WO2018232570A1 - 一种注册及会话建立的方法、终端和amf实体 - Google Patents
一种注册及会话建立的方法、终端和amf实体 Download PDFInfo
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Definitions
- the embodiments of the present invention relate to the field of communications technologies, and in particular, to a terminal registration, a session establishment method, a terminal, and an acess and mobility management function (AMF) entity.
- AMF mobility management function
- the operator pre-configures the network slice selection policy (NSSP) to the terminal.
- NSSP network slice selection policy
- the terminal may also be referred to as a user equipment (UE).
- the pre-configured NSSP consists of one or more rules, each associated with a third-party application (application, App) to a single network slice selection information (S-NSSAI).
- application, App application
- S-NSSAI network slice selection information
- the corresponding S-NSSAI is mapped according to the rule of the NSSP, and a protocol data unit (PDU) session is established in the network slice corresponding to the S-NSSAI.
- PDU protocol data unit
- the UE is not pre-configured to access an NSSP of a public land mobile network (VPLMN).
- VPLMN public land mobile network
- the UE does not have an NSSP of the VPLMN, and cannot determine which slice to slice. Establish a PDU session.
- HPLMN home public land mobile network
- the UE acquires the NSSP of the VPLMN, but when the UE needs to use the application of the home public land mobile network (HPLMN), the NSSP in the VPLMN The corresponding rule cannot be found in the middle, and the UE cannot determine the S-NSSAI used to establish a PDU session.
- HPLMN home public land mobile network
- the embodiment of the present application provides a method for registering a terminal, establishing a session, a terminal, and an AMF entity, and acquiring, by the terminal, an NSSP of the VPLMN or the HPLMN, so as to accurately determine the S-NSSAI of the VPLMN or the HPLMN during the PDU session establishment process. Complete the establishment of the PDU session.
- the embodiment of the present application provides a method for registering a terminal, where the registration method includes:
- the terminal sends a registration request message to the access and mobility management function AMF entity, where the registration request message includes a first parameter, for example, NSSP indication information is required, and the first parameter is used to request a network slice selection policy;
- a first parameter for example, NSSP indication information is required, and the first parameter is used to request a network slice selection policy;
- the terminal receives the registration accept message sent by the AMF entity, and the registration accept message includes a network slice selection policy, so that the terminal can accurately determine the corresponding S- according to the current NSSP of the VPLMN or the NSSP of the HPLMN during the PDU session establishment process of the subsequent terminal.
- NSSAI when the terminal establishes a PDU session, the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the embodiment of the present application provides a method for establishing a session, where the method may include: accessing a terminal Transmitting, by the mobility management function AMF entity, a first message, where the first message includes first information, first network slice selection information, and second network slice selection information, where the first information includes information for requesting to establish a protocol data unit PDU session, the first network
- the slice selection information is used by the AMF entity to select a first session management control function SMF entity
- the second network slice selection information is used by the AMF entity to select a second SMF entity; in order to establish an PDU session, the AMF entity accurately determines the S-NSSAI, Complete the establishment of the PDU session.
- the terminal receives the second message sent by the AMF entity, the second message includes the second information, and the second information includes the information that the PDU session establishment accepts.
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI corresponding to the first application accessing the public land mobile network VPLMN; the second network slice selection information is the first application at the home public land.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection assistance information S-NSSAI that accesses the public land mobile network VPLMN; or The indication information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network VPLMN.
- an embodiment of the present application provides a method for establishing a session, where the method includes:
- the terminal sends a first message to the access and mobile network management function AMF entity, where the first message includes the first information, the network slice selection information, and the indication information, where the first information includes the information of the request establishment protocol data unit PDU session, and the network slice selection information
- the AMF entity selects a session management control function SMF entity, where the indication information is used to indicate that the network slice selection information is a single network slice selection auxiliary information S-NSSAI for accessing the public land mobile network VPLMN, or is used to indicate that the network slice selection information is a public identity.
- the terminal receives the second message sent by the AMF entity, the second message includes the second information, and the second information includes the information that the PDU session establishment accepts.
- the network slice selection information is the S-NSSAI corresponding to the first application.
- the method may further include the terminal determining the network slice selection information.
- the terminal determines network slice selection information, including:
- the terminal determines that the S-NSSAI is the network slice selection information
- the terminal determines that the S-NSSAI is the network slice selection information.
- the method for establishing a session provided by the second aspect and the method for establishing a session provided by the third aspect may be completed on the basis of the registration method provided by the first aspect.
- an embodiment of the present application provides a registration method, where the method may include:
- the access and mobility management function AMF entity receives a registration request message sent by the terminal, where the registration request message includes a first parameter, and the first parameter is used to request a network slice selection policy;
- the AMF obtains a network slice selection policy according to the registration request message
- the AMF sends a registration accept message to the terminal, and the registration accept message includes a network slice selection policy.
- the terminal in the process of establishing a PDU session, can accurately determine the S-NSSAI according to the NSSP of the current VPLMN or HPLMN, and complete the establishment of the PDU session.
- the AMF entity obtains the network slice selection policy according to the registration request message, and may include:
- the AMF entity sends a first message to the policy control function PCF entity, where the first message includes the first parameter;
- the AMF entity receives the second message sent by the PCF entity, and the second message includes a network slice selection policy.
- the embodiment of the present application provides a session establishment method, where the method includes: an access and mobility management function AMF entity receives a first message sent by a terminal, where the first message includes first information, and the first network slice selection Information and second network slice selection information, the first information including information requesting to establish a protocol data unit PDU session;
- the AMF entity determines a first session management control function SMF entity according to the first network slice selection information, and determines a second SMF entity according to the second network slice selection information;
- the AMF entity sends a second message to the terminal, the second message includes the second information, and the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the corresponding S-NSSAI according to the first network slice selection information and the second network slice selection information sent by the terminal, and complete the establishment of the PDU session.
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI corresponding to the first application accessing the public land mobile network VPLMN;
- the second network slice selection information is the S-NSSAI corresponding to the first application at the home public land mobile network HPLMN.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI that accesses the public land mobile network VPLMN.
- the indication information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- an embodiment of the present application provides a method for establishing a session, where the method includes:
- the AMF entity of the access and mobility management function receives the first message sent by the terminal, where the first message includes the first information, the first network slice selection information, and the indication information, where the first information includes the information of the request establishment protocol data unit PDU session; the indication information a single network slice selection assistance information S-NSSAI for indicating that the first network slice selection information is accessing the public land mobile network VPLMN, or S-NSSAI for indicating that the network slice selection information is the home public land mobile network HPLMN;
- the AMF determines, according to the indication information, that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI of the VPLMN, or determines that the first network slice selection information is an S-NSSAI of the HPLMN; and selects the first according to the first network slice selection information.
- a session management control function SMF entity determining, according to the first network slice selection information, the S-NSSAI of the VPLMN and the S-NSSAI correspondence information of the HPLMN, the second network slice selection information, and selecting the second network slice selection information according to the second network slice selection information Two SMF entities;
- the AMF entity sends a second message to the terminal, the second message includes the second information, and the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the used S-NSSAI according to the first network slice selection information and the indication information, and complete the establishment of the PDU session.
- the first network slice selection information is an S-NSSAI corresponding to the first application.
- the method for establishing a session provided by the fifth aspect and the method for establishing a session provided by the sixth aspect may be completed on the basis of the registration method provided by the fourth aspect.
- an embodiment of the present application provides a terminal, where the terminal includes a sending unit and a receiving unit, and is used to complete the method/step of the first aspect.
- the terminal may further include a processing unit for processing related data, and a storage unit for storing related instructions and data.
- the embodiment of the present application provides a terminal, where the terminal includes a sending unit and a receiving unit, and is used to complete the method/step of the manner of any of the second aspect or the second aspect.
- the terminal may further include a processing unit for processing related data, and a storage unit for storing related instructions and data.
- the embodiment of the present application provides a terminal, where the terminal includes a sending unit, a receiving unit, and a processing unit, and is configured to perform the method/step of the manner of any of the third aspect or the third aspect.
- the terminal may further include a storage unit for storing related instructions and data.
- the embodiment of the present application provides an access and mobility management function entity, where the access and mobility management function entity includes a receiving unit, a processing unit, and a sending unit, to complete the fourth aspect or the fourth aspect.
- the access and mobility management function entity may further include a storage unit for storing related instructions and data.
- an embodiment of the present application provides an access and mobility management function entity, where the access and mobility management function entity includes a receiving unit, a processing unit, and a sending unit, to complete the fifth aspect or the fifth aspect. Any method/step of a possible way of achieving.
- the access and mobility management function entity may further include a storage unit for storing related instructions and data.
- the embodiment of the present application provides an access and mobility management function entity, where the access and mobility management function entity includes a receiving unit, a processing unit, and a sending unit, to complete the sixth aspect or the sixth aspect. Any method/step of a possible way of achieving.
- the access and mobility management function entity may further include a storage unit for storing related instructions and data.
- the embodiment of the present application provides a terminal, where the terminal includes:
- a sender configured to send a registration request message to the access and mobility management function AMF entity, where the registration request message includes a first parameter, where the first parameter is used to request a network slice selection policy;
- the receiver is configured to receive a registration accept message sent by the AMF entity, where the network packet selection policy is included in the registration accept message, so that the terminal can accurately determine the corresponding VSSP according to the current VPLMN or the HPLMN NSSP during the PDU session establishment process.
- S-NSSAI when the terminal establishes a PDU session, the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the embodiment of the present application provides a terminal, where the terminal includes:
- a transmitter configured to send a first message to the access and mobility management function AMF entity, where the first message includes first information, first network slice selection information, and second network slice selection information, where the first information includes a request setup protocol data device Information of the PDU session, the first network slice selection information is used by the AMF entity to select the first session management control function SMF entity, and the second network slice selection information is used by the AMF entity to select the second SMF entity;
- the receiver is configured to receive a second message sent by the AMF entity, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the S-NSSAI and complete the establishment of the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI corresponding to the first application accessing the public land mobile network VPLMN; the second network slice selection information is One is applied to the S-NSSAI corresponding to the HPLMN belonging to the public land mobile network.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI for accessing the public land mobile network VPLMN.
- the indication information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- the embodiment of the present application provides a terminal, where the terminal may include:
- a transmitter configured to send a first message to the access and mobile network management function AMF entity, where the first message includes first information, network slice selection information, and indication information, where the first information includes information for requesting to establish a protocol data PDU session,
- the network slice selection information is used by the AMF entity to select a session management control function SMF entity, and the indication information is used to indicate that the network slice selection information is a single network slice selection auxiliary information S-NSSAI for accessing the public land mobile network VPLMN, or is used to indicate network slice selection.
- the information is S-NSSAI belonging to the public land mobile network HPLMN;
- a receiver configured to receive a second message sent by the AMF entity, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity in the process of establishing a PDU session, can accurately determine the S-NSSAI and complete the establishment of the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the network slice selection information is an S-NSSAI corresponding to the first application.
- the terminal further includes a processor, configured to determine network slice selection information.
- the processor determines the network slice selection information, including:
- the terminal determines that the S-NSSAI is the network slice selection information
- the terminal determines that the S-NSSAI is the network slice selection information.
- the embodiment of the present application provides an access and mobility management function AMF entity, where the AMF entity includes:
- a receiver configured to receive a registration request message sent by the terminal, where the registration request message includes a first parameter, where the first parameter is used to request a network slice selection policy;
- a processor configured to acquire a network slice selection policy according to the registration request message
- the sender is configured to send a registration accept message to the terminal, where the network accepts a selection policy.
- the network segment selection policy of the network where the terminal is located is obtained by using the first parameter sent by the terminal to the AMF entity, so that when the PDU session is established, the corresponding S-NSSAI is accurately determined according to the network slice selection policy, thereby avoiding the terminal establishing the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the processor acquires a network slice selection policy according to the registration request message, including:
- the sender sends a first message to the policy control function PCF entity, where the first message includes the first parameter;
- the receiver receives the second message sent by the PCF entity, and the second message includes a network slice selection policy.
- an embodiment of the present application provides an access and mobility management function AMF entity, where the AMF entity includes:
- a receiver configured to receive a first message sent by the terminal, where the first message includes first information, first network slice selection information, and second network slice selection information, where the first information includes information requesting to establish a protocol data PDU session;
- a processor configured to determine a first session management control function SMF entity according to the first network slice selection information, and determine a second SMF entity according to the second network slice selection information;
- a transmitter configured to send a second message to the terminal, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the terminal can accurately determine the corresponding S-NSSAI according to the current VPLMN or the NSSP of the HPLMN, so as to prevent the AMF entity from finding the S- corresponding to the network where the terminal is located when the terminal establishes the PDU session. NSSAI, unable to complete the establishment of a PDU session, and thus unable to communicate.
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI corresponding to the first application accessing the public land mobile network VPLMN;
- the second network slice selection information is the S-NSSAI corresponding to the first application at the home public land mobile network HPLMN.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI that accesses the public land mobile network VPLMN; or, the indication The information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- the embodiment of the present application provides an access and mobility management function AMF entity, where the AMF entity includes:
- a receiver configured to receive a first message sent by the terminal, where the first message includes first information, first network slice selection information, and indication information, where the first information includes information of a request to establish a protocol data PDU session; the indication information is used to indicate
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI for accessing the public land mobile network VPLMN, or an S-NSSAI for indicating that the network slice selection information is the home public land mobile network HPLMN;
- a processor configured to determine, according to the indication information, that the first network slice selection information is a single network slice selection of the VPLMN
- the auxiliary information S-NSSAI, or the first network slice selection information is determined as the S-NSSAI of the HPLMN; the first session management control function SMF entity is selected according to the first network slice selection information; and the S1 based on the first network slice selection information and the VPLMN - Corresponding relationship information of the S-NSSAI of the NSSAI and the HPLMN determines the second network slice selection information, and selects the second SMF entity according to the second network slice selection information;
- a transmitter configured to send a second message to the terminal, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the used S-NSSAI according to the first network slice selection information and the indication information, and complete the establishment of the PDU session.
- the first network slice selection information is an S-NSSAI corresponding to the first application.
- the embodiment of the present application provides a computer program product comprising instructions, when the instruction is run on a computer, performing any one of the aspects of the first aspect to the sixth aspect or any aspect A possible method/step.
- the embodiment of the present application provides a computer readable storage medium, configured to store an instruction, when the instruction is executed on a computer, perform any one of the foregoing first to sixth aspects or any Any of the possible methods/steps of implementation.
- FIG. 1 is a schematic diagram of a network framework of 3GPP supporting multiple network slices according to an embodiment of the present disclosure
- FIG. 2 is a schematic structural diagram of a core network of a 5G communication network according to an embodiment of the present application
- FIG. 3 is a schematic diagram of a network architecture of a local breakout scenario according to an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of a network architecture of a home routed scenario according to an embodiment of the present disclosure
- FIG. 5 is a flowchart of user equipment registration according to an embodiment of the present application.
- FIG. 6 is a flowchart of a method for establishing a session according to an embodiment of the present application.
- FIG. 7 is a flowchart of another method for establishing a session according to an embodiment of the present application.
- FIG. 8 is a flowchart of still another method for establishing a session according to an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of still another terminal according to an embodiment of the present application.
- FIG. 12 is a schematic structural diagram of an access and mobility management function entity according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of another access and mobility management function entity according to an embodiment of the present disclosure.
- FIG. 14 is a schematic structural diagram of still another access and mobility management function entity according to an embodiment of the present disclosure.
- FIG. 15 is a schematic structural diagram of a terminal according to an embodiment of the present application.
- FIG. 16 is a schematic structural diagram of another terminal according to an embodiment of the present disclosure.
- FIG. 17 is a schematic structural diagram of still another terminal according to an embodiment of the present application.
- FIG. 18 is a schematic structural diagram of an access and mobility management function entity according to an embodiment of the present disclosure.
- FIG. 19 is a schematic structural diagram of another access and mobility management function entity according to an embodiment of the present disclosure.
- FIG. 20 is a schematic structural diagram of still another access and mobility management function entity according to an embodiment of the present disclosure.
- the embodiment of the present application provides a method for registration, session establishment, a terminal, and an AMF entity, which are applied to a 5G communication network.
- the logical concept of network slicing and the structure of network slicing are introduced in the core network of the 5G communication network.
- Network slicing refers to a collection of logical network functional entities that support the needs of specific communication services.
- the software is defined by software defined network (SND) technology and network function virtualization (NFV) technology.
- SND software defined network
- NFV network function virtualization
- Service The logical network function entities mentioned here may include the AMF entity, the SMF entity, and the UPF entity mentioned below, as specifically described in FIG. 2.
- NFV technology can realize mapping of underlying physical resources to virtualized resources, constructing virtual machines and loading network functions (NF); SDN technology can realize logical connections between virtual machines and construct path for carrying signaling and data flows.
- the network segmentation finally implements a dynamic connection between a radio access network (RAN) and a network function entity of the core network (CN), and configures an end-to-end service chain to implement flexible networking.
- RAN radio access network
- CN core network
- Customized service The operator can determine the network slice according to the requirements of key performance indicators (KPIs) such as capacity, coverage, rate, delay, and reliability of each specific communication service, and the network slice includes a set of network function entities, thereby providing users with The required telecommunications service business and network capability services to meet specific market scenarios and needs.
- KPIs key performance indicators
- the third generation partnership project (3GPP) supports a network framework diagram of multiple network slices.
- 3GPP divides the main types of 5G network slices into the following three categories: enhanced mobility.
- Network segmentation of the type of enhanced mobile broadband (eMBB) network slice of the massive internet o thing (mIoT) type, and ultra-reliable and low latency communications (URLLC) type Network slicing, multimedia devices, etc.
- Network slices of the mIoT type are mainly oriented to terminals of the Internet of Things, which have large-scale, low mobility and low-speed requirements.
- the network slice of the URLLC type is mainly for the terminal of the car network, and the terminal has high requirements for delay and reliability.
- the mobile phone can access the eMBB type network slice for high-speed download or watch 4K high-definition video
- the sensor device can access the mMTC type network slice for small data packet transmission and system configuration update.
- the technical solution of the embodiment of the present application can be applied to a scenario in which one terminal accesses one or more network slices, in order to meet the requirement that the same terminal can support multiple communication services, improve the user experience, and allow the same terminal to access one or more network slices.
- each network slice provides a specific service for a specific terminal.
- a terminal which may also be referred to as a user equipment (UE)
- UE user equipment
- the wireless terminal can communicate with one or more core networks via the RAN, which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, can be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
- a personal communication service (PCS) phone For example, a personal communication service (PCS) phone, A cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and the like.
- a wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, The remote terminal, the access terminal, the user terminal, the user agent, the user device, or the user equipment are in the embodiment of the present application.
- the UE involved in the embodiment of the present invention may be a terminal device with high requirements for speed and mobility, such as a mobile phone, a multimedia device, or the like, or an Internet of Things terminal, or a car network. Terminal.
- a network slice is implemented into a network deployment instance (network slice instance (NSI)).
- NSS network slice instance
- a network slice can implement multiple network slice instances.
- FIG. 2 is a schematic structural diagram of a core network of a 5G communication network according to an embodiment of the present application.
- the AMF entity, the SMF entity, and the UPF entity may be one or more servers in the core network.
- the AMF entity has the functions of UE mobility management, registration management, connection management, lawful interception, support for session management (SM) information between the UE and the SMF entity, access authentication and access authorization.
- SM session management
- SMF entities have functions such as session management and roaming.
- session management functions for example, session establishment, modification, and release, include tunnel maintenance of UPF and access network (AN) nodes.
- the roaming function may include charging data collection, and signaling transmission supporting authentication/authorization with an external data network (DN).
- DN external data network
- the UPF entity has functions such as packet routing and lawful interception.
- one UE can simultaneously use two network slice instances NSI1 and NSI2, NSI1 and NSI2 share a RAN device and an AMF entity, and the SMF1 entity and the UPF1 entity are NSI1-specific network elements, and the SMF2 entity and the UPF2 entity are unique to NSI2. Network element.
- the UPF1 entity and the UPF2 entity respectively connect the corresponding data network 1 and data network 2.
- the UE and the RAN are connected through the Uu interface; the data between the RAN and the UPF1 entity and the UPF2 entity is transmitted through the N3 interface; the signaling and data between the RAN device and the AMF entity are transmitted through the N2 interface; and between the AMF entity and the SMF1 entity and the SMF2 entity.
- the signaling and data are transmitted through the N11 interface; the SMF1 entity and the UPF1 entity, and the signaling and data between the SMF1 entity and the UPF1 entity are transmitted through N4.
- the Uu interface, the N2 interface, the N3 interface, the N11 interface, and the N4 interface are defined in the standard.
- the roaming can be divided into two scenarios: home routed and local breakout. Its network architecture is shown in Figure 3 and Figure 4.
- FIG. 3 is a schematic diagram of a network architecture of a local breakout scenario according to an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of a network architecture of a home routed scenario according to an embodiment of the present disclosure.
- the AMF entity When the UE initiates a PDU session establishment request, the AMF entity first selects a network slice according to the S-NSSAI reported by the UE.
- the NSI selects a unique network element corresponding to the network slice NSI, that is, an SMF entity and a UPF entity.
- the network architecture is a network architecture of a local breakout scenario.
- the UE roams to the VPLMN and initiates a PDU session establishment request.
- the AMF entity of the VPLMN referred to as the V-AMF entity, first selects the network slice V-NSI1 of the VPLMN according to the S-NSSAI reported by the UE, and then selects the V-NSI1.
- Corresponding unique network elements namely V-SMF entity and V-UPF entity, are similar to non-roaming.
- the V-SMF entity is an SMF entity of the VPLMN where the UE is located
- the V-UPF entity is a UPF entity of the VPLMN where the UE is located.
- the network architecture is a network architecture of a home routed scenario.
- the UE roams to the VPLMN, the UE uses V-NSI1, and the V-NSI1 includes a V-RAN device and a V-AMF entity, and a unique network element V-SMF1 entity and a V-UPF1 entity; the UE The H-NSI2 is used at the home, and the unique network elements of the H-NSI2 are the H-SMF2 entity and the H-UPF2 entity.
- the V-AMF selects the V-SMF entity according to the S-NSSAI of the VPLMN and selects the H-SMF entity according to the S-NSSAI of the HPLMN, and the V-SMF entity and the H-SMF entity respectively select the V-UPF Entity and H-UPF entity.
- the uplink data transmission is from the UE to the RAN device to the V-UPF entity and then to the H-UPF entity, and the downlink reverse direction is sufficient.
- the session establishment method provided by the embodiment of the present application is described below with reference to the accompanying drawings. It should be noted that the AMF entity mentioned below, if not specifically indicated, refers to the V-AMF entity of the VPLMN.
- the specific network registration process is as shown in FIG. 5, and the process may include the following steps:
- the UE sends a registration request message to the AMF entity.
- the registration request message includes a first parameter, and the first parameter is used to request a network slice selection policy.
- the first parameter may be an NSSP indication (Need NSSP indication) information, and is used to request an NSSP from the AMF entity.
- the registration request message may further include an identifier of the UE, where the identifier of the UE may be a temporary identifier, that is, an identifier temporarily allocated for the UE, such as a globally unique temporary UE identity (GUTI), which is implemented in the present application.
- the identifier may be an identifier that is allocated to the UE by the AMF entity when the UE is last registered.
- the AMF entity acquires the NSSP from a policy control function (PCF) entity according to the registration request message.
- PCF policy control function
- the AMF entity acquires a network slice selection policy NSSP from the PCF entity according to the identity of the UE in the registration request message, such as GUTI, and the first parameter.
- the PCF entity is a logical function device, which may be a server or multiple servers, and is used to provide a policy for the control plane entity or the UE, that is, the PCF entity is used for policy management and control.
- the process of obtaining the NSSP from the PCF entity by the AMF may be specifically as shown in FIG. 5, S121 and S122.
- the AMF entity sends a UE context establishment request message to a policy control function (PCF) entity.
- PCF policy control function
- the first parameter in the user equipment context setup request message and the identifier including the UE may be a subscriber permanent identifier (SUPI), and the SUPI may include an international mobile subscriber identification (IMSI), a network access identifier (NAI), and the like.
- the identifier SUPI of the UE is determined by the AMF entity according to the identifier GUTI of the UE.
- the SUPI of the UE is the IMSI
- the AMF entity determines the identity IMSI of the UE according to the identity of the UE, the GUTI, and the relationship between the identity of the UE and the identity of the IMSI stored in the AMF entity. Change sentence In other words, the permanent identity IMSI of the UE can be found according to the UE's temporary identity GUTI.
- the AMF entity receives a UE context establishment response message sent by the PCF entity.
- the PCF entity After receiving the user context setup request message sent by the AMF entity, the PCF entity establishes a context in the PCF entity for the UE according to the IMSI of the UE, and sends a user context setup response message to the AMF entity according to the required NSSP indication information, and the user context is established.
- the response message includes the SUPI of the UE and the NSSP of the UE.
- the AMF entity After receiving the user context establishment response message, the AMF entity performs step S130.
- the AMF entity sends a registration accept message to the UE.
- the registration accept message includes NSSP, that is, the UE obtains the NSSP under the currently registered VPLMN.
- the UE may acquire the NSSP of the currently registered VPLMN from the AMF entity, instead of obtaining the mapping relationship between the NSSAI of the HPLMN and the NSSAI of the VPLMN from the AMF entity.
- the S-NSSAI used by the App under the current VPLMN can be accurately determined according to the NSSP.
- the method may further include:
- the AMF entity sends update location information to a user data management (UDM) entity.
- UDM user data management
- the UDM entity can be a server for management of user data, such as location management, contract management, and the like.
- the AMF entity determines the IMSI of the UE according to the GUTI of the UE in the received registration request message, and transmits the updated location information to the UDM.
- the UDM receives the updated location information sent by the AMF, and updates the current AMF entity of the UE according to the SUPI of the UE, and sends an update location ack message to the AMF entity.
- the AMF entity receives an update location response message sent by the UDM entity.
- the update location response message includes the subscription information of the UE for the subsequent AMF to provide the corresponding service included in the subscription information.
- FIG. 6 is a flowchart of a method for establishing a session according to an embodiment of the present invention. As shown in FIG. 6, the method may include the following steps:
- the UE sends a first message to the AMF entity.
- the UE When establishing a session, the UE needs to initiate a first message to the AMF entity.
- the first message includes first information, first network slice selection information, and second network slice selection information.
- the first information includes information requesting to establish a PDU session.
- the first information may be a message, such as a PDU session establishment request message.
- the first network slice selection information is used by the AMF entity to select the first SMF entity, for example, the first network slice selection information may be the S-NSSAI of the VPLMN; the second network slice selection information is used by the AMF to select the second SMF entity, for example, The second network slice selection information may be the S-NSSAI of the HPLMN.
- the first network slice selection information and the second network slice selection information are used to identify and determine a network slice.
- Both the first network slice selection information and the second network slice selection information may include a type of the network slice, and a information such as a vendor name of the network slice.
- the AMF entity determines, according to the first network slice selection information, the first SMF entity, and determines the second SMF entity according to the second network slice selection information.
- the first network slice selection information is the S-NSSAI of the VPLMN and the second network slice selection information is the S-NSSAI of the HPLMN.
- the AMF entity determines the V-SMF entity according to the S-NSSAI of the VPLMN. That is, the first SMF entity determines the H-SMF entity, that is, the second SMF entity, according to the S-NSSAI of the HPLMN.
- the V-UPF entity is selected by the V-SMF entity, and the H-SMF entity selects the H-UPF entity to continue the establishment of the session.
- the AMF entity sends a second message to the UE, the second message includes the second information, and the second information includes information of the PDU session establishment accept.
- the UE receives the second message sent by the AMF entity.
- the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN are sent by the UE to the AMF entity, and the S-NSSAI used by the current VPLMN and the S-NSSAI used by the HPLMN can be accurately determined.
- the S-NSSAI is used to complete the establishment of the PDU session, thereby implementing communication of the UE.
- the first network slice selection information may be the S-NSSAI corresponding to the first application in the VPLMN.
- the second network slice selection information may be the S-NSSAI corresponding to the first application in the HPLMN.
- the first application is any third-party application App installed in the UE, such as facebook, QQ, and the like.
- the AMF entity sends a second message to the UE, where the second message includes the information that the PDU session is established, including:
- the AMF entity sends a PDU session establishment response message to the RAN device.
- the PDU session establishment response message includes information of the PDU session establishment acceptance and the first tunnel identification and address information.
- the RAN device sends a radio resource control (RRC) message to the UE.
- RRC radio resource control
- the RRC message includes PDU session establishment acceptance information to inform the UE to accept the session establishment.
- the method also includes:
- the AMF entity sends a third message to the V-SMF entity.
- the third message includes a PDU session establishment request message and address information of the H-SMF entity.
- the third message may be referred to as an N11 message or the like.
- the specific name of the third message is not limited.
- the V-SMF entity determines the V-UPF entity according to the third message, and allocates the first tunnel identifier and address information of the V-UPF end and the second tunnel identifier and address information of the V-UPF end to the session being established.
- the first tunnel identifier and the address information are the identifiers and address information of the tunnel of the V-UPF end used by the RAN device to send data to the V-UPF entity, that is, the uplink (the RAN device to the V-UPF entity) and the V-UPF end of the N3 tunnel.
- the tunnel identifier and the address information; the second tunnel identifier and the address information are the identifiers and address information of the tunnel of the V-UPF end used by the H-UPF entity to send data to the V-UPF entity, that is, the downlink (H-UPF entity to V-UPF) Entity) Tunnel identification and address information of the V-UPF end of the N9 tunnel.
- the V-SMF entity determines the V-UPF entity according to the PDU session establishment request message in the third message, allocates the first tunnel identifier and address information of the V-UPF, and the second tunnel identifier and address information of the V-UPF; V-SMF The entity sends a create session message to the V-UPF entity, and the create session message includes information such as packet detection and reporting rules.
- the V-UPF entity receives a create session message sent by the V-SMF entity.
- the V-UPF entity After receiving the create session message sent by the V-SMF entity, the V-UPF entity saves the information in the create session message and responds to the response message.
- the V-SMF entity sends a create session request message to the H-SMF entity.
- the create session request message includes a second tunnel identifier and address information, that is, a tunnel identifier and address information of the V-UPF end used by the H-UPF entity to the V-UPF data transmission.
- the V-SMF entity sends a create session request message to the H-SMF entity corresponding to the address information of the H-SMF entity according to the address information of the H-SMF entity included in the third message sent by the received AMF entity.
- the H-SMF entity determines the H-UPF entity according to the Create Session Request message, and sends a Create Session message to the H-UPF entity.
- the session identifier includes the tunnel identifier and address information of the V-UPF end used by the H-UPF entity to the V-UPF data transmission, that is, the second tunnel identifier and the address information.
- the H-UPF entity receives the create session message, saves the information in the create session message, and responds to the response message.
- the H-SMF entity sends a create session response message to the V-SMF entity.
- the Create Session Response message includes the H-SMF entity assigning the tunnel identifier and address information of the H-UPF end to the uplink (V-UPF to H-UPF) N9 tunnel.
- the tunnel identifier and address information of the H-UPF end of the uplink (V-UPF to H-UPF) tunnel may be included in a create session response message, that is, the H-SMF entity sends a create session to the V-SMF entity.
- the tunnel identification and address information of the H-UPF end of the uplink (V-UPF to H-UPF) tunnel is created in the session response message.
- the AMF entity receives the fourth message.
- the fourth message includes the information that the V-SMF entity sends the PDU session establishment accept and the first tunnel identity and address information to the AMF entity, that is, the uplink (RAN device to V-UPF entity) data is sent to the V of the N3 tunnel.
- the uplink (RAN device to V-UPF entity) data is sent to the V of the N3 tunnel.
- - Tunnel identification and address information on the UPF side That is, the fourth message includes the tunnel identifier and address information of the V-UPF end of the uplink (RAN device to V-UPF entity) data transmission N3 tunnel.
- the method further includes:
- the RAN device sends a PDU session establishment response message to the AMF entity.
- the RAN device allocates the downlink (V-UPF entity to the RAN device) to send the tunnel identifier and address information of the RAN end of the data N3 tunnel, and sends the information to the AMF entity.
- the RAN device sends the tunnel identifier and address information of the RAN end of the data downlink N3 tunnel of the allocated downlink (V-UPF entity to the RAN device) to the AMF entity through the PDU session setup response message.
- the AMF entity sends a PDU session establishment response message to the V-SMF entity.
- the AMF entity needs to send the received V-UPF entity to the RAN device to send the tunnel identifier and address information of the RAN end of the data N3 tunnel to the V-SMF entity.
- the AMF entity sends the PDU session establishment response message to the V-SMF entity, and the tunnel identifier and the address information of the RAN end of the V-UPF entity to the RAN device transmitting the data N3 tunnel are included in the PDU session establishment response message and sent to the V-SMF entity.
- the V-SMF entity sends a modify session message to the V-UPF.
- the modified session message includes a tunnel identifier and address information of the RAN end of the V-UPF entity to the RAN device to send the data N3 tunnel, and a tunnel identifier and address information of the H-UPF end of the V-UPF to the H-UPF transmission data N9 tunnel.
- the V-SMF entity responds to the V-AMF entity, and the PDU session is established.
- the V-SMF entity responds to the AMF entity to complete the establishment of the PDU session.
- the first message in S201 may further include indication information for indicating that the first network slice selection information is an S-NSSAI of the HPLMN; or indication information is used to indicate The first network slice selection information is the S-NSSAI of the VPLMN.
- the AMF entity receives the first message sent by the UE, and indicates that the first network slice selection information is the S-NSSAI corresponding to the VPLMN according to the indication information, and determines that the second network slice selection information is the S-NSSAI of the HPLMN; or the AMF entity according to the indication information.
- the first network slice selection information Instructing the first network slice selection information to be the S-NSSAI of the HPLMN, determining that the second network slice selection information is the S-NSSAI of the VPLMN; and determining the corresponding SMF entity according to the first network slice selection information and the second network slice selection information, That is, according to the UE selecting the V-SMF entity in the S-NSSAI of the VPLMN, selecting the H-SMF entity according to the S-NSSAI of the UE in the HPLMN to complete the establishment of the session, the specific session establishment process and the method of S204 to S214 in FIG. The steps are the same, and are not described here for brevity.
- the indication information may also be used to indicate that the second network slice selection information is S-NSSAI of the VPLMN or S-NSSAI of the HPLMN.
- the AMF entity may determine, according to the indication information, that the first network slice selection information is an S-NSSAI of the HPLMN or an S-NSSAI corresponding to the VPLMN.
- the method for session establishment may be performed by using the first network slice selection information and the second network selection information of the AMF entity sent by the UE, and the indication information, that is, the S-NSSAI, S-NSSAI, and the VPLMN corresponding to the VPLMN.
- the indication information that is, the S-NSSAI, S-NSSAI, and the VPLMN corresponding to the VPLMN.
- Indicates the S-NSSAI information accurately determines the V-SMF entity and the H-SMF entity, and further completes the establishment of the session to prevent the AMF entity from determining the S-NSSAI corresponding to the UE during the PDU session establishment process.
- FIG. 8 is another method for establishing a session provided by an embodiment of the present application. As shown in FIG. 8, the method may include the following steps:
- the UE sends a first message to the AMF entity.
- the UE When the session is established, the UE needs to send a first message to the AMF entity, where the first message includes the first information, the network slice selection information (ie, the first network slice selection information), and the indication information.
- the first message includes the first information, the network slice selection information (ie, the first network slice selection information), and the indication information.
- the first information includes information for requesting to establish a PDU session.
- the first information may also be a message, such as a PDU session establishment request message.
- the first network slice selection information is used by the AMF entity to select an SMF entity.
- the indication information is used to indicate that the first network slice selection information is the S-NSSAI of the UE in the VPLMN, or to indicate that the first network slice selection information is the S-NSSAI of the UE in the HPLMN.
- the AMF entity determines, according to the indication information, that the first network slice selection information is the S-NSSAI of the UE in the VPLMN, or determines that the first network slice selection information is the S-NSSAI of the UE in the HPLMN, and determines the first according to the first network slice selection information.
- the SMF entity determines the second network slice selection information according to the first network slice selection information and the correspondence relationship information of the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN; and selects the second SMF entity according to the second network slice selection information.
- the correspondence relationship between the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN in the embodiment of the present application may be a one-to-one correspondence between the S-NSSAI of the VPLMN defined by the roaming protocol and the S-NSSAI of the HPLMN.
- the information may also be one-to-many relationship information of the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN defined according to the roaming agreement.
- a one-to-one mapping relationship table of the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN is pre-stored in the AMF entity, when the first network slice
- the AMF entity may determine the S-NSSAI of the HPLMN as the second network slice selection information by using the mapping relationship table.
- the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN are one-to-many, for example, the S-NSSAI of one VPLMN corresponds to the S-NSSAI of multiple HPLMNs, then the S-NSSAI when the first network slice selection information is VPLMN
- the AMF entity may select an S-NSSAI of one HPLMN according to the priority order of the S-NSSAIs of the multiple HPLMNs corresponding to the S-NSSAI of the VPLMN to perform the establishment of the PDU session.
- the AMF entity may also select the S-NSSAI of the HPLMN corresponding to the S-NSSAI of the VPLMN according to the attributes of the session. For example, the S-NSSAI of the HPLMN that is consistent with the session type in the session attribute is selected according to the session type in the session attribute of the S-NSSAI of the VPLMN.
- the AMF entity After the first SMF entity and the second SMF entity are determined, the AMF entity further completes the establishment of the session, and sends a second message to the UE, where the second message includes the second information, and the second information includes the information that the PDU session establishment accepts.
- the UE receives the second message.
- the S-NSSAI and the S-NSSAI indicating the S-NSSAI bit UE in the VPLMN or the HPLMN are sent by the UE to the AMF entity, so that the AMF sends a message according to the UE, and the S-VP of the VPLMN.
- the correspondence relationship between the NSSAI and the S-NSSAI of the HPLMN accurately determines the V-SMF entity and the H-SMF entity, and further completes the establishment of the session.
- the first network slice selection information is an S-NSSAI corresponding to the first application.
- the first application is a third-party application installed in the UE, for example, QQ, facebook, and the like.
- the AMF entity determines the S-NSSAI corresponding to the VPLMN and the S-NSSAI corresponding to the HPLMN, selects the V-SMF entity according to the S-NSSAI of the VPLMN, and selects the H-SMF entity according to the S-NSSAI of the HPLMN.
- the specific session establishment process S304 to S314 is the same as the method/step of S204 to S214 in FIG. 6, and is not described here for brevity.
- the method before the UE sends the first message to the AMF entity, the method further includes:
- the UE determines network slice selection information, that is, first network slice selection information.
- the specific process may include: in the network slice selection policy of the public land mobile network VPLMN, if there is an S-NSSAI corresponding to the first application, the UE determines that the S-NSSAI is the first network slice selection information; or In the network slice selection policy of the land mobile network HPLMN, if there is an S-NSSAI corresponding to the first application, the terminal determines that the S-NSSAI is the first network slice selection information.
- the method of registering and session establishment is described above.
- the terminal and AMF provided by the embodiment of the present application are described below with reference to FIG. 9 to FIG. It should be noted that the terminal in this embodiment of the present application may be referred to as a UE.
- FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 9, the terminal may include a transmitting unit 410 and a receiving unit 420.
- the sending unit 410 sends a registration request message to the access and mobility management function AMF entity, where the registration request message includes the first parameter, which is used to Request a network slice selection policy.
- the first parameter may be an NSSP indication letter. interest.
- the AMF entity After receiving the registration request message sent by the terminal, the AMF entity obtains the network slice selection information according to the first parameter in the registration request message, and sends a registration acceptance message to the terminal, where the registration acceptance message includes network slice selection information, so that the terminal performs the
- the registration acceptance message includes network slice selection information, so that the terminal performs the
- the S-NSSAI of the VPLMN or the HPLMN where the terminal is located can be accurately selected according to the network slice selection policy, and the establishment of the PDU session is further completed.
- the terminal may further include a processing unit, configured to perform processing of related data.
- FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 10, the terminal may include a transmitting unit 510 and a receiving unit 520.
- the sending unit 510 is configured to send a first message to the access and mobility management function AMF entity, where the first message includes the first information, the first network slice selection information, and the second network slice selection information.
- the first information includes information requesting to establish a protocol data unit PDU session.
- the first information may be a message, such as a PDU session establishment request message.
- the first network slice selection information is used by the AMF entity to select a first session management control function SMF entity; the second network slice selection information is used by the AMF entity to select a second SMF entity.
- the first network slice selection information is a terminal (or UE) in the S-NSSAI of the VPLMN
- the second network slice selection information is a terminal (or UE) in the S-NSSAI of the HPLMN
- the AMF is based on the S-LSLMN.
- - NSSAI selects the V-SMF entity, the first SMF entity
- the AMF entity selects the H-SMF entity, ie the second SMF entity, according to the S-NSSAI of the HPLMN.
- the receiving unit 520 is configured to receive a second message sent by the AMF entity, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the terminal sends the terminal in the VPLMN to the AMF entity, and the two S-NSSAIs of the terminal in the HPLMN, so that the AMF can accurately determine the V-SMF entity and the H-SMF entity according to the two S-NSSAIs. Further complete the establishment of the PDU session.
- the first network slice selection information is the S-NSSAI corresponding to the first application in the VPLMN.
- the second network slice selection information is the S-NSSAI corresponding to the first application in the HPLMN.
- the first application is a third-party application installed on the terminal, such as QQ, facebook, and the like.
- the first message may further include indication information, where the first network slice selection information is used to indicate an S-NSSAI of the HPLMN, or the indication information is used to indicate the first network slice selection.
- the information is S-NSSAI of VPLMN.
- the first message includes two S-NSSAIs
- the indication information indicates that one of the S-NSSAIs is the S-NSSAI of the terminal in the VPLMN or the S-NSSAI of the terminal in the HPLMN.
- the AMF entity determines, according to the indication information in the first message, that one of the two S-NSSAIs is the terminal in the VPLMN stalking S-NSSAI, and the other is the terminal in the HPLMN S-NSSAI, and according to The S-NSSAI of the VPLMN selects the V-SMF entity, and selects the H-SMF entity according to the S-NSSAI of the HPLMN to further complete the establishment of the PDU session.
- the terminal in the embodiment of the present application may further include a processing unit for related processing of data.
- the terminal provided in FIG. 10 may be the same terminal as the terminal provided in FIG. 9, that is, the sending unit 510 and the receiving unit 520 in FIG. 10 may be the sending in FIG. Unit 410 and receiving unit 420.
- FIG. 11 is a terminal provided by an embodiment of the present application. As shown in FIG. 11, the terminal may include a transmitting unit 610 and a receiving unit 620.
- the sending unit 610 is configured to send a first message to the access and mobile network management function AMF entity, where the first message includes the first information, the network slice selection information, and the indication information.
- the first information includes information requesting to establish a protocol data unit PDU session.
- the first information may also be a message, for example, the first information is a PDU session establishment request message.
- the network slice selection information is used by the AMF entity to select a session management control function SMF entity.
- the indication information is used to indicate that the network slice selection information is a single network slice selection assistance information S-NSSAI that accesses the public land mobile network VPLMN, or is used to indicate that the network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- the AMF entity determines whether the network slice selection information is the S-NSSAI of the terminal in the VPLMN or the S-NSSAI of the terminal in the HPLMN according to the indication information, and further determines the S-NSSAI of the terminal in the HPLMN according to the network slice selection information, or the terminal is in the The S-NSSAI of the V-PLMN, and the selection of the V-SMF entity and the H-SMF entity.
- the receiving unit 620 receives the second message sent by the AMF entity, and the second message includes the second information, where the second information includes information that the PDU session establishment accepts to complete the establishment of the PDU session.
- the network slice selection information is the S-NSSAI corresponding to the first application.
- the first application is a third-party application installed on the terminal, such as QQ, facebook, email, and the like.
- the terminal may further include a processing unit 630, where the processing unit 630 further needs to determine network slice selection information before the terminal sends the first message to the AMF entity.
- the processing unit 630 performs a process of: in the network slice selection policy of the VPLMN, if there is an S-NSSAI corresponding to the first application, determining that the S-NSSAI is the network slice selection information; or, the network slice selection policy in the HPLMN If the S-NSSAI corresponding to the first application exists, the S-NSSAI is determined to be network slice selection information.
- the terminal provided in FIG. 11 may be a terminal provided in FIG. 9
- the sending unit 610 and the receiving unit 620 in FIG. 11 are the sending unit 410 and the receiving unit 420 in FIG. 9 .
- FIG. 12 is a schematic structural diagram of an access and mobility management function entity according to an embodiment of the present disclosure.
- the access and mobility management function AMF entity may include a receiving unit 710, a processing unit 720, and a transmitting unit 730.
- the receiving unit 710 is configured to receive a registration request message sent by the terminal.
- the registration request message includes a first parameter, and the first parameter is used to request a network slice selection policy NSSP.
- the first parameter may be that the NSSP indication information is required.
- the processing unit 720 is configured to acquire a network slice selection policy according to the registration request message.
- the AMF entity may acquire the NSSP of the terminal from the PCF entity.
- the sending unit 730 of the AMF entity sends a UE context setup request message to the PCF entity, where the message includes the first parameter and the identifier information of the UE, such as the IMSI; the PCF entity sends a UE context setup response message to the AMF entity according to the request of the AMF.
- the message includes the NSSP of the UE and the identification information of the UE.
- the sending unit 730 is configured to send a registration accept message to the terminal.
- the registration accept message includes a network slice selection policy, so that the ANF entity can accurately determine the S-NSSAI of the VPLMN or the HPLMN according to the NSSP of the terminal, and further complete the establishment of the PDU session.
- FIG. 13 is a schematic structural diagram of an access and mobility management function entity according to an embodiment of the present disclosure.
- the access and mobility management function entity AMF may include a receiving unit 810, a processing unit 820, and a transmitting unit 830.
- the receiving unit 810 is configured to receive the first message sent by the terminal.
- the first message includes first information, first network slice selection information, and second network slice selection information.
- the first information includes information requesting to establish a protocol data unit PDU session.
- the first information may be a message, for example, the first information is a PDU session establishment request message.
- the processing unit 820 is configured to determine a first session management control function SMF entity according to the first network slice selection information, and determine a second SMF entity according to the second network slice selection information.
- the first network slice selection information is the S-NSSAI of the terminal in the VPLMN
- the second network slice selection information is the S-NSSAI of the terminal in the HPLMN
- the AMF selects the V-SMF entity according to the S-NSSAI of the VPLMN, ie, the first SMF.
- the entity, the AMF entity selects the H-SMF entity, ie the second SMF entity, according to the S-NSSAI of the HPLMN.
- the sending unit 830 is configured to send a second message to the terminal.
- the second message includes second information, and the second information includes information accepted by the PDU session establishment to complete establishment of the PDU session.
- the first network slice selection information is the S-NSSAI corresponding to the first application in the VPLMN; and the second network slice selection information is the S-NSSAI corresponding to the first application in the HPLMN.
- the first application is a third-party application installed on the terminal, such as a mailbox, QQ, facebook, and the like.
- the first message may further include indication information, configured to indicate that the first network slice selection information is an S-NSSAI of the HPLMN; or the first network slice selection information is a S-VPLMN S- NSSAI.
- the AMF entity determines, according to the indication information in the first message, that the first network slice selection information and the second network slice selection information included in the first message are respectively the S-NSSAI or the terminal of the terminal in the VPLMN. S-NSSAI at HPLMN.
- the AMF entity determines, according to the indication information, that the first network slice selection information is the S-NSSAI of the VPLMN, determining that the second network slice selection information is the S-NSSAI of the HPLMN, to select the H-SMF entity according to the S-NSSAI of the HPLMN according to the VPLMN.
- the S-NSSAI selects the V-SMF entity to further complete the session establishment.
- the AMF entity provided in FIG. 13 may be the same as the AMF entity provided in FIG. 12, where the receiving unit 810, the processing unit 820, and the sending unit 830 in FIG. 13 may be the receiving unit 710 in FIG. Processing unit 720 and transmitting unit 730.
- FIG. 14 is a schematic structural diagram of another access and mobility management function entity according to an embodiment of the present disclosure.
- the access and mobility management function AMF entity may include a receiving unit 910, a processing unit 920, and a transmitting unit 930.
- the receiving unit 910 is configured to receive the first message sent by the terminal.
- the first message includes first information, first network slice selection information, and indication information.
- the first information includes information requesting to establish a protocol data unit PDU session.
- the first information may be a message, for example, the first information is a PDU session establishment request message.
- the indication information is used to indicate that the first network slice selection information is a single network slice selection assistance information S-NSSAI of the terminal accessing the public land mobile network VPLMN, or is used to indicate that the network slice selection information is the terminal of the home public land mobile network HPLMN. -NSSAI.
- the processing unit 920 is configured to determine, according to the indication information, that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI of the terminal in the VPLMN, or determine that the first network slice selection information is the S-NSSAI of the terminal in the HPLMN; Determining, according to the first network slice selection information, a first session management control function SMF entity; determining second network slice selection information according to the correspondence information between the first network slice selection information and the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN, And selecting the second SMF entity according to the second network slice selection information.
- the sending unit 930 is configured to send a second message to the terminal.
- the second message includes second information, and the second information includes information accepted by the PDU session establishment to complete establishment of the PDU session.
- the first network slice selection information is an S-NSSAI corresponding to the first application.
- the first application is a third-party application installed on the terminal, for example, QQ, facebook, email, and the like.
- the AMF entity provided in FIG. 14 may be an apparatus with the AMF entity provided in FIG. 13, where the receiving unit 910, the processing unit 920, and the sending unit 930 in FIG. 14 may be the receiving unit 810 in FIG. Processing unit 820 and transmitting unit 830.
- the terminal provided in FIGS. 9 to 11 may further include a storage unit
- the AMF entity provided in FIGS. 12 to 14 may further include a storage unit for storing related instructions and data.
- the AMF entity receives the first message sent by the terminal, that is, after receiving the PDU session establishment request information, according to information included in the first message, for example, FIG.
- the information included in the first message in FIG. 11 or FIG. 13 and FIG. 14 selects the V-SMF entity and the H-SMF entity to complete the establishment of the PDU session, and the process is the same as the method/step of S204 to S214 in FIG. Description, no longer repeat here.
- FIG. 15 provides a terminal according to an embodiment of the present application.
- the terminal may include a transmitter 1010 and a receiver 1020.
- the sender 1010 is configured to send a registration request message to the access and mobility management function AMF entity, where the registration request message includes a first parameter, and the first parameter is used to request a network slice selection policy.
- the receiver 1020 is configured to receive a registration accept message sent by the AMF entity, where the registration accept message includes a network slice selection policy, so that the terminal can accurately determine the NSSP according to the current VPLMN or the HPLMN NSSP during the PDU session establishment process.
- S-NSSAI when the terminal establishes a PDU session, the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the terminal may further include a processor and a memory.
- the processor is used to retrieve instructions from the memory for corresponding data processing.
- the memory is used to store the corresponding instructions and data.
- FIG. 16 provides a terminal according to an embodiment of the present application.
- the terminal may include a transmitter 1110 and a receiver 1120.
- the transmitter 1110 is configured to send, to the access and mobility management function AMF entity, a first message, where the first message includes first information, first network slice selection information, and second network slice selection information, where the first information includes request to establish protocol data.
- the information of the PDU session, the first network slice selection information is used by the AMF entity to select the first session management control function SMF entity, and the second network slice selection information is used by the AMF entity to select the second SMF entity.
- the receiver 1120 is configured to receive a second message sent by the AMF entity, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the S-NSSAI and complete the establishment of the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the first network slice selection information may be that the first application selects the auxiliary information S-NSSAI corresponding to the single network slice corresponding to the public land mobile network VPLMN; the second network slice selection information is The first application is at the S-NSSAI corresponding to the public land mobile network HPLMN.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI that accesses the public land mobile network VPLMN. Or, the indication information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- the AMF entity receives the first message, the first network slice selection information and the second network slice selection information are determined according to the indication information in the first message, and the establishment of the PDU session is further completed.
- the terminal provided by the embodiment of the present application may further include a processor and a memory.
- the memory is used to store corresponding instructions and data, in order to process the instructions for recalling the memory, and to process the corresponding processing of the data.
- FIG. 17 provides a terminal according to an embodiment of the present application.
- the terminal may include a transmitter 1210 and a receiver 1220.
- the transmitter 1210 is configured to send a first message to the access and mobility network management function AMF entity, where the first message includes first information, network slice selection information, and indication information, where the first information includes information requesting to establish a protocol data PDU session.
- the network slice selection information is used by the AMF entity to select a session management control function SMF entity, and the indication information is used to indicate that the network slice selection information is a single network slice selection auxiliary information S-NSSAI for the terminal to access the public land mobile network VPLMN, or for indicating
- the network slice selection information is for the terminal S-NSSAI at the home public land mobile network HPLMN.
- the receiver 1220 is configured to receive a second message sent by the AMF entity, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity in the process of establishing a PDU session, can accurately determine the S-NSSAI and complete the establishment of the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the network slice selection information is an S-NSSAI corresponding to the first application.
- the terminal further includes a processor 1230, configured to determine network slice selection information.
- the processor 1230 determines network slice selection information, including:
- the terminal determines that the S-NSSAI is the network slice selection information; or the network slice selection of the home public land mobile network HPLMN In the policy, if there is an S-NSSAI corresponding to the first application, the terminal determines that the S-NSSAI is the network slice selection information.
- the terminal provided by the embodiment of the present application may further include a processor and a memory.
- the memory is used to store corresponding instructions and data in order to process the instructions that retrieve the memory and process the data accordingly.
- FIG. 18 provides an access and mobility management function AMF entity according to an embodiment of the present application.
- the AMF entity may include a receiver 1310, a processor 1320, and a receiver 1330.
- the receiver 1310 is configured to receive a registration request message sent by the terminal, where the registration request message includes a first parameter, where the first parameter is used to request a network slice selection policy.
- the processor 1320 is configured to obtain a network slice selection policy according to the registration request message.
- the sender 1330 is configured to send a registration accept message to the terminal, where the registration accept message includes a network slice selection policy.
- the network segment selection policy of the network where the terminal is located is obtained by using the first parameter sent by the terminal to the AMF entity, so that when the PDU session is established, the corresponding S-NSSAI is accurately determined according to the network slice selection policy, thereby avoiding the terminal establishing the PDU session.
- the AMF entity cannot find the S-NSSAI corresponding to the network where the terminal is located, and cannot complete the establishment of the PDU session, and thus cannot communicate.
- the processor acquires a network slice selection policy according to the registration request message, including:
- the transmitter 1310 sends a first message to the policy control function PCF entity, where the first message includes a first parameter, the receiver 1330 receives a second message sent by the PCF entity, and the second message includes a network slice selection policy.
- the AMF provided by the embodiment of the present application may further include a memory.
- the memory is used to store corresponding instructions and data in order to process the instructions that retrieve the memory and process the data accordingly.
- FIG. 19 provides an access and mobility management function AMF entity according to an embodiment of the present application.
- the AMF entity can include a receiver 1410, a processor 1420, and a receiver 1430.
- the receiver 1410 is configured to receive a first message sent by the terminal, where the first message includes first information, first network slice selection information, and second network slice selection information, where the first information includes information requesting to establish a protocol data PDU session.
- the processor 1420 is configured to determine a first session management control function SMF entity according to the first network slice selection information, and determine a second SMF entity according to the second network slice selection information;
- the transmitter 1430 is configured to send a second message to the terminal, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the terminal can accurately determine the corresponding S-NSSAI according to the current VPLMN or the NSSP of the HPLMN, so as to prevent the AMF entity from finding the S- corresponding to the network where the terminal is located when the terminal establishes the PDU session. NSSAI, unable to complete the establishment of a PDU session, and thus unable to communicate.
- the first network slice selection information is a single network slice selection auxiliary information S-NSSAI corresponding to the first application accessing the public land mobile network VPLMN; the second network slice selection information is One is applied to the S-NSSAI corresponding to the HPLMN belonging to the public land mobile network.
- the first message further includes indication information, where the indication information is used to indicate that the first network slice selection information is a single network slice selection assistance information S-NSSAI that accesses the public land mobile network VPLMN; or, the indication The information is used to indicate that the first network slice selection information is the S-NSSAI of the home public land mobile network HPLMN.
- the AMF entity provided by the embodiment of the present application may further include a memory.
- the memory is used to store corresponding instructions and data in order to process the instructions that retrieve the memory and process the data accordingly.
- FIG. 20 provides an access and mobility management function AMF entity according to an embodiment of the present application.
- the AMF entity can include a receiver 1510, a processor 1520, and a transmitter 1530.
- the receiver 1510 is configured to receive a first message sent by the terminal, where the first message includes first information, first network slice selection information, and indication information, where the first information includes information for requesting to establish a protocol data PDU session; the indication information is used for Instructing the first network slice selection information to be a single network slice selection assistance for the terminal to access the public land mobile network VPLMN.
- the information S-NSSAI, or the S-NSSAI used to indicate that the network slice selection information is the terminal at the home public land mobile network HPLMN.
- the processor 1520 is configured to determine, according to the indication information, that the first network slice selection information is a single network slice selection auxiliary information S-NSSAI of the terminal in the VPLMN, or determine that the first network slice selection information is the S-NSSAI of the terminal in the HPLMN; a network slice selection information, selecting a first session management control function SMF entity; determining second network slice selection information according to the correspondence information between the first network slice selection information and the S-NSSAI of the VPLMN and the S-NSSAI of the HPLMN, and according to The second network slice selection information selects the second SMF entity.
- the transmitter 1530 is configured to send a second message to the terminal, where the second message includes the second information, where the second information includes information that the PDU session establishment accepts.
- the AMF entity can accurately determine the used S-NSSAI according to the first network slice selection information and the indication information, and complete the establishment of the PDU session.
- the first network slice selection information is an S-NSSAI corresponding to the first application.
- the AMF entity provided by the embodiment of the present application may further include a processor and a memory.
- the memory is used to store corresponding instructions and data in order to process the instructions that retrieve the memory and process the data accordingly.
- Embodiments of the present application provide a computer program product comprising instructions that, when executed on a computer, perform the methods/steps of FIGS. 5-8 above.
- the embodiment of the present application provides a computer readable storage medium for storing instructions, when the instructions are executed on a computer, performing the methods/steps in FIG. 5 to FIG. 8 above.
- the present invention may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- 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.
- the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
- the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable medium to another computer readable medium, for example, the computer instructions can be wired from a website site, computer, server or data center (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
- the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
- the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state hard disk) or the like.
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Abstract
Description
Claims (45)
- 一种会话建立方法,其特征在于,所述方法包括:终端向接入与移动管理功能AMF实体发送第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据单元PDU会话的信息,所述第一网络切片选择信息用于所述AMF实体选择第一会话管理控制功能SMF实体,所述第二网络切片选择信息用于所述AMF实体选择第二SMF实体;所述终端接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所述第二信息包含PDU会话建立接受的信息。
- 根据权利要求1所述的方法,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求1所述的方法,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者所述指示信息用于指示所述第一网络切片选择信息为归属公共陆地移动网HPLMN的S-NSSAI。
- 一种会话建立的方法,其特征在于,所述方法包括:终端向接入与移动网络管理功能AMF实体发送第一消息,所述第一消息包含第一信息、网络切片选择信息和指示信息,所述第一信息包含请求建立协议数据单元PDU会话的信息,所述网络切片选择信息用于所述AMF实体选择会话管理控制功能SMF实体,所述指示信息用于指示所述网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;所述终端接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所述第二信息包括PDU会话建立接受的信息。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:所述网络切片选择信息为第一应用对应的S-NSSAI。
- 根据权利要求4或5所述的方法,其特征在于,在所述终端向接入与移动管理功能AMF实体发送第一消息之前,所述方法还包括:所述终端确定所述网络切片选择信息。
- 根据权利要求6所述的方法,其特征在于,所述终端确定所述网络切片选择信息,包括:在访问公共陆地移动网VPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息;或者,在归属公共陆地移动网HPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息。
- 一种注册方法,其特征在于,所述方法包括:终端向接入与移动管理功能AMF实体发送注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;所述终端接收所述AMF实体发送的注册接受消息,所述注册接受消息中包括网络切片选择策略。
- 一种会话建立的方法,其特征在于,所述方法包括:接入与移动管理功能AMF实体接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据单元PDU会话的信息;所述AMF实体根据所述第一网络切片选择信息确定第一会话管理控制功能SMF实体,以及根据所述第二网络切片选择信息确定第二SMF实体;所述AMF实体向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息包含PDU会话建立接受的信息。
- 根据权利要求9所述的方法,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求9所述的方法,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者,所述指示信息用于指示所述第一网络切片选择信息为所归属公共陆地移动网HPLMN的S-NSSAI。
- 一种会话建立方法,其特征在于,所述方法包括:接入与移动管理功能AMF实体接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切片选择信息和指示信息,所述第一信息包含请求建立协议数据单元PDU会话的信息;所述指示信息用于指示所述第一网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;所述AMF根据所述指示信息确定所述第一网络切片选择信息为所述终端在VPLMN的S-NSSAI,或确定所述第一网络切片选择信息为所述终端在HPLMN的S-NSSAI;根据所述第一网络切片选择信息,选择第一会话管理控制功能SMF实体;根据所述第一网络切片选择信息以及VPLMN的S-NSSAI和HPLMN的S-NSSAI的对应关系信息确定第二网络切片选择信息,并根据所述第二网络切片选择信息选择第二SMF实体;所述AMF实体向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息包括PDU会话建立接受的信息。
- 根据权利要求12所述的方法,其特征在于,所述方法包括:所述第一网络切片选择信息为第一应用对应的S-NSSAI。
- 一种注册的方法,其特征在于,所述方法包括:接入与移动管理功能AMF实体接收终端发送的注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;所述AMF根据所述注册请求消息获取网络切片选择策略;所述AMF向所述终端发送注册接受消息,所述注册接受消息中包括所述网络切片选择策略。
- 根据权利要求14所述的方法,其特征在于,所述AMF实体根据所述注册请求消息获取网络切片选择策略,包括:所述AMF实体向策略控制功能PCF实体发送第一消息,所述第一消息包括所述第一参数;所述AMF实体接收所述PCF实体发送的第二消息,所述第二消息中包括所述网络切片选择策略。
- 一种终端,其特征在于,所述终端包括:发送单元,用于向接入与移动管理功能AMF实体发送第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据单元PDU会话的信息,所述第一网络切片选择信息用于所述AMF实体选择第一会话管理控制功能SMF实体,所述第二网络切片选择信息用于所述AMF实体选择第二SMF实体;接收单元,用于接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所述第二信息包含PDU会话建立接受的信息。
- 根据权利要求16所述的终端,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求16所述的终端,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者,所述指示信息用于指示所述第一网络切片选择信息为归属公共陆地移动网HPLMN的S-NSSAI。
- 一种终端,其特征在于,所述终端包括:发送单元,用于向接入与移动网络管理功能AMF实体发送第一消息,所述第一消息包含第一信息、网络切片选择信息和指示信息,所述第一信息包含请求建立协议数据单元PDU会话的信息,所述网络切片选择信息用于所述AMF实体选择会话管理控制功能SMF实体,所述指示信息用于指示所述网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;接收单元,用于接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所 述第二信息包括PDU会话建立接受的信息。
- 根据权利要求19所述的终端,其特征在于,所述网络切片选择信息为第一应用对应的S-NSSAI。
- 根据权利要求19或20所述的终端,其特征在于,所述终端还包括处理单元,用于确定所述网络切片选择信息。
- 根据权利要求21所述的终端,其特征在于,所述处理单元确定所述网络切片选择信息,包括:在访问公共陆地移动网VPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息;或者,在归属公共陆地移动网HPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息。
- 一种终端,其特征在于,所述终端包括:发送单元,用于向接入与移动管理功能AMF实体发送注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;接收单元,用于接收所述AMF实体发送的注册接受消息,所述注册接受消息中包括网络切片选择策略。
- 一种接入与移动管理功能AMF实体,其特征在于,所述接入与移动管理功能实体包括:接收单元,用于接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据单元PDU会话的信息;处理单元,用于根据所述第一网络切片选择信息确定第一会话管理控制功能SMF实体,以及根据所述第二网络切片选择信息确定第二SMF实体;发送单元,用于向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息包含PDU会话建立接受的信息。
- 根据权利要求24所述的接入与移动管理功能实体,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求24或25所述的接入与移动管理功能实体,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者,所述指示信息用于指示所述第一网络切片选择信息为归属公共陆地移动网HPLMN的S-NSSAI。
- 一种接入与移动管理功能AMF实体,其特征在于,所述AMF实体包括:接收单元,用于接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切 片选择信息和指示信息,所述第一信息包含请求建立协议数据单元PDU会话的信息;所述指示信息用于指示所述第一网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;处理单元,用于根据所述指示信息确定所述第一网络切片选择信息为所述终端在VPLMN的S-NSSAI,或确定所述第一网络切片选择信息为所述终端在HPLMN的S-NSSAI;根据所述第一网络切片选择信息,选择第一会话管理控制功能SMF实体;根据所述第一网络切片选择信息以及VPLMN的S-NSSAI和HPLMN的S-NSSAI的对应关系信息确定第二网络切片选择信息,并根据所述第二网络切片选择信息选择第二SMF实体;发送单元,用于向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息包括PDU会话建立接受的信息。
- 根据权利要求27所述的AMF实体,其特征在于,所述第一网络切片选择信息为第一应用对应的S-NSSAI。
- 一种接入与移动管理功能AMF实体,其特征在于,所述AMF实体包括:接收单元,用于接收终端发送的注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;处理单元,用于根据所述注册请求消息获取网络切片选择策略;发送单元,用于向所述终端发送注册接受消息,所述注册接受消息中包括所述网络切片选择策略。
- 根据权利要求29所述的AMF实体,其特征在于,所述处理单元根据所述注册请求消息获取网络切片选择策略,包括:所述发送单元向策略控制功能PCF实体发送第一消息,所述第一消息包括所述第一参数;所述接收单元接收所述PCF实体发送的第二消息,所述第二消息中包括所述网络切片选择策略。
- 一种终端,其特征在于,所述终端包括:发送器,用于向接入与移动管理功能AMF实体发送第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据器PDU会话的信息,所述第一网络切片选择信息用于所述AMF实体选择第一会话管理控制功能SMF实体,所述第二网络切片选择信息用于所述AMF实体选择第二SMF实体;接收器,用于接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所述第二信息包含PDU会话建立接受的信息。
- 根据权利要求31所述的终端,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求31所述的终端,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者,所述指示信息用于指示所述第一网络切片选择信息为归属公共陆地移动网HPLMN的S-NSSAI。
- 一种终端,其特征在于,所述终端包括:发送器,用于向接入与移动网络管理功能AMF实体发送第一消息,所述第一消息包含第一信息、网络切片选择信息和指示信息,所述第一信息包含请求建立协议数据器PDU会话的信息,所述网络切片选择信息用于所述AMF实体选择会话管理控制功能SMF实体,所述指示信息用于指示所述网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;接收器,用于接收所述AMF实体发送的第二消息,所述第二消息包含第二信息,所述第二信息包括PDU会话建立接受的信息。
- 根据权利要求34所述的终端,其特征在于,所述网络切片选择信息为第一应用对应的S-NSSAI。
- 根据权利要求34或35所述的终端,其特征在于,所述终端还包括处理器,用于确定所述网络切片选择信息。
- 根据权利要求36所述的终端,其特征在于,所述处理器确定所述网络切片选择信息,包括:在访问公共陆地移动网VPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息;或者,在归属公共陆地移动网HPLMN的网络切片选择策略中,若存在第一应用对应的S-NSSAI,则所述终端确定所述S-NSSAI为所述网络切片选择信息。
- 一种终端,其特征在于,所述终端包括:发送器,用于向接入与移动管理功能AMF实体发送注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;接收器,用于接收所述AMF实体发送的注册接受消息,所述注册接受消息中包括网络切片选择策略。
- 一种接入与移动管理功能AMF实体,其特征在于,所述接入与移动管理功能实体包括:接收器,用于接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切片选择信息和第二网络切片选择信息,所述第一信息包含请求建立协议数据器PDU会话的信息;处理器,用于根据所述第一网络切片选择信息确定第一会话管理控制功能SMF实体,以及根据所述第二网络切片选择信息确定第二SMF实体;发送器,用于向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息 包含PDU会话建立接受的信息。
- 根据权利要求39所述的接入与移动管理功能实体,其特征在于,所述第一网络切片选择信息为第一应用在访问公共陆地移动网VPLMN对应的单一网络切片选择辅助信息S-NSSAI;所述第二网络切片选择信息为所述第一应用在归属公共陆地移动网HPLMN对应的S-NSSAI。
- 根据权利要求39或40所述的接入与移动管理功能实体,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一网络切片选择信息为访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI;或者,所述指示信息用于指示所述第一网络切片选择信息为归属公共陆地移动网HPLMN的S-NSSAI。
- 一种接入与移动管理功能AMF实体,其特征在于,所述AMF实体包括:接收器,用于接收终端发送的第一消息,所述第一消息包含第一信息、第一网络切片选择信息和指示信息,所述第一信息包含请求建立协议数据器PDU会话的信息;所述指示信息用于指示所述第一网络切片选择信息为所述终端在访问公共陆地移动网VPLMN的单一网络切片选择辅助信息S-NSSAI,或者所述指示信息用于指示所述网络切片选择信息为所述终端在归属公共陆地移动网HPLMN的S-NSSAI;处理器,用于根据所述指示信息确定所述第一网络切片选择信息为所述终端在VPLMN的S-NSSAI,或确定所述第一网络切片选择信息为所述终端在HPLMN的S-NSSAI;根据所述第一网络切片选择信息,选择第一会话管理控制功能SMF实体;根据所述第一网络切片选择信息以及VPLMN的S-NSSAI和HPLMN的S-NSSAI的对应关系信息确定第二网络切片选择信息,并根据所述第二网络切片选择信息选择第二SMF实体;发送器,用于向所述终端发送第二消息,所述第二消息包含第二信息,所述第二信息包括PDU会话建立接受的信息。
- 根据权利要求42所述的AMF实体,其特征在于,所述第一网络切片选择信息为第一应用对应的S-NSSAI。
- 一种接入与移动管理功能AMF实体,其特征在于,所述AMF实体包括:接收器,用于接收终端发送的注册请求消息,所述注册请求消息包括第一参数,所述第一参数用于请求网络切片选择策略;处理器,用于根据所述注册请求消息获取网络切片选择策略;发送器,用于向所述终端发送注册接受消息,所述注册接受消息中包括所述网络切片选择策略。
- 根据权利要求44所述的AMF实体,其特征在于,所述处理器根据所述注册请求消息获取网络切片选择策略,包括:所述发送器向策略控制功能PCF实体发送第一消息,所述第一消息包括所述第一参数;所述接收器接收所述PCF实体发送的第二消息,所述第二消息中包括所述网络切片选择策略。
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CN112910913B (zh) | 2022-07-12 |
US11523465B2 (en) | 2022-12-06 |
CN108323245B (zh) | 2021-02-12 |
CA3065624C (en) | 2022-07-26 |
US20190208573A1 (en) | 2019-07-04 |
AU2017419197A1 (en) | 2020-01-02 |
KR20200007923A (ko) | 2020-01-22 |
EP3796618A1 (en) | 2021-03-24 |
CN108323245A (zh) | 2018-07-24 |
AU2021209155A1 (en) | 2021-08-19 |
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