WO2023010994A1 - 一种网络切片接入控制方法及通信装置 - Google Patents
一种网络切片接入控制方法及通信装置 Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
Definitions
- the present application relates to the field of communication technologies, and in particular to a network slice access control method and a communication device.
- Network slicing is to divide the physical network into multiple independent logical networks according to the requirements of different business applications on the number of users, quality of service (QoS), and bandwidth.
- 3GPP introduces the network slice admission control function (network slice admission control function, NSACF) to determine whether the number of user equipment (UE) in the network slice has reached the maximum number of UEs supported by the network slice, and to determine whether the network slice Whether the number of packet data unit (PDU) sessions in the network slice reaches the maximum number of PDU sessions supported by the network slice.
- network slice admission control function network slice admission control function
- the access and mobility management function (AMF) network element can notify the NSACF of the number of UEs in the network slice before or after the registration is accepted. plus one.
- the UE de-registers, or receives a de-registration notification from a unified data management (UDM) network element it notifies the NSACF that the number of UEs in the network slice is reduced by one.
- UDM unified data management
- the session management function (SMF) will notify the NSACF to add one to the number of PDU sessions for the network slice.
- SMF session management function
- SMF will notify NSACF that the number of PDU sessions for the network slice is reduced by one.
- the NSACF finds that the number of UEs in the network slice reaches the maximum number of UEs supported by the network slice, it will notify the AMF that the quota has been reached.
- the AMF will set the S-NSSAI corresponding to the network slice as rejected (rejected) NSSAI, that is, the AMF will subsequently deny the UE access to the network slice.
- the NSACF finds that the number of PDU sessions in the network slice reaches the maximum number of PDU sessions supported by the network slice, it will notify the SMF that the quota has been reached. SMF will refuse to establish a PDU session in this network slice.
- Network slice registration and PDU session establishment related to priority services should not be affected by network slice access control.
- the AMF determines that the network slice can be exempted from NSAC, that is, the number of UEs in the network slice is not limited.
- the UE may receive a priority header from the AMF during PDU session establishment when the registration type of the network slice indicates emergency registration.
- SMF determines the network slice where the PDU session resides based on the priority header, which can be exempted from NSAC, that is, the number of PDU sessions of the network slice is not limited.
- the AMF/SMF has no way of judging that the UE or PDU session is used to deliver priority services, and the priority services may be interrupted or unable to be initiated due to slice access control.
- Embodiments of the present application provide a network slice access control method and a communication device, which are beneficial to avoid interruption or inability to initiate priority services.
- the present application provides a network slice access control method, the method comprising: a session management function network element receives second information from a policy control function network element or a unified data storage library or a unified data management function network element; Based on the second information, the management function network element makes the first packet data unit PDU session in the first network slice or the first network slice not subject to network slice access control.
- the session management function network element can timely make the first PDU session or the first network Slices are not subject to network slice access control, thereby avoiding interruption or inability to initiate priority services.
- the second information is used to indicate the first PDU session or the first network slice or the associated priority service of the terminal device corresponding to the first PDU session, or the second information is the allocation corresponding to the first PDU session and
- the value of the second information is the first value.
- the first PDU session-associated priority service may refer to: the first PDU session is delivering priority services, or the first PDU session currently does not deliver priority services, but will deliver priority services in the future (i.e. the first PDU sessions may pass priority traffic).
- the first network slice associated with priority services may refer to: the first network slice is delivering priority services, or the first network slice is currently not delivering priority services, but will deliver priority services in the future (that is, first The network slice may deliver the priority service), or, the first network slice may use the contracted priority service.
- the terminal equipment associated with priority services may refer to: the terminal equipment is delivering priority services, or the terminal equipment is currently not delivering priority services, but will deliver priority services in the future (that is, the terminal equipment may deliver priority services ), or the terminal equipment can use the subscribed priority service.
- the session management function network element sends third information to the access and mobility management function network element based on the second information, where the third information is used to indicate the first PDU session or the first network slice or the first PDU session A terminal device corresponding to a PDU session is associated with priority services.
- the network element with the access and mobility management function can promptly prevent the terminal device corresponding to the first PDU session from the third information based on the third information. Access control for a network slice, or make the first network slice exempt from access control.
- the specific implementation manner in which the session management function network element prevents the first PDU session or the first network slice in the first network slice from access control of the network slice is as follows:
- the session management function network element When the number of PDU sessions of the first network slice reaches the threshold of the number of PDU sessions corresponding to the first network slice, the session management function network element does not refuse to establish the first PDU session; and/or,
- the session management function network element does not instruct the network slice admission control function network element to add one to the number of PDU sessions of the first network slice; and/or,
- the session management function network element instructs the network slice admission control function network element to reduce the number of PDU sessions of the first network slice by one; and/or,
- the network element with the session management function indicates to the network element with the network slice admission control function that the first network slice is not subject to network slice access control.
- the session management function network element may also Receive the fifth information from the policy control function network element or the unified data storage library or the unified data management function network element; based on the fifth information, the session management function network element enables the first PDU session or the first network slice to (re) accept the network slice acceptance into control.
- the network element with the session management function can timely enable the first PDU session or the first network slice to be controlled based on the fifth information sent by the network element with the policy control function or the unified data repository or the network element with the unified data management function.
- Network slice access control can timely enable the first PDU session or the first network slice to be controlled based on the fifth information sent by the network element with the policy control function or the unified data repository or the network element with the unified data management function.
- the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services, or the fifth information is the In allocating and preempting priority ARP, the value of the fifth information is the second value.
- the specific implementation manner in which the session management function network element makes the first PDU session or the first network slice subject to network slice access control is as follows: the session management function network element indicates to the network slice admission control function network element Adding one to the number of PDU sessions of the first network slice; and/or, the session management function network element instructs the network slice admission control function network element to make the first network slice subject to network slice access control.
- the session management function network element sends sixth information to the access and mobility management function network element based on the fifth information, where the sixth information is used to indicate that the first PDU session or the first network slice is not associated Priority business.
- the access and mobility management function network element after the access and mobility management function network element receives the sixth information, it can promptly make the terminal device corresponding to the first PDU session subject to the access control of the first network slice based on the sixth information, or make the The first network slice is subject to access control.
- the present application provides a network slice access control method, the method includes: when establishing a first PDU session, the session management function network element prevents the first PDU session from network slice access control; if the session management If the functional network element does not receive the second information within a preset time period after establishing the first PDU session, the first PDU session is subject to network slice access control; wherein the second information comes from the policy control functional network element or A unified data storage library or a unified data management function network element, the second information indicates the first PDU session in the first network slice or the terminal device associated priority service corresponding to the first network slice or the first PDU session, or, the The second information is the allocation and preemption priority ARP corresponding to the first PDU session, and the value of the second information is the first value.
- the network element with the session management function when establishing the first PDU session, makes the first PDU session not subject to network slice access control by default. There is no need to instruct the network slice admission control function network element to add one to the PDU session number of the first network slice after the first PDU session, and after receiving the second information, instruct the network slice admission control function network element to The number of PDU sessions of the first network slice is reduced by one. It is beneficial to reduce signaling interaction.
- the network element with the session management function if the network element with the session management function receives the second information within a preset time period after establishing the first PDU session, the network element with the session management function sends a request to the access and The mobility management function network element sends third information, where the third information is used to indicate the first PDU session or the first network slice or the terminal device corresponding to the first PDU session to associate priority services.
- the network element with the access and mobility management function can promptly prevent the terminal device corresponding to the first PDU session from the third information based on the third information. Access control for a network slice, or make the first network slice exempt from access control.
- the specific implementation manner in which the session management function network element prevents the first PDU session from access control of the network slice is: when the number of PDU sessions in the first network slice reaches the number of PDU sessions corresponding to the first network slice When the threshold is reached, the session management functional network element does not refuse to establish the first PDU session; and/or does not instruct the network slice admission control functional network element to add one to the number of PDU sessions in the first network slice.
- the specific implementation manner in which the session management function network element makes the first PDU session subject to network slice access control is as follows: the session management function network element instructs the network slice admission control function network element that the first network slice The number of PDU sessions plus one.
- the session management function network element if the session management function network element receives the fifth information after receiving the second information, the session management function network element makes the first PDU session subject to network slice access control based on the fifth information;
- the fifth information comes from the policy control function network element or the unified data storage library or the unified data management function network element, and the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session has no associated priority
- the fifth information is the allocation and preemption priority ARP corresponding to the first PDU session, and the value of the fifth information is the second value.
- the session management function network element can timely make the first PDU session or the first network slice subject to network slice access control based on the fifth information sent by the policy control function network element.
- the session management function network element sends sixth information to the access and mobility management function network element based on the fifth information, where the sixth information is used to indicate the first PDU session or the first network slice or the first PDU session
- the terminal equipment corresponding to a PDU session is not associated with priority services.
- the access and mobility management function network element after the access and mobility management function network element receives the sixth information, it can promptly make the terminal device corresponding to the first PDU session subject to the access control of the first network slice based on the sixth information, or make the The first network slice is subject to access control.
- the present application provides a network slice access control method, the method comprising: the access and mobility management function network element receives the third Information, the third information is used to indicate the first PDU session in the first network slice or the first network slice or the terminal device associated priority service, the terminal device is the terminal device corresponding to the first PDU session, or the terminal device It is a terminal device requesting to register with the first network slice; based on the third information, the access and mobility management functional network element prevents the terminal device from access control of the first network slice, or prevents the first network slice from being accessed control.
- the network element with the access and mobility management function can timely prevent the terminal device or the first network slice from the network when the first PDU session or the first network slice or the terminal device is associated with priority services Slice access control to avoid interruption or inability to initiate priority services.
- the network element with the access and mobility management function prevents the terminal device from the access control of the first network slice, or the specific implementation manner of preventing the first network slice from the access control is as follows:
- the access and mobility management functional network element instructs the network slice admission control functional network element to reduce the number of terminal devices in the first network slice by one; and/or;
- the access and mobility management functional network element When the number of terminal devices in the first network slice reaches the threshold of the number of terminal devices corresponding to the first network slice, the access and mobility management functional network element does not reject the first network slice requested by the terminal device; and/or,
- the access and mobility management functional network element does not instruct the network slice admission control functional network element to increase the number of terminal devices in the first network slice by one; and/or,
- the access and mobility management functional network element indicates to the network slice admission control functional network element that the first network slice is not subject to network slice access control.
- the access and mobility management function network element receives sixth information from the session management function network element or the unified data repository or the unified data management function network element, and the sixth information is used to indicate that the first PDU session Or the first network slice or the terminal device is not associated with priority services; the access and mobility management function network element, based on the sixth information, makes the terminal device subject to the access control of the first network slice, or makes the first network slice subject to access control .
- the access and mobility management function network element can make the terminal device subject to the access control of the first network slice in time, or make the first network slice Network slices are subject to access control.
- the network element with the access and mobility management function makes the terminal device subject to the access control of the first network slice, or the specific implementation manner of making the first network slice subject to the access control is as follows:
- the access and mobility management functional network element instructs the network slice admission control functional network element to increase the number of terminal devices in the first network slice by one; and/or;
- the access and mobility management functional network element indicates to the network slice admission control functional network element that the first network slice is subject to network slice access control.
- the present application provides a network slice access control method, the method comprising: a network element with a policy control function receives first information from a network element with an application function or a unified data storage library or a network element with a unified data management function; The functional network element sends the second information to the session management functional network element based on the first information; wherein the first information is used to indicate that the first packet data unit PDU session in the first network slice or the first network slice or the first PDU session corresponds to The terminal device is associated with priority services; the second information is used by the session management function network element to make the first packet data unit PDU session in the first network slice or the first network slice not subject to network slice access control.
- the session management function network element can use The first PDU session or the first network slice is not subject to network slice access control, so as to avoid interruption or failure to initiate priority services.
- the second information is used to indicate the first PDU session or the first network slice or the terminal device associated priority service corresponding to the first PDU session, or the second information is the allocation corresponding to the first PDU session With the preemption priority ARP, the value of the second information is the first value.
- the policy control function network element may also receive the second information from the application function network element or the unified data storage library or the unified data management function network element.
- Fourth information the policy control function network element sends fifth information to the session management function network element based on the fourth information; where the fourth information is used to indicate the first PDU session or the first network slice or the terminal device corresponding to the first PDU session The priority service is not associated; the fifth information is used to make the first PDU session or the first network slice subject to network slice access control.
- the session management function network element can timely make the first PDU session A PDU session or a first network slice is subject to network slice access control.
- the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services, or the fifth information is the In allocating and preempting priority ARP, the value of the fifth information is the second value.
- the present application provides a communication device.
- the communication device may be a session management function network element, or a device in a session management function network element, or a device that can be matched with a session management function network element.
- the communication device may also be a system on a chip.
- the communication device may execute the method described in the first aspect or the second aspect.
- the functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the unit or module can be software and/or hardware.
- the present application provides a communication device, which may be a network element with access and mobility management function, or a device in a network element with access and mobility management function, or a communication device capable of communicating with access and mobility
- the management function network element matches the device used.
- the communication device may also be a system on a chip.
- the communication device can execute the method described in the third aspect.
- the functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the unit or module can be software and/or hardware.
- the present application provides a communication device.
- the communication device may be a network element with a policy control function, or a device in a network element with a policy control function, or a device that can be used in conjunction with a network element with a policy control function.
- the communication device may also be a system on a chip.
- the communication device can execute the method described in the fourth aspect.
- the functions of the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the unit or module can be software and/or hardware.
- the present application provides a communication device, the communication device includes a processor, and when the processor calls the computer program in the memory, the method according to any one of the first aspect to the fourth aspect is executed .
- the present application provides a communication device, the communication device includes a processor and a memory, and the processor and the memory are coupled; the processor is used to implement the method according to any one of the first aspect to the fourth aspect.
- the present application provides a communication device.
- the communication device includes a processor, a memory, and a transceiver, and the processor and the memory are coupled; the transceiver is used to send and receive data, and the processor is used to implement any of the following aspects in the first to fourth aspects. one method.
- the present application provides a communication device, the communication device includes a processor and an interface, the processor is coupled to the interface; the interface is used to receive or output signals, and the processor is used to execute code instructions, so that the The method of any one of the first aspect to the fourth aspect is performed.
- the present application provides a computer-readable storage medium, where computer programs or instructions are stored in the storage medium.
- the computer programs or instructions are executed by a communication device, the first to fourth aspects can be implemented. The method described in any one of the aspects.
- the present application provides a computer program product including an instruction.
- the communication device reads and executes the instruction, the communication device executes the method according to any one of the first aspect to the fourth aspect.
- the present application provides a communication system, including a communication device for performing the method described in the first aspect or the second aspect above, and a communication device for performing the method described in the fourth aspect above.
- the present application provides a communication system, including a communication device for performing the method described in the first aspect or the second aspect above, and a communication device for performing the method described in the third aspect above.
- FIG. 1 is a schematic diagram of a 5G non-roaming system architecture based on a service interface provided by an embodiment of the present application;
- FIG. 2 is a schematic diagram of a 5G non-roaming reference point-based system architecture provided by an embodiment of the present application
- FIG. 3 is a schematic diagram of a system architecture based on a service interface in a roaming scenario of a local breakout (LBO) provided by an embodiment of the present application;
- LBO local breakout
- FIG. 4 is a schematic diagram of a system architecture based on a reference point in an LBO roaming scenario provided by an embodiment of the present application;
- FIG. 5 is a schematic diagram of a system architecture based on a service interface in a roaming scenario of a home routed (HR) provided by an embodiment of the present application;
- FIG. 6 is a schematic diagram of a system architecture based on a reference point in an HR roaming scenario provided by an embodiment of the present application
- FIG. 7 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 8 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 9 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 10 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 11 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application.
- FIG. 12 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 13 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application.
- FIG. 14 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 15 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application.
- FIG. 16 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application.
- FIG. 17 is a schematic flowchart of a network slice access control method provided in an embodiment of the present application.
- FIG. 18 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application.
- FIG. 19 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 20 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- FIG. 21 is a schematic structural diagram of a chip provided by an embodiment of the present application.
- At least one (item) means one or more
- multiple means two or more
- at least two (items) means two or three and three
- “and/or” is used to describe the corresponding relationship between associated objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A exists, only B exists, and A and B exist simultaneously. A case where A and B can be singular or plural.
- the character “/” generally indicates that the contextual objects are an "or” relationship.
- At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
- At least one item (piece) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c ", where a, b, c can be single or multiple.
- FIG. 1 is a schematic diagram of a 5G non-roaming system architecture based on a service interface provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of a 5G non-roaming reference point-based system architecture provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of a system architecture based on a service interface in a local breakout (LBO) roaming scenario provided by an embodiment of the present application.
- LBO local breakout
- FIG. 4 is a schematic diagram of a reference point-based system architecture in an LBO roaming scenario provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of a system architecture based on a service interface in a home routed (HR) roaming scenario provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of a reference point-based system architecture in an HR roaming scenario provided by an embodiment of the present application.
- the system architecture shown in Figures 1 to 6 is divided into terminal equipment, operator network and data network (data network, DN).
- a terminal device can also be called a user equipment (UE).
- the terminal device in the embodiment of the present application is a device with a wireless transceiver function, which can communicate with one or more core networks (core network, CN) via an access network device in an access network (AN) .
- a terminal device may also be called an access terminal, terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network equipment, user agent, or user device, among others.
- Terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as on aircraft, balloons, and satellites, etc.).
- the terminal device can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a mobile phone, a wireless local loop (WLL) station , personal digital assistant (PDA), which can be a handheld device with wireless communication function, a computing device or other device connected to a wireless modem, a vehicle device, a wearable device, a drone device or the Internet of Things, the Internet of Vehicles Terminals in the fifth generation mobile communication (fifth generation, 5G) network and any form of terminal in the future network, relay user equipment or terminals in the future evolution of the public land mobile network (PLMN) etc., where the relay user equipment may be, for example, a 5G residential gateway (residential gateway, RG).
- 5G fifth generation mobile communication
- PLMN public land mobile network
- the terminal device can be a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), telemedicine Wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, and smart home wireless terminals, etc.
- VR virtual reality
- AR augmented reality
- WLAN wireless terminal in industrial control
- self driving self driving
- telemedicine Wireless terminals in remote medical wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, and smart home wireless terminals, etc.
- the embodiment of the present application does not limit this.
- the operator network can include network slice selection function (network slice selection function, NSSF), network exposure function (network exposure function, NEF), network storage function (network function repository function, NRF), policy control function (policy control function, PCF), unified data management (unified data management, UDM) network element, application function (application function, AF), network slice and SNPN authentication and authorization function (NSSAAF), authentication server function (authentication server function, AUSF), access Access and mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), service communication proxy (service communication prox, SCP), network slice admission control function (network slice admission control function , NSACF), user plane function (user plane function, UPF), unified data repository (unified data repository, UDR) and (wireless) access network ((radio) access network, (R) AN), etc.
- network slice selection function network slice selection function, NSSF
- network exposure function network exposure function, NEF
- network storage function network function repository function, NRF
- policy control function
- This application mainly involves AF network elements, PCF network elements, SMF network elements, AMF network elements, NSACF network elements, UDM network elements and UDR.
- AF network elements PCF network elements
- SMF network elements SMF network elements
- AMF network elements SMF network elements
- NSACF network elements SMF network elements
- UDM network elements UDR.
- AF network element It mainly supports interaction with the 3GPP core network to provide services, such as influencing data routing decisions, policy control functions, or providing some third-party services to the network side.
- PCF network element mainly supports the provision of a unified policy framework to control network behavior, provides policy rules to the control layer network functions, and is responsible for obtaining user subscription information related to policy decisions.
- SMF network element mainly responsible for session management in the mobile network, such as session establishment, modification, and release. Specific functions include assigning IP addresses to users, selecting UPF that provides message forwarding functions, and so on.
- AMF network element mainly responsible for mobility management in the mobile network, such as user location update, user registration network, user handover, etc.
- NSACF network element supports monitoring and controlling the number of registered users of each network slice. Support monitoring and controlling the number of PDU sessions established by each network slice. Supports event-based network slice status notification and reporting to other NFs.
- UDM network element used to generate authentication credentials, user identification processing (such as storing and managing user permanent identities, etc.), access authorization control and subscription data management, etc.
- UDR includes UDM subscription data, PCF policy data, NEF open structured data and application data (including packet flow description (PFD) for application detection, AF request information of multiple UEs, etc.).
- UDR can be deployed in each PLMN, and its functions are as follows:
- the UDR accessed by the NEF belongs to the same PLMN where the NEF resides.
- the UDR accessed by the UDM belongs to the same PLMN where the UDM resides.
- the UDR accessed by the PCF belongs to the same PLMN where the PCF resides.
- 3DN refers to the service network that provides data transmission services for users, such as IMS (IP multi-media service, IP multimedia service), Internet, etc.
- IMS IP multi-media service, IP multimedia service
- the UE accesses the DN through the packet data unit (PDU) session established between the UE and the DN.
- PDU packet data unit
- the following embodiments relate to application function network elements, policy control function network elements, session management function network elements, access and mobility management function network elements, network slice admission control function network elements, unified data repository or unified data management function network Yuan.
- the application function network element is referred to as the AF network element
- the policy control function network element is referred to as the PCF network element
- the session management function network element is referred to as the SMF network element
- the access and mobility management function network element is referred to as the AMF network element
- the network element is an NSACF network element
- the unified data repository is a UDR
- the unified data management function network element is a UDM as an example.
- the application function network element, the policy control function network element, the session management function network element, the access and mobility management function network element, the network slice admission control function network element, the unified data repository or the unified data management function network element can also be other A network device with application functions, policy control functions, session management functions, access and mobility management functions, network slice admission control functions, data storage functions, and data management functions is not limited in this embodiment of the application.
- the session management function network element can be SMF+PGW-C (session management function+packet data network gateway for control plane) network
- the access and mobility management functional network element may be a mobility management entity (mobility management entity, MME) or an AMF network element.
- FIG. 7 is a schematic flowchart of a network slice access control method provided by an embodiment of the present application. As shown in FIG. 7 , the network slice access control method includes the following parts 701-703. in:
- the AF network element sends first information to the PCF network element.
- the PCF network element may receive the first information.
- the first information is used to indicate that the first PDU session in the first network slice is associated with priority services.
- the first PDU session is associated with the priority service: the first PDU session is delivering the priority service, or the first PDU session is not currently delivering the priority service, but will deliver the priority service in the future (that is, the first PDU session may deliver the priority service level business).
- the AF network element can identify whether the first PDU session is associated with a priority service, so the AF network element can send the first information to the PCF network element.
- the AF network element may send the first information to the PCF network element after the first PDU session is established.
- the first information may be an emergency indicator (emergency indicator), or (MPS 5GS) priority indicator (priority indicator), etc.
- the PCF network element sends the second information to the SMF network element based on the first information.
- the SMF network element may receive the second information.
- the second information is used for the SMF network element to prevent the first PDU session or the first network slice in the first network slice from being controlled by network slice access.
- the second information is used to indicate that the first PDU session is associated with a priority service. That is, the PCF network element may explicitly indicate to the SMF network element the priority service associated with the first PDU session.
- the second information is the allocation and preemption priority (allocation and retention priority, ARP) corresponding to the first PDU session, and the value of the second information is the first value. That is, the PCF network element may implicitly indicate the priority service associated with the first PDU session to the SMF network element through the ARP.
- ARP allocation and retention priority
- the ARP can be carried in the policy information and sent to the SMF network element.
- the policy information may be a PCC rule corresponding to the first PDU session.
- the policy information may be PDU session policy information corresponding to the first PDU session.
- the ARP may be the ARP in the PCC rule corresponding to a certain service in the first PDU session, or may be the authorized default ARP of the first PDU session.
- ARP contains information about priority, preemptability, and preemptability. This allows to decide whether QoS flow establishment/modification/switching is acceptable or needs to be rejected in case of resource constraints (typically used for admission control of GBR traffic). It can also be used to decide which existing QoS flow to preempt during resource constraints, i.e. which QoS flow to release to free up resources.
- the second information may also be some other information used by the SMF network element to prevent the first PDU session or the first network slice in the first network slice from the access control of the network slice.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- the SMF network element may only make the first PDU session not subject to network slice access control based on the second information. Alternatively, the entire network slice where the first PDU session is located is not subject to access control.
- the SMF network element executes the NSAC process after obtaining the policy information from the PCF network element (instead of the first step in the PDU session establishment, that is, not after the SMF network element receives the PDU session establishment request from the terminal device execute the NSAC process).
- the SMF network element prevents the first PDU session or the first network slice in the first network slice from the network slice access control (that is, the SMF network element skips the corresponding NSAC process) It is: the SMF network element instructs the NSACF network element to reduce the number of PDU sessions of the first network slice by one; and/or, the SMF network element instructs the NSACF network element to make the first network slice not subject to network slice access control.
- the specific implementation manner in which the SMF network element prevents the first PDU session from access control of the network slice may be: the SMF network element instructs the NSACF network element to reduce the number of PDU sessions in the first network slice by one. That is, the NSACF network element does not count the first PDU session into the number of PDU sessions of the first network slice.
- the specific implementation manner in which the SMF network element prevents the first network slice from the network slice access control is as follows: the SMF network element instructs the NSACF network element to prevent the first network slice from the network slice access control. That is, the NSACF network element does not count the number of PDU sessions of the first network slice.
- the NSACF network element may further notify other SMF network elements that the PDU session of the first network slice is not subject to network slice access control.
- the SMF network element does not need to report the change in the number of PDU sessions of the first network slice to the NSACF network element.
- the other SMF network elements here may be SMF network elements within the service range of all NSACF network elements; they may also be all SMF network elements serving the terminal equipment corresponding to the first PDU session.
- the service terminal device specifically refers to the PDU session corresponding to the service terminal device. The latter requires the SMF network element to report the UE ID at the same time when reporting the change in the number of PDU sessions to the NSACF network element, so that the NSACF network element knows which SMF network elements serve the sessions of a certain terminal device.
- the SMF network element may also send third information to the AMF network element based on the second information, where the third information is used to indicate that the first PDU session is associated with a priority service.
- the terminal device corresponding to the first PDU session can be exempted from the access control of the first network slice in a timely manner, or the first network slice can be exempted from the access control.
- the SMF network element can timely prevent the first PDU session or the first network slice in the first network slice from being accessed by the network slice control, thereby avoiding interruption or inability to initiate priority services.
- FIG. 8 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 8 , the network slice access control method includes the following parts 801-806. in:
- the AF network element sends first information to the PCF network element.
- the PCF network element may receive the first information.
- the PCF network element sends the second information to the SMF network element based on the first information.
- the SMF network element may receive the second information.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- steps 801 to 803 For related descriptions of steps 801 to 803, reference may be made to the descriptions of steps 701 to 703 in FIG. 7 , and details are not repeated here.
- the AF network element sends fourth information to the PCF network element.
- the PCF network element may receive the fourth information.
- the fourth information is used to indicate that the first PDU session is not associated with priority services.
- the PCF network element sends fifth information to the SMF network element based on the fourth information.
- the SMF network element may receive the fifth information.
- the fifth information is used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the fifth information is used to indicate that the first PDU session is not associated with priority services. That is, the PCF network element may explicitly indicate to the SMF network element that the first PDU session is not associated with priority services.
- the fifth information is the ARP corresponding to the first PDU session, and the value of the fifth information is the second value. That is, the PCF network element may implicitly indicate to the SMF network element through the ARP that the first PDU session is not associated with priority services.
- the second value is different from the above first value. The second value can be a larger value.
- the ARP can be carried in the policy information and sent to the SMF network element.
- the policy information may be a PCC rule corresponding to the first PDU session.
- the policy information may be PDU session policy information corresponding to the first PDU session.
- the ARP may be the ARP in the PCC rule corresponding to a certain service in the first PDU session, or may be the authorized default ARP of the first PDU session.
- the fifth information may also be some other information used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the SMF network element makes the first PDU session or the first network slice subject to network slice access control based on the fifth information.
- the SMF network element may only make the first PDU session subject to network slice access control based on the fifth information.
- the entire network slice where the first PDU session is located is subject to access control.
- the SMF network element can make only the first PDU session not subject to network slice access control based on the second information, then the SMF network element can make only the first PDU session subject to network slice access control based on the fifth information. If the SMF network element can make the entire network slice where the first PDU session resides not subject to access control based on the second information, then the SMF network element can make the entire network slice where the first PDU session resides subject to access control based on the fifth information.
- the SMF network element makes the first PDU session or the first network slice subject to network slice access control (that is, the SMF network element executes the corresponding NSAC process).
- the element indicates to add one to the number of PDU sessions of the first network slice; and/or, the SMF network element indicates to the NSACF network element that the first network slice is subject to network slice access control.
- the specific implementation manner in which the SMF network element makes the first PDU session subject to network slice access control may be: the SMF network element instructs the NSACF network element to add one to the number of PDU sessions in the first network slice. That is, the NSACF network element counts the first PDU session into the number of PDU sessions in the first network slice.
- the specific implementation manner in which the SMF network element makes the first network slice subject to network slice access control is: the SMF network element instructs the NSACF network element to make the first network slice subject to network slice access control. That is, the NSACF network element will count the number of PDU sessions of the first network slice.
- the NSACF network element may further notify other SMF network elements that the PDU session of the first network slice is subject to network slice access control.
- the SMF network element may report the change in the number of PDU sessions of the first network slice to the NSACF network element.
- the other SMF network elements here may be SMF network elements within the service range of all NSACF network elements; they may also be all SMF network elements serving the terminal equipment corresponding to the first PDU session.
- the SMF network element sends sixth information to the AMF network element based on the fifth information, where the sixth information is used to indicate that the first PDU session is not associated with a priority service.
- the terminal device corresponding to the first PDU session can be subject to access control of the first network slice in a timely manner based on the sixth information, or the first network slice can be subject to access control.
- the AMF network element can also be other network devices with access and mobility management functions.
- the SMF network element can make the first PDU session or the first network slice subject to network slice access control in a timely manner when the first PDU session is not associated with priority services.
- FIG. 9 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 9 , the network slice access control method includes the following parts 901-903. in:
- the UDR/UDM network element sends first information to the PCF network element.
- the PCF network element may receive the first information.
- the first information may be subscription information or application information in a UDR/UDM network element.
- the application information may be written into the UDR/UDM network element in advance by the AF network element through the network exposure function (network exposure function, NEF) network element.
- NEF network exposure function
- the first information is used to indicate that the first network slice is associated with priority services.
- the first network slice associated with priority services means: the first network slice is delivering priority services, or the first network slice is currently not delivering priority services, but will deliver priority services in the future (that is, the first network slice A network slice may deliver priority traffic), or, the first network slice may use the subscribed priority traffic.
- the first information used to indicate the first network slice-associated priority service may specifically be: the first information is used to indicate the first DNN-associated priority service in the first network slice.
- the first network slice is the network slice where the first PDU session is located.
- the first DNN is a data network name (data network name, DNN) where the first PDU session is located.
- the first DNN associated with priority services means: the first DNN is delivering priority services, or the first DNN is not currently delivering priority services, but will deliver priority services in the future (that is, the first DNN may The priority service will be delivered), or the signed priority service can be used in the first DNN.
- the first information may also indicate that the terminal device/User is associated with a priority service.
- the associated priority service of the terminal device may refer to: the terminal device is delivering the priority service, or the terminal device is not currently delivering the priority service, but will deliver the priority service in the future (that is, the terminal device may deliver the priority service class service), or the terminal device can use the contracted priority service (Indicates the user is subscribed to MPS). That is, the terminal device/User is the terminal device/User corresponding to the first PDU session.
- the subscription information includes MPS priority.
- the UDR/UDM network element may send the first information to the PCF network element during the establishment of the first PDU session. For example, during the establishment process of the first PDU session, the PCF network element will request the UDM network element to obtain the subscription information of the terminal device corresponding to the first PDU session in the first network slice or the first DNN.
- the UDM network element/UDR may also send the first information to the PCF network element after the first PDU session is established. For example, when the UDM network element/UDR detects that the subscription information or the application information is updated, the UDM network element/UDR may send the first information to the PCF network element.
- the PCF network element sends the second information to the SMF network element based on the first information.
- the SMF network element may receive the second information.
- the second information is used for the SMF network element to prevent the first PDU session or the first network slice in the first network slice from being controlled by network slice access.
- the second information is used to indicate the first network slice where the first PDU session is located or the terminal device corresponding to the first PDU session to associate priority services. That is, the PCF network element may explicitly indicate to the SMF network element the first network slice where the first PDU session is located or the terminal device association priority service corresponding to the first PDU session.
- the second information is the ARP corresponding to the first PDU session, and the value of the second information is the first value. That is, the PCF network element may implicitly indicate to the SMF network element the priority service associated with the first network slice through the ARP.
- the ARP can be carried in the policy information and sent to the SMF network element.
- the policy information may be a PCC rule corresponding to the first PDU session.
- the policy information may be PDU session policy information corresponding to the first PDU session.
- the ARP may be the ARP in the PCC rule corresponding to a certain service in the first PDU session, or may be the authorized default ARP of the first PDU session.
- the value of the ARP may be set to a smaller value to indicate to the SMF network element the first network slice associated priority service.
- the value of ARP can be set to 0 or 1.
- the second information may also be some other information used by the SMF network element to prevent the first PDU session or the first network slice in the first network slice from the access control of the network slice.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- the SMF network element may only make the first PDU session not subject to network slice access control based on the second information. Alternatively, the entire network slice where the first PDU session is located is not subject to access control.
- the SMF network element executes the NSAC process after obtaining the policy information from the PCF network element (instead of the first step in the PDU session establishment, that is, not after the SMF network element receives the PDU session establishment request from the terminal device execute the NSAC process).
- the SMF network element prevents the first PDU session or the first network slice in the first network slice from the network slice access control (that is, the SMF network element skips the corresponding NSAC process) It is: when the number of PDU sessions of the first network slice reaches the threshold of the number of PDU sessions corresponding to the first network slice, the SMF network element does not refuse to establish the first PDU session; and/or, the SMF network element does not indicate to the NSACF network element that the second The number of PDU sessions of a network slice is increased by one; and/or, the SMF network element indicates to the NSACF network element that the first network slice is not subject to network slice access control.
- the specific implementation manner in which the SMF network element prevents the first PDU session from the access control of the network slice may be: when the number of PDU sessions in the first network slice reaches the Refuse to establish the first PDU session; and/or, the SMF network element does not indicate to the NSACF network element to add one to the number of PDU sessions in the first network slice, that is, the NSACF network element does not count the first PDU session into the PDU of the first network slice number of sessions.
- the specific implementation manner in which the SMF network element prevents the first network slice from the network slice access control is as follows: the SMF network element instructs the NSACF network element to prevent the first network slice from the network slice access control. That is, the NSACF network element does not count the number of PDU sessions of the first network slice.
- the NSACF network element may further notify other SMF network elements that the PDU session of the first network slice is not subject to network slice access control.
- the SMF network element does not need to report the change in the number of PDU sessions of the first network slice to the NSACF network element.
- the other SMF network elements here may be all SMF network elements within the service range of the NSACF network element; they may also be all SMF network elements serving the UE corresponding to the first PDU session.
- the SMF network element may also send third information to the AMF network element based on the second information, where the third information is used to indicate that the first network slice is associated with a priority service.
- the terminal device corresponding to the first PDU session can be exempted from the access control of the first network slice in a timely manner, or the first network slice can be exempted from the access control.
- the AMF network element can also be other network devices with access and mobility management functions.
- the SMF network element can timely make the first PDU session or the first PDU session in the first network slice A network slice is not subject to network slice access control, thereby avoiding the interruption or inability to initiate priority services.
- FIG. 10 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 10 , the network slice access control method includes the following parts 1001-1006. in:
- the UDR/UDM network element sends first information to the PCF network element.
- the PCF network element may receive the first information.
- the PCF network element sends the second information to the SMF network element based on the first information.
- the SMF network element may receive the second information.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- the UDR/UDM network element sends fourth information to the PCF network element.
- the PCF network element may receive the fourth information.
- the fourth information is used to indicate that the first network slice is not associated with priority services.
- the PCF network element sends fifth information to the SMF network element based on the fourth information.
- the SMF network element may receive the fifth information.
- the fifth information is used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the fifth information is used to indicate that the first network slice where the first PDU session is located or the terminal device corresponding to the first PDU session is not associated with the priority service. That is, the PCF network element may explicitly indicate to the SMF network element that the first network slice where the first PDU session is located or the terminal device corresponding to the first PDU session is not associated with priority services.
- the fifth information is the ARP corresponding to the first PDU session, and the value of the fifth information is the second value. That is, the PCF network element may implicitly indicate to the SMF network element through the ARP that the first network slice where the first PDU session is located or the terminal device corresponding to the first PDU session is not associated with priority services.
- the second value is different from the above first value. The second value can be a larger value.
- the ARP can be carried in the policy information and sent to the SMF network element.
- the policy information may be a PCC rule corresponding to the first PDU session.
- the policy information may be PDU session policy information corresponding to the first PDU session.
- the ARP may be the ARP in the PCC rule corresponding to a certain service in the first PDU session, or may be the authorized default ARP of the first PDU session.
- the fifth information may also be some other information used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the SMF network element makes the first PDU session or the first network slice subject to network slice access control based on the fifth information.
- step 1006 For a specific implementation manner of step 1006, reference may be made to the specific implementation manner of step 806 in the embodiment corresponding to FIG. 8 , which will not be repeated here.
- the SMF network element sends sixth information to the AMF network element based on the fifth information, where the sixth information is used to indicate that the first network slice is not associated with the priority service.
- the terminal device corresponding to the first PDU session can be subject to access control of the first network slice in a timely manner based on the sixth information, or the first network slice can be subject to access control.
- the AMF network element can also be other network devices with access and mobility management functions.
- the SMF network element can timely enable the first PDU session or the first network slice to be accepted by the network slice when the terminal device corresponding to the first network slice or the first PDU session is not associated with priority services. into control.
- FIG. 11 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 11 , the network slice access control method includes the following parts 1101-1102. in:
- the UDR/UDM network element sends second information to the SMF network element.
- the SMF network element may receive the second information.
- the second information is used for the SMF network element to prevent the first PDU session or the first network slice in the first network slice from being controlled by network slice access.
- the second information may be subscription information or application information in the UDR/UDM network element.
- the application information may be written into the UDR/UDM network element in advance by the AF network element through the network exposure function (network exposure function, NEF) network element.
- NEF network exposure function
- the second information is used to indicate that the first network slice is associated with priority services. That is, the UDR/UDM network element can explicitly indicate to the SMF network element the priority service associated with the first network slice. For the meaning of the priority service associated with the first network slice, refer to the foregoing description, and details are not repeated here.
- the second information used to indicate the first network slice-associated priority service may specifically be: the second information is used to indicate the first DNN-associated priority service in the first network slice.
- the first network slice is the network slice where the first PDU session is located.
- the first DNN is a data network name (data network name, DNN) where the first PDU session is located.
- the second information may also indicate that the terminal device/User is associated with a priority service.
- the terminal device/User is the terminal device/User corresponding to the first PDU session.
- the subscription information includes MPS priority.
- the meaning of the terminal device/User associated priority service please refer to the previous description, and details will not be repeated here.
- the second information may also be some other information used by the SMF network element to prevent the first PDU session or the first network slice in the first network slice from the access control of the network slice.
- the UDR/UDM network element may send the second information to the SMF network element during the establishment of the first PDU session.
- the SMF network element will request the UDM network element to obtain the subscription information of the UE corresponding to the first PDU session in the first network slice or the first DNN.
- the UDM network element/UDR may send the second information to the SMF network element.
- the UDM network element/UDR may send the second information to the SMF network element.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- the SMF network element executes the NSAC process after obtaining the subscription information from the UDM network element/UDR (instead of the first step in the PDU session establishment, that is, not after the SMF network element receives the PDU session of the terminal device Execute the NSAC process when creating a request).
- step 1102 For a specific implementation manner of step 1102, reference may be made to the specific implementation manner of step 903 in the embodiment corresponding to FIG. 9 , which will not be repeated here.
- the SMF network element may also send third information to the AMF network element based on the second information, where the third information is used to indicate the terminal device association priority corresponding to the first network slice or the first PDU session business.
- the terminal device corresponding to the first PDU session can be exempted from the access control of the first network slice in a timely manner, or the first network slice can be exempted from the access control.
- the AMF network element can also be other network devices with access and mobility management functions.
- the SMF network element can timely make the first PDU session or the first PDU session in the first network slice Network slicing is not subject to network slicing access control, thereby avoiding interruption or inability to initiate priority services.
- FIG. 12 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 12 , the network slice access control method includes the following parts 1201-1204. in:
- the UDR/UDM network element sends second information to the SMF network element.
- the SMF network element may receive the second information.
- the SMF network element makes the first PDU session or the first network slice in the first network slice not subject to network slice access control based on the second information.
- steps 1201 to 1202 refer to the specific implementation manners of steps 1101 to 1102 in the embodiment corresponding to FIG. 11 , which will not be repeated here.
- the UDR/UDM network element sends fifth information to the SMF network element.
- the SMF network element may receive the fifth information.
- the fifth information is used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the fifth information is used to indicate that the terminal device corresponding to the first network slice or the first PDU session is not associated with the priority service. That is, the UDR/UDM network element can explicitly indicate to the SMF network element that the first network slice is not associated with priority services.
- the fifth information may also be some other information used by the SMF network element to make the first PDU session or the first network slice subject to network slice access control.
- the SMF network element makes the first PDU session or the first network slice subject to network slice access control based on the fifth information.
- step 1204 For a specific implementation manner of step 1204, reference may be made to the specific implementation manner of step 803 in the embodiment corresponding to FIG. 8 , which will not be repeated here.
- the SMF network element sends sixth information to the AMF network element based on the fifth information, where the sixth information is used to indicate that the terminal device corresponding to the first network slice or the first PDU session is not associated with priority services .
- the terminal device corresponding to the first PDU session can be subject to the access control of the first network slice in a timely manner based on the sixth information, or the first network slice can be subject to access control.
- the AMF network element can also be other network devices with access and mobility management functions.
- the SMF network element can make the first PDU session or the first network slice accept the network slice in a timely manner when the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services. into control.
- FIG. 13 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application.
- the network slice access control method includes the following parts 1301-1302. in:
- the SMF network element When establishing a first PDU session, the SMF network element prevents the first PDU session from network slice access control.
- the SMF network element If the SMF network element does not receive the second information within a preset time period after establishing the first PDU session, the SMF network element makes the first PDU session subject to network slice access control.
- the second information comes from the PCF network element or the UDM network element or the UDR, and the second information is used by the SMF network element to prevent the first PDU session or the first network slice in the first network slice from being controlled by network slice access.
- the second information indicates the first PDU session in the first network slice or the terminal device associated priority service corresponding to the first network slice or the first PDU session.
- the second information is the ARP corresponding to the first PDU session, and the value of the second information is the first value, that is, the second information implicitly indicates the first PDU session or the first network slice or the terminal device corresponding to the first PDU session Associate priority business.
- the PCF network element reference may be made to the descriptions of the embodiments corresponding to FIG. 7 to FIG. 10 , and details are not repeated here.
- the UDM network element or UDR reference may be made to the descriptions in the embodiments corresponding to FIG. 11 and FIG. 12 , and details are not repeated here.
- the meaning of the first PDU session, the first network slice, or the priority service associated with the terminal device reference may be made to the foregoing description, and details are not repeated here.
- the SMF network element prevents the first PDU session from the network slice access control (that is, the SMF network element skips the corresponding NSAC process).
- the SMF network element does not refuse to establish the first PDU session; and/or, does not instruct the NSACF network element to add one to the number of PDU sessions of the first network slice, that is, the first PDU Sessions are not counted in the number of PDU sessions for the first network slice.
- the specific implementation manner in which the SMF network element makes the first PDU session subject to network slice access control (that is, the SMF network element executes the corresponding NSAC process) is as follows: the SMF network element indicates to the NSACF network element that the first The number of PDU sessions in the network slice is increased by one, that is, the first PDU session is included in the number of PDU sessions in the first network slice.
- the SMF network element if the SMF network element receives the second information within a preset time period after establishing the first PDU session, the SMF network element sends the third information to the AMF network element based on the second information, The third information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is associated with a priority service. In this way, the AMF network element can timely prevent the terminal device from the access control of the first network slice, or prevent the first network slice from the access control.
- the AMF network element For related operations after the AMF network element receives the third information, refer to the description in the embodiment corresponding to FIG. 15 , which will not be repeated here.
- the SMF network element when establishing the first PDU session, the SMF network element makes the first PDU session not subject to network slice access control by default. There is no need to instruct the NSACF network element to increase the number of PDU sessions of the first network slice by one after the first PDU session, and instruct the NSACF network element to decrease the number of PDU sessions of the first network slice by one after receiving the second information . It is beneficial to reduce signaling interaction.
- FIG. 14 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 14 , the network slice access control method includes the following parts 1401-1403. in:
- the SMF network element When establishing a first PDU session, the SMF network element prevents the first PDU session from network slice access control.
- the SMF network element If the SMF network element does not receive the second information within a preset time period after establishing the first PDU session, the SMF network element makes the first PDU session subject to network slice access control.
- steps 1401 to 1402 For related descriptions of steps 1401 to 1402, refer to descriptions of steps 1301 to 1302 in FIG. 13 , and details are not repeated here.
- the SMF network element If the SMF network element receives fifth information after receiving the second information, the SMF network element makes the first PDU session subject to network slice access control based on the fifth information.
- the fifth information comes from the PCF network element or the UDM network element or the UDR, and the fifth information is used by the SMF network element to make the first PDU session subject to network slice access control.
- the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services, or the fifth information is the ARP corresponding to the first PDU session, and the fifth
- the value of the information is the second value, that is, implicitly indicates to the SMF network element through ARP that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services.
- the second value is different from the first value described above.
- the SMF network element may also send sixth information to the AMF network element based on the fifth information, where the sixth information is used to indicate the first PDU session or the first network slice or the first PDU session corresponding Terminal equipment is not associated with priority services.
- the AMF network element can make the terminal device corresponding to the first PDU session subject to the access control of the first network slice in time, or make the first network slice subject to the access control.
- the SMF network element can make the first PDU session subject to network slice access control in a timely manner when the first PDU session is not associated with priority services.
- FIG. 15 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application.
- the network slice access control method includes the following parts 1501-1502. in:
- the SMF network element sends third information to the AMF network element.
- the AMF network element may receive the third information.
- the third information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is associated with a priority service.
- the SMF network element after receiving the second information, the SMF network element sends the third information to the AMF network element based on the second information.
- the SMF network element if the SMF network element receives the second information within the preset time period after the establishment of the first PDU session, the SMF network element based on the second information Send the third information to the AMF network element.
- the AMF network element prevents the terminal device corresponding to the first PDU session from the access control of the first network slice, or prevents the first network slice from the access control.
- the AMF network element may only prevent the terminal device corresponding to the first PDU session from the network slice access control based on the third information.
- the entire network slice where the first PDU session is located is not subject to access control.
- the AMF network element prevents the terminal device corresponding to the first PDU session from the access control of the first network slice, or prevents the first network slice from the access control (that is, the AMF network element skips the corresponding
- the specific implementation of the NSAC process is: the AMF network element indicates to the NSACF network element that the number of terminal devices in the first network slice should be reduced by one; and/or, when the number of terminal devices in the first network slice reaches the number corresponding to the first network slice When the number of terminal devices exceeds the threshold, the AMF network element does not reject the first network slice requested by the terminal device; and/or, the AMF network element does not indicate to the NSACF network element that the number of terminal devices in the first network slice should be increased by one; and/or, The AMF network element indicates to the NSACF network element that the first network slice is not subject to network slice access control.
- the AMF network element indicates to the NSACF network element that the number of terminal devices in the first network slice is reduced by one, That is, the NSACF network element does not count the terminal device corresponding to the first PDU session into the number of terminal devices in the first network slice.
- the PDN connection (corresponding to the PDU session) will be established first, and then the terminal device will register in 5GS (due to moving from EPC
- SMF+PGC has requested the number of terminal equipment from NSACF to be reduced by 1.
- AMF should have applied to NSACF for adding 1 to the number of terminal equipment.
- the AMF network element may skip the NSAC process and not instruct the NSACF network element to add one to the number of terminal devices in the first network slice.
- inter-PLMN handover inter-PLMN Handover
- cross-NSACF movement similar operations can also be performed (for example, after the PDU session is first established, switching to a new PLMN or a new NSACF service area may be performed by the new The NSACF performs admission control, that is, the old AMF has requested the NSACF to reduce the number of terminal devices by one, and at this time, the new AMF should apply to the new NSACF for the number of terminal devices to be increased by 1).
- the AMF network element may skip the NSAC process and not instruct the NSACF network element to increase the number of terminal devices in the first network slice by one. In order to avoid affecting the progress of priority services in the first network slice because the NSAC rejects the first network slice of the terminal device.
- the AMF network element indicates to the NSACF network element that the first network slice is not subject to network slice access control. That is, the NSACF network element does not count the number of terminal devices in the first network slice.
- the NSACF network element may further notify other AMF network elements that the terminal devices of the first network slice are not subject to network slice access control.
- the AMF network element does not need to report the change in the number of terminal devices in the first network slice to the NSACF network element.
- the other AMF network elements here may be all AMF network elements within the service range of the NSACF network element; they may also be all AMF network elements serving the terminal equipment corresponding to the first PDU session.
- the service terminal device specifically refers to the PDU session corresponding to the service terminal device.
- the latter requires the AMF network element to report the terminal device identification when reporting the change in the number of terminal devices to the NSACF network element, so that the NSACF network element knows which AMF network elements serve the session of a certain terminal device.
- the third information may be transmitted with the AMF as the context of the terminal device.
- the AMF network element can promptly prevent the terminal device corresponding to the first PDU session or the first network slice from being connected to the network slice when the first PDU session or the first network slice is associated with priority services. Incoming control, so as to avoid interruption or failure to initiate priority services.
- FIG. 16 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 16 , the network slice access control method includes the following parts 1601-1604. in:
- the SMF network element sends third information to the AMF network element.
- the AMF network element may receive the third information.
- the AMF network element prevents the terminal device corresponding to the first PDU session from the access control of the first network slice, or prevents the first network slice from the access control.
- steps 1601 to 1602 For related descriptions of steps 1601 to 1602, refer to descriptions of steps 1501 to 1502 in FIG. 15 , and details are not repeated here.
- the SMF network element sends sixth information to the AMF network element.
- the sixth information is used to indicate that the terminal device corresponding to the first PDU session or the first network slice or the first PDU session is not associated with the priority service.
- the SMF network element after receiving the fifth information, the SMF network element sends sixth information to the AMF network element based on the fifth information.
- the AMF network element makes the terminal device subject to the access control of the first network slice, or makes the first network slice subject to the access control.
- the AMF network element makes the terminal device subject to the access control of the first network slice, or makes the first network slice subject to the access control (that is, the AMF network element does not skip the corresponding NSAC process).
- the method is: the AMF network element indicates to the NSACF network element that the number of terminal devices in the first network slice is increased by one; and/or; the AMF network element indicates to the NSACF network element that the first network slice is subject to network slice access control.
- the specific implementation manner in which the AMF network element makes the terminal device subject to the access control of the first network slice is: the AMF network element instructs the NSACF network element to add one to the number of terminal devices in the first network slice.
- a specific implementation manner in which the AMF network element makes the first network slice subject to access control is: the AMF network element indicates to the NSACF network element that the first network slice is subject to network slice access control.
- the NSACF network element may further notify other AMF network elements that the terminal devices of the first network slice are subject to network slice access control.
- the AMF network element may report the change in the number of terminal devices in the first network slice to the NSACF network element.
- the other AMF network elements here may be all AMF network elements within the service range of the NSACF network element; they may also be all AMF network elements serving the terminal equipment corresponding to the first PDU session.
- the third information and the sixth information may be transmitted with the AMF as the context of the terminal device.
- the AMF network element can timely enable the terminal device or the first network slice corresponding to the first PDU session to be accepted by the network slice when the first PDU session or the first network slice is not associated with priority services. into control.
- FIG. 17 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 17 , the network slice access control method includes the following parts 1701-1702. in:
- the UDR/UDM network element sends third information to the AMF network element.
- the AMF network element may receive the third information.
- the third information is used to indicate that the first network slice or the terminal device is associated with priority services.
- the terminal device is a terminal device that requests to register the first network slice.
- the UDR/UDM network element may send the third information to the AMF network element during the process of the terminal device registering the first network slice.
- the AMF network element Based on the third information, the AMF network element exempts the terminal device from the access control of the first network slice, or exempts the first network slice from the access control.
- the AMF network element prevents the terminal device from the access control of the first network slice, or prevents the first network slice from the access control (that is, the AMF network element skips the corresponding NSAC process).
- the implementation method is:
- the AMF network element When the number of terminal devices in the first network slice reaches the threshold of the number of terminal devices corresponding to the first network slice, the AMF network element does not reject the first network slice requested by the terminal device; and/or, the AMF network element does not indicate to the NSACF network element Adding one to the number of terminal devices in the first network slice; and/or, the AMF network element indicates to the NSACF network element that the first network slice is not subject to network slice access control.
- the specific implementation method for the AMF network element to prevent the terminal device from the access control of the first network slice is: when the number of terminal devices in the first network slice reaches the threshold of the number of terminal devices corresponding to the first network slice, the AMF network element does not Rejecting the first network slice requested by the terminal device; and/or, the AMF network element does not instruct the NSACF network element to add one to the number of terminal devices in the first network slice.
- the specific implementation manner in which the AMF network element makes the first network slice not subject to access control is as follows: the AMF network element indicates to the NSACF network element that the first network slice is not subject to network slice access control.
- the NSACF network element may further notify other AMF network elements that the terminal devices of the first network slice are not subject to network slice access control.
- the AMF network element does not need to report the change in the number of terminal devices in the first network slice to the NSACF network element.
- the other AMF network elements here may be all AMF network elements within the service range of the NSACF network element; they may also be all AMF network elements serving the UE corresponding to the first PDU session.
- the AMF network element may notify the SMF network element that the priority service is associated with the first network slice or the terminal device may use the priority service.
- the SMF network element can make the PDU session of the terminal device in the first network slice or the first network slice not subject to network slice access control.
- the third information may be transmitted with the AMF as the context of the terminal device.
- the AMF network element can promptly make the terminal device or the first network slice requesting the first network slice not subject to network slice access control when the first network slice or the terminal device is associated with priority services .
- FIG. 18 is a schematic flowchart of another network slice access control method provided by an embodiment of the present application. As shown in FIG. 18 , the network slice access control method includes the following parts 1801-1804. in:
- the UDR/UDM network element sends third information to the AMF network element.
- the AMF network element may receive the third information.
- the AMF network element Based on the third information, the AMF network element exempts the terminal device from the access control of the first network slice, or exempts the first network slice from the access control.
- steps 1801 to 1802 refer to the specific implementation manners of steps 1701 to 1702 in the embodiment corresponding to FIG. 17 , and details are not repeated here.
- the UDR/UDM network element sends sixth information to the AMF network element.
- the AMF network element may receive the sixth information.
- the sixth information is used to indicate that the first network slice or the terminal device is not associated with the priority service.
- the terminal device is a terminal device that requests to register the first network slice.
- the AMF network element makes the terminal device subject to the access control of the first network slice, or makes the first network slice subject to the access control.
- step 1804 For the specific implementation manner of step 1804, reference may be made to the specific implementation manner of step 1604, which will not be repeated here.
- the AMF network element may notify the SMF network element that the first network slice is not associated with the priority service or the terminal device cannot use the priority service.
- the SMF network element can make the PDU session of the terminal device in the first network slice or the first network slice subject to network slice access control.
- the third information and the sixth information may be transmitted with the AMF as the context of the terminal device.
- the AMF network element can promptly make the terminal device or the first network slice requesting the first network slice subject to network slice access control when the first network slice or the terminal device is not associated with priority services .
- the communication device includes hardware structures and/or software modules corresponding to each function.
- the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
- FIG. 19 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
- the communication device shown in FIG. 19 may be used to execute part or all of the functions of the session management function network element (such as the SMF network element) in the method embodiments described above in FIGS. 7 to 12 .
- the device may be a network element with a session management function, or a device in a network element with a session management function, or a device that can be matched and used with a network element with a session management function.
- the communication device may also be a system on a chip.
- the communication device shown in FIG. 19 may include a communication unit 1901 and a processing unit 1902 . Wherein, the processing unit 1902 is configured to perform data processing.
- the communication unit 1901 is integrated with a receiving unit and a sending unit.
- the communication unit 1901 may also be called a transceiver unit.
- the communication unit 1901 may also be split into a receiving unit and a sending unit.
- the processing unit 1902 and the communication unit 1901 below are the same, and will not be described in detail below. in:
- the communication unit 1901 is configured to receive second information from the policy control function network element or the unified data repository or the unified data management function network element; the processing unit 1902 is further configured to make the first network slice in the first network slice based on the second information
- the packet data unit PDU session or the first network slice is not subject to network slice access control.
- the second information is used to indicate the first PDU session or the first network slice or the associated priority service of the terminal device corresponding to the first PDU session, or the second information is the allocation corresponding to the first PDU session and
- the value of the second information is the first value.
- the ARP may be carried in the policy information and sent to the network element with the session management function.
- the policy information may be a PCC rule corresponding to the first PDU session.
- the policy information may be PDU session policy information corresponding to the first PDU session.
- the ARP may be the ARP in the PCC rule corresponding to a certain service in the first PDU session, or may be the authorized default ARP of the first PDU session.
- the communication unit 1901 is further configured to send third information to the access and mobility management function network element based on the second information, where the third information is used to indicate the first PDU session or the first network slice Or the terminal device corresponding to the first PDU session is associated with the priority service.
- the manner in which the processing unit 1902 prevents the first PDU session in the first network slice or the first network slice from the access control of the network slice is specifically: when the number of PDU sessions in the first network slice reaches the When the number of PDU sessions corresponding to a network slice is at a threshold, the establishment of the first PDU session is not rejected; and/or,
- the communication unit 1901 is further configured to receive fifth information from a network element with a policy control function or a unified data repository or a network element with a unified data management function, where the fifth information is used to indicate the first PDU session or The terminal device corresponding to the first network slice or the first PDU session is not associated with priority services, or the fifth information is the allocation and preemption priority ARP corresponding to the first PDU session, and the value of the fifth information is the second value;
- the processing unit 1902 is further configured to make the first PDU session or the first network slice subject to network slice access control based on the fifth information.
- the manner in which the processing unit 1902 makes the first PDU session or the first network slice subject to the access control of the network slice is: instructing the network element with the network slice admission control function to make the PDU session of the first network slice The number is increased by one; and/or, indicating to the network element with the network slice admission control function that the first network slice is subject to network slice access control.
- the communication unit 1901 is further configured to send sixth information to the access and mobility management function network element based on the fifth information, where the sixth information is used to indicate the first PDU session or the first network slice Or the terminal device corresponding to the first PDU session is not associated with the priority service.
- FIG. 19 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
- the communication device shown in FIG. 19 may be used to execute part or all of the functions of the session management function network element (such as the SMF network element) in the method embodiments described above in FIGS. 13 to 14 .
- the device may be a network element with a session management function, or a device in a network element with a session management function, or a device that can be matched and used with a network element with a session management function.
- the communication device may also be a system on a chip.
- the communication device shown in FIG. 19 may include a communication unit 1901 and a processing unit 1902 . in:
- the processing unit 1902 is configured to, when establishing the first PDU session, make the first PDU session not subject to network slice access control;
- the processing unit 1902 is further configured to make the first PDU session subject to network slice access control if the second information is not received within a preset period of time after the first PDU session is established; wherein the second information comes from a policy
- the control function network element or the unified data storage library or the unified data management function network element indicates the first PDU session in the first network slice or the terminal device association priority corresponding to the first network slice or the first PDU session
- the second information is the allocation and preemption priority ARP corresponding to the first PDU session
- the value of the second information is the first value.
- the communication unit 1901 is configured to, if the second information is received within a preset time period after the establishment of the first PDU session, send a message to the access and mobility management functional network based on the second information Sending third information, where the third information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is associated with a priority service.
- the manner in which the processing unit 1902 prevents the first PDU session from access control of the network slice is specifically: when the number of PDU sessions of the first network slice reaches the threshold of the number of PDU sessions corresponding to the first network slice, Not refusing to establish the first PDU session; and/or not instructing the network element with the network slice admission control function to add one to the number of PDU sessions in the first network slice.
- the manner in which the processing unit 1902 makes the first PDU session subject to the access control of the network slice is: instructing the network element with the network slice admission control function to increase the number of PDU sessions of the first network slice by one.
- the processing unit 1902 is further configured to, if fifth information is received after receiving the second information, make the first PDU session subject to network slice access control based on the fifth information; the fifth information From the policy control function network element or the unified data storage library or the unified data management function network element, the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services , or, the fifth information is the allocation and preemption priority ARP corresponding to the first PDU session, and the value of the fifth information is the second value.
- the communication unit 1901 is further configured to send sixth information to the access and mobility management functional network element based on the fifth information, where the sixth information is used to indicate the first PDU session or the first network slice Or the terminal device corresponding to the first PDU session is not associated with the priority service.
- FIG. 19 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
- the communication device shown in FIG. 19 may be used to execute part or all of the functions of the access and mobility management function network element (such as the AMF network element) in the method embodiments described above in FIGS. 15 to 18 .
- the device may be an access and mobility management function network element, or a device in the access and mobility management function network element, or a device that can be matched and used with the access and mobility management function network element.
- the communication device may also be a system on a chip.
- the communication device shown in FIG. 19 may include a communication unit 1901 and a processing unit 1902 . in:
- the communication unit 1901 is configured to receive third information from a network element with a session management function or a unified data repository or a network element with a unified data management function, where the third information is used to indicate the first PDU session in the first network slice or the first network slice Or the terminal device is associated with the priority service, and the terminal device is a terminal device corresponding to the first PDU session, or the terminal device is a terminal device that requests to register the first network slice; the processing unit 1902 is configured to, based on the third information, The terminal device is not subject to access control of the first network slice, or the first network slice is not subject to access control.
- the processing unit 1902 prevents the terminal device from the access control of the first network slice, or the manner in which the first network slice is not subject to the access control is specifically:
- the first network slice requested by the terminal device is not rejected; and/or,
- the communication unit 1901 is further configured to receive sixth information from a network element with a session management function or a unified data repository or a network element with a unified data management function, where the sixth information is used to indicate the first PDU session or the first PDU session A network slice or a terminal device is not associated with priority services; the processing unit 1902 is further configured to, based on the sixth information, make the terminal device subject to the access control of the first network slice, or make the first network slice subject to the access control.
- the processing unit 1902 makes the terminal device subject to the access control of the first network slice, or the manner of making the first network slice subject to the access control is: instructing the network element with the network slice admission control function to The number of terminal devices in the first network slice is increased by one; and/or; indicating to the network element with the network slice admission control function that the first network slice is subject to network slice access control.
- the communication unit 1901 may notify the session management function network element that the priority service is associated with the first network slice or that the terminal device can use the priority service. In this way, the network element with the session management function can make the PDU session of the terminal device in the first network slice or the first network slice not subject to network slice access control.
- the communication unit 1901 may notify the session management function network element that the first network slice is not associated with the priority service or that the terminal device cannot use the priority service. In this way, the network element with the session management function can make the PDU session of the terminal device in the first network slice or the first network slice subject to network slice access control.
- the third information and the sixth information may be transmitted with the access and mobility management function network element as the context of the terminal device.
- FIG. 19 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
- the communication device shown in FIG. 19 may be used to execute part or all of the functions of the policy control function network element (such as the PCF network element) in the method embodiments described above in FIGS. 15 to 18 .
- the device may be a network element with a policy control function, or a device in a network element with a policy control function, or a device that can be matched and used with a network element with a policy control function.
- the communication device may also be a system on a chip.
- the communication device shown in FIG. 19 may include a communication unit 1901 and a processing unit 1902 . in:
- the communication unit 1901 is configured to receive the first information from the application function network element or the unified data repository or the unified data management function network element; the communication unit 1901 is further configured to send the second information to the session management function network element based on the first information; Wherein, the first information is used to indicate the first packet data unit PDU session in the first network slice or the first network slice or the terminal device associated priority service corresponding to the first PDU session; the second information is used for the session management function network element The first packet data unit PDU session or the first network slice in the first network slice is not subject to network slice access control.
- the second information is used to indicate the first PDU session or the first network slice or the terminal device associated priority service corresponding to the first PDU session, or the second information is the allocation corresponding to the first PDU session With the preemption priority ARP, the value of the second information is the first value.
- the communication unit 1901 is further configured to receive fourth information from an application function network element or a unified data repository or a unified data management function network element; the communication unit 1901 is further configured to send a session The management function network element sends fifth information; wherein, the fourth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services; the fifth information is used by the session management function network The element makes the first packet data unit PDU session in the first network slice or the first network slice subject to network slice access control.
- the fifth information is used to indicate that the first PDU session or the first network slice or the terminal device corresponding to the first PDU session is not associated with priority services, or the fifth information is the In allocating and preempting priority ARP, the value of the fifth information is the second value.
- FIG. 20 shows a schematic structural diagram of a communication device.
- the communication device 2000 may be the network element with the policy control function, the network element with the session management function, or the network element with the access and mobility management function in the foregoing method embodiments. It may also be a chip, a chip system, or a processor that supports the policy control function network element, the session management function network element or the access and mobility management function network element to implement the above method.
- the communication device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
- the communication device 2000 may include one or more processors 2001 .
- the processor 2001 may be a general purpose processor or a special purpose processor or the like.
- it can be a baseband processor or a central processing unit.
- the baseband processor can be used to process communication protocols and communication data
- the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process Data for Software Programs.
- the communication device 2000 may include one or more memories 2002, on which instructions 2004 may be stored, and the instructions may be executed on the processor 2001, so that the communication device 2000 executes the above method Methods described in the Examples.
- data may also be stored in the memory 2002 .
- the processor 2001 and the memory 2002 can be set separately or integrated together.
- the communication device 2000 may further include a transceiver 2005 and an antenna 2006 .
- the transceiver 2005 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to realize a transceiver function.
- the transceiver 2005 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
- the processor 2001 is configured to execute the data processing operation of the network element with the policy control function, the network element with the session management function, or the network element with the access and mobility management function in the foregoing method embodiments.
- the transceiver 2005 is used to execute the data transceiving operation of the network element with the policy control function, the network element with the session management function or the network element with the access and mobility management function in the above method embodiments.
- the processor 2001 may include a transceiver for implementing receiving and sending functions.
- the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
- the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
- the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transmission.
- the processor 2001 may store instructions 2003, and the instructions 2003 run on the processor 2001, and may cause the communication device 2000 to execute the methods described in the foregoing method embodiments.
- the instruction 2003 may be fixed in the processor 2001, in this case, the processor 2001 may be implemented by hardware.
- the communication device 2000 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
- the processor and the transceiver described in the embodiment of the present application can be implemented in integrated circuit (integrated circuit, IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (application specific integrated circuit, ASIC), printed circuit board (printed circuit board, PCB), electronic equipment, etc.
- the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
- CMOS complementary metal oxide semiconductor
- NMOS nMetal-oxide-semiconductor
- PMOS P-type Metal oxide semiconductor
- BJT bipolar junction transistor
- BiCMOS bipolar CMOS
- SiGe silicon germanium
- GaAs gallium arsenide
- the communication device described in the above embodiments may be a network element with a policy control function, a network element with a session management function, or a network element with an access and mobility management function, but the scope of the communication device described in the embodiments of this application is not limited thereto, and the communication The structure of the device may not be limited by FIG. 20 .
- a communication device may be a stand-alone device or may be part of a larger device.
- the communication device may be:
- a set of one or more ICs may also include storage components for storing data and instructions;
- ASIC such as modem (MSM)
- the communication device may be a chip or a chip system
- the chip 2100 shown in FIG. 21 includes a processor 2101 and an interface 2102 .
- a memory 2103 may also be included.
- the number of processors 2101 may be one or more, and the number of interfaces 2102 may be more than one.
- the chip for the case where the chip is used to implement the functions of the network element with the policy control function, the network element with the session management function, or the network element with the access and mobility management function in the embodiment of the present application:
- the interface 2102 is used to receive or output signals
- the processor 2101 is configured to perform data processing operations of the policy control function network element, the session management function network element or the access and mobility management function network element in the above method embodiments.
- the processor in this embodiment of the present application may be an integrated circuit chip that has a signal processing capability.
- each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
- the above-mentioned processor can be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other possible Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
- the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
- the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- Volatile memory can be random access memory (RAM), which acts as external cache memory.
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- SDRAM double data rate synchronous dynamic random access memory
- ESDRAM enhanced synchronous dynamic random access memory
- SLDRAM direct memory bus random access memory
- direct rambus RAM direct rambus RAM
- the present application also provides a communication system, including a session management function network element and a policy control function network element; the session management function network element and the policy control function network element are used to execute the methods described in the embodiments corresponding to Figures 7 to 10 .
- the present application also provides a communication system, including a unified data repository or a network element with a unified data management function, and a network element with a session management function; a unified data repository or a network element with a unified data management function, and a network element with a session management function for Execute the methods described in the embodiments corresponding to FIG. 11 to FIG. 12 .
- the present application also provides a communication system, including a policy control function network element and an access and mobility management function network element; the policy control function network element and the access and mobility management function network element are used to perform The method described in the examples.
- the application also provides a communication system, including a unified data storage library or a unified data management function network element, and an access and mobility management function network element; a unified data storage library or a unified data management function network element, and an access and mobility management function network element;
- the management function network element is configured to execute the methods described in the embodiments corresponding to FIG. 17 to FIG. 18 .
- the present application also provides a computer-readable medium, where computer-executable instructions are stored in the computer-readable storage medium, and when called by the computer, the computer-executable instructions are used to cause the computer to execute the The operation of the session management function network element in the method described in any one of Fig. 16, or, the computer-executable instruction is used to make the computer execute any one of Fig. 7 to Fig. 10 when called by the computer
- the policy controls the operation of the functional network element, or, when the computer-executable instruction is called by the computer, it is used to make the computer execute the method described in any one of Figures 15 to 18. Operation of network elements with entry and mobility management functions.
- the present application also provides a computer program product, which is used to store computer software instructions.
- the operation of the session management function network element in the method described in any one of FIGS. 7 to 16 is realized.
- the operation of the policy control functional network element in the method described in any one of FIGS. 7 to 10 or the operation of the access and mobility management functional network element in the method described in any one of FIGS. 15 to 18 .
- all or part may be implemented by software, hardware, firmware or any combination thereof.
- software When implemented using software, it may 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 instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
- 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 transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
- the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
- a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
- an optical medium for example, a high-density digital video disc (digital video disc, DVD)
- a semiconductor medium for example, a solid state disk (solid state disk, SSD)
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Abstract
本申请提供了一种网络切片接入控制方法及通信装置,该方法包括:会话管理功能网元从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第二信息;会话管理功能网元基于第二信息,使第一网络切片中的第一分组数据单元PDU会话或第一网络切片不受网络切片接入控制。基于本申请所描述的方法,会话管理功能网元能够基于策略控制功能网元或统一数据存储库或统一数据管理功能网元发送的第二信息,及时地使第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
Description
本申请要求于2021年08月06日提交中国专利局、申请号为202110904547.4、申请名称为“一种网络切片接入控制方法及通信装置”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。
本申请涉及通信技术领域,尤其涉及一种网络切片接入控制方法及通信装置。
网络切片是根据不同业务应用对用户数、服务质量(quality of service,QoS)、带宽的要求,将物理网络切成多张相互独立的逻辑网络。3GPP中引入了网络切片准入控制功能(network slice admission control function,NSACF),来判断网络切片中的用户设备(user equipment,UE)数有没有达到网络切片支持的最大UE数,以及判断网络切片中的分组数据单元(packet data unit,PDU)会话数有没有达到网络切片支持的最大PDU会话数。
UE在网络切片注册时,取决于具体模式,接入和移动性管理功能(access and mobility management function,AMF)网元可以在注册接受之前或注册接受之后,向NSACF通知对该网络切片的UE数量加一。在UE去注册时,或收到统一数据管理(unified data management,UDM)网元的去注册通知时,向NSACF通知对该网络切片的UE数量减一。
UE在PDU会话建立流程的第一步,会话管理网元(session management function,SMF)会向NSACF通知对网络切片的PDU会话数加一。在PDU会话释放的最后一步,SMF会向NSACF通知对网络切片的PDU会话数减一。
当NSACF发现网络切片中的UE数达到网络切片支持的最大UE数时,会通知AMF限额已经达到。AMF会将该网络切片对应的S-NSSAI设置为拒绝(rejected)NSSAI,即AMF后续会拒绝UE接入这个网络切片。当NSACF发现网络切片中的PDU会话数达到网络切片支持的最大PDU会话数时,会通知SMF限额已经达到。SMF会拒绝在该网络切片中建立PDU会话。
优先级业务(如紧急业务、多媒体优先服务或关键任务服务)相关的网络切片注册、PDU会话建立不应受网络切片接入控制的影响。当UE在网络切片的注册类型指示紧急注册时,AMF确定该网络切片可以免除NSAC,即不对该网络切片的UE数量进行限制。UE在网络切片的注册类型指示紧急注册时,PDU会话建立期间可从AMF接收优先级头。SMF基于优先级头确定PDU会话所在的网络切片可以免除NSAC,即不对该网络切片的PDU会话数量进行限制。
然而如果UE在网络切片的注册类型不是紧急注册或注册/发起PDU会话时未携带优先级头时(如进行“被叫”的优先级业务,使用调用相关优先级机制Invocation-related Priority Mechanisms等),AMF/SMF就无从判断UE或PDU会话用于传递优先级业务,可能会由于切片接入控制导致优先级业务的中断或无法发起。
发明内容
本申请实施例提供了一种网络切片接入控制方法及通信装置,有利于避免优先级业务的中断或无法发起。
第一方面,本申请提供了一种网络切片接入控制方法,该方法包括:会话管理功能网元从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第二信息;会话管理功能网元基于第二信息,使第一网络切片中的第一分组数据单元PDU会话或第一网络切片不受网络切片接入控制。
基于第一方面所描述的方法,会话管理功能网元能够基于策略控制功能网元或统一数据存储库或统一数据管理功能网元发送的第二信息,及时地使第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
在一种可能的实现中,第二信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。通过使用ARP来指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,无需发送额外的指示信息指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,有利于节省指示开销。
本申请全文中,第一PDU会话关联优先级业务可以指:第一PDU会话正在传递优先级业务,或者,第一PDU会话当前未传递优先级业务,但将来要传递优先级业务(即第一PDU会话可能会传递优先级业务)。
本申请全文中,第一网络切片关联优先级业务可以指:第一网络切片正在传递优先级业务,或者,第一网络切片当前未传递优先级业务,但将来要传递优先级业务(即第一网络切片可能会传递优先级业务),或者,在第一网络切片可以使用签约的优先级业务。
本申请全文中,终端设备关联优先级业务可以指:终端设备正在传递优先级业务,或者,终端设备当前未传递优先级业务,但将来要传递优先级业务(即终端设备可能会传递优先级业务),或者,终端设备可以使用签约的优先级业务。
在一种可能的实现中,会话管理功能网元基于第二信息,向接入和移动管理功能网元发送第三信息,该第三信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务。通过向接入和移动管理功能网元发送第三信息,这样接入和移动管理功能网元接收第三信息之后,就可基于第三信息及时地使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
在一种可能的实现中,会话管理功能网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制的具体实施方式为:
当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,会话管理功能网元不拒绝建立第一PDU会话;和/或,
会话管理功能网元不向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一;和/或,
会话管理功能网元向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量减一;和/或,
会话管理功能网元向网络切片准入控制功能网元指示使第一网络切片不受网络切片接入控制。
在一种可能的实现中,会话管理功能网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制之后,会话管理功能网元还可从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第五信息;会话管理功能网元基于第五信 息,使第一PDU会话或第一网络切片(重新)受网络切片接入控制。
基于该可能的实现方式,会话管理功能网元能够基于策略控制功能网元或统一数据存储库或统一数据管理功能网元发送的第五信息,及时地使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,第五信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的分配与抢占优先级ARP,第五信息的值为第二值。
在一种可能的实现中,会话管理功能网元使第一PDU会话或第一网络切片受网络切片接入控制的具体实施方式为:会话管理功能网元向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一;和/或,会话管理功能网元向网络切片准入控制功能网元指示使第一网络切片受网络切片接入控制。
在一种可能的实现中,会话管理功能网元基于第五信息,向接入和移动管理功能网元发送第六信息,该第六信息用于指示第一PDU会话或第一网络切片不关联优先级业务。
基于该可能的实现方式,接入和移动管理功能网元接收第六信息之后,就可基于第六信息及时地使第一PDU会话对应的终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
第二方面,本申请提供了一种网络切片接入控制方法,该方法包括:在建立第一PDU会话时,会话管理功能网元使第一PDU会话不受网络切片接入控制;若会话管理功能网元在建立第一PDU会话之后的预设时间段之内,未接收到第二信息,则使第一PDU会话受网络切片接入控制;其中,第二信息来自策略控制功能网元或统一数据存储库或统一数据管理功能网元,该第二信息指示第一网络切片中的第一PDU会话或者该第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者,该第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。
基于第二方面所描述的方法,在建立第一PDU会话时,会话管理功能网元默认使第一PDU会话不受网络切片接入控制。无需在第一PDU会话之后就向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一,以及在接收到第二信息之后,又指示网络切片准入控制功能网元将第一网络切片的PDU会话数量减一。有利于减少信令交互。
在一种可能的实现中,若会话管理功能网元在建立第一PDU会话之后的预设时间段之内,接收到第二信息,则会话管理功能网元基于第二信息,向接入和移动管理功能网元发送第三信息,该第三信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备关联优先级业务。
通过向接入和移动管理功能网元发送第三信息,这样接入和移动管理功能网元接收第三信息之后,就可基于第三信息及时地使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
在一种可能的实现中,会话管理功能网元使第一PDU会话不受网络切片接入控制的具体实施方式为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,会话管理功能网元不拒绝建立第一PDU会话;和/或,不向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一。
在一种可能的实现中,会话管理功能网元使第一PDU会话受网络切片接入控制的具体实施方式为:会话管理功能网元向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一。
在一种可能的实现中,若会话管理功能网元在接收到第二信息之后接收到第五信息,则会话管理功能网元基于第五信息,使第一PDU会话受网络切片接入控制;第五信息来自策略控制功能网元或统一数据存储库或统一数据管理功能网元,第五信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的分配与抢占优先级ARP,第五信息的值为第二值。
基于该可能的实现方式,会话管理功能网元能够基于策略控制功能网元发送的第五信息,及时地使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,会话管理功能网元基于第五信息,向接入和移动管理功能网元发送第六信息,该第六信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务。基于该可能的实现方式,接入和移动管理功能网元接收第六信息之后,就可基于第六信息及时地使第一PDU会话对应的终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
第三方面,本申请提供了一种网络切片接入控制方法,该方法包括:接入和移动管理功能网元从会话管理功能网元或统一数据存储库或统一数据管理功能网元接收第三信息,该第三信息用于指示第一网络切片中的第一PDU会话或第一网络切片或者终端设备关联优先级业务,该终端设备为第一PDU会话对应的终端设备,或者,该终端设备为请求注册第一网络切片的终端设备;接入和移动管理功能网元基于第三信息,使该终端设备不受第一网络切片的接入控制,或使该第一网络切片不受接入控制。
基于第三方面所描述的方法,接入和移动管理功能网元能够在第一PDU会话或第一网络切片或者终端设备关联优先级业务时,及时地使终端设备或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
在一种可能的实现中,接入和移动管理功能网元使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制的具体实施方式为:
接入和移动管理功能网元向网络切片准入控制功能网元指示将第一网络切片的终端设备数量减一;和/或;
当第一网络切片的终端设备数量达到第一网络切片对应的终端设备数量阈值时,接入和移动管理功能网元不拒绝终端设备所请求的第一网络切片;和/或,
接入和移动管理功能网元不向网络切片准入控制功能网元指示将第一网络切片的终端设备数量加一;和/或,
接入和移动管理功能网元向网络切片准入控制功能网元指示第一网络切片不受网络切片接入控制。
在一种可能的实现中,接入和移动管理功能网元从会话管理功能网元或统一数据存储库或统一数据管理功能网元接收第六信息,该第六信息用于指示第一PDU会话或第一网络切片或者终端设备不关联优先级业务;接入和移动管理功能网元基于第六信息,使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
基于该可能的实现方式,第一PDU会话或第一网络切片不关联优先级业务时,接入和移动管理功能网元能够及时使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
在一种可能的实现中,接入和移动管理功能网元使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制的具体实施方式为:
接入和移动管理功能网元向网络切片准入控制功能网元指示将第一网络切片的终端设备 数量加一;和/或;
接入和移动管理功能网元向网络切片准入控制功能网元指示第一网络切片受网络切片接入控制。
第四方面,本申请提供了一种网络切片接入控制方法,该方法包括:策略控制功能网元从应用功能网元或者统一数据存储库或统一数据管理功能网元接收第一信息;策略控制功能网元基于第一信息向会话管理功能网元发送第二信息;其中,第一信息用于指示第一网络切片中的第一分组数据单元PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务;第二信息用于会话管理功能网元使第一网络切片中的第一分组数据单元PDU会话或第一网络切片不受网络切片接入控制。
基于第一方面所描述的方法,有利于在第一网络切片中的第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务时,会话管理功能网元及时地使第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
在一种可能的实现中,第二信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者,第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。通过使用ARP来指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,无需发送额外的指示信息指示第一PDU会话或第一网络切片关联优先级业务,有利于节省指示开销。
在一种可能的实现中,策略控制功能网元向会话管理功能网元发送第二信息之后,策略控制功能网元还可从应用功能网元或者统一数据存储库或统一数据管理功能网元接收第四信息;策略控制功能网元基于第四信息向会话管理功能网元发送第五信息;其中,第四信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务;第五信息用于使第一PDU会话或第一网络切片受网络切片接入控制。
基于该可能的实现方式,有利于在第一网络切片中的第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务时,会话管理功能网元及时地使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,第五信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的分配与抢占优先级ARP,第五信息的值为第二值。通过使用ARP来指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,无需发送额外的指示信息指示第一PDU会话或第一网络切片不关联优先级业务,有利于节省指示开销。
第五方面,本申请提供了一种通信装置,该通信装置可以是会话管理功能网元,也可以是会话管理功能网元中的装置,或者是能够和会话管理功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。该通信装置可执行第一方面或第二方面所述的方法。该通信装置的功能可以通过硬件实现,也可以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单元或模块。该单元或模块可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第一方面或第二方面所述的方法以及有益效果。
第六方面,本申请提供了一种通信装置,该通信装置可以是接入和移动管理功能网元,也可以是接入和移动管理功能网元中的装置,或者是能够和接入和移动管理功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。该通信装置可执行第三方面所述的方法。该通信装置的功能可以通过硬件实现,也可以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单元或模块。该单元或模块可以是软件和/或硬件。该通 信装置执行的操作及有益效果可以参见上述第三方面所述的方法以及有益效果。
第七方面,本申请提供了一种通信装置,该通信装置可以是策略控制功能网元,也可以是策略控制功能网元中的装置,或者是能够和策略控制功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。该通信装置可执行第四方面所述的方法。该通信装置的功能可以通过硬件实现,也可以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单元或模块。该单元或模块可以是软件和/或硬件。该通信装置执行的操作及有益效果可以参见上述第四方面所述的方法以及有益效果。
第八方面,本申请提供了一种通信装置,所述通信装置包括处理器,当所述处理器调用存储器中的计算机程序时,如第一方面~第四方面中任意一项的方法被执行。
第九方面,本申请提供了一种通信装置,通信装置包括处理器和存储器,处理器和存储器耦合;处理器用于实现如第一方面~第四方面中任意一项的方法。
第十方面,本申请提供了一种通信装置,通信装置包括处理器、存储器和收发器,处理器和存储器耦合;收发器用于收发数据,处理器用于实现如第一方面~第四方面中任意一项的方法。
第十一方面,本申请提供了一种通信装置,通信装置包括处理器和接口,处理器和所述接口耦合;该接口用于接收或输出信号,处理器用于执行代码指令,以使如第一方面~第四方面中任意一项的方法被执行。
第十二方面,本申请提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序或指令,当所述计算机程序或指令被通信装置执行时,实现如第一方面~第四方面中任意一项所述的方法。
第十三方面,本申请提供一种包括指令的计算机程序产品,当通信装置读取并执行该指令时,使得通信装置执行如第一方面~第四方面中任意一项所述的方法。
第十四方面,本申请提供了一种通信***,包括用于执行上述第一方面或第二方面所述的方法的通信装置以及用于执行上述第四方面所述方法的通信装置。
第十五方面,本申请提供了一种通信***,包括用于执行上述第一方面或第二方面所述的方法的通信装置以及用于执行上述第三方面所述方法的通信装置。
图1是本申请实施例提供的一种5G非漫游基于服务化接口的***架构的示意图;
图2是本申请实施例提供的一种5G非漫游基于参考点的***架构的示意图;
图3是本申请实施例提供的一种本地疏导(local breakout,LBO)的漫游场景下基于服务化接口的***架构的示意图;
图4是本申请实施例提供的一种LBO的漫游场景下基于参考点的***架构的示意图;
图5是本申请实施例提供的一种归属路由(home routed,HR)的漫游场景下基于服务化接口的***架构的示意图;
图6是本申请实施例提供的一种HR的漫游场景下基于参考点的***架构的示意图;
图7是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图8是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图9是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图10是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图11是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图12是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图13是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图14是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图15是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图16是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图17是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图18是本申请实施例提供的一种网络切片接入控制方法的流程示意图;
图19是本申请实施例提供的一种通信装置的结构示意图;
图20是本申请实施例提供的一种通信装置的结构示意图;
图21是本申请实施例提供的一种芯片的结构示意图。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着,结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例,也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是,本文所描述的实施例可以与其它实施例相结合。
在本申请中,“至少一个(项)”是指一个或者多个,“多个”是指两个或两个以上,“至少两个(项)”是指两个或三个及三个以上,“和/或”,用于描述关联对象的对应关系,表示可以存在三种关系,例如,“A和/或B”可以表示:只存在A,只存在B以及同时存在A和B三种情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指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和b”,“a和c”,“b和c”,或“a和b和c”,其中a,b,c可以是单个,也可以是多个。
为了能够更好地理解本申请,下面对本申请实施例提供的几种***架构进行介绍:
图1是本申请实施例提供的一种5G非漫游基于服务化接口的***架构的示意图。
图2是本申请实施例提供的一种5G非漫游基于参考点的***架构的示意图。
图3是本申请实施例提供的一种本地疏导(local breakout,LBO)的漫游场景下基于服务化接口的***架构的示意图。
图4是本申请实施例提供的一种LBO的漫游场景下基于参考点的***架构的示意图。
图5是本申请实施例提供的一种归属路由(home routed,HR)的漫游场景下基于服务化接口的***架构的示意图。
图6是本申请实施例提供的一种HR的漫游场景下基于参考点的***架构的示意图。
图1~图6所示的***架构分为终端设备、运营商网络和数据网络(data network,DN)。
①终端设备也可以称为用户设备(user equipment,UE)。本申请实施例中的终端设备是 一种具有无线收发功能的设备,可以经接入网(access network,AN)中的接入网设备与一个或多个核心网(core network,CN)进行通信。终端设备也可称为接入终端、终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线网络设备、用户代理或用户装置等。终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是蜂窝电话(cellular phone)、无绳电话、会话启动协议(session initiation protocol,SIP)电话、智能电话(smart phone)、手机(mobile phone)、无线本地环路(wireless localloop,WLL)站、个人数字处理(personal digital assistant,PDA),可以是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设备、车载设备、可穿戴设备、无人机设备或物联网、车联网中的终端、第五代移动通信(fifth generation,5G)网络以及未来网络中的任意形态的终端、中继用户设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端等,其中,中继用户设备例如可以是5G家庭网关(residential gateway,RG)。例如终端设备可以是虚拟现实(virtual reality,VR)终端、增强现实(augmented reality,AR)终端、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。本申请实施例对此并不限定。
②运营商网络可以包括网络切片选择功能(network slice selection function,NSSF)、网络开放功能(network exposure function,NEF)、网络存储功能(network function repository function,NRF)、策略控制功能(policy control function,PCF)、统一数据管理(unified data management,UDM)网元、应用功能(application function,AF)、网络切片和SNPN身份验证和授权功能(NSSAAF)、认证服务器功能(authentication server function,AUSF)、接入与移动性管理功能(access and mobility management function,AMF)、会话管理功能(session management function,SMF)、服务通信代理(service communication prox,SCP)、网络切片准入控制功能(network slice admission control function,NSACF)、用户面功能(user plane function,UPF)、统一数据存储库(unified data repository,UDR)以及(无线)接入网((radio)access network,(R)AN)等。
本申请主要涉及AF网元、PCF网元、SMF网元、AMF网元、NSACF网元、UDM网元和UDR。下面对这几个网元进一步进行介绍:
AF网元:主要支持与3GPP核心网交互来提供服务,例如影响数据路由决策,策略控制功能或者向网络侧提供第三方的一些服务。
PCF网元:主要支持提供统一的策略框架来控制网络行为,提供策略规则给控制层网络功能,同时负责获取与策略决策相关的用户签约信息。
SMF网元:主要负责移动网络中的会话管理,如会话建立、修改、释放。具体功能如为用户分配IP地址、选择提供报文转发功能的UPF等。
AMF网元:主要负责移动网络中的移动性管理,如用户位置更新、用户注册网络、用户切换等。
NSACF网元:支持监控和控制每个网络切片的注册用户数。支持监控和控制每个网络切片建立的PDU会话数。支持基于事件的网络切片状态通知并向其他NF报告。
UDM网元:用于生成认证信任状,用户标识处理(如存储和管理用户永久身份等),接入授权控制和签约数据管理等。
UDR:包括UDM的签约数据,PCF的策略数据、NEF的开放的结构化数据和应用数据(包括应用检测的数据包流描述(PFD)、多个UE的AF请求信息等)。UDR可以部署在每个PLMN中,其功能如下:
-NEF访问的UDR属于NEF所在的同一个PLMN。
-如果UDM支持***架构,UDM访问的UDR属于UDM所在的同一个PLMN。
-PCF访问的UDR属于PCF所在的同一个PLMN。
③DN:指的是为用户提供数据传输服务的服务网络,如IMS(IP multi-media service,IP多媒体业务)、Internet等。UE通过UE到DN之间建立的分组数据单元(packet data unit,PDU)会话,来访问DN。
下面对本申请提供的网络切片接入控制方法及通信装置进行详细介绍:
下文实施例中涉及应用功能网元、策略控制功能网元、会话管理功能网元、接入和移动管理功能网元、网络切片准入控制功能网元、统一数据存储库或统一数据管理功能网元。下文以应用功能网元为AF网元,策略控制功能网元为PCF网元,会话管理功能网元为SMF网元、接入和移动管理功能网元为AMF网元、网络切片准入控制功能网元为NSACF网元、统一数据存储库为UDR、统一数据管理功能网元为UDM为例。应用功能网元、策略控制功能网元、会话管理功能网元、接入和移动管理功能网元、网络切片准入控制功能网元、统一数据存储库或统一数据管理功能网元也可以是其他具有应用功能、策略控制功能、会话管理功能、接入和移动管理功能、网络切片准入控制功能、数据存储功能、数据管理功能的网络设备,本申请实施例不做限定。特别的,比如,在与演进型分组核心网(evolved packet core,EPC)互通的场景中,会话管理功能网元可以是SMF+PGW-C(session management function+packet data network gateway for control plane)网元,接入和移动管理功能网元可以为移动性管理实体(mobility management entity,MME)或AMF网元等。
请参见图7,图7是本申请实施例提供的一种网络切片接入控制方法的流程示意图。如图7所示,该网络切片接入控制方法包括如下701~703部分。其中:
701、AF网元向PCF网元发送第一信息。相应地,PCF网元可以接收该第一信息。
其中,该第一信息用于指示第一网络切片中的第一PDU会话关联优先级业务。第一PDU会话关联优先级业务表示:第一PDU会话正在传递优先级业务,或者,第一PDU会话当前未传递优先级业务,但将来要传递优先级业务(即第一PDU会话可能会传递优先级业务)。
本申请实施例中,AF网元可以识别出第一PDU会话是否与优先级业务关联,所以AF网元可以向PCF网元发送第一信息。
本申请实施例中,AF网元可以在第一PDU会话建立之后,向PCF网元发送第一信息。比如,第一信息可以为紧急指示(emergency indicator),或(MPS 5GS)优先级指示(priority indicator)等。
702、PCF网元基于第一信息向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
其中,第二信息用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
在一种可能的实现中,该第二信息用于指示第一PDU会话关联优先级业务。即PCF网元可以显示地向SMF网元指示第一PDU会话关联优先级业务。
在另一种可能的实现中,第二信息为第一PDU会话对应的分配与抢占优先级(allocation and retention priority,ARP),第二信息的值为第一值。即PCF网元可以通过ARP隐式地向SMF网元指示第一PDU会话关联优先级业务。
其中,ARP可以承载于策略信息中发送给SMF网元。例如,策略信息可以为第一PDU会话对应的PCC规则。或者,策略信息可以是第一PDU会话对应的PDU会话策略信息。具体的,ARP可以是该第一PDU会话中某一业务对应的PCC规则中的ARP,也可以是该第一PDU会话的授权默认ARP。
ARP包含有关优先级、抢占能力和被抢占能力的信息。这允许在资源限制的情况下决定QoS流建立/修改/切换是可以接受还是需要拒绝(通常用于GBR流量的准入控制)。它还可以用于决定在资源限制期间抢占哪个现有QoS流,即释放哪个QoS流以释放资源。ARP的值越小表示QoS流越不能被抢占。因此,可以将ARP的值设置为较小值,以指示向SMF网元指示第一PDU会话关联优先级业务。例如,ARP的值可以设置为0或1。通过使用ARP来向SMF网元指示第一PDU会话关联优先级业务,无需发送额外的指示信息指示第一PDU会话关联优先级业务,有利于节省指示开销。
或者,第二信息也可以是其他的某个用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制的信息。
703、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
也就是说,SMF网元可以基于第二信息仅使第一PDU会话不受网络切片接入控制。或者,使第一PDU会话所在的整个网络切片不受接入控制。
在一种可能的实现中,SMF网元在从PCF网元获取策略信息后再执行NSAC流程(而不是在PDU会话建立第一步,即不是在SMF网元收到终端设备的PDU会话建立请求时执行NSAC流程)。
在一种可能的实现中,SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制(即SMF网元跳过对应的NSAC流程)的具体实施方式为:SMF网元向NSACF网元指示将第一网络切片的PDU会话数量减一;和/或,SMF网元向NSACF网元指示使第一网络切片不受网络切片接入控制。
例如,由于第一PDU会话已经建立,NSACF网元已经将第一PDU会话计入第一网络切片的PDU会话数量。所以,SMF网元使第一PDU会话不受网络切片接入控制的具体实施方式可以为:SMF网元向NSACF网元指示将第一网络切片的PDU会话数量减一。即NSACF网元不将第一PDU会话计入第一网络切片的PDU会话数量。
再如,SMF网元使第一网络切片不受网络切片接入控制的具体实施方式为:SMF网元向NSACF网元指示使第一网络切片不受网络切片接入控制。即NSACF网元不统计第一网络切片的PDU会话数量。
可选的,NSACF网元可以进一步通知其他SMF网元,该第一网络切片的PDU会话不受网络切片接入控制。SMF网元可以不必向NSACF网元上报该第一网络切片的PDU会话数量变化。这里的其他SMF网元可以是NSACF网元所有服务范围内的SMF网元;也可以是所有服务第一PDU会话对应的终端设备的SMF网元。服务终端设备具体指服务终端设备对应的PDU会话。后者要求SMF网元在向NSACF网元上报PDU会话数量变化时,同时上报UE标识,这样NSACF网元就知道哪些SMF网元为某个终端设备的会话服务了。
在一种可能的实现中,SMF网元还可基于第二信息,向AMF网元发送第三信息,该第三信息用于指示第一PDU会话关联优先级业务。这样AMF网元接收第三信息之后,就可基 于第三信息及时地使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。关于AMF网元接收第三信息之后的相关操作,可参见图15对应的实施例中的描述,在此不赘述。
可见,通过实施图7所描述的方法,在第一PDU会话关联优先级业务时,SMF网元能够及时地使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
请参见图8,图8是本申请实施例提供的另一种网络切片接入控制方法的流程示意图。如图8所示,该网络切片接入控制方法包括如下801~806部分。其中:
801、AF网元向PCF网元发送第一信息。相应地,PCF网元可以接收该第一信息。
802、PCF网元基于第一信息向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
803、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
关于步骤801~步骤803的相关描述,可参见图7中的步骤701~步骤703的描述,在此不赘述。
804、AF网元向PCF网元发送第四信息。相应地,PCF网元可以接收该第四信息。
本申请实施例中,第四信息用于指示第一PDU会话不关联优先级业务。
805、PCF网元基于第四信息向SMF网元发送第五信息。相应地,SMF网元可以接收该第五信息。
本申请实施例中,第五信息用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,第五信息用于指示第一PDU会话不关联优先级业务。即PCF网元可以显示地向SMF网元指示第一PDU会话不关联优先级业务。
在另一种可能的实现中,第五信息为第一PDU会话对应的ARP,第五信息的值为第二值。即PCF网元可以通过ARP隐式地向SMF网元指示第一PDU会话不关联优先级业务。其中,第二值与上文中的第一值不相同。第二值可以是一个较大的值。
其中,ARP可以承载于策略信息中发送给SMF网元。例如,策略信息可以为第一PDU会话对应的PCC规则。或者,策略信息可以是第一PDU会话对应的PDU会话策略信息。具体的,ARP可以是该第一PDU会话中某一业务对应的PCC规则中的ARP,也可以是该第一PDU会话的授权默认ARP。
或者,第五信息也可以是其他的某个用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制的信息。
806、SMF网元基于第五信息,使第一PDU会话或第一网络切片受网络切片接入控制。
也就是说,SMF网元可以基于第五信息仅使第一PDU会话受网络切片接入控制。或者,使第一PDU会话所在的整个网络切片受接入控制。例如,如果SMF网元可以基于第二信息仅使第一PDU会话不受网络切片接入控制,那么,SMF网元可以基于第五信息仅使第一PDU会话受网络切片接入控制。如果SMF网元可以基于第二信息使第一PDU会话所在的整个网络切片不受接入控制,那么,SMF网元可以基于第五信息使第一PDU会话所在的整个网络切片受接入控制。
在一种可能的实现中,SMF网元使第一PDU会话或第一网络切片受网络切片接入控制 (即SMF网元执行对应的NSAC流程)的具体实施方式为:SMF网元向NSACF网元指示将第一网络切片的PDU会话数量加一;和/或,SMF网元向NSACF网元指示使第一网络切片受网络切片接入控制。
例如,SMF网元使第一PDU会话受网络切片接入控制的具体实施方式可以为:SMF网元向NSACF网元指示将第一网络切片的PDU会话数量加一。即NSACF网元将第一PDU会话计入第一网络切片的PDU会话数量。
再如,SMF网元使第一网络切片受网络切片接入控制的具体实施方式为:SMF网元向NSACF网元指示使第一网络切片受网络切片接入控制。即NSACF网元会统计第一网络切片的PDU会话数量。可选的,NSACF网元可以进一步通知其他SMF网元,该第一网络切片的PDU会话受网络切片接入控制。SMF网元可向NSACF网元上报该第一网络切片的PDU会话数量变化。这里的其他SMF网元可以是NSACF网元所有服务范围内的SMF网元;也可以是所有服务第一PDU会话对应的终端设备的SMF网元。
在一种可能的实现中,SMF网元基于第五信息,向AMF网元发送第六信息,该第六信息用于指示第一PDU会话不关联优先级业务。这样AMF网元接收第六信息之后,就可基于第六信息及时地使第一PDU会话对应的终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。关于AMF网元接收第六信息之后的相关操作,可参见图16对应的实施例中的描述,在此不赘述。AMF网元也可以是其他具有接入和移动管理功能的网络设备。
通过执行图8所描述的方法,SMF网元能够在第一PDU会话不关联优先级业务时,及时地使第一PDU会话或第一网络切片受网络切片接入控制。
请参见图9,图9是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图9所示,该网络切片接入控制方法包括如下901~903部分。其中:
901、UDR/UDM网元向PCF网元发送第一信息。相应地,PCF网元可以接收该第一信息。
本申请实施例中,第一信息可以是UDR/UDM网元中的签约信息或应用信息。该应用信息可以是AF网元通过网络开放功能(network exposure function,NEF)网元提前写入UDR/UDM网元的。
在一种可能的实现中,该第一信息用于指示第一网络切片关联优先级业务。本申请实施例全文中,第一网络切片关联优先级业务表示:第一网络切片正在传递优先级业务,或者,第一网络切片当前未传递优先级业务,但将来要传递优先级业务(即第一网络切片可能会传递优先级业务),或者,在第一网络切片可以使用签约的优先级业务。
可选的,该第一信息用于指示第一网络切片关联优先级业务具体可以为:该第一信息用于指示第一网络切片中的第一DNN关联优先级业务。第一网络切片为第一PDU会话所在网络切片。第一DNN为第一PDU会话所在数据网络名称(data network name,DNN)。本申请实施例全文中,第一DNN关联优先级业务表示:第一DNN正在传递优先级业务,或者,第一DNN当前未传递优先级业务,但将来要传递优先级业务(即第一DNN可能会传递优先级业务),或者,在第一DNN可以使用签约的优先级业务。
在另一种可能的实现中,第一信息也可以指示终端设备/User关联优先级业务。本申请实施例全文中,终端设备关联优先级业务可以指:终端设备正在传递优先级业务,或者,终端设备当前未传递优先级业务,但将来要传递优先级业务(即终端设备可能会传递优先级业务),或者,终端设备可以使用签约的优先级业务(Indicates the user is subscribed to MPS)。即该终端设 备/User为第一PDU会话对应的终端设备/User。例如,签约信息中包含MPS priority。
在一种可能的实现中,UDR/UDM网元可以在第一PDU会话建立过程中,向PCF网元发送第一信息。比如,在第一PDU会话建立过程中,PCF网元会向UDM网元请求获取第一PDU会话对应的终端设备在第一网络切片或第一DNN的签约信息。
在另一种可能的实现中,也可以在第一PDU会话建立之后,UDM网元/UDR向PCF网元发送第一信息。例如,UDM网元/UDR检测到签约信息或应用信息有更新,则UDM网元/UDR可向PCF网元发送第一信息。
902、PCF网元基于第一信息向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
其中,第二信息用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
在一种可能的实现中,该第二信息用于指示第一PDU会话所在的第一网络切片或第一PDU会话对应的终端设备关联优先级业务。即PCF网元可以显示地向SMF网元指示第一PDU会话所在的第一网络切片或第一PDU会话对应的终端设备关联优先级业务。
在另一种可能的实现中,第二信息为第一PDU会话对应的ARP,第二信息的值为第一值。即PCF网元可以通过ARP隐式地向SMF网元指示第一网络切片关联优先级业务。
其中,ARP可以承载于策略信息中发送给SMF网元。例如,策略信息可以为第一PDU会话对应的PCC规则。或者,策略信息可以是第一PDU会话对应的PDU会话策略信息。具体的,ARP可以是该第一PDU会话中某一业务对应的PCC规则中的ARP,也可以是该第一PDU会话的授权默认ARP。
可以将ARP的值设置为较小值,以指示向SMF网元指示第一网络切片关联优先级业务。例如,ARP的值可以设置为0或1。通过使用ARP来向SMF网元指示第一网络切片关联优先级业务,无需发送额外的指示信息指示第一网络切片关联优先级业务,有利于节省指示开销。
或者,第二信息也可以是其他的某个用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制的信息。
903、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
也就是说,SMF网元可以基于第二信息仅使第一PDU会话不受网络切片接入控制。或者,使第一PDU会话所在的整个网络切片不受接入控制。
在一种可能的实现中,SMF网元在从PCF网元获取策略信息后再执行NSAC流程(而不是在PDU会话建立第一步,即不是在SMF网元收到终端设备的PDU会话建立请求时执行NSAC流程)。
在一种可能的实现中,SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制(即SMF网元跳过对应的NSAC流程)的具体实施方式为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,SMF网元不拒绝建立第一PDU会话;和/或,SMF网元不向NSACF网元指示将第一网络切片的PDU会话数量加一;和/或,SMF网元向NSACF网元指示使第一网络切片不受网络切片接入控制。
例如,SMF网元使第一PDU会话不受网络切片接入控制的具体实施方式可以为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,SMF网元不拒绝建立第一PDU会话;和/或,SMF网元不向NSACF网元指示将第一网络切片的PDU会话 数量加一,即NSACF网元不将第一PDU会话计入第一网络切片的PDU会话数量。
再如,SMF网元使第一网络切片不受网络切片接入控制的具体实施方式为:SMF网元向NSACF网元指示使第一网络切片不受网络切片接入控制。即NSACF网元不统计第一网络切片的PDU会话数量。
可选的,NSACF网元可以进一步通知其他SMF网元,该第一网络切片的PDU会话不受网络切片接入控制。SMF网元可以不必向NSACF网元上报该第一网络切片的PDU会话数量变化。这里的其他SMF网元可以是NSACF网元所有服务范围内的SMF网元;也可以是所有服务第一PDU会话对应的UE的SMF网元。
在一种可能的实现中,SMF网元还可基于第二信息,向AMF网元发送第三信息,该第三信息用于指示第一网络切片关联优先级业务。这样AMF网元接收第三信息之后,就可基于第三信息及时地使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。关于AMF网元接收第三信息之后的相关操作,可参见图15对应的实施例中的描述,在此不赘述。AMF网元也可以是其他具有接入和移动管理功能的网络设备。
可见,通过实施图9所描述的方法,在第一网络切片或第一PDU会话对应的终端设备关联优先级业务时,SMF网元能够及时地使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
请参见图10,图10是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图10所示,该网络切片接入控制方法包括如下1001~1006部分。其中:
1001、UDR/UDM网元向PCF网元发送第一信息。相应地,PCF网元可以接收该第一信息。
1002、PCF网元基于第一信息向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
1003、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
其中,步骤1001~步骤1003的具体实施方式可参见图9对应的实施例中步骤901~步骤903的具体实现方式,在此不赘述。
1004、UDR/UDM网元向PCF网元发送第四信息。相应地,PCF网元可以接收该第四信息。
本申请实施例中,第四信息用于指示第一网络切片不关联优先级业务。
1005、PCF网元基于第四信息向SMF网元发送第五信息。相应地,SMF网元可以接收该第五信息。
本申请实施例中,第五信息用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,第五信息用于指示第一PDU会话所在的第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。即PCF网元可以显示地向SMF网元指示第一PDU会话所在的第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。
在另一种可能的实现中,第五信息为第一PDU会话对应的ARP,第五信息的值为第二值。即PCF网元可以通过ARP隐式地向SMF网元指示第一PDU会话所在的第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。其中,第二值与上文中的第一值不相同。第二值可以是一个较大的值。
其中,ARP可以承载于策略信息中发送给SMF网元。例如,策略信息可以为第一PDU会话对应的PCC规则。或者,策略信息可以是第一PDU会话对应的PDU会话策略信息。具体的,ARP可以是该第一PDU会话中某一业务对应的PCC规则中的ARP,也可以是该第一PDU会话的授权默认ARP。
或者,第五信息也可以是其他的某个用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制的信息。
1006、SMF网元基于第五信息,使第一PDU会话或第一网络切片受网络切片接入控制。
步骤1006的具体实施方式,可参见图8所对应的实施例中步骤806的具体实施方式,在此不赘述。
在一种可能的实现中,SMF网元基于第五信息,向AMF网元发送第六信息,该第六信息用于指示第一网络切片不关联优先级业务。这样AMF网元接收第六信息之后,就可基于第六信息及时地使第一PDU会话对应的终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。关于AMF网元接收第六信息之后的相关操作,可参见图16对应的实施例中的描述,在此不赘述。AMF网元也可以是其他具有接入和移动管理功能的网络设备。
通过执行图10所描述的方法,SMF网元能够在第一网络切片或第一PDU会话对应的终端设备不关联优先级业务时,及时地使第一PDU会话或第一网络切片受网络切片接入控制。
请参见图11,图11是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图11所示,该网络切片接入控制方法包括如下1101~1102部分。其中:
1101、UDR/UDM网元向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
其中,第二信息用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
可选的,第二信息可以是UDR/UDM网元中的签约信息或应用信息。该应用信息可以是AF网元通过网络开放功能(network exposure function,NEF)网元提前写入UDR/UDM网元的。
在一种可能的实现中,该第二信息用于指示第一网络切片关联优先级业务。即UDR/UDM网元可以显示地向SMF网元指示第一网络切片关联优先级业务。关于第一网络切片关联优先级业务的含义可参见前文的描述,在此不赘述。
可选的,该第二信息用于指示第一网络切片关联优先级业务具体可以为:该第二信息用于指示第一网络切片中的第一DNN关联优先级业务。第一网络切片为第一PDU会话所在网络切片。第一DNN为第一PDU会话所在数据网络名称(data network name,DNN)。
在另一种可能的实现中,第二信息也可以指示终端设备/User关联优先级业务。该终端设备/User为第一PDU会话对应的终端设备/User。例如,签约信息中包含MPS priority。关于终端设备/User关联优先级业务的含义可参见前文的描述,在此不赘述。
或者,第二信息也可以是其他的某个用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制的信息。
本申请实施例中,UDR/UDM网元可以在第一PDU会话建立过程中,向SMF网元发送第二信息。比如,在第一PDU会话建立过程中,SMF网元会向UDM网元请求获取第一PDU会话对应的UE在第一网络切片或第一DNN的签约信息。
可选的,也可以在第一PDU会话建立之后,UDM网元/UDR向SMF网元发送第二信息。 例如,UDM网元/UDR检测到签约信息或应用信息有更新,则UDM网元/UDR可向SMF网元发送第二信息。
1102、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
在一种可能的实现中,SMF网元在从UDM网元/UDR获取签约信息后再执行NSAC流程(而不是在PDU会话建立第一步,即不是在SMF网元收到终端设备的PDU会话建立请求时执行NSAC流程)。
步骤1102的具体实现方式可参见图9所对应的实施例中步骤903的具体实施方式,在此不赘述。
在一种可能的实现中,SMF网元还可基于第二信息,向AMF网元发送第三信息,该第三信息用于指示第一网络切片或第一PDU会话对应的终端设备关联优先级业务。这样AMF网元接收第三信息之后,就可基于第三信息及时地使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。关于AMF网元接收第三信息之后的相关操作,可参见图15对应的实施例中的描述,在此不赘述。AMF网元也可以是其他具有接入和移动管理功能的网络设备。
通过执行图11所描述的方法,在第一网络切片或第一PDU会话对应的终端设备不关联优先级业务时,SMF网元能够及时地使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
请参见图12,图12是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图12所示,该网络切片接入控制方法包括如下1201~1204部分。其中:
1201、UDR/UDM网元向SMF网元发送第二信息。相应地,SMF网元可以接收该第二信息。
1202、SMF网元基于第二信息,使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
步骤1201~步骤1202的具体实现方式可参见图11所对应的实施例中步骤1101~步骤1102的具体实施方式,在此不赘述。
1203、UDR/UDM网元向SMF网元发送第五信息。相应地,SMF网元可以接收该第五信息。
本申请实施例中,第五信息用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制。
可选的,第五信息用于指示第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。即UDR/UDM网元可以显示地向SMF网元指示第一网络切片不关联优先级业务。
或者,第五信息也可以是其他的某个用于SMF网元使第一PDU会话或第一网络切片受网络切片接入控制的信息。
1204、SMF网元基于第五信息,使第一PDU会话或第一网络切片受网络切片接入控制。
步骤1204的具体实现方式可参见图8所对应的实施例中步骤803的具体实施方式,在此不赘述。
在一种可能的实现中,SMF网元基于第五信息,向AMF网元发送第六信息,该第六信息用于指示第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。这样AMF网元接收第六信息之后,就可基于第六信息及时地使第一PDU会话对应的终端设备受第一网络 切片的接入控制,或使第一网络切片受接入控制。关于AMF网元接收第六信息之后的相关操作,可参见图16对应的实施例中的描述,在此不赘述。AMF网元也可以是其他具有接入和移动管理功能的网络设备。
通过执行图12所描述的方法,SMF网元能够在第一网络切片或第一PDU会话对应的终端设备不关联优先级业务时,及时地使第一PDU会话或第一网络切片受网络切片接入控制。
请参见图13,图13是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图13所示,该网络切片接入控制方法包括如下1301~1302部分。其中:
1301、在建立第一PDU会话时,SMF网元使第一PDU会话不受网络切片接入控制。
1302、若SMF网元在建立第一PDU会话之后的预设时间段之内,未接收到第二信息,则SMF网元使第一PDU会话受网络切片接入控制。
其中,第二信息来自PCF网元或UDM网元或UDR,第二信息用于SMF网元使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制。
可选的,第二信息指示第一网络切片中的第一PDU会话或第一网络切片或第一PDU会话对应的终端设备关联优先级业务。或者,第二信息为第一PDU会话对应的ARP,第二信息的值为第一值,即第二信息隐式地指示第一PDU会话或第一网络切片或第一PDU会话对应的终端设备关联优先级业务。PCF网元的相关操作可参见图7~图10所对应的实施例的描述,在此不赘述。UDM网元或UDR的相关操作可参见图11和图12所对应的实施例中的描述,在此不赘述。关于第一PDU会话或第一网络切片或终端设备关联优先级业务的含义可参见前文的描述,在此不赘述。
在一种可能的实现中,SMF网元使第一PDU会话不受网络切片接入控制(即SMF网元跳过对应的NSAC流程)的具体实施方式为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,SMF网元不拒绝建立第一PDU会话;和/或,不向NSACF网元指示将第一网络切片的PDU会话数量加一,即第一PDU会话不计入第一网络切片的PDU会话数量。
在一种可能的实现中,SMF网元使第一PDU会话受网络切片接入控制(即SMF网元执行对应的NSAC流程)的具体实施方式为:SMF网元向NSACF网元指示将第一网络切片的PDU会话数量加一,即第一PDU会话计入第一网络切片的PDU会话数量。
在一种可能的实现中,若SMF网元建立第一PDU会话之后的预设时间段之内,接收到第二信息,则SMF网元基于第二信息,向AMF网元发送第三信息,该第三信息用于指示第一PDU会话或第一网络切片或第一PDU会话对应的终端设备关联优先级业务。这样AMF网元就能及时使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。关于AMF网元接收第三信息之后的相关操作,可参见图15对应的实施例中的描述,在此不赘述。
通过执行图13所描述的方法,在建立第一PDU会话时,SMF网元默认使第一PDU会话不受网络切片接入控制。无需在第一PDU会话之后就向NSACF网元指示将第一网络切片的PDU会话数量加一,以及在接收到第二信息之后,又指示NSACF网元将第一网络切片的PDU会话数量减一。有利于减少信令交互。
请参见图14,图14是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图14所示,该网络切片接入控制方法包括如下1401~1403部分。其中:
1401、在建立第一PDU会话时,SMF网元使第一PDU会话不受网络切片接入控制。
1402、若SMF网元在建立第一PDU会话之后的预设时间段之内,未接收到第二信息,则SMF网元使第一PDU会话受网络切片接入控制。
关于步骤1401~步骤1402的相关描述,可参见图13中的步骤1301~步骤1302的描述,在此不赘述。
1403、若SMF网元在接收到第二信息之后接收到第五信息,则SMF网元基于第五信息,使第一PDU会话受网络切片接入控制。
其中,第五信息来自PCF网元或UDM网元或UDR,第五信息用于SMF网元使第一PDU会话受网络切片接入控制。
可选的,第五信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的ARP,第五信息的值为第二值,即通过ARP隐式地向SMF网元指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务。第二值与上述第一值不相同。
在一种可能的实现中,SMF网元还可基于第五信息,向AMF网元发送第六信息,该第六信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务。这样AMF网元就能及时使第一PDU会话对应的终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。关于AMF网元接收第六信息之后的相关操作,可参见图16对应的实施例中的描述,在此不赘述。
通过执行图14所描述的方法,SMF网元能够在第一PDU会话不关联优先级业务时,及时地使第一PDU会话受网络切片接入控制。
请参见图15,图15是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图15所示,该网络切片接入控制方法包括如下1501~1502部分。其中:
1501、SMF网元向AMF网元发送第三信息。相应地,AMF网元可以接收该第三信息。
其中,该第三信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务。
如图7~图12所对应的实施例中的描述,SMF网元在接收到第二信息之后,基于第二信息向AMF网元发送第三信息。
如图13~图14所对应的实施例中的描述,若SMF网元在建立第一PDU会话之后的预设时间段之内,接收到所述第二信息,则SMF网元基于第二信息向AMF网元发送第三信息。
1502、AMF网元基于第三信息,使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
本申请实施例中,AMF网元可以基于第三信息仅使第一PDU会话对应的终端设备不受网络切片接入控制。或者,使第一PDU会话所在的整个网络切片不受接入控制。
在一种可能的实现中,AMF网元使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制(即AMF网元跳过对应的NSAC流程)的具体实施方式为:AMF网元向NSACF网元指示将第一网络切片的终端设备数量减一;和/或,当第一网络切片的终端设备数量达到第一网络切片对应的终端设备数量阈值时,AMF网元不拒绝终端设备所请求的第一网络切片;和/或,AMF网元不向NSACF网元指示将第一网络切片的终端设备数量加一;和/或,AMF网元向NSACF网元指示第一网络切片不受网络切片接入控制。
例如,AMF网元使第一PDU会话对应的终端设备不受第一网络切片的接入控制的具体实施方式为:AMF网元向NSACF网元指示将第一网络切片的终端设备数量减一,即NSACF网元不将第一PDU会话对应的终端设备计入第一网络切片的终端设备数量。
例如,在与EPC互通场景下,有可能(比如有PDN连接的终端设备从EPC移动到5GC)PDN连接(对应于PDU会话)会先建立,之后终端设备再在5GS中注册(由于从EPC移动到5GC时,SMF+PGC已经向NSACF请求了终端设备数减一,这时AMF本应重新向NSACF申请终端设备数加1),当收到SMF(+PGW-C)网元发送的第三信息时,AMF网元可以跳过NSAC流程,不向NSACF网元指示将第一网络切片的终端设备数量加一。以避免由于NSAC拒绝终端设备的第一网络切片,影响在第一网络切片的优先级业务的进行。在跨PLMN切换(inter-PLMN Handover)或者跨NSACF移动时,也可以有类似的操作(如,PDU会话先建立后,切换到一个新的PLMN或新的NSACF的服务区域,可能会由新的NSACF做准入控制,即旧AMF已经向NSACF请求了终端设备数减一,这时新AMF本应重新向新NSACF申请终端设备数加1)。当收到SMF(+PGW-C)网元发送的第三信息时,AMF网元可以跳过NSAC流程,不向NSACF网元指示将第一网络切片的终端设备数量加一。以避免由于NSAC拒绝终端设备的第一网络切片,影响在第一网络切片的优先级业务的进行。
例如,AMF网元使第一网络切片不受接入控制的具体实施方式为:AMF网元向NSACF网元指示第一网络切片不受网络切片接入控制。即NSACF网元不会统计第一网络切片的终端设备数量。可选的,NSACF网元可以进一步通知其他AMF网元,该第一网络切片的终端设备不受网络切片接入控制。AMF网元可以不必向NSACF网元上报该第一网络切片的终端设备数量变化。这里的其他AMF网元可以是NSACF网元所有服务范围内的AMF网元;也可以是所有服务第一PDU会话对应的终端设备的AMF网元。服务终端设备具体指服务终端设备对应的PDU会话。后者要求AMF网元在向NSACF网元上报终端设备数量变化时,同时上报终端设备标识,这样NSACF网元就知道哪些AMF网元为某个终端设备的会话服务了。
在一种可能的实现中,第三信息可以作为终端设备的上下文随AMF传递。
通过执行图15所描述的方法,AMF网元能够在第一PDU会话或第一网络切片关联优先级业务时,及时地使第一PDU会话对应的终端设备或第一网络切片不受网络切片接入控制,从而避免优先级业务的中断或无法发起。
请参见图16,图16是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图16所示,该网络切片接入控制方法包括如下1601~1604部分。其中:
1601、SMF网元向AMF网元发送第三信息。相应地,AMF网元可以接收该第三信息。
1602、AMF网元基于第三信息,使第一PDU会话对应的终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
关于步骤1601~步骤1602的相关描述,可参见图15中的步骤1501~步骤1502的描述,在此不赘述。
1603、SMF网元向AMF网元发送第六信息。
其中,该第六信息用于指示第一PDU会话或第一网络切片或第一PDU会话对应的终端设备不关联优先级业务。
如图8、图10、图12或图14所对应的实施例中的描述,SMF网元在接收到第五信息之后,基于第五信息向AMF网元发送第六信息。
1604、AMF网元基于第六信息,使终端设备受第一网络切片的接入控制,或使第一网络 切片受接入控制。
在一种可能的实现中,AMF网元使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制(即AMF网元不跳过对应的NSAC流程)的具体实施方式为:AMF网元向NSACF网元指示将第一网络切片的终端设备数量加一;和/或;AMF网元向NSACF网元指示第一网络切片受网络切片接入控制。
可选的,AMF网元使终端设备受第一网络切片的接入控制的具体实施方式为:AMF网元向NSACF网元指示将第一网络切片的终端设备数量加一。
可选的,AMF网元使第一网络切片受接入控制的具体实施方式为:AMF网元向NSACF网元指示第一网络切片受网络切片接入控制。可选的,NSACF网元可以进一步通知其他AMF网元,该第一网络切片的终端设备受网络切片接入控制。AMF网元可以向NSACF网元上报该第一网络切片的终端设备数量变化。这里的其他AMF网元可以是NSACF网元所有服务范围内的AMF网元;也可以是所有服务第一PDU会话对应的终端设备的AMF网元。
在一种可能的实现中,第三信息和第六信息可以作为终端设备的上下文随AMF传递。
通过执行图16所描述的方法,AMF网元能够在第一PDU会话或第一网络切片不关联优先级业务时,及时地使第一PDU会话对应的终端设备或第一网络切片受网络切片接入控制。
请参见图17,图17是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图17所示,该网络切片接入控制方法包括如下1701~1702部分。其中:
1701、UDR/UDM网元向AMF网元发送第三信息。相应地,AMF网元可以接收该第三信息。
其中,该第三信息用于指示第一网络切片或终端设备关联优先级业务。该终端设备为请求注册第一网络切片的终端设备。关于第一网络切片或终端设备关联优先级业务的含义可参见前文的描述,在此不赘述。
其中,UDR/UDM网元可以在终端设备注册第一网络切片的过程中,向AMF网元发送第三信息。
1702、AMF网元基于第三信息,使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
在一种可能的实现中,AMF网元使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制(即AMF网元跳过对应的NSAC流程)的具体实施方式为:
当第一网络切片的终端设备数量达到第一网络切片对应的终端设备数量阈值时,AMF网元不拒绝终端设备所请求的第一网络切片;和/或,AMF网元不向NSACF网元指示将第一网络切片的终端设备数量加一;和/或,AMF网元向NSACF网元指示第一网络切片不受网络切片接入控制。
例如,AMF网元使终端设备不受第一网络切片的接入控制的具体实施方式为:当第一网络切片的终端设备数量达到第一网络切片对应的终端设备数量阈值时,AMF网元不拒绝终端设备所请求的第一网络切片;和/或,AMF网元不向NSACF网元指示将第一网络切片的终端设备数量加一。
再如,AMF网元使第一网络切片不受接入控制的具体实施方式为:AMF网元向NSACF网元指示第一网络切片不受网络切片接入控制。可选的,NSACF网元可以进一步通知其他AMF网元,该第一网络切片的终端设备不受网络切片接入控制。AMF网元可以不必向NSACF网元上报该第一网络切片的终端设备数量变化。这里的其他AMF网元可以是NSACF网元所 有服务范围内的AMF网元;也可以是所有服务第一PDU会话对应的UE的AMF网元。
在一种可能的实现中,AMF网元可以通知SMF网元,第一网络切片关联优先级业务或者终端设备可以使用优先级业务。SMF网元可以使该终端设备在第一网络切片的PDU会话或者第一网络切片不受网络切片接入控制。
在一种可能的实现中,第三信息可以作为终端设备的上下文随AMF传递。
通过执行图17所描述的方法,AMF网元能够在第一网络切片或终端设备关联优先级业务时,及时地使请求第一网络切片的终端设备或第一网络切片不受网络切片接入控制。
请参见图18,图18是本申请实施例提供的又一种网络切片接入控制方法的流程示意图。如图18所示,该网络切片接入控制方法包括如下1801~1804部分。其中:
1801、UDR/UDM网元向AMF网元发送第三信息。相应地,AMF网元可以接收该第三信息。
1802、AMF网元基于第三信息,使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
步骤1801~步骤1802的具体实现方式可参见图17所对应的实施例中步骤1701~步骤1702的具体实施方式,在此不赘述。
1803、UDR/UDM网元向AMF网元发送第六信息。相应地,AMF网元可以接收该第六信息。
其中,该第六信息用于指示第一网络切片或终端设备不关联优先级业务。该终端设备为请求注册第一网络切片的终端设备。
1804、AMF网元基于第六信息,使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
步骤1804的具体实施方式可参见步骤1604的具体实施方式,在此不赘述。
在一种可能的实现中,AMF网元可以通知SMF网元,第一网络切片不关联优先级业务或者终端设备不可以使用优先级业务。SMF网元可以使该终端设备在第一网络切片的PDU会话或者第一网络切片受网络切片接入控制。
在一种可能的实现中,第三信息和第六信息可以作为终端设备的上下文随AMF传递。
通过执行图18所描述的方法,AMF网元能够在第一网络切片或终端设备不关联优先级业务时,及时地使请求第一网络切片的终端设备或第一网络切片受网络切片接入控制。
可以理解的是,为了实现上述实施例中功能,通信装置包括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,结合本申请中所公开的实施例描述的各示例的单元及方法步骤,本申请能够以硬件或硬件和计算机软件相结合的形式来实现。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场景和设计约束条件。
请参见图19,图19示出了本申请实施例的一种通信装置的结构示意图。图19所示的通信装置可以用于执行上述图7~图12所描述的方法实施例中会话管理功能网元(如SMF网元)的部分或全部功能。该装置可以是会话管理功能网元,也可以是会话管理功能网元中的装置,或者是能够和会话管理功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。图19所示的通信装置可以包括通信单元1901和处理单元1902。其中,处理单元1902,用于进行数据处理。通信单元1901集成有接收单元和发送单元。通信单元1901也可以称为收发单 元。或者,也可将通信单元1901拆分为接收单元和发送单元。下文的处理单元1902和通信单元1901同理,下文不再赘述。其中:
通信单元1901,用于从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第二信息;处理单元1902,还用于基于第二信息,使第一网络切片中的第一分组数据单元PDU会话或第一网络切片不受网络切片接入控制。
在一种可能的实现中,第二信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。可选的,ARP可以承载于策略信息中发送给会话管理功能网元。例如,策略信息可以为第一PDU会话对应的PCC规则。或者,策略信息可以是第一PDU会话对应的PDU会话策略信息。具体的,ARP可以是该第一PDU会话中某一业务对应的PCC规则中的ARP,也可以是该第一PDU会话的授权默认ARP。
在一种可能的实现中,通信单元1901,还用于基于第二信息,向接入和移动管理功能网元发送第三信息,该第三信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务。
在一种可能的实现中,处理单元1902使第一网络切片中的第一PDU会话或第一网络切片不受网络切片接入控制的方式具体为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,不拒绝建立第一PDU会话;和/或,
不向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一;和/或,
向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量减一;和/或,
向网络切片准入控制功能网元指示使第一网络切片不受网络切片接入控制。
在一种可能的实现中,通信单元1901,还用于从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第五信息,该第五信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,该第五信息为第一PDU会话对应的分配与抢占优先级ARP,该第五信息的值为第二值;处理单元1902,还用于基于第五信息,使第一PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,处理单元1902使第一PDU会话或第一网络切片受网络切片接入控制的方式具体为:向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一;和/或,向网络切片准入控制功能网元指示使第一网络切片受网络切片接入控制。
在一种可能的实现中,通信单元1901,还用于基于第五信息,向接入和移动管理功能网元发送第六信息,该第六信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务。
请参见图19,图19示出了本申请实施例的一种通信装置的结构示意图。图19所示的通信装置可以用于执行上述图13~图14所描述的方法实施例中会话管理功能网元(如SMF网元)的部分或全部功能。该装置可以是会话管理功能网元,也可以是会话管理功能网元中的装置,或者是能够和会话管理功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。图19所示的通信装置可以包括通信单元1901和处理单元1902。其中:
处理单元1902,用于在建立第一PDU会话时,使第一PDU会话不受网络切片接入控制;
处理单元1902,还用于若在建立第一PDU会话之后的预设时间段之内,未接收到第二信息,则使第一PDU会话受网络切片接入控制;其中,第二信息来自策略控制功能网元或统一数据存储库或统一数据管理功能网元,第二信息指示第一网络切片中的第一PDU会话或者 所述第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者,第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。
在一种可能的实现中,通信单元1901,用于若在建立第一PDU会话之后的预设时间段之内,接收到第二信息,则基于第二信息,向接入和移动管理功能网元发送第三信息,该第三信息用于指示第一PDU会话或者所述第一网络切片或者第一PDU会话对应的终端设备关联优先级业务。
在一种可能的实现中,处理单元1902使第一PDU会话不受网络切片接入控制的方式具体为:当第一网络切片的PDU会话数量达到第一网络切片对应的PDU会话数量阈值时,不拒绝建立第一PDU会话;和/或,不向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一。
在一种可能的实现中,处理单元1902使第一PDU会话受网络切片接入控制的方式具体为:向网络切片准入控制功能网元指示将第一网络切片的PDU会话数量加一。
在一种可能的实现中,处理单元1902,还用于若在接收到第二信息之后接收到第五信息,则基于第五信息,使第一PDU会话受网络切片接入控制;第五信息来自策略控制功能网元或统一数据存储库或统一数据管理功能网元,第五信息用于指示第一PDU会话或者所述第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的分配与抢占优先级ARP,第五信息的值为第二值。
在一种可能的实现中,通信单元1901,还用于基于第五信息,向接入和移动管理功能网元发送第六信息,该第六信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务。
请参见图19,图19示出了本申请实施例的一种通信装置的结构示意图。图19所示的通信装置可以用于执行上述图15~图18所描述的方法实施例中接入和移动管理功能网元(如AMF网元)的部分或全部功能。该装置可以是接入和移动管理功能网元,也可以是接入和移动管理功能网元中的装置,或者是能够和接入和移动管理功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。图19所示的通信装置可以包括通信单元1901和处理单元1902。其中:
通信单元1901,用于从会话管理功能网元或统一数据存储库或统一数据管理功能网元接收第三信息,第三信息用于指示第一网络切片中的第一PDU会话或第一网络切片或者终端设备关联优先级业务,该终端设备为第一PDU会话对应的终端设备,或者,该终端设备为请求注册所述第一网络切片的终端设备;处理单元1902,用于基于第三信息,使该终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制。
在一种可能的实现中,处理单元1902使终端设备不受第一网络切片的接入控制,或使第一网络切片不受接入控制的方式具体为:
向网络切片准入控制功能网元指示将第一网络切片的终端设备数量减一;和/或;
当第一网络切片的终端设备数量达到第一网络切片对应的终端设备数量阈值时,不拒绝终端设备所请求的第一网络切片;和/或,
不向网络切片准入控制功能网元指示将第一网络切片的终端设备数量加一;和/或,
向网络切片准入控制功能网元指示第一网络切片不受网络切片接入控制。
在一种可能的实现中,通信单元1901,还用于从会话管理功能网元或统一数据存储库或统一数据管理功能网元接收第六信息,第六信息用于指示第一PDU会话或第一网络切片或者 终端设备不关联优先级业务;处理单元1902,还用于基于第六信息,使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制。
在一种可能的实现中,处理单元1902使终端设备受第一网络切片的接入控制,或使第一网络切片受接入控制的方式具体为:向网络切片准入控制功能网元指示将第一网络切片的终端设备数量加一;和/或;向网络切片准入控制功能网元指示第一网络切片受网络切片接入控制。
在一种可能的实现中,通信单元1901可以通知会话管理功能网元,第一网络切片关联优先级业务或者终端设备可以使用优先级业务。这样会话管理功能网元可以使该终端设备在第一网络切片的PDU会话或者第一网络切片不受网络切片接入控制。
在一种可能的实现中,通信单元1901可以通知会话管理功能网元,第一网络切片不关联优先级业务或者终端设备不可以使用优先级业务。这样会话管理功能网元可以使该终端设备在第一网络切片的PDU会话或者第一网络切片受网络切片接入控制。
在一种可能的实现中,第三信息和第六信息可以作为终端设备的上下文随接入和移动管理功能网元传递。
请参见图19,图19示出了本申请实施例的一种通信装置的结构示意图。图19所示的通信装置可以用于执行上述图15~图18所描述的方法实施例中策略控制功能网元(如PCF网元)的部分或全部功能。该装置可以是策略控制功能网元,也可以是策略控制功能网元中的装置,或者是能够和策略控制功能网元匹配使用的装置。其中,该通信装置还可以为芯片***。图19所示的通信装置可以包括通信单元1901和处理单元1902。其中:
通信单元1901,用于从应用功能网元或者统一数据存储库或统一数据管理功能网元接收第一信息;通信单元1901,还用于基于第一信息向会话管理功能网元发送第二信息;其中,第一信息用于指示第一网络切片中的第一分组数据单元PDU会话或第一网络切片或者第一PDU会话对应的终端设备关联优先级业务;第二信息用于会话管理功能网元使第一网络切片中的第一分组数据单元PDU会话或第一网络切片不受网络切片接入控制。
在一种可能的实现中,第二信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备关联优先级业务,或者,第二信息为第一PDU会话对应的分配与抢占优先级ARP,第二信息的值为第一值。
在一种可能的实现中,通信单元1901,还用于从应用功能网元或者统一数据存储库或统一数据管理功能网元接收第四信息;通信单元1901,还用于基于第四信息向会话管理功能网元发送第五信息;其中,第四信息用于指示第一PDU会话或第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务;第五信息用于会话管理功能网元使第一网络切片中的第一分组数据单元PDU会话或第一网络切片受网络切片接入控制。
在一种可能的实现中,第五信息用于指示第一PDU会话或者第一网络切片或者第一PDU会话对应的终端设备不关联优先级业务,或者,第五信息为第一PDU会话对应的分配与抢占优先级ARP,第五信息的值为第二值。
图20给出了一种通信装置的结构示意图。所述通信装置2000可以是上述方法实施例中的策略控制功能网元、会话管理功能网元或接入和移动管理功能网元。还可以是支持策略控制功能网元、会话管理功能网元或接入和移动管理功能网元实现上述方法的芯片、芯片***、或处理器等。该通信装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法 实施例中的说明。
所述通信装置2000可以包括一个或多个处理器2001。所述处理器2001可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端、终端芯片,DU或CU等)进行控制,执行软件程序,处理软件程序的数据。
可选的,所述通信装置2000中可以包括一个或多个存储器2002,其上可以存有指令2004,所述指令可在所述处理器2001上被运行,使得所述通信装置2000执行上述方法实施例中描述的方法。可选的,所述存储器2002中还可以存储有数据。所述处理器2001和存储器2002可以单独设置,也可以集成在一起。
可选的,所述通信装置2000还可以包括收发器2005、天线2006。所述收发器2005可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器2005可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
处理器2001用于执行上述方法实施例中策略控制功能网元、会话管理功能网元或接入和移动管理功能网元的数据处理操作。收发器2005用于执行上述方法实施例中策略控制功能网元、会话管理功能网元或接入和移动管理功能网元的数据收发操作。
另一种可能的设计中,处理器2001中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
又一种可能的设计中,可选的,处理器2001可以存有指令2003,指令2003在处理器2001上运行,可使得所述通信装置2000执行上述方法实施例中描述的方法。指令2003可能固化在处理器2001中,该种情况下,处理器2001可能由硬件实现。
又一种可能的设计中,通信装置2000可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请实施例中描述的处理器和收发器可实现在集成电路(integrated circuit,IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是策略控制功能网元、会话管理功能网元或接入和移动管理功能网元,但本申请实施例中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图20的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片***或子***;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,指令的存储部件;
(3)ASIC,例如调制解调器(MSM);
(4)可嵌入在其他设备内的模块;
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;
(6)其他等等。
对于通信装置可以是芯片或芯片***的情况,可参见图21所示的芯片的结构示意图。图21所示的芯片2100包括处理器2101、接口2102。可选的,还可包括存储器2103。其中,处理器2101的数量可以是一个或多个,接口2102的数量可以是多个。
一种设计中,对于芯片用于实现本申请实施例中策略控制功能网元、会话管理功能网元或接入和移动管理功能网元的功能的情况:
所述接口2102,用于接收或输出信号;
所述处理器2101,用于执行上述方法实施例中策略控制功能网元、会话管理功能网元或接入和移动管理功能网元的数据处理操作。
可以理解的是,本申请实施例中的一些可选的特征,在某些场景下,可以不依赖于其他特征,比如其当前所基于的方案,而独立实施,解决相应的技术问题,达到相应的效果,也可以在某些场景下,依据需求与其他特征进行结合。相应的,本申请实施例中给出的通信装置也可以相应的实现这些特征或功能,在此不予赘述。
应理解,本申请实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请还提供了一种通信***,包括会话管理功能网元和策略控制功能网元;会话管理功能网元和策略控制功能网元用于执行图7~图10对应的实施例所述的方法。
本申请还提供了一种通信***,包括统一数据存储库或统一数据管理功能网元,和会话管理功能网元;统一数据存储库或统一数据管理功能网元,和会话管理功能网元用于执行图11~图12对应的实施例所述的方法。
本申请还提供了一种通信***,包括策略控制功能网元和接入和移动管理功能网元;策略控制功能网元和接入和移动管理功能网元用于执行图15~图16对应的实施例所述的方法。
本申请还提供了一种通信***,包括统一数据存储库或统一数据管理功能网元,和接入和移动管理功能网元;统一数据存储库或统一数据管理功能网元,和接入和移动管理功能网元用于执行图17~图18对应的实施例所述的方法。
本申请还提供了一种计算机可读介质,所述计算机可读存储介质中存储有计算机可执行指令,所述计算机可执行指令在被所述计算机调用时用于使所述计算机执行图7~图16中任一项所述的方法中会话管理功能网元的操作,或,所述计算机可执行指令在被所述计算机调用时用于使所述计算机执行图7~图10中任一项所述的方法中策略控制功能网元的操作,或,所述计算机可执行指令在被所述计算机调用时用于使所述计算机执行图15~图18中任一项所述的方法中接入和移动管理功能网元的操作。
本申请还提供了一种计算机程序产品,用于储存计算机软件指令,当所述指令被通信装置执行时,实现图7~图16中任一项所述的方法中会话管理功能网元的操作,或图7~图10中任一项所述的方法中策略控制功能网元的操作,或图15~图18中任一项所述的方法中接入和移动管理功能网元的操作。
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。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述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所述计算机指令时,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,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (22)
- 一种网络切片接入控制方法,其特征在于,所述方法包括:会话管理功能网元从策略控制功能网元或统一数据存储库或统一数据管理功能网元接收第二信息;所述会话管理功能网元基于所述第二信息,使第一网络切片中的第一分组数据单元PDU会话或所述第一网络切片不受网络切片接入控制。
- 根据权利要求1所述的方法,其特征在于,所述第二信息用于指示所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备关联优先级业务,或者所述第二信息为所述第一PDU会话对应的分配与抢占优先级ARP,所述第二信息的值为第一值。
- 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:所述会话管理功能网元基于所述第二信息,向接入和移动管理功能网元发送第三信息,所述第三信息用于指示所述第一PDU会话或所述第一网络切片或者所述第一PDU会话对应的终端设备关联优先级业务。
- 根据权利要求1~3中任意一项所述的方法,其特征在于,所述会话管理功能网元使第一网络切片中的第一PDU会话或所述第一网络切片不受网络切片接入控制,包括:当所述第一网络切片的PDU会话数量达到所述第一网络切片对应的PDU会话数量阈值时,所述会话管理功能网元不拒绝建立所述第一PDU会话;和/或,所述会话管理功能网元不向网络切片准入控制功能网元指示将所述第一网络切片的PDU会话数量加一;和/或,所述会话管理功能网元向网络切片准入控制功能网元指示将所述第一网络切片的PDU会话数量减一;和/或,所述会话管理功能网元向所述网络切片准入控制功能网元指示使所述第一网络切片不受网络切片接入控制。
- 根据权利要求1~4中任意一项所述的方法,其特征在于,所述会话管理功能网元基于所述第二信息,使第一网络切片中的第一PDU会话或所述第一网络切片不受网络切片接入控制之后,所述方法还包括:所述会话管理功能网元从所述策略控制功能网元或所述统一数据存储库或所述统一数据管理功能网元接收第五信息,所述第五信息用于指示所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备不关联优先级业务,或者,所述第五信息为所述第一PDU会话对应的分配与抢占优先级ARP,所述第五信息的值为第二值;所述会话管理功能网元基于所述第五信息,使所述第一PDU会话或所述第一网络切片受网络切片接入控制。
- 根据权利要求5所述的方法,其特征在于,所述会话管理功能网元使所述第一PDU会话或所述第一网络切片受网络切片接入控制,包括:所述会话管理功能网元向网络切片准入控制功能网元指示将所述第一网络切片的PDU会话数量加一;和/或,所述会话管理功能网元向所述网络切片准入控制功能网元指示使所述第一网络切片受网络切片接入控制。
- 根据权利要求6所述的方法,其特征在于,所述方法还包括:所述会话管理功能网元基于所述第五信息,向接入和移动管理功能网元发送第六信息,所述第六信息用于指示所述第一PDU会话或所述第一网络切片或者所述第一PDU会话对应的终端设备不关联优先级业务。
- 一种网络切片接入控制方法,其特征在于,所述方法包括:在建立第一PDU会话时,会话管理功能网元使所述第一PDU会话不受网络切片接入控制;若所述会话管理功能网元在建立所述第一PDU会话之后的预设时间段之内,未接收到第二信息,则使所述第一PDU会话受网络切片接入控制;其中,所述第二信息来自策略控制功能网元或统一数据存储库或统一数据管理功能网元,所述第二信息指示第一网络切片中的所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备关联优先级业务,或者,所述第二信息为所述第一PDU会话对应的分配与抢占优先级ARP,所述第二信息的值为第一值。
- 根据权利要求8所述的方法,其特征在于,所述方法还包括:若所述会话管理功能网元在建立所述第一PDU会话之后的预设时间段之内,接收到所述第二信息,则所述会话管理功能网元基于所述第二信息,向接入和移动管理功能网元发送第三信息,所述第三信息用于指示所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备关联优先级业务。
- 根据权利要求8或9所述的方法,其特征在于,所述会话管理功能网元使所述第一PDU会话不受网络切片接入控制,包括:当所述第一网络切片的PDU会话数量达到所述第一网络切片对应的PDU会话数量阈值时,所述会话管理功能网元不拒绝建立所述第一PDU会话;和/或,不向网络切片准入控制功能网元指示将所述第一网络切片的PDU会话数量加一。
- 根据权利要求8~10中任意一项所述的方法,其特征在于,所述会话管理功能网元使所述第一PDU会话受网络切片接入控制,包括:所述会话管理功能网元向网络切片准入控制功能网元指示将所述第一网络切片的PDU会话数量加一。
- 根据权利要求8~11中任意一项所述的方法,其特征在于,所述方法还包括:若所述会话管理功能网元在接收到所述第二信息之后接收到第五信息,则所述会话管理功能网元基于所述第五信息,使所述第一PDU会话受网络切片接入控制;所述第五信息来自所述策略控制功能网元或统一数据存储库或统一数据管理功能网元,所述第五信息用于指示 所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备不关联优先级业务,或者,所述第五信息为所述第一PDU会话对应的分配与抢占优先级ARP,所述第五信息的值为第二值。
- 根据权利要求12所述的方法,其特征在于,所述方法还包括:所述会话管理功能网元基于所述第五信息,向接入和移动管理功能网元发送第六信息,所述第六信息用于指示所述第一PDU会话或者所述第一网络切片或者所述第一PDU会话对应的终端设备不关联优先级业务。
- 一种网络切片接入控制方法,其特征在于,所述方法包括:接入和移动管理功能网元从会话管理功能网元或统一数据存储库或统一数据管理功能网元接收第三信息,所述第三信息用于指示第一网络切片中的第一PDU会话或所述第一网络切片或者终端设备关联优先级业务,所述终端设备为所述第一PDU会话对应的终端设备,或者,所述终端设备为请求注册所述第一网络切片的终端设备;所述接入和移动管理功能网元基于所述第三信息,使所述终端设备不受所述第一网络切片的接入控制,或使所述第一网络切片不受接入控制。
- 根据权利要求14所述的方法,其特征在于,所述接入和移动管理功能网元使所述终端设备不受所述第一网络切片的接入控制,或使所述第一网络切片不受接入控制,包括:所述接入和移动管理功能网元向网络切片准入控制功能网元指示将所述第一网络切片的终端设备数量减一;和/或;当所述第一网络切片的终端设备数量达到所述第一网络切片对应的终端设备数量阈值时,所述接入和移动管理功能网元不拒绝所述终端设备所请求的所述第一网络切片;和/或,所述接入和移动管理功能网元不向网络切片准入控制功能网元指示将所述第一网络切片的终端设备数量加一;和/或,所述接入和移动管理功能网元向所述网络切片准入控制功能网元指示所述第一网络切片不受网络切片接入控制。
- 根据权利要求14或15所述的方法,其特征在于,所述方法还包括:所述接入和移动管理功能网元从所述会话管理功能网元或所述统一数据存储库或所述统一数据管理功能网元所述接收第六信息,所述第六信息用于指示所述第一PDU会话或所述第一网络切片或者所述终端设备不关联优先级业务;所述接入和移动管理功能网元基于所述第六信息,使所述终端设备受所述第一网络切片的接入控制,或使所述第一网络切片受接入控制。
- 根据权利要求16所述的方法,其特征在于,所述接入和移动管理功能网元使所述终端设备受所述第一网络切片的接入控制,或使所述第一网络切片受接入控制,包括:所述接入和移动管理功能网元向网络切片准入控制功能网元指示将所述第一网络切片的终端设备数量加一;和/或;所述接入和移动管理功能网元向所述网络切片准入控制功能网元指示所述第一网络切片受网络切片接入控制。
- 一种通信装置,包括用于执行如权利要求1至7中的任一项所述方法的模块,或包括用于执行如权利要求8至13中的任一项所述方法的模块,或包括用于执行如权利要求14至17中的任一项所述方法的模块。
- 一种通信装置,其特征在于,包括处理器和存储器,所述处理器和所述存储器耦合,所述处理器用于实现如权利要求1至7中任一项所述的方法,或所述处理器用于实现如权利要求8至13中任一项所述的方法,或所述处理器用于实现如权利要求14至17中任一项所述的方法。
- 一种通信装置,其特征在于,包括处理器和接口,所述处理器和所述接口耦合;所述接口用于接收或输出信号,所述处理器用于执行代码指令,以使权利要求1至7中任一项所述的方法被执行,或者,使权利要求8至13中任一项所述的方法被执行,或者,或使权利要求14至17中任一项所述的方法被执行。
- 一种计算机可读存储介质,其特征在于,所述存储介质中存储有计算机程序或指令,当所述计算机程序或指令被通信装置执行时,实现如权利要求1至7中任一项所述的方法,或实现如权利要求8至13中任一项所述的方法,或实现如权利要求14至17中任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括:计算机程序代码,所述计算机程序代码被计算机运行时,使得所述计算机执行如权利要求1~7中任一项所述的方法,或使得所述计算机执行如权利要求8~13中任一项所述的方法,或使得所述计算机执行如权利要求14~17中任一项所述的方法。
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