WO2023124875A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2023124875A1
WO2023124875A1 PCT/CN2022/137560 CN2022137560W WO2023124875A1 WO 2023124875 A1 WO2023124875 A1 WO 2023124875A1 CN 2022137560 W CN2022137560 W CN 2022137560W WO 2023124875 A1 WO2023124875 A1 WO 2023124875A1
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WIPO (PCT)
Prior art keywords
request
udr
lan
nssai
dnn
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PCT/CN2022/137560
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English (en)
Chinese (zh)
Inventor
韩文勇
朱峰
谢春生
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华为技术有限公司
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Publication of WO2023124875A1 publication Critical patent/WO2023124875A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present application relates to the technical field of mobile communication, and in particular to a communication method and device.
  • the 3rd generation partnership project (3rd generation partnership project, 3GPP) defines a 5th generation mobile communication technology (5 th -generation, 5G) local area network (local area network, LAN) corresponding to a data network name (data network name, DNN) and single network slice selection assistance information (single network slice selection assistance information, S-NSSAI), that is, the 5G LAN group can be identified through the combination of DNN and S-NSSAI.
  • 5G 5th generation mobile communication technology
  • LAN local area network
  • DNN data network name
  • S-NSSAI single network slice selection assistance information
  • 5G LAN is generally used in business-oriented (to business, toB) scenarios.
  • toB the planning of the 5G LAN group is carried out by the enterprise.
  • the enterprise When an enterprise adds or deletes a 5G LAN group, the enterprise must notify the operator's maintenance personnel to add or delete the combination of DNN and S-NSSAI corresponding to the 5G LAN group.
  • data network authentication, authorization and billing (data network authentication, authorization and accounting, DN-AAA) server maintains the DNN and S-NSSAI combination corresponding to the 5G LAN group, so the same 5G LAN group configuration information (referred to as 5G LAN configuration information in this application) needs to be maintained in two systems.
  • the management method of the above 5G LAN group has the problem of inconvenient management of 5G LAN configuration information.
  • This application provides a communication method and device to improve the management efficiency of 5G LAN configuration information.
  • the present application provides a communication method, which can be implemented by a unified database or components such as chips or modules in the unified database.
  • the method may include the following process: UDR receives the first message from NEF, the first message includes 5G LAN configuration information, S-NSSAI and DNN; UDR can also store the 5G LAN The corresponding relationship among the configuration information, the S-NSSAI and the DNN.
  • UDR can support querying 5G LAN configuration information based on S-NSSAI and DNN, and no longer requires enterprise personnel to store 5G LAN configuration information in UDM, which can realize efficient management of 5G LAN configuration information.
  • the UDR may further send a second message to the NRF, where the second message is used to indicate the correspondence between the UDR, the S-NSSAI, and the DNN.
  • UDR may request NRF to store the correspondence between UDR and S-NSSAI and DNN, so that NRF can address UDR according to S-NSSAI and DNN.
  • the UDR may also send the 5G LAN configuration information, the S-NSSAI and the DNN to the SMF.
  • the UDR can send the 5G LAN configuration information, the S-NSSAI and the DNN to the SMF, for the SMF to determine the session associated with the S-NSSAI and the DNN, and determine whether to update it according to the 5G LAN configuration information Tunnel parameters of the session on the UPF side.
  • the SMF can configure the 5G LAN information of the session associated with the S-NSSAI and the DNN according to the 5G LAN configuration information from the UDR, so there is no need for the SMF to go through the secondary authentication process from the DN-AAA as in the prior art.
  • the UDR may also receive a first request from the SMF, the first request is used to request the 5G LAN configuration information, and the first request includes The corresponding S-NSSAI and DNN of the information.
  • the first request may be a request for subscribing to changes in 5G LAN configuration information, or a one-time request for 5G LAN configuration information.
  • the S-NSSAI and DNN included in the request enable efficient query of the corresponding 5G LAN configuration information.
  • the 5G LAN configuration information may include at least one of the following information: information about the 5G LAN group corresponding to the S-NSSAI and the DNN; Enterprise-side tunnel parameters corresponding to each 5G LAN group corresponding to the DNN; information about the UE, the S-NSSAI, and the 5G LAN group corresponding to the DNN; working parameters corresponding to the UE, the S-NSSAI, and the DNN .
  • this method it can provide a multi-granularity configuration method based on the combination of 5G LAN group, S-NSSAI and DNN, or the combination of UE, S-NSSAI and DNN, and improve configuration flexibility.
  • the 5G LAN group includes a newly added 5G LAN group
  • the UDR may also send a second request to the NRF, where the second request is used to request registration of the newly added 5G LAN group Group.
  • the UDR may also receive the identifier of the newly added 5G LAN group from the NRF. In this way, when the enterprise indicates a new 5G LAN group through the 5G LAN configuration information, the UDR can request the NRF to register the new 5G LAN group, which can realize the flexible management of the 5G LAN group.
  • the present application provides a communication method, which can be implemented by a network storage function or a component such as a chip or a module in the network storage function.
  • the method may include the following process: the NRF receives a third request from the NEF, the third request is used to request UDR information, and the third request includes S-NSSAI and DNN, The UDR is used to store 5G LAN configuration information, and the 5G LAN configuration information corresponds to the S-NSSAI and the DNN; NRF can also determine the UDR corresponding to the S-NSSAI and the DNN; NRF The information of the UDR may also be sent to the NEF.
  • NRF can address UDR according to S-NSSAI and DNN, so after receiving a request from NEF carrying S-NSSAI and DNN, it can provide UDR information to NEF according to the request to support NEF to send The corresponding UDR sends the 5G LAN configuration information planned by the enterprise.
  • This solution does not require enterprise personnel to configure 5G LAN configuration information in UDM through operator maintenance personnel, so it can improve the management efficiency of 5G LAN configuration information.
  • the NRF may further receive a second message from the UDR, where the second message is used to indicate the correspondence between the UDR, the S-NSSAI, and the DNN.
  • the 5G LAN configuration information may include at least one of the following information: information about the 5G LAN group corresponding to the S-NSSAI and the DNN; information related to the S-NSSAI and the DNN The enterprise-side tunnel parameters corresponding to each 5G LAN group corresponding to the DNN; the UE, the S-NSSAI, and the information of the 5G LAN group corresponding to the DNN; the information corresponding to the UE, the S-NSSAI, and the DNN working parameters.
  • the 5G LAN group includes a newly added 5G LAN group
  • the NRF may also receive a second request from the UDR, and the second request is used to request registration of the newly added 5G LAN group; NRF can also send the identifier of the newly added 5G LAN group to the UDR after successfully registering the newly added 5G LAN group.
  • the present application provides a communication method, which can be implemented by a network opening function or a component such as a chip or a module in the network opening function.
  • the method may include the following process: NEF receives a fourth request from AF, the fourth request is used to request storage of 5G LAN configuration information, and the fourth request includes the 5G LAN configuration information, S-NSSAI and DNN; NEF may also send a third request to NRF, the third request is used to request UDR information, the third request includes the S-NSSAI and the DNN, the The UDR is used to store the 5G LAN configuration information; the NEF can also receive the information of the UDR from the NRF; the NEF can also send a first message to the UDR according to the information of the UDR, and the first message Including the 5G LAN configuration information, the S-NSSAI and the DNN.
  • the present application provides a communication method, which can be implemented by a session management function or a component such as a chip or a module in the session management function.
  • the method may include the following process: the SMF receives the 5G LAN configuration information from the UDR, the S-NSSAI corresponding to the UDR, and the DNN corresponding to the UDR; The LAN configuration information sends the enterprise-side tunnel parameters corresponding to the 5G LAN group to the UPF, and the 5G LAN group corresponds to the S-NSSAI and the DNN.
  • the SMF may also receive a session establishment request from the UE, where the session establishment request includes the S-NSSAI and DNN corresponding to the 5G LAN configuration information; the SMF may also send the first request to the UDR , the first request is used to request 5G LAN configuration information, and the first request includes the S-NSSAI and DNN corresponding to the 5G LAN configuration information.
  • the SMF may also send a fifth request to the NRF, where the fifth request is used to request UDR information, and the fifth request includes the S-NSSAI and DNN corresponding to the 5G LAN configuration information.
  • the NRF stores the corresponding relationship between the S-NSSAI and DNN corresponding to the 5G LAN configuration information and the information of the UDR.
  • the SMF may also receive a session release request from the UE, where the session release request includes the identity of the UE, the S-NSSAI, and the DNN; the SMF may also determine that the UE All sessions of the UE in the 5G LAN group corresponding to the ID of the UE have been released; the SMF may also send a sixth request to the UPF, and the sixth request is used to request to delete the enterprise side corresponding to the 5G LAN group corresponding to the ID of the UE Tunnel parameters, the sixth request includes the S-NSSAI and DNN corresponding to the 5G LAN group, and/or, the SMF can send a seventh request to the UDR, and the seventh request is used to request cancellation of the S-NSSAI and DNN corresponding to the S-NSSAI. Subscription of the 5G LAN configuration information corresponding to the NSSAI and the DNN.
  • the embodiment of the present application provides a communication device, and the device may be a unified database, or may be a chip located in the unified database.
  • the device has the function of realizing any realization method of the first aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the embodiment of the present application provides a communication device.
  • the device may be a network storage function, or may be a chip or a module located in the network storage function.
  • the device has the function of implementing any implementation method of the second aspect above. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the embodiment of the present application provides a communication device.
  • the device may be a network opening function, or may be a chip located in the network opening function.
  • the device has the function of realizing any realization method of the third aspect above.
  • This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the embodiment of the present application provides a communication device.
  • the device may be a session management function, or may be a chip or a module in the session management function.
  • the device has the function of realizing any realization method of the fourth aspect above.
  • This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the embodiment of the present application provides a communication device, including a processor, the processor is coupled to the memory; the processor is used to execute the computer program or instruction stored in the memory, so that the device executes the above-mentioned first aspect to any implementation method in the fourth aspect.
  • the embodiment of the present application provides a communication device, including a unit or means (means) for performing each step of any implementation method in the first aspect to the fourth aspect.
  • the embodiment of the present application provides a communication system, including a device for executing any implementation method in the above first aspect, a device for executing any implementation method in the above second aspect, and a device for executing the above-mentioned implementation method. Any device for implementing the method in the third aspect, and any device for implementing the method for implementing any of the above fourth aspects.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when it runs on the communication device, the above-mentioned first aspect to the fourth aspect Any implementation method of is executed.
  • the embodiment of the present application also provides a computer program product, the computer program product includes a computer program or instruction, when the computer program or instruction is run by the communication device, any of the above first to fourth aspects The implementation method is executed.
  • the embodiment of the present application further provides a chip system, including: a processor, configured to execute any implementation method in the first aspect to the fourth aspect above.
  • FIG. 1A is a schematic structural diagram of a wireless communication system provided by the present application.
  • FIG. 1B is a schematic structural diagram of another wireless communication system provided by the present application.
  • FIG. 2 is a schematic structural diagram of another wireless communication system provided by the present application.
  • FIG. 3 is a schematic structural diagram of another wireless communication system provided by the present application.
  • FIG. 4A is a schematic structural diagram of another wireless communication system provided by the present application.
  • FIG. 4B is a schematic structural diagram of another wireless communication system provided by the present application.
  • FIG. 5 is a schematic flowchart of a communication method provided by the present application.
  • FIG. 6 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 7 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 8 is a schematic flowchart of another communication method provided by the present application.
  • FIG. 9 is a schematic structural diagram of another communication method provided by the present application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by the present application.
  • FIG. 11 is a schematic structural diagram of another communication device provided by the present application.
  • the present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Additionally, combinations of these schemes can also be used.
  • the word "exemplary” is used as an example, illustration or description. Any embodiment or design described herein as “example” is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.
  • a plurality referred to in this application refers to two or more than two.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • User equipment also called terminal equipment, is a device with a wireless transceiver function, which can communicate with One or more core network (core network, CN) devices (or may also be called core devices) communicate.
  • core network CN
  • CN core network
  • User equipment may also be called an access terminal, terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent, or user device, among others.
  • User equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as on aircraft, balloons, and satellites, etc.).
  • the user equipment can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a mobile phone, a wireless local loop (WLL) Station, personal digital assistant (PDA), etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the user equipment can also be a handheld device with wireless communication function, a computing device or other devices connected to a wireless modem, a vehicle device, a wearable device, a drone device or a terminal in the Internet of Things, the Internet of Vehicles, the fifth generation Mobile communication (5th-generation, 5G) network and any form of terminal in the future network, relay user equipment or terminal in the future evolved PLMN, etc.
  • the relay user equipment may be, for example, a 5G residential gateway (residential gateway, RG).
  • the user equipment can be a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), telemedicine Wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, and smart home wireless terminals, etc.
  • the embodiment of the present application does not limit the type or category of the terminal device.
  • the user equipment may also include end-side equipment, such as a local switch (local switch, LSW), and/or customer premise equipment (customer premise equipment, CPE), or the user equipment may access the network through the LSE or the CPE.
  • end-side equipment such as a local switch (local switch, LSW), and/or customer premise equipment (customer premise equipment, CPE), or the user equipment may access the network through the LSE or the CPE.
  • LSW local switch
  • CPE customer premise equipment
  • a user equipment (user equipment, UE) registered on the network may be understood as a user.
  • One of the UEs may correspond to a subscriber identity module (SIM) card, that is, when a terminal device is installed with a SIM card, the terminal device corresponds to a user UE; when a terminal device is installed with multiple SIM cards, the terminal device corresponds to Multiple UEs.
  • SIM subscriber identity module
  • a network device refers to a device that can provide a wireless access function for a terminal.
  • the network device may support at least one wireless communication technology, such as long term evolution (long term evolution, LTE), new radio (new radio, NR), wideband code division multiple access (wideband code division multiple access, WCDMA), etc.
  • network equipment may include access network equipment.
  • the network equipment includes but is not limited to: a next-generation base station or a next-generation node B (generation nodeB, gNB), an evolved node B (evolved node B, eNB) in a 5G network, and a radio network controller (radio network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB ), baseband unit (baseband unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, small station, micro station or 5G gateway, etc.
  • RNC radio network controller
  • node B node B
  • base station controller base station controller
  • BTS base transceiver station
  • home base station for example, home evolved node B, or home no
  • the network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device may It is a relay station, an access point, a vehicle-mounted device, a terminal, a wearable device, and a network device in future mobile communications or a network device in a future evolved public land mobile network (PLMN).
  • PLMN public land mobile network
  • the network device may include a core network (CN) device, and the CN device includes, for example, an AMF and the like.
  • CN core network
  • Figure 1A and Figure 1B are schematic diagrams of the fifth generation (5th generation, 5G) network architecture, wherein Figure 1A is a schematic diagram of a 5G network architecture under a non-service architecture, and Figure 1B is a service architecture (service-based architecture, Schematic diagram of 5G network architecture under SBA).
  • the 5G network architecture shown in FIG. 1A and FIG. 1B may include three parts, namely a terminal, a data network (data network, DN) and an operator network. The functions of some of the network elements are briefly introduced and described below.
  • the operator network may include but not limited to one or more of the following network elements: authentication server function (authentication server function, AUSF) network element, network exposure function (network exposure function, NEF) network element, policy control function (policy control function, PCF) network element, unified data management (unified data management, UDM) network element, unified database (unified data repository, UDR), network storage function (network repository function, NRF) network element, application function (application function, AF) network element, access and mobility management function (access and mobility management function, AMF) network element, session management function (session management function, SMF) network element, (wireless) access network ((radio) access network, (R)AN) equipment, user plane function (user plane function, UPF) network element, network slice selection function (network slice selection function, NSSF) network element (not shown in the figure), etc.
  • network elements or devices other than radio access network devices may be referred to as core network elements or core network devices.
  • the wireless access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system , the next-generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the wireless fidelity (wireless fidelity, WiFi) system, etc.; it can also complete the base station part
  • a functional module or unit for example, can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the radio access network equipment may be a macro base station, a micro base station or an indoor station, or a relay node or a donor node.
  • the embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • a base station is used as an example of a radio access network device for description.
  • a terminal may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and device form adopted by the terminal, and any of the above implementation manners may be adopted.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the AF network element which may be referred to as AF in this application, mainly conveys the requirements of the application side (such as the enterprise in the toB scenario) to the network side.
  • the requirements are, for example, quality of service (quality of service, QoS) requirements, user status events Subscription, or planning requirements for 5G LAN groups, etc.
  • the AF may be a third-party functional entity, or an application service deployed by an operator, such as an Internet protocol (internet protocol, IP) multimedia subsystem (IP multimedia subsystem, IMS) voice call service.
  • IP Internet protocol
  • IMS Internet multimedia subsystem
  • the application function entity of the third-party application it can also perform authorization processing through NEF when interacting with the core network.
  • the third-party application function directly sends a request to the NEF, and the NEF judges whether the AF is allowed to send the request. If the verification is passed, Then the request will be forwarded to the corresponding PCF or UDM.
  • the UDM network element which may be referred to as UDM in this application, is mainly responsible for functions such as managing subscription data and user access authorization.
  • the UDR network element which may be referred to as UDR in this application, is mainly responsible for accessing data such as subscription data, policy data, and application data.
  • the UDR can be addressed by a combination of S-NSSAI and DNN.
  • the information of the 5G LAN group corresponding to S-NSSAI and DNN is stored in UDR.
  • the PCF network element which may be referred to as PCF in this application, is mainly responsible for policy control functions such as charging for sessions and service flow levels, QoS bandwidth guarantee, mobility management, and UE policy decision-making.
  • the AMF network element which may be referred to as AMF in this application, mainly performs functions such as mobility management, access authentication/authorization, and the like for the UE. In addition, it is also responsible for transferring user policies between UE and PCF.
  • SMF network element which may be referred to as SMF in this application, mainly performs packet data unit (packet data unit, PDU) session (session) management for UE, execution of PCF delivery control strategy, UPF selection, and PDU Type as IP type Time UE IP address allocation and other functions.
  • PDU packet data unit
  • the UPF network element may be referred to as UPF in this application.
  • the UPF completes functions such as user plane data forwarding, session/flow-based charging statistics, and bandwidth limitation.
  • the communication interface shown in Figure 1A includes:
  • the N1 interface is the signaling plane interface between the AMF and the UE, and is used for exchanging signaling messages between the core network and the UE, such as UE registration to the network, UE establishment of a PDU session, and network side configuration of UE policies.
  • the N2 interface is an interface between the AMF and the RAN, and is used to transmit radio bearer control information from the core network to the RAN.
  • the N3 interface is an interface between (R)AN and UPF, and is used to transfer UE service data between RAN and UPF.
  • the N4 interface is the interface between the SMF and the UPF, and is used to transfer information between the control plane and the user plane, including the control plane terminal equipment completing the network access operation according to the contract information with the operator.
  • the N6 interface is an interface between the UPF and the DN, and is used to transfer UE service data between the UPF and the DN.
  • the N7 interface is the interface between the PCF and the SMF, and is used to deliver PDU session granularity and service data flow granularity control policies.
  • N8 interface is the interface between AMF and UDM, which is used for AMF to obtain subscription data and authentication data related to access and mobility management from UDM, and for AMF to register UE current mobility management related information with UDM.
  • the N10 interface is the interface between the SMF and the UDM, and is used for the SMF to obtain session management-related subscription data from the UDM, and for the SMF to register UE current session-related information with the UDM.
  • the N11 interface is the interface between the SMF and the AMF, and is used to transfer the PDU session tunnel information between the RAN and the UPF, the control message sent to the UE, the radio resource control information sent to the RAN, etc.
  • DN is a network outside the operator's network.
  • the operator's network can access multiple DNs, and various services can be deployed on the DN, which can provide data and/or voice services for terminals.
  • DN is a private network of a smart factory.
  • the sensors installed in the workshop of the smart factory can be terminals, and the control server of the sensors is deployed in the DN, and the control server can provide services for the sensors.
  • the sensor can communicate with the control server, obtain instructions from the control server, and transmit the collected sensor data to the control server according to the instructions.
  • DN is a company's internal office network.
  • the mobile phone or computer of the company's employees can be a terminal, and the employee's mobile phone or computer can access information and data resources on the company's internal office network.
  • the above-mentioned network element or function may be a network element in a hardware device, or a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a platform for example, a cloud platform.
  • the foregoing network element or function may be implemented by one device, or jointly implemented by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.
  • the session management network element, user plane network element, and mobility management network element in this application can be the SMF, UPF, and AMF in FIG.
  • the above-mentioned network elements with functions of SMF, UPF, and AMF are not limited in this application.
  • SMF, UPF, and AMF are respectively used as an example of a session management network element, a user plane network element, and a mobility management network element for description.
  • SBA service-based architecture
  • service-based architecture is the basic architecture of the 5G network. Servitization is mainly reflected in the control plane.
  • the essence of SBA is to define network functions as several "service” modules that can be flexibly invoked according to the three principles of "self-contained, reusable, and independent management". Based on this, operators can flexibly customize networking according to business needs.
  • the interaction between network functions is realized by service calls, and each network function presents a common service-oriented interface externally, which can be called by authorized network functions or services.
  • Figure 1B is a schematic diagram of an exemplary service-oriented architecture of a 5G network.
  • core network elements can communicate with other core network elements through service-oriented interfaces.
  • the service-oriented interfaces corresponding to AMF are Called the Namf interface.
  • the secondary authentication is an optional process for the terminal when establishing a PDU session. Its function is to authenticate and authorize the user's identity through interaction between the 3GPP network and the DN-AAA server when establishing the PDU session.
  • the DN-AAA server is referred to as DN-AAA for short.
  • the DN-AAA can be inside the data network (DN), or outside the data network.
  • a group session can also be called a group N4 session (group-level N4 session).
  • group-level N4 session the network side adds a 5G virtual network (virtual network, VN) internal (VN internal) interface inside the UPF, adds a group-level N4 session (group-level N4Session) on the basis of the PDU UE session, and adds an N19 interface between UPFs .
  • VN virtual network
  • group-level N4Session group-level N4 session
  • the message may be sent to the destination UE managed by the UPF through local interaction at the UPF, may be sent to the DN network side device through the N6 interface, or may pass through the N19 (not shown in Figure 1A out) or N9 interface to other UPFs, so as to be sent to UEs managed by other UPFs.
  • N9 can be used for communication between an intermediate UPF (intermediate UPF, I-UPF) and a PDU session anchor (PDU session anchor, PSA) UPF
  • N19 can be used for communication between two PSA UPFs.
  • the matching and forwarding process of data packets in the same group of 5G LAN is as follows:
  • the UPF uses local switching to complete the data exchange between UEs in the group.
  • the detailed process is: the UPF can receive the data message sent by the source UE to the destination UE through the N3 interface, and after the packet detection rule (packet detection rule, PDR) is matched (based on the message general packet radio service (general packet radio service, GPRS ) tunneling protocol (GPRS tunneling protocol, GTP)-user plane (GTP-U) packet header completes matching (the first round of matching)) obtains the source UE N4 session, and the corresponding forwarding action rule (forwarding action rule, FAR) indicates that the The message is forwarded to the 5G VN internal to enter the second round of PDR matching (matching is completed based on the destination IP in the message), and the destination UE N4 session is obtained, and the corresponding FAR indicates that the message is for
  • the SMF creates a corresponding group-level N4 session for the group on the involved PSA UPF to enable N9 forwarding and N6 forwarding capabilities.
  • the packet After the packet is first matched and forwarded to the 5G VN internal of UPF, after PDR rule matching (based on the destination IP or the default rule of matching all (match-all), etc.), it may finally be matched to the group N4 session, and the corresponding The FAR indication message is sent to the DN network side device through N6 or sent to the UPF where the destination UE is located through N19.
  • the matching and forwarding rule attribute field network instance in the N4 session is assigned the unique identifier of the 5G VN Group (which can be called Group ID), such as internal group ID (internal group ID), is used to indicate that the message belongs to the specified 5G VN Group.
  • Group ID unique identifier of the 5G VN Group
  • internal group ID internal group ID
  • a local area network is a computer communication network that is deployed in a local geographic area (such as a school, factory, and institution) and consists of interconnecting various computers, external devices, and databases. It can be connected with a remote local area network, database or processing center through a data communication network or a dedicated data circuit to form a large-scale information processing system.
  • 5G LAN wireless local area network
  • WLAN wireless local area network
  • 5G LAN can be used in a wider range of mobile network coverage, that is, no matter whether users are in the same region or not, as long as they join the same 5G LAN, LAN-based data exchange and communication can be realized.
  • 5G LANs can be customized on demand, and different 5G LANs are securely isolated from each other.
  • the terminal solves the problem of data exchange between the terminal and the data network by establishing a traditional PDU connection.
  • 5G LAN adds the concept of group (group), that is, terminals belonging to the same 5G LAN group can not only complete data exchange with the data network corresponding to the group, but also directly communicate with the terminals in the group through UPF. Other terminals complete data exchange, and terminals belonging to different groups are isolated from each other. Virtual private network communication can be realized through 5G LAN.
  • Figure 2 shows the user plane architecture where multiple terminals under the same 5G LAN group are registered in the same PSA UPF.
  • the PSA UPF since Terminal 1 and Terminal 2 belong to the same 5G LAN group, the PSA UPF not only completes the data exchange with the data network for Terminal 1 and Terminal 2, but also serves as the local switch node of the 5G LAN group Complete the data exchange between terminal 1 and terminal 2.
  • Figure 3 shows the user plane architecture in which multiple terminals under the same 5G LAN group are registered in multiple PSA UPFs.
  • the N19 interface is added between the PSA UPFs.
  • Terminal 1 and Terminal 2 belonging to the same 5G LAN group perform data exchange, the PSA UPFs corresponding to Terminal 1 and Terminal 2 will complete the transmission of terminal data through the N19 channel. .
  • the mobile network can support multiple 5G LAN groups at the same time, and terminals under the same group can communicate with each other. Terminals in different groups are isolated from each other.
  • the network data of the 5G LAN group defined by the enterprise is stored in the DN-AAA.
  • the SMF When the SMF establishes the Ethernet PDU session of the UE in the newly added 5G LAN group, it needs to use the secondary authentication process to obtain the UE from the DN-AAA.
  • the working parameters include, for example, the UE can use the media access control (media access control, MAC) address list and the virtual local area network (virtual local area network, VLAN) list, etc., for the establishment of the Ethernet PDU session.
  • the transmission path from SMF to DN-AAA must be configured through the operator's network management equipment.
  • VXLAN tunnel endpoint VXLAN tunnel end point
  • VTEP virtual extensible local area network gateway
  • VXLAN tunnel end point VTEP gateway
  • the VTEP network can serve multiple VLANs, such as VLAN1 to VLAN3.
  • the embodiment of the present application provides a communication method, which is used to provide a rapid deployment and management solution of 5G LAN groups, and can avoid separately maintaining data of 5G LAN groups in multiple systems, and improve the reliability of 5G LAN group management.
  • This method can be realized by the UDR, NEF, NRF and AF under the system architecture in the above-mentioned Fig. 1A and Fig. 1B.
  • the method may also involve actions performed by the SMF and UPF.
  • enterprise technicians can configure the 5G LAN configuration information planned by the enterprise to the UDR of the operator network through the entrance site and NEF, and the UDR will provide relevant parameters to the SMF.
  • the SMF can change the corresponding parameters through the UPF.
  • the UDM stores the original subscription data required for the UE to access the Internet, such as authentication parameters, and other relevant data such as 5G LAN configuration information is stored in the UDR, which is opened to the outside world through the NEF to facilitate the entry of planning parameters by enterprises.
  • enterprises do not need to configure 5G LAN related parameters in DN-AAA.
  • the UDR can be deployed exclusively by the enterprise, and the enterprise corresponds to the UDR one by one, or the UDR can be deployed in the campus where the enterprise is located.
  • the method may include the following steps:
  • the AF sends a 5G LAN parameter configuration request (which may be referred to as the fourth request for short in this application) to the NEF.
  • the NEF receives the 5G LAN parameter configuration request.
  • the 5G LAN parameter configuration request is used to request storage of 5G LAN configuration information, wherein the 5G LAN parameter configuration request carries 5G LAN configuration information, S-NSSAI and DNN.
  • the 5G LAN parameter configuration request can indicate the correspondence between 5G LAN configuration information, S-NSSAI and DNN.
  • the 5G LAN configuration information can be planned by the enterprise. After planning the 5G LAN configuration information, the enterprise side can request the operator network to store the 5G LAN configuration information through the fourth request.
  • 5G LAN configuration information can be used to add, delete or manage 5G LAN groups.
  • the 5G LAN configuration information may include at least one of the following information:
  • Information about the 5G LAN group corresponding to the S-NSSAI and the DNN can thus be used to indicate the 5G LAN group corresponding to each combination of S-NSSAI and DNN.
  • the enterprise-side tunnel parameters corresponding to each 5G LAN group corresponding to the S-NSSAI and the DNN such as the IP address of the tunnel and the VXLAN network identifier (VXLAN network identifier, VNI), so this configuration information can be used to configure each Enterprise-side tunnel parameters of a 5G LAN group.
  • VXLAN network identifier VNI
  • information about the 5G LAN group corresponding to the UE can indicate the correspondence between the UE and the 5G LAN group.
  • the UE (or UE's identity), the S-NSSAI and the corresponding working parameters of the DNN, the working parameters here may include MAC address list or VLAN list and other parameters used to configure PDU sessions outside, so the configuration information may indicate UE Applicable operating parameters.
  • enterprises can plan 5G virtual networks, that is, plan 5G LAN groups, and obtain 5G LAN configuration parameters.
  • the enterprise can send 5G LAN configuration information to the AF through an interface provided by the operator, such as an application programming interface (application programming interface, API).
  • an application programming interface application programming interface, API
  • enterprises can send 5G LAN configuration information, S-NSSAI and DNN to AF through API.
  • the NEF sends a UDR query request (which may be referred to as a third request in this application) to the NRF to request information about the UDR.
  • the UDR query request may include the S-NSSAI and the DNN.
  • the NRF can store the correspondence between the S-NSSAI and the DNN and UDR.
  • the UDR can be used to store the 5G LAN configuration information corresponding to the S-NSSAI and the DNN.
  • the UDR is used to store the 5G LAN configuration information.
  • the UDR may correspond to the S-NSSAI and the DNN.
  • the NEF can also query the 5G LAN group identity corresponding to the S-NSSAI and the DNN according to the S-NSSAI and the DNN carried in the 5G LAN parameter configuration request (hereinafter referred to as is the group identifier), if the group identifier corresponding to the S-NSSAI and the DNN can be queried, it means that the 5G LAN group corresponding to the group identifier has been created (or already exists), and this group can be carried in the UDR query request logo.
  • the group identifier corresponding to the S-NSSAI and the DNN according to the S-NSSAI and the DNN carried in the 5G LAN parameter configuration request
  • the NEF requests a UDR query request of the UDR from the NRF through the S-NSSAI and the DNN to implement UDR addressing.
  • the NRF receives the UDR query request.
  • the UDR query request includes S-NSSAI and DNN.
  • the NRF determines UDR information corresponding to the S-NSSAI carried in the UDR query request and the DNN.
  • the NRF may determine the UDR information corresponding to the S-NSSAI and the DNN according to the locally stored correspondence between the UDR, the S-NSSAI and the DNN.
  • the NRF can query the corresponding UDR information according to the group identifier.
  • the NRF may determine the UDR information corresponding to the group identifier according to the locally stored correspondence between the UDR and the group identifier.
  • the NRF sends the UDR information to the NEF.
  • the information of the UDR may be, for example, an identifier of the UDR or an address used to indicate the UDR.
  • the NEF receives the information of the UDR.
  • the NEF sends a first message to the UDR according to the information of the UDR, where the first message includes 5G LAN configuration information, the S-NSSAI and the DNN.
  • the UDR receives the first message, and stores the 5G LAN configuration information, the correspondence between the S-NSSAI and the DNN. This correspondence can be used for the UDR to query the corresponding 5G LAN configuration information according to the S-NSSAI and the DNN.
  • the enterprise no longer needs to maintain the 5G LAN configuration information in the UDM through the operator maintenance personnel, and only needs the enterprise to store the 5G LAN configuration information in the UDR through the AF and NEF.
  • the enterprise When deploying a new 5G LAN group, it is only necessary to configure the corresponding relationship between S-NSSAI, DNN, and 5G LAN configuration information of the 5G LAN group in the UDR.
  • the UDR performs addressing and obtains the 5G LAN configuration information from the UDR to realize the deployment of the 5G LAN group, thus realizing the rapid deployment of the 5G LAN group.
  • this solution does not require SMF to obtain 5G LAN configuration information from the DN-AAA server through the secondary authentication process, and does not need to maintain 5G LAN configuration information in the DN-AAA server, so avoiding the need for separate 5G LAN configuration information in the two systems.
  • Maintenance of LAN configuration information may cause data inconsistency, which can improve the reliability of 5G LAN configuration information management.
  • the NRF can obtain the correspondence between UDR, S-NSSAI and DNN according to the second message from the UDR, where the second message can be used to indicate the UDR, S-NSSAI and DNN Correspondence between.
  • the second message carries the S-NSSAI and the DNN, and when the NRF finds that the S-NSSAI and the DNN come from the UDR, it can know the correspondence between the UDR, the S-NSSAI and the DNN.
  • the second message may be used to request registration of the correspondence between the UDR and the S-NSSAI and the DNN, or in other words, the second message may be used to request the NRF to store the correspondence between the UDR, the S-NSSAI and the DNN relation.
  • the S-NSSAI and the DNN can be set as the addressing mode of the UDR, that is, other network elements can query the UDR through the S-NSSAI and the DNN.
  • the steps shown in S201 in FIG. 6 may optionally be performed, or the steps shown in S201 and S202 in FIG. 6 may be performed. It should be understood that the steps shown in S101 , S102 , S103 , S104 and S105 shown in FIG. 6 may refer to the description of FIG. 5 , and will not be expanded here.
  • the UDR sends a second message to the NRF, and the request message carries the S-NSSAI and the DNN.
  • the UDR can register the corresponding relationship between the identifier of the UE and the S-NSSAI and the DNN.
  • the UDR registers the S-NSSAI and DNN corresponding to the UE according to the identification number segment of the UE.
  • the second message may also include the identifier of the UE, such as a generic public subscription identifier (GPSI) or a user permanent identifier (subscription permanent identifier, SUPI), or carry a GPSI number segment or a SUPI number segment.
  • GPSI generic public subscription identifier
  • SUPI subscription permanent identifier
  • the NRF receives the second message and stores the correspondence between the UDR, the S-NSSAI, and the DNN.
  • S202 The NRF sends a response message of the second message to the UDR.
  • the corresponding relationship between UDR, S-NSSAI and DNN can also be stored in the NRF through manual configuration or protocol definition, which is not specifically limited in this application.
  • the UDR can also store the 5G LAN configuration information, the correspondence between the S-NSSAI and the DNN, so as to support querying the 5G LAN configuration information according to the S-NSSAI and the DNN.
  • the UDR can request the NRF to register the 5G LAN group, and receive the 5G LAN group identifier (or group identifier) allocated by the NRF for the 5G LAN group,
  • the identifier of the 5G LAN group can be used by the consumer to address the UDR corresponding to the 5G LAN group, which stores the 5G LAN configuration information of the 5G LAN group.
  • this process may be implemented through S203 to S204 shown in FIG. 6 .
  • the UDR sends a second request to the NRF, where the second request can be used to request registration of the newly added 5G LAN group, or to request the NEF to allocate an identifier of the newly added 5G LAN group. For example, it may carry the request information requesting the identification of the newly added 5G LAN group.
  • the S-NSSAI and the DNN can be carried in the 5G LAN group registration request.
  • NRF receives the registration request of the 5G LAN group, and assigns the identity of the 5G LAN group.
  • the NRF can also store the correspondence between the identifier of the 5G LAN group and the UDR, which is used to search for the UDR according to the identifier of the 5G LAN group.
  • the NRF After successfully registering the newly added 5G LAN group, the NRF sends the identifier of the newly added 5G LAN group to the NDR.
  • the identifier of the newly added 5G LAN group may be included in the response message corresponding to the second request.
  • the NRF may send the identifier of the 5G LAN group, the correspondence between the S-NSSAI and the DNN to the UDR.
  • the UDR receives the identity of the 5G LAN group.
  • the UDR sends a response message to the first message to the NEF.
  • the response message can be used to instruct the UDR to complete the storage of the corresponding relationship between the 5G LAN configuration information, S-NSSAI and DNN.
  • the NEF receives the response message.
  • the NEF sends a response message of the 5G LAN parameter configuration request to the AF.
  • the response message can be used to instruct the operator to store the result of the 5G LAN parameters, for example, instruct the UDR to complete the storage of the corresponding relationship between 5G LAN configuration information, S-NSSAI and DNN.
  • the AF receives the response message.
  • the UDR after the UDR stores the 5G LAN configuration information, it can also send the 5G LAN configuration to the SMF according to the request from the SMF for requesting the 5G LAN configuration information (this application may be referred to as the first request) information.
  • the request may include the S-NSSAI and DNN corresponding to the 5G LAN configuration information.
  • the request from the SMF may be a 5G LAN configuration information subscription request for the combination of S-NSSAI and DNN, and the subscription request may be used to request that the 5G LAN configuration information corresponding to the combination of S-NSSAI and DNN appear to create or Obtain the 5G LAN configuration information when events such as changes; or, the request from the SMF can be a one-time acquisition request for the 5G LAN configuration information corresponding to the combination of S-NSSAI and DNN.
  • the request may be sent by the SMF during the creation of the Ethernet PDU session by the UE.
  • S207-S210 may also be executed on the basis of the flow shown in FIG. 5 .
  • S207 The SMF sends a request message for 5G LAN configuration information to the UDR, which carries S-NSSAI and DNN.
  • the request message may be a 5G LAN configuration information subscription request, or a one-time request for the 5G LAN configuration information.
  • the request message may also include the identifier of the UE.
  • S207 may be performed before S105, or may be performed after S105, which is not specifically limited.
  • the UDR receives the request message.
  • the UDR sends the 5G LAN configuration information corresponding to the S-NSSAI and the DNN to the SMF in response to the request message.
  • the SMF sends an N4 session-level message or an N4 node-level message to the UPF according to the 5G LAN configuration information to notify the UPF to change parameters.
  • S209 is executed when the SMF determines that the parameters of the UPF need to be changed according to the 5G LAN configuration information.
  • the parameters described in S209 may be, for example, enterprise-side tunnel parameters corresponding to the 5G LAN group.
  • the UPF changes parameters according to the N4 session-level message or N4 node-level message from the SMF.
  • the UPF sends a response message to the SMF, which is used to indicate that the parameter change is completed.
  • the SMF can obtain the 5G LAN configuration information from the UDR, and instruct the UPF to change the parameters according to the 5G LAN configuration information, so as to realize the change of the corresponding parameters on the UPF side according to the 5G LAN configuration information.
  • the UPF side parameters can be updated through the modification process of the N4 session level message, for example, the UPF is instructed to update the combination of UE, S-NSSAI and DNN through the message related parameters.
  • the UPF side parameters can be updated through the N4 node-level message, for example, the N4 node-level message can be used to instruct the UPF to update the 5G LAN group.
  • Enterprise-side tunnel parameters For example, the N4 node-level message can be used to instruct the UPF to update the 5G LAN group.
  • N4 node-level parameter configuration process between SMF and UPF is shown in Figure 7, and may include the following steps:
  • the SMF sends a packet filter control protocol (PFCP) configuration request (configuration request) to the UPF, which carries enterprise-side tunnel parameters corresponding to the 5G LAN group that needs to be configured by the UPF.
  • PFCP packet filter control protocol
  • the PFCP configuration request may be an N4 node-level message.
  • the UPF receives the configuration request.
  • configure all the parameters carried in the configuration request or change the configured parameters according to the parameters carried in the configuration request.
  • the UPF sends a PFCP configuration response (configuration response) to the SMF, which carries a parameter configuration result.
  • the method provided by the embodiment of the present application is introduced through the behavior of the enterprise and the operator.
  • the following describes the 5G LAN configuration process involved in the UE online and offline process from the perspective of UE.
  • the corresponding relationship between the UE number segment and the S-NSSAI and DNN of the 5G LAN group to which the UE belongs is stored in the UE, for example, in the SIM card of the UE. It should be understood that the combinations of S-NSSAI and DNN corresponding to UEs in the same 5G LAN group are the same.
  • the communication method provided in the embodiment of the present application may also be applied to a UE online process.
  • the SMF can establish the UE's Ethernet PDU session according to the session establishment request from the UE.
  • the SMF may send a fifth request to the NRF according to the S-NSSAI and DNN carried by the UE in the session establishment request, so as to request information about the UDR corresponding to the S-NSSAI and the DNN.
  • the SMF may also send a first request to the UDR according to the S-NSSAI and the DNN, for requesting 5G LAN configuration information corresponding to the S-NSSAI and the DNN.
  • the SMF can also determine the enterprise-side tunnel parameters corresponding to the 5G LAN group according to the 5G LAN configuration information obtained from the UDR, where the 5G LAN group corresponds to the S-NSSAI and the DNN.
  • UPF can configure the enterprise-side tunnel parameters corresponding to the 5G LAN group, so that the UE's Ethernet PDU session can perform data transmission according to the tunnel parameters.
  • the UE online process may include the following steps:
  • S401 UE sends an Ethernet PDU session establishment request to SMF, which carries S-NSSAI and DNN. This request is used to establish an Ethernet PDU session.
  • S-NSSAI and DNN can be used by SMF to obtain the 5G LAN configuration information corresponding to S-NSSAI and DNN, and the 5G LAN configuration information is used to configure the 5G LAN group to which the UE belongs, for example, to determine the Ethernet address of the UE in the 5G LAN group.
  • Enterprise-side tunnel parameters of the PDU session can be used by SMF to obtain the 5G LAN configuration information corresponding to S-NSSAI and DNN, and the 5G LAN configuration information is used to configure the 5G LAN group to which the UE belongs, for example, to determine the Ethernet address of the UE in the 5G LAN group.
  • the session establishment request may also include the identifier of the UE, and the SMF may learn the correspondence between the UE identifier and the Ethernet PDU session established according to the session establishment request.
  • the UE may perform S401 after being powered on and establishing a connection with the 5G network.
  • the SMF receives the Ethernet PDU session establishment request.
  • the SMF sends a fifth request to the NRF according to the Ethernet PDU session establishment request, where the fifth request is used to request UDR information.
  • the fifth request may include S-NSSAI and DNN, and is used for SMF addressing UDR, and the 5G LAN configuration information corresponding to S-NSSAI and DNN is stored in the UDR.
  • the NRF stores the correspondence between the S-NSSAI and the DNN and the UDR.
  • the fifth request may also include the identifier of the UE.
  • the NRF receives the fifth request, and determines the UDR where the 5G LAN configuration information corresponding to the S-NSSAI and DNN is located according to the S-NSSAI and DNN corresponding to the 5G LAN configuration information carried in the fifth request.
  • the NRF After determining the UDR, the NRF sends the UDR information to the SMF.
  • the SMF receives the UDR information.
  • the SMF sends a request message for 5G LAN configuration information to the UDR, which carries S-NSSAI and DNN, and is used to request 5G LAN configuration information corresponding to the S-NSSAI and DNN.
  • the request message may also carry the identifier of the UE. This request message can be used to request subscription or one-time request for 5G LAN configuration information corresponding to S-NSSAI and DNN.
  • the UDR receives the request message, and determines the 5G LAN configuration information corresponding to the S-NSSAI and the DNN.
  • the process of UDR obtaining 5G LAN configuration information can refer to Figure 5 or Figure 6 and the corresponding description.
  • S405 The UDR sends 5G LAN configuration information to the SMF.
  • SMF receives 5G LAN configuration information and performs corresponding configuration.
  • the SMF can also send a subscription request for the 5G LAN configuration information to the UDR for subsequent changes in the 5G LAN configuration information, which will be changed by the UDR.
  • LAN configuration information is sent to SMF.
  • the SMF sends the enterprise-side tunnel parameters corresponding to the 5G LAN group to the UPF.
  • the 5G LAN group corresponds to the S-NSSAI and DNN.
  • the SMF determines the enterprise-side tunnel parameters corresponding to the 5G LAN group according to the 5G LAN configuration information, or after the SMF determines that the enterprise-side tunnel parameters corresponding to the 5G LAN group need to be changed according to the 5G LAN configuration information, it sends a PFCP configuration request to The UPF sends the enterprise-side tunnel parameters corresponding to the 5G LAN group.
  • the UPF receives the enterprise-side tunnel parameters corresponding to the 5G LAN group, and configures them so that the UE's Ethernet PDU session performs data transmission according to the tunnel parameters.
  • the UPF can also send a response message of the PFCP configuration request to the SMF to indicate the configuration result.
  • the SMF requests the UPF to establish a group session as needed.
  • the group session corresponds to the 5G LAN group to which the UE belongs.
  • S407 may not be executed.
  • S408 Establish an Ethernet PDU session between the SMF and the UPF. Wherein, the Ethernet PDU session is used for data transmission of the UE.
  • the SMF sends an Ethernet PDU session establishment response message to the UE to indicate the establishment result of the Ethernet PDU session.
  • the SMF can obtain the S-NSSAI signed by the UE from the UDR and the 5G LAN configuration information corresponding to the DNN, and configure the tunnel through the UPF according to the configuration information to realize the Ethernet PDU Efficient configuration of sessions.
  • the communication method provided in the embodiment of the present application may also be applied to a UE offline process.
  • the SMF may receive a session release request from the UE, which includes the UE ID.
  • the session release request can also include S-NSSAI and DNN, then in the case that all sessions of the UE in the 5G LAN group corresponding to the UE identifier have been released, the SMF can send a sixth request to the UPF to request deletion of all Therefore, when all the sessions of UEs in the 5G LAN group to which the UE belongs are released, delete the enterprise-side tunnel parameters of the 5G LAN group on the UPF side to free up storage space .
  • the SMF can also send a seventh request to the UDR, which carries the S-NSSAI and DNN, and is used to request cancellation of the S-NSSAI and DNN. Subscription of NSSAI and 5G LAN configuration information corresponding to the DNN.
  • the UE offline process may include the following steps:
  • S501 The UE initiates an Ethernet PDU session release request, which carries a UE identifier.
  • the S-NSSAI and DNN may also be carried in the session release request.
  • the release of the Ethernet PDU session may be many factors for the release of the Ethernet PDU session.
  • other network elements may also initiate the session release.
  • the session release initiated by the UE is used as an example for illustration.
  • S501 may be replaced by: the SMF decides to release the Ethernet PDU session of the UE.
  • the SMF receives an Ethernet PDU session release request.
  • S502 The SMF instructs the UPF to release the Ethernet PDU session of the UE.
  • the UPF releases the UE's Ethernet PDU session according to the instruction of the SMF.
  • the SMF may also receive a response message from the UPF to indicate the result of releasing the UE's Ethernet PDU session.
  • the SMF instructs the UPF to release the group session to which the UE belongs as needed.
  • the UPF releases the group session to which the UE belongs according to the instruction of the SMF.
  • the SMF may also receive a response message from the UPF to indicate the result of releasing the group session to which the UE belongs.
  • the SMF may send a sixth request to the UPF to request the UPF to delete the enterprise-side tunnel parameters corresponding to the 5G LAN group corresponding to the UE's identifier.
  • the sixth request may include the S-NSSAI and DNN corresponding to the 5G LAN group.
  • UPF deletes the enterprise-side tunnel parameters corresponding to the 5G LAN group according to the instructions of the SMF.
  • the SMF may also receive a response message from the UPF to indicate the result of deleting the enterprise-side tunnel parameters corresponding to the 5G LAN group.
  • the SMF can also send a seventh request to the UDR for requesting cancellation of the S-NSSAI and DNN associated with the 5G LAN group (or 5G LAN group ) to subscribe to the corresponding 5G LAN configuration information.
  • the seventh request may include the S-NSSAI and DNN corresponding to the 5G LAN group.
  • the steps shown in S505 can be performed.
  • UDR can cancel SMF's subscription to the 5G LAN configuration information.
  • the UDR may send a subscription cancel response message to the SMF to indicate the result of canceling the subscription.
  • the SMF sends an Ethernet PDU session release response message to the UE, which is used to indicate the result of the Ethernet PDU session release.
  • the SMF can release the Ethernet PDU session associated with the UE according to the session release request of the UE.
  • the group sessions associated with the 5G LAN group can be released, or the tunnel parameters related to the 5G LAN group configured by UPF can be released, or SMF can also be canceled Subscription of 5G LAN configuration information related to this 5G LAN group in UDR. According to this process, the management efficiency of 5G LAN configuration information can be improved.
  • the embodiment of the present application also provides a communication device, as shown in Figure 10, the communication device 1000 includes a processing unit 1001 and a transceiver unit 1002, and the device 1000 can be used to implement the above method Methods described in the Examples.
  • the transceiver unit 1002 can be used to receive a first message from the NEF, the first message includes 5G LAN configuration information, S-NSSAI and DNN; the processing unit 1001 can be used to Storing the correspondence between the 5G LAN configuration information, the S-NSSAI and the DNN.
  • the transceiving unit 1002 is further configured to send a second message to the NRF, where the second message is used to indicate the correspondence between the UDR, the S-NSSAI, and the DNN.
  • the transceiver unit 1002 is further configured to send the 5G LAN configuration information, the S-NSSAI and the DNN to the SMF.
  • the transceiver unit 1002 may also be configured to receive a first request from the SMF, the first request is used to request the 5G LAN configuration information, and the first request includes information related to the 5G LAN configuration The corresponding S-NSSAI and DNN of the information.
  • the 5G LAN configuration information includes at least one of the following information: information about the 5G LAN group corresponding to the S-NSSAI and the DNN; information corresponding to the S-NSSAI and the DNN Enterprise-side tunnel parameters corresponding to each 5G LAN group; information about the 5G LAN group corresponding to the UE, the S-NSSAI, and the DNN; working parameters corresponding to the UE, the S-NSSAI, and the DNN.
  • the 5G LAN group includes a newly added 5G LAN group
  • the transceiver unit 1002 can also be used to send a second request to the NRF, where the second request is used to request registration of the newly added 5G LAN group
  • the transceiver unit 1002 is further configured to receive the identifier of the newly added 5G LAN group from the NRF.
  • the transceiver unit 1002 can be configured to receive a third request from NEF, the third request is used to request information of UDR, and the third request includes S-NSSAI and DNN, the UDR is used to store 5G LAN configuration information, the 5G LAN configuration information corresponds to the S-NSSAI and the DNN; the processing unit 1001 can be used to determine the S-NSSAI and the DNN corresponding to The UDR; the transceiver unit 1002 is also configured to send the information of the UDR to the NEF.
  • the transceiving unit 1002 is further configured to receive a second message from the UDR, where the second message is used to indicate the correspondence between the UDR, the S-NSSAI, and the DNN.
  • the 5G LAN configuration information includes at least one of the following information: information about the 5G LAN group corresponding to the S-NSSAI and the DNN; information corresponding to the S-NSSAI and the DNN The enterprise-side tunnel parameters corresponding to each 5G LAN group of the 5G LAN group; the information of the 5G LAN group corresponding to the UE, the S-NSSAI and the DNN; the working parameters corresponding to the UE, the S-NSSAI and the DNN.
  • the 5G LAN group includes a newly added 5G LAN group; the transceiver unit 1002 is also configured to receive a second request from the UDR, and the second request is used to request registration of the newly added 5G LAN group; the transceiver unit 1002 can also be used to send the identifier of the newly added 5G LAN group to the UDR after successfully registering the newly added 5G LAN group.
  • the transceiver unit 1002 when the device 1000 is applied to NEF, can be configured to receive a fourth request from AF, the fourth request is used to request storage of 5G LAN configuration information, and the fourth request includes the The 5G LAN configuration information, S-NSSAI and DNN; the transceiver unit 1002 can also be used to send a third request to the NRF, the third request is used to request UDR information, and the third request includes the S-NSSAI and the DNN
  • the DNN the UDR is used to store the 5G LAN configuration information; the transceiver unit 1002 can also be used to receive the information of the UDR from the NRF; the transceiver unit 1002 can also be used to send the information to the The UDR sends a first message, where the first message includes the 5G LAN configuration information, the S-NSSAI, and the DNN.
  • the transceiver unit 1002 when the device 1000 is applied to SMF, can be used to receive the 5G LAN configuration information from the UDR, the S-NSSAI corresponding to the UDR, and the DNN corresponding to the UDR; the transceiver unit 1002 can also be used
  • the enterprise side tunnel parameters corresponding to the 5G LAN group are sent to the UPF according to the 5G LAN configuration information, and the 5G LAN group corresponds to the S-NSSAI and the DNN.
  • the transceiver unit 1002 can also be used to receive a session establishment request from the UE, the session establishment request includes the S-NSSAI and DNN corresponding to the 5G LAN configuration information; the transceiver unit 1002 can also be used to send the session to the The UDR sends a first request, the first request is used to request the 5G LAN configuration information, and the first request includes the S-NSSAI and DNN corresponding to the 5G LAN configuration information.
  • the transceiver unit 1002 may also be configured to send a fifth request to the NRF, where the fifth request is used to request the information of the UDR, and the fifth request includes the S-NSSAI corresponding to the 5G LAN configuration information and DNN, the NRF stores the corresponding relationship between the S-NSSAI and DNN corresponding to the 5G LAN configuration information, and the information of the UDR.
  • the transceiver unit 1002 is further configured to receive a session release request from the UE, where the session release request includes the identifier of the UE, the S-NSSAI and the DNN; the processing unit 1001 is configured to determine the The sessions of all UEs in the 5G LAN group corresponding to the UE's identity have been released; the transceiver unit 1002 can also be used to send a sixth request to the UPF, and the sixth request is used to request to delete the 5G LAN group corresponding to the UE's identity
  • the enterprise-side tunnel parameters corresponding to the group, the sixth request includes the S-NSSAI and DNN corresponding to the 5G LAN group, and/or, the SMF sends a seventh request to the UDR, and the seventh request is used to request cancellation of the Subscription of 5G LAN configuration information corresponding to the S-NSSAI and the DNN.
  • each functional unit in each embodiment of the present application It can be integrated in one processing unit, or physically exist separately, or two or more units can be integrated in one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • the embodiment of the present application also provides a schematic structural diagram of a communication device 1100 .
  • the apparatus 1100 may be used to implement the methods described in the foregoing method embodiments, and reference may be made to the descriptions in the foregoing method embodiments.
  • the apparatus 1100 includes one or more processors 1101 .
  • the processor 1101 may be a general-purpose processor or a special-purpose processor. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (such as base stations, terminals, or chips, etc.), execute software programs, and process data of software programs.
  • the communication device may include a transceiver unit to implement signal input (reception) and output (transmission).
  • the transceiver unit may be a transceiver, a radio frequency chip and the like.
  • the apparatus 1100 includes one or more processors 1101, and the one or more processors 1101 can implement the methods in the above-mentioned embodiments.
  • the processor 1101 may also implement other functions in addition to implementing the methods in the foregoing embodiments.
  • the processor 1101 may execute instructions, so that the apparatus 1100 executes the methods described in the foregoing method embodiments.
  • the instruction may be stored in whole or in part in the processor, such as instruction 1103, or may be stored in whole or in part in the memory 1102 coupled with the processor, such as instruction 1104, or may be jointly made by instructions 1103 and 1104
  • the device 1100 executes the methods described in the foregoing method embodiments.
  • the communication device 1100 may also include a circuit, and the circuit may implement the functions in the foregoing method embodiments.
  • the device 1100 may include one or more memories 1102, on which are stored instructions 1104, the instructions can be executed on the processor, so that the device 1100 executes the above method Methods described in the Examples.
  • data may also be stored in the memory.
  • Instructions and/or data may also be stored on the optional processor.
  • the one or more memories 1102 may store the corresponding relationships described in the above embodiments, or related parameters or tables involved in the above embodiments.
  • the processor and memory can be set separately or integrated together.
  • the apparatus 1100 may further include a transceiver 1105 and an antenna 1106 .
  • the processor 1101 may be called a processing unit, and controls the device (terminal or base station).
  • the transceiver 1105 may be called a transceiver, a transceiver circuit, or a transceiver unit, etc., and is used to realize the transceiver function of the device through the antenna 1106 .
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the embodiment of the present application also provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a computer, the communication method described in any one of the above method embodiments is implemented.
  • the embodiment of the present application also provides a computer program product, which implements the communication method described in any one of the above method embodiments when the computer program product is executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • the embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the communication method described in any one of the above method embodiments.
  • the above-mentioned processing device may be a chip, and the processor may be implemented by hardware or by software.
  • the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may be integrated in the processor, or may be located outside the processor and exist independently.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or integrated. to another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • a unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a computer.
  • computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or may be used to carry or store information in the form of instructions or data structures desired program code and any other medium that can be accessed by a computer.
  • Any connection can suitably be a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave
  • coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave
  • disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and blu-ray disc, where discs usually reproduce data magnetically, and discs Lasers are used to optically reproduce the data. Combinations of the above should also be included within the scope of computer-readable media.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé et un appareil de communication. Le procédé comprend les étapes suivantes : un UDR reçoit un premier message en provenance d'une fonction d'exposition de réseau (NEF), le premier message comprenant des informations de configuration de réseau local de technologie de communication mobile de 5ème génération (LAN 5G), des S-NSSAI et un DNN ; l'UDR stocke la correspondance entre les informations de configuration de LAN 5G, les S-NSSAI et le DNN.. Par conséquent, selon la solution de la présente demande, comme l'UDR peut être pris en charge pour interroger les informations de configuration de LAN 5G d'après les S-NSSAI et le DNN, l'efficacité de gestion des informations de configuration de LAN 5G peut être améliorée.
PCT/CN2022/137560 2021-12-30 2022-12-08 Procédé et appareil de communication WO2023124875A1 (fr)

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CN113133129A (zh) * 2019-12-30 2021-07-16 华为技术有限公司 一种业务处理的方法、装置和系统
CN114268975A (zh) * 2021-12-30 2022-04-01 华为技术有限公司 一种通信方法及装置

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