WO2018035694A1 - 一种选择网络切片的方法及装置 - Google Patents
一种选择网络切片的方法及装置 Download PDFInfo
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- WO2018035694A1 WO2018035694A1 PCT/CN2016/096289 CN2016096289W WO2018035694A1 WO 2018035694 A1 WO2018035694 A1 WO 2018035694A1 CN 2016096289 W CN2016096289 W CN 2016096289W WO 2018035694 A1 WO2018035694 A1 WO 2018035694A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/12—Mobility data transfer between location registers or mobility servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for selecting a network slice.
- the network slicing technology divides a physical network into multiple network slicing instances.
- Each network slicing instance performs customized tailoring of network functions and management of corresponding network functions according to the needs of the business scenario, and better meets consumption through customized network and management.
- the individualized needs of each service and enterprise enable multiple services to share a broadband network infrastructure while maintaining the relative independence of business implementation. Among them, personalized needs include coverage area, duration, capacity, speed, latency, reliability, security, and availability.
- Each network slice instance can be viewed as a core network architecture, and network slice instances can be applied to mobile broadband, multimedia, large-scale machine-like communications, and critical machine-like communications.
- the user equipment In the prior art, in the same public land mobile network (PLMN), the user equipment (User Equipment, UE) can access only one network slice instance, and can also access multiple network slice instances and use simultaneously. Different services provided by multiple network tile instances.
- UE User Equipment
- the service requested by the UE In the home routed roaming scenario, when the UE roams to visit the Public Land Mobile Network (VPLMN), the service requested by the UE needs to be owned by the VPLMN and the home public land mobile network (Home Public Land).
- the Mobile Network HPLMN provides that in the scenario of supporting network slicing technology, the service requested by the UE needs to be provided by two slice instances of VPLMN and HPLMN.
- the UE roaming scenario supporting the network splicing technology it is required to provide a network splicing selection method, so that two PLMNs can select a suitable network splicing instance to provide services for the UE, and ensure the user experience of the roaming UE in the network slicing technology scenario.
- the embodiment of the present invention provides a method and a device for selecting a network slice, which solves the problem that the UE requests the service that the UE requests in the roaming scenario, and the VPLMN and the HPLMN jointly select an appropriate network slice to serve the UE.
- an embodiment of the present invention provides a method for selecting a network slice, where the method includes:
- the first slice selection function (SSF) device of the VPLMN receives the first service request message sent by the UE, and the first SSF device acquires the roaming information of the user equipment UE according to the first service request message, and according to the The roaming information of the UE selects a first network slice instance for the UE in the VPLMN.
- SSF slice selection function
- the roaming information of the UE, after selecting the first network slice instance for the UE in the VPLMN further includes:
- the first SSF device Transmitting, by the first SSF device, a network slice selection request to a second SSF device of the HPLMN, where the first SSF device receives a slice selection response message sent by the second SSF device, where the network slice selection request is used for a request
- the second SSF device of the HPLMN selects a second network slice instance for the UE in the HPLMN, and the slice selection response message includes the second SSF device selecting the UE in the HPLMN Information of the second network slice instance, the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function, and the second SM Functional interaction establishes a session connection.
- the first SSF device selects a first network slice instance for the UE in the VPLMN
- the second SSF device selects a second network slice instance for the UE in the HPLMN
- the first network slice instance and the second Network slice instances collectively provide services to the UE.
- the method further includes: the first SSF device receiving the attach request of the UE, the first The SSF device subscribes to the database of the user in the HPLMN of the UE according to the International Mobile Subscriber Identification Number (IMSI) of the UE, and queries the subscription information of the UE, where the first SSF device is configured according to the Declaring the subscription information, and the information carried in the attach request, and the HPLMN ID or indicating that the UE is The indication information of the roaming user determines the mobility management MM function required by the UE, and the first SSF device sends an attach request message to the MM function.
- IMSI International Mobile Subscriber Identification Number
- the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and/or a home public land mobile network identification number HPLMN ID of the UE.
- the first SSF device determines, in the VPLMN, the slice type of the first network slice instance according to the roaming information of the UE. In a possible design, after receiving the first service request message, the first SSF device determines, in the VPLMN, a first network slice instance for the UE according to the roaming information of the UE, or according to the UE roaming Information determines, in the VPLMN, a first network slice instance for the UE, and a network function in the first network slice instance.
- the first network slice instance has a set correspondence relationship with the network function in the first network slice instance.
- the network function in the first network slice instance includes: Mobility Management (MM) function, and/or first Session Management (SM) function.
- MM Mobility Management
- SM Session Management
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: visiting a public land mobile network identity number VPLMN ID.
- the information of the second network slice instance includes: a slice type of the second network slice instance, and/or the second network slice instance ID, and/or the second network The identity of the second SM function of the slice instance.
- an embodiment of the present invention provides a method for selecting a network slice, where the method includes:
- the second SSF device of the HPLMN receives a network slice selection request, and after receiving the network slice selection request, the second SSF device selects a second network slice for the UE according to the information of the visited network of the UE in the HPLMN. For example, the second SSF device sends a slice selection should The message is that the slice selection response message includes information of the second network slice instance selected by the second SSF device for the UE in the HPLMN.
- the network slice selection request received by the second SSF device of the HPLMN is sent by a first SSF device in the VPLMN.
- the network slice selection request received by the second SSF device of the HPLMN is sent by the first SM function of the first network slice instance in the VPLMN.
- the second SSF device sends a slice selection response message to the first SSF device in the VPLMN.
- the second SSF device sends a slice selection response message to the first SM in the VPLMN.
- the second SSF device determines, in the HPLMN, a slice of the second network slice instance for the UE according to the information of the visited network of the user equipment UE. Types of.
- the second SSF device determines, in the HPLMN, a second network slice instance for the UE according to information of a visited network of the user equipment UE; or Determining, according to information of the visited network of the user equipment UE, a second network slice instance and a network function in the second network slice instance.
- the information of the visited network includes: a slice type of the first network slice instance, and/or a visited public land mobile network identity number VPLMN ID.
- the network function in the second network slice instance includes: a second session management SM function.
- the information of the second network slice instance includes: a slice type of the second network slice instance and/or the second network slice instance ID and/or the second network slice instance The identifier of the second SM function, wherein the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM in the second network slice instance a function of establishing a session connection with the second SM function.
- an embodiment of the present invention provides a method for selecting a network slice, where the method includes:
- the first SM function of the VPLMN receives the second service request message, and after receiving the second service request message, the first SM sends a network slice selection request to the second SSF device of the HPLMN, where the first SM receives the a slice selection response message sent by the second SSF device, where the second service request message is used to request the first service, and the first SM function is instructed to establish a session connection for the first service, where the network slice selection request is used
- the second SSF device indicating the HPLMN is a user equipment UE selecting a second network slice instance in the HPLMN, where the slice selection response message includes a second selected by the second SSF device in the HPLMN Two network slice instance information.
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: a VPLMN ID.
- the network slice selection request further includes: the first network slice instance ID and/or the identifier of the first SM function in the first network slice instance, where the first The network slice instance ID and/or the identifier of the first SM function in the first network slice instance is used to indicate that the second SM function in the second network slice instance is addressed to the first SM function, The first SM function interacts to establish a session connection.
- an embodiment of the present invention provides an apparatus for selecting a network slice instance, where the apparatus includes: a first receiving unit, configured to receive a first service request message sent by a UE, where the first processing unit is configured according to the first receiving The first service request message received by the unit acquires the roaming information of the user equipment UE, and selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE.
- the apparatus further includes a first sending unit, the first sending unit is configured to send a network slice selection request to the second SSF device of the HPLMN, and then the first receiving unit is further configured to receive the a slice selection response message sent by the second SSF device, where the network slice selection request is used to request the second SSF device of the HPLMN to select a second network slice instance in the HPLMN for the UE,
- the slice selection response message includes information of a second network slice instance selected by the second SSF device for the UE in the HPLMN,
- the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function, and establishes a session connection with the second SM function.
- the first receiving unit, the first processing unit, and the first sending unit belong to a first SSF device in the VPLMN, and the first SSF device selects a UE in a VPLMN.
- a network slice instance, the second SSF device selects a second network slice instance for the UE in the HPLMN, the first network slice instance and the second network slice instance jointly serving the UE.
- the first receiving unit before the first receiving unit receives the first service request message sent by the UE, the first receiving unit further includes:
- the first receiving unit receives the attach request of the UE, and the first processing unit queries the user subscription database in the HPLMN of the UE according to the international mobile subscriber identity code of the UE, and queries the subscription information of the UE. Determining, by the first processing unit, the mobility management MM function required by the UE, according to the subscription information, the information carried in the attach request, and the HPLMN ID or the indication information that the UE is a roaming user. The first sending unit sends an attach request message to the MM function.
- the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and/or a home public land mobile network identification number HPLMN ID of the UE.
- the first processing unit determines, in the VPLMN, a first network slice for the UE according to the roaming information of the UE.
- the slice type of the instance is the slice type of the instance.
- the first processing unit determines, in the VPLMN, a first network slice for the UE according to the roaming information of the UE. And determining, according to the roaming information of the UE, the first network slice instance and the network function in the first network slice instance for the UE in the VPLMN.
- the first network slice instance has a set correspondence relationship with the network function in the first network slice instance.
- the network functions in the first network slice instance include: mobility management MM functions, and/or first session management SM functions.
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: visiting a public land mobile network identity number VPLMN ID.
- the information of the second network slice instance includes: a slice type of the second network slice instance, and/or the second network slice instance ID, and/or the second network The identity of the second SM function of the slice instance.
- an embodiment of the present invention provides an apparatus for selecting a network slice, where the apparatus includes: a second receiving unit, configured to receive a network slice selection request, where the second receiving unit receives the network slice selection request, The second processing unit selects a second network slice instance for the UE according to the information of the visited network of the UE in the HPLMN, and then the second sending unit sends a slice selection response message, where the slice selection response message includes the Information of a second network slice instance selected by the second SSF device for the UE in the HPLMN.
- the second receiving unit, the second processing unit, and the second sending unit belong to a second SSF device of the HPLMN.
- the network slice selection request received by the second receiving unit is sent by the first SSF device in the VPLMN.
- the network slice selection request received by the second receiving unit is sent by the first SM function of the first network slice instance in the VPLMN.
- the second transmitting unit sends a slice selection response message to the first SSF device in the VPLMN.
- the second transmitting unit sends a slice selection response message to the first SM in the VPLMN.
- the second processing unit in the HPLMN according to the information of the visited network of the user equipment UE is The UE determines a cut type of the second network slice instance.
- the second processing unit determines, in the HPLMN, the UE according to the information of the visited network of the user equipment UE. a second network slice instance; or determining, in the VPLMN, the first network slice instance and the network function in the second network slice instance according to the UE's roaming information.
- the information of the visited network includes: a slice type of the first network slice instance, and/or a visited public land mobile network identity number VPLMN ID.
- the network function in the second network slice instance includes: a second session management SM function.
- the information of the second network slice instance includes: a slice type of the second network slice instance, and/or the second network slice instance ID and/or the second network slice An identifier of a second SM function of the instance, wherein the information of the second network slice instance is used to indicate that a first SM function in the first network slice instance is addressed to a second one of the second network slice instances
- the SM function interacts with the second SM function to establish a session connection.
- an embodiment of the present invention provides an apparatus for selecting a network slice instance, where the apparatus includes: a third receiving unit is configured to receive a second service request message, and the third receiving unit receives the second service request message. Afterwards, the third sending unit sends a network slice selection request to the second SSF device of the HPLMN, and then the third receiving unit receives the slice selection response message sent by the second SSF device, where the second service request message is used by And requesting the first service, and instructing the first SM function to establish a session connection for the first service, where the network slice selection request is used to indicate that the second SSF device of the HPLMN is a user equipment UE in the HPLMN And selecting a second network slice instance, where the slice selection response message includes information of a second network slice instance selected by the second SSF device in the HPLMN.
- the third receiving unit, the third processing unit, and the third sending unit belong to a first SM device of the VPLMN.
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: a VPLMN ID.
- the network slice selection request further includes: the first network slice instance ID and/or the identifier of the first SM function in the first network slice instance, where the first The network slice instance ID and/or the identifier of the first SM function in the first network slice instance is used to indicate that the second SM function in the second network slice instance is addressed to the first SM function, The first SM function interacts to establish a session connection.
- FIG. 1 is a schematic diagram of a roaming architecture of a home route according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of a method for selecting an instance of a network slice according to an embodiment of the present invention
- FIG. 3 is a schematic flowchart of a UE attaching according to an embodiment of the present disclosure
- FIG. 4 is a schematic flowchart diagram of another method for selecting a network slice instance according to an embodiment of the present disclosure
- FIG. 5 is a schematic flowchart diagram of another method for selecting a network slice instance according to an embodiment of the present disclosure
- FIG. 6 is a schematic flowchart diagram of another method for selecting a network slice instance according to an embodiment of the present disclosure
- FIG. 7 is a schematic flowchart diagram of another method for selecting a network slice instance according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of an apparatus for selecting a network slice instance according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of another apparatus for selecting a network slice instance according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another apparatus for selecting a network slice instance according to an embodiment of the present invention.
- the user equipment UE accesses an Evolved Packet Core (EPC) through an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) to roam the home route of the EPC.
- EPC Evolved Packet Core
- E-UTRAN Evolved Universal Terrestrial Radio Access Network
- the UE uses the serving gateway (S-GW) of the VPLMN to establish an S8 bearer between the S-GW network element of the VPLMN to the packet data gateway (PDN Gateway, P-GW) of the HPLMN, and the P8 of the HPLMN.
- PDN Gateway Packet Data gateway
- the user equipment UE involved in the present application may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices or other processing devices connected to the wireless modem, and various forms of user equipment (User Equipment, UE); Slice Selection Function (SSF) for network slice instance selection in HPLMN and VPLMN; Mobility Management (MM) function, indicating network slice instance in HPLMN and VPLMN The implemented function; the first session management (SM) function is used to establish a session connection between the network slice instance in the HPLMN and the network slice instance in the VPLMN.
- SSF Slice Selection Function
- MM Mobility Management
- SM first session management
- the devices mentioned above are collectively referred to as user equipments or UEs.
- An embodiment of the present invention provides a method for selecting a network slice instance. As shown in FIG. 2, the method includes the following process:
- the first SSF device of the VPLMN receives the first service request message.
- the first SSF device acquires roaming information of the user equipment UE according to the first service request message.
- the first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE.
- the method further includes: the first SSF device sending a network slice selection request to the second SSF device of the HPLMN, where the network slice selection request is used to request the location
- the second SSF device of the HPLMN selects a second network slice instance for the UE in the HPLMN; the first SSF device receives a slice selection response message sent by the second SSF device, the slice selection The response message includes information about a second network slice instance selected by the second SSF device for the UE in the HPLMN, where information of the second network slice instance is used to indicate that in the first network slice instance
- the first SM function is addressed to the second SM function, interacting with the second SM function to establish a session connection.
- the method further includes: the first SSF device forwarding a service request message to the MM function in the first network slice instance, where the MM function triggers the first network slice instance a first SM function to send a network slice selection request to a second SSF device in the HPLMN, the network slice selection request to request the second SSF device of the HPLMN to be the UE in the HPLMN Select a second network slice instance.
- the first SSF device selects a first network slice instance for the UE in the VPLMN
- the second SSF device selects a second network slice instance for the UE in the HPLMN
- the first network slice instance and the second Network slice instances collectively provide services to the UE.
- the first service request message sent by the first SSF device of the VPLMN to the UE may be a UE attach request carrying the request service type, used to request registration to the network and request the network to establish the service. Session connection.
- the attach request may be sent before the first SSF device of the VPLMN receives the first service request message sent by the UE, and the UE is attached to the initial attach process of the VPLMN, as shown in FIG. 3:
- Step 301 The UE sends an initial attach request message requesting registration to the network.
- Step 302 The first SSF device receives an initial attach request message forwarded by an access network (AN), and signs a database with the user in the HPLMN of the UE according to the International Mobile Subscriber Identity (IMSI) of the UE.
- IMSI International Mobile Subscriber Identity
- the subscription information of the UE completes UE verification.
- Step 303 The first SSF device determines, according to the subscription information, the information carried in the attach request, and the HPLMN ID or the UE as a roaming user, the mobility management MM function required by the UE.
- Step 304 The first SSF device sends an initial attach request message to the MM function.
- Step 305 The MM function selection authentication and authorization AU function performs an authentication and a slice authorization process.
- Step 306 The MM function sends an attach accept message to the SSF device, where the attach accept message carries a temporary identifier (Temporary ID) of the UE.
- Temporary ID a temporary identifier
- Step 307 The SSF device forwards an attach accept message to the UE by using the AN.
- the first service request message sent by the UE received by the first SSF device of the VPLMN may also be a session establishment request message, which is used to request the network to establish a session connection for the service requested by the UE.
- a first network slice instance is selected in the VPLMN
- a second network slice instance is selected in the HPLMN
- the first network slice instance and the second network slice instance jointly provide services for the UE, which is a VPLMN and
- the interaction between the functions of the HPLMN and the process of selecting and interacting with the first network slice instance and the second network slice instance are described in detail in the following four embodiments.
- Embodiment 1 When the VPLMN sends a network slice selection request directly to the second SSF device in the HPLMN through the first SSF device, the interaction process between the VPLMN and the HPLMN is as shown in FIG. 4:
- Step 401 The UE sends a first service request message to the AN node in the VPLMN, where the first service request message includes at least an identifier of the UE, a service type service type, or an Access Point Name (APN).
- the identifier of the UE may be a temporary identifier of the UE, or may be an IMSI of the UE.
- Step 402 The AN node forwards the first service request message to the MM function of the VPLMN based on the identifier of the UE.
- Step 403 The MM function forwards the first service request message to the first SSF device in the VPLMN, and instructs the VLPMN SSF device that the service requested by the UE is a home-routed type, where the MM function is based on the UE.
- the subscription data determines that the UE is a roaming user, and determines, according to the service type or the APN, that the service type requested by the UE is a home-routed type.
- Step 404 The first SSF device is in the VPLMN according to the roaming information of the UE.
- the UE selects a first network slice instance, where the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and/or a home public land mobile network identity number HPLMN ID of the UE; Determining, by the first SSF device, the first network slice instance for the UE in the VPLMN according to the roaming information of the UE, where the first SSF device determines, in the VPLMN, the first for the UE according to the roaming information of the UE.
- a slice type of the network slice instance or determining a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, or determining a first network for the UE in the VPLMN according to the roaming information of the UE
- Step 405 The first SSF device of the VPLMN sends a network slice selection request to the second SSF device of the HPLMN, where the network slice selection request carries the service type (or APN) requested by the UE, and the identifier of the UE, The slice type of the first network slice instance.
- the network slice selection request further carries a VPLMN ID, where the identifier of the UE is an IMSI of the UE.
- Step 406 The second SSF device of the HPLMN obtains the subscription information of the UE in the user subscription database.
- Step 407 The second SSF device of the HPLMN selects a second network slice instance for the UE according to the information of the visited network of the UE, where the information of the visited network includes a slice type of the first network slice instance, and/or a public access Land Mobile Network Identification Number VPLMN ID.
- the second SSF device selects a second network slice instance for the UE according to the information of the visited network of the UE, where the second SSF device determines the second network for the UE according to the information of the visited network of the UE.
- a network function in the second network slice instance where Two session management SM functions.
- Step 408 The HPLMN SSF device sends a slice selection response message to the VPLMN SSF device, where the slice selection response message includes information about a second network slice instance selected by the second SSF device for the UE in the HPLMN, where
- the information of the second network slice instance includes: a slice type of the second network slice instance and/or the second network slice instance ID and/or the An identifier of a second SM function of the second network slice instance, where the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second network slice instance
- the second SM function establishes a session connection with the second SM function, where the identifier of the second SM function may be an IP address of the second SM function.
- Step 409 The first SSF device of the VPLMN sends a second service request message to the first MM function of the VPLMN.
- the second service request message includes at least: an identifier of the UE, and a first network slice instance ID or a first network slice. a slice type of the instance, and information of the second network slice instance, wherein the information of the second network slice instance comprises: a slice type of the second network slice instance and/or a second network slice instance ID and/or a second network An identifier of the second SM function corresponding to the slice instance, where the identifier of the UE may be a temporary identifier of the UE.
- the second service request message further includes an HPLMN ID; the second service request message further includes a first SM function identifier of the first network slice instance.
- Step 410 The first MM function of the VPLMN sends a third service request message to the first SM function corresponding to the first network slice instance of the VPLMN.
- the third service request message includes at least: an identifier of the UE, and a second network slice.
- the slice type of the instance and/or the second network slice instance ID and/or the identifier of the second SM function corresponding to the second network slice instance, the identifier of the UE may be a temporary identifier of the UE.
- the third service request message further includes an HPLMN ID.
- Step 411 The first SM function of the VPLMN, the corresponding HPLMN is addressed according to the slice type of the second network slice instance of the HPLMN and/or the second network slice instance ID and/or the identifier of the second SM corresponding to the second network slice instance.
- the second SM function sends a session establishment request to the second SM function, and interacts with the second SM function to complete the session establishment process.
- the corresponding second SM function may be addressed according to the first SM function, and may also be based on a HPLMN ID and a slice type of a second network slice instance of the HPLMN, or a second network slice instance according to the HPLMN ID and the HPLMN.
- the ID information, or the corresponding second SM function is addressed according to the HPLMN ID and the second SM function identifier of the second network slice instance.
- Step 412 The first SM function of the VPLMN returns a service request response message to the first MM function of the VPLMN, and the first MM function of the VPLMN forwards the service to the UE by using the AN. Request response message.
- the network slice type of the network slice instance in the present invention refers to information that can identify or indicate the slice type of the network slice instance, such as a network slice type identifier.
- Embodiment 2 When the VPLMN sends a network slice selection request to the second SSF device in the HPLMN through the first SM, the interaction process between the VPLMN and the HPLMN is as shown in FIG. 5:
- Step 501 The UE sends a first service request message to an AN node in the VPLMN.
- the first service request message includes at least an identifier, a service type, or an APN of the UE, where the identifier of the UE may be a temporary identifier of the UE, or Is the IMSI of the UE.
- Step 502 The AN node forwards the first service request message to the MM function of the VPLMN based on the identifier of the UE.
- Step 503 The MM function forwards the first service request to the first SSF device in the VPLMN, and instructs the VLPMN SSF device that the service requested by the UE is a home-routed type, where the MM determines the UE according to the subscription data of the UE. It is a roaming user, and determines, according to the service type or APN, that the service type requested by the UE is a home-routed type.
- Step 504 The first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, where the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and And the HPLMN ID of the UE, where the first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, where the first SSF device is in accordance with the roaming information of the UE.
- the network function in the first network slice instance includes a mobility management MM function, and/or a first session management SM function.
- Step 505 The first SSF device of the VPLMN sends a second service request to the first MM function of the VPLMN, where the second service request message carries at least the service type (or APN) requested by the UE, and the identifier of the UE. And a slice type of the first network slice instance or the first network slice instance ID, where the identifier of the UE may be a UE Temporary logo.
- the second service request message further includes an HPLMN ID.
- the second service request message further includes a first SM function identifier of the first network slice instance.
- Step 506 The first MM function of the VPLMN sends a third service request message to the first SM function of the VPLMN, where the third service request message is used to request the first service, and indicates that the first SM function is the first
- the service establishes a session connection.
- the third service request message includes at least: a UE identifier, and an HPLMN ID, where the identifier of the UE may be a temporary identifier of the UE.
- the third service request message further includes: a first network slice instance ID, and/or a slice type of the first network slice instance.
- the first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, where the first SSF device is in the VPLMN according to the roaming information of the UE.
- the step 506 before the first MM function sends the third service request message to the first SM function, further includes: the first MM function is Determining, by the first SSF device, a slice type of the first network slice instance, determining a first network slice instance and a first SM function in the first network slice instance.
- Step 507 The first SM function of the VPLMN sends a network slice selection request to the second SSF device of the HPLMN, where the network slice selection request carries at least the slice type of the first network slice instance and the service type requested by the UE. Or APN), the identifier of the UE, where the identifier of the UE may be the IMSI of the UE; optionally, the network slice selection request further carries the VPLMN ID.
- Step 508 The second SSF device of the HPLMN obtains the subscription information of the UE in the user subscription database.
- Step 509 The second SSF device of the HPLMN selects a second network slice instance for the UE according to the information of the visited network of the UE, where the information of the visited network includes a slice type of the first network slice instance, and/or a VPLMN An ID, where the second SSF device selects a first network slice instance for the UE according to the information of the visited network of the UE, and includes determining, by the information of the visited network of the UE, the second network slice instance for the UE.
- Step 510 The HPLMN SSF device sends a slice selection response message to the first SM of the VPLMN, where the slice selection response message includes information about the second network slice instance selected by the second SSF device for the UE in the HPLMN.
- the information of the second network slice instance includes: a slice type of the second network slice instance and/or the second network slice instance ID and/or a second SM function of the second network slice instance And the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function in the second network slice instance, and the second The SM function interactively establishes a session connection, wherein the identifier of the second SM function may be an IP address of the second SM function.
- Step 511 The first SM function of the VPLMN, the corresponding HPLMN is addressed according to the slice type of the second network slice instance of the HPLMN and/or the second network slice instance ID and/or the identifier of the second SM corresponding to the second network slice instance.
- the second SM function sends a session establishment request to the second SM function, and interacts with the second SM function to complete the session establishment process.
- the first SM function addresses the corresponding second SM function, and may also be based on the HPLMN ID and the slice type of the second network slice instance of the HPLMN, or the second network slice instance ID information according to the HPLMN ID and the HPLMN. Or addressing the corresponding second SM function according to the HPLMN ID and the identity of the second SM function in the second network slice instance.
- Step 512 The first SM function of the VPLMN returns a service request response message to the first MM function of the VPLMN.
- the first MM function of the VPLMN forwards the service request response message to the UE by using the AN.
- Embodiment 3 When the VPLMN sends a network slice selection request to the second SSF device in the HPLMN through the first SM, another interaction process between the VPLMN and the HPLMN is as shown in FIG. 6:
- Step 601 The UE sends a first service request message to an AN node in the VPLMN.
- the first service request message includes at least an identifier, a service type, or an APN of the UE, where the identifier of the UE may be a temporary identifier of the UE, or Is the IMSI of the UE.
- Step 602 The AN node forwards the first service request message to the UE based on the identifier of the UE. MM function of VPLMN.
- Step 603 The MM function forwards the first service request message to the first SSF device in the VPLMN, and indicates that the service requested by the VLPMN SSF device is a home-routed type, where the MM determines according to the subscription data of the UE.
- the UE is a roaming user, and determines, according to the service type or the APN, that the service type requested by the UE is a home-routed type.
- Step 604 The first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, where the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and And the home public mobile network identification number HPLMN ID of the UE; wherein the first SSF device selects a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, including, Determining, by the first SSF device, a slice type of the first network slice instance for the UE in the VPLMN according to the roaming information of the UE, or selecting a first network slice instance for the UE in the VPLMN according to the roaming information of the UE, Or the roaming information of the UE selects, in the VPLMN, a first network slice instance for the UE, and a network function in the first network slice instance.
- the network function in the first network slice instance includes a mobility management MM function, and/
- Step 605 The first SSF device of the VPLMN sends a second service request message to the first MM function of the VPLMN, where the second service request message carries at least the service type (or APN) requested by the UE, and the identifier of the UE. And a slice type of the first network slice instance or the first network slice instance ID.
- the second service request message further includes an HPLMN ID; the second service request message further includes a first SM function identifier of the first network slice instance, and the identifier of the UE may be a temporary identifier of the UE.
- Step 606 The first MM function of the VPLMN sends a third service request message to the first SM function of the VPLMN, where the third service request message is used to request the first service, and indicates that the first SM function is the first A service establishes a session connection.
- the third service request message includes at least: an identifier of the UE, and an HPLMN ID, where the identifier of the UE may be a temporary identifier of the UE.
- the third service request message further includes: a first network slice instance ID, and/or a slice type of the first network slice instance.
- the first SSF device is roaming according to the UE.
- the method further includes: the first MM function, according to the slice type of the first network slice instance determined by the first SSF device Determining a first network slice instance and a first SM function in the first network slice instance.
- Step 607 The first SM function of the VPLMN sends a network slice selection request to the second SSF device of the HPLMN, where the network slice selection request carries the slice type of the first network slice instance, and the service type requested by the UE (or APN), the IMSI of the identifier of the UE, the identifier of the UE may be the IMSI of the UE; optionally, the network slice selection request further carries a VPLMN ID; optionally, the network slice selection request further carries An identifier of the first network slice instance ID and/or the first SM function in the first network slice instance, and an identifier of the user plane function in the first network slice instance, where the identifier of the first SM function may be The IP address of the first SM function, and the identifier of the user plane function in the first network slice instance may be an IP address of the user plane function.
- the identifier of the UE may be an IMSI of the UE.
- the network slice selection request further carries
- Step 608 The second SSF device of the HPLMN obtains the subscription information of the UE in the user subscription database.
- Step 609 The second SSF device of the HPLMN selects a second network slice instance for the UE according to the information of the visited network of the UE, where the information of the visited network includes a slice type of the first network slice instance, and/or a VPLMN An ID, where the second SSF device selects a first network slice instance for the UE according to the information of the visited network of the UE, and includes determining, by the information of the visited network of the UE, the second network slice instance for the UE. Determining a second network slice instance for the UE according to the information of the visited network of the UE, or determining a second network slice instance for the UE according to the information of the visited network of the UE, and the second network slice Network functionality in the instance.
- the network function in the second network slice instance includes a second session management SM function.
- Step 610 The second SSF device of the HPLMN sends the second SM function of the HPLMN And a fourth service request message, where the fourth service request message is used to request the first service, and instruct the second SM function to establish a session connection for the first service.
- the fourth service request message includes at least: an identifier of the UE, a VPLMN ID, and a first network slice instance ID, and/or an identifier of the first SM function in the first network slice instance, where the identifier of the UE may be Temporary identification of the UE.
- Step 611 The second SM function of the HPLMN completes the user plane establishment of the home network, where the message transmitted to the home network user plane function includes the identifier of the user plane function in the first network slice instance, optionally, and is transmitted to the home network.
- the message of the user plane function further includes the first network slice instance ID of the VPLMN or the identifier of the first SM function corresponding to the first network slice instance.
- Step 612 The second SM function of the HPLMN sends a first service response message to the second SSF device of the HPLMN, where the first service response message carries an identifier of the user plane function in the second network slice instance.
- Step 613 The HPLMN SSF device sends a slice selection response message to the first SM of the VPLMN, where the slice selection response message includes information about the second network slice instance selected by the second SSF device for the UE in the HPLMN.
- the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function in the second network slice instance.
- the information of the second network slice instance includes: an identifier of a user plane function in the second network slice instance.
- the identifier of the user plane function in the second network slice instance may be an IP address of the user plane function.
- the information about the second network slice instance further includes: a slice type of the second network slice instance and/or the second network slice instance ID and/or the second network slice instance second.
- the identifier of the SM function where the identifier of the second SM function may be an IP address of the second SM function.
- Step 614 The first SM function of the VPLMN triggers completion of the visited user plane establishment.
- the message transmitted to the home network user plane function includes the identifier of the user plane function in the second network slice instance.
- the message transmitted to the home network user plane function further includes the second network slice instance ID of the HPLMN or The identifier of the second SM function corresponding to the second network slice instance.
- Step 615 The first SM function of the VPLMN returns a second service request response message to the first MM function of the VPLMN, and the first MM function of the VPLMN forwards the message to the UE by using the AN. Business request response message.
- the method may further include:
- Step 606' the first SM function selection of the VPLMN triggers completion of the visited user plane establishment, wherein the message delivered to the user plane function includes the QoS requirement of the session connection to be established. If this step exists, step 614 updates the user plane for the first SM function of the VPLMN.
- Embodiment 4 When the VPLMN sends a network slice selection request to the second SSF device in the HPLMN through the first SM, another interaction process between the VPLMN and the HPLMN is as shown in FIG. 7:
- Steps 701-706 are the same as steps 601-606 above.
- Step 707 The first SM function of the VPLMN sends a network slice selection request to the second SSF device of the HPLMN, where the network slice selection request carries the slice type of the first network slice instance, and the service type requested by the UE (or APN), the IMSI of the identifier of the UE, the identifier of the UE may be the IMSI of the UE; optionally, the network slice selection request further carries a VPLMN ID; optionally, the network slice selection request further carries Determining a first network slice instance ID, and/or an identifier of a first SM function in the first network slice instance, the first network slice instance ID, and/or a first one of the first network slice instances
- the identifier of the SM function is used to indicate that the second SM function in the second network slice instance establishes a session connection with the first SM function according to the addressing to the first SM function, where the The identifier of an SM function may be an IP address of the first SM
- Step 708 The second SSF device of the HPLMN obtains the subscription information of the UE in the user subscription database.
- Step 709 The second SSF device of the HPLMN selects a second network slice instance for the UE according to the information of the visited network of the UE, where the information of the visited network includes a slice type of the first network slice instance, and/or a VPLMN ID.
- the second SSF device determines, by the second SSF device, the first network slice instance for the UE according to the information of the visited network of the UE, including: determining, according to the information of the visited network of the UE, the slice of the second network slice instance for the UE Type, or determine a second network slice instance for the UE according to information of the visited network of the UE, or according to the visited network of the UE.
- the information determines, for the UE, a second network slice instance, and a network function in the second network slice instance.
- the network function in the second network slice instance includes a second session management SM function.
- Step 710 The second SSF device of the HPLMN sends a fourth service request message to the second SM function of the HPLMN, where the fourth service request message is used to request the first service, and the second SM function is the first
- the service establishes a session connection.
- the fourth service request message includes at least an identifier of the UE, a VPLMN ID, and an identifier of the first network slice instance ID and/or the first SM function in the first network slice instance, where the identifier of the UE may be the UE Temporary logo.
- Step 711 The second SM function of the HPLMN addresses the first of the corresponding VPLMN according to the slice type of the first network slice instance of the VPLMN or the first network slice instance ID or the identifier of the first SM function corresponding to the first network slice instance.
- the SM function sends a session establishment request to the first SM function, and interacts with the first SM function to complete the session establishment process.
- the session establishment request includes a slice selection response message.
- the second SM function addresses the corresponding first SM function, and may also be based on the slice type of the first network slice instance of the VPLMN ID and the VPLMN, or the first network slice instance ID information according to the VPLMN ID and the VPLMN Or the identifier of the first SM corresponding to the VPLMN ID and the first network slice instance.
- Step 712 The first SM function of the VPLMN returns a service request response message to the first MM function of the VPLMN.
- the first MM function of the VPLMN forwards the service request response message to the UE by using the AN.
- an embodiment of the present invention provides an apparatus for selecting an instance of a network slice. As shown in FIG. 8, the apparatus includes:
- the first receiving unit 81 is configured to receive the first service request message sent by the UE, and then the first processing unit 82 obtains the roaming information of the user equipment UE according to the first service request message received by the first receiving unit, and according to the The roaming information of the UE selects a first network slice instance for the UE in the VPLMN.
- the device further includes a first sending unit 83, where the first sending unit 83 is configured to send a network slice selection request to the second SSF device of the HPLMN, and then the first receiving unit 81 is further configured to receive the a slice selection response message sent by the second SSF device, where the network is cut a slice selection request for requesting the second SSF device of the HPLMN to select a second network slice instance for the UE in the HPLMN, the slice selection response message including the second SSF device at the HPLMN
- the information of the second network slice instance selected by the UE where the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function, Establishing a session connection with the second SM function.
- the first receiving unit 81, the first processing unit 82, and the first sending unit 83 belong to a first SSF device in the VPLMN, and the first SSF device may be set to be separate.
- a device can also be set up in the same device along with other functions.
- the first SSF device selects a first network slice instance for the UE in the VPLMN
- the second SSF device selects a second network slice instance for the UE in the HPLMN, where the first network slice instance is common to the second network slice instance Serve the UE.
- the method further includes: the first receiving unit 82 receives an attach request of the UE, and the first processing unit 82 is configured according to The international mobile subscriber identity of the UE is subscribed to the database of the user in the HPLMN of the UE, and the subscription information of the UE is queried, and the first processing unit 82 carries the information according to the subscription information and the attachment request.
- the information, and the HPLMN ID or the indication information that the UE is a roaming user determine a mobility management MM function required by the UE, and the first sending unit sends an attach request message to the MM function.
- the roaming information of the UE includes: indication information indicating that the UE is a roaming user, and/or a home public land mobile network identification number HPLMN ID of the UE.
- the first processing unit 82 determines, in the VPLMN, the first network slice instance for the UE according to the roaming information of the UE. Slice type.
- the first processing unit 82 determines, in the VPLMN, a first network slice instance for the UE according to the roaming information of the UE.
- the first A processing unit 82 determines, in the VPLMN, the first network slice instance and the network function in the first network slice instance in the VPLMN according to the roaming information of the UE.
- the first network slice instance has a set correspondence relationship with the network function in the first network slice instance.
- the network function in the first network slice instance includes: a mobility management MM function, and/or a first session management SM function.
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: accessing a public land mobile network identity number VPLMN ID.
- the information about the second network slice instance includes: a slice type of the second network slice instance, and/or the second network slice instance ID, and/or the second network slice instance The identifier of the second SM function.
- An embodiment of the present invention provides a device for selecting a network slice.
- the device includes: a second receiving unit 91, configured to receive a network slice selection request, where the second receiving unit 91 receives the network slice.
- the second processing unit 92 selects a second network slice instance for the UE according to the information of the visited network of the UE in the HPLMN, and then the second sending unit 93 sends a slice selection response message, the slice selection The response message includes information of the second network slice instance selected by the second SSF device for the UE in the HPLMN.
- the second receiving unit 91, the second processing unit 92, and the second sending unit 93 belong to a second SSF device of the HPLMN.
- the network slice selection request received by the second receiving unit 91 is sent by the first SSF device in the VPLMN.
- the network slice selection request received by the second receiving unit 91 is sent by the first SM function of the first network slice instance in the VPLMN.
- the second sending unit 93 sends a slice selection response message to the first SSF device in the VPLMN.
- the second sending unit 93 sends a slice selection response message to the first SM in the VPLMN.
- the second processing unit 92 determines, in the HPLMN, the second network according to the information of the visited network of the user equipment UE.
- the slice type of the slice instance is the slice type of the slice instance.
- the second processing unit 92 determines, in the HPLMN, the second network according to the information of the visited network of the user equipment UE. Slice instance.
- the second processing unit 92 determines, in the HPLMN, the second network according to the information of the visited network of the user equipment UE. A slice instance, and network functions in the second network slice instance.
- the information of the visited network includes: a slice type of the first network slice instance, and/or a public land mobile network identity number VPLMN ID.
- the network function in the second network slice instance includes: a second session management SM function.
- the information about the second network slice instance includes: a slice type of the second network slice instance and/or the second network slice instance ID and/or a second SM of the second network slice instance.
- An identifier of the function where the information of the second network slice instance is used to indicate that the first SM function in the first network slice instance is addressed to the second SM function in the second network slice instance, The second SM function interacts to establish a session connection.
- An embodiment of the present invention provides an apparatus for selecting a network slice instance.
- the apparatus includes: a third receiving unit 101, configured to receive a second service request message, where the third receiving unit 101 receives the After the second service request message, the third sending unit 102 sends a network slice selection request to the second SSF device of the HPLMN, and then the third receiving unit 101 receives the slice selection response message sent by the second SSF device, where the The second service request message is used to request the first service, and the first SM function is configured to establish a session connection for the first service, where the network slice selection request is used to indicate that the second SSF device of the HPLMN is a user equipment UE in the said A second network slice instance is selected in the HPLMN, and the slice selection response message includes information of a second network slice instance selected by the second SSF device in the HPLMN.
- the third receiving unit 101 and the third sending unit 102 belong to the first SM function of the VPLMN, and the first SM function may be set as a single device, or may be combined with other functions. Set up in a device.
- the network slice selection request includes: a slice type of the first network slice instance.
- the network slice selection request further includes: a VPLMN ID.
- the first network slice selection request further includes: the first network slice instance ID and/or the identifier of the first SM function in the first network slice instance, where the first network slice An identifier of the instance ID and/or the first SM function in the first network slice instance is used to indicate that the second SM function in the second network slice instance is addressed to the first SM function, An SM function interacts to establish a session connection.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the computer readable memory is stored in the computer readable memory.
- the instructions in the production result include an article of manufacture of the instruction device that implements the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
Abstract
Description
Claims (28)
- 一种选择网络切片的方法,其特征在于,该方法包括:拜访公共陆地移动网络VPLMN的第一切片选择功能SSF设备接收第一业务请求消息;所述第一SSF设备根据所述第一业务请求消息获取用户设备UE的漫游信息;所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE选择第一网络切片实例。
- 如权利要求1所述的方法,其特征在于,所述UE的漫游信息包括:指示所述UE为漫游用户的指示信息,和/或所述UE的归属公共陆地移动网络身份识别号码HPLMN ID。
- 如权利要求1或2所述的方法,其特征在于,所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE选择第一网络切片实例,包括:所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例的切片类型。
- 如权利要求1或2所述的方法,其特征在于,所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE选择第一网络切片实例,包括:所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例;或者所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例、以及所述第一网络切片实例中的网络功能。
- 如权利要求4所述的方法,其特征在于,所述第一网络切片实例中的网络功能,包括:移动性管理MM功能,和/或第一会话管理SM功能。
- 如权利要求1、2或5中任一项所述的方法,其特征在于,所述第一SSF设备根据所述UE的漫游信息在所述VPLMN中为所述UE选择第一网络切片实例之后,还包括:所述第一SSF设备向归属公共陆地移动网络HPLMN的第二SSF设备发送网络切片选择请求,所述网络切片选择请求用于请求所述HPLMN的所述第二SSF设备为所述UE在所述HPLMN中选择第二网络切片实例;所述第一SSF设备接收所述第二SSF设备发送的切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息,其中,所述第二网络切片实例的信息用于指示所述第一网络切片实例中的第一SM功能寻址到所述第二SM功能,与所述第二SM功能交互建立会话连接。
- 如权利要求6所述的方法,其特征在于,所述网络切片选择请求包括所述第一网络切片实例的切片类型。
- 如权利要求6或7所述的方法,其特征在于,所述网络切片选择请求还包括拜访公共陆地移动网络身份识别号码VPLMN ID。
- 如权利要求6所述的方法,其特征在于,所述第二网络切片实例的信息,包括:所述第二网络切片实例的切片类型,和/或所述第二网络切片实例ID,和/或所述第二网络切片实例的第二SM功能的标识。
- 一种选择网络切片的方法,其特征在于,该方法包括:归属公共陆地移动网络HPLMN的第二切片选择功能SSF设备接收网络切片选择请求,所述网络切片选择请求携带用户设备UE的拜访地网络的信息;所述第二SSF设备接收所述网络切片选择请求后,在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE选择第二网络切片实例;所述第二SSF设备发送切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息。
- 如权利要求10所述的方法,其特征在于,所述拜访地网络的信息, 包括:第一网络切片实例的切片类型,和/或拜访公共陆地移动网络身份识别号码VPLMN ID。
- 如权利要求10或11所述的方法,其特征在于,所述第二SSF设备在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE选择第二网络切片实例,包括:所述第二SSF设备根据所述UE的漫游信息在所述HPLMN中为所述UE确定第二网络切片实例的切片类型。
- 如权利要求10或11所述的方法,其特征在于所述第二SSF设备在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE选择第二网络切片实例,包括:所述第二SSF设备在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE确定第二网络切片实例;或者所述第二SSF设备在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE确定第二网络切片实例、以及所述第二网络切片实例中的网络功能。
- 如权利要求13所述的方法,其特征在于,所述第二网络切片实例中的网络功能,包括:第二会话管理SM功能。
- 如权利要求10所述的方法,其特征在于,所述HPLMN的第二SSF设备接收网络切片选择请求,包括:所述HPLMN的所述第二SSF设备接收拜访公共陆地移动网络VPLMN的第一SSF设备发送的网络切片选择请求。
- 如权利要求10所述的方法,其特征在于,所述HPLMN的第二SSF设备接收网络切片选择请求,包括:所述HPLMN的所述第二SSF设备接收所述第一网络切片实例的第一SM功能发送的网络切片选择请求。
- 一种选择网络切片的方法,其特征在于,该方法包括:拜访公共陆地移动网络VPLMN的第一会话管理SM功能接收第二业务请求消息,所述第二业务请求消息用于请求第一业务,并指示第一SM功能为所述第一业务建立会话连接;所述第一SM功能向归属公共陆地移动网络HPLMN的第二切片选择功能SSF设备发送网络切片选择请求,所述网络切片选择请求用于指示所述第二SSF设备为用户设备UE在所述HPLMN中选择第二网络切片实例;所述第一SM功能接收所述第二SSF设备发送的切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息。
- 如权利要求17所述的方法,其特征在于,所述网络切片选择请求包括:所述第一网络切片实例ID,和/或所述第一网络切片实例中的第一SM功能的标识,其中,所述第一网络切片实例ID和/或所述第一网络切片实例中的第一SM功能的标识用于指示所述第二网络切片实例中的第二SM功能寻址到所述第一SM功能,与所述第一SM功能交互建立会话连接。
- 一种选择网络切片的装置,其特征在于,该装置包括:第一接收单元,用于接收第一业务请求消息;第一处理单元,用于根据所述第一业务请求消息获取用户设备UE的漫游信息,并根据所述UE的漫游信息在拜访公共陆地移动网络VPLMN中为所述UE选择第一网络切片实例。
- 如权利要求19所述的装置,其特征在于,所述第一处理单元具体用于:根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例的切片类型。
- 如权利要求19所述的装置,其特征在于,所述第一处理单元具体用于:根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例;或根据所述UE的漫游信息在所述VPLMN中为所述UE确定第一网络切片实例、以及所述第一网络切片实例中的网络功能。
- 如权利要求19所述的装置,其特征在于,所述装置还包括:第一发送单元,用于向归属公共陆地移动网络HPLMN的第二切片选择功能SSF设备发送网络切片选择请求,所述网络切片选择请求用于请求所述HPLMN的所述第二SSF设备为所述UE在所述HPLMN中选择第二网络切片;所述第一接收单元,还用于接收所述第二SSF设备发送的切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息,其中,所述第二网络切片实例的信息用于指示所述第一网络切片实例中的第一会话管理SM功能寻址到所述第二SM功能,与所述第二SM功能交互建立会话连接。
- 一种选择网络切片的装置,其特征在于,该方法包括:第二接收单元,用于接收网络切片选择请求,所述网络切片选择请求携带用户设备UE的拜访地网络的信息;第二处理单元,用于所述第二接收单元接收所述网络切片选择请求后,在归属公共陆地移动网络HPLMN中根据所述UE的拜访地网络的信息为所述UE选择第二网络切片实例;第二发送单元,用于发送切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息。
- 如权利要求23所述的装置,其特征在于,所述第二处理模块具体用于:所述第二接收单元在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE确定第二网络切片实例的切片类型。
- 如权利要求23所述的装置,其特征在于,所述第二处理模块具体用于:所述第二接收单元在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE确定第二网络切片实例;或在所述HPLMN中根据所述UE的拜访地网络的信息为所述UE确定第二网络切片实例、以及所述第二网络切片实例中的网络功能。
- 如权利要求23所述的装置,其特征在于,所述第二接收模块具体用于:接收拜访公共陆地移动网络VPLMN的第一切片选择功能SSF设备发送的网络切片选择请求。
- 如权利要求23所述的装置,其特征在于,所述第二接收模块具体还用于:接收所述第一网络切片实例的第一会话管理SM功能发送的网络切片选择请求。
- 一种选择网络切片实例的装置,其特征在于,该装置包括:第三接收单元,用于接收第二业务请求消息,所述第二业务请求消息用于请求第一业务,并指示第一会话管理SM功能为所述第一业务建立会话连接;第三发送单元,用于向归属公共陆地移动网络HPLMN的第二切片选择功能SSF设备发送网络切片选择请求,所述网络切片选择请求用于指示所述第二SSF设备为用户设备UE在所述HPLMN中选择第二网络切片实例;所述第三接收单元,还用于接收所述第二SSF设备发送的切片选择应答消息,所述切片选择应答消息中包括所述第二网络切片实例的信息。
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