WO2020011173A1 - Procédé et appareil de gestion de relocalisation - Google Patents

Procédé et appareil de gestion de relocalisation Download PDF

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Publication number
WO2020011173A1
WO2020011173A1 PCT/CN2019/095315 CN2019095315W WO2020011173A1 WO 2020011173 A1 WO2020011173 A1 WO 2020011173A1 CN 2019095315 W CN2019095315 W CN 2019095315W WO 2020011173 A1 WO2020011173 A1 WO 2020011173A1
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WIPO (PCT)
Prior art keywords
application
relocation
information
timer
terminal
Prior art date
Application number
PCT/CN2019/095315
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English (en)
Chinese (zh)
Inventor
陆伟
周铮
刘睿智
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华为技术有限公司
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Publication of WO2020011173A1 publication Critical patent/WO2020011173A1/fr

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    • 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
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/30—Routing of multiclass traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and device for relocation management.
  • a network device reselects a user plane function (UPF) network element for the terminal according to information such as the location of the terminal and triggers the terminal to establish a route with the reselected UPF network element.
  • the terminal migrates the application data flow from the route between the terminal and the UPF network element before reselection to the route between the terminal and the UPF network element after reselection, in order to obtain a better data transmission service.
  • UPF user plane function
  • third-party application server due to the deployment of a third-party application server, or because the third-party application server does not support context transfer, when the third-party application server requests the terminal to perform third-party application services during terminal movement, The location of the connected third-party application server remains unchanged. Third-party applications with this feature can be considered as not supporting application relocation. In a scenario where third-party applications do not support application relocation, compared to the UPF network element before reselection, the UPF network element after reselection may be far away from the third-party application server.
  • the terminal should The application data packet is transmitted to the third-party application server by the UPF network element before the reselection, instead of transmitting the application data stream by the UPF network element after the reselection.
  • this conflicts with the routing selection after the current terminal reselection.
  • the related art does not provide a corresponding solution.
  • This application provides a relocation management method and device, and specifically provides a terminal processing application support / non-support solution for application relocation.
  • a relocation management method including: a terminal receiving relocation attribute information, the relocation attribute information is used to indicate relocation attributes of one or more applications, and the relocation attributes include supporting application relocation (application relocation) or not supporting applications When relocating, one or more applications include the first application; if the relocation attribute of the first application is that application relocation is not supported, the terminal transmits the data stream of the first application through the first route; if the relocation attribute of the first application is support When the application is relocated, the terminal transmits the data stream of the first application through a second route.
  • a terminal processing application support / non-support application relocation solution is provided, thereby solving the problem that the terminal actually uses the application data transfer route (that is, the second route) and the third-party application server in a scenario where the application does not support application relocation. It is expected that the routing (ie, the first routing) of the data flow for transmitting the application is in conflict.
  • the method includes: before the terminal receives the relocation attribute information, the terminal transmits a data stream of the first application through a first route. That is, for the first application, the first route is a route for transmitting the data stream of the first application before the terminal receives the relocation attribute information.
  • the relocation attribute information is used to indicate the relocation attribute of one or more applications, including at least one of the following situations: (1) the relocation attribute information includes information of applications that do not support the relocation of the application; (2) the relocation attribute information includes support Information of the application for application relocation; (3) Relocation attribute information includes first indication information and application information, and the first indication information is used to indicate that the information of the application included in the relocation attribute information is information of an application supporting the relocation of the application, or The first indication information is used to indicate that the application supports application relocation; (4) the relocation attribute information includes second indication information and application information, and the second indication information is used to indicate the information of the application included in the relocation attribute information is: Information of an application that does not support application relocation, or that the second indication information is used to indicate that the application does not support application relocation; (5) Relocation attribute information includes one or more application timer configuration information, and application timer configuration Information is used to indicate the configuration of the application timer; where the application corresponding to the application timer is relocated before the application timer expires The attribute is to support application relocation; or
  • the information of the application includes at least one of the following situations: the identification of the application; the identification of the data stream of the application; the triplet information including the address, port, and transport layer protocol; the five-tuple information, the five-tuple
  • the group information includes the destination address, source address, destination port, source port, and transport layer protocol.
  • the method further includes: the terminal receives routing timer information, and the terminal configures the routing timer according to the reason timer information. Further, the terminal releases the route corresponding to the routing timer according to the routing timer information.
  • the routing timer information is used to instruct the terminal to configure a routing timer for the corresponding route, and / or the routing timer is used to indicate the time when the route corresponding to the routing timer is released. In this way, the terminal can configure the routing timer according to the routing timer information, so as to release the corresponding route after the routing timer expires, thereby saving network resources.
  • a relocation management method which includes: network equipment determines relocation attribute information, the relocation attribute information is used to indicate relocation attributes of one or more applications, and the relocation attributes include supporting application relocation or non-supporting application relocation;
  • the terminal sends relocation attribute information.
  • a network device can enable a terminal to know the relocation attributes of one or more applications by sending relocation attribute information to the terminal. In this way, the terminal can select an appropriate route to transmit the data stream of the application according to the relocation attribute of the application, thereby solving the route that the terminal actually uses to transmit the data stream of the application (that is, the second Routing) conflicts with the routing (ie, the first routing) that the third-party application server wishes to use to transmit the data stream of the application.
  • the relocation attribute information is used to indicate the relocation attribute of one or more applications, including at least one of the following situations: (1) the relocation attribute information includes information of applications that do not support the relocation of the application; (2) the relocation attribute information includes support Information of the application of the application relocation; (3) the relocation attribute information includes first indication information and application information, and the first indication information is used to indicate that the information of the application included in the relocation attribute information is information of an application supporting the relocation of the application, or, The first indication information is used to indicate that the application supports application relocation; (4) The relocation attribute information includes second indication information and application information, and the second indication information is used to indicate that the information included in the relocation attribute information does not support application relocation.
  • the relocation attribute information includes one or more application timer configuration information, and the application timer configuration information is used to indicate the application timer Configuration; where before the application timer expires, the relocation attribute of the application corresponding to the application timer is to support application relocation ; Or the timer expires before the application, the application timer corresponding property of the application for the relocation application does not support the relocation.
  • the information of the application includes at least one of the following situations: the identification of the application; the identification of the data stream of the application; the triplet information including the address, port, and transport layer protocol; the five-tuple information, the five-tuple
  • the group information includes the destination address, source address, destination port, source port, and transport layer protocol.
  • the method further includes: the network device sends routing timer information to the terminal device, the routing timer information is used to indicate configuration information of a route corresponding to the routing timer, and / or the routing timer is used to indicate release The time of the route corresponding to the route timer.
  • the network device instructs the terminal to configure a routing timer through the routing timer information, so that the terminal releases the specified route at a specified time, thereby saving network resources.
  • the method further includes: the network device determines routing timer information according to the application timer configuration information.
  • the application timer configuration information includes the application timer timing duration and the routing timer information includes the routing timer timing duration.
  • the network device may determine the maximum value of the application timer timing duration from multiple application timer configuration information, and Set the maximum value of the timing duration of the application timer to the timing duration of the routing timer.
  • the network device is a policy function control network element, and the network device sends relocation attribute information to the terminal, including: the policy function control network element sends a user equipment routing policy (UESP) to the terminal.
  • UESP user equipment routing policy
  • Information, URSP information includes relocation attribute information. This design provides a specific implementation for network equipment to send relocation attribute information to the terminal.
  • a terminal is provided, and the terminal has a function of implementing the method according to any one of the foregoing first aspects.
  • This function can be realized by hardware, and can also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a terminal including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer to execute instructions, the processor is connected to the memory through the bus, and when the terminal runs When the processor executes the computer execution instructions stored in the memory, so that the terminal executes the relocation management method according to any one of the first aspects above.
  • a terminal including: a processor; the processor is configured to be coupled to a memory and read an instruction in the memory, and then execute the relocation according to any one of the first aspects according to the instruction. Management methods.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the relocation management method according to any one of the first aspects. .
  • a computer program product containing instructions which when executed on a computer, enables the computer to execute the relocation management method according to any one of the above-mentioned first aspects.
  • a chip system includes a processor for supporting a terminal to implement the functions involved in the first aspect.
  • the chip system further includes a memory, and the memory is configured to store program instructions and data necessary for the terminal.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the technical effects brought by any one of the design methods in the third aspect to the eighth aspect may refer to the technical effects brought by the different design methods in the first aspect, and are not repeated here.
  • a network device has a function of realizing the relocation management method according to any one of the foregoing second aspects.
  • This function can be realized by hardware, and can also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • a network device including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer to execute instructions, the processor is connected to the memory through the bus, and when the network When the device is running, the processor executes the computer execution instructions stored in the memory, so that the network device executes the relocation management method according to any one of the second aspects above.
  • a network device including: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the instruction according to any one of the foregoing second aspects according to the instruction. Relocation management method.
  • a computer-readable storage medium stores instructions that, when run on a computer, enable the computer to perform the relocation management according to any one of the second aspects. method.
  • a computer program product containing instructions which, when run on a computer, enables the computer to execute the relocation management method according to any one of the above second aspects.
  • a chip system includes a processor for supporting a network device to implement the functions involved in the second aspect.
  • the chip system further includes a memory, and the memory is configured to store program instructions and data necessary for the network device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • FIG. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a scenario in which a terminal establishes a route according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of another scenario in which a terminal establishes a route according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a relocation management method according to an embodiment of the present application.
  • FIG. 7 is a flowchart of another relocation management method according to an embodiment of the present application.
  • FIG. 8 is a flowchart of another relocation management method according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • first and second in the present application are only used to distinguish different objects, and do not limit their order.
  • first route and the second route are only for distinguishing different routes, and do not limit their sequence.
  • the network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the technical solutions provided in the embodiments of the present application can be applied to a wireless communication system.
  • the wireless communication system can be a 5G system or other communication systems in the future. Of course, it can also be a long term evolution (LTE) system and LTE evolution. (LTE-Advanced, LTE-A) system and the like.
  • LTE long term evolution
  • LTE-A LTE-Advanced, LTE-A
  • the communication system may include: a terminal 10, a radio access network (RAN) or an access network (AN) 20 (hereinafter referred to as (R) AN20), and a core network 30. And data network (DN) 40.
  • the core network element (or network function network element) in the core network 30 may include: access and mobility management function (AMF) network element, session management function (session management function, (SMF) network element, policy control function (PCF) network element, UPF network element, etc.
  • AMF access and mobility management function
  • SMF session management function
  • PCF policy control function
  • the AMF network element communicates with the SMF network element through the Next Generation Network (N) 11 interface
  • the AMF network element communicates with the PCF network element through the N15 interface
  • the SMF network element communicates with the PCT network element through the N7 interface
  • the SMF network element It communicates with the UPF network element through the N4 interface
  • the UPF network element communicates with the DN through the N6 interface.
  • the interface names between the various network elements in FIG. 1 are only examples, and the interface names may be other names in the specific implementation, which is not limited in the embodiment of the present application.
  • the terminal 10 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem; it may also include a subscriber unit, a cellular phone, Smart phone, wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (laptop computer), cordless phone (cordless phone) or wireless local loop (WLL) station, machine type communication (MTC) terminal, user equipment (UE), mobile station (MS), terminal device (terminal device) or relay user equipment.
  • the relay user equipment may be, for example, a 5G residential gateway (RG).
  • RG 5G residential gateway
  • the (R) AN 20 can be used to provide a wireless connection and is located between the terminal 10 and the core network 30.
  • the network elements in (R) AN20 may include, but are not limited to, base stations, evolved base stations (eNBs), next generation base stations (gNB), new radio base stations (new radio base stations) , Macro base station, micro base station, high frequency base station or transmission and reception point (TRP)), non-3GPP access network (such as Wi-Fi), and / or non-3GPP interworking function (non-3GPP interworking function, N3IWF).
  • eNBs evolved base stations
  • gNB next generation base stations
  • new radio base stations new radio base stations
  • Macro base station such as Wi-Fi
  • TRP transmission and reception point
  • non-3GPP access network such as Wi-Fi
  • N3IWF non-3GPP interworking function
  • AMF network elements can be used for connection management, mobility management, registration management, access authentication and authorization, reachability management, security context management, and selection of SMF network elements.
  • SMF network elements can be used for session management, such as the establishment, modification, and release of sessions, selection and control of UPF network elements, service and session continuity mode selection, and roaming services.
  • PCF network elements can be used to provide policy control services and obtain contracting information related to policy decisions.
  • the UPF network element can be used to process user-plane related events, such as transmitting or routing data packets, detecting data packets, reporting traffic, processing quality of service (QoS), legal monitoring, and storing downlink data packets.
  • user-plane related events such as transmitting or routing data packets, detecting data packets, reporting traffic, processing quality of service (QoS), legal monitoring, and storing downlink data packets.
  • QoS quality of service
  • DN40 can be, for example, operator services, Internet access, or third-party services.
  • the above 5G network may also include other network elements, such as authentication service function (AUSF) network elements, application function (AF) network elements, and capability open function networks.
  • AUSF authentication service function
  • AF application function
  • NEF capability open function network
  • each network element in FIG. 1, such as the terminal 10, (R) AN20, AMF network element, SMF network element, PCF network element, and UPF network element, is only a name, and the name does not constitute the device itself limited. In the 5G network and other networks in the future, these network elements may also have other names, which are not specifically limited in the embodiments of the present application.
  • an AMF network element may also be called an AMF or an AMF entity, etc., which will be described collectively here, and will not be described in detail below.
  • the network device will reselect the UPF network element for the terminal according to the information such as the location of the terminal, and trigger the terminal to establish a route with the reselected UPF network element.
  • the terminal can establish connections with different UPF network elements through different PDU sessions, that is, one PDU session contains only one route.
  • the terminal first establishes a first PDU session with the UPF network element 1, and the terminal transmits an application data stream through a route (that is, a first route) of the first PDU session.
  • the terminal chooses to establish a second PDU session with UPF network element 2 (that is, the re-selected UPF network element). In this way, the terminal can migrate the data stream of the application originally transmitted on the first route to the route of the second PDU session (that is, the second route), and the application data stream is transmitted by the second route.
  • the terminal can establish connections with different UPF network elements through the same PDU session, that is, a PDU session contains multiple routes.
  • the terminal first establishes a first route with a PDU session anchor point (UPF network element 4 in FIG. 3), and the terminal transmits the application data stream through the first route.
  • the mobile communication network selects an anchor point with another PDU session through a distribution point (UPF network element 3 in FIG. 3).
  • UPF network element 5 in FIG. 3 A second route is established. In this way, the terminal can migrate the data stream of the application originally transmitted on the first route to the second route, and the data stream of the application is transmitted by the second route.
  • the route (that is, the second route) that the terminal actually uses to transmit the application data stream will occur with the route (that is, the first route) that the third-party application server wishes to transmit the application data stream. contradiction.
  • the prior art does not give a corresponding solution.
  • the communication system includes a terminal 10 and a network device 50.
  • the network device 50 may be a third-party application server, a PCF network element, or an SMF network element, which is not limited in the embodiment of the present application.
  • the network device 50 is configured to send relocation attribute information to a terminal, where the relocation attribute information includes relocation attributes of one or more applications, the one or more applications include a first application, and the relocation attributes include supporting application relocation or Application relocation is not supported.
  • the terminal 10 is configured to receive the relocation attribute information; and, according to the relocation attribute of the application, select an appropriate route to transmit the data stream of the application.
  • the terminal 10 before the terminal 10 receives the relocation attribute information, the terminal transmits a data stream of the first application through the first route. If the relocation attribute of the first application is not supporting application relocation, continue to transmit the data flow of the first application through the first route; if the relocation attribute of the first application is to support application relocation, the first route is Switch to the second route, and transmit the data stream of the first application through the second route.
  • the terminal can ensure that the data flow of the application continues to be transmitted on the original route (that is, the first route).
  • the terminal 10 or the network device 50 in FIG. 4 may be implemented by one device, or may be implemented by multiple devices, or may be a functional module in one device, which is not specifically limited in the embodiment of the present application. It can be understood that the foregoing functions may be network elements in a hardware device, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).
  • FIG. 5 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application.
  • the communication device 500 includes at least one processor 501, a communication line 502, a memory 503, and at least one communication interface 504.
  • the processor 501 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the program program of the present application integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 502 may include a path for transmitting information between the aforementioned components.
  • the communication interface 504 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and the like.
  • a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), and the like.
  • the memory 503 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions Dynamic storage device, can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory (EEPROM)), read-only compact disc (compact disc-read-only memory (CD-ROM) or other optical disc storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory may exist independently, and is connected to the processor through the communication line 502. The memory can also be integrated with the processor.
  • the memory 503 is configured to store a computer execution instruction for executing the solution of the present application, and the execution is controlled by the processor 501.
  • the processor 501 is configured to execute computer execution instructions stored in the memory 503, so as to implement the method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 5.
  • the communication device 500 may include multiple processors, such as the processor 501 and the processor 507 in FIG. 5. Each of these processors can be a single-CPU processor or a multi-CPU processor.
  • a processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).
  • the communication device 500 may further include an output device 505 and an input device 506.
  • the output device 505 communicates with the processor 501 and can display information in a variety of ways.
  • the output device 505 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait.
  • the input device 506 is in communication with the processor 501 and can receive user input in a variety of ways.
  • the input device 506 may be a mouse, a keyboard, a touch screen device, or a sensing device.
  • the above-mentioned communication device 500 may be a general-purpose device or a special-purpose device.
  • the communication device 500 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in FIG. device.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 500.
  • FIG. 6 it is a flowchart of a relocation management method according to an embodiment of the present application. The method includes the following steps:
  • the network device determines relocation attribute information.
  • the relocation attribute information is used to indicate relocation attributes of one or more applications.
  • the relocation attribute information is used to indicate that multiple applications have the same relocation attribute; or, for multiple applications, the relocation attribute information indicates the relocation attribute of the application for each application, respectively.
  • the relocation attribute includes supporting application relocation or not supporting application relocation.
  • Supporting application relocation refers to allowing the data flow of the application to be migrated from the original route (that is, the first route) to other routes (for example, the second route). Does not support application relocation means that application data flow is not allowed to be migrated from the original route to other routes.
  • the network device may determine the relocation attribute of the one or more applications in the following manner:
  • Manner 1 The network device stores a relocation attribute of one or more applications in advance.
  • the network device may store the relocation attribute of the application in the form of Table 1.
  • application information includes, but is not limited to, an application identifier, an application data stream identifier, triplet information or quintuple information.
  • the above triplet information includes a transport layer protocol, an address, and a port.
  • the address is a source address or a destination address.
  • the port is a destination port or a source port.
  • the triplet information may be a transport layer protocol, a source address, and a source port; or, the triplet information may be a transport layer protocol, a destination address, and a destination port.
  • the source address is the address of the device sending the data stream of the application.
  • the destination address is the address of the device receiving the application's data stream.
  • the source port is the port of the device sending the application's data stream.
  • the destination port is the port of the device that receives the data stream of the application.
  • the device for receiving / sending the data stream of the application is a terminal or a third-party application server.
  • the transport layer protocol is an Internet Protocol (IP).
  • IP Internet Protocol
  • the above-mentioned five-tuple information includes: a destination address, a source address, a destination port, a source port, and a transport layer protocol.
  • a destination address a source address
  • a destination port a destination port
  • a source port a transport layer protocol
  • the applied relocation attributes can also be described in other ways.
  • a binary number "1" can be used to indicate that the application's relocation attribute is to support application relocation
  • a binary number "0" can be used to indicate that the application's relocation attribute is not to support application relocation.
  • the network device may store the relocation attribute of the application in the form of Table 2.
  • the applied relocation attributes may be valid based on time and / or location. That is, if the terminal runs an application at a specific time and / or the terminal is in a specific location, the relocation attribute of the application stored in the network device is valid. In this way, for the terminal, the relocation attribute of the application is the relocation attribute stored by the network device.
  • the relocation attribute stored by the network device is that the relocation of the application is not supported.
  • the terminal runs the application at a specific time and / or when the terminal is in a specific location.
  • the relocation attribute of the application is that the application is not supported for relocation.
  • the relocation attribute of the application is to support application relocation.
  • the relocation attribute stored by the network device is to support the relocation of the application.
  • the terminal runs the application at a specific time and / or when the terminal is in a specific location.
  • the relocation attribute of the application is to support the relocation of the application.
  • the application's relocation attribute does not support application relocation.
  • the network device when storing the relocation attributes of the application, the network device also stores the valid location and / or valid time period corresponding to the application.
  • the valid location is used to indicate the location where the applied relocation attribute takes effect.
  • the valid period is used to indicate a period during which the applied relocation attribute is effective.
  • the network device may store the relocation attributes of the application in the form of Table 3, Table 4, or Table 5.
  • the relocation attribute of the application D is to support application relocation. If the terminal runs application D in Shanghai, for the terminal, the relocation attribute of the application D does not support application relocation.
  • the relocation attribute of the application A is to support application relocation. If the terminal runs application A at 7:00, for the terminal, the relocation attribute of the application A is that application relocation is not supported.
  • the relocation attribute of the application A is to support application relocation. If the terminal is in Shanghai and runs application A at 8:01, for the terminal, the relocation attribute of the application A is that it does not support application relocation.
  • Tables 1 to 5 are examples of specific implementations of the relocation attribute of the network device storage application, and they do not constitute a limitation on the specific implementation of the relocation attribute of the network device storage application.
  • the network device stores all or part of the relocation attributes of the application in advance.
  • the network device can query the relocation attribute of the application from the data stored by itself based on the information of the application.
  • Manner 2 The network device obtains the relocation attribute of the application from other devices that can communicate with the network device.
  • the network device is a PCF network element.
  • the PCF network element obtains the relocation attribute of the application from an application server corresponding to the application.
  • the application server of the application actively sends notification information to the PCF network element, and the notification information carries the relocation attribute of the application.
  • the PCF sends a query request to an application server corresponding to the application, and the query request is used to query a relocation attribute of the application.
  • the application server responds to the PCF network element with response information including the relocation attribute of the application.
  • the network device is an SMF network element.
  • the SMF network element obtains the relocation attribute of the application from the PCF network element.
  • the PCF network element sends notification information to the SMF network element, and the notification information carries the relocation attribute of the application.
  • the SMF network element may actively query the PCF network element for the relocation attribute of the application.
  • the network device may store the relocation attribute of the application in the form shown in any one of Tables 1 to 5.
  • the relocation attribute of the application is not fixed, in other words, the relocation attribute of the application can be changed according to the actual situation. For example, the location of the third-party application server remains unchanged.
  • the UPF network element that transmits the data stream of the application when the third-party application server wants the current UE to perform the service of the application is closer to the third-party application server, The UPF network element is farther away from the third-party application server than the UPF network element before reselection.
  • the relocation attribute of the application corresponding to the third-party application server does not support application relocation; otherwise, if the reselected UPF network element Compared with the UPF network element before reselection, which is closer to the third-party application server, the relocation attribute of the application corresponding to the third-party application server at this time is to support application relocation.
  • the third-party application server sends update instructions to the network device to notify the network device to update the relocation attributes of the application.
  • the relocation attribute of the application stored by the network device is not supporting relocation of the application.
  • the network device changes the relocation attribute of the application to support relocation of the application.
  • the network device After the relocation attribute of the application is determined based on the foregoing manner, the network device generates relocation attribute information according to the relocation attribute of the one or more applications.
  • the relocation attribute information includes at least one of the following situations:
  • the relocation attribute information includes information of an application that does not support relocation of the application.
  • the terminal can determine that the relocation attribute of the application does not support relocation of the application. Further, if the information of an application is not in the relocation attribute information, the terminal can determine that the relocation attribute of the application is to support the relocation of the application, or, according to a preset or agreed rule, the terminal defaults the relocation attribute of the application to be the supported application. move.
  • the relocation attribute information generated by the network device includes information of application C.
  • the terminal can determine, based on the relocation attribute information, that the relocation attribute of the application C does not support application relocation.
  • the terminal can also determine that the relocation attribute of applications other than the application C is to support application relocation. That is, the terminal can determine that the relocation attributes of application A, application B, and application D all support application relocation.
  • the relocation attribute information includes information of an application supporting the relocation of the application.
  • the terminal can determine that the relocation attribute of the application is to support the relocation of the application. Further, if the information of an application is not in the relocation attribute information, the terminal can determine that the relocation attribute of the application does not support relocation of the application, or, according to a preset or agreed rule, the terminal defaults the relocation attribute of the application to not. Support application relocation.
  • the relocation attribute information generated by the network device includes information of application A, information of application B, and information of application D.
  • the terminal can determine, according to the relocation attribute information, that the relocation attributes of application A, application B, and application D all support application relocation.
  • the terminal can also determine that the relocation attribute of applications other than application A, application B, and application D is that application relocation is not supported. That is, the terminal can determine that the relocation attribute of the application C does not support relocation of the application.
  • the relocation attribute information includes first indication information and application information.
  • the first indication information is used to indicate that information of an application included in the relocation attribute information is information of an application that does not support relocation of the application. In other words, the first indication information is used to indicate that the application does not support application relocation.
  • the terminal can determine that the relocation attribute of the application does not support relocation of the application. Further, if the information of an application is not in the relocation attribute information, the terminal can determine that the relocation attribute of the application is to support the relocation of the application, or, according to a preset or agreed rule, the terminal defaults the relocation attribute of the application to be the supported application. move.
  • the relocation attribute information includes second instruction information and application information.
  • the second instruction information is used to indicate that information of an application included in the relocation attribute information is information of an application supporting the relocation of the application. In other words, the second instruction information is used to indicate that the application supports application relocation.
  • the terminal can determine that the relocation attribute of the application is to support the relocation of the application. Further, if the information of an application is not in the relocation attribute information, the terminal can determine that the relocation attribute of the application does not support relocation of the application, or, according to a preset or agreed rule, the terminal defaults the relocation attribute of the application to support Application relocation.
  • the relocation attribute information includes one or more application timer configuration information.
  • the application timer configuration information includes configuration information of an application timer, and the application timer corresponds to an application. Further, the application timer configuration information is used to instruct the terminal to configure an application timer for the corresponding application.
  • the relocation attribute of the application corresponding to the application timer is to support application relocation.
  • the relocation attribute of the application corresponding to the application timer is that the application relocation is not supported.
  • the application timer configuration information includes: application information and a timing duration of the application timer. It should be noted that the timing duration of the application timers corresponding to different applications may be the same or different. Optionally, the timing duration of the application timer may be determined according to the type of application. For example, the timing of the application timer corresponding to a video application is set to 5 minutes, and the timing of the application timer corresponding to a game application is set to 3 minutes.
  • the trigger condition of the application timer may be predefined or indicated by the application timer configuration information. That is, the application timer configuration information may further include a trigger condition of the application timer. It should be noted that the triggering condition of the application timer is a condition that the terminal starts the application timer to start timing. Exemplarily, the trigger condition of the application timer is: the terminal is receiving configuration information of the application timer.
  • the relocation attribute information includes application timer configuration information.
  • the application timer configuration information includes the following: information of application A, and the timing of the application timer is 5 minutes. Therefore, after receiving the relocation attribute information, the terminal sets an application timer for application A. When the application timer counts less than 5 minutes, the terminal can determine that the relocation attribute of application A is to support application relocation (or does not support application relocation). Relocation); after the application timer counts for more than 5 minutes, the terminal determines that the relocation attribute of application A is that it does not support application relocation (or supports application relocation).
  • the type of the application timer may be predefined or indicated by the application timer configuration information. It should be noted that the type of the application timer is used to indicate the relocation attribute of the application corresponding to the application timer before the application timer expires. For example, when the type of the application timer is 1, before the application timer expires, the relocation attribute of the application corresponding to the application timer is to support application relocation. When the type of the application timer is 2, before the application timer expires, the relocation attribute of the application corresponding to the application timer is that the application relocation is not supported.
  • the above situation 1 to situation 5 are only examples of the relocation attribute information, and do not constitute a limitation on a specific implementation manner of the relocation attribute information.
  • the network device sends relocation attribute information to the terminal, and the terminal receives the relocation attribute information.
  • the embodiment of the present application does not limit the conditions under which the network device executes step S102.
  • the network device may send the relocation attribute information to the terminal after receiving a query message of the terminal (for example, querying information about relocation attributes of one or more applications).
  • a query message of the terminal for example, querying information about relocation attributes of one or more applications.
  • the network device sends the relocation attribute information to the terminal.
  • PDU Protocol Data Unit
  • the SMF network element sends the relocation attribute information to the terminal through the AMF network element.
  • the PCF network element sends user equipment URSP information to the terminal, and the URSP information includes relocation attribute information.
  • the terminal After receiving the relocation attribute, the terminal determines the relocation attribute of the one or more applications according to the relocation attribute information. In this way, for the first application (the first application may be any one of the one or more applications), the terminal detects whether the relocation attribute of the first application does not support application relocation or supports application relocation. If the relocation attribute of the first application is not supporting application relocation, the terminal executes the following step S103; if the relocation attribute of the first application is supporting application relocation, the terminal executes the following step S104.
  • the terminal transmits a data stream of the first application through a first route. That is, for the first application, the first route is a route for transmitting the data stream of the first application before the terminal receives the relocation attribute information, and the second route is other than the first route. routing.
  • the first route is a route between the terminal and the UPF network element before reselection
  • the second route is a route between the terminal and the UPF network element after reselection.
  • the terminal transmits a data stream of the first application through a first route.
  • the terminal transmits a data stream of the first application through a second route.
  • the relocation management method provided in the embodiment of the present application further includes the following steps S105 and S106:
  • the network device sends routing timer information to the terminal, and the terminal receives routing timer information.
  • the routing timer information is used to instruct the terminal to configure a routing timer.
  • the routing timer is used to indicate a moment when a route corresponding to the routing timer is released.
  • the routing timer information is used to indicate configuration information of a route corresponding to the routing timer.
  • the configuration information of the route may be an identifier of the route, a name of the route, and the like.
  • the routing timer information includes a timing duration of the routing timer.
  • a trigger condition of the routing timer is predefined or indicated by the routing timer information. That is, the routing timer information may further include a trigger condition. It should be noted that the trigger condition of the routing timer is used to instruct the terminal to start a condition for the routing timer to start counting. Exemplarily, the trigger condition of the routing timer may be that the terminal receives routing timer information.
  • the network device may determine the routing timer information according to the application timer configuration information. For example, the network device determines the maximum value of the timing duration of the application timer according to the configuration information of at least one application timer; and sets the maximum value of the timing duration of the application timer as the timing duration of the routing timer. For example, if the timer duration of application timer 1 is 5 minutes, the timer duration of application timer 2 is 6 minutes, and the timer duration of application timer 3 is 8 minutes, the network device sets the timer duration of the routing timer to 8. minute.
  • the terminal configures a routing timer according to the routing timer information.
  • the terminal configures a routing timer for a specified route according to the routing timer information; and, after the routing timer expires, the terminal releases the specified route to save network resources.
  • the actions of the terminal or the network device in the above steps S101-S106 may be executed by the processor 501 in the communication device shown in FIG. 5 calling the application program code stored in the memory 503, which is not limited in the embodiment of the present application.
  • FIG. 6 The method shown in FIG. 6 is described below in combination with an actual application scenario and the network architecture shown in FIG. 1.
  • SMF network element 1 reselects an SMF network element and / or a UPF network element.
  • the SMF network element 2 reselects the SMF network element and / or the UPF network element based on information such as the location of the terminal.
  • the reselected SMF network element is represented by SMF network element 2
  • the reselected UPF network element is represented by UPF network element 2.
  • the terminal Before the SMF network element 1 reselects the SMF network element and / or the UPF network element, the terminal has established a first PDU session with the UPF network element 1 through the SMF network element 1 and the terminal passes the first PDU session
  • the route (ie, the first route) transmits the application data stream.
  • the SMF network element 1 sends the relocation attribute information to the terminal through the AMF network element.
  • the relocation attribute information may be included in the Nmaf_communication_N1N2MessageTransfer message. It is worth noting that only an example of the message name is given here, and the message containing the relocation attribute information is not limited.
  • the SMF network element determines that an application exists in the first PDU session and does not support application relocation, the SMF network element does not deliver routing timer information to the terminal. That is, the SMF network element does not force the terminal to release the first route.
  • step S202 may be replaced with step S202b.
  • the PCF network element sends non-access stratum (NAS) signaling to the terminal with URSP information, where the URSP information includes relocation attribute information.
  • NAS non-access stratum
  • step S202 does not limit the execution time of step S202 (or step S202b).
  • steps S203-S204 may be performed first, and then step S202 (or step S202b) may be performed.
  • step S202 (or step S202b) and step S203 may be performed simultaneously.
  • the AMF network element sends the session establishment instruction information to the terminal using NAS signaling.
  • the session establishment instruction information is used to instruct the terminal to establish a second PDU session with the SMF network element 2 / UPF network element 2.
  • the terminal initiates a second PDU session establishment process.
  • the terminal transmits a data stream of an application that supports application relocation through a route (that is, a second route) of the second PDU session. Specifically, the terminal may switch a data stream of an application that supports application relocation to a second route for transmission.
  • the terminal transmits a data stream of an application that does not support application relocation through a route (that is, a first route) of the first PUD session. Specifically, the terminal may keep a data stream of an application that does not support application relocation to be transmitted on the first route.
  • the terminal After the data stream in the first PDU session ends, the terminal initiates a signaling process for releasing the first PDU session.
  • the terminal may initiate a release process of the first PDU session. . Specifically, the terminal sends a release request of the first PDU session to the AMF network element; the AMF network element sends the release request to the SMF network element 1; the SMF network element 1 releases the first PDU session according to the release request, and sends the first PDU session to the AMF network element. The element returns a response message to notify the first PDU session that the release is successful; the AMF network element sends the response message to the terminal.
  • the terminal may also directly initiate a signaling process for releasing the first PDU session.
  • the process of creating a new PDU session by the terminal shown in FIG. 7 only illustrates some steps related to the technical solution shown in FIG. 6, so as to describe an application scenario of the technical solution shown in FIG. 6.
  • the process of creating a PDU session may further include other steps. These steps have been described in detail in the prior art, which is not described in the embodiment of the present application.
  • this is a flowchart of a relocation management method provided by another embodiment of the present application.
  • the method includes the following steps:
  • the terminal establishes a PDU session, and a first PDU session anchor of the PDU session is UPF network element 4. That is, there is a first route between the terminal and the UPF network element 1, and the terminal transmits the application data stream through the first route.
  • the SMF network element selects a second PDU session anchor (that is, the UPF network element 5 in FIG. 8).
  • the SMF network element selects a second PDU session anchor based on information such as the location of the terminal.
  • the SMF network element selects a distribution point (that is, the UPF network element 3 in FIG. 8).
  • the shunting point is used to shunt data flows that belong to a same PDU session but belong to different routes.
  • the SMF network element notifies the UPF network element 4 of the information of the distribution point to update the first route.
  • the SMF network element establishes a second route between the terminal and the UPF network element 5.
  • step S306 Similar to step S202, for related descriptions of step S306, reference may be made to the embodiment shown in FIG. 7, and details are not described herein again.
  • step S306 may be performed first, and steps S301-S305 may be performed.
  • step S301 is performed first, then step S306 is performed, and then steps S302-S305 are performed.
  • step S301 and step S306 may be performed in parallel.
  • step S307-S309 are similar to steps S205-S207, except that in step S207, the terminal releases the first PDU session; in step S309, the terminal releases only the first route in the PDU session.
  • steps S307-S309 reference may be made to the embodiment shown in FIG. 7, and details are not described herein again.
  • the process for the terminal shown in FIG. 8 to create a route for a PDU session only illustrates some steps related to the technical solution shown in FIG. 6, so as to describe an application scenario of the technical solution shown in FIG.
  • the process of creating a route may include other steps. These steps have been described in detail in the prior art, which is not described in the embodiment of the present application.
  • the terminal and the network device include a hardware structure or a software module corresponding to each function.
  • the terminal and the network device include a hardware structure or a software module corresponding to each function.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
  • FIG. 9 shows a schematic structural diagram of a terminal.
  • the terminal includes a communication module 901.
  • the terminal further includes a processing module 902.
  • a communication module 901 is configured to receive relocation attribute information, where the relocation attribute information is used to indicate relocation attributes of one or more applications, the relocation attributes include supporting application relocation or not supporting application relocation, and the one or more applications include First application.
  • the communication module 901 is further configured to transmit the data flow of the first application through the first route when the relocation attribute of the first application is that the relocation of the application is not supported; At this time, the data flow of the first application is transmitted through the second route.
  • the processing module 902 is configured to determine a relocation attribute of the first application, and the relocation attribute of the first application is that the relocation of the application is not supported, or the relocation of the application is supported.
  • the communication module 901 is configured to transmit the data stream of the first application through the first route before receiving the relocation attribute information.
  • the relocation attribute information is used to indicate the relocation attribute of one or more applications, including at least one of the following situations: (1) the relocation attribute information includes information of applications that do not support application relocation; (2) the The relocation attribute information includes information of applications supporting application relocation; (3) the relocation attribute information includes first indication information and application information, and the first indication information is used to indicate information of applications included in the relocation attribute information Information for applications that support application relocation; (4) The relocation attribute information includes second indication information and application information, and the second indication information is used to indicate that the information included in the relocation attribute information is an unsupported application Information of the relocated application; (5) The relocation attribute information includes one or more application timer configuration information, and the application timer configuration information is used to indicate the configuration of the application timer; wherein the application timer expires Previously, the relocation attribute of the application corresponding to the application timer is to support application relocation; or, before the application timer expires, the application timer Relocation attribute corresponding applications that do not support the relocation application.
  • the application information includes at least one of the following situations: the identity of the application; the data stream identity of the application; the triplet information, which includes: the address and port and the transport layer protocol; the five-tuple Information, the quintuple information includes a destination address, a source address, a destination port, a source port, and a transport layer protocol.
  • the communication module 901 is further configured to receive routing timer information.
  • the processing module 902 is configured to configure a routing timer according to the routing timer.
  • the terminal is presented in the form of dividing each functional module corresponding to each function, or the terminal is presented in the form of dividing each functional module in an integrated manner.
  • the "module” here may include application-specific integrated circuits (ASICs), circuits, processors and memories executing one or more software or firmware programs, integrated logic circuits, or other devices that can provide the above functions .
  • ASICs application-specific integrated circuits
  • the communication module 901 shown in FIG. 9 may be implemented through the communication interface 503 in FIG. 5, and the processing module 902 shown in FIG. 9 may be implemented through the processor 501 or the processor 507 in FIG. 5. Without any restrictions.
  • An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores instructions; when the computer-readable storage medium runs on the terminal shown in FIG. 5, the terminal executes the The relocation management method shown in FIG. 6 to FIG. 8 of the embodiment of the application.
  • an embodiment of the present application provides a chip system including a processor, which is configured to support a terminal to implement a relocation management method shown in FIG. 6 to FIG. 8.
  • the chip system further includes a memory. This memory is used to store the necessary program instructions and data of the receiver.
  • the memory may not be in the chip system.
  • the chip system may be composed of a chip, and may also include a chip and other discrete devices, which are not specifically limited in the embodiments of the present application.
  • FIG. 10 shows a schematic structural diagram of a network device.
  • the network device includes a processing module 1001 and a sending module 1002.
  • a processing module 1001 is configured to determine relocation attribute information, where the relocation attribute information is used to indicate relocation attributes of one or more applications, and the relocation attributes include supporting application relocation or not supporting application relocation.
  • a sending module 1002 is configured to send the relocation attribute information to a terminal.
  • the relocation attribute information is used to indicate the relocation attribute of one or more applications, including at least one of the following situations: (1) the relocation attribute information includes information of applications that do not support application relocation; (2) the The relocation attribute information includes information of applications supporting application relocation; (3) the relocation attribute information includes first indication information and application information, and the first indication information is used to indicate information of applications included in the relocation attribute information Information for applications that support application relocation; (4) The relocation attribute information includes second indication information and application information, and the second indication information is used to indicate that the information included in the relocation attribute information is an unsupported application Information of the relocated application; (5) The relocation attribute information includes one or more application timer configuration information, and the application timer configuration information is used to indicate the configuration of the application timer; wherein the application timer expires Previously, the relocation attribute of the application corresponding to the application timer is to support application relocation; or, before the application timer expires, the application timer Relocation attribute corresponding applications that do not support the relocation application.
  • the information of the application includes at least one of the following situations: the identification of the application; the identification of the data stream of the application; the triplet information, which includes: the address, the port, and the transport layer protocol; the five-tuple Information, the quintuple information includes a destination address, a source address, a destination port, a source port, and a transport layer protocol.
  • the sending module 1002 is further configured to send routing timer information to the terminal device, where the routing timer information is used to indicate configuration information of a route corresponding to the routing timer.
  • the processing module 1001 is further configured to determine routing timer information according to application timer configuration information.
  • the sending module 1002 is configured to send URSP information to the terminal when the network device is a policy function control network element, and the URSP information includes the relocation attribute information.
  • the network device is presented in the form of dividing each functional module corresponding to each function, or the network device is presented in the form of dividing each functional module in an integrated manner.
  • the "module” herein may include application-specific integrated circuits, circuits, processors and memories executing one or more software or firmware programs, integrated logic circuits, or other devices that can provide the above functions.
  • the processing module 1001 shown in FIG. 10 may be implemented by the processor 501 or the processor 507 shown in FIG. 5, and the sending module 1002 shown in FIG. 10 may be implemented through the communication interface 503 of FIG. 5. There are no restrictions on this.
  • An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores instructions; when the computer-readable storage medium runs on the network device shown in FIG. 5, the network device The relocation management method shown in FIG. 6 to FIG. 8 in the embodiment of the present application is executed.
  • an embodiment of the present application provides a chip system including a processor, which is configured to support a network device to implement the relocation management method shown in FIG. 6 to FIG. 8.
  • the chip system further includes a memory. This memory is used to store the necessary program instructions and data of the receiver.
  • the memory may not be in the chip system.
  • the chip system may be composed of a chip, and may also include a chip and other discrete devices, which are not specifically limited in the embodiments of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be from a website site, a computer, a server, or a data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as servers, data centers, and the like that can be integrated with the medium.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

La présente invention se rapporte au domaine technique des communications, et concerne un procédé et un appareil de gestion de relocalisation, fournissant une solution indiquant si une application de traitement de terminal prend en charge/ne prend pas en charge la relocalisation d'application. Le procédé comprend les étapes suivantes : le terminal reçoit des informations d'attribut de relocalisation envoyées par un dispositif de réseau, les informations d'attribut de relocalisation étant utilisées pour indiquer des attributs de relocalisation d'une ou plusieurs applications, l'attribut de relocalisation indiquant la prise en charge d'une relocalisation d'application ou la non-prise en charge d'une relocalisation d'application, et la ou les applications comprenant une première application ; si l'attribut de relocalisation de la première application indique la non-prise en charge de la relocalisation d'application, le terminal transmet un flux de données de la première application grâce à un premier routage ; si l'attribut de relocalisation de la première application indique la prise en charge de la relocalisation d'application, le terminal transmet le flux de données de la première application grâce à un deuxième routage. La présente invention s'applique au processus de transmission du flux de données d'applications.
PCT/CN2019/095315 2018-07-10 2019-07-09 Procédé et appareil de gestion de relocalisation WO2020011173A1 (fr)

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