WO2021083054A1 - Procédé et appareil de transmission de message - Google Patents

Procédé et appareil de transmission de message Download PDF

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Publication number
WO2021083054A1
WO2021083054A1 PCT/CN2020/123333 CN2020123333W WO2021083054A1 WO 2021083054 A1 WO2021083054 A1 WO 2021083054A1 CN 2020123333 W CN2020123333 W CN 2020123333W WO 2021083054 A1 WO2021083054 A1 WO 2021083054A1
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entity
mec
application
message
address
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PCT/CN2020/123333
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English (en)
Chinese (zh)
Inventor
陶源
侯云静
王胡成
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大唐移动通信设备有限公司
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Publication of WO2021083054A1 publication Critical patent/WO2021083054A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • This application relates to the field of communication technology, and in particular to a method and device for message transmission.
  • Mobile Edge Computing (MEC) technology migrates computing storage capabilities and business service capabilities to the edge of the network, avoiding the need to transmit data back to the cloud as much as possible, reducing the waiting time for data to and from the cloud and network costs.
  • 5G user plane function modules and 5G MEC nodes are built at the edge of cloudification.
  • the 5G MEC nodes provide the MEC application platform to realize the deployment and management capabilities of third-party applications. Users can get services through the MEC application.
  • 5G defines application functions. It opens functions (Network Exposure Function, NEF) to non-trusted domain networks or sends application function requests (Application Function Request, AF Request) to trusted domain policy control functions (Policy Control Function, PCF), which include Target data network name (Data Network Name, DNN), application ID (Application IDentity, APP ID), N6 interface routing requirements, application location and a series of parameters.
  • NEF Network Exposure Function
  • AF Request Application Function Request
  • PCF trusted domain policy control functions
  • Target data network name Data Network Name, DNN
  • application ID Application IDentity
  • N6 interface routing requirements application location and a series of parameters.
  • PCF Policy and charging control
  • PCC policy and charging control
  • SMF Session Management Function
  • UPF User Plan Function
  • MEC provides functions such as application infrastructure resource orchestration, application instantiation, and application rule configuration. Therefore, when the MEC is deployed in the 5G system, the MEC can also act as an application function (AF) role, representing the interaction between the application deployed on the MEC and the 5G system control plane function module.
  • AF application function
  • FIG. 1 shows the edge computing network architecture.
  • the main network functions are introduced as follows:
  • AMF Access and Mobility Management Function, access and mobility management functions, registration, connection management, etc.
  • UPF User Plan Function
  • user plane function module External PDU conversation node interconnected with data network, message routing and forwarding.
  • SMF Session Management Function, session management function. Session establishment and deletion, user plane selection and control, user terminal Internet Protocol (User Equipment Internet Protocol, UE IP) allocation, etc.
  • UE IP User Equipment Internet Protocol
  • AF Application Function, application function. Interact with the 3GPP core network to provide services. Based on the deployment of operators, trusted AF can directly interact with related network functions (Network Function, NF), while untrusted AF cannot directly interact with NF, and should use the external disclosure framework to perform through NEF.
  • Network Function Network Function
  • PCF Policy Control Function, policy control function. Support a unified policy framework to manage network behaviors and provide policy rules for control plane NF execution.
  • NRF Network Repository Function, network storage function. Support service discovery function.
  • UDM Unified Data Management, unified data management. Store UE information, such as subscription information, and information about established PDU sessions.
  • NEF Network Exposure Function, network opening function. Provides functions that safely expose the services and capabilities provided by the 3GPP network to external networks.
  • UDR Unified Data Repository, unified database UDR. Storage of contract data and retrieval of contract data by UDM. The storage of strategy information and the retrieval of strategy information by PCF.
  • the UE can only learn the availability of a specific MEC application server, and when it is unavailable, the application context and UE context are migrated to a new server, and the UE cannot immediately obtain the address information of the new server to ensure the continuity of its service.
  • the application layer does not support this function or the application layer function cannot be executed, the existing problem cannot be solved.
  • the embodiments of the present application provide a message transmission method and device to realize that when the address of the MEC server and/or the MEC application server changes, the new server address can be notified to the terminal.
  • the terminal is notified of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or an MEC application server.
  • a trigger message is received; based on the trigger message, the terminal is notified of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes the MEC server and/or the MEC application server, thereby realizing the MEC
  • the terminal can be notified of the new server address.
  • the new address of the MEC related server is notified to the terminal through a protocol data unit PDU session modification process.
  • the session management function SMF entity when receiving an update message sent by the policy control function PCF entity containing the application function AF entity requesting to generate a new policy and charging control PCC rule, the session management function SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a change message sent by the unified data management UDM entity notifying the SMF entity about the MEC subscription information, the SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a response message to the notification information of the SMF entity and containing the MEC related information sent by the AF entity, the SMF entity initiates the PDU session modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address;
  • the PDU session modification command in the PDU session modification process includes: application identifier and application new address.
  • any of the messages also includes N6 interface traffic routing information.
  • the terminal is notified of the new address of the MEC related server.
  • the access and mobility management function AMF entity initiates the Terminal configuration modification process
  • the AMF entity when receiving a change message sent by the unified data management UDM entity containing the AMF entity informing the access and mobility management function about the MEC subscription information, the AMF entity initiates the terminal configuration modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the terminal policy container or terminal configuration update command in the terminal configuration modification process includes: application identifier and application new address.
  • another message transmission method provided in the embodiment of the present application includes:
  • the MEC related server includes an MEC server and/or an MEC application server;
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message containing a new policy and charging control PCC rule generated based on the request of the application function AF entity
  • the second network entity is a session management function SMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying the SMF entity about changes to MEC subscription information
  • the second network entity is an SMF entity
  • the first network entity is an AF entity
  • the trigger message is a response message containing MEC related information to the notification information of an SMF entity or an NEF entity
  • the second network entity is an SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address.
  • any of the messages also includes N6 interface traffic routing information.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through the terminal configuration modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message including an application function AF entity requesting to generate a new policy and charging control PCC rule
  • the second network entity is Access and mobility management function AMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying an access and mobility management function AMF entity about a change of MEC subscription information
  • the second network entity is an AMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address.
  • a message transmission method provided in an embodiment of the present application includes:
  • MEC related server includes an MEC server and/or an MEC application server;
  • the receiving unit is used to receive the trigger message
  • the notification unit is configured to notify the terminal of the new address of the mobile edge computing MEC related server based on the trigger message; wherein, the MEC related server includes an MEC server and/or an MEC application server.
  • the determining unit is used to determine the trigger message of the first network entity, and is used to trigger the second network entity to notify the terminal of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes the MEC server and/or the MEC application server;
  • the sending unit is configured to send the trigger message of the first network entity to the second network entity.
  • the receiving unit is configured to receive notification of a new address of a mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or an MEC application server;
  • the sending unit is configured to send a message to the MEC-related server according to the new address of the MEC-related server.
  • another message transmission device provided in this embodiment of the application includes:
  • Memory used to store program instructions
  • the processor is used to call the program instructions stored in the memory and execute according to the obtained program:
  • the terminal is notified of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or an MEC application server.
  • the processor notifies the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the device is a session management function SMF entity, and when the processor receives an update message sent by a policy control function PCF entity containing an application function AF entity requesting to generate a new policy and charging control PCC rule, Initiating the PDU session modification process;
  • the device is an SMF entity
  • the processor initiates the PDU session modification process when receiving a change message sent by the unified data management UDM entity to notify the SMF entity about the MEC subscription information;
  • the device is an SMF entity
  • the processor initiates the PDU session modification process when receiving a response message to the notification information of the SMF entity containing MEC related information sent by the AF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address;
  • the PDU session modification command in the PDU session modification process includes: application identifier and application new address.
  • any of the messages also includes N6 interface traffic routing information.
  • the processor notifies the terminal of the new address of the MEC related server through a terminal configuration modification process.
  • the device is an access and mobility management function AMF entity, and when the processor receives a policy control function PCF entity sending a new policy and charging control PCC rule generated based on the application function AF entity request Initiating the terminal configuration modification process when the update message is updated;
  • the device is an AMF entity
  • the processor initiates a terminal configuration modification process when receiving a change message sent by the unified data management UDM entity that contains the AMF entity informing the access and mobility management function about the MEC subscription information.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the terminal policy container or terminal configuration update command in the terminal configuration modification process includes: application identifier and application new address.
  • another message transmission device provided in an embodiment of the present application includes:
  • Memory used to store program instructions
  • the processor is used to call the program instructions stored in the memory and execute according to the obtained program:
  • the MEC related server includes an MEC server and/or an MEC application server;
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message containing a new policy and charging control PCC rule generated based on the request of the application function AF entity
  • the second network entity is a session management function SMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying the SMF entity about changes to MEC subscription information
  • the second network entity is an SMF entity
  • the first network entity is an AF entity
  • the trigger message is a response message containing MEC related information to the notification information of an SMF entity or an NEF entity
  • the second network entity is an SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address.
  • any of the messages also includes N6 interface traffic routing information.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through the terminal configuration modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message including an application function AF entity requesting to generate a new policy and charging control PCC rule
  • the second network entity is Access and mobility management function AMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message that informs the access and mobility management function AMF entity about the change of MEC subscription information
  • the second network entity is an AMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address.
  • another message transmission device provided in an embodiment of the present application includes:
  • Memory used to store program instructions
  • the processor is used to call the program instructions stored in the memory and execute according to the obtained program:
  • MEC related server includes an MEC server and/or an MEC application server;
  • Another embodiment of the present application provides a computer storage medium, the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute any of the foregoing methods.
  • FIG. 1 is a schematic diagram of an edge computing network architecture provided by an embodiment of this application.
  • FIG. 2 is a schematic flowchart of an information transmission method provided by an embodiment of this application.
  • FIG. 3 is a schematic flowchart of an information transmission method provided by an embodiment of the application.
  • FIG. 4 is a schematic flowchart of an information transmission method provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of an information transmission method provided by an embodiment of the application.
  • FIG. 6 is a schematic flowchart of an information transmission method provided by an embodiment of this application.
  • FIG. 7 is a schematic flowchart of a message transmission method provided by any network entity side in an embodiment of this application.
  • FIG. 8 is a schematic flowchart of a message transmission method provided by the sending side of the trigger message according to an embodiment of the application.
  • FIG. 9 is a schematic flowchart of a message transmission method provided by the terminal side according to an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of a message transmission apparatus provided by any network entity side in an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a message transmission device provided by a sending side of a trigger message according to an embodiment of the application;
  • FIG. 12 is a schematic structural diagram of a message transmission device provided by the terminal side according to an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of another message transmission apparatus provided by any network entity side in an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of another message transmission device provided by the sending side of the trigger message according to an embodiment of the application.
  • FIG. 15 is a schematic structural diagram of another message transmission apparatus provided by the terminal side according to an embodiment of the application.
  • the embodiments of the present application provide a message transmission method and device to realize that when the address of the MEC server and/or the MEC application server changes, the new server address can be notified to the terminal.
  • the method and the device are based on the same application concept. Since the method and the device have similar principles for solving the problem, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the applicable system can be the global system of mobile communication (GSM) system, code division multiple access (CDMA) system, and wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), general Mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G system, 5G NR system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • general packet Wireless service general packet radio service
  • GPRS general packet Radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS general Mobile system
  • WiMAX worldwide interoperability for microwave access
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal device may be different.
  • the terminal device may be called a user equipment (UE).
  • UE user equipment
  • a wireless terminal device can communicate with one or more core networks via a radio access network (RAN).
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or “cellular” phone) and a mobile phone.
  • the computer of the terminal device for example, may be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, and access point , Remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), user device (user device), which are not limited in the embodiments of the present application.
  • the network device involved in the embodiment of the present application may be a base station, and the base station may include multiple cells.
  • a base station may also be called an access point, or may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or other names.
  • the network device can be used to convert the received air frame and the Internet protocol (IP) packet to each other, as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment involved in the embodiments of this application may be a network equipment (base transmitter station, BTS) in the global system for mobile communications (GSM) or code division multiple access (CDMA). ), it can also be a network device (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device in a long-term evolution (LTE) system (evolutional node B, eNB or e-NodeB), the 5G base station in the next generation system including the 5G network architecture, or the home evolved node B (HeNB), relay node (relay node), Femto, pico, etc. are not limited in the embodiment of the present application.
  • BTS network equipment
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • NodeB wide-band code division multiple access
  • LTE long-term evolution
  • HeNB home evolved node B
  • relay node relay node
  • Femto, pico, etc. are not limited in the embodiment of the present application.
  • the address of the MEC server and/or MEC application server may change. For example, because the MEC server is unavailable, the MEC application server is migrated to the cloud or other MEC servers, and the internal application deployment of the MEC application server changes, etc. .
  • the MEC needs to notify the UE of the new addresses of the MEC server and/or MEC application server that can provide the same service. The following provides a solution for how to notify this information given in the embodiments of the present application.
  • This embodiment introduces that the PCF generates a new PCC rule update to the SMF based on an AF request (request), and the SMF initiates a PDU session modification to notify the UE of the new address of the MEC server and/or MEC application server.
  • the information transmission method provided in this embodiment includes the following steps:
  • the address of the MEC server and/or MEC application server changes. For example, because the MEC server is unavailable, the MEC application server (app server) is migrated to the cloud or other MEC servers, and the internal application deployment of the MEC application server changes.
  • the AF creates a request message by calling the first operation instruction Nnef_TrafficInfluence_Create (NEF_TrafficInfluence_Create) service operation.
  • the request information contains one or a combination of the following content: application identification (list), application new address (list), UE identification/address (list), the correspondence between N6 interface traffic routing information, wherein the N6 interface traffic
  • the routing information includes at least one of the following parameters: app ID, new IP (new IP), UE ID/UE IP, N6 interface traffic routing information (traffic routing info).
  • the relationship between each parameter can be one-to-one or one-to-many. For example, if the addresses of application 1 and application 2 connected by UE1 and UE2 are changed to IP1, the corresponding relationship is ⁇ (app ID1, app ID2), new IP, (UE ID1, UE ID2), N6 traffic routing info ⁇ .
  • These parameters are used to indicate that the address of the MEC server and/or MEC application server to which the specific UE is currently connected has changed, and a connection can be established with the server through the new address provided.
  • AF calls the NEF_TrafficInfluence_Create/Update (Nnef_TrafficInfluence_Create/Update) service operation to send the request information to NEF, NEF stores the AF request to the UDR, PCF subscribes to the UDR to change the AF request, and obtains the AF request from the notification information information. Or AF directly sends the information to PCF.
  • NEF_TrafficInfluence_Create/Update NEF_TrafficInfluence_Create/Update
  • the PCF generates a new PCC rule according to the AF request, and updates the new PCC rule to the SMF.
  • the PCF sends the PCC rule to the SMF by calling the second operation instruction Npcf_SMPolicyControl_UpdateNotify (PCF_Session Management Policy Control_Update Notification).
  • the SMF sends an N4 interface session modification request (Session Modification Request) to the UPF to provide N6 interface traffic routing information.
  • 205b UPF replies to the N4 interface session modification response (Session Modification Response).
  • the SMF sends one or more PDU session modification commands (Session Modification Command) to the AMF according to the UE ID parameters in the received information.
  • the information includes parameters such as application identification and application new address.
  • the parameters can be one-to-one or A one-to-many relationship. For example, if different applications connected by the UE migrate to different application servers, the corresponding relationship between the parameters includes ⁇ (app ID1, new IP1), (app ID2, new IP2) ⁇ .
  • the AMF sends the PDU Session Modification Command (which carries the application identifier and the new application address) to the corresponding UE.
  • the UE sends information to the MEC according to the new server address.
  • This embodiment introduces that the PCF generates a new PCC rule update to the AMF based on the AF request, and the AMF initiates a UE configuration modification to notify the UE of the new address of the MEC server and/or MEC application server.
  • the information transmission method provided in this embodiment includes the following steps:
  • the address of the MEC server and/or the MEC application server changes.
  • AF creates a request message by calling the Nnef_TrafficInfluence_Create service operation.
  • the message contains application identification (list), application new address (list), UE identification/address (list), and the correspondence between N6 interface traffic routing information (app ID, new IP, UE ID/UE IP, N6 traffic routing info), each parameter may have a one-to-one or one-to-many relationship. These parameters are used to indicate that the address of the MEC server and/or MEC application server to which the specific UE is currently connected has changed, and a connection can be established with the server through the new address provided.
  • the AF sends the request information (by calling Nnef_TrafficInfluence_Create/Update) to the NEF, the NEF stores the AF request to the UDR, and the PCF subscribes to the UDR for changes in the AF request, and obtains the information of the AF request from the notification information. Or AF directly sends information (including app ID, new IP, UE ID/UE IP) to PCF.
  • the AF sending the request information to the PCF can be sent directly or in an indirect manner through interaction with NEF and UDR.
  • NEF and UDR two entities, NEF and UDR, are set between AF and PCF (not shown in the figure).
  • the PCF calls the third operation command Namf_Communication_N1N2MessageTransfer (AMF_ ⁇ _N1N2 message transfer) service operation and sends the information to the AMF.
  • the information contains the UE ID and the UE policy container, and the UE policy container contains the application identifier and the new application address.
  • the AMF transparently transmits the received UE policy container (including app ID and new IP) to one or more UEs.
  • the UE sends information to the MEC according to the new server address.
  • the UDM notifies the SMF about the change of the MEC subscription information, and the SMF initiates PDU session modification to notify the UE of the new address of the MEC server and/or MEC application server.
  • UDM stores MEC-related contract information, for example, server address.
  • the information transmission method provided in this embodiment includes the following steps:
  • MEC sends information to UDM through NEF.
  • UDM updates the MEC subscription information (updates the address of the MEC server and/or the MEC application server), UDM sends notification information of the MEC address change to the SMF, and the information includes the application identifier (list), the new application address (list), and the UE
  • the correspondence between the identifier/address (list) and N6 interface traffic routing information (app ID, new IP, UE ID/UE IP, N6 traffic routing info), each parameter may be one-to-one or one-to-many The corresponding relationship. These parameters are used to indicate that the address of the MEC server and/or MEC application server to which the specific UE is currently connected has changed, and a connection can be established with the server through the new address provided.
  • the SMF sends an N4 session modification request (Session Modification Request) to the UPF, and provides N6 interface traffic routing information, etc. 402b.
  • the UPF replies to an N4 session modification response (Session Modification Response).
  • the SMF sends one or more PDU session modification commands (Session Modification Command) to the AMF.
  • the information includes an application identifier and a new application address.
  • the parameters may have a one-to-one or one-to-many correspondence relationship.
  • the AMF sends the PDU Session Modification Command (which carries the application identifier and the new application address) to the corresponding UE.
  • the UE sends information to the MEC according to the new server address.
  • the UDM notifies the AMF about the change of the MEC subscription information, and the AMF initiates the modification of the UE configuration to notify the UE of the new address of the MEC server and/or the MEC application server.
  • UDM stores MEC-related contract information, for example, server address.
  • the information transmission method provided in this embodiment includes the following steps:
  • MEC sends information to UDM through NEF.
  • UDM updates MEC subscription information (updates the address of MEC server and/or MEC application server), UDM sends notification information of MEC address change to AMF, the information includes application identification (list), application new address (list), UE The correspondence between the identifier/address (list) and N6 interface traffic routing information (app ID, new IP, UE ID/UE IP, N6 traffic routing info), each parameter can be one-to-one or one-to-many The corresponding relationship. These parameters are used to indicate that the address of the MEC server and/or MEC application server to which the specific UE is currently connected has changed, and a connection can be established with the server through the new address provided.
  • the AMF sends a UE configuration update command (Configuration Update Command) to one or more UEs according to the received information, and the information includes the application identifier and the new application address.
  • a UE configuration update command Configuration Update Command
  • the UE sends information to the MEC according to the new server address.
  • This embodiment introduces that the AF sends the MEC related information to the SMF in response to the SMF notification information, and the SMF initiates PDU session modification to notify the UE of the new address of the MEC server and/or MEC application server.
  • the information transmission method provided in this embodiment includes the following steps:
  • AF notification is triggered (for example, SMF receives AF notification request information).
  • SMF calls the fourth operation instruction Nsmf_EventExposure_Notify (SMF_event trigger_notify) service operation to send the information to NEF.
  • NEF triggers Nnef_TrafficInfluence_Notify to notify AF, or SMF directly calls Nsmf_EventExposure_Notify to notify AF.
  • AF replies to information (directly sent to SMF or sent to SMF via NEF) by calling the fifth operation command Nsmf_EventExposure_AppRelocation Info (SMF_Event Trigger_App Relocation), and the information includes the application identification (list) and the new application address (list) ), the correspondence between UE identification/address (list) (app ID, new IP, UE ID/UE IP), and each parameter may have a one-to-one or one-to-many correspondence. Used to indicate that the address of the MEC server and/or MEC application server to which a specific UE is currently connected has changed, and a connection with the server can be established through the provided new address.
  • the SMF sends one or more PDU session modification commands (Session Modification Command) to the AMF according to the UE ID parameters in the received information.
  • the information includes the application identifier and the new application address.
  • the parameters can be one-to-one or one-to-many. relationship.
  • the AMF sends the PDU Session Modification Command (which carries the application identifier and the new application address) to the corresponding UE.
  • a message transmission method provided in an embodiment of the present application includes:
  • a trigger message is received; based on the trigger message, the terminal is notified of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes the MEC server and/or the MEC application server, thereby realizing the MEC
  • the terminal can be notified of the new server address.
  • the new address of the MEC related server is notified to the terminal through a protocol data unit PDU session modification process.
  • the session management function SMF entity when receiving an update message sent by the policy control function PCF entity containing the application function AF entity requesting to generate a new policy and charging control PCC rule, the session management function SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a change message sent by the unified data management UDM entity notifying the SMF entity about the MEC subscription information, the SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a response message to the notification information of the SMF entity and containing the MEC related information sent by the AF entity, the SMF entity initiates the PDU session modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address;
  • the PDU session modification command in the PDU session modification process includes: application identifier and application new address.
  • any of the messages also includes N6 interface traffic routing information.
  • the terminal is notified of the new address of the MEC related server.
  • the access and mobility management function AMF entity initiates the Terminal configuration modification process
  • the AMF entity when receiving a change message sent by the unified data management UDM entity containing the AMF entity informing the access and mobility management function about the MEC subscription information, the AMF entity initiates the terminal configuration modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the terminal policy container or terminal configuration update command in the terminal configuration modification process includes: application identifier and application new address.
  • another message transmission method provided in an embodiment of the present application includes:
  • S201 Determine the trigger message of the first network entity, which is used to trigger the second network entity to notify the terminal of the new address of the mobile edge computing MEC related server;
  • the MEC related server includes an MEC server and/or an MEC application server;
  • S202 Send the trigger message of the first network entity to the second network entity.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message containing a new policy and charging control PCC rule generated based on the request of the application function AF entity
  • the second network entity is a session management function SMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying the SMF entity about changes to MEC subscription information
  • the second network entity is an SMF entity
  • the first network entity is an AF entity
  • the trigger message is a response message containing MEC related information to the notification information of an SMF entity or an NEF entity
  • the second network entity is an SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address.
  • any of the messages also includes N6 interface traffic routing information.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through the terminal configuration modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message including an application function AF entity requesting to generate a new policy and charging control PCC rule
  • the second network entity is Access and mobility management function AMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying an access and mobility management function AMF entity about a change of MEC subscription information
  • the second network entity is an AMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address.
  • a message transmission method provided by an embodiment of the present application includes:
  • S301 Receive notification of a new address of a mobile edge computing MEC related server; wherein the MEC related server includes an MEC server and/or an MEC application server;
  • S302 Send a message to the MEC-related server according to the new address of the MEC-related server.
  • a message transmission device provided in an embodiment of the present application includes:
  • the receiving unit 11 is configured to receive a trigger message
  • the notification unit 12 is configured to notify the terminal of the new address of the mobile edge computing MEC related server based on the trigger message; wherein, the MEC related server includes an MEC server and/or an MEC application server.
  • the new address of the MEC related server is notified to the terminal through a protocol data unit PDU session modification process.
  • the session management function SMF entity when receiving an update message sent by the policy control function PCF entity containing the application function AF entity requesting to generate a new policy and charging control PCC rule, the session management function SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a change message sent by the unified data management UDM entity notifying the SMF entity about the MEC subscription information, the SMF entity initiates the PDU session modification process;
  • the SMF entity when receiving a response message to the notification information of the SMF entity or the NEF entity and containing the MEC related information sent by the AF entity, the SMF entity initiates the PDU session modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address;
  • the PDU session modification command in the PDU session modification process includes: application identifier and application new address.
  • any of the messages also includes N6 interface traffic routing information.
  • the terminal is notified of the new address of the MEC related server.
  • the access and mobility management function AMF entity initiates the Terminal configuration modification process
  • the AMF entity when receiving a change message sent by the unified data management UDM entity containing the AMF entity informing the access and mobility management function about the MEC subscription information, the AMF entity initiates the terminal configuration modification process.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the terminal policy container or terminal configuration update command in the terminal configuration modification process includes: application identifier and application new address.
  • a message transmission apparatus provided in an embodiment of the present application includes:
  • the determining unit 21 is configured to determine the trigger message of the first network entity, and is used to trigger the second network entity to notify the terminal of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or MEC application server;
  • the sending unit 22 is configured to send the trigger message of the first network entity to the second network entity.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message containing a new policy and charging control PCC rule generated based on the request of the application function AF entity
  • the second network entity is a session management function SMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying the SMF entity about changes to MEC subscription information
  • the second network entity is an SMF entity
  • the first network entity is an AF entity
  • the trigger message is a response message containing MEC related information to the notification information of an SMF entity or an NEF entity
  • the second network entity is an SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address.
  • any of the messages also includes N6 interface traffic routing information.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through the terminal configuration modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message including an application function AF entity requesting to generate a new policy and charging control PCC rule
  • the second network entity is Access and mobility management function AMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying an access and mobility management function AMF entity about a change of MEC subscription information
  • the second network entity is an AMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address.
  • a message transmission apparatus provided in an embodiment of the present application includes:
  • the receiving unit 31 is configured to receive a new address notification of a mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or an MEC application server;
  • the sending unit 32 is configured to send a message to the MEC-related server according to the new address of the MEC-related server.
  • the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional 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 essentially or the part that contributes to the existing technology 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 a number of instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to 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 disk and other media that can store program code .
  • another message transmission apparatus provided in an embodiment of the present application includes:
  • the processor 500 is configured to read a program in the memory 520 and execute the following process:
  • the terminal is notified of the new address of the mobile edge computing MEC related server; wherein, the MEC related server includes an MEC server and/or an MEC application server.
  • the processor 500 notifies the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the device is a session management function SMF entity, and when the processor 500 receives an update message sent by a policy control function PCF entity containing an application function AF entity requesting to generate a new policy and charging control PCC rule , The processor 500 initiates the PDU session modification process;
  • the device is a session management function SMF entity
  • the processor 500 initiates the PDU session modification process when receiving a change message sent by the unified data management UDM entity notifying the SMF entity about the MEC subscription information;
  • the device is a session management function SMF entity
  • the processor 500 initiates the PDU session modification process when receiving a response message containing MEC related information sent by the AF entity to the notification information of the SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address;
  • the PDU session modification command in the PDU session modification process includes: application identifier and application new address.
  • any of the messages also includes N6 interface traffic routing information.
  • the processor 500 notifies the terminal of the new address of the MEC related server through a terminal configuration modification process.
  • the device is an access and mobility management function AMF entity, and when the processor 500 receives a new policy and charging control PCC generated based on the request of the application function AF entity sent by the policy control function PCF entity, Initiating the terminal configuration modification process when the rule is updated;
  • the device is an AMF entity
  • the processor 500 initiates a terminal configuration modification process when receiving a change message sent by a unified data management UDM entity that includes an AMF entity notifying access and mobility management functions regarding MEC subscription information.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the terminal policy container or terminal configuration update command in the terminal configuration modification process includes: application identifier and application new address.
  • the transceiver 510 is configured to receive and send data under the control of the processor 500.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 500 and various circuits of the memory represented by the memory 520 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 510 may be a plurality of elements, that is, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor 500 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD).
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • another message transmission apparatus provided in an embodiment of the present application includes:
  • the processor 504 is configured to read a program in the memory 505 and execute the following process:
  • the MEC related server includes an MEC server and/or an MEC application server;
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through a protocol data unit PDU session modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message containing a new policy and charging control PCC rule generated based on the request of the application function AF entity
  • the second network entity is a session management function SMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying the SMF entity about changes to MEC subscription information
  • the second network entity is an SMF entity
  • the first network entity is an AF entity
  • the trigger message is a response message containing MEC related information to the notification information of an SMF entity or an NEF entity
  • the second network entity is an SMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address;
  • the response message includes: application identification, application new address, terminal identification and/or address.
  • any of the messages also includes N6 interface traffic routing information.
  • the trigger message is specifically used to trigger the second network entity to notify the terminal of the new address of the MEC related server through the terminal configuration modification process.
  • the first network entity is a policy control function PCF entity
  • the trigger message is an update message including an application function AF entity requesting to generate a new policy and charging control PCC rule
  • the second network entity is Access and mobility management function AMF entity
  • the first network entity is a unified data management UDM entity
  • the trigger message is a message notifying an access and mobility management function AMF entity about a change of MEC subscription information
  • the second network entity is an AMF entity.
  • the update message includes: application identification, application new address, terminal identification and/or address;
  • the change message includes: application identification, application new address, terminal identification and/or address.
  • the transceiver 501 is configured to receive and send data under the control of the processor 504.
  • bus architecture (represented by bus 506), bus 506 can include any number of interconnected buses and bridges, bus 506 will include one or more processors represented by processor 504 and memory represented by memory 505
  • the various circuits are linked together.
  • the bus 506 can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein.
  • the bus interface 503 provides an interface between the bus 506 and the transceiver 501.
  • the transceiver 501 may be one element or multiple elements, such as multiple receivers and transmitters, and provide a unit for communicating with various other devices on a transmission medium.
  • the data processed by the processor 504 is transmitted on the wireless medium through the antenna 502, and further, the antenna 502 also receives the data and transmits the data to the processor 504.
  • the processor 504 is responsible for managing the bus 506 and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 505 may be used to store data used by the processor 504 when performing operations.
  • the processor 504 may be a CPU (central embedded device), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device) , Complex Programmable Logic Devices).
  • CPU central embedded device
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, field programmable gate array
  • CPLD Complex Programmable Logic Device
  • Complex Programmable Logic Devices Complex Programmable Logic Devices
  • another message transmission apparatus provided in an embodiment of the present application includes:
  • the processor 600 is configured to read a program in the memory 620, and execute the following process:
  • MEC related server includes an MEC server and/or an MEC application server;
  • the transceiver 610 is configured to receive and send data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 610 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.
  • the processor 600 may be a CPU (central embedded device), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device) , Complex Programmable Logic Devices).
  • CPU central embedded device
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, field programmable gate array
  • CPLD Complex Programmable Logic Device
  • Complex Programmable Logic Devices Complex Programmable Logic Devices
  • the embodiments of the present application provide a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), etc.
  • the computing device may include a central processing unit (CPU), a memory, an input/output device, etc.
  • the input device may include a keyboard, a mouse, a touch screen, etc.
  • an output device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), Cathode Ray Tube (CRT), etc.
  • the memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory.
  • ROM read only memory
  • RAM random access memory
  • the memory may be used to store the program of any of the methods provided in the embodiment of the present application.
  • the processor calls the program instructions stored in the memory, and the processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions.
  • the embodiment of the present application provides a computer storage medium for storing computer program instructions used by the device provided in the foregoing embodiment of the present application, which includes a program for executing any method provided in the foregoing embodiment of the present application.
  • the computer storage medium may be any available medium or data storage device that can be accessed by the computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • the method provided in the embodiments of the present application can be applied to terminal equipment, and can also be applied to network equipment.
  • the terminal equipment can also be called User Equipment (User Equipment, referred to as "UE"), Mobile Station (Mobile Station, referred to as “MS”), Mobile Terminal (Mobile Terminal), etc.
  • UE User Equipment
  • MS Mobile Station
  • Mobile Terminal Mobile Terminal
  • the terminal can be It has the ability to communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal can be a mobile phone (or called a "cellular" phone), or a mobile computer, etc.
  • the terminal may also be a portable, pocket-sized, handheld, computer built-in or vehicle-mounted mobile device.
  • the network device may be a base station (for example, an access point), which refers to a device that communicates with a wireless terminal through one or more sectors on an air interface in an access network.
  • the base station can be used to convert received air frames and IP packets into each other, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in LTE. B), or it can be gNB in the 5G system, etc.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolutional NodeB
  • the above-mentioned method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above-mentioned method steps are executed.
  • the AF request sent by the AF is used to indicate that the address of the MEC server and/or MEC application server to which the specific UE is currently connected has changed, and a connection with the server can be established through the provided new address.
  • the AF request includes application identification, application new address, UE identification/address, and N6 interface traffic routing information.
  • UDM sends notification information of MEC address change to SMF, and the information includes application identification, application new address, and UE identification/address.
  • the AF responds to the application relocation response notified by the SMF, and the information includes the application ID, the new application address, and the UE ID/address.
  • the SMF initiates PDU session modification, and notifies the UE of the application identifier and the new address of the application.
  • AMF initiates UE configuration modification, and notifies the UE of the application identifier and the new address of the application. Therefore, the embodiment of the present application solves the problem of supporting the address change of the edge computing server.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

L'invention concerne un procédé et un appareil de transmission de message, qui sont utilisés pour mettre en œuvre la situation dans laquelle un terminal peut être informé d'une nouvelle adresse de serveur lorsque l'adresse d'un serveur MEC et/ou d'un serveur d'application MEC change. Le procédé de transmission de message proposé dans les modes de réalisation de la présente invention consiste à : recevoir un message de déclenchement ; et sur la base du message de déclenchement, informer un terminal d'une nouvelle adresse d'un serveur lié à l'informatique de périphérie mobile (MEC), le serveur lié à MEC comprenant un serveur MEC et/ou un serveur d'application MEC.
PCT/CN2020/123333 2019-10-30 2020-10-23 Procédé et appareil de transmission de message WO2021083054A1 (fr)

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