WO2019154283A1 - 一种业务迁移的方法及装置 - Google Patents

一种业务迁移的方法及装置 Download PDF

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Publication number
WO2019154283A1
WO2019154283A1 PCT/CN2019/074240 CN2019074240W WO2019154283A1 WO 2019154283 A1 WO2019154283 A1 WO 2019154283A1 CN 2019074240 W CN2019074240 W CN 2019074240W WO 2019154283 A1 WO2019154283 A1 WO 2019154283A1
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Prior art keywords
service
application
context
original
sub
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PCT/CN2019/074240
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English (en)
French (fr)
Inventor
李海民
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US16/968,605 priority Critical patent/US10939358B2/en
Priority to EP19751394.8A priority patent/EP3751903B1/en
Priority to JP2020542750A priority patent/JP6857781B2/ja
Priority to KR1020207025863A priority patent/KR102213122B1/ko
Publication of WO2019154283A1 publication Critical patent/WO2019154283A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/34—Modification of an existing route
    • H04W40/36—Modification of an existing route due to handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H04W36/385—Reselection control by fixed network equipment of the core network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location

Definitions

  • the present application relates to the field of communications, and in particular, to a method and apparatus for service migration.
  • a mobile communication network using a service architecture such as a 5G Core Network (5GC)
  • this type of mobile communication network can support the International Telecommunication Union by adopting a virtualized deployment of service architecture and service applications.
  • International Telecommunication Union, ITU defines three application scenarios: enhanced mobile broadband, large connections and low latency and high reliability scenarios.
  • related low-latency services need to be deployed at the edge of the network to eliminate delays caused by transmission; in addition, for high-traffic services such as virtual reality (VR) and augmented reality ( Augmented Reality (AR) also tends to be deployed at the edge of the network.
  • VR virtual reality
  • AR Augmented Reality
  • the data center is used as the infrastructure to virtualize the network element functions and service applications, and then deployed in the edge data center, the aggregation data center, and the core data center.
  • the terminal may be using a certain service application.
  • the 5G core network needs the service application that the terminal is using, from the current data. The center smoothly migrates to the target data center.
  • a common method may be to deploy the same service application in both data centers, when the terminal moves to the target. After the data center, directly use the services provided by the business applications of the target data center.
  • the present invention provides a method and an apparatus for service migration, which are used to solve the technical problem of high complexity of deployment of a service application and large workload of configuring a communication link caused by service migration and ensuring service continuity in the prior art. .
  • the session management function SMF receives the current location information of the terminal; wherein the SMF is located in the core data management center, and the first service and service message are added in the SMF; the first service is used to manage the context of the service application.
  • the service message is configured to configure a communication link of the service application using the first service;
  • the SMF determines, according to the current location information and the original location information of the terminal, whether it is necessary to switch the path of the service service being used for the terminal, and obtain a determination result;
  • the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center; wherein the original service application and the location Corresponding to the original location information, the target service application corresponds to the current location information; both the original service application and the target service application can provide the service service to the terminal, and both have subscribed to the first service.
  • the determining whether to switch the path of the service service being used for the terminal includes:
  • the SMF determines whether the current location information is the same as the original location information, and when not the same, the SMF determines that a path of the service service being used needs to be switched for the terminal.
  • the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center, including:
  • the service message is a message for notifying the service application to store the context of the specified service service in the service message;
  • the context recovery sub-service Recovering, by the context recovery sub-service, the context of the service service to the target service application, so that the path information of the service service is migrated from the original service application to the target service application; wherein
  • the context recovery sub-service is a sub-service in the first service, and is used to restore the context of the specified service service to the service application; the context sub-service restores the context to the service application by using the third sub-service message.
  • the third sub-service message is a message for notifying the service application to restore the context of the specified service service in the service message.
  • the SMF sends a context storage notification to the original service application by using the first sub-service message, including:
  • the SMF generates the context storage notification by using a context storage sub-service; wherein the context storage sub-service is a sub-service in the first service, and is configured to allow a service application to store a context of a specified service service, and return Giving the SMF;
  • the SMF sends the context storage notification to the original UPF through the first sub-service message, so that the original UPF will send the context storage notification to the original service application.
  • receiving the original service application and storing, according to the context, the context of the service service returned by the notification, including:
  • the SMF obtains a context of the service service from an original UPF of the original service application by using a context request sub-service; wherein the context request sub-service is a sub-service in the first service, and is used to send the service
  • the application provides a service that returns a context, the context request sub-service returns a context to the SMF through a second sub-service message, and the second sub-service message is in the service message, used to notify the SMF to receive the specified service service Contextual message.
  • the method further includes:
  • the SMF registers the first service in the original UPF and the target UPF;
  • the SMF has accepted the subscription of the first service by the original service application by the original UPF, and the SMF has accepted the target application's subscription to the first service by using the target UPF.
  • the embodiment of the present application provides an apparatus for service migration, where the apparatus is applied to a session management function SMF, including:
  • a receiving unit configured to receive current location information of the terminal, where the SMF is located in a core data management center, and a first service and a service message are added in the SMF; the first service is used to perform context on the service application. Management; the service message is configured to configure a communication link of the service application using the first service;
  • a determining unit configured to determine, according to the current location information and the original location information of the terminal, whether to switch the path of the service service being used for the terminal, and obtain a determination result
  • a migration unit configured to: when the determination result is yes, migrate the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center; wherein the original service application Corresponding to the original location information, the target service application corresponds to the current location information; both the original service application and the target service application can provide the service service to the terminal, and both have subscribed to the First service.
  • the determining when determining whether the path of the service service being used is required to be used for the terminal, is used to:
  • the migration unit when the path information of the service service is migrated from the original service application of the original edge data center to the target service application of the target edge data center, the migration unit is specifically configured to:
  • the first sub-service message Transmitting, by the first sub-service message, a context storage notification to the original service application, and receiving the original service application, storing, according to the context, a context of the service service returned by the notification; wherein the first sub-service message is In the service message, a message for notifying a service application to store a context of a specified service service;
  • the context recovery sub- The service is a sub-service in the first service, and is used to restore a context of the specified service service to the service application;
  • the context sub-service restores the context to the service application by using the third sub-service message, the third The sub-service message is a message in the service message for informing the service application to restore the context of the specified service service.
  • the migration unit is specifically configured to:
  • the context storage sub-service is a sub-service in the first service, configured to allow a service application to store a context of a specified service service, and return the SMF;
  • the migration unit when the original service application is received, and the context of the service service returned by the notification is stored, the migration unit is specifically configured to:
  • the context request sub-service is a sub-service in the first service, and is configured to provide a return to the service application a service of the context requesting the sub-service to return the context to the SMF by the second sub-service message, the second sub-service message being the service message for notifying the SMF of the context of the specified service service Message.
  • the migration unit before migrating the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center, the migration unit is further configured to:
  • the subscription of the first service by the original service application has been accepted by the original UPF, and the SMF has accepted the subscription of the first service by the target application through the target UPF.
  • an embodiment of the present application provides an SMF, including: at least one memory and at least one processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, implementing the first aspect The steps of the method.
  • an embodiment of the present application provides a computer readable non-volatile storage medium, where a computer program is stored thereon, where the computer program is executed by a processor to implement the method of the first aspect. step.
  • the embodiments of the present application have at least the following technical effects:
  • the first service of the SMF can be subscribed by the service application, so that the terminal can use the terminal through the SMF during the process of moving.
  • the business service migrates from the original business application of the original edge data center to the target business application of the target edge data center, thereby realizing the recovery of the operational status of the business service on the target business application side, and then the SMF can be based on the standard third generation partner program.
  • the 3rd Generation Partnership Project (3GPP) protocol process performs the switching of the service path. After the service service is accessed to the target service application, since the context of the service service has been restored in the target service application, the terminal can use the service service. Continuity.
  • the change of the path of the service service is completed under the control of the SMF, so that the SMF sends a context storage notification to the service application before the path change of the service service, so that the original service application passes the context requester.
  • the service sends the context of the business service to the target business application corresponding to the target UPF of the target data center, thereby avoiding the need for direct communication between the original business application and the target business application, and the need to deploy the shared database, thereby changing the original service.
  • Application and target business applications can easily and conveniently complete the migration of terminal business services by subscribing to the first service.
  • the UPF can be flexibly deployed in a 5G network, for example, it can be deployed in a core data center, a converged data center, an edge data center, or a wireless access cloud, and the current 3GPP network architecture does not support deployment of the same infrastructure with the UPF.
  • the service application subscribes to the service published by each network function of the core network.
  • a service management related interface ie, service management message
  • the service management function is added in the UPF, thereby
  • the 5G core network and other network elements can use the UPF as a proxy, and then publish the network service (that is, the first service) through the UPF, so that the service application deployed in the edge data center can subscribe to the service published by each network function of the core network.
  • Figure 1 is a service architecture diagram of a 5G network
  • 2A is a migration plan diagram of a terminal migrating from a original data center to a target data center;
  • 2B is a schematic diagram of acquiring a service service context when the terminal migrates from the original data center to the target data center;
  • FIG. 3 is a flowchart of a service migration according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of migration of a service service of a terminal from a data center to a target data center according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a service migration according to an embodiment of the present disclosure.
  • the embodiment of the present application provides a method and an apparatus for service migration, which solves the problem of high complexity of deploying service applications and large workload of configuring communication links caused by service migration and ensuring service continuity in the prior art. problem.
  • the 5G core network is split into multiple network element functions.
  • the main network element functions include Access and Mobility Management Function (AMF) and session management (Session Management). Function, SMF), User Plane Function (UPF), etc.
  • AMF Access and Mobility Management Function
  • SMF Session Management
  • UPF User Plane Function
  • AMF is responsible for access and mobility management. Its main functions are: NAS encryption and integrity protection, registration management, connection management, reachability management, mobility management, session management message transmission, access authentication, etc.
  • the SMF is mainly responsible for session management. Its main functions are: session management, session establishment, modification, and release. For example, tunnel maintenance between UPF and Access Network (AN) nodes, UE IP address allocation and management, and user plane.
  • AN Access and Access Network
  • UPF User Plane, UP
  • function selection and control configuration of UPF traffic steering and routing of traffic to the correct destination
  • UPF is responsible for user packet forwarding, its main functions are: routing and forwarding of data packets, Quality of Service (QoS) processing of data packets, detection of data packets, QoS policy enforcement, traffic statistics, and reporting.
  • QoS Quality of Service
  • both the network function and the service application can be deployed in one data center.
  • the service path is usually not required.
  • Switching to the service application when the terminal moves from the area covered by one data center to the area covered by another data center, the network can maintain the continuity of the service by inserting the service plane function UPF, as shown in Figure 2A:
  • the target UPF located at the target edge data center is inserted into the service path to make the terminal.
  • the routing of service transmission is increased, and the traffic between the original edge data center and the target edge data center is also increased.
  • the service service used by the terminal since the service service used by the terminal usually has a context associated with it, even if the same application is used to provide the same service service for the terminal, in the process of switching the service application, the service application needs to be performed. The interaction enables the target business application to obtain the context of the terminal in the original business application.
  • the SMF selects the target UPF located in the target edge data center for the session of the terminal, releases the original UPF in the original edge data center, and configures the offload rule of the target UPF.
  • the service service flow accessing the original business application is offloaded to the target business application. Due to the service application, there may be a context related to the service service. Therefore, after the service service of the terminal is migrated from the original service application to the target service application, the context of the service service needs to be migrated from the original service application to the target service application. Solutions:
  • Solution 1 The target service application directly communicates with the original service application, and sends a context request, and the original service application sends the context to the target service application in the response message, as shown in 1a/2a in FIG. 2B.
  • Solution 2 The original business application and the target business application share the external storage, and the original business application stores the running context in a public database, and the target business application obtains the user's context from the database, and restores the running state of the service, as shown in FIG. 2B. 1b/2b is shown.
  • solution 1 needs to establish a communication link between service applications, and the number of communication links will increase as the number of edge data centers increases, and if a service application is deployed in the edge data center, it needs to be modified.
  • the link information of the same service application may be migrated to multiple data centers of the service application, which complicates the deployment configuration of the service application.
  • multiple shared data databases accessible by the edge data center need to be deployed.
  • the service application needs to store the context in the shared database.
  • the implementation of the service application has limitations and cannot be applied to all service applications.
  • Providing a method for service migration comprising: a session management function SMF receiving current location information of a terminal; wherein the SMF is located in a core data management center, and a first service and a service message are added in the SMF; the first service is used for the service application Performing context management; the service message is used to configure a communication link of the service application using the first service; and the SMF determines whether it is necessary to switch the path of the service service being used for the terminal based on the current location information and the original location information of the terminal.
  • the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center; wherein the original service application corresponds to the original location information, and the target The business application corresponds to the current location information; both the original business application and the target business application can provide business services for the terminal, and both have subscribed to the first service.
  • the first service of the SMF can be subscribed by the service application, so that the terminal can use the SMF to use the service service that the terminal is using during the mobile process.
  • the original service application of the original edge data center is migrated to the target service application of the target edge data center, thereby realizing the recovery of the service state of the service service on the target service application side, and then the SMF can perform the service path switching according to the standard 3GPP protocol flow.
  • an embodiment of the present application provides a method for service migration, and the processing procedure of the method is as follows.
  • Step 301 The session management function SMF receives current location information of the terminal; wherein the SMF is located in the core data management center, and the first service and service message are added in the SMF; the first service is used to manage the context of the service application; the service message A communication link for configuring a service application to use the first service.
  • the SMF is responsible for session management.
  • the main functions are: session management, session establishment, modification, and release. This includes tunnel maintenance between UPF and AN nodes, UE IP address allocation and management, UP function selection and control, configuration of UPF traffic steering, routing of traffic to the correct destination, and so on.
  • the service application for providing service services to the terminal is generally deployed in the edge data management center, and the SMF responsible for managing the session of the terminal is located in the core data management center.
  • the service application deployed in the edge data management is deployed. There is no direct interface between the SMF and the SMF located in the core data management center. Therefore, the service application located in the edge data management center cannot directly subscribe to the service published by the SMF.
  • the first service needs to be added in the SMF to manage the context of the service application.
  • the first service includes the following main services: a context storage sub-service, a context request sub-service, and a context recovery sub-service; wherein the context storage sub-service is configured to allow the business application to store the context of the specified business service and return to the SMF
  • the context request sub-service is configured to provide a service that returns a context to the business application, and the context recovery sub-service is used to restore the context of the specified business service to the business application.
  • the first service is not limited to the above three sub-services, and those skilled in the art may, after understanding the above ideas of the present application, add other sub-services as needed, or modify the sub-services, etc. Apply for the content to be protected.
  • a service message may be further added to the SMF for configuring a communication link of the service application using the first service.
  • the first service message mainly includes the following items: a first sub-service message, a second sub-service message, and a third sub-service message.
  • the first sub-service message is used to notify the service application to store the message of the context of the specified service service
  • the second sub-service message is used to notify the SMF to receive the message of the context of the specified service service
  • the third sub-service message is used to notify the service application to recover.
  • service message is not limited to the above three sub-service messages.
  • those skilled in the art may add other sub-service messages as needed, or modify the sub-service messages. Depart from the content to be protected by this application.
  • the service application of the edge data center To enable the service application of the edge data center to receive the service message and respond according to the information carried in the message, it is also required to specify a response corresponding to each sub-service message in the service message in the UPF deployed in the edge data center.
  • the mechanism (which can also be considered part of the service message) is such that the UPF passes the message to the business application that is subscribed to the first service in the same edge data center.
  • the service application located in the edge data center can also subscribe to the first service to the SMF through the local UPF.
  • the UPF located in the edge data adds a service management function to the UPF in order to cooperate with the first service and process the local service application to subscribe to the first service.
  • the service management functions mainly include: service registration sub-function, service subscription sub-function, service notification sub-function, and service request sub-function.
  • the service registration sub-function is used to process the SMF service registration request received by the UPF, and store the parameters of the SMF and the published service list in the local.
  • the service notification sub-function is configured to process the SMF service message received by the UPF, and according to the session ID carried in the service message, and the packet filter configured when the protocol data unit (PDU) session is established, and provide the service application. Subscription information, and send the service message to the business application subscribed to the first service.
  • PDU protocol data unit
  • the service request sub-function is configured to process the service request of the service application, and send the service request encapsulated in the interface between the SMF and the UPF (ie, the response message of the service message) to the corresponding SMF.
  • the service request usually includes the session ID, the requested service name, and related parameters.
  • the service published by the SMF can be registered in the UPF, so that the service application can subscribe to the corresponding service as needed, and after subscribing to the service, the SMF can notify the corresponding change of the terminal.
  • Business applications that enable business applications to perform appropriate operations.
  • the application adds the first service and service message in the SMF, so that the service message becomes an added service management interface between the SMF of the core data center and the UPF of the edge data center, and the service management function is added in the UPF, so that the SMF can
  • the first service is advertised to the business application through the UPF, and the business application can also subscribe to the first service through the UPF.
  • the SMF can freely switch the service application for the terminal through the service management function of the first service, the service message, and the UPF.
  • the terminal periodically reports its location message to the core network. For example, the terminal reports its location message to the core network through the base station, so that the SMF can obtain various information of the terminal through the AMF. Further, the current location information of the terminal can be obtained.
  • step 102 After obtaining the current location information of the terminal, step 102 can be performed.
  • Step 302 The SMF determines whether it is necessary to switch the path of the service service being used for the terminal based on the current location information and the original location information of the terminal, and obtain a determination result.
  • the SMF After obtaining the current location information of the terminal, the SMF needs to determine whether the edge data center where the terminal is located changes according to the current location information. If the change occurs, the terminal needs to switch the path of the service service being used in time for the terminal to continuously use. Business services.
  • the SMF determines whether the path of the service service to be used for the terminal needs to be switched. Specifically, the SMF determines whether the current location information of the terminal is the same as the original location information of the terminal. When not the same, the SMF determines that the service service needs to be switched for the terminal. path of.
  • step 103 can be performed.
  • Step 303 When the judgment result is yes, the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center; wherein the original service application corresponds to the original location information, and the target The business application corresponds to the current location information; both the original business application and the target business application can provide business services for the terminal, and both have subscribed to the first service.
  • the SMF Before the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center, the SMF needs to register the first service in the original UPF and the target UPF; and the SMF has passed the original UPF.
  • the original business application is subscribed to the first service, and the SMF has accepted the target application's subscription to the first service through the target UPF.
  • the service registration message of the first service needs to be sent to the service registration sub-function of the UPF through the SMF service registration request of the service message; during the operation, if the UPF is added in the edge data center, The SMF also needs to send a service registration message to the newly added UPF. In this way, it is ensured that the business applications in each edge data center can subscribe to the first service provided by the SMF. In this way, the SMF can provide its first service to subscribe and serve to local business applications through the UPF in the edge data center.
  • the SMF After the SMF determines that the path of the service service to be used for the terminal needs to be switched, the SMF sends a non-access stratum (NAS) message to the terminal through the AMF, so that the communication link between the terminal and the original service application is broken. Open, the end of the session with the original business application.
  • the NAS message includes the PDU session ID that the terminal needs to relocate, and indicates that the PDU session needs to be re-established to the same DN.
  • the terminal ends the session with the original service application, that is, the terminal performs a PDU session release process with the original service application.
  • the terminal After the terminal ends the session with the original business application, it can begin to establish a session with the target business application.
  • the SMF migrates the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center, and performs the following steps:
  • the SMF sends a context storage notification to the original service application by using the first sub-service message, and receives the original service application, and stores the context of the returned service service based on the context storage; wherein the first sub-service message is used in the service message to notify the service.
  • the application stores a message that specifies the context of the business service.
  • the SMF sends a context storage notification to the original service application by using the first sub-service message. Specifically, the SMF first generates a context storage notification by using the context storage sub-service. Then, the first sub-service message is used to send the context storage notification to the original UPF. Causes the original UPF to send a context storage notification to the original business application.
  • the context storage subservice is a subservice in the first service, and is used to allow the service application to store the context of the specified service service and return it to the SMF.
  • the original service application can be received, and the context of the service service returned by the notification is stored based on the context, specifically: the SMF obtains the context of the service service from the original UPF of the original service application through the context request sub-service; wherein the context request sub-service is a sub-service in a service for providing a service back to the service application, the context request sub-service returns the context to the SMF through the second sub-service message, and the second sub-service message is in the service message, used to notify the SMF A message that receives the context of a specified business service.
  • the SMF restores the context of the service service to the service target application through the context recovery sub-service, so that the path information of the service service is migrated from the original service application to the target service application in the DN; wherein the context recovery sub-service is the first service.
  • Sub-service for restoring the context of the specified business service to the business application the context sub-service recovers the context to the business application through the third sub-service message, and the third sub-service message is used in the service message to notify the service Apply a message that restores the context of the specified business service.
  • the context of the service service is passed to the context migration request service of the SMF, and the context recovery notification service is delivered to the same service application corresponding to the target UPF, thereby implementing the target side service running state.
  • the SMF switches the path of the service application that supports the service service according to the 3GPP protocol flow.
  • the context of the service service has been restored in the new service application. Therefore, it is possible to ensure the continuity of the service service used by the terminal.
  • an apparatus for service migration is provided in an embodiment of the present application, and the apparatus is applied to an SMF.
  • the device includes:
  • the receiving unit 501 is configured to receive current location information of the terminal, where the SMF is located in a core data management center, and a first service and a service message are added in the SMF; the first service is used to perform context on the service application. Performing management; the service message is configured to configure a communication link of the service application using the first service;
  • the determining unit 502 is configured to determine, according to the current location information and the original location information of the terminal, whether to switch the path of the service service being used for the terminal, and obtain a determination result;
  • the migration unit 503 is configured to: when the determination result is yes, migrate the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center; wherein the original service The application corresponds to the original location information, where the target service application corresponds to the current location information; both the original service application and the target service application can provide the service service to the terminal, and both subscribed to Said the first service.
  • the determining, by the determining unit 502, the determining unit 502 is specifically configured to: when it is determined that the terminal needs to switch the path of the service service being used by the terminal:
  • the migration unit 503 is specifically configured to:
  • the first sub-service message Transmitting, by the first sub-service message, a context storage notification to the original service application, and receiving the original service application, storing, according to the context, a context of the service service returned by the notification; wherein the first sub-service message is In the service message, a message for notifying a service application to store a context of a specified service service;
  • the context recovery sub- The service is a sub-service in the first service, and is used to restore a context of the specified service service to the service application;
  • the context sub-service restores the context to the service application by using the third sub-service message, the third The sub-service message is a message in the service message for informing the service application to restore the context of the specified service service.
  • the migration unit 503 is specifically configured to:
  • the context storage sub-service is a sub-service in the first service, configured to allow a service application to store a context of a specified service service, and return the SMF;
  • the migration unit 503 is specifically configured to:
  • the context request sub-service is a sub-service in the first service, and is configured to provide a return to the service application a service of the context requesting the sub-service to return the context to the SMF by the second sub-service message, the second sub-service message being the service message for notifying the SMF of the context of the specified service service Message.
  • the migration unit 503 before migrating the path information of the service service from the original service application of the original edge data center to the target service application of the target edge data center, the migration unit 503 is further configured to:
  • the subscription of the first service by the original service application has been accepted by the original UPF, and the SMF has accepted the subscription of the first service by the target application through the target UPF.
  • the embodiment of the present application further provides an SMF, including: at least one memory and at least one processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the foregoing service migration method is implemented.
  • SMF Session Management Function
  • the embodiment of the present application further provides a computer readable non-volatile storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the steps of the foregoing service migration method.
  • the first service of the SMF can be subscribed by the service application, so that the terminal can use the terminal through the SMF during the process of moving.
  • the service service is migrated from the original service application of the original edge data center to the target service application of the target edge data center, thereby realizing the recovery of the service state of the service service on the target service application side, and then the SMF can perform the service according to the standard 3GPP protocol flow.
  • the continuity of the service service can be ensured by the terminal because the context of the service service has been restored in the target service application.
  • the change of the path of the service service is completed under the control of the SMF, so that the SMF sends a context storage notification to the service application before the path change of the service service, so that the original service application passes the context requester.
  • the service sends the context of the business service to the target business application corresponding to the target UPF of the target data center, thereby avoiding the need for direct communication between the original business application and the target business application, and the need to deploy the shared database, thereby changing the original service.
  • Application and target business applications can easily and conveniently complete the migration of terminal business services by subscribing to the first service.
  • the UPF can be flexibly deployed in a 5G network, for example, it can be deployed in a core data center, a converged data center, an edge data center, or a wireless access cloud, and the current 3GPP network architecture does not support deployment of the same infrastructure with the UPF.
  • the service application subscribes to the service published by each network function of the core network.
  • a service management related interface ie, service management message
  • the service management function is added in the UPF, thereby
  • the 5G core network and other network elements can use the UPF as a proxy, and then publish the network service (that is, the first service) through the UPF, so that the service application deployed in the edge data center can subscribe to the service published by each network function of the core network.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请公开了一种业务迁移的方法及装置，用以解决5G网络中终端跨数据中心移动时的业务应用连续性问题。包括：SMF接收终端的当前位置信息；其中，SMF位于核心数据管理中心，在SMF中增设了第一服务和服务消息；第一服务用于对业务应用进行上下文进行管理；服务消息用于配置业务应用使用所述第一服务的通信链路；SMF基于当前位置信息与终端的原位置信息，判断是否需要为终端切换正在使用的业务服务的路径，当判断结果为是时，SMF将业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，原业务应用与目标业务应用都能够为终端提供业务服务，且都已订阅第一服务。

Description

一种业务迁移的方法及装置
本申请要求在2018年2月11日提交中国专利局、申请号为201810142709.3、申请名称为“一种业务迁移的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其是涉及一种业务迁移的方法及装置。
背景技术
随着移动通信技术的不断发展，人们在享受着科技进步的同时，也承受着科技进步所带来的新的技术问题。
在采用服务化架构的移动通信网络中，如：5G核心网(5G Core Network，5GC)，由于是采用了服务架构和业务应用的虚拟化部署，让这类移动通信网络能够支持国际电信联盟(International Telecommunication Union，ITU)定义的三大应用场景：增强移动宽带，大连接和低时延高可靠场景。其中，为支持低时延场景，相关的低时延业务需要部署于网络边缘，从而消除传输带来的时延；此外，对于大流量业务，如虚拟现实(Virtual Reality，VR)、增强现实(Augmented Reality，AR)，也倾向于部署于网络边缘。
由于在5G网络中，是以数据中心作为基础设施，将网元功能和业务应用虚拟化之后，部署于边缘数据中心、汇聚数据中心和核心数据中心。这就使得，终端在移动的过程中，可能从一个数据中心的基站覆盖的区域，移动到另外一个数据中心的基站覆盖的区域。而在移动的过程中，终端可能正在使用某一业务应用，为了让使用终端的用户不会因为数据中心的切换而降低使用体验，就需要5G核心网将终端正在使用的业务应用，从当前数据中心平滑的迁移到目标数据中心。
在现有技术中，为了让终端正在使用的业务应用，从当前数据中心平滑的迁移到目标数据中心，常用的方法可以是在两个数据中心中都部署相同的业务应用，当终端移动到目标数据中心之后，直接使用目标数据中心的业务应用所提供的服务。
但在使用这种方法的过程中，当终端移动到目标数据中心时，需要在目标数据中心的业务应用中恢复终端在当前数据中心的业务应用中的上下文，这就需要建立当前数据中心与目标数据中心的业务应用之间的通信链路。而在5G网络中，随着边缘数据中心数量的增加、业务应用类型的增加，需要建立的通信链路也会随之呈几何倍数的增加，这将导致 在边缘数据中心部署业务应用时，不仅增加了部署业务应用的复杂性，还使在迁移业务应用的过程中需要配置的业务应用的通信链路的工作量呈几何倍数的增加。
因此，如何在保证业务连续性，实现业务迁移的同时，有效的降低业务应用的部署复杂度及配置其通信链路的工作量，成为一个亟待解决的技术问题。
发明内容
本申请提供一种业务迁移的方法及装置，用以解决现有技术中为实现业务迁移和保证业务连续性导致的业务应用的部署复杂度高及配置其通信链路的工作量大的技术问题。
第一方面，为解决上述技术问题，本申请实施例提供的一种业务迁移的方法的技术方案如下：
会话管理功能SMF接收终端的当前位置信息；其中，所述SMF位于核心数据管理中心，在所述SMF中增设了第一服务和服务消息；所述第一服务用于对业务应用进行上下文进行管理；所述服务消息用于配置业务应用使用所述第一服务的通信链路；
所述SMF基于所述当前位置信息与所述终端的原位置信息，判断是否需要为所述终端切换正在使用的业务服务的路径，获得判断结果；
当所述判断结果为是时，所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，所述原业务应用与所述原位置信息对应，所述目标业务应用与所述当前位置信息对应；所述原业务应用与所述目标业务应用都能够为所述终端提供所述业务服务，且都已订阅所述第一服务。
可选的，所述判断是否需要为所述终端切换正在使用的业务服务的路径，包括：
判断所述当前位置信息与所述原位置信息是否相同，在不相同时，所述SMF确定需要为所述终端切换正在使用的业务服务的路径。
可选的，所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用，包括：
所述SMF通过第一子服务消息向所述原业务应用发送上下文存储通知，并接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文；其中，所述第一子服务消息为所述服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息；
所述SMF通过上下文恢复子服务将所述业务服务的上下文恢复至所述目标业务应用，以使所述业务服务的路径信息从所述原业务应用迁移到所述目标业务应用；其中，所述上下文恢复子服务为所述第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；所述上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，所述第三子 服务消息为所述服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
可选的，所述SMF通过第一子服务消息向所述原业务应用发送上下文存储通知，包括：
所述SMF通过上下文存储子服务，生成所述上下文存储通知；其中，所述上下文存储子服务为所述第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF；
所述SMF通过所述第一子服务消息，将所述上下文存储通知发送给所述原UPF，以使所述原UPF将使所述上下文存储通知发送给所述原业务应用。
可选的，接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文，包括：
所述SMF通过上下文请求子服务从所述原业务应用的原UPF获得所述业务服务的上下文；其中，所述上下文请求子服务为所述第一服务中的子服务，用于向所述业务应用提供返回上下文的服务，所述上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，所述第二子服务消息为所述服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
可选的，在所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用之前，还包括：
所述SMF在所述原UPF和所述目标UPF中注册所述第一服务；
所述SMF已通过所述原UPF接受所述原业务应用对所述第一服务的订阅，及所述SMF已通过所述目标UPF接受所述目标应用对所述第一服务的订阅。
第二方面，本申请实施例提供了一种用于业务迁移的装置，所述装置应用于会话管理功能SMF，包括：
接收单元，用于接收终端的当前位置信息；其中，所述SMF位于核心数据管理中心，在所述SMF中增设了第一服务和服务消息；所述第一服务用于对业务应用进行上下文进行管理；所述服务消息用于配置业务应用使用所述第一服务的通信链路；
判断单元，用于基于所述当前位置信息与所述终端的原位置信息，判断是否需要为所述终端切换正在使用的业务服务的路径，获得判断结果；
迁移单元，用于当所述判断结果为是时，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，所述原业务应用与所述原位置信息对应，所述目标业务应用与所述当前位置信息对应；所述原业务应用与所述目标业务应用都能够为所述终端提供所述业务服务，且都已订阅所述第一服务。
可选的，所述判断是否需要为所述终端切换正在使用的业务服务的路径时，所述判断单元具体用于：
判断所述当前位置信息与所述原位置信息是否相同，在不相同时，确定需要为所述终端切换正在使用的业务服务的路径。
可选的，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用时，所述迁移单元具体用于：
通过第一子服务消息向所述原业务应用发送上下文存储通知，并接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文；其中，所述第一子服务消息为所述服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息；
通过上下文恢复子服务将所述业务服务的上下文恢复至所述目标业务应用，以使所述业务服务的路径信息从所述原业务应用迁移到所述目标业务应用；其中，所述上下文恢复子服务为所述第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；所述上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，所述第三子服务消息为所述服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
可选的，通过第一子服务消息向所述原业务应用发送上下文存储通知时，所述迁移单元具体用于：
通过上下文存储子服务，生成所述上下文存储通知；其中，所述上下文存储子服务为所述第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF；
通过所述第一子服务消息，将所述上下文存储通知发送给所述原UPF，以使所述原UPF将使所述上下文存储通知发送给所述原业务应用。
可选的，接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文时，所述迁移单元具体用于：
通过上下文请求子服务从所述原业务应用的原UPF获得所述业务服务的上下文；其中，所述上下文请求子服务为所述第一服务中的子服务，用于向所述业务应用提供返回上下文的服务，所述上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，所述第二子服务消息为所述服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
可选的，在将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用之前，所述迁移单元还用于：
在所述原UPF和所述目标UPF中注册所述第一服务；
已通过所述原UPF接受所述原业务应用对所述第一服务的订阅，及所述SMF已通过所述目标UPF接受所述目标应用对所述第一服务的订阅。
第三方面，本申请实施例提供一种SMF，包括：至少一个存储器和至少一个处理器，其中，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时实现上述第一方面所述方法的步骤。
第四方面，本申请实施例提供一种计算机可读非易失性存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现上述第一方面所述方法的步骤。
通过本申请实施例的上述一个或多个实施例中的技术方案，本申请实施例至少具有如下技术效果：
在本申请提供的实施例中，通过在SMF中增设第一服务和服务管理消息，让SMF的第一服务能够被业务应用订阅，使得终端在移动的过程中，通过SMF能够将终端正在使用的业务服务从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用，从而实现在目标业务应用侧恢复业务服务的运行状态的，随后SMF便可依据标准的第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)协议流程，进行业务路径的切换，在将业务服务接入到目标业务应用之后，由于目标业务应用中已经恢复了业务服务的上下文，因此能够保证终端使用业务服务的连续性。
进一步的，通过使用上述技术方案，让业务服务的路径的变更在SMF的控制下完成，使得SMF在业务服务的路径变更之前便向业务应用发送上下文存储通知，进而让原业务应用通过上下文请求子服务，将业务服务的上下文发送给目标数据中心的目标UPF对应的目标业务应用，从而避免了原业务应用与目标业务应用之间直接通信的需求，以及部署共享数据库的需求，改由让原业务应用和目标业务应用通过订阅第一服务，便能简单、方便的完成对终端业务服务的迁移。
进一步的，由于在5G网络中，UPF可以灵活部署，如可以部署于核心数据中心、汇聚数据中心、边缘数据中心或者无线接入云，而目前3GPP网络架构不支持与UPF部署于同一基础设施的业务应用订阅核心网各网络功能发布的服务，故通过采用本申请提出的实施例，在SMF和UPF之间增加服务管理相关的接口(即服务管理消息)，在UPF增加服务管理功能，从而让5G核心网与其它网元可以将UPF作为代理，进而通过UPF发布网络服务(即第一服务)，从而让部署于边缘数据中心的业务应用能够订阅核心网各网络功能发布的服务。
附图说明
图1为5G网络的服务架构图；
图2A为终端从原数据中心迁移到目标数据中心的迁移方案图；
图2B为终端从原数据中心迁移到目标数据中心时，获取业务服务上下文的方案图；
图3为本申请实施例提供的一种业务迁移的流程图；
图4为本申请实施例提供的终端的业务服务从原数据中心迁移到目标数据中心的迁移示意图；
图5为本申请实施例提供的一种业务迁移的结构示意图。
具体实施方式
本申请实施列提供一种业务迁移的方法及装置，以解决现有技术中为实现业务迁移和保证业务连续性导致的业务应用的部署复杂度高及配置其通信链路的工作量大的技术问题。
为了使本领域的技术人员能更为清楚的理解本申请的技术方案，现首先介绍本申请实施例的技术背景。
请参见图1，为5G网络采用的服务架构。
在图1的服务架构中，将5G核心网拆分为多个网元功能，主要的网元功能有接入和移动性管理功能(Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)等。其中，AMF负责接入和移动性管理，它的主要功能有：NAS加密和完整性保护、注册管理、连接管理、可达性管理、移动管理、会话管理消息的传输、接入鉴权等；SMF主要负责会话管理，其主要功能有：会话管理、会话建立、修改和释放，如，UPF和接入网(Access Network，AN)节点之间的隧道维护、UE IP地址分配和管理、用户面(User Plane，UP)功能的选择和控制、配置UPF的流量转向并将流量路由到正确的目的地等；UPF则负责用户报文的转发，其主要功能有：数据报文的路由和转发、数据报文的服务质量(Quality of Service，QoS)处理、数据报文的检测和QoS策略执行、流量统计和上报等。
由于5G网络是以数据中心为基础设施进行的部署，所以在一个数据中心内可以既部署网络功能，又部署业务应用，当终端在一个数据中心覆盖的范围内移动时，通常不需要进行业务路径和业务应用的切换；当终端从一个数据中心覆盖的区域移动到另外一个数据中心覆盖的区域时，网络可以通过插入业务面功能UPF的方式，保持业务的连续性，如图2A所示：
当终端由原边缘数据中心覆盖的区域，移动到目标边缘数据中心覆盖的区域之后，为 保持终端使用的业务服务的连续性，会在业务路径中插入位于目标边缘数据中心的目标UPF，使终端使用的业务应用保持不变。
但，采用这种方式却增加了业务传输的路由，同时也增大了原边缘数据中心和目标边缘数据中心之间的业务流量。要解决该问题，就需要将终端业务由原边缘数据中心切换到目标边缘数据中心。而在5G核心网中，由于终端所使用的业务服务通常具有与之相关的上下文，所以即使使用相同的应用为终端提供同一业务服务，在业务应用切换的过程中，也需要业务应用之间进行交互，使目标业务应用获取终端在原业务应用中的上下文。
请参见图2B，终端移动到目标边缘数据中心覆盖的区域之后，SMF为终端的会话选择位于目标边缘数据中心的目标UPF，释放原边缘数据中心中的原UPF，同时配置目标UPF的分流规则，将访问原业务应用的业务服务流分流到目标业务应用。由于业务应用，可能存在业务服务相关的上下文，所以当终端的业务服务从原业务应用迁移到目标业务应用之后，需要将业务服务的上下文从原业务应用迁移到目标业务应用，目前常用的有两种方案：
方案一：目标业务应用与原业务应用直接通信，发送上下文请求，原业务应用在响应消息中将上下文发送给目标业务应用，如图2B中的1a/2a所示。
方案二：原业务应用和目标业务应用共享外部存储，原业务应用将运行的上下文存储在公共的数据库中，目标业务应用从数据库中获取用户的上下文，恢复业务的运行状态，如图2B中的1b/2b所示。
但是，上述方案中，方案一需要在业务应用之间建立通信链路，而通信链路的数目将随着边缘数据中心数量的增加而增加，并且如果在边缘数据中心部署业务应用，还需要修改可能迁移到该业务应用的多个数据中心相同业务应用的链路信息，从而使得业务应用部署配置复杂。而方案二，则需要部署多个边缘数据中心可访问的共享数据库，业务应用需要将上下文存储在共享数据库中，对业务应用的实现有局限性，不能适用于所有的业务应用。
鉴于此，本申请实施例中的技术方案为解决上述的技术问题，总体思路如下：
提供一种业务迁移的方法，包括：会话管理功能SMF接收终端的当前位置信息；其中，SMF位于核心数据管理中心，在SMF中增设了第一服务和服务消息；第一服务用于对业务应用进行上下文进行管理；服务消息用于配置业务应用使用所述第一服务的通信链路；SMF基于当前位置信息与终端的原位置信息，判断是否需要为终端切换正在使用的业务服务的路径，获得判断结果；当判断结果为是时，SMF将业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，原业务应用与 原位置信息对应，目标业务应用与当前位置信息对应；原业务应用与目标业务应用都能够为终端提供业务服务，且都已订阅第一服务。
由于在上述方案中，通过在SMF中增设第一服务和服务管理消息，让SMF的第一服务能够被业务应用订阅，使得终端在移动的过程中，通过SMF能够将终端正在使用的业务服务从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用，从而实现在目标业务应用侧恢复业务服务的运行状态的，随后SMF便可依据标准的3GPP协议流程，进行业务路径的切换，在将业务服务接入到目标业务应用之后，由于目标业务应用中已经恢复了业务服务的上下文，因此能够保证终端使用业务服务的连续性。
为了更好的理解上述技术方案，下面通过附图以及具体实施例对本申请技术方案做详细的说明，应当理解本申请实施例以及实施例中的具体特征是对本申请技术方案的详细的说明，而不是对本申请技术方案的限定，在不冲突的情况下，本申请实施例以及实施例中的技术特征可以相互组合。
请参考图3，本申请实施例提供一种业务迁移的方法，该方法的处理过程如下。
步骤301：会话管理功能SMF接收终端的当前位置信息；其中，SMF位于核心数据管理中心，在SMF中增设了第一服务和服务消息；第一服务用于对业务应用进行上下文进行管理；服务消息用于配置业务应用使用第一服务的通信链路。
在5G核心网中，SMF负责会话管理，主要功能有：会话管理、会话建立、修改和释放。这就包括UPF和AN节点之间的隧道维护、UE IP地址分配和管理、UP功能的选择和控制、配置UPF的流量转向，将流量路由到正确的目的地等。
由于为终端提供业务服务的业务应用一般都部署在边缘数据管理中心，而负责对终端的会话进行管理的SMF则位于核心数据管理中心，在现有技术中，部署于边缘数据管理中的业务应用与位于核心数据管理中心的SMF之间是不存在直接的接口的，故位于边缘数据管理中心的业务应用不能直接订阅SMF发布的服务。
本申请为了能让位于边缘数据管理中心的业务应用能直接订阅SMF发布的服务，首先需要在SMF中增设了第一服务，用于对业务应用进行上下文进行管理。
第一服务包括以下几项主要服务：上下文存储子服务、上下文请求子服务、上下文恢复子服务；其中，上下文存储子服务用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF，上下文请求子服务用于向所述业务应用提供返回上下文的服务，上下文恢复子服务用于将指定的业务服务的上下文恢复到业务应用。
需要理解的是，第一服务不仅限于上述三种子服务，本领域的技术人员在了解本申请的上述思想之后，可以根据需要增设其它子服务，或对上述子服务进行修改等这些都不脱 离本申请所要保护的内容。
在为SMF增设了第一服务之后，还需要建立SMF与业务应用之间的通信链路，让它们之间能够互通消息。
具体的，可以进一步的为SMF增设服务消息，用于配置业务应用使用第一服务的通信链路。其中，第一服务消息主要包括以下几项消息：第一子服务消息、第二子服务消息、第三子服务消息。第一子服务消息用于通知业务应用存储指定的业务服务的上下文的消息，第二子服务消息用于通知SMF接收指定的业务服务的上下文的消息，第三子服务消息用于通知业务应用恢复指定的业务服务的上下文的消息。
需要理解的是，服务消息不仅限于上述三种子服务消息，本领域的技术人员在了解本申请的上述思想之后，可以根据需要增设其它子服务消息，或对上述子服务消息进行修改等这些都不脱离本申请所要保护的内容。
要使边缘数据中心的业务应用能够收到上述服务消息，并根据消息中携带的信息进行响应，还需要在部署于边缘数据中心的UPF中指定与上述服务消息中各子服务消息向对应的响应机制(这也可以认为是服务消息的一部分内容)，以便UPF将上述消息传递给与之位于同一边缘数据中心中已订阅了第一服务的业务应用。而位于边缘数据中心的业务应用，也可以通过本地的UPF向SMF订阅第一服务。
而位于边缘数据中的UPF为了配合第一服务及处理本地的业务应用订阅第一服务的各项事务，便在UPF中增设了服务管理功能。服务管理功能主要包括：服务注册子功能、服务订阅子功能、服务通知子功能、服务请求子功能。
具体的上述各子功能的详细介绍如下：
服务注册子功能，用于处理UPF收到的SMF服务注册请求，并将该SMF的标识、发布的服务列表等参数存储在本地中。
服务订阅子功能，用于处理业务应用的服务订阅消息，并将该订阅相关的参数，如业务应用的标识、订阅的服务名称、服务通知的统一资源定位符(Uniform Resource Locator，URL)等存储在本地中。
服务通知子功能，用于处理UPF收到的SMF服务消息，并依据服务消息中携带的会话ID，和协议数据单元(Protocol Data Unit，PDU)会话建立时配置的包过滤器，以及提供业务应用的订阅信息，并将服务消息发送给订阅了第一服务的业务应用。
服务请求子功能，用于处理业务应用的服务请求，并将服务请求封装在SMF与UPF之间的接口(即服务消息的响应消息)发送给对应的SMF。其中，服务请求中通常包含了会话ID、请求的服务名称及相关的参数等。
需要理解的是，服务管理功能不仅限于上述四种子功能，本领域的技术人员在了解本申请的上述思想之后，随着技术的进步，可以根据需要增设其它子功能，或对上述子功能进行修改等这些都不脱离本申请所要保护的内容。
通过在UPF中设立服务管理功能，便能让SMF发布的服务通过在UPF中进行注册，让业务应用可以根据需要订阅相应的服务，并且在订阅服务之后，SMF可以将终端的变化通知给对应的业务应用，使业务应用执行相应的操作。
故，本申请通过在SMF增加第一服务及服务消息，让服务消息成为核心数据中心的SMF与边缘数据中心的UPF之间所增加的服务管理接口，以及在UPF增加服务管理功能，让SMF可以将第一服务通过UPF发布给业务应用，而业务应用也可以通过UPF订阅第一服务。进而使得终端在移动的过程，SMF可以通过上述第一服务、服务消息、UPF的服务管理功能，自由的为终端切换业务应用。
终端在移动的过程中会定时向核心网上报其位置消息，例如，终端通过基站将其位置消息上报给核心网，这样SMF便能通AMF获得终端的各种信息。进而能够获得终端的当前位置信息。
在获得终端的当前位置信息之后，便可执行步骤102。
步骤302：SMF基于当前位置信息与终端的原位置信息，判断是否需要为终端切换正在使用的业务服务的路径，获得判断结果。
SMF获得终端的当前位置信息之后，需要根据当前位置信息判断终端所在的边缘数据中心是否发生了变化，如果发生了变化就需要及时为终端切换正在使用的业务服务的路径，以便终端能连续的使用业务服务。
故，判断是否需要为终端切换正在使用的业务服务的路径，具体为：SMF判断终端当前位置信息与终端的原位置信息是否相同，在不相同时，SMF确定需要为终端切换正在使用的业务服务的路径。
在SMF通过中的位置信息的变化，发现终端从原边缘数据中心移动到目标边缘数据中心，即可确定需要为终端切换正在使用的业务服务的路径。在确定需要为终端切换正在使用的业务服务的路径之后，便可执行步骤103。
步骤303：当判断结果为是时，SMF将业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，原业务应用与原位置信息对应，目标业务应用与当前位置信息对应；原业务应用与目标业务应用都能够为终端提供业务服务，且都已订阅第一服务。
在SMF将业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数 据中心的目标业务应用之前，还需要SMF在原UPF和目标UPF中注册第一服务；并且SMF已通过原UPF接受原业务应用对第一服务的订阅，及SMF已通过目标UPF接受目标应用对第一服务的订阅。
具体的，在SMF初始化完成之后，需要通过服务消息的SMF服务注册请求向UPF的服务注册子功能发送第一服务的服务注册消息；在运行期间，如果在边缘数据中心中又新增了UPF，SMF同样需要向新增的UPF发送服务注册消息。这样，才能确保每个边缘数据中心中的业务应用能够订阅到SMF提供的第一服务。通过这种方式SMF可以将其发布的第一服务通过个边缘数据中心中的UPF向本地的业务应用提供订阅及服务。
在SMF确定需要为终端切换正在使用的业务服务的路径之后，SMF通过AMF向终端发送非接入层(Non-access stratum，NAS)消息，以使终端与原业务应用之间的通信链路断开，即结束与原业务应用之间的会话。其中，NAS消息中包含了终端需要重新定位的PDU会话ID，并且指示需要将该PDU会话重新建立到相同的DN。终端结束与原业务应用之间的会话，即终端执行与原业务应用之间的PDU会话释放过程。
在终端结束与原业务应用之间的会话之后，便可以开始与目标业务应用建立会话了。
请参见图4，具体的，SMF将业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用，需要执行以下步骤：
首先，SMF通过第一子服务消息向原业务应用发送上下文存储通知，并接收原业务应用，基于上下文存储通知返回的业务服务的上下文；其中，第一子服务消息为服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息。
SMF通过第一子服务消息向原业务应用发送上下文存储通知，具体是SMF先通过上下文存储子服务，生成上下文存储通知；然后，再通过第一子服务消息，将上下文存储通知发送给原UPF，以使原UPF将上下文存储通知发送给原业务应用。其中，上下文存储子服务为第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给SMF。
之后，就可以接收原业务应用，基于上下文存储通知返回的业务服务的上下文，具体为：SMF通过上下文请求子服务从原业务应用的原UPF获得业务服务的上下文；其中，上下文请求子服务为第一服务中的子服务，用于向业务应用提供返回上下文的服务，上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，第二子服务消息为服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
其次，SMF通过上下文恢复子服务将业务服务的上下文恢复至业务目标应用，以使业务服务的路径信息在DN中从原业务应用迁移到目标业务应用；其中，上下文恢复子服务 为第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，第三子服务消息为服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
通过上述方式，在原业务应用收到上下文存储通知时，将业务服务的上下文通过SMF的上下文迁移请求服务，上下文恢复通知服务传递给目标UPF对应的相同的业务应用，从而实现目标侧业务运行状态的恢复，随后SMF依据3GPP协议流程，对为业务服务提供支持的业务应用的路径进行切换，当业务服务被接入到新的业务应用之后，由于新的业务应用中已经恢复了业务服务的上下文，因此能够保证终端使用业务服务的连续性。
基于同一发明构思，本申请一实施例中提供一种用于业务迁移的装置，该装置应用于SMF，该装置的业务迁移方法的具体实施方式可参见方法实施例部分的描述，重复之处不再赘述，请参见图5，该装置包括：
接收单元501，用于接收终端的当前位置信息；其中，所述SMF位于核心数据管理中心，在所述SMF中增设了第一服务和服务消息；所述第一服务用于对业务应用进行上下文进行管理；所述服务消息用于配置业务应用使用所述第一服务的通信链路；
判断单元502，用于基于所述当前位置信息与所述终端的原位置信息，判断是否需要为所述终端切换正在使用的业务服务的路径，获得判断结果；
迁移单元503，用于当所述判断结果为是时，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，所述原业务应用与所述原位置信息对应，所述目标业务应用与所述当前位置信息对应；所述原业务应用与所述目标业务应用都能够为所述终端提供所述业务服务，且都已订阅所述第一服务。
可选的，所述判断是否需要为所述终端切换正在使用的业务服务的路径时，所述判断单元502具体用于：
判断所述当前位置信息与所述原位置信息是否相同，在不相同时，确定需要为所述终端切换正在使用的业务服务的路径。
可选的，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用时，所述迁移单元503具体用于：
通过第一子服务消息向所述原业务应用发送上下文存储通知，并接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文；其中，所述第一子服务消息为所述服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息；
通过上下文恢复子服务将所述业务服务的上下文恢复至所述目标业务应用，以使所述业务服务的路径信息从所述原业务应用迁移到所述目标业务应用；其中，所述上下文恢复 子服务为所述第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；所述上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，所述第三子服务消息为所述服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
可选的，通过第一子服务消息向所述原业务应用发送上下文存储通知时，所述迁移单元503具体用于：
通过上下文存储子服务，生成所述上下文存储通知；其中，所述上下文存储子服务为所述第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF；
通过所述第一子服务消息，将所述上下文存储通知发送给所述原UPF，以使所述原UPF将使所述上下文存储通知发送给所述原业务应用。
可选的，接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文时，所述迁移单元503具体用于：
通过上下文请求子服务从所述原业务应用的原UPF获得所述业务服务的上下文；其中，所述上下文请求子服务为所述第一服务中的子服务，用于向所述业务应用提供返回上下文的服务，所述上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，所述第二子服务消息为所述服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
可选的，在将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用之前，所述迁移单元503还用于：
在所述原UPF和所述目标UPF中注册所述第一服务；
已通过所述原UPF接受所述原业务应用对所述第一服务的订阅，及所述SMF已通过所述目标UPF接受所述目标应用对所述第一服务的订阅。
另外，本申请实施例还提供一种SMF，包括：至少一个存储器和至少一个处理器，其中，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时实现上述业务迁移方法的步骤，该SMF的业务迁移方法的具体实施方式可参见方法实施例部分的描述，重复之处不再赘述。
本申请实施例还提供一种计算机可读非易失性存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述业务迁移方法的步骤。
在本申请提供的实施例中，通过在SMF中增设第一服务和服务管理消息，让SMF的第一服务能够被业务应用订阅，使得终端在移动的过程中，通过SMF能够将终端正在使用的业务服务从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用， 从而实现在目标业务应用侧恢复业务服务的运行状态的，随后SMF便可依据标准的3GPP协议流程，进行业务路径的切换，在将业务服务接入到目标业务应用之后，由于目标业务应用中已经恢复了业务服务的上下文，因此能够保证终端使用业务服务的连续性。
进一步的，通过使用上述技术方案，让业务服务的路径的变更在SMF的控制下完成，使得SMF在业务服务的路径变更之前便向业务应用发送上下文存储通知，进而让原业务应用通过上下文请求子服务，将业务服务的上下文发送给目标数据中心的目标UPF对应的目标业务应用，从而避免了原业务应用与目标业务应用之间直接通信的需求，以及部署共享数据库的需求，改由让原业务应用和目标业务应用通过订阅第一服务，便能简单、方便的完成对终端业务服务的迁移。
进一步的，由于在5G网络中，UPF可以灵活部署，如可以部署于核心数据中心、汇聚数据中心、边缘数据中心或者无线接入云，而目前3GPP网络架构不支持与UPF部署于同一基础设施的业务应用订阅核心网各网络功能发布的服务，故通过采用本申请提出的实施例，在SMF和UPF之间增加服务管理相关的接口(即服务管理消息)，在UPF增加服务管理功能，从而让5G核心网与其它网元可以将UPF作为代理，进而通过UPF发布网络服务(即第一服务)，从而让部署于边缘数据中心的业务应用能够订阅核心网各网络功能发布的服务。
本领域内的技术人员应明白，本申请实施例可提供为方法、系统、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或 多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (14)

  1. 一种数据迁移的方法，其特征在于，包括：
    会话管理功能SMF接收终端的当前位置信息；其中，所述SMF位于核心数据管理中心，在所述SMF中增设了第一服务和服务消息；所述第一服务用于对业务应用进行上下文进行管理；所述服务消息用于配置业务应用使用所述第一服务的通信链路；
    所述SMF基于所述当前位置信息与所述终端的原位置信息，判断是否需要为所述终端切换正在使用的业务服务的路径，获得判断结果；
    当所述判断结果为是时，所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，所述原业务应用与所述原位置信息对应，所述目标业务应用与所述当前位置信息对应；所述原业务应用与所述目标业务应用都能够为所述终端提供所述业务服务，且都已订阅所述第一服务。
  2. 如权利要求1所述的方法，其特征在于，所述判断是否需要为所述终端切换正在使用的业务服务的路径，包括：
    判断所述当前位置信息与所述原位置信息是否相同，在不相同时，所述SMF确定需要为所述终端切换正在使用的业务服务的路径。
  3. 如权利要求1所述的方法，其特征在于，所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用，包括：
    所述SMF通过第一子服务消息向所述原业务应用发送上下文存储通知，并接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文；其中，所述第一子服务消息为所述服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息；
    所述SMF通过上下文恢复子服务将所述业务服务的上下文恢复至所述目标业务应用，以使所述业务服务的路径信息从所述原业务应用迁移到所述目标业务应用；其中，所述上下文恢复子服务为所述第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；所述上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，所述第三子服务消息为所述服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
  4. 如权利要求3所述的方法，其特征在于，所述SMF通过第一子服务消息向所述原业务应用发送上下文存储通知，包括：
    所述SMF通过上下文存储子服务，生成所述上下文存储通知；其中，所述上下文存储子服务为所述第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF；
    所述SMF通过所述第一子服务消息，将所述上下文存储通知发送给原UPF，以使所 述原UPF将使所述上下文存储通知发送给所述原业务应用。
  5. 如权利要求3所述的方法，其特征在于，所述接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文，包括：
    所述SMF通过上下文请求子服务从所述原业务应用的原UPF获得所述业务服务的上下文；其中，所述上下文请求子服务为所述第一服务中的子服务，用于向所述业务应用提供返回上下文的服务，所述上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，所述第二子服务消息为所述服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
  6. 如权利要求1-5任一权项所述的方法，其特征在于，在所述SMF将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用之前，还包括：
    所述SMF在所述原UPF和所述目标UPF中注册所述第一服务；
    所述SMF已通过所述原UPF接受所述原业务应用对所述第一服务的订阅，及所述SMF已通过所述目标UPF接受所述目标应用对所述第一服务的订阅。
  7. 一种数据迁移的装置，其特征在于，所述装置应用于会话管理功能SMF，包括：
    接收单元，用于接收终端的当前位置信息；其中，所述SMF位于核心数据管理中心，在所述SMF中增设了第一服务和服务消息；所述第一服务用于对业务应用进行上下文进行管理；所述服务消息用于配置业务应用使用所述第一服务的通信链路；
    判断单元，用于基于所述当前位置信息与所述终端的原位置信息，判断是否需要为所述终端切换正在使用的业务服务的路径，获得判断结果；
    迁移单元，用于当所述判断结果为是时，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用；其中，所述原业务应用与所述原位置信息对应，所述目标业务应用与所述当前位置信息对应；所述原业务应用与所述目标业务应用都能够为所述终端提供所述业务服务，且都已订阅所述第一服务。
  8. 如权利要求7所述的装置，其特征在于，所述判断是否需要为所述终端切换正在使用的业务服务的路径时，所述判断单元具体用于：
    判断所述当前位置信息与所述原位置信息是否相同，在不相同时，确定需要为所述终端切换正在使用的业务服务的路径。
  9. 如权利要求7所述的装置，其特征在于，将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用时，所述迁移单元具体用于：
    通过第一子服务消息向所述原业务应用发送上下文存储通知，并接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文；其中，所述第一子服务消息为所述服务消息中，用于通知业务应用存储指定的业务服务的上下文的消息；
    通过上下文恢复子服务将所述业务服务的上下文恢复至所述目标业务应用，以使所述业务服务的路径信息从所述原业务应用迁移到所述目标业务应用；其中，所述上下文恢复子服务为所述第一服务中的子服务，用于将指定的业务服务的上下文恢复到业务应用；所述上下文子服务是通过第三子服务消息将上下文恢复到业务应用的，所述第三子服务消息为所述服务消息中，用于通知业务应用恢复指定的业务服务的上下文的消息。
  10. 如权利要求9所述的装置，其特征在于，通过第一子服务消息向所述原业务应用发送上下文存储通知时，所述迁移单元具体用于：
    通过上下文存储子服务，生成所述上下文存储通知；其中，所述上下文存储子服务为所述第一服务中的子服务，用于让业务应用存储指定的业务服务的上下文，并返回给所述SMF；
    通过所述第一子服务消息，将所述上下文存储通知发送给所述原UPF，以使所述原UPF将使所述上下文存储通知发送给所述原业务应用。
  11. 如权利要求9所述的装置，其特征在于，接收所述原业务应用，基于所述上下文存储通知返回的所述业务服务的上下文时，所述迁移单元具体用于：
    通过上下文请求子服务从所述原业务应用的原UPF获得所述业务服务的上下文；其中，所述上下文请求子服务为所述第一服务中的子服务，用于向所述业务应用提供返回上下文的服务，所述上下文请求子服务是通过第二子服务消息将上下文返回到SMF的，所述第二子服务消息为所述服务消息中，用于通知SMF接收指定的业务服务的上下文的消息。
  12. 如权利要求7-11任一权项所述的装置，其特征在于，在将所述业务服务的路径信息，从原边缘数据中心的原业务应用迁移到目标边缘数据中心的目标业务应用之前，所述迁移单元还用于：
    在所述原UPF和所述目标UPF中注册所述第一服务；
    已通过所述原UPF接受所述原业务应用对所述第一服务的订阅，及所述SMF已通过所述目标UPF接受所述目标应用对所述第一服务的订阅。
  13. 一种会话管理功能SMF，其特征在于，包括：至少一个存储器和至少一个处理器，其中，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1～6任一项所述方法的步骤。
  14. 一种计算机可读非易失性存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1～6任一项所述方法的步骤。
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Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
US11470017B2 (en) * 2019-07-30 2022-10-11 At&T Intellectual Property I, L.P. Immersive reality component management via a reduced competition core network component
WO2021042400A1 (zh) * 2019-09-06 2021-03-11 华为技术有限公司 路径切换方法、通信装置和通信系统
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017167247A1 (en) * 2016-03-31 2017-10-05 Huawei Technologies Co., Ltd. Systems and methods for service and session continuity in software defined topology management
CN107404736A (zh) * 2016-05-18 2017-11-28 电信科学技术研究院 一种切换方法、设备及网络架构
CN107623910A (zh) * 2016-07-13 2018-01-23 电信科学技术研究院 一种标识终端的方法和设备
CN108738086A (zh) * 2017-04-21 2018-11-02 华为技术有限公司 一种用户面重选的方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040165600A1 (en) * 2003-02-21 2004-08-26 Alcatel Customer site bridged emulated LAN services via provider provisioned connections
CN101232632A (zh) * 2007-01-22 2008-07-30 华为技术有限公司 实现流媒体业务的系统、方法及流媒体业务控制功能实体
CN101867987A (zh) * 2010-05-28 2010-10-20 上海顶竹通讯技术有限公司 一种能使终端在3gpp和wlan切换的网络以及切换方法
CN104170416B (zh) * 2012-06-29 2018-01-16 华为技术有限公司 在线签约数据配置方法、装置及系统
WO2017125143A1 (en) * 2016-01-20 2017-07-27 Nokia Solutions And Networks Oy Methods, apparatuses and computer program product for improved service continuity with mobile edge computing
CN108781389B (zh) * 2016-01-27 2021-01-01 诺基亚通信公司 用于实现移动边缘应用会话连接性和移动性的方法和装置
CN107295499A (zh) * 2016-04-01 2017-10-24 中兴通讯股份有限公司 移动通讯系统及寻呼方法
EP4142366A1 (en) * 2016-07-01 2023-03-01 IDAC Holdings, Inc. Methods for supporting session continuity on per-session basis
CN107027153B (zh) * 2017-03-16 2020-12-08 上海华为技术有限公司 业务的切换方法、上下文迁移方法及相关设备
CN107018542A (zh) * 2017-03-27 2017-08-04 中兴通讯股份有限公司 网络系统中状态信息的处理方法、装置及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017167247A1 (en) * 2016-03-31 2017-10-05 Huawei Technologies Co., Ltd. Systems and methods for service and session continuity in software defined topology management
CN107404736A (zh) * 2016-05-18 2017-11-28 电信科学技术研究院 一种切换方法、设备及网络架构
CN107623910A (zh) * 2016-07-13 2018-01-23 电信科学技术研究院 一种标识终端的方法和设备
CN108738086A (zh) * 2017-04-21 2018-11-02 华为技术有限公司 一种用户面重选的方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3751903A4

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