data and Protocol Data Unit (PDU) session data to the terminal.
In a fourth aspect, an embodiment of the present application provides a resource updating method, which is applied to a core network function, and includes:
receiving PDU session information sent by target network side equipment;
and after waiting for a preset time, updating the PDU session core network resource indicated by the PDU session information.
In a fifth aspect, an embodiment of the present application provides a multicast service data receiving apparatus, which is applied to a terminal, and includes:
the first receiving module is used for receiving multicast irrelevant air interface resource information from source network side equipment;
and the second receiving module is used for receiving the multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information.
In a sixth aspect, an embodiment of the present application provides a multicast service data sending apparatus, which is applied to a source network device, and includes:
a first sending module, configured to send a forwarding indication to a forwarding device, where the forwarding device includes a target network side device or a core network function;
and the second sending module is used for multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment.
In a seventh aspect, an embodiment of the present application provides a multicast service data sending apparatus, which is applied to a target network side device, and includes:
the first receiving module is used for receiving multicast service data, wherein the multicast service data is sent by a core network function or source network side equipment of a terminal;
and the first sending module is used for multiplexing and sending the multicast service data and Protocol Data Unit (PDU) session data to the terminal.
In an eighth aspect, an embodiment of the present application provides a resource updating apparatus, which is applied to a core network function, and includes:
the receiving module is used for receiving PDU session information sent by target network side equipment;
and the updating module is used for updating the PDU session core network resource indicated by the PDU session information after waiting for the preset time.
In a ninth aspect, an embodiment of the present application provides a terminal, including: the multicast service data receiving method comprises a memory, a processor and a program or instructions stored on the memory and capable of running on the processor, wherein the program or instructions when executed by the processor implement the steps in the multicast service data receiving method provided by the embodiment of the application.
In a tenth aspect, an embodiment of the present application provides a network side device, where the network side device is a source network side device, and the network side device includes: the source network side device comprises a memory, a processor and a program or an instruction stored on the memory and capable of running on the processor, wherein when the program or the instruction is executed by the processor, the step in the multicast service data sending method of the source network side device provided by the embodiment of the application is realized.
In an eleventh aspect, an embodiment of the present application provides a network-side device, where the network-side device is a target network-side device, and the network-side device is characterized by including: the multicast service data transmission method includes a memory, a processor, and a program or an instruction stored in the memory and executable on the processor, where the program or the instruction implements, when executed by the processor, the steps in the multicast service data transmission method of a target network side device provided in the embodiment of the present application.
In a twelfth aspect, an embodiment of the present application provides a core network function, including: the resource updating method comprises a memory, a processor and a program or an instruction which is stored on the memory and can run on the processor, wherein the program or the instruction realizes the steps of the resource updating method provided by the embodiment of the application when being executed by the processor.
In a thirteenth aspect, an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored in the readable storage medium, and the program or the instruction when executed by a processor implements a step in a method for receiving multicast service data provided by an embodiment of the present application, or the program or the instruction when executed by the processor implements a step in a method for sending multicast service data of a source network side device provided by an embodiment of the present application, or the program or the instruction when executed by the processor implements a step in a method for sending multicast service data of a target network side device provided by an embodiment of the present application, or the program or the instruction when executed by the processor implements a step in a method for updating resources provided by an embodiment of the present application.
In a tenth aspect, an embodiment of the present application provides a program product, where the program product is stored in a non-volatile storage medium and executed by at least one processor to implement the steps in the method for receiving multicast service data provided in the embodiment of the present application, or executed by at least one processor to implement the steps in the method for sending multicast service data of a source network-side device provided in the embodiment of the present application, or executed by at least one processor to implement the steps in the method for sending multicast service data of a target network-side device provided in the embodiment of the present application, or executed by at least one processor to implement the steps in the method for updating resources provided in the embodiment of the present application.
In the embodiment of the application, multicast irrelevant air interface resource information is received from source network side equipment; and receiving the multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information. Therefore, the multicast service data sent by the target network side equipment can be received directly through the multicast irrelevant empty resource information, and the multicast service data does not need to be received through the PDU session, so that the interruption time of the multicast service data can be reduced.
Drawings
FIG. 1 illustrates a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of a method for receiving multicast service data according to an embodiment of the present application;
fig. 3 is a flowchart of a method for sending multicast service data according to an embodiment of the present application;
fig. 4 is a flowchart of another method for sending multicast service data according to an embodiment of the present application;
FIG. 5 is a flowchart of a resource updating method according to an embodiment of the present application;
fig. 6 is a schematic diagram of multicast service data transmission according to an embodiment of the present application;
fig. 7 is a schematic diagram of multicast service data transmission according to an embodiment of the present application;
fig. 8 is a schematic diagram of multicast service data transmission according to an embodiment of the present application;
fig. 9 is a structural diagram of a multicast service data receiving apparatus according to an embodiment of the present application;
fig. 10 is a structural diagram of a multicast service data transmitting apparatus according to an embodiment of the present application;
fig. 11 is a structural diagram of a multicast service data transmitting apparatus according to an embodiment of the present application;
fig. 12 is a structural diagram of a resource updating apparatus according to an embodiment of the present application;
fig. 13 is a block diagram of a terminal according to an embodiment of the present application;
fig. 14 is a structural diagram of a network side device according to an embodiment of the present application;
fig. 15 is a structural diagram of a core network function according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th generation,6g communication systems.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11, a source network side device 12, a target network side device 13, and a core network function 14. Wherein, the terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID) or a vehicle mounted Device (VUE), a pedestrian terminal (PUE), a red UE, and other terminal side devices, where the red UE) may include: wearing equipment, industrial sensor, video monitoring equipment etc. wearing equipment includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11.
The source network-side device 12 and the target network-side device 13 may be Base stations or core networks, wherein the Base stations may be referred to as node bs, evolved node bs, access points, base Transceiver Stations (BTSs), radio Base stations, radio transceivers, basic Service Sets (BSSs), extended Service Sets (ESS), node bs, evolved node bs (enbs), home node bs, home evolved node bs, WLAN access points, wiFi nodes, transmission Receiving Points (TRPs), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base stations are not limited to a specific technical vocabulary, and it should be noted that in the present embodiment, only the Base stations in the NR system are taken as an example, but specific types of the Base stations are not limited.
The core network functions 14 may include at least one of: mobility Management Entity (MME), access Mobility Management Function (AMF), session Management Function (SMF), user Plane Function (UPF), multicast Session Management Function (MB-SMF), multicast User Plane Function (MB-UPF).
The following describes in detail a method, a device, a terminal, and a network side device for acquiring a control signaling according to the embodiments of the present application through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart of a method for receiving multicast service data according to an embodiment of the present application, where the method is applied to a terminal, and as shown in fig. 2, the method includes the following steps:
The multicast-unrelated air interface resource information may be information indicating a multicast-unrelated air interface resource, and the multicast-unrelated air interface resource may be an air interface resource originally used for non-multicast service transmission, for example: and resources of the multicast service independent PDU session, wherein the multicast service independent PDU session refers to the PDU session without transmitting the multicast service.
In addition, the receiving of the multicast-independent air interface resource information may be receiving the multicast-independent air interface resource information after initiating switching from the source network side device to the target network side device.
In an embodiment, the receiving the multicast-independent air interface resource information may be that the terminal receives the multicast-independent air interface resource information from the source network device after sending the measurement report to the source network device.
In another embodiment, the receiving of the multicast-independent air interface resource information may be receiving the multicast-independent air interface resource information before sending a handover confirmation message (or a handover completion message) to the target network side device.
And 202, receiving multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information.
The receiving of the multicast service data sent by the target network side device according to the multicast-independent air interface resource information may be determining a multicast-independent air interface resource according to the multicast-independent air interface resource information, and receiving the multicast service data sent by the target network side device on the multicast-independent air interface resource.
In this embodiment of the present application, through the foregoing steps, the terminal may receive multicast service data sent by a target network device according to multicast unrelated air interface resource information, so that the multicast service data does not need to be received through a PDU session, that is, a PDU session for transmitting the multicast service data is not established or activated before the multicast service data sent by the target network device is received, thereby reducing interruption time of the multicast service data.
As an optional implementation manner, before receiving, according to the multicast-independent air interface resource information, multicast service data sent by a target network side device, the method further includes:
and receiving a forwarding indication of the multicast service sent by the source network side equipment.
The forwarding instruction may be a forwarding instruction of a multicast service, which is sent to a terminal by a source network side device to send a handover request to a target network side device or a core network, or after receiving a handover response or a handover command.
Through the forwarding indication of the multicast service, the device can know that the multicast service data is sent by the target network side device.
Optionally, the forwarding indication is sent by a handover command.
Of course, this is not limited, for example: the above-mentioned forwarding indication may also be sent by a redirect message or by a separate message.
Wherein, the resource transmission overhead can be reduced by the forwarding indication being sent by the switching command.
In addition, the multicast-independent air interface resource information and the forwarding indication may be sent together, or may be sent separately, which is not limited thereto.
As an optional implementation manner, before receiving, according to the multicast-independent air interface resource information, multicast service data sent by a target network side device, the method further includes:
and sending the service information of the multicast service to the source network side equipment.
The service information may be sent together when the terminal sends the measurement report to the source network side device, and the service information may include a multicast service identifier and/or multicast service quality of service (QoS) information, where the multicast service identifier may include a Temporary Mobile Group Identity (TMGI) or other service identifiers.
After receiving the service information, the source network side device may instruct to forward the multicast service to the target network side device or the core network function according to the service information, and may also forward multicast service data and a PDU session to the target network side device or the core network function.
As an optional implementation manner, the receiving, according to the multicast-independent air interface resource information, a multicast service sent by a target network side device includes:
and receiving the multicast service data and PDU session data multiplexed and transmitted by the target network side equipment according to the multicast irrelevant empty resource information.
In this embodiment, multiplexing of the multicast service data and the PDU session data on the multicast-unrelated air interface resource information can be implemented to transmit, thereby further reducing the interruption time of the multicast service data and the PDU session data.
It should be noted that, the PDU session data refers to multicast-independent PDU session data, that is, the PDU session does not transmit multicast service data.
In the embodiment of the application, multicast irrelevant air interface resource information is received from source network side equipment; and receiving the multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information. Therefore, the multicast service data sent by the target network side equipment can be received directly through the multicast irrelevant empty resource information, and the multicast service data does not need to be received through the PDU session, so that the interruption time of the multicast service data can be reduced.
Referring to fig. 3, fig. 3 is a flowchart of a method for sending multicast service data according to an embodiment of the present application, where the method is applied to a source network side device, as shown in fig. 3, and includes the following steps:
The forwarding indication may be a forwarding indication of a multicast service, but is not limited to the foregoing, for example: the source network side device may forward the multicast service data and the PDU session data of the terminal through the forwarding indication, so that the forwarding indication may be understood as a forwarding indication for all data of the terminal.
In addition, the forwarding indication may be transmitted by a handover request or a handover notification message.
In addition, the forwarding indication may request or require the forwarding device to reserve a forwarding resource, that is, a resource for forwarding the multicast service data.
Further, the forwarding indication may further include service information of the multicast service.
The above multiplexing transmission of the multicast service data and the PDU session data to the forwarding device may be multiplexing transmission of the multicast service data and the PDU session data to the forwarding device according to forwarding resource information provided by the forwarding device. For example: and the source network side equipment multiplexes and transmits the multicast service data and the PDU session data to the forwarding equipment according to the downlink forwarding receiving resource information or the core network forwarding resource information provided by the forwarding equipment.
In this embodiment, since the multicast service data and the PDU session data are transmitted to the forwarding device in a multiplexing manner, the target network side device does not need to transmit the multicast service data to the terminal through the PDU session for transmitting the multicast service data, thereby reducing the interruption time of the multicast service data.
As an optional implementation manner, the sending a forwarding indication to a forwarding device includes:
and sending the multicast irrelevant resource information and the forwarding indication to the forwarding device.
The multicast-independent resource information may refer to PDU session resource information, and the PDU session is a multicast-independent PDU session. The multicast irrelevant resource information is used for forwarding the multicast irrelevant PDU session data to the terminal by the target network side equipment.
Optionally, the method further includes:
and sending a forwarding indication of the multicast service to the user terminal.
The forwarding indication may refer to the corresponding description of the embodiment shown in fig. 2, which is not described herein again.
Optionally, before sending the forwarding indication to the forwarding device, the method further includes:
receiving service information of the multicast service sent by a user terminal;
wherein sending the forwarding indication to a forwarding device is sent based on the traffic information.
The service information may refer to the corresponding description of the embodiment shown in fig. 2, which is not described herein again.
The sending of the forwarding instruction to the forwarding device may be based on the service information, where the source network side device determines the forwarded multicast service based on the service information, and further sends the forwarding instruction to the forwarding device.
In this embodiment, a forwarding instruction is sent to a forwarding device, where the forwarding device includes a target network side device or a core network function; and multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment. Therefore, the target network side equipment does not need to send the multicast service data to the terminal through the PDU session for transmitting the multicast service data, and the interruption time of the multicast service data is further reduced.
Referring to fig. 4, fig. 4 is a flowchart of another method for sending multicast service data according to an embodiment of the present application, where the method is applied to a target network side device, and as shown in fig. 4, the method includes the following steps:
The receiving of the multicast service data may be receiving multicast service data and PDU session data multiplexed and transmitted by a core network function or source network side device, or may be receiving only multicast service data.
In addition, the receiving multicast service data may be received before the terminal switches to the target network side device, for example: after sending the handover request to the source network side device, the source network side device sends the multicast service data based on the request, or may send the multicast service data to the target network side device after sending the handover response to the core network function.
The multiplexing of the multicast service data and the PDU session data to the terminal may be multiplexing of the multicast service data and the PDU session data to the terminal according to multicast unrelated air interface resource information.
Further, the above-mentioned multiplexing and sending the multicast service data and the PDU session data to the terminal may be that after receiving a handover completion message or a handover confirmation message sent by the terminal, the multicast service data and the PDU session data are multiplexed and sent to the terminal based on the handover completion message or the handover confirmation message.
In this embodiment, the multicast service data and the PDU session data may be sent to the terminal in a multiplexing manner through the above steps, so that the multicast service data does not need to be sent through the PDU session for transmitting the multicast service data, and thus, the interruption time of the multicast service data may be reduced.
As an optional implementation manner, before the multiplexing and transmitting the multicast service data and the protocol data unit PDU session data to the terminal, the method further includes:
and receiving the forwarding indication of the multicast service sent by the source network side equipment or the core network function.
The forwarding indication may refer to a corresponding description of the embodiment shown in fig. 3, which is not described herein again.
Optionally, after the receiving the forwarding indication of the multicast service sent by the source network device or the core network function, the method further includes:
transmitting forwarding resource information to the source network side equipment or the core network function;
the receiving multicast service data includes:
and receiving multicast service data according to the forwarding resource information.
The forwarding resource information may be downlink forwarding receiving resource information.
In this embodiment, after receiving the forwarding resource information, the source network side device and the core network function forward the multicast service data to the target network side device according to the forwarding resource information.
As an optional implementation manner, after the target network side device sends the handover completion message to the core network function, a shared channel is established with the core network function.
The shared channel is used for multicast service data transmission, that is, after the shared channel is established, multicast service data can be sent to the terminal through the shared channel. For example: and the multicast irrelevant air interface resource is converted to the shared channel to send the multicast service data to the terminal.
Further, the target network side device may also send PDU session information to the core network function, and after the core network function receives the PDU session information and waits for a preset time, the PDU session core network resource indicated by the PDU session information is updated. And the updated PDU session core network resource is used for transmitting PDU session data, so that the target network side equipment transmits the PDU session to the terminal. The PDU session here is a multicast independent PDU session.
In this embodiment, multicast service data is received, where the multicast service data is sent by a source network side device of a core network function or a terminal; and multiplexing and sending the multicast service data and Protocol Data Unit (PDU) session data to the terminal. In this way, it is not necessary to transmit the multicast service data through the PDU session for transmitting the multicast service data, so that the interruption time of the multicast service data can be reduced.
Referring to fig. 5, fig. 5 is a flowchart of a resource updating method provided in an embodiment of the present application, where the method is applied to a core network function, and as shown in fig. 5, the method includes the following steps:
The PDU session information may be multicast unrelated PDU session information.
And 502, after waiting for a preset time, updating the PDU session core network resource indicated by the PDU session information.
The preset time may be defined by a protocol or configured by a core network.
In addition, the PDU session core network resource indicated by the PDU session information may be updated, so that the core network function sends multicast-independent PDU session data to the target network side device according to the updated resource, and the target network side device also sends multicast-independent PDU session data to the terminal by using the updated resource.
In this embodiment, due to waiting for the preset time, the target network side device may continue to send multicast service data and PDU session data to the terminal within the waiting time, so as to avoid the terminal discarding part of data due to handover.
The method provided by the embodiment of the present application is illustrated below in that a core network function sends multicast service data of a terminal through a shared channel between the core network function and a source network side device, the source network side device distributes the multicast service data to the terminal in a broadcast manner or a point-to-point manner, and the terminal has other PDU sessions in an active state (that is, the terminal is in a connected state) at the same time, and the PDU sessions are unrelated to multicast service, that is, multicast-unrelated PDU sessions, and the network side device is a gNB, and the core network function is an MB-SMF or an MB-UPF:
the first embodiment is as follows:
as shown in fig. 6, the method comprises the following steps:
step 1: the UE sends a measurement report to a source base station (source gNB), which may carry multicast service information, such as a multicast service identity (e.g., TMGI), and/or multicast service QoS information.
And 2, step: the Source gNB decides to perform handover operation and selects a target gbb (target gNB), wherein the target gbb may be based on a measurement report or candidate cell information or may be selected autonomously; and then, sending a Handover notification message, such as a Handover Required message, to the core network, where the notification message includes a forwarding indication. And the notification message may be based on the multicast service identifier, indicate that resources are required to be forwarded, and carry information unrelated to the multicast service, such as only PDU session related resource information.
And 3, step 3: a core network function (CN NF) (e.g., AMF, SMF) may reserve core network forwarding resources, such as notify the UPF to reserve an upstream forwarding tunnel, based on the handover notification message.
And 4, step 4: the CN NF sends a Handover Request, such as a Handover Request message, to the target gbb, and carries information in a Handover notification message, including information indicating that resources are required to be forwarded.
And 5: and reserving air interface resources and downlink forwarding receiving resources by the target gNB.
Step 6: and the target gNB returns a switching Response, such as a Handover Response message, to the CN NF, and can carry the downlink forwarding receiving resource information obtained in the step 5.
And 7: the CN NF, after receiving the handover response, may update the core network session resource using the downlink forwarding reception resource information, for example, notify the UPF of the downlink forwarding reception resource information.
And 8: the CN NF sends a Handover Command, such as a Handover Command message, to the source gNB, and carries the received downlink forwarding and receiving resource information or the core network forwarding resource information in step 3.
And step 9: and the source gNB receives the resource information or the core network forwarding resource information through the received downlink forwarding, and forwards the PDU session data through the forwarding channels indicated by the forwarding resources, and simultaneously forwards the multicast service data indicated by the multicast service identification through the forwarding channels.
Step 10: the source gNB sends a handover command to the UE, which may carry a multicast service forwarding indication, such as an indication that multicast service data is forwarded, or a multicast service identifier to indicate which multicast service data is forwarded.
Step 11: the UE accesses to the target gbb and sends a Handover confirmation message, such as a Handover Confirm message, to the target gbb.
Step 12: and the target gNB sends a switching completion message to the CN NF.
Step 13: if the shared channel is not established by the target gNB, the CN NF establishes the shared channel with the target gNB.
Step 14: the CN NF may wait a period of time to perform step 15 again so that the UE does not lose part of the data due to the handover.
Step 15: the CN NF sends multicast unrelated PDU sessions.
Example two:
as shown in fig. 7, the method comprises the following steps:
step 1: the UE sends a measurement report to the source gNB, which may carry multicast service information, such as a multicast service identity (e.g., TMGI), and/or multicast service QoS information.
Step 2: the Source gNB decides to perform Handover operation, selects a target gNB (which may be based on a measurement report or candidate cell information, or may be selected autonomously), and sends a Handover Request message, such as a Handover Request message, to the target gNB, where the Handover Request message indicates that resources are required to be forwarded based on a multicast service identifier and carries information unrelated to the multicast service, such as only PDU session related resource information.
And step 3: and reserving air interface resources and downlink forwarding receiving resources by the target gNB.
And 4, step 4: and the target gNB returns a switching Response to the Source gNB, such as a Handover Response message, which carries the downlink forwarding receiving resource.
And 5: and the Source gNB receives the resource information or the core network forwarding resource information through the received downlink forwarding, and forwards the PDU session data through the forwarding channels indicated by the forwarding resources, and at the same time forwards the multicast service data indicated by the multicast service identification through the forwarding channels.
Step 6: the source gNB sends a handover command to the UE, which may carry a multicast service forwarding indication, such as an indication that multicast service data is forwarded, or a multicast service identifier indicating which multicast service data is forwarded.
And 7: the UE accesses to the target gbb and sends a Handover confirmation message, such as a Handover Confirm message, to the target gbb.
And 8: and the target gNB sends a switching completion message to the CN NF.
And step 9: if the target gNB does not establish the shared channel, the CN NF establishes the shared channel with the target gNB.
Step 10: the CN NF may wait a period of time to perform step 15 again so that the UE does not lose part of the data due to the handover.
Step 11: the CN NF sends a multicast independent PDU session.
Example three:
as shown in fig. 8, the method comprises the following steps:
step 1: the UE sends a measurement report to the source gNB, which may carry multicast service information, such as a multicast service identity (e.g., TMGI), and/or multicast service QoS information.
And 2, step: the Source gNB decides to perform Handover operation, selects a target gNB (which may be based on a measurement report or candidate cell information, or may be selected autonomously), and sends a Handover Request message, such as a Handover Request message, to the target gNB, where the Handover Request message indicates that resources are required to be forwarded based on a multicast service identifier and carries information unrelated to the multicast service, such as only PDU session related resource information.
And 3, step 3: and reserving air interface resources and downlink forwarding receiving resources by the target gNB.
And 4, step 4: and the target gNB returns a switching Response to the Source gNB, such as a Handover Response message, which carries the downlink forwarding receiving resource.
And 5: and the Source gNB forwards and receives the resource information through the received multicast, and forwards the multicast service data through a forwarding channel indicated by the multicast forwarding resource.
And 6: and the target gNB receives the forwarded multicast service data, multiplexes the multicast service data and PDU session data, and sends the multiplexed data and PDU session data to the terminal through a PDU session air interface resource irrelevant to the multicast service.
And 7: the source gNB sends a handover command to the UE, which may carry a multicast service forwarding indication, such as an indication that multicast service data is forwarded, or a multicast service identifier indicating which multicast service data is forwarded.
And 8: the UE accesses to the target gbb and sends a Handover confirmation message, such as a Handover Confirm message, to the target gbb.
And step 9: and the target gNB sends a switching completion message to the CN NF.
Step 10: if the shared channel is not established by the target gNB, the CN NF establishes the shared channel with the target gNB.
Step 11: the CN NF may wait a period of time to perform step 15 again so that the UE does not lose part of the data due to the handover.
Step 12: the CN NF sends a multicast independent PDU session.
Referring to fig. 9, fig. 9 is a structural diagram of a multicast service data receiving apparatus according to an embodiment of the present application, where the apparatus is applied to a terminal, and as shown in fig. 9, the multicast service data receiving apparatus 900 includes:
a first receiving module 901, configured to receive multicast-independent air interface resource information from a source network device;
a second receiving module 902, configured to receive, according to the multicast-unrelated air interface resource information, multicast service data sent by a target network side device.
Optionally, the apparatus further comprises:
and the third receiving module is used for receiving the forwarding indication of the multicast service sent by the source network side device.
Optionally, the forwarding indication is sent by a handover command.
Optionally, the apparatus further comprises:
and the sending module is used for sending the service information of the multicast service to the source network side equipment.
Optionally, the second receiving module 902 is configured to receive, according to the multicast unrelated air interface resource information, multicast service data and protocol data unit PDU session data that are multiplexed and transmitted by the target network device.
The multicast service data receiving apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of fig. 2, and for avoiding repetition, details are not described here, and the interruption time of multicast service data can be reduced.
It should be noted that the multicast service data receiving apparatus in the embodiment of the present application may be an apparatus, and may also be a component, an integrated circuit, or a chip in a terminal.
Referring to fig. 10, fig. 10 is a structural diagram of a multicast service data transmitting apparatus according to an embodiment of the present application, where the apparatus is applied to a source network side device, and as shown in fig. 10, a multicast service data transmitting apparatus 1000 includes:
a first sending module 1001, configured to send a forwarding instruction to a forwarding device, where the forwarding device includes a target network side device or a core network function;
a second sending module 1002, configured to multiplex and transmit the multicast service data and protocol data unit PDU session data to the forwarding device.
Optionally, the first sending module 1001 is configured to send the multicast-independent resource information and the forwarding indication to the forwarding device.
Optionally, the apparatus further comprises:
and the third sending module is used for sending the forwarding indication of the multicast service to the user terminal.
Optionally, the apparatus further comprises:
the receiving module is used for receiving the service information of the multicast service sent by the user terminal;
wherein sending the forwarding indication to a forwarding device is sent based on the traffic information.
The multicast service data sending apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of fig. 2, and for avoiding repetition, details are not described here again, and the interruption time of multicast service data can be reduced.
It should be noted that the multicast service data transmitting apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in the source network side device.
Referring to fig. 11, fig. 11 is a structural diagram of a multicast service data transmitting apparatus according to an embodiment of the present application, where the apparatus is applied to a target network device, and as shown in fig. 11, the multicast service data transmitting apparatus 1100 includes:
a first receiving module 1101, configured to receive multicast service data, where the multicast service data is sent by a core network function or a source network side device of a terminal;
a first sending module 1102, configured to send the multicast service data and the PDU session data to the terminal in a multiplexing manner.
Optionally, the apparatus further comprises:
a second receiving module, configured to receive a forwarding indication that the source network device or the core network function sends the multicast service.
Optionally, the apparatus further comprises:
a second sending module, configured to send forwarding resource information to the source network side device or the core network function;
optionally, the first receiving module 1101 is configured to receive multicast service data according to the forwarding resource information.
The multicast service data sending apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of fig. 2, and for avoiding repetition, details are not described here again, and the interruption time of multicast service data can be reduced.
It should be noted that the multicast service data transmitting apparatus in the embodiment of the present application may be an apparatus, and may also be a component, an integrated circuit, or a chip in a target network side device.
Referring to fig. 12, fig. 12 is a structural diagram of a resource updating apparatus according to an embodiment of the present application, where the apparatus is applied to a core network function, as shown in fig. 12, and includes:
a receiving module 1201, configured to receive PDU session information sent by a target network side device;
an updating module 1202, configured to update the PDU session core network resource indicated by the PDU session information after waiting for a preset time.
The multicast service data sending apparatus provided in the embodiment of the present invention can implement each process in the method embodiment of fig. 2, and for avoiding repetition, details are not described here again, and the interruption time of multicast service data can be reduced.
It should be noted that the multicast service data transmitting apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a core network function.
Fig. 13 is a schematic hardware structure diagram of a terminal implementing the embodiment of the present application.
The terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 13013, a processor 1310, and the like.
Those skilled in the art will appreciate that terminal 1300 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to processor 1310 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The electronic device structure shown in fig. 13 does not constitute a limitation to the electronic device, and the electronic device may include more or less components than those shown in the drawings, or combine some components, or arrange different components, and thus, the description is omitted here.
The radio frequency unit 1301 is configured to:
receiving multicast irrelevant air interface resource information from source network side equipment;
and receiving the multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information.
Optionally, before receiving the multicast service data sent by the target network side device according to the multicast-independent air interface resource information, the radio frequency unit 1301 is further configured to:
and receiving a forwarding indication of the multicast service sent by the source network side equipment.
Optionally, the forwarding indication is sent by a handover command.
Optionally, before receiving the multicast service data sent by the target network side device according to the multicast-independent air interface resource information, the radio frequency unit 1301 is further configured to:
and sending the service information of the multicast service to the source network side equipment.
Optionally, the receiving, according to the multicast-independent air interface resource information, a multicast service sent by a target network side device includes:
and receiving the multicast service data and Protocol Data Unit (PDU) session data multiplexed and transmitted by the target network side equipment according to the multicast irrelevant air interface resource information.
The embodiment can reduce the interruption time of the multicast service.
Optionally, an embodiment of the present invention further provides a terminal, including a processor 1310, a memory 13013, and a program or an instruction stored in the memory 13013 and capable of being executed on the processor 1310, where the program or the instruction is executed by the processor 1310 to implement each process of the foregoing multicast service data receiving method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
Referring to fig. 14, fig. 14 is a structural diagram of a network side device according to an embodiment of the present invention, and as shown in fig. 14, the network side device 1400 includes: a processor 1401, a transceiver 1402, a memory 1403, and a bus interface, wherein:
in an embodiment, the network-side device is a source network-side device, and the transceiver 1402 is configured to:
sending a forwarding indication to forwarding equipment, wherein the forwarding equipment comprises target network side equipment or a core network function;
and multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment.
Optionally, the sending a forwarding instruction to the forwarding device includes:
and sending the multicast irrelevant resource information and the forwarding indication to the forwarding device.
Optionally, the transceiver 1402 is further configured to:
and sending a forwarding indication of the multicast service to the user terminal.
Optionally, before sending the forwarding indication to the forwarding device, the transceiver 1402 is further configured to:
receiving service information of the multicast service sent by a user terminal;
wherein sending the forwarding indication to a forwarding device is sent based on the traffic information.
In another embodiment, the network side device is a target network side device, and the transceiver 1402 is configured to:
receiving multicast service data, wherein the multicast service data is sent by a core network function or source network side equipment of a terminal;
and multiplexing and sending the multicast service data and Protocol Data Unit (PDU) session data to the terminal.
Optionally, before the multiplexing and sending the multicast service data and the protocol data unit PDU session data to the terminal, the transceiver 1402 is further configured to:
and receiving the forwarding indication of the multicast service sent by the source network side equipment or the core network function.
Optionally, after receiving the forwarding indication of the multicast service sent by the source network side device or the core network function, the transceiver 1402 is further configured to:
transmitting forwarding resource information to the source network side equipment or the core network function;
the receiving multicast service data includes:
and receiving multicast service data according to the forwarding resource information.
The embodiment can reduce the interruption time of the multicast service.
Wherein the transceiver 1402 is configured to receive and transmit data under the control of the processor 1401, the transceiver 1402 comprising at least two antenna ports.
In fig. 14, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1401, and various circuits, represented by memory 1403, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1402 may be a plurality of elements including a transmitter and a receiver providing a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1404 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 1401 is responsible for managing a bus architecture and general processing, and the memory 1403 may store data used by the processor 1401 in performing operations.
Preferably, an embodiment of the present invention further provides a network-side device, including a processor 1401, a memory 1403, and a program or an instruction stored in the memory 1403 and capable of being executed on the processor 1401, where the program or the instruction is executed by the processor 1401 to implement each process of the foregoing multicast service data transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
Referring to fig. 15, fig. 15 is a structural diagram of a core network function according to an embodiment of the present invention, and as shown in fig. 15, the network side device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, and a bus interface, wherein:
a transceiver 1502 for: receiving PDU session information sent by target network side equipment;
and after waiting for a preset time, updating the PDU session core network resource indicated by the PDU session information.
According to the embodiment, the interruption time of the multicast service can be reduced.
Wherein the transceiver 1502 is configured to receive and transmit data under the control of the processor 1501, the transceiver 1502 includes at least two antenna ports.
In fig. 15, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, in particular, one or more processors represented by processor 1501 and memory represented by memory 1503. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1502 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1504 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 may store data used by the processor 1501 in performing operations.
Preferably, the embodiment of the present invention further provides a core network function, which includes a processor 1501, a memory 1503, and a program or an instruction stored in the memory 1503 and executable on the processor 1501, where the program or the instruction is executed by the processor 1501 to implement each process of the foregoing resource updating method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and the program or the instruction, when executed by a processor, implements the steps in the method for receiving multicast service data provided in the embodiment of the present application, or the program or the instruction, when executed by the processor, implements the steps in the method for sending multicast service data of a source network side device provided in the embodiment of the present application, or the program or the instruction, when executed by the processor, implements the steps in the method for sending multicast service data of a target network side device provided in the embodiment of the present application, or the program or the instruction, when executed by the processor, implements the steps in the method for updating resources provided in the embodiment of the present application.
The embodiment of the present application further provides a program product, where the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the steps in the multicast service data receiving method provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the multicast service data sending method of the source network side device provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the multicast service data sending method of the target network side device provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the resource updating method provided in the embodiment of the present application.
The processor is the processor in the terminal or the network device in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above embodiments of the multicast service data receiving method, the multicast service data sending method, or the resource updating method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, or a system-on-chip.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (25)
1. A method for receiving multicast service data is applied to a terminal, and is characterized by comprising the following steps:
receiving multicast-independent air interface resource information from source network side equipment, wherein the multicast-independent air interface resource comprises air interface resources used for non-multicast service transmission;
and receiving multicast service data sent by target network side equipment according to the multicast irrelevant air interface resource information.
2. The method according to claim 1, wherein before receiving, according to the multicast-independent air interface resource information, multicast service data sent by a target network side device, the method further includes:
and receiving a forwarding indication of the multicast service sent by the source network side equipment.
3. The method of claim 2, wherein the forwarding indication is sent via a handover command.
4. The method according to claim 1, wherein before receiving, according to the multicast-independent air interface resource information, multicast service data sent by a target network side device, the method further includes:
and sending the service information of the multicast service to the source network side equipment.
5. The method according to claim 1, wherein the receiving, according to the multicast-independent air interface resource information, a multicast service sent by a target network side device includes:
and receiving multicast service data and Protocol Data Unit (PDU) session data which are multiplexed and transmitted by target network side equipment according to the multicast irrelevant air interface resource information, wherein the PDU session data comprise multicast irrelevant PDU session data.
6. A method for sending multicast service data is applied to source network side equipment, and is characterized by comprising the following steps:
sending a forwarding indication to forwarding equipment, wherein the forwarding equipment comprises target network side equipment or a core network function;
and multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment, wherein the PDU session data comprises multicast unrelated PDU session data.
7. The method of claim 6, wherein said sending a forwarding indication to a forwarding device comprises:
and sending the multicast irrelevant resource information and the forwarding indication to the forwarding device.
8. The method of claim 7, wherein the method further comprises:
and sending a forwarding indication of the multicast service to the user terminal.
9. The method of claim 6, wherein prior to sending the forwarding indication to the forwarding device, the method further comprises:
receiving service information of the multicast service sent by a user terminal;
wherein sending the forwarding indication to a forwarding device is sent based on the traffic information.
10. A method for sending multicast service data is applied to target network side equipment, and is characterized by comprising the following steps:
receiving multicast service data, wherein the multicast service data is sent by a core network function or source network side equipment of a terminal;
and multiplexing and sending the multicast service data and Protocol Data Unit (PDU) session data to the terminal, wherein the PDU session data comprises multicast unrelated PDU session data.
11. The method of claim 10, wherein prior to said multiplexing transmission of the multicast service data and protocol data unit, PDU, session data to the terminal, the method further comprises:
and receiving a forwarding instruction of the multicast service sent by the source network side equipment or the core network function.
12. The method of claim 11, wherein after the receiving the forwarding indication of the multicast service sent by the source network-side device or the core network function, the method further comprises:
transmitting forwarding resource information to the source network side equipment or the core network function;
the receiving multicast service data includes:
and receiving multicast service data according to the forwarding resource information.
13. A resource updating method is applied to a core network function, and is characterized by comprising the following steps:
receiving PDU session information sent by target network side equipment;
and after waiting for a preset time, updating the PDU session core network resource indicated by the PDU session information so that the target network side equipment continues to multiplex and send multicast service data and protocol data unit PDU session data to the terminal within the waiting time, wherein the PDU session data comprises multicast irrelevant PDU session data.
14. A multicast service data receiving device applied to a terminal is characterized by comprising:
a first receiving module, configured to receive multicast-independent air interface resource information from a source network side device, where the multicast-independent air interface resource includes an air interface resource used for non-multicast service transmission;
and the second receiving module is used for receiving the multicast service data sent by the target network side equipment according to the multicast irrelevant air interface resource information.
15. The apparatus of claim 14, wherein the apparatus further comprises:
and the third receiving module is used for receiving the forwarding indication of the multicast service sent by the source network side device.
16. A multicast service data transmission device is applied to source network side equipment, and is characterized by comprising:
a first sending module, configured to send a forwarding instruction to a forwarding device, where the forwarding device includes a target network side device or a core network function;
and the second sending module is used for multiplexing and transmitting the multicast service data and Protocol Data Unit (PDU) session data to the forwarding equipment, wherein the PDU session data comprises multicast irrelevant PDU session data.
17. The apparatus of claim 16, wherein the first sending module is configured to send multicast independent resource information and a forwarding indication to a forwarding device.
18. A multicast service data transmission device is applied to a target network side device, and is characterized by comprising:
the first receiving module is used for receiving multicast service data, wherein the multicast service data is sent by a core network function or source network side equipment of a terminal;
a first sending module, configured to send the multicast service data and PDU session data of a protocol data unit to the terminal in a multiplexing manner, where the PDU session data includes multicast-independent PDU session data.
19. The apparatus of claim 18, wherein the apparatus further comprises:
a second receiving module, configured to receive a forwarding indication that the source network device or the core network function sends the multicast service.
20. A resource updating apparatus applied to a core network function, comprising:
the receiving module is used for receiving PDU session information sent by target network side equipment;
and the updating module is used for updating the PDU session core network resource indicated by the PDU session information after waiting for the preset time, so that the target network side equipment continues to multiplex and send multicast service data and protocol data unit PDU session data to the terminal within the waiting time.
21. A terminal, comprising: memory, processor and program or instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps in the multicast service data receiving method according to any of claims 1 to 5.
22. A network side device, which is a source network side device, includes: memory, processor and program or instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps in the method for multicast service data transmission according to any of claims 6 to 9.
23. A network side device, which is a target network side device, is characterized by comprising: memory, processor and program or instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps in the method for multicast service data transmission according to any of claims 10 to 12.
24. A core network function, comprising: memory, processor and program or instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps in the resource updating method of claim 13.
25. Readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps in the multicast service data receiving method according to any one of claims 1 to 5, or which when executed by a processor implement the steps in the multicast service data sending method according to any one of claims 6 to 9, or which when executed by a processor implement the steps in the multicast service data sending method according to any one of claims 10 to 12, or which when executed by a processor implement the steps in the resource updating method according to claim 13.
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