WO2022089163A1 - 一种管理网络切片数据的方法和装置 - Google Patents

一种管理网络切片数据的方法和装置 Download PDF

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Publication number
WO2022089163A1
WO2022089163A1 PCT/CN2021/122574 CN2021122574W WO2022089163A1 WO 2022089163 A1 WO2022089163 A1 WO 2022089163A1 CN 2021122574 W CN2021122574 W CN 2021122574W WO 2022089163 A1 WO2022089163 A1 WO 2022089163A1
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udm
slice
udr
identification information
nssai
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PCT/CN2021/122574
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English (en)
French (fr)
Inventor
朱建国
童玮
张勇
段宝平
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华为技术有限公司
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Publication of WO2022089163A1 publication Critical patent/WO2022089163A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0893Assignment of logical groups to network elements

Definitions

  • the present application relates to the field of communications, and in particular, to a method and apparatus for managing network slice data.
  • 5G fifth generation
  • the network will be abstracted as "network slice", and a network slice meets the connection communication service requirements of a certain type or use case.
  • a 5G system can consist of a large number of network slices that meet different connectivity capabilities.
  • a network slice instance is a real running logical network created by the network management system, which can meet certain network characteristics or service requirements.
  • a network management system may create one or more network slice instances and manage them at the same time, including performance monitoring, fault management, modification, etc. during the operation of network slice instances.
  • a complete network slice instance can provide complete end-to-end network services.
  • the Unified Data Management (UDM) and the Unified Data Repository (UDR) are deployed in slices for isolation, requiring each UDM or UDR to be isolated.
  • Mandatory number segment management so that users need to change cards and numbers when migrating across slices, and as slice instances are used in more and more application scenarios, the number of UDM or UDR number segments gradually increases, and management tends to complex.
  • the embodiments of the present application provide a method for managing network slice data, which realizes the flexibility of unified data management/storage entity UDM/UDR deployment, enables the unified data management/storage entity UDM/UDR to be arranged according to different slice isolation requirements, and can Centralized co-deployment, or down-deployed into slices, to meet the requirements of low latency and physical isolation.
  • a first aspect provides a method for managing network slice data, the method comprising: a target access management function entity receiving a relocation message sent by an initial access management function entity AMF, where the relocation message includes a slice unified data management entity UDM The identification information and the network slice selection assistance information NSSAI allowed by the user; the target access management function entity performs authentication and registration service operations according to the relocation message.
  • the method further includes: the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • the UDM identifier of the home slice of the user subscription information is obtained through the relocation message received by the target access management function entity, so that the target access management function entity can obtain the UDM identifier of the home slice of the user subscription information according to the user subscription information.
  • the UDM identifier of the home slice avoids UDM service discovery when completing the registration process, which is beneficial to support the unified routing management of data, flexibly plan and deploy slices, avoid number segment management, save resource overhead, improve registration efficiency, and achieve low latency and physical isolation requirements.
  • a method for managing network slice data includes: an initial access management function entity AMF sends a relocation message to a target access management function entity, where the relocation message includes a slice unified data management entity UDM Identification information and user-allowed network slice selection assistance information NSSAI, the relocation message is used to instruct the target access management function entity T-AMF to select assistance according to the identification information of the slice unified data management entity UDM and the user-allowed network slice selection assistance Information NSSAI completes the registration process.
  • the method for managing network slice data transmits the UDM identifier of the home slice of the user subscription information to the T-AMF through the relocation message sent by the initial access management function entity AMF to the target access management function entity, It enables the target access management function entity to avoid UDM service discovery when completing the registration process according to the UDM identifier of the home slice of the user subscription information, which is conducive to supporting unified routing management of data, flexibly planning and deploying slices, free of number segment management, and saving Resource overhead, improve registration efficiency, and meet the requirements of low latency and physical isolation.
  • the method further includes:
  • the initial access management function entity AMF sends a first obtain user subscription data message to the common unified data management/storage entity UDM/UDR, where the first obtain user subscription data message is used to report to the common unified data management/storage entity UDM/UDR
  • the initial access management function entity AMF receives the first response message sent by the public unified data management/storage entity UDM/UDR, the first A response message includes the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM.
  • the method further includes: the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • the UDM/UDR can be arranged according to different slice isolation requirements to support
  • the rich scenarios of data slicing can be deployed together in a centralized manner, or can be deployed in a slicing manner to meet the requirements of low latency and physical isolation and ensure data security.
  • a method for managing network slice data comprising: a public unified data management/storage entity UDM/UDR receives a first obtain user subscription data message sent by an initial access management function entity AMF, the first Obtain the network slice selection auxiliary information NSSAI and the identification information of the slice unified data management entity UDM for requesting the user subscription from the public unified data management/storage entity UDM/UDR by the user subscription data message; the public unified data management/storage entity UDM/UDR Send a first response message to the initial access management function entity AMF, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM.
  • the UDM/UDR can be arranged according to different slice isolation requirements to support
  • the rich scenarios of data slicing can be deployed in a centralized manner to meet the requirements of low latency and physical isolation and ensure data security.
  • the method further includes: the common unified data The management/storage entity UDM/UDR sends a second obtain user subscription data message to the slice unified data management/storage entity UDM/UDR, where the second obtain user subscription data message is used to request the slice unified data management/storage entity UDM/UDR for the The network slice selection auxiliary information NSSAI subscribed by the user; the public unified data management/storage entity UDM/UDR receives the second response message sent by the slice unified data management/storage entity UDM/UDR, and the second response message includes the user subscribed Network slice selection auxiliary information NSSAI.
  • the method further includes: the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • the method for managing network slice data can centrally and jointly deploy the unified data management/storage entity UDM/UDR, or can be deployed in the slice, so that the unified data management/storage entity UDM/UDR can be deployed according to different slices Isolation requires orchestration to achieve deployment and management flexibility, thereby meeting the requirements for low latency and physical isolation of data operations.
  • an apparatus for managing network slice data comprising:
  • the receiving unit is configured to receive a relocation message sent by the initial access management function entity AMF, where the relocation message includes the identification information of the slice unified data management entity UDM and the user-allowed network slice selection assistance information NSSAI.
  • the processing unit is used for performing authentication and registration service operations according to the relocation message.
  • the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • an apparatus for managing network slice data comprising:
  • the sending unit is configured to send a relocation message to the target access management function entity, where the relocation message includes the identification information of the slice unified data management entity UDM and the network slice selection assistance information NSSAI permitted by the user,
  • the relocation message is used to instruct the target access management function entity to perform authentication and registration service operations.
  • the sending unit is further configured to send a first obtain user subscription data message to the public unified data management/storage entity UDM/UDR, where the first obtain user subscription data message is used to send the first obtain user subscription data message to the public unified data management/storage entity UDM.
  • a receiving unit configured to receive a first response message sent by the public unified data management/storage entity UDM/UDR, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the slice unified data management entity Identification information of the UDM.
  • the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • an apparatus for managing network slice data comprising:
  • a receiving unit the receiving unit is configured to receive a first obtain user subscription data message sent by the initial access management function entity AMF, where the first obtain user subscription data message is used to request a user subscription from the public unified data management/storage entity UDM/UDR
  • a sending unit the sending unit is configured to send a first response message to the initial access management function entity AMF, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the identification information of the unified slice data management entity UDM.
  • the sending unit is further configured to send a second obtain user subscription data message to the slice unified data management/storage entity UDM/UDR, where the second obtain user subscription data message is used to send the slice unified data management/storage entity
  • the UDM/UDR requests the network slice selection auxiliary information NSSAI subscribed by the user;
  • the receiving unit is further configured to receive a second response message sent by the slice unified data management/storage entity UDM/UDR, where the second response message includes the network slice selection assistance information NSSAI subscribed by the user.
  • the identification information of the slice unified data management entity UDM includes address information of the slice unified data management entity UDM.
  • an apparatus for managing network slice data in a seventh aspect, is provided, and the structure of the apparatus for managing network slice data includes a processor.
  • the processor is configured to support the apparatus for managing network slice data to perform the functions in the first aspect or the second aspect and various implementation manners thereof.
  • the apparatus for managing network slice data may further include A transceiver for supporting the apparatus for managing network slice data to receive or transmit information.
  • the apparatus for managing network slice data may further include a memory, which is coupled to the processor and stores necessary program instructions and data in the apparatus for managing network slice data.
  • the apparatus for managing network slice data includes a memory and a processor, where the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so that the apparatus for managing network slice data executes the above-mentioned first A method of any of the aspects or the second aspect or the third aspect and various implementations thereof.
  • a computer-readable storage medium is provided, and a computer program is stored in the computer-readable storage medium.
  • the computer program is executed, it is used to execute any of the first aspect or the second aspect or the third aspect. methods in possible implementations.
  • FIG. 1 is a schematic diagram of a registration process of AMF redirection in the prior art.
  • FIG. 2 is a schematic flowchart of a method for managing network slice data provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of another method for managing network slice data provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another method for managing network slice data provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a registration process applied to AMF redirection according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of an apparatus for managing network slice data provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another apparatus for managing network slice data provided by an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of another apparatus for managing network slice data provided by an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems or network management systems that support network slicing, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), the future fifth generation (5th Generation, 5G) system or new radio (New Radio, NR) and so on.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • 5G fifth generation
  • New Radio New Radio
  • the terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or future evolved Public Land Mobile Networks (PLMN)
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a terminal device, etc. is not limited in this embodiment of the present application.
  • a network slice is a logical network that can provide certain network capabilities and have certain network characteristics.
  • a network slice is a concept of a logical network, which is implemented by a network slice instance.
  • a network slice instance includes several network function instances, as well as computing, storage, network and other resources required to form a deployed logical network.
  • network slicing is an on-demand networking method that provides operators with new services that can be adjusted according to changing user needs and quickly meet the needs of new applications.
  • the network slicing technology abstracts the 5G network physical infrastructure resources into multiple network slices according to the scenario requirements. Each network slice customizes and tailors network functions and arranges and manages corresponding network functions according to the needs of business scenarios and business models.
  • a network slice can be viewed as an instantiated 5G network.
  • Such a network structure allows operators to provide the network as a service to users, and can freely combine physical networks according to indicators such as rate, capacity, coverage, delay, reliability, security, and availability to meet the needs of different users. Require.
  • Network slicing is a concept that customizes different logical networks based on different service requirements on the physical or virtual network infrastructure.
  • Network slicing can be a complete end-to-end network including terminals, access networks, transmission networks, core networks, and application servers, which can provide complete telecommunication services and have certain network capabilities.
  • the network slice can also be any combination of the above-mentioned terminal, access network, transmission network, core network and application server.
  • a network slice may have one or more of the following characteristics: the access network may or may not be sliced.
  • the access network may be shared by multiple network slices. Among them, the characteristics of different network slices and the network functions that compose them may be different.
  • Network function It is a processing function in the network, which defines the functional behavior and interface.
  • the network function can be realized by dedicated hardware or in the form of virtual function on a general hardware platform. Therefore, from an implementation point of view, network functions can be divided into physical network functions and virtual network functions. From the perspective of use, network functions can be divided into dedicated network functions and shared network functions. Specifically, for multiple (sub) network slice instances, different network functions can be used independently, and this network function is called a dedicated network function; or, the same network function can also be shared, and this network function is called Shared network capabilities.
  • Radio Access Network Radio Access Network, whose main function is to control users to access the mobile communication network through wireless.
  • AMF Access Management Function
  • Access Management Function access management function, which can receive non-access stratum (Non-Access Stratum, NAS) signaling of terminal equipment and related signaling of access network equipment, and complete user registration process and session management (Session Management, SM) signaling forwarding and mobility management.
  • Non-Access Stratum Non-Access Stratum
  • SM Session Management
  • NSSF Network Slice Selection Function
  • NRF Network Repository Function
  • UDM Unified Data Management
  • Unified data management function which is the permanent storage location of user contract data, located in the home network of the user contract.
  • PLMN Public Land Mobile Network
  • PLMN Public Land Mobile Network
  • TAI Tracking Area Identity
  • the network slice identifier is the most important parameter in network slice technology.
  • a single network slice selection assistance information (Single Network Slice Selection Assistance Information, S-NSSAI) can uniquely identify a network slice, while the network slice selection assistance information (Network Slice Selection Assistance Information, NSSAI) is a set of S-NSSAI, identifying a group of networks slice.
  • NSSAI plays an important role in the process of slice selection. According to its storage location and function, NSSAI can be divided into the following types:
  • NSSAI pre-configured in the terminal device this NSSAI can also be generated by NSSF or AMF and delivered to the terminal device, mainly used to generate the Requested NSSAI used in initial registration.
  • SubscribedNSSAI the NSSAI subscribed by the user stored in the UDM or UDR.
  • Allowed NSSAI The NSSAI that the terminal device is allowed to access in the current registration area.
  • the network equipment terminal equipment sends the S-NSSAIs that refuse to access, that is, the NSSAI that refuses the access of the user equipment.
  • the terminal equipment can no longer access under the PLMN, and for the NSSAI not supported by the current registration area, the terminal equipment can no longer access before moving out of the registration area.
  • Requested NSSAI The terminal device sends the requested NSSAI to the AMF during the registration process according to the saved Configured NASSI, Allowed NSSAI, serving PLMN, and TAI location area, etc., which can be carried in the radio resources of the initial registration message In the Radio Resource Control (RRC) and NAS layer messages, it indicates the NSSAI that the terminal device requests to use in this registration.
  • RRC Radio Resource Control
  • GUAMI Globally Unique AMF Identifier
  • SUPI Network Slice Subnet Management Function: The slice subnet management entity, the unique permanent identity of the user.
  • FIG. 1 shows a schematic diagram of the registration process of AMF redirection in the prior art.
  • redirection When the initial AMF receives the registration request sent by the terminal device, and the initial AMF is not suitable to provide services for the terminal device, the AMF may need to redirect the registration request to another target AMF, and the target AMF completes the registration process .
  • the premise of redirection is that the initial AMF and the target AMF need to pre-register the capability on the NRF.
  • the terminal device sends a registration request message to the RAN, the message may carry the Requested NSSAI and GUAMI of the terminal device, and the Requested NSSAI of the terminal device includes the S-NSSAIs that the terminal device expects to register.
  • the RAN selects the initial AMF according to the GUAMI or the Requested NSSAI of the terminal device.
  • the RAN sends a registration request message to the initial AMF.
  • the initial AMF queries the NRF for the address of the UDM or UDR stored in the Subscribed NSSAI of the terminal device through the number segment of the terminal device.
  • the initial AMF sends a query message to the NRF, the query message carries the number segment information of the terminal device, and the NRF determines the UDM or UDR stored in the Subscribed NSSAI corresponding to the terminal device of the number segment according to the number segment information of the terminal device. address.
  • the NRF sends a response message to the initial AMF, where the response message carries the address of the UDM or UDR storing the Subscribed NSSAI of the terminal device.
  • the initial AMF sends a user subscription data acquisition message to the UDM or UDR, where the message is used to acquire the SubscribedNSSAI of the terminal device stored in the UDM or UDR.
  • the initial AMF sends a user subscription data acquisition message to the UDM, where the message carries the SUPI information of the terminal device.
  • the initial AMF requests the SubscribedNSSAI of the terminal device from the UDM by triggering the Nudm_SDM_Get service operation, and the UDM obtains the SubscribedNSSAI of the terminal device from the UDR by performing the Nudr_DM_Query operation through the user's SUPI information.
  • the UDM sends a response message to the initial AMF, where the response message carries the Subscribed S-NSSAIs information corresponding to the terminal device.
  • the UDM sends a GET message response message to the initial AMF by performing the Nudm_SDM_Get operation, and the response message carries the slice data Subscribed S-NSSAIs information corresponding to the terminal device.
  • the initial AMF sends a query message to the NSSF, and the message carries information such as Requested NSSAI, Subscribed S-NSSAI, SUPI's PLMN, TAI, etc.
  • the request query message is used to query the NSSF for the Allowed NSSAI and serving AMF information.
  • the NSSF processes the request message according to the received information, local configuration and other locally available information.
  • NSSF performs the following actions upon receiving the query message:
  • the NSSF checks which S-NSSAIs in the Requested NSSAIs are allowed to access according to the Subscribed S-NSSAIs. When all S-NSSAIs in the Requested NSSAI are not in Subscribed S-NSSAIs, NSSF will also consider using the default Subscribed S-NSSAIs.
  • the NSSF selects a network slice instance to serve for the terminal device.
  • NSSF may return the slice instance ID, or it may just return the NRF specific to each slice instance.
  • the NSSF determines the target AMF group serving the terminal device, or further determines the candidate AMFs according to the configuration or query NRF.
  • the NSSF determines the Allowed NSSAI according to the availability of slice instances in the tracking area where the current terminal device is located.
  • the NSSF sends a response message to the initial AMF, and the message carries the target AMF group, Allowed NSSAI, network slice instance, and NRF instance information.
  • the initial AMF determines that it is not in the AMF group according to the AMF group in the response message sent by the NSSF.
  • the initial AMF sends a query message to the NRF, where the query message is used to query the NRF for a list of candidate AMFs.
  • the NRF sends a response message to the initial AMF, and the response message returns a list of available AMFs.
  • the initial AMF selects one of the available AMFs as a target AMF (target AMF, T-AMF).
  • the initial AMF sends a registration request message of the terminal device to the target AMF.
  • the target AMF continues to perform the relevant steps of the registration process, that is, the target AMF continues to perform the above steps S103-S109, and finally completes the user registration.
  • the target AMF when the target AMF continues to perform the relevant steps of the terminal device registration process, the target AMF still needs to rely on the number segment to obtain the address information of the UDM or UDR storing the Subscribed NSSAI of the terminal device from the NRF.
  • FIG. 2 is a schematic flowchart of a method for managing network slice data provided by an embodiment of the present application.
  • the access management function entity AMF sends a user subscription data acquisition message to the public unified data management/storage entity UDM/UDR, where the user subscription data acquisition message is used to request the public unified data management/storage entity UDM/UDR for the network that the user subscribes to
  • the slice selection auxiliary information NSSAI and the identification information of the slice unified data management entity UDM are used to request the public unified data management/storage entity UDM/UDR for the network that the user subscribes to The slice selection auxiliary information NSSAI and the identification information of the slice unified data management entity UDM.
  • the user subscription data acquisition message includes user slice subnet management entity identification information, that is, SUPI information, and according to the SUPI information, the public UDM/UDR can determine the corresponding network slice selection assistance information NSSAI that stores the user subscription. Slice the identification information of the UDM, and obtain the subscribed network slice selection auxiliary information NSSAI of the user.
  • the identification information of the slice unified data management entity UDM is the identification information of the slice unified data management entity that stores the network slice selection assistance information subscribed by the user.
  • the public unified data management/storage entity UDM/UDR sends a response message to the access management function entity AMF, where the response message includes the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM.
  • the access management function entity AMF may be an initial access management function entity or a target access management function entity T-AMF, which is not limited in this application.
  • the access management function entity When the access management function entity is the initial access management function entity, it may represent the process of acquiring the network slice selection assistance information NSSAI subscribed by the user when the terminal device is initially registered.
  • the access management function entity AMF is the target access management function entity T-AMF, it can represent the process of acquiring the network slice selection assistance information NSSAI subscribed by the user when the terminal device is redirected and registered.
  • the identification information of the slice unified data management entity UDM may be address information of the slice unified data management entity UDM or other information, which is not limited in this application.
  • the common unified data management/storage entity UDM/UDR By deploying the common unified data management/storage entity UDM/UDR, when the access management function entity AMF requests the user-subscribed network slice selection auxiliary information NSSAI from the common unified data management/storage entity UDM/UDR, the common unified data management/storage entity The response message returned by the UDM/UDR carries the identification information of the slice unified data management entity UDM to which the user belongs, that is, the identification information of the common unified data management/storage entity UDM/UDR unified management of the slice unified data management entity UDM to which the user belongs. Unified routing and management of data enables more flexible planning of slice deployment.
  • FIG. 3 is a schematic flowchart of another method for managing network slice data provided by an embodiment of the present application.
  • the access management function entity AMF sends a first obtain user subscription data message to the common unified data management/storage entity UDM/UDR, where the first obtain user subscription data message is used to obtain from the public unified data management/storage entity UDM/UDR
  • the common unified data management/storage entity UDM/UDR sends a second obtain user subscription data message to the slice unified data management/storage entity UDM/UDR, where the second obtain user subscription data message is used to send the slice unified data management/storage entity
  • the UDM/UDR obtains the network slice selection assistance information NSSAI subscribed by the user.
  • the unified slice data management/storage entity UDM/UDR determines to store the network slice selection assistance information NSSAI subscribed by the user of the user.
  • the slice unified data management/storage entity UDM/UDR sends a second response message to the common unified data management/storage entity UDM/UDR, where the second response message includes the network slice selection assistance information NSSAI subscribed by the user.
  • the public unified data management/storage entity UDM/UDR sends a first response message to the access management function entity AMF, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the slice unified data management entity UDM identifier.
  • the access management function entity AMF sends a first obtain user subscription data message to the common unified data management/storage entity UDM/UDR, where the first obtain user subscription data message includes the SUPI information of the user, and the first obtain user subscription data message includes the user's SUPI information.
  • the subscription data message is used to obtain from the public unified data management/storage entity UDM/UDR the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM.
  • the public unified data management/storage entity UDM/UDR stores the identification information of the slice unified data management entity UDM.
  • the public unified data management/storage entity UDM/UDR determines the corresponding network slice for managing user subscription according to the SUPI information Select the unified data management entity UDM identification information of the auxiliary information NSSAI, and transfer the unified data management entity UDM identification information of the slice to the unified data management/storage entity UDM/UDR of the slice through the second obtain user subscription data message, and the unified data management of the slice/
  • the storage entity UDM/UDR obtains the network slice selection auxiliary information NSSAI subscribed by the user according to the identification information of the slice unified data management entity UDM, and returns it to the public unified data management/storage entity UDM/UDR through the second response message, which is finally managed by the public unified data.
  • the storage entity UDM/UDR transmits the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM to the access management function entity AMF through the first response message.
  • the identification information of the slice unified data management entity UDM may be address information or other information of the slice unified data management entity UDM, which is not limited in this application.
  • the existing interface is extended to realize the common unified
  • the information exchange between the data management/storage entity UDM/UDR and the slice unified data management/storage entity UDM/UDR, the identification information of the slice unified data management entity UDM stored in the common unified data management/storage entity UDM/UDR, can be realized Slice management of discrete users to avoid complex number segment management problems.
  • FIG. 4 is a schematic flowchart of another method for managing network slice data provided by an embodiment of the present application.
  • the first access management function entity AMF sends a relocation message to the second access management function entity AMF.
  • the relocation message includes the registration request information of the terminal device, the Allowed NSSAI, the network slice instance, the NRF instance, and the identification information of the slice unified data management UDM.
  • the second access management function entity AMF performs authentication according to the information sent by the first access management function entity AMF, and completes the user registration.
  • the address information of the slice unified data management/storage entity UDM/UDR can be used to directly locate the slice unified data management/storage entity that stores the network slice selection assistance information NSSAI subscribed to by the user UDM/UDR avoids the UDM service discovery process in the redirection registration process, which helps save resources and improve device performance.
  • FIG. 5 is a schematic diagram of a registration process applied to AMF redirection according to an embodiment of the present application.
  • the initial AMF needs to send the registration request of the terminal device to another target AMF, and the target AMF completes the registration process of the terminal device.
  • the following description will be given by taking the method for managing network slice data shown in FIG. 3 applied to the redirection process shown in FIG. 1 as an example.
  • the terminal device sends a registration request message to the RAN, and the message may carry the Requested NSSAI and GUAMI of the terminal device, wherein the Requested NSSAI of the terminal device includes the S-NSSAIs that the terminal device expects to register.
  • the RAN selects the initial AMF according to the GUAMI or the Requested NSSAI of the terminal device.
  • the RAN sends a registration request message of the terminal device to the initial AMF.
  • the initial AMF queries the NRF for the identification information of the public UDM/UDR through the number segment of the terminal device.
  • the initial AMF sends a query message to the NRF.
  • the query message carries the number segment information of the terminal device.
  • the NRF first needs to determine the public UDM/UDM/UDR that manages/stores the identification information of the slice UDM/UDR.
  • the identification information of the UDR that is, the identification information of the public UDM/UDR used to manage/store the slice UDM/UDR.
  • the initial AMF wants to obtain the Subscribed NSSAI corresponding to the terminal device of the segment, it needs to obtain the public UDM/UDR first. identification information.
  • the NRF sends a response message to the initial AMF, where the response message carries the identification information of the public UDM/UDR.
  • the initial AMF uses the identification information of the public UDM/UDR obtained from the NRF, the initial AMF sends an acquire user subscription data message to the locked public UDM/UDR according to the identification information of the public UDM/UDR, and the message is used to obtain the information stored in the sliced UDM
  • the SubscribedNSSAI of the terminal device in the /UDR and the identification information of the slice UDM/UDR is used to obtain the information stored in the sliced UDM.
  • the obtained public UDM/UDR determines the identification information of the sliced UDM according to the SUPI information carried in the obtaining user subscription data message, and sends the identification information to the slice identified by the identification information.
  • the UDM/UDR sends a Get User Subscription Data message, where the Get User Subscription Data message is used to acquire the SubscribedNSSAI of the terminal device stored in the slice UDM/UDR.
  • the sliced UDM/UDR returns the SubscribedNSSAI of the terminal device to the public UDM/UDR through a response message.
  • the public UDM/UDR returns the SubscribedNSSAI of the terminal device obtained from the slice UDM/UDR and the identification information of the slice UDM corresponding to managing the SubscribedNSSAI of the terminal device stored in the public UDM/UDR to the initial AMF.
  • the initial AMF sends a query message to the NSSF, and the message carries the Requested NSSAI, Subscribed S-NSSAI, SUPI's PLMN, TAI and other information, and the request query message is used to query the NSSF for the Allowed NSSAI and serving AMF information.
  • the NSSF after receiving the query request, the NSSF processes the request message according to the received information, local configuration and other locally available information.
  • NSSF performs the following actions upon receiving the query message:
  • the NSSF checks which S-NSSAIs in the Requested NSSAIs are allowed to access according to the Subscribed S-NSSAIs. When all S-NSSAIs in the Requested NSSAI are not in Subscribed S-NSSAIs, NSSF will also consider using the default Subscribed S-NSSAIs.
  • the NSSF selects a network slice instance to serve for the terminal device.
  • NSSF may return the slice instance ID, or it may just return the NRF specific to each slice instance.
  • the NSSF determines the target AMF group serving the terminal device, or further determines the candidate AMFs according to the configuration or query NRF.
  • the NSSF determines the Allowed NSSAI according to the availability of slice instances in the tracking area where the current terminal device is located.
  • the NSSF sends a response message to the initial AMF, and the message carries the target AMF group, Allowed NSSAI, network slice instance, and NRF instance information.
  • the initial AMF determines that it is not in the AMF group according to the AMF group in the response message sent by the NSSF.
  • the initial AMF sends a query message to the NRF, where the query message is used to query the NRF for a list of candidate AMFs.
  • the NRF sends a response message to the initial AMF, and the response message returns a list of available AMFs.
  • the initial AMF selects one from the list of available AMFs as the target T-AMF.
  • the initial AMF sends a registration request message of the terminal device to the target T-AMF.
  • the Requested NSSAI and GUAMI of the terminal device carried in the registration request message of the terminal device received by the initial AMF, the S-NSSAIs the terminal device expects to register, and the information obtained from the NSSF include: Allowed NSSAI, network slice instance, The NRF instance and the identification information of the slice UDM obtained from the public UDM/UDR are sent to the target T-AMF.
  • the target T-AMF locks the storage location of the Subscribed S-NSSAIs of the terminal device according to the received identification information of the sliced UDM, no longer performs the UDM discovery process, but only performs authentication and completes the user registration.
  • the address of the slice unified data management UDM can be managed and stored in a unified manner, and the identification information of the slice unified data management UDM can be forwarded through the initial AMF.
  • T-AMF To T-AMF.
  • the target T-AMF does not need to obtain the identification information of the slice UDM that manages the Subscribed NSSAI of the terminal device from the NRF by relying on the number field. That is, compared with the prior art, in the redirection process, the T-AMF does not need the service discovery process of the secondary slicing UDM, which avoids the secondary number segment query, improves the registration efficiency, and saves resources.
  • Embodiments of the present application further provide an apparatus for implementing any of the above methods.
  • an apparatus is provided, including units (or means) for implementing each step performed by the access management function entity AMF in any of the above methods.
  • another apparatus is also provided, which includes a unit (or means) for implementing each step performed by the common unified data management/storage entity UDM/UDR in any one of the above methods.
  • FIG. 6 is a schematic block diagram of an apparatus for managing network slice data provided by an embodiment of the present application.
  • the apparatus 600 may include a receiving unit 601 and a processing unit 602 .
  • the receiving unit is configured to receive a relocation message sent by the initial access management function entity AMF, where the relocation message includes the identification information of the slice unified data management entity UDM and the user-allowed network slice selection assistance information NSSAI.
  • the processing unit is configured to perform authentication and registration service operations according to the relocation message.
  • FIG. 7 is a schematic block diagram of an apparatus for managing network slice data provided by an embodiment of the present application.
  • the apparatus 700 may include a receiving unit 701 and a sending unit 702 .
  • the sending unit 701 is configured to send a relocation message to the target access management function entity T-AMF, where the relocation message includes the identification information of the slice unified data management entity UDM and the network slice selection assistance information NSSAI permitted by the user, the relocation message It is used to instruct the target access management function entity T-AMF to complete the registration process according to the identification information of the slice unified data management entity UDM and the network slice selection assistance information NSSAI allowed by the user.
  • the sending unit 701 is further configured to send a first obtain user subscription data message to the public unified data management/storage entity UDM/UDR, where the first obtain user subscription data message is used to send the message to the public unified data management/storage entity UDM/UDR.
  • the UDR requests the network slice selection auxiliary information NSSAI and the identification information of the slice unified data management entity UDM to be subscribed by the user;
  • the receiving unit 702 is configured to receive a first response message sent by the public unified data management/storage entity UDM/UDR, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the identifier of the slice unified data management entity UDM information;
  • the identification information of the slice unified data management entity UDM received by the receiving unit 701 and sent by the sending unit 702 includes address information of the slice unified data management entity UDM.
  • FIG. 8 is a schematic block diagram of an apparatus for managing network slice data provided by an embodiment of the present application.
  • the apparatus 800 may include a receiving unit 801 and a sending unit 802 .
  • the receiving unit 801 is configured to receive a first obtain user subscription data message sent by the access management function entity AMF, where the first obtain user subscription data message is used to request the public unified data management/storage entity UDM/UDR for network slice selection of user subscription Identification information of auxiliary information NSSAI and slice unified data management entity UDM;
  • the sending unit 802 is configured to send a first response message to the access management function entity AMF, where the first response message includes the network slice selection assistance information NSSAI subscribed by the user and the identification information of the slice unified data management entity UDM.
  • the sending unit 802 of the device is further configured to send the second obtained user to the slice unified data management/storage entity UDM/UDR.
  • a subscription data message where the second obtain user subscription data message is used to request the network slice selection assistance information NSSAI subscribed by the user to the slice unified data management/storage entity UDM/UDR;
  • the receiving unit 801 is further configured to receive a second response message sent by the unified slice data management/storage entity UDM/UDR, where the second response message includes the network slice selection assistance information NSSAI subscribed by the user.
  • the identification information of the slice unified data management entity UDM received by the receiving unit 801 and sent by the sending unit 802 includes address information of the slice unified data management entity UDM.
  • the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on the computer, the computer is made to execute the above-mentioned methods as shown in FIG. 2 to FIG. 5 to access the The various steps performed by the management functional entity AMF.
  • the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is made to execute the common unified method in the above-mentioned methods as shown in FIG. 2 to FIG. 5 .
  • the present application also provides a computer program product containing instructions, when the computer program product is run on a computer, the computer program product causes the computer to execute each step performed by the access management function entity AMF in the methods shown in FIG. 2 to FIG. 5 .
  • the present application also provides a computer program product comprising instructions, when the computer program product runs on a computer, the computer program product causes the computer to execute the public unified data management/storage entity UDM/UDR in the methods shown in FIGS. 2 to 5 . of the various steps.
  • An embodiment of the present application further provides a system for managing network slices, including a device corresponding to the first management function entity and a device corresponding to the second management function entity in the foregoing embodiments.
  • a processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components, may also be a system on chip (SoC), a central processor unit (CPU), or a network processor (network processor).
  • SoC system on chip
  • CPU central processor unit
  • network processor network processor
  • processor can also be a digital signal processing circuit (digital signal processor, DSP), can also be a microcontroller (micro controller unit, MCU), can also be a programmable logic device (programmable logic device, PLD) or other Integrated chip.
  • DSP digital signal processor
  • MCU microcontroller
  • PLD programmable logic device
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • Software modules can be located in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc. in the storage medium.
  • RAM random access memory
  • ROM read-only memory
  • the storage medium is located in the memory, and the processor reads the instructions in the memory, and completes the steps of the above method in combination with its hardware.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes no limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种管理网络切片数据的方法和装置,该方法包括:目标接入管理功能实体接收初始接入管理功能实体AMF发送的重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI;该目标接入管理功能实体根据该重定位消息进行鉴权和注册业务操作。本申请实施例提供的管理网络切片数据的方法和装置,使得目标接入管理功能实体根据该用户签约信息的归属切片的UDM标识在完成注册流程时,避免UDM服务发现,有利于支持数据的统一路由管理,能灵活规划部署切片,免号段管理,节省资源开销,提高注册效率,实现低时延和物理隔离的要求。

Description

一种管理网络切片数据的方法和装置
本申请要求于2020年10月30日提交中国国家知识产权局、申请号202011193296.5、申请名称为“一种管理网络切片数据的方法和装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,并且具体地,尤其涉及一种管理网络切片数据的方法和装置。
背景技术
随着移动通信的高速发展,数字化转型几乎涉及了所有传统行业。但是,传统蜂窝网络架构只能提供统一的网络服务,难以满足数字化转型浪潮带来的差异性极大的通信需求,包括功能性差异、性能差异。在第五代(5th Generation,5G)通信系统中,网络将被抽象为“网络切片”,一个网络切片满足某一类或一个用例的连接通信服务需求。5G系统可以由满足不同连接能力的大量网络切片组成。
网络切片实例是由网管系统创建的一个真实运行的逻辑网络,能够满足一定网络特性或服务需求。一个网管系统可能创建一个或多个网络切片实例并同时对它们进行管理,包括在网络切片实例运行过程中的性能监视、故障管理、修改等。一个完整的网络切片实例是能够提供完整的端到端的网络服务的。在现有技术中,为了满足切片的隔离性,将统一数据管理(Unified Data Management,UDM)和统一数据存储库(Unified Data Repository,UDR)部署在切片内进行隔离,要求每个UDM或UDR都强制区分号段管理,使得用户在进行跨切片迁移时需要换卡换号,且随着切片实例在越来越多的应用场景下,UDM或UDR的号段数量逐渐增大,管理也趋于复杂。为了使用户可不换卡不换号在切片间进行迁移和避免号段管理,亟需提出一种方案以提升网络部署的灵活性和终端用户体验的友好性。
发明内容
本申请实施例提供一种管理网络切片数据的方法,实现了统一数据管理/存储实体UDM/UDR部署的灵活性,可以使统一数据管理/存储实体UDM/UDR根据不同切片隔离要求进行编排,可集中共同部署,也可以下沉部署到切片内,实现低时延和物理隔离的要求。
第一方面,提供了一种管理网络切片数据的方法,该方法包括:目标接入管理功能实体接收初始接入管理功能实体AMF发送的重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI;该目标接入管理功能实体根据该重定位消息进行鉴权和注册业务操作。
结合第一方面,在一些可能的实现方式中,该方法还包括:该切片统一数据管理实体 UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
本申请实施例提供的管理网络切片数据的方法,通过目标接入管理功能实体接收的重定位消息,获得用户签约信息的归属切片的UDM标识,使得目标接入管理功能实体根据该用户签约信息的归属切片的UDM标识在完成注册流程时,避免UDM服务发现,有利于支持数据的统一路由管理,能灵活规划部署切片,免号段管理,节省资源开销,提高注册效率,实现低时延和物理隔离的要求。
第二方面,提供了一种管理网络切片数据的方法,该方法包括:初始接入管理功能实体AMF向目标接入管理功能实体发送重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI,该重定位消息用于指示该目标接入管理功能实体T-AMF根据该切片统一数据管理实体UDM的标识信息和该用户允许的网络切片选择辅助信息NSSAI完成注册流程。
本申请实施例提供的管理网络切片数据的方法,通过初始接入管理功能实体AMF向目标接入管理功能实体发送的重定位消息,将用户签约信息的归属切片的UDM标识传递给T-AMF,使得目标接入管理功能实体根据该用户签约信息的归属切片的UDM标识在完成注册流程时,避免UDM服务发现,有利于支持数据的统一路由管理,能灵活规划部署切片,免号段管理,节省资源开销,提高注册效率,实现低时延和物理隔离的要求。
结合第二方面,在一些可能的实现方式中,该方法还包括:
该初始接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,该第一获取用户签约数据消息用于向该公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;该初始接入管理功能实体AMF接收该公共统一数据管理/存储实体UDM/UDR发送的第一响应消息,该第一响应消息包括该用户签约的网络切片选择辅助信息NSSAI和该切片统一数据管理实体UDM的标识信息。
结合第二方面,在一些可能的实现方式中,该方法还包括:该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
本申请实施例提供的管理网络切片数据的方法,通过部署公共统一数据管理/存储实体UDM/UDR,可以在5G网络多样化的需求下,使得UDM/UDR可以根据不同切片隔离要求进行编排以支持数据切片的丰富场景,可以集中共同部署,也可以下沉部署到切片内,实现低时延和物理隔离的要求,保证数据的安全性。
第三方面,提供了一种管理网络切片数据的方法,该方法包括:公共统一数据管理/存储实体UDM/UDR接收初始接入管理功能实体AMF发送的第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;该公共统一数据管理/存储实体UDM/UDR向该初始接入管理功能实体AMF发送第一响应消息,该第一响应消息包括用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
本申请实施例提供的管理网络切片数据的方法,通过部署公共统一数据管理/存储实体UDM/UDR,可以在5G网络多样化的需求下,使得UDM/UDR可以根据不同切片隔离要求进行编排以支持数据切片的丰富场景,可以集中共同部署,实现低时延和物理隔离的 要求,保证数据的安全性。
结合第三方面,在一些可能的实现方式中,在该公共统一数据管理/存储实体UDM/UDR向该初始接入管理功能实体AMF发送第一响应消息之前,该方法还包括:该公共统一数据管理/存储实体UDM/UDR向切片统一数据管理/存储实体UDM/UDR发送第二获取用户签约数据消息,该第二获取用户签约数据消息用于向切片统一数据管理/存储实体UDM/UDR请求该用户签约的网络切片选择辅助信息NSSAI;该公共统一数据管理/存储实体UDM/UDR接收该切片统一数据管理/存储实体UDM/UDR发送的第二响应消息,该第二响应消息包括该用户签约的网络切片选择辅助信息NSSAI。
结合第三方面,在一些可能的实现方式中,该方法还包括:该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
本申请实施例提供的管理网络切片数据的方法,可集中共同部署统一数据管理/存储实体UDM/UDR,也可以下沉部署到切片内,可以使统一数据管理/存储实体UDM/UDR根据不同切片隔离要求进行编排,实现了部署和管理的灵活性,从而满足了对数据操作的低时延和物理隔离的要求。
第四方面,提供了一种管理网络切片数据的装置,该装置包括:
接收单元,该接收单元用于接收初始接入管理功能实体AMF发送的重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI。
处理单元,该处理单元用于根据该重定位消息进行鉴权和注册业务操作。
结合第四方面,该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
第五方面,提供了一种管理网络切片数据的装置,该装置包括:
发送单元,该发送单元用于向目标接入管理功能实体发送重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI,
其中,该重定位消息用于指示该目标接入管理功能实体进行鉴权和注册业务操作。
结合第五方面,该发送单元还用于向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
接收单元,该接收单元用于接收该公共统一数据管理/存储实体UDM/UDR发送的第一响应消息,该第一响应消息包括该用户签约的网络切片选择辅助信息NSSAI和该切片统一数据管理实体UDM的标识信息。
结合第五方面,该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
第六方面,提供了一种管理网络切片数据的装置,该装置包括:
接收单元,该接收单元用于接收初始接入管理功能实体AMF发送的第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
发送单元,该发送单元用于向该初始接入管理功能实体AMF发送第一响应消息,该 第一响应消息包括用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
结合第六方面,该发送单元,还用于向切片统一数据管理/存储实体UDM/UDR发送第二获取用户签约数据消息,该第二获取用户签约数据消息用于向切片统一数据管理/存储实体UDM/UDR请求该用户签约的网络切片选择辅助信息NSSAI;
该接收单元,还用于接收该切片统一数据管理/存储实体UDM/UDR发送的第二响应消息,该第二响应消息包括该用户签约的网络切片选择辅助信息NSSAI。
结合第六方面,该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
第七方面,提供了一种管理网络切片数据的装置,该管理网络切片数据的装置的结构中包括处理器。该处理器被配置为支持该管理网络切片数据的装置执行上述第一方面或第二方面及其各种实现方式中的功能,在一个可能的设计中,该管理网络切片数据的装置还可以包括收发器,用于支持该管理网络切片数据的装置接收或发送信息。
在一个可能的设计中,该管理网络切片数据的装置还可以包括存储器,该存储器用于与处理器耦合,保存该管理网络切片数据的装置中必要的程序指令和数据。
或者说,该管理网络切片数据的装置包括存储器和处理器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该管理网络切片数据的装置执行上述第一方面或第二方面或第三方面中及其各种实现方式中的任一种方法。
第八方面,提供一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序,当该计算机程序被执行时,用于执行第一方面或第二方面或第三方面中的任意可能的实现方式中的方法。
附图说明
图1是现有技术中,AMF重定向的注册流程的示意图。
图2是本申请实施例提供的一种管理网络切片数据的方法的示意性流程图。
图3是本申请实施例提供的另一种管理网络切片数据的方法的示意性流程图。
图4是本申请实施例提供的另一种管理网络切片数据的方法的示意性流程图。
图5是本申请实施例应用于AMF重定向的注册流程的示意图。
图6是本申请实施例提供的一种管理网络切片数据的装置的示意性框图。
图7是本申请实施例提供的另一种管理网络切片数据的装置的示意性框图。
图8是本申请实施例提供的另一种管理网络切片数据的装置的示意性框图。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于支持网络切片的各种通信系统或网络管理系统,例如:长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、未来的第五代(5th Generation,5G)系统或新无线(New Radio,NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、 移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设备等,本申请实施例对此并不限定。
需要说明的是,本文中的术语“用户设备”“终端设备”、“设备”等可以互相替换。
本申请实施例涉及网络切片(Network slice)技术。网络切片是能够提供一定网络能力、具备一定的网络特性的逻辑网络。网络切片是一个逻辑网络的概念,具体由网络切片实例来实现。网络切片实例包含若干网络功能实例、以及组成一个部署的逻辑网络所需要的计算、存储、网络等资源。例如在5G网络中,网络切片是一种按需组网的方式,为运营商带来能根据不断变化的用户需求进行调整,并快速满足新型应用需求的新服务。
网络切片技术将5G网络物理基础设施资源根据场景需求抽象为多个网络切片。每个网络切片按照业务场景的需要和业务模型进行网络功能的定制裁剪及相应网络功能的编排管理。一个网络切片可以视为一个实例化的5G网络。这样的网络结构允许运营商将网络作为一种服务提供给用户,并可以根据速率、容量、覆盖性、延迟、可靠性、安全性和可用性等指标对实体网络进行自由组合,从而满足不同用户的要求。
为了便于理解,先介绍本文中出现的一些术语:
网络切片:网络切片是一个概念,指在物理或者虚拟的网络基础设施之上,根据不同的服务需求定制不同的逻辑网络。网络切片可以是一个包括了终端、接入网、传输网、核心网和应用服务器的完整的端到端网络,能够提供完整的电信服务,具有一定的网络能力。网络切片也可以是上述终端、接入网、传输网、核心网和应用服务器中部分的任意组合。网络切片可能具有如下一个或多个特性:接入网可能切片,也可能不切片。接入网可能是多个网络切片共用的。其中,不同的网络切片的特性和组成它们的网络功能可能是不一样的。
网络功能:是网络中的一种处理功能,定义了功能性的行为和接口,网络功能可以通过专用硬件实现,也可以在通用的硬件平台上以虚拟功能的形式实现。因此,从实现的角度来讲,网络功能可以分为物理网络功能和虚拟网络功能。而从使用的角度来讲,网络功能可以分为专属网络功能和共享网络功能。具体地,对于多个(子)网络切片实例而言,可以独立地使用不同的网络功能,这种网络功能称为专属网络功能;或者,也可以共享同一个网络功能,这种网络功能称为共享网络功能。
RAN(Radio Access Network):无线接入网,主要的功能就是控制用户通过无线接入到移动通信网络中。
AMF(Access Management Function):接入管理功能,其可以接收终端设备的非接入层(Non-Access Stratum,NAS)信令和接入网设备的相关信令,完成用户的注册流程和会话管理(Session Management,SM)信令的转发以及移动性管理。
NSSF(Network Slice Selection Function):网络切片选择功能。
NRF(Network Repository Function):网络存储功能。
UDM(Unified Data Management):统一数据管理功能,是用户签约数据的永久存放地点,位于用户签约的归属网。
UDR(Unified Data Repository):统一数据存储库。
PLMN(Public Land Mobile Network):公用陆地移动网。
TAI(Tracking Area Identity):跟踪区标识。
网络切片标识是网络切片技术中最重要的参数。单一网络切片选择辅助信息(Single Network Slice Selection AssistanceInformation,S-NSSAI)可以唯一标识一个网络切片,而网络切片选择辅助信息(Network Slice Selection Assistance Information,NSSAI)是S-NSSAI的集合,标识一组网络切片。NSSAI在切片选择过程中起到很重要的作用,根据其存储位置及作用的不同,NSSAI可以分为如下几种:
(1)Configured NSSAI:预先配置在终端设备中的NSSAI,此NSSAI也可由NSSF或AMF生成并下发给终端设备,主要用于生成初始注册时使用的Requested NSSAI。
(2)SubscribedNSSAI:存储在UDM或UDR中的用户签约的NSSAI。
(3)Allowed NSSAI:允许终端设备在当前注册区接入的NSSAI。由NSSF根据Requested NSSAI、Subscribed NSSAI以及相关策略计算生成后传送给AMF与终端设备的,或者在某些场景下直接由AMF生成的NSSAI,其保存在用户设备与AMF中。
(4)Rejected NSSAI:在注册流程中,终端设备注册成功但存在部分切片拒绝接入时,网络设备终端设备下发的拒绝接入的S-NSSAIs,即拒绝用户设备接入的NSSAI。对于PLMN不支持的NSSAI,终端设备在该PLMN下不能再接入,对于当前注册区不支持的NSSAI,终端设备在移出该注册区前不能再接入。
(5)Requested NSSAI:终端设备根据保存的Configured NASSI、Allowed NSSAI、所在的服务PLMN、所在的TAI位置区域等信息,在注册流程中向AMF发送请求的NSSAI,可携带在初始注册消息的无线资源控制(Radio Resource Control,RRC)与NAS层消息中,表示终端设备在本次注册中请求使用的NSSAI。
GUAMI(Globally Unique AMF Identifier):全球唯一的AMF标识符,标识AMF。
SUPI(Network Slice Subnet Management Function):切片子网管理实体,用户的唯一永久身份标志。
图1示出了在现有技术中,AMF重定向的注册流程的示意图。
重定向应用于:当初始AMF收到终端设备发送的注册请求后,该初始AMF不适合为终端设备提供服务时,AMF可能需要将注册请求改道发送到另外一个目标AMF,由目标AMF完成注册流程。重定向的前提是,初始AMF和目标AMF需要在NRF上预先注册能力。
S100,终端设备向RAN发送注册请求消息,消息中可以携带终端设备的Requested NSSAI、GUAMI,终端设备的Requested NSSAI包含终端设备期望注册的S-NSSAIs。
S101,RAN根据GUAMI或终端设备Requested NSSAI选择初始AMF。
S102,RAN向初始AMF发送注册请求消息。
S103,初始AMF通过终端设备的号段向NRF查询终端设备的Subscribed NSSAI存储的UDM或UDR的地址。
具体来说,初始AMF向NRF发送查询消息,该查询消息中携带终端设备的号段信息, NRF根据终端设备的号段信息,确定该号段的终端设备对应的Subscribed NSSAI存储的UDM或UDR的地址。
S104,NRF向初始AMF发送响应消息,该响应消息中携带存储终端设备的Subscribed NSSAI的UDM或UDR的地址。
S105,初始AMF向UDM或UDR发送获取用户签约数据消息,该消息用于获取存储于UDM或UDR中的终端设备的SubscribedNSSAI。
具体来说,在现有流程中,初始AMF向UDM发送获取用户签约数据消息,该消息中携带终端设备的SUPI信息。初始AMF通过触发Nudm_SDM_Get服务操作从UDM请求终端设备的SubscribedNSSAI,UDM通过用户的SUPI信息执行Nudr_DM_Query操作从UDR获取终端设备的SubscribedNSSAI。
S106,UDM向初始AMF发送响应消息,该响应消息中携带终端设备对应的Subscribed S-NSSAIs信息。
具体来说,现有流程中,UDM通过执行Nudm_SDM_Get操作向初始AMF发送GET消息响应消息,响应消息中携带终端设备对应的切片数据Subscribed S-NSSAIs信息。
S107,初始AMF向NSSF发送查询消息,消息中携带Requested NSSAI、Subscribed S-NSSAI、SUPI的PLMN、TAI等信息,请求查询消息用于向NSSF查询Allowed NSSAI以及服务AMF的信息。
S108,NSSF收到查询请求后,根据收到的信息、本地配置与其他本地可用信息,处理请求消息。
具体来说,NSSF收到查询消息后会执行以下操作:
(1)NSSF根据Subscribed S-NSSAIs校验Requested NSSAI中哪些S-NSSAIs可以允许接入。当Requested NSSAI中的所有S-NSSAIs均不在Subscribed S-NSSAIs时,NSSF还会考虑使用缺省的Subscribed S-NSSAIs。
(2)NSSF为终端设备选择为其服务的网络切片实例。目前有两种切片实例的分配方式,一种是在注册时就为所有Allowed S-NSSAIs分配切片实例的方式;另一种是第一次使用某个切片时,才为终端设备分配切片实例的方式。在选择切片实例时,NSSF可能会返回切片实例标识,也可能只是返回各切片实例专用的NRF。
(3)NSSF确定为终端设备服务的目标AMF组,或者根据配置或者查询NRF,进一步决定候选AMFs。
(4)NSSF根据当前终端设备所在跟踪区中切片实例的可用性,确定Allowed NSSAI。
S109,NSSF向初始AMF发送响应消息,消息中携带目标AMF组、Allowed NSSAI、网络切片实例、NRF实例信息。
S110,初始AMF根据NSSF发送的响应消息中的AMF组,判断不在AMF组中。
S111,初始AMF向NRF发送查询消息,该查询消息用于向NRF查询候选AMF列表。
S112,NRF向初始AMF发送响应消息,响应消息返回可用的AMF列表。
S113,初始AMF在可用的AMF列表中选择一个作为目标AMF(target AMF,T-AMF)。
S114,初始AMF向目标AMF发送终端设备的注册请求消息。
具体来说,初始AMF将收到的终端设备的注册请求消息中携带的终端设备的 Requested NSSAI、GUAMI、终端设备期望注册的S-NSSAIs以及从NSSF获得的信息包括:Allowed NSSAI、网络切片实例、NRF实例都发送给目标AMF。
S115,目标AMF继续执行注册流程的相关步骤,即目标AMF继续执行上述S103-S109步骤,最终完成用户注册。
因此,从上述流程可以看出,当目标AMF继续执行终端设备注册流程的相关步骤时,目标AMF仍需要依赖号段从NRF中获取存储终端设备的Subscribed NSSAI的UDM或UDR的地址信息。
图2是本申请实施例提供的一种管理网络切片数据的方法的示意性流程图。
S201,接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR发送获取用户签约数据消息,该获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
具体来说,该获取用户签约数据消息中包括用户切片子网管理实体标识信息,即SUPI信息,根据SUPI信息,公共UDM/UDR就可以确定到相应的存储用户签约的网络切片选择辅助信息NSSAI的切片UDM的标识信息,获取该用户的签约的网络切片选择辅助信息NSSAI。
可以理解的是,该切片统一数据管理实体UDM的标识信息是存储该用户签约的网络切片选择辅助信息的切片统一数据管理实体的标识信息。
S202,公共统一数据管理/存储实体UDM/UDR向接入管理功能实体AMF发送响应消息,响应消息中包括用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
应理解,该接入管理功能实体AMF可以是初始接入管理功能实体,也可以是目标接入管理功能实体T-AMF,本申请对此不做限定。当该接入管理功能实体为初始接入管理功能实体时,可以表示终端设备在初始注册时,获取用户签约的网络切片选择辅助信息NSSAI的过程。当该接入管理功能实体AMF为目标接入管理功能实体T-AMF时,可以表示终端设备在重定向注册时,获取用户签约的网络切片选择辅助信息NSSAI的过程。
在本实施例中切片统一数据管理实体UDM的标识信息可以是切片统一数据管理实体UDM的地址信息或其他信息,本申请对此不做限定。
通过部署公共统一数据管理/存储实体UDM/UDR,当接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI时,公共统一数据管理/存储实体UDM/UDR返回的响应消息中携带用户归属的切片统一数据管理实体UDM的标识信息,即公共统一数据管理/存储实体UDM/UDR统一管理用户归属的切片统一数据管理实体UDM的标识信息,可以支持数据的统一路由和管理,能够更加灵活的规划切片部署。
图3是本申请实施例提供的另一种管理网络切片数据的方法的示意性流程图。
S301,接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR获取用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
S302,公共统一数据管理/存储实体UDM/UDR向切片统一数据管理/存储实体 UDM/UDR发送第二获取用户签约数据消息,该第二获取用户签约数据消息用于向切片统一数据管理/存储实体UDM/UDR获取用户签约的网络切片选择辅助信息NSSAI。
S303,切片统一数据管理/存储实体UDM/UDR确定存储该用户的用户签约的网络切片选择辅助信息NSSAI。
S304,切片统一数据管理/存储实体UDM/UDR向公共统一数据管理/存储实体UDM/UDR发送第二响应消息,该第二响应消息中包括用户签约的网络切片选择辅助信息NSSAI。
S305,公共统一数据管理/存储实体UDM/UDR向接入管理功能实体AMF发送第一响应消息,该第一响应消息中包括用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM标识。
具体来说,接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,该第一获取用户签约数据消息中包括用户的SUPI信息,该第一获取用户签约数据消息用于向该公共统一数据管理/存储实体UDM/UDR获取用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。该公共统一数据管理/存储实体UDM/UDR中存储着切片统一数据管理实体UDM的标识信息,因此,该公共统一数据管理/存储实体UDM/UDR根据SUPI信息,确定相应的管理用户签约的网络切片选择辅助信息NSSAI的统一数据管理实体UDM标识信息,并通过第二获取用户签约数据消息将该切片统一数据管理实体UDM标识信息传递给切片统一数据管理/存储实体UDM/UDR,切片统一数据管理/存储实体UDM/UDR根据切片统一数据管理实体UDM标识信息获取用户签约的网络切片选择辅助信息NSSAI,并通过第二响应消息返回给公共统一数据管理/存储实体UDM/UDR,最终由公共统一数据管理/存储实体UDM/UDR将用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM标识信息通过第一响应消息传递给接入管理功能实体AMF。
可选的,在本实施例中,切片统一数据管理实体UDM的标识信息可以是切片统一数据管理实体UDM的地址信息或其他信息,本申请对此不做限定。
通过部署公共统一数据管理/存储实体UDM/UDR,当接入管理功能实体向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI时,扩展现有接口,实现公共统一数据管理/存储实体UDM/UDR与切片统一数据管理/存储实体UDM/UDR之间的信息交互,公共统一数据管理/存储实体UDM/UDR中存储的切片统一数据管理实体UDM的标识信息,可以实现离散用户的切片管理,避免复杂的号段管理问题。
图4是本申请实施例提供的另一种管理网络切片数据的方法的示意性流程图。
S401,第一接入管理功能实体AMF向第二接入管理功能实体AMF发送重定位消息。该重定位消息中包括终端设备的注册请求信息、Allowed NSSAI、网络切片实例、NRF实例、以及切片统一数据管理UDM的标识信息。
S402,第二接入管理功能实体AMF根据第一接入管理功能实体AMF发送的信息,进行鉴权,完成用注册。
当接入管理功能实体AMF进行重定向注册流程时,可以利用切片统一数据管理/存储实体UDM/UDR的地址信息直接定位到存储用户签约的网络切片选择辅助信息NSSAI的 切片统一数据管理/存储实体UDM/UDR,避免了重定向注册流程中的UDM服务发现过程,有助于节约资源,提升设备的性能。
图5是本申请实施例应用于AMF重定向的注册流程的示意图。由于初始AMF不适合为终端设备提供服务时,初始AMF需要将终端设备的注册请求发送给另外一个目标AMF,由目标AMF完成终端设备的注册流程。下面以图3所示的管理网络切片数据的方法应用于图1所示的重定向过程为例进行描述。
S500,终端设备向RAN发送注册请求消息,消息中可以携带终端设备的Requested NSSAI、GUAMI,其中,终端设备的Requested NSSAI包括终端设备期望注册的S-NSSAIs。
S501,RAN根据GUAMI或终端设备Requested NSSAI选择初始AMF。
S502,RAN向初始AMF发送终端设备的注册请求消息。
S503,当初始AMF接收到终端设备的注册请求消息后,为了获得终端设备的Subscribed NSSAI,初始AMF通过终端设备的号段向NRF查询公共UDM/UDR的标识信息。
具体来说,初始AMF向NRF发送查询消息,该查询消息中携带终端设备的号段信息,NRF根据终端设备的号段信息,首先需要确定管理/存储切片UDM/UDR的标识信息的公共UDM/UDR的标识信息,即,公共UDM/UDR用来管理/存储切片UDM/UDR的标识信息,当初始AMF想要获取该号段的终端设备对应的Subscribed NSSAI时,需要先获得公共UDM/UDR的标识信息。
S504,NRF向初始AMF发送响应消息,该响应消息中携带公共UDM/UDR的标识信息。
S505,利用从NRF处获得的公共UDM/UDR的标识信息,初始AMF根据该公共UDM/UDR的标识信息向锁定的公共UDM/UDR发送获取用户签约数据消息,该消息用于获取存储于切片UDM/UDR中的终端设备的SubscribedNSSAI以及切片UDM/UDR的标识信息。
S506,当收到从初始AMF处发送的获取用户签约信息后,获得的公共UDM/UDR根据获取用户签约数据消息中携带的SUPI信息,确定切片UDM的标识信息,并向该标识信息标识的切片UDM/UDR发送获取用户签约数据消息,该获取用户签约数据消息用于获取存储于切片UDM/UDR中的终端设备的SubscribedNSSAI。
S507,切片UDM/UDR将终端设备的SubscribedNSSAI通过响应消息返回给公共UDM/UDR。
S508,公共UDM/UDR将从切片UDM/UDR中获得的终端设备的SubscribedNSSAI以及存储在公共UDM/UDR中的对应管理该终端设备的SubscribedNSSAI的切片UDM的标识信息返回给初始AMF。
S509,初始AMF向NSSF发送查询消息,消息中携带Requested NSSAI、Subscribed S-NSSAI、SUPI的PLMN、TAI等信息,请求查询消息用于向NSSF查询Allowed NSSAI以及服务AMF的信息。
S510,NSSF收到查询请求后,根据收到的信息、本地配置与其他本地可用信息,处理请求消息。
具体来说,NSSF收到查询消息后会执行以下操作:
(1)NSSF根据Subscribed S-NSSAIs校验Requested NSSAI中哪些S-NSSAIs可以允许接入。当Requested NSSAI中的所有S-NSSAIs均不在Subscribed S-NSSAIs时,NSSF还会考虑使用缺省的Subscribed S-NSSAIs。
(2)NSSF为终端设备选择为其服务的网络切片实例。目前有两种切片实例的分配方式,一种是在注册时就为所有Allowed S-NSSAIs分配切片实例的方式;另一种是第一次使用某个切片时,才为终端设备分配切片实例的方式。在选择切片实例时,NSSF可能会返回切片实例标识,也可能只是返回各切片实例专用的NRF。
(3)NSSF确定为终端设备服务的目标AMF组,或者根据配置或者查询NRF,进一步决定候选AMFs。
(4)NSSF根据当前终端设备所在跟踪区中切片实例的可用性,确定Allowed NSSAI。
S511,NSSF向初始AMF发送响应消息,消息中携带目标AMF组、Allowed NSSAI、网络切片实例、NRF实例信息。
S512,初始AMF根据NSSF发送的响应消息中的AMF组,判断不在AMF组中。
S513,初始AMF向NRF发送查询消息,该查询消息用于向NRF查询候选AMF列表。
S514,NRF向初始AMF发送响应消息,响应消息返回可用的AMF列表。
S515,初始AMF在可用的AMF列表中选择一个作为目标T-AMF。
S516,初始AMF向目标T-AMF发送终端设备的注册请求消息。
具体来说,初始AMF将收到的终端设备的注册请求消息中携带的终端设备的Requested NSSAI、GUAMI、终端设备期望注册的S-NSSAIs以及从NSSF获得的信息包括:Allowed NSSAI、网络切片实例、NRF实例以及从公共UDM/UDR处获得的切片UDM的标识信息都发送给目标T-AMF。
S517,目标T-AMF根据收到的切片UDM的标识信息,锁定终端设备的Subscribed S-NSSAIs的存储位置,不再进行UDM的发现过程,只进行鉴权并完成用户注册。
因此,从上述流程可以看出,通过部署公共统一数据管理/存储实体UDM/UDR,统一管理和存储切片统一数据管理UDM的地址,并可以通过初始AMF将该切片统一数据管理UDM的标识信息转发给T-AMF。当T-AMF执行终端设备注册流程的相关步骤时,目标T-AMF不需要依赖号段从NRF中获取管理终端设备的Subscribed NSSAI的切片UDM的标识信息。即,与现有技术相比,在重定向过程中,T-AMF不需要二次切片UDM的服务发现过程,避免了二次号段查询,提高了注册效率,节约了资源。
本申请实施例还提供用于实现以上任一种方法的装置。例如,提供一种装置,包括用以实现以上任一种方法中接入管理功能实体AMF所执行的各个步骤的单元(或手段)。再如,还提供另一种装置,包括用以实现以上任一种方法中公共统一数据管理/存储实体UDM/UDR所执行的各个步骤的单元(或手段)。
图6是本申请实施例提供的一种管理网络切片数据的装置的示意性框图,如图6所示,该装置600可以包括接收单元601、处理单元602。
接收单元用于接收初始接入管理功能实体AMF发送的重定位消息,该重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI。
处理单元用于根据该重定位消息进行鉴权和注册业务操作。
图7是本申请实施例提供的一种管理网络切片数据的装置的示意性框图,如图6所示,该装置700可以包括接收单元701、发送单元702。
发送单元701用于向目标接入管理功能实体T-AMF发送重定位消息,该重定位消息包括该切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI,该重定位消息用于指示该目标接入管理功能实体T-AMF根据该切片统一数据管理实体UDM的标识信息和该用户允许的网络切片选择辅助信息NSSAI完成注册流程。
可选的,发送单元701还用于向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
接收单元702用于接收该公共统一数据管理/存储实体UDM/UDR发送的第一响应消息,该第一响应消息包括该用户签约的网络切片选择辅助信息NSSAI和该切片统一数据管理实体UDM的标识信息;
可选的,接收单元701接收的、发送单元702发送的该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
图8是本申请实施例提供的一种管理网络切片数据的装置的示意性框图,如图7所示,该装置800可以包括接收单元801、发送单元802。
接收单元801用于接收接入管理功能实体AMF发送的第一获取用户签约数据消息,该第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
发送单元802用于向该接入管理功能实体AMF发送第一响应消息,该第一响应消息包括用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息。
可选的,在该发送单元802向该接入管理功能实体AMF发送第一响应消息之前,该装置的该发送单元802还用于向切片统一数据管理/存储实体UDM/UDR发送第二获取用户签约数据消息,该第二获取用户签约数据消息用于向切片统一数据管理/存储实体UDM/UDR请求该用户签约的网络切片选择辅助信息NSSAI;
该接收单元801还用于接收该切片统一数据管理/存储实体UDM/UDR发送的第二响应消息,该第二响应消息包括该用户签约的网络切片选择辅助信息NSSAI。
可选的,该接收单元801接收的、该发送单元802发送的该切片统一数据管理实体UDM的标识信息包括切片统一数据管理实体UDM的地址信息。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当该指令在计算机上运行时,使得计算机执行上述如图2至图5所示的方法中接入管理功能实体AMF执行的各个步骤。
本申请还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当 该指令在计算机上运行时,使得计算机执行上述如图2至图5所示的方法中公共统一数据管理/存储实体UDM/UDR执行的各个步骤。
本申请还提供了一种包含指令的计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机执行如图2至图5所示的方法中接入管理功能实体AMF执行的各个步骤。
本申请还提供了一种包含指令的计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机执行如图2至图5所示的方法中公共统一数据管理/存储实体UDM/UDR执行的各个步骤。
本申请实施例还提供了一种管理网络切片的系统,包括上述实施例中的第一管理功能实体对应的装置和第二管理功能实体对应的装置。
上述本申请实施例揭示的方法可以应用于处理器中,或者由处理器实现。处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP),专用集成电路(application specific integrated circuit,ASIC),现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件,分立门或者晶体管逻辑器件,分立硬件组件,还可以是系统芯片(system on chip,SoC),还可以是中央处理器(central processor unit,CPU),还可以是网络处理器(network processor,NP),还可以是数字信号处理电路(digital signal processor,DSP),还可以是微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)或其他集成芯片。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存取存储器(random access memory,RAM)、闪存、只读存储器(read-only memory,ROM)、可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的指令,结合其硬件完成上述方法的步骤。
应理解,在本申请实施例中,引入编号“第一”,“第二”…只是为了区分不同的对象,比如,区分不同的“标识”,或者,区分不同的“管理请求”,并不对本申请实施例的保护范围构成限定。
还应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
还应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可 以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种管理网络切片数据的方法,其特征在于,包括:
    目标接入管理功能实体接收初始接入管理功能实体AMF发送的重定位消息,所述重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI;
    所述目标接入管理功能实体根据所述重定位消息进行鉴权和注册业务操作。
  2. 根据权利要求1所述的方法,其特征在于,所述切片UDM的标识信息包括切片UDM的地址信息。
  3. 一种管理网络切片数据的方法,其特征在于,包括:
    初始接入管理功能实体AMF向目标接入管理功能实体发送重定位消息,所述重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI,
    其中,所述重定位消息用于指示所述目标接入管理功能实体进行鉴权和注册业务操作。
  4. 根据权利要求3所述的方法,其特征在于,所述初始接入管理功能实体AMF向目标接入管理功能实体发送重定位消息之前,所述方法还包括:
    所述初始接入管理功能实体AMF向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,所述第一获取用户签约数据消息用于向所述公共UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和所述切片UDM的标识信息;
    所述初始接入管理功能实体AMF接收所述公共UDM/UDR发送的第一响应消息,所述第一响应消息包括所述用户签约的NSSAI和所述切片UDM的标识信息。
  5. 根据权利要求3或4所述的方法,其特征在于,所述切片UDM的标识信息包括切片UDM的地址信息。
  6. 一种管理网络切片数据的方法,其特征在于,包括:
    公共统一数据管理/存储实体UDM/UDR接收初始接入管理功能实体AMF发送的第一获取用户签约数据消息,所述第一获取用户签约数据消息用于向公共UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
    所述公共UDM/UDR向所述初始接入管理功能实体AMF发送第一响应消息,所述第一响应消息包括所述用户签约的NSSAI和所述切片UDM的标识信息。
  7. 根据权利要求6所述的方法,其特征在于,所述公共UDM/UDR向所述初始接入管理功能实体AMF发送第一响应消息之前,所述方法还包括:
    所述公共UDM/UDR向切片UDM/UDR发送第二获取用户签约数据消息,所述第二获取用户签约数据消息用于向所述切片UDM/UDR请求所述用户签约的NSSAI;
    所述公共UDM/UDR接收所述切片UDM/UDR发送的第二响应消息,所述第二响应消息包括所述用户签约的NSSAI。
  8. 根据权利要求6或7所述的方法,其特征在于,所述切片UDM的标识信息包括切片UDM的地址信息。
  9. 一种管理网络切片数据的装置,其特征在于,包括:
    接收单元,所述接收单元用于接收初始接入管理功能实体AMF发送的重定位消息,所述重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI;
    处理单元,所述处理单元用于根据所述重定位消息进行鉴权和注册业务操作。
  10. 根据权利要求9所述的装置,其特征在于,
    所述接收单元或所述处理单元中的所述切片UDM的标识信息包括切片UDM的地址信息。
  11. 一种管理网络切片数据的装置,其特征在于,包括:
    发送单元,所述发送单元用于向目标接入管理功能实体发送重定位消息,所述重定位消息包括切片统一数据管理实体UDM的标识信息和用户允许的网络切片选择辅助信息NSSAI,
    其中,所述重定位消息用于指示所述目标接入管理功能实体进行鉴权和注册业务操作。
  12. 根据权利要求11所述的装置,其特征在于,
    所述发送单元,还用于向公共统一数据管理/存储实体UDM/UDR发送第一获取用户签约数据消息,所述第一获取用户签约数据消息用于向公共UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和所述切片UDM的标识信息;
    接收单元,所述接收单元用于接收所述公共UDM/UDR发送的第一响应消息,所述第一响应消息包括所述用户签约的NSSAI和所述切片UDM的标识信息。
  13. 根据权利要求11或12所述的装置,其特征在于,
    所述发送单元或所述接收单元中的所述切片UDM的标识信息包括切片UDM的地址信息。
  14. 一种管理网络切片数据的装置,其特征在于,包括:
    接收单元,所述接收单元用于接收初始接入管理功能实体AMF发送的第一获取用户签约数据消息,所述第一获取用户签约数据消息用于向公共统一数据管理/存储实体UDM/UDR请求用户签约的网络切片选择辅助信息NSSAI和切片统一数据管理实体UDM的标识信息;
    发送单元,所述发送单元用于向所述初始接入管理功能实体AMF发送第一响应消息,所述第一响应消息包括所述用户签约的NSSAI和所述切片UDM的标识信息。
  15. 根据权利要求14所述的装置,其特征在于,
    所述发送单元,还用于向切片UDM/UDR发送第二获取用户签约数据消息,所述第二获取用户签约数据消息用于向所述切片UDM/UDR请求所述用户签约的NSSAI;
    所述接收单元,还用于接收所述切片UDM/UDR发送的第二响应消息,所述第二响应消息包括所述用户签约的NSSAI。
  16. 根据权利要求14或15所述的装置,其特征在于,
    所述发送单元或所述接收单元中的所述切片UDM的标识信息包括切片UDM的地址信息。
  17. 一种管理网络切片数据的装置,其特征在于,包括:
    存储器,所述存储器用于存储计算机程序;
    处理器,所述处理器用于执行所述存储器中存储的计算机程序,以使得所述设备执行 如权利要求1至2中任一项所述的方法,或者执行如权利要求3至5中任一项所述的方法,或者执行如权利要求6至8中任一项所述的方法。
  18. 一种计算机可读介质,其特征在于,包括计算机程序或指令,当所述计算机程序或指令在计算机上运行时,使得所述计算机执行如权利要求1至2中任一项所述的方法,或者执行如权利要求3至5中任一项所述的方法,或者执行如权利要求6至8中任一项所述的方法。
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