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WO2021115447A1 - 会话管理网元发现的方法、设备及系统 - Google Patents

会话管理网元发现的方法、设备及系统 Download PDF

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Publication number
WO2021115447A1
WO2021115447A1 PCT/CN2020/135862 CN2020135862W WO2021115447A1 WO 2021115447 A1 WO2021115447 A1 WO 2021115447A1 CN 2020135862 W CN2020135862 W CN 2020135862W WO 2021115447 A1 WO2021115447 A1 WO 2021115447A1
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WIPO (PCT)
Prior art keywords
network element
management network
unified data
data management
identifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/135862
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English (en)
French (fr)
Inventor
王毓芳
吕黎明
郝文杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP20898692.7A priority Critical patent/EP4044689A4/en
Publication of WO2021115447A1 publication Critical patent/WO2021115447A1/zh
Priority to US17/837,653 priority patent/US20220303751A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • 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
    • 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

Definitions

  • This application relates to the field of communications, and in particular to methods, devices and systems for discovering session management network elements.
  • the 5th, 5G fifth generation
  • some operators are expected to adopt different session management functions for different service packages with the same data network name (DNN) when operating and planning service packages.
  • SMF session management funcion, SMF network element discovery strategy.
  • DNN data network name
  • SMF session management funcion, SMF network element discovery strategy.
  • eMBB enhanced mobile broadband
  • the DNN of the two service packages is the same (both are eMBB services)
  • the operator may wish to The terminal device that has signed the general package of the eMBB service selects the visited SMF network element to perform the service; and the terminal device that has signed the specific service package of the eMBB service selects the home SMF network element to perform the service.
  • the embodiments of the present application provide a method, device, and system for discovering a session management network element, which can provide a differentiated session management network element discovery strategy for terminal devices that have subscribed to different service packages under the same DNN.
  • a method for discovering a session management network element includes: a network function storage function network element receiving a first identifier from a mobility management network element, where the first identifier is used to identify the home location of a terminal device; The network function storage function network element determines the first session management network element according to the first identifier, where the home location identifier of the first session management network element is the same as the first identifier; the network function storage function network element sends the first session management network element to the mobility management network element. An identifier of the session management network element.
  • the first identifier received by the network function storage function network element is sent by the mobility management network element to the network function storage function network element when it determines that the service package contracted by the terminal device is a preset service package.
  • the first identifier received by the network function storage function network element is sent to the network function storage function network element when the mobile management network element determines that the subscription information of the terminal device includes the terminal device's home location identifier, and when the terminal device signs a contract
  • the subscription information of the terminal device will include the home location identifier of the terminal device.
  • the network function storage function network element receives the first identifier from the mobility management network element, it means that the service package contracted by the terminal device is a preset service package.
  • the network function storage function network element can identify the terminal device according to the The first identifier of the home location of the terminal device matches the corresponding first session management network element, and then sends the identifier of the first session management network element to the mobility management network element, so that it can be used for those who subscribe to different service packages under the same DNN Terminal equipment, providing different session management network element discovery strategies. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the first identifier is the attribution identifier of the first unified data management network element, and the first unified data management network element is the unified data management network element subscribed by the terminal device; or, the first identifier is the terminal device The identity of the attribution.
  • the method further includes: the network function storage function network element sends the first unified data management network element to the mobility management network element The identity of the attribution.
  • the network function storage function network element sending the home location identification of the first unified data management network element to the mobility management network element includes: the network function storage function network element sending the first unified data management to the mobility management network element Network function configuration information of the network element, where the network function configuration information includes the home location identifier of the first unified data management network element.
  • the mobility management network element can obtain the home location identifier of the first unified data management network element according to the network function configuration information of the first unified data management network element.
  • the method further includes: the network function storage function network element receives a first message from the first unified data management network element, the first message carries the home location identifier of the first unified data management network element, The first message is used to register the first unified data management network element to the network function storage function network element. Based on this solution, the network function storage function network element can obtain the home location identifier of the first unified data management network element through the first message.
  • the method further includes: the network function storage function network element receives a second message from the first session management network element, the second message carries the home location identifier of the first session management network element, wherein, The second message is used to register the first session management network element to the network function storage function network element. Based on this solution, the network function storage function network element can obtain the home location identifier of the first session management network element through the second message.
  • the home location identifier of the first session management network element is included in the network function configuration information of the first session management network element. Based on this solution, the home location identifier of the first session management network element can be obtained through the network function configuration information of the first session management network element.
  • a method for session management network element discovery includes: a first unified data management network element obtains subscription information of a terminal device, and the subscription information is used to determine whether the service package subscribed by the terminal device is a preset In the service package, the first unified data management network element is a unified data management network element signed by the terminal device; the first unified data management network element sends the contract information to the mobile management network element.
  • the first unified data management network element can obtain the contract information of the terminal device and send the contract information of the terminal device to the mobile management network element
  • the mobile management network element can receive the terminal device from the mobile management network element
  • the home location identifier of the first unified data management network element is sent to the network function storage function network element.
  • the network function storage function network element when the network function storage function network element receives the home location identification of the first unified data management network element from the mobility management network element, it can match the corresponding terminal device according to the home location identification of the first unified data management network element And send the identity of the first session management network element to the mobility management network element, so as to realize that different session management network element discovery strategies are provided for terminal devices that have subscribed to different service packages under the same DNN. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the method further includes: the first unified data management network element sends a first message to the network function storage function network element, where the first message carries the home location identifier of the unified data management network element, wherein: The first message is used to register the unified data management network element to the network function storage function network element. Based on this solution, the network function storage function network element can obtain the home location identifier of the first unified data management network element through the first message.
  • a method for session management network element discovery includes: the mobility management network element receives the home location identifier of the first unified data management network element from the network function storage function network element, and the first unified data management
  • the network element is a unified data management network element signed by the terminal device; the mobile management network element receives the contract information of the terminal device from the first unified data management network element; when the mobile management network element determines that the service package signed by the terminal device is a pre-determined service package according to the contract information
  • the mobility management network element sends the home location identification of the first unified data management network element to the network function storage function network element, and the home location identification of the first unified data management network element is used to determine the first session management network element,
  • the attribution identifiers of the first session management network element and the first unified data management network element are the same; the mobility management network element receives the identifier of the first session management network element from the network function storage function network element.
  • the mobility management network element can receive the home location identification of the first unified data management network element from the network function storage function network element and the contract information of the terminal equipment from the first unified data management network element, and according to When the contract information of the terminal device determines that the service package subscribed by the terminal device is a preset service package, the home location identifier of the first unified data management network element is sent to the network function storage function network element. Therefore, the network function storage function network element can receive the attribution identifier of the first unified data management network element from the mobility management network element, and then match the corresponding first unified data management network element to the terminal device according to the attribution identifier of the first unified data management network element.
  • the session management network element and sends the identification of the first session management network element to the mobility management network element, so as to realize that different session management network element discovery strategies are provided for terminal devices contracted with different service packages under the same DNN. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the mobility management network element receiving the home location identifier of the first unified data management network element from the network function storage function network element includes: the mobility management network element receives the first unified data management network element from the network function storage function network element The network function configuration information of the unified data management network element, where the network function configuration information includes the home location identifier of the first unified data management network element. Based on this solution, the mobility management network element can obtain the home location identifier of the first unified data management network element through the network function configuration information of the first unified data management network element.
  • a method for discovering a session management network element includes: a first unified data management network element obtains subscription information of a terminal device, and the first unified data management network element is a data management network element contracted by the terminal device ; Wherein, when the service package contracted by the terminal device is a preset service package, the subscription information of the terminal device includes the attribution identification of the terminal device; the attribution identification of the terminal device is used to determine the first session management network element, the first session The home location identifier of the management network element and the terminal device are the same; the first unified data management network element sends the subscription information to the mobility management network element.
  • the first unified data management network element can obtain the contract information of the terminal device, and send the contract information of the terminal device to the mobility management network element, where, when the service package contracted by the terminal device is a preset service package ,
  • the subscription information of the terminal device includes the identification of the attribution of the terminal device. Therefore, when the mobility management network element determines that the received terminal device’s subscription information contains the terminal device’s home location identifier, it means that the service package signed by the terminal device is a preset service package.
  • the mobility management network element can report to the network function
  • the storage function network element sends the home location identification of the terminal device, and then when the network function storage function network element receives the home location identification of the terminal device from the mobility management network element, it can match the terminal device according to the home location identification of the terminal device
  • the corresponding first session management network element and sends the identification of the first session management network element to the mobility management network element, so as to realize that different session management network element discovery strategies are provided for terminal devices that have subscribed to different service packages under the same DNN. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • a method for discovering a session management network element includes: a mobility management network element receives contract information from a terminal device of a first unified data management network element, and the first unified data management network element is the terminal device The contracted data management network element; when the mobility management network element determines that the subscription information includes the home location identification of the terminal device, the mobility management network element sends the home location identification of the terminal device to the network function storage function network element, and the home location identification of the terminal device Used to determine the first session management network element, where the home location identification of the first session management network element is the same as the home location identification of the unified data management network element; the mobility management network element receives the first session management from the network function storage function network element The identity of the network element.
  • the mobility management network element can receive the contract information of the terminal device from the first unified data management network element, and when the service package signed by the terminal device is a preset service package, the contract information of the terminal device includes The home location identifier of the terminal device. Therefore, when the mobility management network element determines that the subscription information includes the home location identifier of the terminal device, it means that the service package signed by the terminal device is a preset service package.
  • the mobility management network element sends the home location identification of the terminal device to the network function storage function network element, and then the network function storage function network element can receive the home location identification of the terminal device from the mobility management network element, and according to the attribution of the terminal device Local identification, matching the corresponding first session management network element for the terminal device, and sending the identification of the first session management network element to the mobility management network element, so as to realize that different sessions are provided for terminal devices that have signed up with different service packages under the same DNN Manage network element discovery strategies. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • a communication device for implementing the above-mentioned various methods.
  • the communication device includes modules, units, or means corresponding to the foregoing methods, and the modules, units, or means can be implemented by hardware, software, or hardware execution of corresponding software.
  • the hardware or software includes one or more modules or units corresponding to the above-mentioned functions.
  • a communication device including: a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send the signals from the processor to the communication device.
  • the processor is used to implement any of the foregoing methods through logic circuits or execution code instructions.
  • the communication device further includes a memory.
  • the memory is used to store computer instructions.
  • the processor executes the instructions, the communication device executes the method described in any of the above aspects.
  • a communication device including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method according to any of the foregoing aspects according to the instruction.
  • the communication device further includes a memory for storing necessary program instructions and data.
  • the communication device is a chip system, it may be composed of chips, or may include chips and other discrete devices.
  • the communication device may be the network function storage function network element in the above-mentioned first aspect, or may be used for the network in the above-mentioned first aspect
  • the chip or chip system of the function storage function network element, or the device containing the above network function storage function network element; or, the communication device may be the first unified data management network element in the second aspect or the fourth aspect, or may be available
  • the mobility management network element in the fifth aspect may be a chip or chip system that can be used for the mobility management network element in the third aspect or the fifth aspect, or a device containing the mobility management network element described above.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the method described in any of the above aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the method described in any of the above aspects.
  • a communication system in an eleventh aspect, includes the network function storage function network element in the first aspect, the first unified data management network element in the second aspect, and the mobile management network element in the third aspect. Or, the communication system includes the network function storage function network element in the first aspect, the first unified data management network element in the fourth aspect, and the mobility management network element in the fifth aspect.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of this application.
  • FIG. 2 is a schematic diagram of a 5G network architecture provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a communication system provided by an embodiment of this application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of a method for discovering a session management network element according to an embodiment of this application
  • FIG. 6 is a schematic flowchart of another method for discovering a session management network element according to an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of a network function storage function network element provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a first unified data management network element provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a mobility management network element provided by an embodiment of this application.
  • At least one item (a) refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items with substantially the same function and effect.
  • words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not limit the difference.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions.
  • words such as “exemplary” or “for example” are used to present related concepts in a specific manner to facilitate understanding.
  • each network element or terminal device belongs to only one administrative management area, and "home location” is used to indicate the administrative management area to which the network element or terminal device belongs, and the "home location identifier" is used to identify The home location of the network element or terminal equipment.
  • the network architecture may include one or more of a mobile management network element, a unified data management network element, a policy control network element, a billing network element, a session management network element, a user plane network element, or a network function storage function network element.
  • the function storage function network element uniformly manages multiple administrative management areas including area 1 and area 2. Among them, area 1 and area 2 are two different administrative management areas, and they are located in the same data network (DN).
  • Area 1 includes one or more of mobility management network element 1, user plane network element 1, session management network element 1, unified data management network element 1, policy control network element 1, or billing network element 1;
  • area 2 includes One or more of the mobility management network element 2, the policy control network element 2, the billing network element 2, the unified data management network element 2, or the session management network element 2, the user plane network element 2.
  • the attribution ID of each network element in area 1 is the same, indicating that it belongs to area 1
  • the attribution ID of each network element in area 2 is the same, indicating that it belongs to area 2, and the attribution IDs of area 1 and area 2 are different.
  • User plane network element 1 in area 1 and user plane network element 2 in area 2 are connected to the same DN.
  • the mobility management network element is mainly used for mobility management in the mobile network, such as user location update, user registration network, user switching, and so on.
  • the unified data management network element is used to process user identification, access authentication, registration, or mobility management, etc.
  • Network function storage function network element used for service discovery, maintenance of network function configuration and service, etc.
  • the policy control network element is a unified policy framework used to guide network behavior, and provides policy rule information for the control plane function network element.
  • the charging network element is used to provide charging services to authorized network function network elements, supporting UE network access authentication, quota credit, etc.
  • Session management network elements are mainly used to interact with separate data planes, create, update, and delete protocol data unit (protocol data unit, PDU) sessions, and manage the session context (session context) with user plane network elements.
  • the user plane network element is used as an anchor point for mobility within or between RATs (radio access technology, RAT), and a conversation point for interconnection between external PDUs and data networks.
  • RAT radio access technology
  • the user plane network element is also used for packet routing and forwarding, data packet inspection, user plane policy and rule enforcement, such as gate control, redirection, traffic diversion, lawful interception, etc.
  • the above-mentioned mobility management network element may specifically be an access and mobility management function (AMF) network element in the 5G communication system, and the unified data management network element is specific It can be a unified data management (UDM) network element in a 5G communication system, and a network function storage function network element can specifically be a network function repository function (NRF) network element in a 5G communication system, session
  • the management network element may specifically be a session management network element in a 5G communication system, which may be a session management function (SMF) network element, and a policy control network element may specifically be a policy control function (policy control function) in a 5G communication system.
  • AMF access and mobility management function
  • unified data management network element is specific It can be a unified data management (UDM) network element in a 5G communication system
  • a network function storage function network element can specifically be a network function repository function (NRF) network element in a 5G communication system
  • session The management network element may specifically be a session management network
  • the charging network element may specifically be a charging function (CHF) network element in the 5G communication system
  • the user plane network element may specifically be a user plane function in the 5G communication system.
  • UPF charging function
  • the network elements in the network architecture shown in FIG. 1 may still use the names of the network elements in the above 5G communication system, or have other names. This embodiment of the application There is no restriction on this.
  • an embodiment of the present application provides a communication system 30.
  • the communication system 30 provided by the embodiment of the present application includes a network function storage function network element 301, a first unified data management network element 302 subscribed by a terminal device, and a mobility management network element 303 to which the terminal device accesses.
  • the network element or entity corresponding to the network function storage function network element 301 may be the network function storage function network element in the network architecture shown in FIG. 1, and the network element or entity corresponding to the above-mentioned first unified data management network element 302 may be Figure 1 shows the unified data management network element 1 or the unified data management network element 2 in the network architecture.
  • the mobility management network element 303 may be the mobility management network element 1 in the network architecture shown in FIG. 1, or may be the mobility management network element in the network architecture shown in FIG. Management network element 2; or, when the first unified data management network element is unified data management network element 2, mobility management network element 303 may be mobility management network element 1 in the network architecture shown in FIG. 1, or it may be FIG. The mobility management network element 2 in the shown network architecture.
  • any two of the network function storage function network element 301, the first unified data management network element 302, and the mobility management network element 303 can communicate directly between any two network elements, or can communicate through the forwarding of other devices. This embodiment of the application There is no specific restriction on this.
  • the network function storage function network element 301 is configured to receive the first identifier from the mobility management network element 303, and then after determining the first session management network element according to the first identifier, send the first session management network element to the mobility management network element 303
  • the identity of the yuan is used to identify the attribution of the terminal device, and the attribution identifier of the first session management network element is the same as the first identifier.
  • the first identifier is the attribution identifier of the first unified data management network element 302.
  • the network function storage function network element 301 is also used to send the home location identifier of the first unified data management network element 302 to the mobility management network element 303.
  • the first unified data management network element 302 is used to obtain the contract information of the terminal device and send the contract information to the mobility management network element 303, and the contract information is used to determine whether the service package subscribed by the terminal device is a preset service package.
  • the mobility management network element 303 is configured to receive the home location identifier of the first unified data management network element 302 from the network function storage function network element 301 and the contract information of the terminal equipment from the first unified data management network element 302, and to use it according to When the contract information of the terminal device determines that the service package subscribed by the terminal device is a preset service package, the home location identifier of the first unified data management network element 302 is sent to the network function storage function network element 301.
  • the mobility management network element 303 is further configured to receive the identifier of the first session management network element from the network function storage function network element 301.
  • the first identifier is the attribution identifier of the terminal device.
  • the first unified data management network element 302 obtains the contract information of the terminal device, and sends the contract information of the terminal device to the mobility management network element 303, where, when the service package signed by the terminal device is a preset service package, the contract information of the terminal device It contains the identification of the attribution of the terminal device.
  • the mobile management network element 303 is configured to receive the subscription information of the terminal device from the first unified data management network element, and when it is determined that the subscription information contains the home location identifier of the terminal device, send the terminal device's information to the network function storage function network element 301 Attribution ID.
  • the mobility management network element 303 is further configured to receive the identifier of the first session management network element from the network function storage function network element 301.
  • the first unified data management network element 302 can obtain the contract information of the terminal device and send the contract information of the terminal device to the mobility management network element 303
  • the mobility management network element 303 can receive information from the mobility management network element 303.
  • the mobile management network element 303 sends the first unified data management network element 302 to the network function storage function network element 301 when it is determined according to the contract information of the terminal device that the service package signed by the terminal device is a preset service package The identity of the attribution.
  • the network function storage function network element 301 when the network function storage function network element 301 receives the home location identifier of the first unified data management network element 302 from the mobility management network element 303, it means that the service package contracted by the terminal device is the preset service package, and the network function The storage function network element 301 can match the terminal device with the corresponding first session management network element according to the attribution identifier of the first unified data management network element 302, and then send the identification of the first session management network element to the mobility management network element 303 In this way, different session management network element discovery strategies can be provided for terminal devices that have subscribed to different service packages under the same DNN.
  • the first unified data management network element 302 can obtain the contract information of the terminal device, and send the contract information of the terminal device to the mobility management network element 303, where the service package contracted by the terminal device is a pre-
  • the subscription information of the terminal device includes the identification of the attribution of the terminal device. Therefore, when the mobility management network element 303 determines that the received subscription information of the terminal device contains the terminal device’s home location identifier, it means that the service package contracted by the terminal device is a preset service package.
  • the mobility management network element 303 can send The network function storage function network element 301 sends the attribution identification of the terminal equipment, and then when the network function storage function network element 301 receives the attribution identification of the terminal equipment from the mobility management network element 303, it can be based on the attribution identification of the terminal equipment , Match the corresponding first session management network element for the terminal device, and send the identification of the first session management network element to the mobility management network element 303, so as to provide different sessions for terminal devices that have signed up with different service packages under the same DNN Manage network element discovery strategies.
  • the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the communication system 30 shown in FIG. 3 may be applied to the current 5G network, or other networks in the future, such as a 6G network, etc.
  • the embodiment of the present application does not specifically limit this.
  • the network element or entity corresponding to the above-mentioned network function storage function network element may be the 5G network architecture shown in FIG. 2.
  • the network element or entity corresponding to the above-mentioned first unified data management network element may be UDM network element 1 or UDM network element 2 in the 5G network architecture shown in FIG. 2, and the above-mentioned mobility management network element corresponds to
  • the network element or entity may be the AMF network element 1 or the AMF network element 2 in the 5G network architecture shown in FIG. 2.
  • the related functions of the network function storage function network element, the first unified data management network element, or the mobility management network element in the embodiment of the present application can be implemented by one device, or can be implemented by multiple devices, or It is implemented by one or more functional modules in a device, which is not specifically limited in the embodiment of the present application. It is understandable that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or instantiated on a platform (for example, a cloud platform) Virtualization function.
  • a platform for example, a cloud platform
  • FIG. 4 is a schematic structural diagram of a communication device 40 provided by an embodiment of the application.
  • the communication device 40 includes one or more processors 401, a communication line 402, and at least one communication interface (in FIG. 4, the communication interface 404 and one processor 401 are taken as an example for illustration), optional
  • the memory 403 may also be included.
  • the processor 401 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs used to control the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 402 may include a path for connecting different components.
  • the communication interface 404 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and so on.
  • the transceiver module may be a device such as a transceiver or a transceiver.
  • the communication interface 404 may also be a transceiver circuit located in the processor 401 to implement signal input and signal output of the processor.
  • the memory 403 may be a device having a storage function.
  • it can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • Dynamic storage devices can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage ( Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer Any other media taken, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 402. The memory can also be integrated with the processor.
  • the memory 403 is used to store computer execution instructions for executing the solution of the present application, and the processor 401 controls the execution.
  • the processor 401 is configured to execute computer-executable instructions stored in the memory 403, so as to implement the session management network element discovery method provided in the embodiment of the present application.
  • the processor 401 may also perform processing related functions in the method for discovering a session management network element provided in the following embodiments of the present application.
  • the communication interface 404 is responsible for communicating with other devices or communication networks. The application embodiment does not specifically limit this.
  • the computer execution instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4.
  • the communication device 40 may include multiple processors, such as the processor 401 and the processor 407 in FIG. 4. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication apparatus 40 may further include an output device 405 and an input device 406.
  • the output device 405 communicates with the processor 401 and can display information in a variety of ways.
  • the communication system shown in Figure 3 is applied to the 5G network architecture shown in Figure 2.
  • the network function storage function network element is the NRF network element
  • the first unified data management network element is UDM network element 2
  • the mobility management network element is AMF Take the network element 1 as an example.
  • the method for discovering a session management network element provided in an embodiment of this application includes the following steps:
  • the SMF network element sends a registration message to the NRF network element; the NRF network element receives the registration message from the SMF network element.
  • the SMF network elements include SMF network element 1 and SMF network element 2, and the registration message is also called the second message.
  • the registration message carries the home location identifier of the SMF network element, and the registration message is used to register the SMF network element to the NRF network element.
  • the home identity of the SMF network element may be specifically included in the network function profile (NF profile) of the SMF network element.
  • the SMF network element can add the home location identifier of the SMF network element to the network function configuration information of the SMF network element, and send the SMF to the NRF network element by carrying the network function configuration information of the SMF network element in the registration message The identity of the home location of the network element.
  • the NRF network element can save the network function configuration information of the SMF network element, so as to determine the home identity of the SMF network element, the identity of the SMF network element, and the network function configuration information of the SMF network element. Other relevant information of the SMF network element.
  • the home location identifier of the SMF network element may be configured in a reserved field in the existing network function configuration information.
  • the home location identification of the SMF network element can be defined by extending the optional attributes in the NF profile.
  • the optional attributes in the NF profile can be extended in the form shown in Table 1 to identify the home location of the SMF network elements.
  • Table 1 the attribute name (x-servingScope) option is used to indicate the name of the attribute, and the data type option is used to indicate the data type of the attribute.
  • the /Required attribute option is used to indicate that the attribute is optional or required
  • the value option is used to indicate the specific value of the attribute (different values indicate different attributions)
  • the description option is used to describe the attribute Function.
  • the UDM network element 2 sends a registration message to the NRF network element; the NRF network element receives the registration message from the UDM network element 2.
  • the registration message may also be referred to as the first message.
  • the registration message carries the home location identifier of the UDM network element 2, and the registration message is used to register the UDM network element 2 to the NRF network element.
  • the home location identifier of the UDM network element 2 may be specifically included in the network function configuration information of the UDM network element 2. Similar to SMF network element, UDM network element 2 can also be added to the network function configuration information of UDM network element 2 by adding the attribution of UDM network element 2 to the network function configuration information of UDM network element 2, and by carrying the network function of UDM network element 2 in the registration message The configuration information is sent to the NRF network element with the home location identifier of the UDM network element 2. Further, after receiving the registration message, the NRF network element can save the network function configuration information of UDM network element 2, so as to determine the home location identifier of UDM network element 2 and UDM network element 2 according to the network function configuration information of UDM network element 2. , And other related information of UDM network element 2.
  • the session management network element discovery method may further include the following steps S503-S509:
  • the AMF network element 1 sends a UDM discovery request message to the NRF network element, and the NRF network element receives the UDM discovery request message from the AMF network element 1.
  • the UDM discovery request message carries the user identification of the terminal device.
  • the user identifier of the terminal device is used to identify the terminal device, and the user identifier may be, for example, a subscriber permanent identifier (SUPI) of the terminal device, etc., which is not specifically limited in the embodiment of the present application.
  • SUPI subscriber permanent identifier
  • the NRF network element determines the UDM network element (UDM network element 2 in the embodiment of the present application) contracted by the terminal device.
  • the NRF network element may determine the UDM network element subscribed by the terminal device according to the user identifier of the terminal device, such as the SUPI of the terminal device, which is not specifically limited in the embodiment of the present application.
  • the NRF network element sends the home location identifier of the UDM network element 2 to the AMF network element 1; the AMF network element 1 receives the home location identifier of the UDM network element 2 from the NRF network element.
  • step S505 may specifically include: the NRF network element may send a notification to the AMF The network element 1 sends the network function configuration information of the UDM network element 2; the AMF network element 1 receives the network function configuration information of the UDM network element 2 from the NRF network element. In this way, the AMF network element 1 can obtain the home location identifier of the UDM network element 2 by reading the corresponding field of the received network function configuration information of the UDM network element 2.
  • AMF network element 1 sends a service request message to UDM network element 2; UDM network element 2 receives the service request message from AMF network element 1. Among them, the service request message requests to obtain SMF selection subscription information (smf selection subscription data).
  • the UDM network element 2 obtains the contract information of the terminal device.
  • UDM network element 2 sends SMF selection and subscription information to AMF network element 1; AMF network element 1 receives SMF selection and subscription information from UDM network element 2.
  • the SMF selection contract information includes the contract information of the terminal device.
  • the SMF selection contract information does not include the contract information of the terminal device.
  • the SMF selection contract information is extended, so that the SMF selection contract information includes the terminal equipment contract information.
  • the AMF network element 1 receives the SMF selection contract information, it can sign according to the terminal equipment in it.
  • the information determines whether the service package contracted by the terminal device is a preset service package (that is, step S509).
  • the AMF network element 1 determines whether the service package signed by the terminal device is a preset service package.
  • the AMF network element 1 can determine whether the service package signed by the terminal device is a preset service package according to the contract information of the terminal device included in the SMF selection contract information.
  • the preset service package refers to the specific service package that needs to discover the home SMF network element in advance, such as the specific package of the eMBB service.
  • the preset service package can be determined according to the specific deployment requirements of the operator's service package, which is not specifically limited in the embodiment of the present application.
  • the AMF network element 1 can determine the service package signed by the terminal device according to the charging characteristics in the terminal device subscription information Whether it is a preset service package is not specifically limited in the embodiment of the application.
  • the session management network element discovery method provided in the embodiment of the present application can be further Including the following steps S510a-S512a:
  • the AMF network element 1 sends an SMF discovery request message to the NRF network element; the NRF network element receives the SMF discovery request message from the AMF network element 1.
  • the SMF discovery request message carries the home location identifier of UDM network element 2.
  • the NRF network element determines the SMF network element 2 according to the home location identifier of the UDM network element 2.
  • the SMF discovery request message in step S511a also carries standard SMF discovery parameters, such as DNN, single network slice selection assistance information (S-NSSAI), and tracking area identification ( Tracking area identity, TAI), etc.
  • S-NSSAI single network slice selection assistance information
  • TAI tracking area identification
  • NRF network elements use standard SMF discovery parameters as optional parameters, and the home location identifier of UDM network element 2 as a required parameter to match the corresponding SMF network element for the terminal device. This is the case in the embodiment of this application. There is no specific limitation.
  • the SMF network element 2 is also called the first session management network element, and the home location identifier of the SMF network element 2 is the same as the home location identifier of the UDM network element 2. Since both the SMF network element 2 and the UDM network element 2 belong to area 2, the SMF network element 2 and the UDM network element 2 have the same home location identifier. In this way, when the NRF network element matches the SMF network element for the terminal device according to the home location of the UDM network element 2, it can be matched to the SMF network element 2 in the area 2.
  • the NRF network element sends the identity of the SMF network element 2 to the AMF network element 1; the AMF network element 1 receives the identity of the SMF network element 2 from the NRF network element.
  • the AMF network element 1 may initiate a session establishment process through the SMF network element 2 according to the received identifier of the SMF network element 2 to provide services to the terminal device.
  • the session management network element discovery method provided in the embodiment of the present application It may further include the following steps S510b-S512b:
  • the AMF network element 1 sends an SMF discovery request message to the NRF network element; the NRF network element receives the SMF discovery request message from the AMF network element 1.
  • the SMF discovery request message carries standard SMF discovery parameters, such as DNN, S-NSSAI, TAI, etc., which are not specifically limited in the embodiment of the present application.
  • the NRF network element selects the SMF network element for the terminal device.
  • the NRF network element can select the SMF network element for the terminal device according to the standard SMF discovery parameters. Further, since the NRF network element selects according to the standard SMF discovery parameters, the terminal device will be matched to the SMF network element 1 in the area 1.
  • the NRF network element sends the identity of the SMF network element 1 to the AMF network element 1; the AMF network element 1 receives the identity of the SMF network element 1 from the NRF network element.
  • the AMF network element 1 may initiate a session establishment process through the SMF network element 1 according to the received identifier of the SMF network element 1 to provide services to the terminal device.
  • steps S510b-S512b can refer to the prior art, which will not be repeated here.
  • UDM network element 2 can obtain the contract information of the terminal device and send the contract information of the terminal device to AMF network element 1, AMF network element 1 can receive the contract information of the terminal device from AMF network element 1.
  • AMF network element 1 determines that the service package signed by the terminal device is a preset service package according to the contract information of the terminal device, it sends the home location identifier of the UDM network element 2 to the NRF network element.
  • the NRF network element receives the home location identifier of the UDM network element 2 from the AMF network element 1, it means that the service package contracted by the terminal device is the preset service package.
  • the NRF network element can be based on the UDM network element 2’s
  • the home location identifier matches the corresponding SMF network element for the terminal device, and then sends the determined SMF network element identifier to AMF network element 1, so as to provide different session management for terminal devices that have subscribed to different service packages under the same DNN Network element discovery strategy. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the contract information of the terminal device is not changed in the embodiment of the application, the original contract information can be retained when the solution of the embodiment of the application is adopted, without requiring the user to re-sign.
  • the service package of the 4G network can continue to be used, and there is no need for users to re-sign a new service package.
  • the actions of the NRF network element, UDM network element 2 or SMF network element 2 in the above steps S501 to S512a or steps S501 to S512b can be called by the processor 401 in the communication device 400 shown in FIG.
  • the application code is executed, and this embodiment does not impose any restriction on this.
  • the communication system shown in Figure 3 is applied to the 5G network architecture shown in Figure 2, the network function storage function network element is the NRF network element, the first unified data management network element is the UDM network element 2, and the mobility management network element Taking the AMF network element 1 as an example, as shown in FIG. 6, another session management network element discovery method provided in this embodiment of the application includes the following steps:
  • step S601 is the same as step S501.
  • step S501 For related description, please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • S602-603 are the same as steps S503-S504.
  • steps S503-S504. please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the NRF network element sends the network function configuration information of the UDM network element 2 to the AMF network element 1.
  • the AMF network element 1 receives the network function configuration information of the UDM network element 2 from the NRF network element.
  • the network function configuration information of the UDM network element 2 in step S604 does not include the home location identifier of the UDM network element 2.
  • step S605 is the same as step S506.
  • step S506 For related description, please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the UDM network element 2 obtains the contract information of the terminal device.
  • the subscription information of the terminal device includes the home location identifier of the terminal device.
  • the subscription information of the terminal device does not include the attribution identifier of the terminal device.
  • the UDM network element 2 sends the contract information of the terminal device to the AMF network element 1; the AMF network element 1 receives the contract information of the terminal device from the UDM network element 2.
  • UDM network element 2 may include the terminal equipment’s subscription information in the SMF selection subscription information, and send the SMF selection subscription information to AMF network element 1, so that AMF network element 1 may receive SMF from UDM network element 2.
  • the contract information is selected to obtain the contract information of the terminal device, which is not specifically limited in the embodiment of this application.
  • the AMF network element 1 determines whether the subscription information of the terminal device includes the home location identifier of the terminal device.
  • the AMF network element 1 determines that the subscription information of the terminal device includes the home location identifier of the terminal device, it means that the service package subscribed by the terminal device is a preset service package.
  • the AMF network element 1 determines that the subscription information of the terminal device does not include the home location identifier of the terminal device, it means that the service package subscribed by the terminal device is not a preset service package.
  • the session management network element discovery method provided in the embodiment of the present application also Including the following steps S609a-S611a:
  • the AMF network element 1 sends an SMF discovery request message to the NRF network element; the NRF network element receives the SMF discovery request message from the AMF network element 1.
  • the SMF discovery request message carries the home location identifier of the terminal device.
  • the NRF network element determines the SMF network element 2 according to the home location identifier of the terminal device.
  • the SMF discovery request message also carries standard SMF discovery parameters, such as DNN, S-NSSAI, TAI, etc.
  • the NRF network element uses standard SMF discovery parameters as optional parameters, and the home location of the terminal device is a mandatory parameter, which is the terminal The device matches the corresponding SMF network element, which is not specifically limited in the embodiment of this application.
  • the NRF network element sends the identity of the SMF network element 2 to the AMF network element 1; the AMF network element 1 receives the identity of the SMF network element 2 from the NRF network element.
  • the AMF network element 1 may initiate a session establishment process through the SMF network element 2 according to the received identifier of the SMF network element 2 to provide services to the terminal device.
  • the session management network element provided in the embodiment of the present application
  • the discovered method also includes the following steps S609b-S611b:
  • S609b-S611b are the same as steps S510b-S512b.
  • steps S510b-S512b please refer to the embodiment shown in FIG. 5, which will not be repeated here.
  • the UDM network element 2 can obtain the contract information of the terminal device, and send the contract information of the terminal device to the AMF network element 1, where, when the service package signed by the terminal device is a preset service package, the terminal device
  • the subscription information contains the identification of the attribution of the terminal device. Therefore, when the AMF network element 1 determines that the received contract information of the terminal device includes the home location identifier of the terminal device, it means that the service package contracted by the terminal device is a preset service package.
  • the AMF network element 1 can send to the NRF network The element sends the home location identification of the terminal device, and then when the NRF network element receives the home location identification of the terminal device from the AMF network element 1, it can match the terminal device with the corresponding SMF network element according to the home location identification of the terminal device, And send the SMF network element identifier to the AMF network element 1, so as to realize that different session management network element discovery strategies are provided for terminal devices that have subscribed to different service packages under the same DNN. That is, the embodiments of the present application can provide terminal devices with different session management network element discovery strategies according to different service packages signed by the terminal devices. This avoids the problem that in the prior art, for terminal devices that have subscribed to different service packages under the same DNN, the SMF network element discovery strategy adopted when the session is activated is the same.
  • the actions of the NRF network element, UDM network element 2 or SMF network element 2 in the above steps S601 to S611a or steps S601 to S611b can be called by the processor 401 in the communication device 400 shown in FIG.
  • the application code is executed, and this embodiment does not impose any restriction on this.
  • the methods and/or steps implemented by the network function storage function network element can also be implemented by components that can be used for the network function storage function network element; implemented by the first unified data management network element
  • an embodiment of the present application also provides a communication device.
  • the communication device may be the network function storage function network element in the foregoing method embodiment, or a device including the network function storage function network element described above, or may be used for network function storage. Components of functional network elements.
  • the communication device may be the first unified data management network element in the foregoing method embodiment, or a device including the foregoing first unified data management network element, or a component that can be used for the first unified data management network element.
  • the communication device may be the mobility management network element in the foregoing method embodiment, or a device including the foregoing mobility management network element, or a component that can be used for the mobility management network element.
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • FIG. 7 shows a schematic structural diagram of a network function storage function network element 70.
  • the network function storage function network element 70 includes a transceiver module 701 and a processing module 702.
  • the transceiver module 701 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.
  • the transceiver module 701 is configured to receive a first identifier from a mobility management network element, the first identifier is used to identify the attribution of the terminal device; the processing module 702 is configured to determine the first session management network element according to the first identifier, The attribution identifier of the first session management network element is the same as the first identifier; the transceiver module 701 is further configured to send the identifier of the first session management network element to the mobility management network element.
  • the first identifier is the attribution identifier of the first unified data management network element, and the first unified data management network element is the unified data management network element subscribed by the terminal device; or, the first identifier is the attribution identifier of the terminal device .
  • the first identifier is the attribution identifier of the first unified data management network element; the transceiver module 701 is further configured to send the attribution identifier of the first unified data management network element to the mobility management network element.
  • the transceiver module 701 is configured to send the home location identifier of the first unified data management network element to the mobility management network element, including: sending the network function configuration information of the first unified data management network element to the mobility management network element, and the network The function configuration information includes the home location identifier of the first unified data management network element.
  • the transceiver module 701 is further configured to receive a first message from the first unified data management network element, where the first message carries the home location identifier of the first unified data management network element, and the first message is used to transfer The first unified data management network element is registered to the network function storage function network element 70.
  • the transceiver module 701 is further configured to receive a second message from the first session management network element, the second message carries the home location identifier of the first session management network element, and the second message is used to transfer the first session management network element
  • the session management network element is registered to the network function storage function network element 70.
  • the home location identifier of the first session management network element is included in the network function configuration information of the first session management network element.
  • the network function storage function network element 70 is presented in the form of dividing various function modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the network function storage function network element 70 may adopt the form of the communication device 40 shown in FIG. 4.
  • the processor 401 in the communication device 40 shown in FIG. 4 may invoke the computer-executed instructions stored in the memory 403, so that the communication device 40 executes the session management network element discovery method in the foregoing method embodiment.
  • the function/implementation process of the processing module 702 and the transceiver module 701 in FIG. 7 may be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403.
  • the function/implementation process of the processing module 702 in FIG. 7 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403, and the function of the transceiver module 701 in FIG. 7 /The realization process can be realized through the communication interface 404 in the communication device 40 shown in FIG. 4.
  • the network function storage function network element 70 provided in this embodiment can execute the above-mentioned session management network element discovery method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • FIG. 8 shows a schematic structural diagram of a first unified data management network element 80.
  • the first unified data management network element 80 includes a processing module 801 and a transceiver module 802.
  • the transceiver module 802 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the processing module 801 is configured to obtain contract information of the terminal device, and the contract information is used to determine whether the service package subscribed by the terminal device is a preset service package.
  • the transceiver module 802 is configured to send the subscription information to the mobility management network element.
  • the transceiver module 802 is further configured to send a first message to the network function storage function network element, the first message carrying the home location identifier of the first unified data management network element, and the first message is used to send the first message to the network element of the network function storage function.
  • a unified data management network element is registered to the network function storage function network element.
  • the processing module 801 is configured to obtain the subscription information of the terminal device, where, when the service package signed by the terminal device is a preset service package, the subscription information includes the attribution of the terminal device.
  • the home location identification of the terminal device is used to determine the first session management network element, and the home location identification of the first session management network element is the same as that of the terminal device.
  • the transceiver module 802 is also used to send the subscription information to the mobility management network element.
  • the first unified data management network element 80 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the first unified data management network element 80 may adopt the form of the communication device 40 shown in FIG. 4.
  • the processor 401 in the communication device 40 shown in FIG. 4 may invoke the computer-executed instructions stored in the memory 403, so that the communication device 40 executes the session management network element discovery method in the foregoing method embodiment.
  • the function/implementation process of the processing module 801 and the transceiver module 802 in FIG. 8 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 403.
  • the function/implementation process of the processing module 801 in FIG. 8 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403, and the function of the transceiver module 802 in FIG. 8 /The realization process can be realized through the communication interface 404 in the communication device 40 shown in FIG. 4.
  • the first unified data management network element 80 provided in this embodiment can perform the above-mentioned session management network element discovery method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • FIG. 9 shows a schematic structural diagram of a mobility management network element 90.
  • the mobility management network element 90 includes a transceiver module 901 and a processing module 902.
  • the transceiver module 901 may also be referred to as a transceiver unit to implement a transceiver function, for example, it may be a transceiver circuit, a transceiver, a transceiver or a communication interface.
  • the transceiver module 901 is used to receive the attribution identification of the first unified data management network element from the network function storage function network element; the transceiver module 901 is also used to receive the first unified data management The contract information of the terminal device of the network element; the processing module 902 is used to determine the service package signed by the terminal device is the preset service package according to the contract information; the transceiver module 901 is also used to send the first unified data to the network function storage function network element
  • the attribution identifier of the management network element, the attribution identifier of the first unified data management network element is used to determine the first session management network element, and the attribution identifiers of the first session management network element and the first unified data management network element are the same;
  • the module 901 is further configured to receive the identifier of the first session management network element from the network function storage function network element.
  • the transceiver module 901 configured to receive the home location identifier of the first unified data management network element from the network function storage function network element includes: receiving the network of the first unified data management network element from the network function storage function network element Function configuration information.
  • the network function configuration information includes the home location identifier of the first unified data management network element.
  • the transceiver module 901 is configured to receive the subscription information of the terminal device from the first unified data management network element, and the first unified data management network element is the data management network element subscribed by the terminal device.
  • the processing module 902 is used to determine the attribution identification of the terminal equipment contained in the subscription information; the transceiver module 901 is also used to send the attribution identification of the terminal equipment to the network function storage function network element, and the attribution identification of the terminal equipment is used to determine The first session management network element, where the attribution identifier of the first session management network element is the same as the attribution identifier of the unified data management network element; the transceiver module 901 is also used to receive the first session management from the network function storage function network element The identity of the network element.
  • the mobility management network element 90 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the mobility management network element 90 may adopt the form of the communication device 40 shown in FIG. 4.
  • the processor 401 in the communication device 40 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 403 to enable the communication device 40 to execute the session management network element discovery method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 902 and the transceiver module 901 in FIG. 9 may be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling the computer execution instructions stored in the memory 403.
  • the function/implementation process of the processing module 902 in FIG. 9 can be implemented by the processor 401 in the communication device 40 shown in FIG. 4 calling a computer execution instruction stored in the memory 403, and the function of the transceiver module 901 in FIG. 9 /The realization process can be realized through the communication interface 404 in the communication device 40 shown in FIG. 4.
  • the mobility management network element 90 provided in this embodiment can perform the above-mentioned session management network element discovery method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • one or more of the above modules or units can be implemented by software, hardware or a combination of both.
  • the software exists in the form of computer program instructions and is stored in the memory, and the processor can be used to execute the program instructions and implement the above method flow.
  • the processor can be built in SoC (system on chip) or ASIC, or it can be an independent semiconductor chip.
  • SoC system on chip
  • ASIC application specific integrated circuit
  • the processor's internal processing is used to execute software instructions to perform calculations or processing, and may further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (programmable logic device) , Or a logic circuit that implements dedicated logic operations.
  • FPGA field programmable gate array
  • PLD programmable logic device
  • the hardware can be a CPU, a microprocessor, a digital signal processing (digital signal processing, DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • DSP digital signal processing
  • MCU microcontroller unit
  • an artificial intelligence processor an ASIC
  • Any one or any combination of SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device can run necessary software or do not rely on software to perform the above method flow.
  • an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the method in any of the foregoing method embodiments.
  • the communication device further includes a memory.
  • the memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments.
  • the memory may not be in the communication device.
  • the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as servers, data centers, etc. that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

本申请实施例提供的会话管理网元发现的方法、设备及系统，涉及通信领域，能够为签约了相同DNN下不同业务套餐的终端设备提供差异化的会话管理网元发现策略。具体包括：网络功能存储功能网元接收来自移动管理网元的第一标识，该第一标识用于标识终端设备的归属地；网络功能存储功能网元根据第一标识，确定第一会话管理网元，其中，第一会话管理网元的归属地标识与第一标识相同；网络功能存储功能网元向移动管理网元发送第一会话管理网元的标识。本申请用于发现会话管理网元。

Description

会话管理网元发现的方法、设备及系统
本申请要求于2019年12月11日提交国家知识产权局、申请号为201911269444.4、申请名称为“会话管理网元发现的方法、设备及系统”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，尤其涉及会话管理网元发现的方法、设备及系统。
背景技术
目前，在第五代(the 5th，5G)网络中，部分运营商在运营规划业务套餐时，对于数据网络名称(data network name，DNN)相同的不同业务套餐，期望可以采用不同的会话管理功能(session management funcion，SMF)网元发现策略。举例来说，比如增强移动宽带(enhanced mobile broadband，eMBB)业务的通用套餐和特定套餐，两种业务套餐的DNN相同(均为eMBB业务)，但在跨区接入场景下，运营商可能希望签约了eMBB业务的通用套餐的终端设备选择拜访地SMF网元进行业务；而签约了eMBB业务的特定业务套餐的终端设备选择归属地SMF网元进行业务。
然而，现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的，因而现有技术无法满足运营商的业务套餐部署需求。
发明内容
本申请实施例提供会话管理网元发现的方法、设备及系统，能够为签约了相同DNN下不同业务套餐的终端设备提供差异化的会话管理网元发现策略。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供了一种会话管理网元发现的方法，该方法包括：网络功能存储功能网元接收来自移动管理网元的第一标识，该第一标识用于标识终端设备的归属地；网络功能存储功能网元根据第一标识，确定第一会话管理网元，其中，第一会话管理网元的归属地标识与第一标识相同；网络功能存储功能网元向移动管理网元发送第一会话管理网元的标识。由于本申请实施例中，网络功能存储功能网元所接收的第一标识是移动管理网元在确定终端设备签约的业务套餐为预设业务套餐时，向网络功能存储功能网元发送的。或者，网络功能存储功能网元所接收的第一标识是移动管理网元确定终端设备的签约信息中包含终端设备的归属地标识时，向网络功能存储功能网元发送的，并且当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中才会包含终端设备的归属地标识。因此，当网络功能存储功能网元接收到来自移动管理网元的第一标识，即说明终端设备签约的业务套餐为预设业务套餐，此时，网络功能存储功能网元即可根据标识终端设备的归属地的该第一标识，为终端设备匹配对应的第一会话管理网元，进而向移动管理网元发送第一会话管理网元的标识，从而可以为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的 会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
在一种可能的设计中，第一标识为第一统一数据管理网元的归属地标识，第一统一数据管理网元为终端设备签约的统一数据管理网元；或者，第一标识为终端设备的归属地标识。
在一种可能的设计中，当第一标识为第一统一数据管理网元的归属地标识时，该方法还包括：网络功能存储功能网元向移动管理网元发送第一统一数据管理网元的归属地标识。
在一种可能的设计中，网络功能存储功能网元向移动管理网元发送第一统一数据管理网元的归属地标识包括：网络功能存储功能网元向移动管理网元发送第一统一数据管理网元的网络功能配置信息，该网络功能配置信息中包含第一统一数据管理网元的归属地标识。基于该方案，移动管理网元可以根据第一统一数据管理网元的网络功能配置信息获取第一统一数据管理网元的归属地标识。
在一种可能的设计中，该方法还包括：网络功能存储功能网元接收来自第一统一数据管理网元的第一消息，第一消息中携带第一统一数据管理网元的归属地标识，其中，第一消息用于将第一统一数据管理网元注册到网络功能存储功能网元。基于该方案，网络功能存储功能网元可以通过该第一消息获取第一统一数据管理网元的归属地标识。
在一种可能的设计中，该方法还包括：网络功能存储功能网元接收来自第一会话管理网元的第二消息，第二消息中携带第一会话管理网元的归属地标识，其中，第二消息用于将第一会话管理网元注册到网络功能存储功能网元。基于该方案，网络功能存储功能网元可以通过该第二消息获取第一会话管理网元的归属地标识。
在一种可能的设计中，第一会话管理网元的归属地标识包含在第一会话管理网元的网络功能配置信息中。基于该方案，通过第一会话管理网元的网络功能配置信息即可得到第一会话管理网元的归属地标识。
第二方面，提供了一种会话管理网元发现的方法，该方法包括：第一统一数据管理网元获取终端设备的签约信息，该签约信息用于确定终端设备签约的业务套餐是否为预设业务套餐，该第一统一数据管理网元为终端设备签约的统一数据管理网元；第一统一数据管理网元向移动管理网元发送该签约信息。由于本申请实施例中，第一统一数据管理网元可以获取终端设备的签约信息，并向移动管理网元发送终端设备的签约信息，因此移动管理网元可以接收来自移动管理网元的终端设备的签约信息，进而根据终端设备的签约信息确定终端设备签约的业务套餐为预设业务套餐时，向网络功能存储功能网元发送第一统一数据管理网元的归属地标识。这样，当网络功能存储功能网元接收到来自移动管理网元的第一统一数据管理网元的归属地标识时，即可根据第一统一数据管理网元的归属地标识，为终端设备匹配对应的第一会话管理网元，并向移动管理网元发送第一会话管理网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活 时，采用的SMF网元的发现策略是相同的问题。
在一种可能的设计中，该方法还包括：第一统一数据管理网元向网络功能存储功能网元发送第一消息，该第一消息中携带统一数据管理网元的归属地标识，其中，第一消息用于将统一数据管理网元注册到网络功能存储功能网元。基于该方案，网络功能存储功能网元可以通过该第一消息获取第一统一数据管理网元的归属地标识。
第三方面，提供了一种会话管理网元发现的方法，该方法包括：移动管理网元接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，第一统一数据管理网元为终端设备签约的统一数据管理网元；移动管理网元接收来自第一统一数据管理网元的终端设备的签约信息；当移动管理网元根据签约信息确定终端设备签约的业务套餐为预设业务套餐时，移动管理网元向网络功能存储功能网元发送第一统一数据管理网元的归属地标识，第一统一数据管理网元的归属地标识用于确定第一会话管理网元，第一会话管理网元和第一统一数据管理网元的归属地标识相同；移动管理网元接收来自网络功能存储功能网元的第一会话管理网元的标识。由于本申请实施例中，移动管理网元可以接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识以及来自第一统一数据管理网元的终端设备的签约信息，并根据终端设备的签约信息确定终端设备签约的业务套餐为预设业务套餐时，向网络功能存储功能网元发送第一统一数据管理网元的归属地标识。因此，网络功能存储功能网元可以接收来自移动管理网元的第一统一数据管理网元的归属地标识，进而根据第一统一数据管理网元的归属地标识，为终端设备匹配对应的第一会话管理网元，并向移动管理网元发送第一会话管理网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
在一种可能的设计中，移动管理网元接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，包括：移动管理网元接收来自网络功能存储功能网元的第一统一数据管理网元的网络功能配置信息，该网络功能配置信息中包含第一统一数据管理网元的归属地标识。基于该方案，移动管理网元可以通过第一统一数据管理网元的网络功能配置信息获取第一统一数据管理网元的归属地标识。
第四方面，提供了一种会话管理网元发现的方法，该方法包括：第一统一数据管理网元获取终端设备的签约信息，第一统一数据管理网元为终端设备签约的数据管理网元；其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识；终端设备的归属地标识用于确定第一会话管理网元，第一会话管理网元与终端设备的归属地标识相同；第一统一数据管理网元向移动管理网元发送签约信息。由于本申请实施例中，第一统一数据管理网元可以获取终端设备的签约信息，并向移动管理网元发送终端设备的签约信息，其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识。因此，当移动管理网元确定所接收的终端设备的签约信息中包含终端设备的归属地标识时，即说明终端设备签约的业务套餐为预设业务套餐，此时移动管理网元可以向网络功能 存储功能网元发送终端设备的归属地标识，进而当网络功能存储功能网元接收到来自移动管理网元的终端设备的归属地标识时，即可根据终端设备的归属地标识，为终端设备匹配对应的第一会话管理网元，并向移动管理网元发送第一会话管理网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
第五方面，提供了一种会话管理网元发现的方法，该方法包括：移动管理网元接收来自第一统一数据管理网元的终端设备的签约信息，第一统一数据管理网元为终端设备签约的数据管理网元；当移动管理网元确定签约信息中包含终端设备的归属地标识时，移动管理网元向网络功能存储功能网元发送终端设备的归属地标识，终端设备的归属地标识用于确定第一会话管理网元，其中第一会话管理网元的归属地标识与统一数据管理网元的归属地标识相同；移动管理网元接收来自网络功能存储功能网元的第一会话管理网元的标识。由于本申请实施例中，移动管理网元可以接收来自第一统一数据管理网元的终端设备的签约信息，并且当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识，因此，当移动管理网元确定签约信息中包含终端设备的归属地标识时，即表示终端设备签约的业务套餐为预设业务套餐。此时，移动管理网元向网络功能存储功能网元发送终端设备的归属地标识，进而网络功能存储功能网元可以接收来自移动管理网元的终端设备的归属地标识，并根据终端设备的归属地标识，为终端设备匹配对应的第一会话管理网元，向移动管理网元发送第一会话管理网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
第六方面，提供了一种通信装置用于实现上述各种方法。该通信装置包括实现上述方法相应的模块、单元、或手段(means)，该模块、单元、或means可以通过硬件实现，软件实现，或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块或单元。
第七方面，提供了一种通信装置，包括：处理器和接口电路，接口电路用于接收来自通信装置之外的其它通信装置的信号并传输至处理器或将来自处理器的信号发送给通信装置之外的其它通信装置，处理器通过逻辑电路或执行代码指令用于实现上述任一方面的方法。
在一种可能的设计中，该通信装置还包括存储器。该存储器用于存储计算机指令，当处理器执行该指令时，以使该通信装置执行上述任一方面所述的方法。
第八方面，提供了一种通信装置，包括：处理器；该处理器用于与存储器耦合，并读取存储器中的指令之后，根据该指令执行如上述任一方面所述的方法。
在一种可能的设计中，该通信装置还包括存储器，该存储器，用于保存必要的程序指令和数据。该通信装置是芯片系统时，可以由芯片构成，也可以包含芯片和其他 分立器件。
结合上述第六方面或第七方面或第八方面，在一种可能的设计中，该通信装置可以为上述第一方面中的网络功能存储功能网元，或者可用于上述第一方面中的网络功能存储功能网元的芯片或者芯片系统，或者包含上述网络功能存储功能网元的装置；或者，该通信装置可以为上述第二方面或第四方面中的第一统一数据管理网元，或者可用于上述第二方面或第四方面中的第一统一数据管理网元的芯片或者芯片系统，或者包含上述第一统一数据管理网元的装置；或者，该通信装置可以为上述第三方面或第五方面中的移动管理网元，或者可用于上述第三方面或第五方面中的移动管理网元的芯片或者芯片系统，或者包含上述移动管理网元的装置。
第九方面，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，当其在计算机上运行时，使得计算机可以执行上述任一方面所述的方法。
第十方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行上述任一方面所述的方法。
第十一方面，提供了一种通信系统，该通信系统包括上述第一方面中的网络功能存储功能网元、第二方面中的第一统一数据管理网元以及第三方面中的移动管理网元；或者，该通信系统包括上述第一方面中的网络功能存储功能网元、第四方面中的第一统一数据管理网元以及第五方面中的移动管理网元。
其中，第六方面至第十一方面中任一种设计方式所带来的技术效果可参见上述第一方面或第二方面或第三方面或第四方面或第五方面中不同设计方式所带来的技术效果，此处不再赘述。
附图说明
图1为本申请实施例提供的一种网络架构示意图；
图2为本申请实施例提供的一种5G网络架构示意图；
图3为本申请实施例提供的一种通信系统的结构示意图；
图4为本申请实施例提供的一种通信设备的结构示意图；
图5为本申请实施例提供的一种会话管理网元发现的方法的流程示意图；
图6为本申请实施例提供的另一种会话管理网元发现的方法的流程示意图；
图7为本申请实施例提供的一种网络功能存储功能网元的结构示意图；
图8为本申请实施例提供的一种第一统一数据管理网元的结构示意图；
图9为本申请实施例提供的一种移动管理网元的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“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，其中A,B可以是单数或者复数。并且，在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b， c可以是单个，也可以是多个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。同时，在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。
此外，在本申请实施例中，每个网元或终端设备只归属于一个行政管理区域，并使用“归属地”表示网元或终端设备所归属的行政管理区域，使用“归属地标识”标识网元或终端设备的归属地。
如图1所示，为本申请实施例适用的一种可能的网络架构示意图。该网络架构可以包括移动管理网元、统一数据管理网元、策略控制网元、计费网元、会话管理网元、用户面网元或者网络功能存储功能网元中的一个或多个，网络功能存储功能网元统一管理包括区域1和区域2在内的多个行政管理区域。其中，区域1和区域2是两个不同的行政管理区域，且位于同一个数据网络(data network，DN)中。区域1包括移动管理网元1、用户面网元1、会话管理网元1、统一数据管理网元1、策略控制网元1、或者计费网元1中的一个或多个；区域2包括移动管理网元2、策略控制网元2、计费网元2、统一数据管理网元2、或者会话管理网元2、用户面网元2中的一个或多个。其中，区域1中各网元的归属地标识相同，表示归属于区域1；区域2中各网元的归属地标识相同，表示归属于区域2，区域1和区域2的归属地标识不同。区域1中的用户面网元1和区域2中的用户面网元2连接至同一个DN。
其中，移动管理网元，主要用于移动网络中的移动性管理，如用户位置更新、用户注册网络、用户切换等。统一数据管理网元，用于处理用户标识、接入鉴权、注册、或移动性管理等。网络功能存储功能网元，用于服务发现，维护网络功能的配置和服务等。策略控制网元，用于指导网络行为的统一策略框架，为控制平面功能网元提供策略规则信息等。计费网元，用于为向授权的网络功能网元提供收费服务，支持UE入网认证、配额授信等。会话管理网元，主要用于与分离的数据面交互，创建、更新和删除协议数据单元(protocol data unit，PDU)会话，并管理与用户面网元的会话环境(session context)等。用户面网元，用于作为无线接入技术(radio access technology，RAT)内或RAT间移动性的锚点，外部PDU与数据网络互连的会话点。此外，用户面网元还用于分组路由和转发，数据包检查，用户平面部分策略规则实施，例如门控，重定向，流量转向)，合法拦截等。
示例性的，以5G通信系统为例，上述的移动管理网元具体可以是5G通信系统中的接入与移动性管理功能(access and mobility management function，AMF)网元，统一数据管理网元具体可以是5G通信系统中的统一数据管理(unified data management，UDM)网元，网络功能存储功能网元具体可以是5G通信系统中的网络功能存储功能(network function repository function，NRF)网元，会话管理网元具体可以是5G通信系统中的会话管理网元可以是会话管理功能(session management function，SMF)网 元，策略控制网元具体可以是在5G通信系统中的策略控制功能(policy control function，PCF)网元，计费网元具体可以是5G通信系统中的计费功能(charging function，CHF)网元，用户面网元具体可以是5G通信系统中的用户面功能(user plane function，UPF)网元。即，图1所示的网络架构在5G通信系统中具体为图2所示的网络架构。
其中，在未来通信如第六代(6th generation，6G)通信中，图1所示网络架构中的网元可以仍使用上述5G通信系统中网元的名称，或者有其它名称，本申请实施例对此不作限定。
基于图1所示的网络架构，本申请实施例提供了一种通信系统30。如图3所示，本申请实施例提供的通信系统30包括网络功能存储功能网元301，终端设备签约的第一统一数据管理网元302以及终端设备接入的移动管理网元303。其中，网络功能存储功能网元301对应的网元或者实体可以为图1所示网络架构中的网络功能存储功能网元，上述的第一统一数据管理网元302对应的网元或者实体可以为图1所示网络架构中的统一数据管理网元1或统一数据管理网元2。当第一统一数据管理网元为统一数据管理网元1时，移动管理网元303可以为图1所示网络架构中的移动管理网元1，也可以为图1所示网络架构中的移动管理网元2；或者，当第一统一数据管理网元为统一数据管理网元2时，移动管理网元303可以为图1所示网络架构中的移动管理网元1，也可以为图1所示网络架构中的移动管理网元2。其中，网络功能存储功能网元301、第一统一数据管理网元302和移动管理网元303中任意两个网元之间可以直接通信，也可以通过其他设备的转发进行通信，本申请实施例对此不作具体限定。
其中，网络功能存储功能网元301，用于接收来自移动管理网元303的第一标识，进而根据第一标识确定第一会话管理网元之后，向移动管理网元303发送第一会话管理网元的标识。其中，该第一标识用于标识终端设备的归属地，该第一会话管理网元的归属地标识与第一标识相同。
一种可选的实现方式中，第一标识为第一统一数据管理网元302的归属地标识。网络功能存储功能网元301，还用于向移动管理网元303发送第一统一数据管理网元302的归属地标识。第一统一数据管理网元302，用于获取终端设备的签约信息，并向移动管理网元303发送该签约信息，该签约信息用于确定终端设备签约的业务套餐是否为预设业务套餐。移动管理网元303，用于接收来自网络功能存储功能网元301的第一统一数据管理网元302的归属地标识以及来自第一统一数据管理网元302的终端设备的签约信息，并当根据终端设备的签约信息确定终端设备签约的业务套餐为预设业务套餐时，向网络功能存储功能网元301发送第一统一数据管理网元302的归属地标识。移动管理网元303，还用于接收来自网络功能存储功能网元301的第一会话管理网元的标识。
或者，另一种可选的实现方式中，第一标识为终端设备的归属地标识。第一统一数据管理网元302获取终端设备的签约信息，并向移动管理网元303发送终端设备的签约信息，其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识。移动管理网元303，用于接收来自第一统一数据管理网元的终端设备的签约信息，当确定签约信息中包含终端设备的归属地标识时，向 网络功能存储功能网元301发送终端设备的归属地标识。移动管理网元303，还用于接收来自网络功能存储功能网元301的第一会话管理网元的标识。
由于本申请实施例中，第一统一数据管理网元302可以获取终端设备的签约信息，并向移动管理网元303发送终端设备的签约信息，移动管理网元303可以接收来自移动管理网元303的终端设备的签约信息，当根据终端设备的签约信息确定终端设备签约的业务套餐为预设业务套餐时，移动管理网元303向网络功能存储功能网元301发送第一统一数据管理网元302的归属地标识。这样，当网络功能存储功能网元301接收到来自移动管理网元303的第一统一数据管理网元302的归属地标识，即说明终端设备签约的业务套餐为预设业务套餐，此时网络功能存储功能网元301即可根据第一统一数据管理网元302的归属地标识，为终端设备匹配对应的第一会话管理网元，进而向移动管理网元303发送第一会话管理网元的标识，从而可以为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。
或者，由于本申请实施例中，第一统一数据管理网元302可以获取终端设备的签约信息，并向移动管理网元303发送终端设备的签约信息，其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识。因此，当移动管理网元303确定所接收的终端设备的签约信息中包含终端设备的归属地标识时，即说明终端设备签约的业务套餐为预设业务套餐，此时移动管理网元303可以向网络功能存储功能网元301发送终端设备的归属地标识，进而当网络功能存储功能网元301接收到来自移动管理网元303的终端设备的归属地标识时，即可根据终端设备的归属地标识，为终端设备匹配对应的第一会话管理网元，并向移动管理网元303发送第一会话管理网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。
即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
其中，图3所示的通信系统30可以应用于目前的5G网络中，或者未来的其他网络，如6G网络等，本申请实施例对此不作具体限定。
示例性的，假设图3所示的通信系统应用于目前的5G网络中，则如图2所示，上述的网络功能存储功能网元对应的网元或者实体可以为图2所示5G网络架构中的NRF网元，上述的第一统一数据管理网元对应的网元或者实体可以为图2所示5G网络架构中的UDM网元1或UDM网元2，上述的移动管理网元对应的网元或者实体可以为图2所示5G网络架构中的AMF网元1或AMF网元2。
可选的，本申请实施例中的网络功能存储功能网元、第一统一数据管理网元或移动管理网元的相关功能可以由一个设备实现，也可以由多个设备共同实现，还可以是由一个设备内的一个或多个功能模块实现，本申请实施例对此不作具体限定。可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是硬件与软件的结合，或者是平台(例如，云平台)上实例化的虚拟化功能。
例如，本申请实施例中的网络功能存储功能网元、第一统一数据管理网元或移动 管理网元的相关功能可以通过图4中的通信装置40来实现。图4所示为本申请实施例提供的通信装置40的结构示意图。该通信装置40包括一个或多个处理器401，通信线路402，以及至少一个通信接口(图4中仅是示例性的以包括通信接口404，以及一个处理器401为例进行说明)，可选的还可以包括存储器403。
处理器401可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路402可包括一通路，用于连接不同组件之间。
通信接口404，可以是收发模块用于与其他设备或通信网络通信，如以太网，RAN，无线局域网(wireless local area networks，WLAN)等。例如，所述收发模块可以是收发器、收发机一类的装置。可选的，所述通信接口404也可以是位于处理器401内的收发电路，用以实现处理器的信号输入和信号输出。
存储器403可以是具有存储功能的装置。例如可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路402与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器403用于存储执行本申请方案的计算机执行指令，并由处理器401来控制执行。处理器401用于执行存储器403中存储的计算机执行指令，从而实现本申请实施例中提供的会话管理网元发现的方法。
或者，本申请实施例中，也可以是处理器401执行本申请下述实施例提供的会话管理网元发现的方法中的处理相关的功能，通信接口404负责与其他设备或通信网络通信，本申请实施例对此不作具体限定。
本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器可以包括一个或多个CPU，例如图4中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信装置40可以包括多个处理器，例如图4中的处理器401和处理器407。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，通信装置40还可以包括输出设备405和输入设备406。输出设备405和处理器401通信，可以以多种方式来显示信息。
下面将结合图1至图4对本申请实施例提供的会话管理网元发现的方法进行具体阐述。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
以图3所示的通信系统应用于图2所示的5G网络架构中，网络功能存储功能网元为NRF网元，第一统一数据管理网元为UDM网元2，移动管理网元为AMF网元1为例，如图5所示，为本申请实施例提供的一种会话管理网元发现的方法，包括如下步骤：
S501、SMF网元向NRF网元发送注册消息；NRF网元接收来自SMF网元的注册消息。
其中，SMF网元包括SMF网元1和SMF网元2，注册消息也称为第二消息。注册消息中携带SMF网元的归属地标识，注册消息用于将SMF网元注册到NRF网元。
一种可选的实现方式中，SMF网元的归属地标识具体可以包含在SMF网元的网络功能配置信息(NF profile)中。也就是说，SMF网元可以将SMF网元的归属地标识添加在SMF网元的网络功能配置信息中，并通过在注册消息中携带SMF网元的网络功能配置信息，向NRF网元发送SMF网元的归属地标识。进一步的，NRF网元接收到该注册消息后，可以保存SMF网元的网络功能配置信息，从而根据SMF网元的网络功能配置信息确定该SMF网元的归属地标识、SMF网元的标识以及SMF网元的其他相关信息。
示例性的，可以在现有网络功能配置信息中的预留字段中配置SMF网元的归属地标识。或者，可以通过扩展NF profile中的可选属性来定义SMF网元的归属地标识，比如采用表1所示形式扩展NF profile中的可选属性以标识SMF网元的归属地。表1中，属性名(x-servingScope)选项用于表示属性的名称，数据类型选项用于表示该属性的数据类型，例如，可以是字符串(string)类型的数组(array)，可选属性/必选属性选项用于表示该属性为可选属性或必选属性，取值选项用于表示该属性的具体取值(不同的取值表示不同的归属地)，描述选项用于描述该属性的功能。
表1
Figure PCTCN2020135862-appb-000001
S502、UDM网元2向NRF网元发送注册消息；NRF网元接收来自UDM网元2的注册消息。
其中，注册消息也可以称为第一消息，注册消息中携带UDM网元2的归属地标识，注册消息用于将UDM网元2注册到NRF网元。
一种可选的实现方式中，UDM网元2的归属地标识具体可以包含在UDM网元2的网络功能配置信息中。与SMF网元相类似，UDM网元2也可以通过将UDM网元2的归属地表述添加在UDM网元2的网络功能配置信息中，并通过在注册消息中携带UDM网元2的网络功能配置信息，向NRF网元发送UDM网元2的归属地标识。进 一步的，NRF网元接收到该注册消息后，可以保存UDM网元2的网络功能配置信息，从而根据UDM网元2的网络功能配置信息确定UDM网元2的归属地标识、UDM网元2的标识以及UDM网元2的其他相关信息。
进一步的，当AMF网元1接收到终端设备发送的业务请求消息时，则如图5所示，本申请实施例提供的会话管理网元发现的方法还可以包括如下步骤S503-S509：
S503、AMF网元1向NRF网元发送UDM发现请求消息，NRF网元接收来自AMF网元1的UDM发现请求消息。其中，UDM发现请求消息中携带终端设备的用户标识。
其中，终端设备的用户标识用于标识该终端设备，用户标识例如可以是终端设备的用户永久性标识(subscriber permanent identifier，SUPI)等，本申请实施例对此不作具体限定。
S504、NRF网元确定终端设备签约的UDM网元(本申请实施例中即UDM网元2)。
示例性的，NRF网元可以根据终端设备的用户标识，比如终端设备的SUPI，确定终端设备签约的UDM网元，本申请实施例对此不做具体限定。
S505、NRF网元向AMF网元1发送UDM网元2的归属地标识；AMF网元1接收来自NRF网元的UDM网元2的归属地标识。
一种可选的实现方式中，若在前述步骤S502中，UDM网元2的归属地标识包含在UDM网元2的网络功能配置信息中，则步骤S505具体可以包括：NRF网元可以向AMF网元1发送UDM网元2的网络功能配置信息；AMF网元1接收来自NRF网元的UDM网元2的网络功能配置信息。这样，AMF网元1即可通过读取所接收的UDM网元2的网络功能配置信息对应字段获取UDM网元2的归属地标识。
S506、AMF网元1向UDM网元2发送服务请求消息；UDM网元2接收来自AMF网元1的服务请求消息。其中，服务请求消息请求获取SMF选择签约信息(smf selection subscription data)。
S507、UDM网元2获取终端设备的签约信息。
S508、UDM网元2向AMF网元1发送SMF选择签约信息；AMF网元1接收来自UDM网元2的SMF选择签约信息。其中，SMF选择签约信息中包含终端设备的签约信息。
需要说明的是，现有协议中，SMF选择签约信息中并不包含终端设备的签约信息。本申请实施例中，扩展了SMF选择签约信息，使得SMF选择签约信息中包含终端设备的签约信息，这样，当AMF网元1接收到该SMF选择签约信息后，即可根据其中的终端设备签约信息确定终端设备签约的业务套餐是否为预设业务套餐(即步骤S509)。
S509、AMF网元1确定终端设备签约的业务套餐是否为预设业务套餐。
其中，AMF网元1可以根据SMF选择签约信息中包含的终端设备的签约信息，定终端设备签约的业务套餐是否为预设业务套餐。预设业务套餐即预先设定的需要发现归属地SMF网元的特定业务套餐，比如eMBB业务的特定套餐。当然，实际应用中，可以根据运营商业务套餐的具体部署需求确定预设业务套餐，本申请实施例对此不做具体限定。
一种可能的实现方式中，由于不同业务套餐对应的签约信息中的计费特征 (charging characteristic)不同，因此AMF网元1可以根据终端设备签约信息中的计费特征确定终端设备签约的业务套餐是否为预设业务套餐，本申请实施例对此不作具体限定。
一种可选的实现方式中，当AMF网元1确定终端设备签约的业务套餐为预设业务套餐时，如图5所示，本申请实施例提供的会话管理网元发现的方法还可以进一步包括如下步骤S510a-S512a：
S510a、AMF网元1向NRF网元发送SMF发现请求消息；NRF网元接收来自AMF网元1的SMF发现请求消息。
其中，SMF发现请求消息中携带UDM网元2的归属地标识。
S511a、NRF网元根据UDM网元2的归属地标识，确定SMF网元2。
当然，本申请实施例中，步骤S511a中的SMF发现请求消息中还携带标准SMF发现参数，如DNN、单网络切片选择辅助信息(single network slice selection assistance information，S-NSSAI)、跟踪区标识(tracking area identity，TAI)等，NRF网元将标准SMF发现参数作为可选参数，UDM网元2的归属地标识作为必选参数，为终端设备匹配对应的SMF网元，本申请实施例对此不做具体限定。
其中，SMF网元2也称为第一会话管理网元，SMF网元2的归属地标识和UDM网元2的归属地标识相同。由于SMF网元2和UDM网元2均归属于区域2，因此SMF网元2和UDM网元2的归属地标识相同。这样，NRF网元根据UDM网元2的归属地标识为终端设备匹配SMF网元时，可以匹配到区域2中的SMF网元2。
S512a、NRF网元向AMF网元1发送SMF网元2的标识；AMF网元1接收来自NRF网元的SMF网元2的标识。
进而，AMF网元1可以根据所接收到的SMF网元2的标识，通过SMF网元2发起会话建立流程，向终端设备提供业务。
或者，另一种可选的实现方式中，当AMF网元1确定终端设备签约的业务套餐不是预设业务套餐时，如图5所示，本申请实施例提供的会话管理网元发现的方法还可以进一步包括如下步骤S510b-S512b：
S510b、AMF网元1向NRF网元发送SMF发现请求消息；NRF网元接收来自AMF网元1的SMF发现请求消息。
其中，SMF发现请求消息中携带标准SMF发现参数，如DNN、S-NSSAI、TAI等，本申请实施例对此不做具体限定。
S511b、NRF网元为终端设备选择SMF网元。
其中，NRF网元可以根据标准SMF发现参数，为终端设备选择SMF网元。进一步的，由于NRF网元根据标准SMF发现参数进行选择，因此会为终端设备匹配到区域1中的SMF网元1。
S512b、NRF网元向AMF网元1发送SMF网元1的标识；AMF网元1接收来自NRF网元的SMF网元1的标识。
进而，AMF网元1可以根据所接收到的SMF网元1的标识，通过SMF网元1发起会话建立流程，向终端设备提供业务。
其中，步骤S510b-S512b的相关实现可参考现有技术，在此不予赘述。
由于本申请实施例中，UDM网元2可以获取终端设备的签约信息，并向AMF网元1发送终端设备的签约信息，AMF网元1可以接收来自AMF网元1的终端设备的签约信息，当AMF网元1根据终端设备的签约信息确定终端设备签约的业务套餐为预设业务套餐时，向NRF网元发送UDM网元2的归属地标识。这样，当NRF网元接收到来自AMF网元1的UDM网元2的归属地标识，即说明终端设备签约的业务套餐为预设业务套餐，此时NRF网元即可根据UDM网元2的归属地标识，为终端设备匹配对应的SMF网元，进而向AMF网元1发送所确定的SMF网元的标识，从而可以为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
此外，值得说明的是，由于本申请实施例未变动终端设备的签约信息，因此采用本申请实施例的方案时可以保留原签约信息，而无需用户重新签约。比如，在第四代(the 4th generation，4G)网络的基础上搭建5G网络时，可以继续沿用4G网络的业务套餐，无需用户重新签约新的业务套餐。
其中，上述步骤S501至S512a或步骤S501至S512b中的NRF网元、UDM网元2或SMF网元2的动作可以由图4所示的通信设备400中的处理器401调用存储器403中存储的应用程序代码来执行，本实施例对此不作任何限制。
或者，以图3所示的通信系统应用于图2所示的5G网络架构中，网络功能存储功能网元为NRF网元，第一统一数据管理网元为UDM网元2，移动管理网元为AMF网元1为例，如图6所示，为本申请实施例提供的另一种会话管理网元发现的方法，包括如下步骤：
S601、同步骤S501，相关描述可参考图5所示的实施例，在此不再赘述。
S602-603、同步骤S503-S504，相关描述可参考图5所示的实施例，在此不再赘述。
S604、NRF网元向AMF网元1发送UDM网元2的网络功能配置信息；AMF网元1接收来自NRF网元的UDM网元2的网络功能配置信息。
需要说明的是，不同与图5所示的实施例，步骤S604中的UDM网元2的网络功能配置信息中不包含UDM网元2的归属地标识。
S605、同步骤S506，相关描述可参考图5所示的实施例，在此不再赘述。
S606、UDM网元2获取终端设备的签约信息。
其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识。相应的，当终端设备签约的业务套餐不是预设业务套餐时，终端设备的签约信息中不包含终端设备的归属地标识。
S607、UDM网元2向AMF网元1发送终端设备的签约信息；AMF网元1接收来自UDM网元2的终端设备的签约信息。
可选的，UDM网元2可以将终端设备的签约信息包含在SMF选择签约信息中，并向AMF网元1发送SMF选择签约信息，进而AMF网元1可以通过接收来自UDM网元2的SMF选择签约信息获取终端设备的签约信息，本申请实施例对此不做具体限定。
S608、AMF网元1确定终端设备的签约信息中是否包含终端设备的归属地标识。
可以理解，当AMF网元1确定终端设备的签约信息中包含终端设备的归属地标识时，则表示终端设备签约的业务套餐为预设业务套餐。相应的，当AMF网元1确定终端设备的签约信息中不包含终端设备的归属地标识时，表示终端设备签约的业务套餐不是预设业务套餐。
一种可选的实现方式中，当AMF网元1确定终端设备的签约信息中包含终端设备的归属地标识时，如图6所示，本申请实施例提供的会话管理网元发现的方法还包括如下步骤S609a-S611a：
S609a、AMF网元1向NRF网元发送SMF发现请求消息；NRF网元接收来自AMF网元1的SMF发现请求消息。
其中，SMF发现请求消息中携带终端设备的归属地标识。
S610a、NRF网元根据终端设备的归属地标识，确定SMF网元2。
其中，SMF发现请求消息中还携带标准SMF发现参数，如DNN、S-NSSAI、TAI等，NRF网元将标准SMF发现参数作为可选参数，终端设备的归属地标识作为必选参数，为终端设备匹配对应的SMF网元，本申请实施例对此不做具体限定。
S611a、NRF网元向AMF网元1发送SMF网元2的标识；AMF网元1接收来自NRF网元的SMF网元2的标识。
进而，AMF网元1可以根据所接收到的SMF网元2的标识，通过SMF网元2发起会话建立流程，向终端设备提供业务。
或者，另一种可选的实现方式中，当AMF网元1确定终端设备的签约信息中不包含终端设备的归属地标识时，如图6所示，本申请实施例提供的会话管理网元发现的方法还包括如下步骤S609b-S611b：
S609b-S611b、同步骤S510b-S512b，相关描述可参考图5所示的实施例，在此不再赘述。
由于本申请实施例中，UDM网元2可以获取终端设备的签约信息，并向AMF网元1发送终端设备的签约信息，其中，当终端设备签约的业务套餐为预设业务套餐时，终端设备的签约信息中包含终端设备的归属地标识。因此，当AMF网元1确定所接收的终端设备的签约信息中包含终端设备的归属地标识时，即说明终端设备签约的业务套餐为预设业务套餐，此时AMF网元1可以向NRF网元发送终端设备的归属地标识，进而当NRF网元接收到来自AMF网元1的终端设备的归属地标识时，即可根据终端设备的归属地标识，为终端设备匹配对应的SMF网元，并向AMF网元1发送SMF网元的标识，从而实现为签约了相同DNN下不同业务套餐的终端设备，提供不同的会话管理网元发现策略。即，本申请实施例能够根据终端设备签约的业务套餐的不同，为终端设备提供不同的会话管理网元发现策略。避免了现有技术中，对于签约了相同DNN下不同业务套餐的终端设备，在会话激活时，采用的SMF网元的发现策略是相同的问题。
其中，上述步骤S601至S611a或步骤S601至S611b中的NRF网元、UDM网元2或SMF网元2的动作可以由图4所示的通信设备400中的处理器401调用存储器403中存储的应用程序代码来执行，本实施例对此不作任何限制。
可以理解的是，以上各个实施例中，由网络功能存储功能网元实现的方法和/或步 骤，也可以由可用于网络功能存储功能网元的部件实现；由第一统一数据管理网元实现的方法和/或步骤，也可以由可用于第一统一数据管理网元的部件实现；由移动管理网元实现的方法和/或步骤，也可以由可用于移动管理网元的部件实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置可以为上述方法实施例中的网络功能存储功能网元，或者包含上述网络功能存储功能网元的装置，或者为可用于网络功能存储功能网元的部件。或者，该通信装置可以为上述方法实施例中的第一统一数据管理网元，或者包含上述第一统一数据管理网元的装置，或者为可用于第一统一数据管理网元的部件。或者，该通信装置可以为上述方法实施例中的移动管理网元，或者包含上述移动管理网元的装置，或者为可用于移动管理网元的部件。可以理解的是，该通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。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。
比如，以通信装置为上述方法实施例中的网络功能存储功能网元为例，图7示出了一种网络功能存储功能网元70的结构示意图。该网络功能存储功能网元70包括收发模块701和处理模块702。所述收发模块701，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。
其中，收发模块701，用于接收来自移动管理网元的第一标识，第一标识用于标识终端设备的归属地；处理模块702，用于根据第一标识，确定第一会话管理网元，第一会话管理网元的归属地标识与第一标识相同；收发模块701，还用于向移动管理网元发送第一会话管理网元的标识。
可选的，第一标识为第一统一数据管理网元的归属地标识，第一统一数据管理网元为终端设备签约的统一数据管理网元；或者，第一标识为终端设备的归属地标识。
可选的，第一标识为第一统一数据管理网元的归属地标识；收发模块701，还用于向移动管理网元发送第一统一数据管理网元的归属地标识。
可选的，收发模块701用于向移动管理网元发送第一统一数据管理网元的归属地标识，包括：向移动管理网元发送第一统一数据管理网元的网络功能配置信息，该网络功能配置信息中包含第一统一数据管理网元的归属地标识。
可选的，收发模块701，还用于接收来自第一统一数据管理网元的第一消息，第一消息中携带第一统一数据管理网元的归属地标识，其中，第一消息用于将第一统一数据管理网元注册到网络功能存储功能网元70。
可选的，收发模块701，还用于接收来自第一会话管理网元的第二消息，第二消息中携带第一会话管理网元的归属地标识，其中，第二消息用于将第一会话管理网元注册到网络功能存储功能网元70。
可选的，第一会话管理网元的归属地标识包含在第一会话管理网元的网络功能配置信息中。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该网络功能存储功能网元70以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该网络功能存储功能网元70可以采用图4所示的通信装置40的形式。
比如，图4所示的通信装置40中的处理器401可以通过调用存储器403中存储的计算机执行指令，使得通信装置40执行上述方法实施例中的会话管理网元发现的方法。
具体的，图7中的处理模块702和收发模块701的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现。或者，图7中的处理模块702的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现，图7中的收发模块701的功能/实现过程可以通过图4中所示的通信装置40中的通信接口404来实现。
由于本实施例提供的网络功能存储功能网元70可执行上述的会话管理网元发现的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
或者，比如，以通信装置为上述方法实施例中的第一统一数据管理网元为例，图8示出了一种第一统一数据管理网元80的结构示意图。该第一统一数据管理网元80包括处理模块801和收发模块802。所述收发模块802，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。
一种可选的实现方式中，处理模块801，用于获取终端设备的签约信息，该签约信息用于确定终端设备签约的业务套餐是否为预设业务套餐。收发模块802，用于向移动管理网元发送该签约信息。
进一步可选的，收发模块802，还用于向网络功能存储功能网元发送第一消息，该第一消息中携带第一统一数据管理网元的归属地标识，该第一消息用于将第一统一数据管理网元注册到网络功能存储功能网元。
或者，另一种可选的实现方式中，处理模块801，用于获取终端设备的签约信息，其中，当终端设备签约的业务套餐为预设业务套餐时，该签约信息中包含终端设备的归属地标识，终端设备的归属地标识用于确定第一会话管理网元，第一会话管理网元与终端设备的归属地标识相同。收发模块802，还用于向移动管理网元发送该签约信息。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该第一统一数据管理网元80以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该第一统一数据管理网元80可以采用图4所示的通信装置40的形式。
比如，图4所示的通信装置40中的处理器401可以通过调用存储器403中存储的计算机执行指令，使得通信装置40执行上述方法实施例中的会话管理网元发现的方法。
具体的，图8中的处理模块801和收发模块802的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现。或者，图8中的处理模块801的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现，图8中的收发模块802的功能/实现过程可以通过图4中所示的通信装置40中的通信接口404来实现。
由于本实施例提供的第一统一数据管理网元80可执行上述的会话管理网元发现的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
或者，比如，以通信装置为上述方法实施例中的移动管理网元为例，图9示出了一种移动管理网元90的结构示意图。该移动管理网元90包括收发模块901和处理模块902。所述收发模块901，也可以称为收发单元用以实现收发功能，例如可以是收发电路，收发机，收发器或者通信接口。
一种可选的实现方式中，收发模块901，用于接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识；收发模块901，还用于接收来自第一统一数据管理网元的终端设备的签约信息；处理模块902，用于根据签约信息确定终端设备签约的业务套餐为预设业务套餐；收发模块901，还用于向网络功能存储功能网元发送第一统一数据管理网元的归属地标识，第一统一数据管理网元的归属地标识用于确定第一会话管理网元，第一会话管理网元和第一统一数据管理网元的归属地标识相同；收发模块901，还用于接收来自网络功能存储功能网元的第一会话管理网元的标识。
进一步可选的，收发模块901用于接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识包括：接收来自网络功能存储功能网元的第一统一数据管理网元的网络功能配置信息，该网络功能配置信息中包含第一统一数据管理网元的归属地标识。
或者，另一种可选的实现方式中，收发模块901，用于接收来自第一统一数据管理网元的终端设备的签约信息，第一统一数据管理网元为终端设备签约的数据管理网元；处理模块902，用于确定签约信息中包含终端设备的归属地标识；收发模块901，还用于向网络功能存储功能网元发送终端设备的归属地标识，终端设备的归属地标识用于确定第一会话管理网元，其中第一会话管理网元的归属地标识与统一数据管理网元的归属地标识相同；收发模块901，还用于接收来自网络功能存储功能网元的第一会话管理网元的标识。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本实施例中，该移动管理网元90以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该移动管理网元90可以采用图4所示的通信装置40的形式。
比如，图4所示的通信装置40中的处理器401可以通过调用存储器403中存储的计算机执行指令，使得通信装置40执行上述方法实施例中的会话管理网元发现的方法。
具体的，图9中的处理模块902和收发模块901的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现。或者，图9中的处理模块902的功能/实现过程可以通过图4所示的通信装置40中的处理器401调用存储器403中存储的计算机执行指令来实现，图9中的收发模块901的功能/实现过程可以通过图4中所示的通信装置40中的通信接口404来实现。
由于本实施例提供的移动管理网元90可执行上述的会话管理网元发现的方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
需要说明的是，以上模块或单元的一个或多个可以软件、硬件或二者结合来实现。当以上任一模块或单元以软件实现的时候，所述软件以计算机程序指令的方式存在，并被存储在存储器中，处理器可以用于执行所述程序指令并实现以上方法流程。该处理器可以内置于SoC(片上系统)或ASIC，也可是一个独立的半导体芯片。该处理器内处理用于执行软件指令以进行运算或处理的核外，还可进一步包括必要的硬件加速器，如现场可编程门阵列(field programmable gate array，FPGA)、PLD(可编程逻辑器件)、或者实现专用逻辑运算的逻辑电路。
当以上模块或单元以硬件实现的时候，该硬件可以是CPU、微处理器、数字信号处理(digital signal processing，DSP)芯片、微控制单元(microcontroller unit，MCU)、人工智能处理器、ASIC、SoC、FPGA、PLD、专用数字电路、硬件加速器或非集成的分立器件中的任一个或任一组合，其可以运行必要的软件或不依赖于软件以执行以上方法流程。
可选的，本申请实施例还提供了一种通信装置(例如，该通信装置可以是芯片或芯片系统)，该通信装置包括处理器，用于实现上述任一方法实施例中的方法。在一种可能的设计中，该通信装置还包括存储器。该存储器，用于保存必要的程序指令和数据，处理器可以调用存储器中存储的程序代码以指令该通信装置执行上述任一方法实施例中的方法。当然，存储器也可以不在该通信装置中。该通信装置是芯片系统时，可以由芯片构成，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质 可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (41)

  1. 一种会话管理网元发现的方法，其特征在于，包括：
    网络功能存储功能网元接收来自移动管理网元的第一标识，所述第一标识用于标识终端设备的归属地；
    所述网络功能存储功能网元根据所述第一标识，确定第一会话管理网元，其中，所述第一会话管理网元的归属地标识与所述第一标识相同；
    所述网络功能存储功能网元向所述移动管理网元发送所述第一会话管理网元的标识。
  2. 根据权利要求1所述的方法，其特征在于，所述第一标识为第一统一数据管理网元的归属地标识，所述第一统一数据管理网元为所述终端设备签约的统一数据管理网元；
    或者，所述第一标识为所述终端设备的归属地标识。
  3. 根据权利要求2所述的方法，其特征在于，所述第一标识为所述第一统一数据管理网元的归属地标识，所述方法还包括：
    所述网络功能存储功能网元向所述移动管理网元发送所述第一统一数据管理网元的归属地标识。
  4. 根据权利要求3所述的方法，其特征在于，所述网络功能存储功能网元向所述移动管理网元发送所述第一统一数据管理网元的归属地标识，包括：
    所述网络功能存储功能网元向所述移动管理网元发送所述第一统一数据管理网元的网络功能配置信息，所述网络功能配置信息中包含所述第一统一数据管理网元的归属地标识。
  5. 根据权利要求3或4所述的方法，其特征在于，所述方法还包括：
    所述网络功能存储功能网元接收来自所述第一统一数据管理网元的第一消息，所述第一消息中携带所述第一统一数据管理网元的归属地标识，其中，所述第一消息用于将所述第一统一数据管理网元注册到所述网络功能存储功能网元。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述网络功能存储功能网元接收来自所述第一会话管理网元的第二消息，所述第二消息中携带所述第一会话管理网元的归属地标识，其中，所述第二消息用于将所述第一会话管理网元注册到所述网络功能存储功能网元。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述第一会话管理网元的归属地标识包含在所述第一会话管理网元的网络功能配置信息中。
  8. 一种会话管理网元发现的方法，其特征在于，包括：
    第一统一数据管理网元获取终端设备的签约信息，所述签约信息用于确定所述终端设备签约的业务套餐是否为预设业务套餐，所述第一统一数据管理网元为所述终端设备签约的统一数据管理网元；
    所述第一统一数据管理网元向移动管理网元发送所述签约信息。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括：
    所述第一统一数据管理网元向网络功能存储功能网元发送第一消息，所述第一消息中携带所述第一统一数据管理网元的归属地标识，其中，所述第一消息用于将所述 第一统一数据管理网元注册到所述网络功能存储功能网元。
  10. 一种会话管理网元发现的方法，其特征在于，包括：
    移动管理网元接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，所述第一统一数据管理网元为终端设备签约的统一数据管理网元；
    所述移动管理网元接收来自所述第一统一数据管理网元的所述终端设备的签约信息；
    当所述移动管理网元根据所述签约信息确定所述终端设备签约的业务套餐为预设业务套餐时，所述移动管理网元向网络功能存储功能网元发送所述第一统一数据管理网元的归属地标识，所述第一统一数据管理网元的归属地标识用于确定第一会话管理网元，所述第一会话管理网元和所述第一统一数据管理网元的归属地标识相同；
    所述移动管理网元接收来自所述网络功能存储功能网元的所述第一会话管理网元的标识。
  11. 根据权利要求10所述的方法，其特征在于，所述移动管理网元接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，包括：
    所述移动管理网元接收来自所述网络功能存储功能网元的所述第一统一数据管理网元的网络功能配置信息，所述网络功能配置信息中包含所述第一统一数据管理网元的归属地标识。
  12. 一种会话管理网元发现的方法，其特征在于，包括：
    第一统一数据管理网元获取终端设备的签约信息，所述第一统一数据管理网元为所述终端设备签约的数据管理网元；其中，当所述终端设备签约的业务套餐为预设业务套餐时，所述签约信息中包含所述终端设备的归属地标识，所述终端设备的归属地标识用于确定第一会话管理网元，所述第一会话管理网元与所述终端设备的归属地标识相同；
    所述第一统一数据管理网元向移动管理网元发送所述签约信息。
  13. 一种会话管理网元发现的方法，其特征在于，包括：
    移动管理网元接收来自第一统一数据管理网元的终端设备的签约信息，所述第一统一数据管理网元为所述终端设备签约的数据管理网元；
    当所述移动管理网元确定所述签约信息中包含所述终端设备的归属地标识时，所述移动管理网元向网络功能存储功能网元发送所述终端设备的归属地标识，所述终端设备的归属地标识用于确定第一会话管理网元，其中所述第一会话管理网元的归属地标识与所述统一数据管理网元的归属地标识相同；
    所述移动管理网元接收来自所述网络功能存储功能网元的所述第一会话管理网元的标识。
  14. 一种通信装置，其特征在于，包括：收发模块及处理模块；
    其中，所述收发模块，用于接收来自移动管理网元的第一标识，所述第一标识用于标识终端设备的归属地；
    所述处理模块，用于根据所述第一标识，确定第一会话管理网元，其中，所述第一会话管理网元的归属地标识与所述第一标识相同；
    所述收发模块，还用于向所述移动管理网元发送所述第一会话管理网元的标识。
  15. 根据权利要求14所述的通信装置，其特征在于，所述第一标识为第一统一数据管理网元的归属地标识，所述第一统一数据管理网元为所述终端设备签约的统一数据管理网元；
    或者，所述第一标识为所述终端设备的归属地标识。
  16. 根据权利要求15所述的通信装置，其特征在于，所述第一标识为第一统一数据管理网元的归属地标识；
    所述收发模块，还用于向所述移动管理网元发送所述第一统一数据管理网元的归属地标识。
  17. 根据权利要求16所述的通信装置，其特征在于，所述收发模块用于向所述移动管理网元发送所述第一统一数据管理网元的归属地标识，包括：
    所述收发模块用于向所述移动管理网元发送所述第一统一数据管理网元的网络功能配置信息，所述网络功能配置信息中包含所述第一统一数据管理网元的归属地标识。
  18. 根据权利要求16或17所述的通信装置，其特征在于，所述收发模块，还用于接收来自所述第一统一数据管理网元的第一消息，所述第一消息中携带所述第一统一数据管理网元的归属地标识，其中，所述第一消息用于将所述第一统一数据管理网元注册到所述通信装置。
  19. 根据权利要求14-18任一项所述的通信装置，其特征在于，所述收发模块，还用于接收来自所述第一会话管理网元的第二消息，所述第二消息中携带所述第一会话管理网元的归属地标识，其中，所述第二消息用于将所述第一会话管理网元注册到所述通信装置。
  20. 根据权利要求14-19任一项所述的通信装置，其特征在于，所述第一会话管理网元的归属地标识包含在所述第一会话管理网元的网络功能配置信息中。
  21. 一种通信装置，其特征在于，所述通信装置为终端设备签约的统一数据管理网元，包括：处理模块及收发模块；
    其中，所述处理模块，用于获取所述终端设备的签约信息，所述签约信息用于确定终端设备签约的业务套餐是否为预设业务套餐；
    所述收发模块，用于向移动管理网元发送所述签约信息。
  22. 根据权利要求21所述的通信装置，其特征在于，所述收发模块，还用于向网络功能存储功能网元发送第一消息，所述第一消息中携带所述通信装置的归属地标识，其中，所述第一消息用于将所述通信装置注册到所述网络功能存储功能网元。
  23. 一种通信装置，其特征在于，包括：收发模块及处理模块；
    其中，所述收发模块，用于接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，所述第一统一数据管理网元为终端设备签约的统一数据管理网元；
    所述收发模块，还用于接收来自所述第一统一数据管理网元的所述终端设备的签约信息；
    所述处理模块，用于根据所述签约信息确定所述终端设备签约的业务套餐为预设业务套餐；
    所述收发模块，还用于向网络功能存储功能网元发送所述第一统一数据管理网元的归属地标识，所述第一统一数据管理网元的归属地标识用于确定第一会话管理网元， 所述第一会话管理网元和所述第一统一数据管理网元的归属地标识相同；
    所述收发模块，还用于接收来自所述网络功能存储功能网元的所述第一会话管理网元的标识。
  24. 根据权利要求23所述的通信装置，其特征在于，所述收发模块用于接收来自网络功能存储功能网元的第一统一数据管理网元的归属地标识，包括：
    所述收发模块用于接收来自所述网络功能存储功能网元的所述第一统一数据管理网元的网络功能配置信息，所述网络功能配置信息中包含所述第一统一数据管理网元的归属地标识。
  25. 一种通信装置，其特征在于，所述通信装置为终端设备签约的数据管理网元，包括：处理模块及收发模块；
    其中，所述处理模块，用于获取所述终端设备的签约信息；其中，当所述终端设备签约的业务套餐为预设业务套餐时，所述签约信息中包含所述终端设备的归属地标识；所述终端设备的归属地标识用于确定第一会话管理网元，所述第一会话管理网元与所述终端设备的归属地标识相同；
    所述收发模块，用于向移动管理网元发送所述签约信息。
  26. 一种通信装置，其特征在于，包括：收发模块及处理模块；
    其中，所述收发模块，用于接收来自第一统一数据管理网元的终端设备的签约信息，所述第一统一数据管理网元为所述终端设备签约的数据管理网元；
    所述处理模块，用于确定所述签约信息中包含所述终端设备的归属地标识；
    所述收发模块，还用于向网络功能存储功能网元发送所述终端设备的归属地标识，所述终端设备的归属地标识用于确定第一会话管理网元，其中所述第一会话管理网元的归属地标识与所述统一数据管理网元的归属地标识相同；
    所述收发模块，还用于接收来自所述网络功能存储功能网元的所述第一会话管理网元的标识。
  27. 一种通信装置，其特征在于，包括处理器和接口电路；所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置；所述处理器执行代码指令用于实现权利要求1-7中任一项所述的方法。
  28. 一种通信装置，其特征在于，包括处理器和接口电路；所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置；所述处理器执行代码指令用于实现权利要求8或9所述的方法。
  29. 一种通信装置，其特征在于，包括处理器和接口电路；所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置；所述处理器执行代码指令用于实现权利要求10或11所述的方法。
  30. 一种通信装置，其特征在于，包括处理器和接口电路；所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置；所述处理器执行代码指令用于 实现权利要求12所述的方法。
  31. 一种通信装置，其特征在于，包括处理器和接口电路；所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置；所述处理器执行代码指令用于实现权利要求13所述的方法。
  32. 一种通信装置，其特征在于，用于执行如权利要求1-7任一项所述的方法。
  33. 一种通信装置，其特征在于，用于执行如权利要求8或9所述的方法。
  34. 一种通信装置，其特征在于，用于执行如权利要求10或11所述的方法。
  35. 一种通信装置，其特征在于，用于执行如权利要求12所述的方法。
  36. 一种通信装置，其特征在于，用于执行如权利要求13所述的方法。
  37. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得所述计算机可以执行如权利要求1-13任一项所述的方法。
  38. 一种包含指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得所述计算机可以执行如权利要求1-13任一项所述的方法。
  39. 一种通信系统，其特征在于，包括执行如权利要求1-7任一项所述方法的网络存储功能网元以及执行如权利要求10或11所述方法的移动管理网元。
  40. 根据权利要求39所述的通信系统，其特征在于，还包括执行如8或9所述方法的第一统一数据管理网元。
  41. 一种通信系统，其特征在于，包括执行如权利要求12所述方法的第一统一数据管理网元以及执行如权利要求13所述方法的移动管理网元。
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