WO2022021371A1 - 一种会话建立方法、电子设备及存储介质 - Google Patents

一种会话建立方法、电子设备及存储介质 Download PDF

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Publication number
WO2022021371A1
WO2022021371A1 PCT/CN2020/106316 CN2020106316W WO2022021371A1 WO 2022021371 A1 WO2022021371 A1 WO 2022021371A1 CN 2020106316 W CN2020106316 W CN 2020106316W WO 2022021371 A1 WO2022021371 A1 WO 2022021371A1
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WO
WIPO (PCT)
Prior art keywords
information
rsc
electronic device
relay
session
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PCT/CN2020/106316
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English (en)
French (fr)
Inventor
刘建华
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202310372197.0A priority Critical patent/CN116582956A/zh
Priority to PCT/CN2020/106316 priority patent/WO2022021371A1/zh
Priority to EP20947286.9A priority patent/EP4185071A4/en
Priority to CN202080100152.2A priority patent/CN115443736A/zh
Publication of WO2022021371A1 publication Critical patent/WO2022021371A1/zh
Priority to US18/090,607 priority patent/US20230144620A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a session establishment method, an electronic device, and a storage medium.
  • RSC Relay Service Code
  • Embodiments of the present application provide a session establishment method, an electronic device, and a storage medium, which can specify how the electronic device establishes a relay session according to the RSC.
  • an embodiment of the present application provides a method for establishing a session, including: an electronic device determining code RSC information; and determining parameter information for establishing a relay session based on the RSC information.
  • an embodiment of the present application provides an electronic device, the electronic terminal device includes: a processing unit configured to determine RSC information, and determine parameter information for establishing a relay session based on the RSC information.
  • an embodiment of the present application provides an electronic device, including a processor and a memory for storing a computer program that can be executed on the processor, wherein the processor is configured to execute the electronic device when the computer program is executed. The steps of the session establishment method performed by the device.
  • an embodiment of the present application provides a chip, including: a processor for invoking and running a computer program from a memory, so that a device installed with the chip executes the session establishment method executed by the electronic device.
  • an embodiment of the present application provides a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned method for establishing a session executed by an electronic device is implemented.
  • an embodiment of the present application provides a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the above session establishment method executed by an electronic device.
  • an embodiment of the present application provides a computer program, where the computer program causes a computer to execute the session establishment method executed by the electronic device.
  • the session establishment method, electronic device, and storage medium provided by the embodiments of the present application include: the electronic device determines RSC information; and based on the RSC information, determines parameter information for establishing a relay session. In this way, the implementation process of establishing a relay session after the introduction of RSC is clarified.
  • FIG. 1 is a schematic diagram of a network structure of a relay according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a network architecture in an LTE system according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of relaying from a relay device to a network device according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of the composition and structure of a communication system according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of an optional processing flow of the session establishment method provided by the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of an optional composition of an electronic device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a hardware composition of an electronic device provided by an embodiment of the present application.
  • 3GPP introduced the relay function of terminal equipment to network (UE-to-network) based on layer 3 relay.
  • the network structure diagram of relay is shown in Figure 1.
  • the terminal terminal equipment (Remote UE) accesses the network through the relay terminal equipment (Relay UE), and the relay terminal equipment undertakes the function of the Internet Protocol (Internet Protocol, IP) layer relay, and transmits data between the remote terminal equipment and the network.
  • the remote terminal equipment and the relay terminal equipment are connected through side links. Wherein, before the remote terminal device and the relay terminal device perform the relay function, the remote terminal device and the relay terminal device need to be authorized.
  • the network architecture is shown in Figure 2, and the authorization of the remote terminal equipment and the relay terminal equipment is realized through the relay function (ProSe Function) entity through the PC3 interface.
  • FIG. 3 A schematic diagram of relaying from a relay device to a network device is shown in Figure 3.
  • the relay device In order to transmit the relay data of the remote device, the relay device needs to use an appropriate Protocol Data Unit (PDU) session; which PDU session to use Transmission of relay data is determined by the relay device.
  • PDU Protocol Data Unit
  • the relay device determines the parameters required to establish the PDU session according to the user equipment routing policy (User Equipment Routing Selection Policy, URSP) configured by the network.
  • User Equipment Routing Selection Policy User Equipment Routing Selection Policy
  • one RSC can represent one business attribute.
  • the remote device or relay device needs to be able to obtain parameter information related to session establishment from an RSC.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE system LTE frequency division duplex (frequency division duplex, FDD) system
  • LTE time division duplex time division duplex, TDD
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution system of NR system LTE-based access to unlicensed spectrum (LTE-based access to unlicensed spectrum) , LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system on unlicensed frequency bands
  • UMTS universal mobile telecommunication system
  • WiMAX wireless local area networks
  • WLAN wireless fidelity
  • WiFi wireless fidelity
  • the network equipment involved in the embodiments of this application may be a common base station (such as a NodeB or eNB or gNB), a new radio controller (NR controller), a centralized network element (centralized unit), a new radio base station, Remote radio module, micro base station, relay, distributed unit (distributed unit), reception point (transmission reception point, TRP), transmission point (transmission point, TP) or any other equipment.
  • a common base station such as a NodeB or eNB or gNB
  • NR controller new radio controller
  • a centralized network element centralized unit
  • a new radio base station Remote radio module
  • micro base station relay, distributed unit (distributed unit)
  • reception point transmission reception point
  • TRP transmission point
  • TP transmission point
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal device can also be a portable, pocket-sized , handheld, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc
  • network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the network device and the terminal device.
  • communication between the network device and the terminal device and between the terminal device and the terminal device can be performed through licensed spectrum (licensed spectrum), or through unlicensed spectrum (unlicensed spectrum), or both through licensed spectrum and unlicensed spectrum for communications.
  • Communication between network equipment and terminal equipment and between terminal equipment and terminal equipment can be carried out through the spectrum below 7 gigahertz (GHz), or through the frequency spectrum above 7 GHz, and can also use the frequency spectrum below 7 GHz and the frequency spectrum at the same time.
  • the spectrum above 7GHz is used for communication.
  • the embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • CRAN Cloud Radio Access Network
  • the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hub
  • the communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110 .
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- An FM broadcast transmitter; and/or a device of another terminal device configured to receive/transmit communication signals; and/or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • DVB-H Digital Video Broadband
  • satellite networks satellite networks
  • AM- An FM broadcast transmitter AM- An FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device arranged to communicate via a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal” or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communications capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal (Device to Device, D2D) communication may be performed between the terminal devices 120 .
  • the 5G system or 5G network may also be referred to as a new radio (New Radio, NR) system or NR network.
  • New Radio NR
  • FIG. 4 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • An optional processing flow of the session establishment method provided by the embodiment of the present application, as shown in FIG. 5 includes the following steps:
  • Step S201 the electronic device determines RSC information.
  • Step S202 the electronic device determines parameter information for establishing a relay session based on the RSC information.
  • the electronic device may be a relay device or a remote device.
  • the electronic device may be a terminal device or a small base station. That is, the electronic device may be a relay terminal device, or a remote terminal device, or a relay small base station, or a remote small base station.
  • the process of implementing the electronic device to determine the RSC information may be: during the PC5 connection establishment process, the relay device receives the RSC information sent by the remote device; wherein, the relay device The device and the remote device can establish a connection through the side link, that is, the RSC information is transmitted between the relay device and the remote device through the side link.
  • the process of implementing the electronic device to determine the parameter information for establishing a relay session based on the RSC information is the same, which may be: the electronic device Parameter information for establishing a relay session corresponding to the RSC information is determined according to a preconfigured rule.
  • the parameters of the relay session may include at least one or more of the following: network slice (Network Slice) information, data network name (Data Network Name, DNN) information, session service continuity (Session Service Continuity, SCC) Information and PDU session type.
  • the preconfigured rule includes at least one of the following: the first number of bits in the RSC information corresponds to the first network slice information in the parameter information for establishing the relay session ;
  • the bit information of the second number in the RSC information corresponds to the first DNN information in the parameter information for establishing a relay session;
  • the bit information of the third number in the RSC information corresponds to the first DNN information in the parameter information for establishing a relay session;
  • the bit information of the fourth number in the RSC information corresponds to the first PDU session type in the parameter information for establishing the relay session. That is, each part of the bit information in the RSC information corresponds to one of the parameter information for establishing a relay session.
  • the format of the RSC information is as shown in Table 1 below, and the network corresponding to the highest Nbit in the RSC information is pre-configured Slice, and the DNN corresponding to the next highest Mbit in the RSC information, the network slice information and the DNN information can be determined respectively according to the highest Nbit and the next highest Mbit information in the RSC information.
  • Nbit DNN information
  • Mbit Application Information
  • the format of the RSC information is stipulated by the agreement, or configured through subscription information, or configured by a public land mobile network (Public Land Mobile Network, PLMN).
  • PLMN Public Land Mobile Network
  • the preconfigured rules include: RSC information configured in the service description information field of the URSP rule; and/or, the parameters for establishing a relay session configured in the routing description information. That is, the RSC is configured in the service description information field of the service description information URSP; and/or the parameter information for establishing the relay session is configured in the routing description.
  • the URSP rule can be modified as shown in Table 2 below, and the bolded part is the newly added information based on the existing URSP rule.
  • the routing description can be modified as shown in Table 3 below, where the bolded part is newly added on the basis of the existing routing description table Information.
  • the electronic device if the electronic device is a remote device, after the electronic device performs step S202, it can also perform:
  • Step S203 the electronic device sends the parameter information for establishing the relay session to the relay device.
  • the relay device after the electronic device sends the parameter information for establishing the relay session to the relay device, the relay device establishes the PDU session according to the parameter information for establishing the relay session.
  • the relay device receives the RSC information sent by the remote device, and determines the parameter information corresponding to the RSC information for establishing the relay session according to the preconfigured rule; After the device determines the parameter information for establishing the relay session corresponding to the RSC information according to the preconfigured rule, the remote device sends the parameter information for establishing the relay session to the relay device. In this way, the relay device can establish a relay session according to the parameter information.
  • the electronic device 600 is a schematic diagram of the composition and structure, as shown in FIG. 6 , including:
  • the processing unit 601 is configured to determine RSC information, and determine parameter information for establishing a relay session based on the RSC information.
  • the processing unit 601 is configured to receive the RSC information sent by the remote device.
  • the processing unit 601 is configured to receive the RSC information sent by the remote device during the PC5 connection establishment process.
  • the processing unit 601 establishes a connection with the remote device through a sidelink.
  • the electronic device 600 further includes:
  • the sending unit 602 is configured to send the parameter information for establishing the relay session to the relay device.
  • the processing unit 601 is configured to determine, according to a preconfigured rule, parameter information for establishing a relay session corresponding to the RSC information.
  • the preconfigured rules include at least one of the following:
  • the bit information of the first number in the RSC information corresponds to the first network slice information in the parameter information for establishing the relay session
  • the second number of bit information in the RSC information corresponds to the first DNN information in the parameter information for establishing a relay session
  • the third number of bit information in the RSC information corresponds to the first SCC information in the parameter information for establishing a relay session
  • the fourth number of bit information in the RSC information corresponds to the first PDU session type in the parameter information for establishing the relay session.
  • the format of the RSC information is stipulated by the protocol, or configured by subscription information, or configured by the PLMN.
  • the preconfigured rules include: RSC information configured in the service description information field of the routing policy rule of the user equipment; Session parameter information.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • An embodiment of the present application further provides an electronic terminal device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the above-mentioned electronic device when running the computer program.
  • the steps of the session establishment method are described in detail below.
  • An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device on which the chip is installed executes the session establishment method executed by the electronic device.
  • Embodiments of the present application further provide a storage medium storing an executable program, and when the executable program is executed by a processor, the above-mentioned method for establishing a session executed by an electronic device is implemented.
  • Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the above session establishment method executed by an electronic device.
  • the embodiment of the present application further provides a computer program, the computer program enables the computer to execute the session establishment method executed by the electronic device.
  • FIG. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
  • the electronic device 700 includes: at least one processor 701 , a memory 702 and at least one network interface 704 .
  • the various components in electronic device 700 are coupled together by bus system 705 .
  • the bus system 705 is used to implement the connection communication between these components.
  • the bus system 705 also includes a power bus, a control bus and a status signal bus.
  • the various buses are labeled as bus system 705 in FIG. 7 .
  • memory 702 may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory.
  • the non-volatile memory can be ROM, Programmable Read-Only Memory (PROM, Programmable Read-Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read-Only Memory), Electrically Erasable Programmable Read-Only Memory Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); magnetic surface memory can be disk memory or tape memory.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Type Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.
  • the memory 702 in this embodiment of the present application is used to store various types of data to support the operation of the electronic device 700 .
  • Examples of such data include: any computer program used to operate on electronic device 700, such as application 7022.
  • the program for implementing the method of the embodiment of the present application may be included in the application program 7022 .
  • the methods disclosed in the above embodiments of the present application may be applied to the processor 701 or implemented by the processor 701 .
  • the processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software.
  • the above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the processor 701 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 700 may be implemented by one or more of Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD) , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal processor
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA general-purpose processor
  • controller MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请公开了一种会话建立方法，包括：电子设备确定中继业务代码(RSC)信息；基于所述RSC信息确定用于建立中继会话的参数信息。本申请还公开了一种电子设备及存储介质。

Description

一种会话建立方法、电子设备及存储介质 技术领域
本申请涉及无线通信技术领域，尤其涉及一种会话建立方法、电子设备及存储介质。
背景技术
在中继通信中，为了解决业务属性隐私问题，引入了中继服务代码(Relay Service Code，RSC)，包括远端设备和/或中继设备的电子设备如何根据RSC建立中继会话尚未被明确。
发明内容
本申请实施例提供一种会话建立方法、电子设备及存储介质，能够明确电子设备如何根据RSC建立中继会话。
第一方面，本申请实施例提供一种会话建立方法，包括：电子设备确定码RSC信息；基于所述RSC信息确定用于建立中继会话的参数信息。
第二方面，本申请实施例提供一种电子设备，所述电子端设备包括：处理单元，配置为确定RSC信息，基于所述RSC信息确定用于建立中继会话的参数信息。
第三方面，本申请实施例提供一种电子设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述电子设备执行的会话建立方法的步骤。
第四方面，本申请实施例提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述电子设备执行的会话建立方法。
第五方面，本申请实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述电子设备执行的会话建立方法。
第六方面，本申请实施例提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述电子设备执行的会话建立方法。
第七方面，本申请实施例提供一种计算机程序，所述计算机程序使得计算机执行上述电子设备执行的会话建立方法。
本申请实施例提供的会话建立方法、电子设备及存储介质，包括：电子设备确定RSC信息；基于所述RSC信息确定用于建立中继会话的参数信息。如此，明确了在引入RSC之后，建立中继会话的实现过程。
附图说明
图1为本申请实施例中继的网络结构示意图；
图2为本申请实施例LTE系统中的网络架构示意图；
图3为本申请实施例中继设备到网络设备的中继示意图；
图4为本申请实施例通信系统的组成结构示意图；
图5为本申请实施例提供的会话建立方法的一种可选处理流程示意图；
图6为本申请实施例提供的电子设备的一种可选组成结构示意图；
图7为本申请实施例提供的电子设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本申请实施例的特点和技术内容，下面结合附图对本申请实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本申请实施例。
在对本申请实施例进行说明之前，对相关内容进行简要说明。
在版本13(Rel-13 ProSe)中，3GPP引入了基于层3中继的终端设备到网络(UE-to-network)的中继功能，中继的网络结构示意图，如图1所示，远端终端设备(Remote UE)通过中继终端设备(Relay UE)接入网络，中继终端设备承担网络协议(Internet Protocol，IP)层中继的功能，在远端终端设备和网络间传递数据，而远端终端设备和中继终端设备则通过侧行链路相连。其中，在远端终端设备和中继终端设备进行中继功能之前，远端终端设备和中继终端设备需要被授权。其中，在长期演进(long term evolution，LTE)系统中，网络架构如图2所示，远端终端设备和中继终端设备的授权是通过中继功能(ProSe Function)实体通过PC3接口实现。
中继设备到网络设备的中继示意图，如图3所示，为了传输远端设备的中继数据，中继设备需要使用合适的协议数据单元(Protocol Data Unit，PDU)会话；使用哪个PDU会话传输中继数据由中继设备确定。中继设备建立中继PDU会话时需要响应的参数。在通常的会话建立过程中，中继设备根据网络配置的用户设备路由选择策略(User Equipment Routing Selection Policy，URSP)确规则定建立PDU会话需要的参数。
但是，为了解决业务属性隐私问题，引入了RSC之后，一个RSC可以表征一个业务属性。远端设备或者中继设备需要能够从一个RSC获得会话建立相关的参数信息。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、LTE系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、先进的长期演进(advanced long term evolution，LTE-A)系统、新无线(new radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、无线局域网(wireless local area networks，WLAN)、无线保真(wireless fidelity，WiFi)、下一代通信系统或其他通信系统等。
本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例中涉及的网络设备，可以是普通的基站(如NodeB或eNB或者gNB)、新无线控制器(new radio controller，NR controller)、集中式网元(centralized unit)、新无线基站、射频拉远模块、微基站、中继(relay)、分布式网元(distributed unit)、接收点(transmission reception point，TRP)、传输点(transmission point，TP)或者任何其它设备。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述，本申请所有实施例中，上述为终端设备提供无线通信功能的装置统称为网络设备。
在本申请实施例中，终端设备可以是任意的终端，比如，终端设备可以是机器类通信的用户设备。也就是说，该终端设备也可称之为用户设备UE、移动台(mobile station，MS)、移动终端(mobile terminal)、终端(terminal)等，该终端设备可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，例如，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交 换语言和/或数据。本申请实施例中不做具体限定。
可选的，网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对网络设备和终端设备的应用场景不做限定。
可选的，网络设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过非授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和非授权频谱进行通信。网络设备和终端设备之间以及终端设备和终端设备之间可以通过7吉兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过7GHz以上的频谱进行通信，还可以同时使用7GHz以下的频谱和7GHz以上的频谱进行通信。本申请的实施例对网络设备和终端设备之间所使用的频谱资源不做限定。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(device to device，D2D)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及车辆间(vehicle to vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
示例性的，本申请实施例应用的通信系统100，如图4所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如， 针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图4示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图4示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
本申请实施例提供的会话建立方法的一种可选处理流程，如图5所示，包括以下步骤：
步骤S201，电子设备确定RSC信息。
步骤S202，电子设备基于所述RSC信息确定用于建立中继会话的参数信息。
在本申请实施例中，电子设备可以是中继设备，也可以是远端设备。其中，电子设备可以是终端设备，也可以是小基站。即电子设备可以是中继终端设备，或远端终端设备，或中继小基站，或远端小基站。
在电子设备是中继设备的情况下，针对步骤S201，实施电子设备确定RSC信息的处理过程可以是：在PC5连接建立过程中，中继设备接收远端设备发送的RSC信息；其中，中继设备与远端设备可以通过侧行链路建立连接，即之间中继设备与远端设备通过侧行链路传输RSC信息。
在电子设备是中继设备或电子设备是远端设备的情况下，针对步骤S202，实施电子设备基于所述RSC信息确定用于建立中继会话的参数信息的处理过程相同，可以是：电子设备根据预配置的规则，确定与所述RSC信息对应的用于建立中继会话的参数信息。其中，中继会话的参数至少可以包括下述中的一项或多项：网络切片(Network Slice)信息、数据网络名称(Data Network Name，DNN)信息、会话服务连续(Session Service Continuity，SCC)信息和PDU会话类型。
在一些可选实施方式中，预配置的规则包括下述中的至少一种：所述RSC信息中第一数目的比特信息，对应用于建立中继会话的参数信息中的第一网络切片信息；所述RSC信息中第二数目的比特信息，对应用于建立中继会话的参数信息中的第一DNN信息；所述RSC信息中第三数目的比特信息，对应用于建立中继会话的参数信息中的第一SCC信息；所述RSC信息中第四数目的比特信息，对应用于建立中继会话的参数信息中的第一PDU会话类型。即RSC信息中每一部分比特信息对应用于建立中继会话的参数信息中的一种，举例来说，RSC信息的格式，如下表1所示，预先配置RSC信息中最高位的Nbit对应的网络切片，以及RSC信息中次高位的Mbit对应的DNN，则根据RSC信息中的最高位的Nbit和次高位的Mbit信息能分别确定出网络切片信息和DNN信息。
Slice信息(Nbit) DNN信息(Mbit) 应用信息
表1
其中，RSC信息的格式由协议约定、或通过签约信息配置、或由公共陆地移动网络(Public Land Mobile Network，PLMN)配置。
在另一些可选实施方式中，所述预配置的规则包括：URSP规则的业务描述信息域 中配置的RSC信息；和/或，路由选择描述中配置的所述用于建立中继会话的参数信息。即在业务描述信息URSP的业务描述信息域中配置RSC；和/或，在路由选择描述中配置用于建立中继会话的参数信息。
其中，若在URSP的业务描述信息域中配置RSC信息，则URSP规则可以修改为如下表2所示，字体加粗部分为在已有的URSP规则的基础上新增的信息。
Figure PCTCN2020106316-appb-000001
表2
若在路由选择描述中配置用于建立中继会话的参数信息，则路由选择描述可以修改为如下表3所示，其中，字体加粗部分为在已有的路由选择描述表的基础上新增的信息。
Figure PCTCN2020106316-appb-000002
表3
在一些可选实施方式中，若电子设备为远端设备，则电子设备执行步骤S202之后，还可以执行：
步骤S203，电子设备向中继设备发送所述用于建立中继会话的参数信息。
在一些实施例中，电子设备向中继设备发送用于建立中继会话的参数信息之后，中继设备根据用于建立中继会话的参数信息建立PDU会话。
本申请实施例提供的会话建立方法，由中继设备接收远端设备发送的RSC信息，并根据预配置的规则，确定与RSC信息对应的用于建立中继会话的参数信息；或者由远端设备根据预配置的规则，确定与RSC信息对应的用于建立中继会话的参数信息之后，远端设备将用于建立中继会话的参数信息发送给中继设备。如此，中继设备能够根据该参数信息建立中继会话。
为实现本申请实施例提供的会话建立方法，本申请实施例还提供一种电子设备，所述电子设备600的组成结构示意图，如图6所示，包括：
处理单元601，配置为确定RSC信息，基于所述RSC信息确定用于建立中继会话的参数信息。
在一可选实施方式中，所述处理单元601，配置为接收远端设备发送的所述RSC信息。
在一可选实施方式中，所述处理单元601，配置为在PC5连接建立过程中，接收所 述远端设备发送的所述RSC信息。
在一可选实施方式中，所述处理单元601与所述远端设备通过侧行链路建立连接。
在一可选实施方式中，所述电子设备600还包括：
发送单元602，配置为向中继设备发送所述用于建立中继会话的参数信息。
在一可选实施方式中，所述处理单元601，配置为根据预配置的规则，确定与所述RSC信息对应的用于建立中继会话的参数信息。
在一可选实施方式中，所述预配置的规则包括下述中的至少一种：
所述RSC信息中第一数目的比特信息，对应用于建立中继会话的参数信息中的第一网络切片信息；
所述RSC信息中第二数目的比特信息，对应用于建立中继会话的参数信息中的第一DNN信息；
所述RSC信息中第三数目的比特信息，对应用于建立中继会话的参数信息中的第一SCC信息；
所述RSC信息中第四数目的比特信息，对应用于建立中继会话的参数信息中的第一PDU会话类型。
在一可选实施方式中，所述RSC信息的格式由协议约定、或通过签约信息配置、或由PLMN配置。
在一可选实施方式中，所述预配置的规则包括：用户设备路由选择策略规则的业务描述信息域中配置的RSC信息；和/或，路由选择描述中配置的所述用于建立中继会话的参数信息。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本申请实施例还提供一种电子端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述电子设备执行的会话建立方法的步骤。
本申请实施例还提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行上述电子设备执行的会话建立方法。
本申请实施例还提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述电子设备执行的会话建立方法。
本申请实施例还提供一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述电子设备执行的会话建立方法。
本申请实施例还提供一种计算机程序，所述计算机程序使得计算机执行上述电子设备执行的会话建立方法。
图7是本申请实施例的电子设备的硬件组成结构示意图，电子设备700包括：至少一个处理器701、存储器702和至少一个网络接口704。电子设备700中的各个组件通过总线系统705耦合在一起。可理解，总线系统705用于实现这些组件之间的连接通信。总线系统705除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图7中将各种总线都标为总线系统705。
可以理解，存储器702可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是ROM、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本申请实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例中的存储器702用于存储各种类型的数据以支持电子设备700的操作。这些数据的示例包括：用于在电子设备700上操作的任何计算机程序，如应用程序 7022。实现本申请实施例方法的程序可以包含在应用程序7022中。
上述本申请实施例揭示的方法可以应用于处理器701中，或者由处理器701实现。处理器701可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器701可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器702，处理器701读取存储器702中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，电子设备700可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现，用于执行前述方法。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
应理解，本申请中术语“系统”和“网络”在本文中常被可互换使用。本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (23)

  1. 一种会话建立方法，所述方法包括：
    电子设备确定中继业务代码RSC信息；
    基于所述RSC信息确定用于建立中继会话的参数信息。
  2. 根据权利要求1所述的方法，其中，所述终端设备为中继设备的情况下，所述电子设备确定RSC信息，包括：
    所述电子设备接收远端设备发送的所述RSC信息。
  3. 根据权利要求2所述的方法，其中，所述电子设备接收远端设备发送的所述RSC信息，包括：
    在PC5连接建立过程中，所述电子设备接收所述远端设备发送的所述RSC信息。
  4. 根据权利要求2或3所述的方法，其中，所述电子设备与所述远端设备通过侧行链路建立连接。
  5. 根据权利要求1所述的方法，其中，在所述电子设备为远端设备的情况下，所述方法还包括：
    所述电子设备向中继设备发送所述用于建立中继会话的参数信息。
  6. 根据权利要求1至5任一项所述的方法，其中，所述基于所述RSC信息确定用于建立中继会话的参数信息，包括：
    所述电子设备根据预配置的规则，确定与所述RSC信息对应的用于建立中继会话的参数信息。
  7. 根据权利要求6所述的方法，其中，所述预配置的规则包括下述中的至少一种：
    所述RSC信息中第一数目的比特信息，对应用于建立中继会话的参数信息中的第一网络切片信息；
    所述RSC信息中第二数目的比特信息，对应用于建立中继会话的参数信息中的第一数据网络名称DNN信息；
    所述RSC信息中第三数目的比特信息，对应用于建立中继会话的参数信息中的第一会话服务连续SCC信息；
    所述RSC信息中第四数目的比特信息，对应用于建立中继会话的参数信息中的第一协议数据单元PDU会话类型。
  8. 根据权利要求7所述的方法，其中，所述RSC信息的格式由协议约定、或通过 签约信息配置、或由公共陆地移动网络PLMN配置。
  9. 根据权利要求6所述的方法，其中，所述预配置的规则包括：
    用户设备路由选择策略规则的业务描述信息域中配置的RSC信息；
    和/或，路由选择描述中配置的所述用于建立中继会话的参数信息。
  10. 一种电子设备，所述电子设备包括：
    处理单元，配置为确定中继业务代码RSC信息，基于所述RSC信息确定用于建立中继会话的参数信息。
  11. 根据权利要求10所述的电子设备，其中，所述处理单元，配置为接收远端设备发送的所述RSC信息。
  12. 根据权利要求11所述的电子设备，其中，所述处理单元，配置为在PC5连接建立过程中，接收所述远端设备发送的所述RSC信息。
  13. 根据权利要求11或12所述的电子设备，其中，所述处理单元与所述远端设备通过侧行链路建立连接。
  14. 根据权利要求10所述的电子设备，其中，所述电子设备还包括：
    发送单元，配置为向中继设备发送所述用于建立中继会话的参数信息。
  15. 根据权利要求10至14任一项所述的电子设备，其中，所述处理单元，配置为根据预配置的规则，确定与所述RSC信息对应的用于建立中继会话的参数信息。
  16. 根据权利要求15所述的电子设备，其中，所述预配置的规则包括下述中的至少一种：
    所述RSC信息中第一数目的比特信息，对应用于建立中继会话的参数信息中的第一网络切片信息；
    所述RSC信息中第二数目的比特信息，对应用于建立中继会话的参数信息中的第一数据网络名称DNN信息；
    所述RSC信息中第三数目的比特信息，对应用于建立中继会话的参数信息中的第一会话连续服务SCC信息；
    所述RSC信息中第四数目的比特信息，对应用于建立中继会话的参数信息中的第一PDU会话类型。
  17. 根据权利要求16所述的电子设备，其中，所述RSC信息的格式由协议约定、或通过签约信息配置、或由公共陆地移动网络PLMN配置。
  18. 根据权利要求15所述的电子设备，其中，所述预配置的规则包括：
    用户设备路由选择策略规则的业务描述信息域中配置的RSC信息；
    和/或，路由选择描述中配置的所述用于建立中继会话的参数信息。
  19. 一种电子设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，
    所述处理器用于运行所述计算机程序时，执行权利要求1至9任一项所述的会话建立方法的步骤。
  20. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求1至9任一项所述的会话建立方法。
  21. 一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至9任一项所述的会话建立方法。
  22. 一种计算机程序，所述计算机程序使得计算机执行如权利要求1至9任一项所述的会话建立方法。
  23. 一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至9任一项所述的会话建立方法。
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