WO2021223335A1 - Procédé de sélection de route pour programme d'application, et dispositif associé - Google Patents

Procédé de sélection de route pour programme d'application, et dispositif associé Download PDF

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Publication number
WO2021223335A1
WO2021223335A1 PCT/CN2020/106336 CN2020106336W WO2021223335A1 WO 2021223335 A1 WO2021223335 A1 WO 2021223335A1 CN 2020106336 W CN2020106336 W CN 2020106336W WO 2021223335 A1 WO2021223335 A1 WO 2021223335A1
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Prior art keywords
app
ursp
pdu session
terminal
application
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PCT/CN2020/106336
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English (en)
Chinese (zh)
Inventor
付志伟
苗苗
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北京紫光展锐通信技术有限公司
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Publication of WO2021223335A1 publication Critical patent/WO2021223335A1/fr

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    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/903—Querying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update

Definitions

  • This application relates to the field of communication technology, and in particular to a routing method and related devices for application programs.
  • UE Route Selection Policy (URSP) evaluation requires traffic descriptor (TD) parameters and URSP rules associated with the application Match the Traffic Descriptor parameter in the URSP rule, and then create a corresponding routing path for the application according to the route selection descriptor (Route Selection Descriptor, RSD) in the successfully matched URSP rule. How to choose a routing path for an application is currently not clearly stipulated in the agreement.
  • TD traffic descriptor
  • RSD Route Selection Descriptor
  • the embodiment of the present application provides a routing method and related device for an application program, so as to select a routing path for an application program according to a set of PDU sessions.
  • an embodiment of the present application provides a routing method for an application program, including:
  • the terminal obtains the identity identification ID of the first application program APP;
  • the terminal uses the first APP ID as the query identifier, queries the preset protocol data unit PDU session Session set, and obtains the first PDU Session of the first application APP.
  • the PDU Session set includes the APP ID and Correspondence between PDU Session;
  • the terminal routes the data flow of the first APP to the first PDU Session for transmission.
  • an application routing device including:
  • the query unit is configured to use the first APP ID as the query identifier, query the preset protocol data unit PDU session Session set, and obtain the first PDU Session of the first application APP.
  • the PDU Session set includes the APP's Correspondence between ID and PDU Session;
  • the routing unit is configured to route the data flow of the first APP to the first PDU Session for transmission.
  • an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured by The processor executes, and the program includes instructions for executing the steps in any method of the first aspect of the embodiments of the present application.
  • an embodiment of the present application provides a chip, including: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes any method as in the first aspect of the embodiment of the present application Some or all of the steps described in.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the For example, part or all of the steps described in any method of the first aspect.
  • an embodiment of the present application provides a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps described in any method in the first aspect of the embodiment of the present application.
  • the computer program may be a software installation package.
  • the terminal first obtains the first application APP ID, and secondly, uses the first APP ID as the query identifier to query the preset protocol data unit PDU session Session set to obtain the The first PDU Session of the first application APP, the PDU Session set includes the correspondence between the ID of the APP and the PDU Session, and finally the data stream of the first APP is routed to the first PDU Session for transmission.
  • the terminal can accurately select the routing path for the APP according to the APP ID, so that all the application IP data packets corresponding to the APP ID are routed to the corresponding PDU Session.
  • FIG. 1A is a system architecture diagram of an exemplary communication system provided by an embodiment of the present application.
  • Fig. 4 is a block diagram of functional units of another application routing device provided by an embodiment of the present application.
  • Protocol Data Unit Protocol data unit refers to the data unit transferred between peer-to-peer layers.
  • the PDU of the physical layer is a data bit (bit)
  • the PDU of the data link layer is a data frame (frame)
  • the PDU of the network layer is a packet (packet)
  • the PDU of the transport layer is a data segment (segment), and other higher levels
  • the PDU is data.
  • PDU Session Session is the granularity unit of the slice network in the fifth-generation 5G mobile communication system.
  • Network slicing is an on-demand networking method that allows operators to separate multiple virtual end-to-end networks on a unified infrastructure. Each network slicing is carried out from the wireless access network bearer network to the core network. Logic isolation to adapt to various types of applications. In a network slice, it can be divided into at least three parts: wireless network sub-slice, bearer network sub-slice, and core network sub-slice.
  • the technical solutions of the embodiments of the present application can be applied to an exemplary communication system 100 as shown in FIG. 1A.
  • the exemplary communication system 100 includes a terminal 110 and a network device 120, and the terminal 110 is in communication connection with the network device 120.
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • New Radio New Radio
  • NR New Radio
  • LTE-U LTE-based access to unlicensed spectrum
  • NR-U Universal Mobile Telecommunication System
  • UMTS Universal Mobile Telecommunication System
  • the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the embodiment of the application does not limit the applied frequency spectrum.
  • the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.
  • the terminal 110 in the terminal of the embodiment of the present application may include one or more of the following components: a processor 110, a memory 120, and an input/output device 130.
  • the processor 110 is in communication connection with the memory 120 and the input/output device 130, respectively. .
  • the network device 120 in the embodiment of the present application may be a device used to communicate with a terminal.
  • the network device may be an evolved NodeB (eNB or eNodeB) in an LTE system, or a cloud radio access network (cloud wireless access network).
  • the radio access network (CRAN) scenario of the wireless controller, or the network device can be a relay device, an access point, an in-vehicle device, a wearable device, and a network device in the future 5G network or a network in the future evolved PLMN network Equipment, one or a group of antenna panels (including multiple antenna panels) of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU), or distributed A unit (distributed unit, DU), etc., is not limited in the embodiment of the present application.
  • BBU baseband unit
  • DU distributed A unit
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU.
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal 110 or the network device 120 includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal, or a functional module in the terminal that can call and execute the program.
  • the UE Route Selection Policy (URSP) evaluation requires the application-related path descriptor (Traffic Descriptor, TD) parameters and The Traffic Descriptor parameter in the URSP rule is matched, and then a corresponding routing path is created for the application according to the route selection descriptor (Route Selection Descriptor, RSD) in the successfully matched URSP rule. How to choose a routing path for an application is currently not clearly stipulated in the agreement.
  • an embodiment of the present application proposes a routing method for an application program, which will be described in detail below with reference to the accompanying drawings.
  • FIG. 2A is a schematic flowchart of an application routing method provided by an embodiment of the present application. As shown in the figure, the method includes:
  • Step 201 The terminal obtains the identity identification ID of the first application program APP.
  • the first APP may be a system application or a third-party application pre-installed on the terminal, such as a video application APP, a game APP, a chat APP, etc., which are not exclusively limited here.
  • the APP ID specifically refers to the identification information of the APP, such as the name of the APP.
  • Step 202 The terminal uses the first APP ID as a query identifier, queries a preset protocol data unit PDU session Session set, and obtains the first PDU Session of the first application APP, and the PDU Session set includes APP The corresponding relationship between the ID of the PDU and the PDU Session.
  • the PDU Session set can be the PDU Session configuration file, and the PDU Session n of the APP n is expressed in the following format:
  • the PDU Session set can be the IP routing table shown in Table 1, where APP1, 3, 4, and 5 are pre-installed applications, APP1 ID corresponds to PDU Session 1, APP3 ID corresponds to PDU Session 3, and APP4 ID corresponds to the first One PDU Session4, APP5 ID corresponds to the first PDU Session5.
  • Step 203 The terminal routes the data stream of the first APP to the first PDU Session for transmission.
  • the operating system of the terminal can execute the above steps 201 to 203, and step 203 can assist data processing and transmission through the baseband chip and the radio frequency system.
  • the terminal first obtains the first application APP ID, and secondly, uses the first APP ID as the query identifier to query the preset protocol data unit PDU session Session set, and obtain the first application APP ID.
  • the first PDU Session of an application APP, the PDU Session set includes the correspondence between the ID of the APP and the PDU Session, and finally the data stream of the first APP is routed to the first PDU Session for transmission.
  • the terminal can accurately select the routing path for the APP according to the APP ID, so that all the application IP data packets corresponding to the APP ID are routed to the corresponding PDU Session.
  • the method further includes: the terminal obtains multiple APPs installed on the local end; the terminal establishes a PDU Session for at least one of the multiple APPs for which the user equipment routing policy URSP matches successfully.
  • the successful match of the URSP means that the path descriptor TD parameter of the URSP corresponding to the APP only includes the APP ID, and the route selection description RSD of the URSP indicates that a PDU Session needs to be established; the terminal according to the at least one successfully matched APP
  • the PDU Session creates the PDU Session set.
  • the multiple APPs may be all APPs installed on the local device scanned by the terminal.
  • the terminal can perform URSP matching for multiple APPs installed on the local device, create a PDU Session for the APP that successfully matches the URSP, and create a PDU Session set for all APPs that successfully match the URSP.
  • the application program selects the routing path.
  • the establishment of the PDU Session by the terminal for at least one of the multiple APPs for which the user equipment routing policy URSP is successfully matched includes:
  • the terminal performs the following steps for each APP of the plurality of APPs to obtain the PDU Session of at least one APP;
  • the terminal uses the currently processed APP ID as the query identifier to query the user equipment routing policy URSP set;
  • the TD parameter inquired only includes the URSP of the currently processed APP ID, judge whether the RSD in the queried URSP indicates that a PDU Session needs to be established.
  • the URSP set includes multiple URSPs, and each URSP includes TD parameters and routing. Select the correspondence between the descriptors RSD;
  • the TD parameter is not queried and only includes the URSP of the currently processed APP ID, it is determined that the currently processed APP is an APP that fails to match.
  • the TD parameter of each URSP includes at least one of the following: application ID APP ID, operating system ID OS ID, data network name DNN, Internet Protocol IP triplet, Domain Descriptor , Non-IP Descriptor, Connection Capabilities.
  • the method for obtaining the TD parameter includes any one of the following:
  • the application program of the terminal is transferred to the operating system through the interface;
  • the terminal determines that the currently processed APP is an APP that fails to match, it acquires the next unprocessed APP and repeats this step until the last APP of the multiple APPs is processed.
  • the terminal acquiring multiple APPs installed on the local end includes: when the terminal is powered on, acquiring multiple APPs installed on the local end.
  • the method further includes: the terminal receiving the URSP set from a network device.
  • the terminal may specifically receive the URSP set from the network device when it is turned on.
  • the terminal can update the original URSP set stored locally according to the URSP set to obtain the updated URSP set.
  • the method further includes: the terminal obtains the locally stored URSP set.
  • the terminal can obtain the locally stored URSP set when it is powered on.
  • the terminal will not create a PDU Session for APPs that fail to match.
  • the terminal will configure a PDU Session for them in real time (create or bind an existing or use a non-non-3GPP channel).
  • the terminal can create a PDU Session for the APP that successfully matches the URSP by traversing multiple APPs, ensuring the comprehensiveness and accuracy of the service.
  • the method further includes: when the terminal uninstalls the first application, disconnecting the first PDU Session, and deleting the first APP and the first APP in the PDU Session set. Correspondence of the first PDU Session.
  • the terminal can also reserve the PDU Session for a period of time, such as one day, one week, etc., in the PDU Session collection without changing the uninstalled APP.
  • the specific duration can be set by the user, or the terminal can make intelligent settings based on user usage data.
  • the terminal determines that the APP is an APP frequently used by the user according to the user's application usage time, frequency and other information, and predicts that the user will still reinstall the APP within a week, and it can reserve its PDU Session for the APP for one week.
  • the terminal will disconnect the PDU Session of the APP and update the PDU Session set synchronously to ensure the consistency of the PDU Session information in the PDU Session set.
  • the URSP set may be a URSP set pre-stored locally, or a URSP set requested from a network device in real time, which is not uniquely limited here.
  • the terminal when the terminal installs a new APP, it can query the adapted URSP in real time, create a PDU Session for it when the matching is successful, and update the PDU Session set synchronously.
  • the method further includes: the terminal receives a URSP update instruction from a network device; the terminal updates its own URSP set according to the URSP update instruction; the terminal according to the updated URSP Collect and update the PDU Session collection.
  • the URSP update instruction may be issued by an operator or an APP provider to trigger a network device, or the terminal may request an update periodically, or request an update on demand, etc.
  • the terminal will switch the first PDU Session to other existing PDU Sessions, and update the PDU Session set The correspondence between the first APP and the first PDU Session.
  • Step 21 The terminal is turned on and sends a preset message (for example: cell registration request, etc.) to the network device.
  • a preset message for example: cell registration request, etc.
  • Step 22 The network device receives the preset message and issues a URSP rule table to the terminal.
  • Step 23 The terminal receives the URSP rule table, and updates the URSP rule table at the local end to obtain the updated rule table.
  • Step 24 The terminal queries all the APPs and APP IDs installed on the local end; by querying the URSP rules in the URSP rule table, creates a corresponding PDU Session for the APP that successfully matches the URSP; and establishes the correspondence between the application APP and the PDU Session:
  • Step 25 The terminal creates an operating system IP routing table through the APPID and the operating system process ID, and binds the APPID to the PUD Session.
  • the terminal completes the traversal detection of the PDU Session creation conditions of all APPs on the local end through the URSP rule table during the startup phase, and not all eligible APPs create an IP routing table, which improves the convenience of application use and system efficiency.
  • the embodiment of the present application provides a routing device for an application program, and the routing device for the application program may be a terminal. Specifically, the application routing device is used to execute the steps performed by the terminal in the above application routing method.
  • the apparatus for routing application programs provided in the embodiments of the present application may include modules corresponding to corresponding steps.
  • the query unit 31 is configured to use the first APP ID as a query identifier, query a preset protocol data unit PDU session Session set, and obtain the first PDU Session of the first application APP, and the PDU Session set includes APP Correspondence between ID and PDU Session;
  • the routing unit 32 is configured to route the data flow of the first APP to the first PDU Session for transmission.
  • the obtaining unit is also used to obtain multiple APPs installed on the local end;
  • the device also includes a creation unit and a creation unit,
  • the establishment unit is configured to establish a PDU Session for at least one of the multiple APPs for which the user equipment routing strategy URSP matches successfully.
  • the successful URSP match means that the path descriptor TD parameter of the URSP corresponding to the APP only includes the APP ID, and the URSP routing description RSD indicates that a PDU Session needs to be established;
  • the creating unit is configured to create the PDU Session set according to the PDU Session of the at least one successfully matched APP.
  • each APP in the plurality of APPs perform the following steps to obtain the PDU Session of at least one APP;
  • the URSP set includes multiple URSPs, and each URSP includes the correspondence between TD parameters and routing descriptor RSD;
  • the TD parameter is not queried and only includes the URSP of the currently processed APP ID, it is determined that the currently processed APP is an APP that fails to match.
  • the TD parameters of each URSP include at least one of the following: application ID APP ID, operating system ID OS ID, data network name DNN, Internet Protocol IP triplet, Domain Descriptor, non-IP Descriptor, Connection Capabilities.
  • the TD parameter acquisition method includes any one of the following:
  • the device further includes a receiving unit,
  • the receiving unit is configured to receive the URSP set from a network device.
  • the obtaining unit is further configured to obtain the locally stored URSP set.
  • the obtaining unit is specifically configured to obtain multiple APPs installed on the local end when the device is turned on.
  • the device further includes an unloading unit,
  • the device further includes an installation unit configured to obtain the ID of the second APP when the second APP is installed;
  • the query unit is further configured to query the URSP set using the second APP ID as a query identifier, and query the second URSP whose TD parameter only includes the second APP ID;
  • the device also includes a judging unit for judging that the second RSD in the second URSP indicates that a PDU Session needs to be established;
  • the device also includes an adding unit, configured to add the correspondence between the second APP and the second PDU Session to the PDU Session set.
  • the device also includes an update unit configured to update the local URSP set according to the URSP update instruction; and update the PDU Session set according to the updated URSP set.
  • the application routing device provided in the embodiment of the present application includes but is not limited to the above-mentioned modules.
  • the application routing device may further include the storage unit 33.
  • the storage unit 33 may be used to store the program code and data of the routing device of the application program.
  • the application routing device 4 includes: a processing module 40 and a communication module 41.
  • the processing module 40 is used to control and manage the actions of the routing device of the application, for example, the steps performed by the obtaining unit 30, the query unit 31, and the routing unit 32, and/or other processes used to perform the technology described herein .
  • the communication module 41 is used to support the interaction between the routing device of the application program and other devices.
  • the routing device for application programs may further include a storage module 42 for storing program codes and data of the routing device for application programs, for example, storing the content stored in the storage unit 33 described above.
  • the processing module 40 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an ASIC, an FPGA, or other programmable processors. Logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module 41 may be a transceiver, an RF circuit, a communication interface, or the like.
  • the storage module 42 may be a memory.
  • Both the application routing device 3 and the application routing device 4 can execute the steps performed by the terminal in the application routing method shown in FIG. 2A.
  • the embodiment of the present application also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the part described in the terminal in the above method embodiment Or all steps.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Some or all of the steps described.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the network in the above-mentioned method embodiment. Part or all of the steps described by the side device.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • 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.

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Abstract

Selon certains modes de réalisation, la présente demande divulgue un procédé de sélection de route pour un programme d'application et un dispositif associé. Le procédé consiste : à obtenir, par un terminal, un premier identifiant d'identité (ID) d'une application (APP) ; à prendre, par le terminal, le premier ID APP, en tant qu'identifiant d'interrogation, à interroger, par le terminal, un ensemble de sessions d'unité de données de protocole (PDU) prédéfini, et à obtenir, par le terminal, une première session PDU d'une première APP, l'ensemble de sessions PDU comprenant une correspondance entre l'ID de l'APP et les sessions PDU ; à acheminer, par le terminal, un flux de données de la première APP vers la première session PDU pour une transmission. Ainsi, dans les modes de réalisation de la présente demande, un trajet de routage peut être sélectionné pour l'APP selon l'ensemble de sessions PDU.
PCT/CN2020/106336 2020-05-08 2020-07-31 Procédé de sélection de route pour programme d'application, et dispositif associé WO2021223335A1 (fr)

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CN202010384892.5A CN111601353B (zh) 2020-05-08 2020-05-08 应用程序的路由选择方法及相关装置

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WO2023125856A1 (fr) * 2021-12-30 2023-07-06 维沃移动通信有限公司 Procédé et appareil permettant de surveiller et de rapporter des règles de politique ursp, terminal et élément de réseau

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