WO2022021435A1 - 数据传输方法、设备及存储介质 - Google Patents

数据传输方法、设备及存储介质 Download PDF

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Publication number
WO2022021435A1
WO2022021435A1 PCT/CN2020/106437 CN2020106437W WO2022021435A1 WO 2022021435 A1 WO2022021435 A1 WO 2022021435A1 CN 2020106437 W CN2020106437 W CN 2020106437W WO 2022021435 A1 WO2022021435 A1 WO 2022021435A1
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WO
WIPO (PCT)
Prior art keywords
information
network element
remote device
ursp
pcf network
Prior art date
Application number
PCT/CN2020/106437
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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.)
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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 CN202080101507.XA priority Critical patent/CN115669185A/zh
Priority to PCT/CN2020/106437 priority patent/WO2022021435A1/zh
Publication of WO2022021435A1 publication Critical patent/WO2022021435A1/zh

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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
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • 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
    • H04L45/80—Ingress point selection by the source endpoint, e.g. selection of ISP or POP
    • H04L45/85—Selection among different networks
    • 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
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • 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

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a data transmission method, device, and storage medium.
  • UE route selection policy UE route selection policy
  • URSP user equipment routing policy
  • the user equipment obtains the URSP information that the device needs to follow from the PCF network element of the policy control function of the core network and provides it to the user equipment.
  • the user equipment can route the data to be sent by the application according to the URSP information.
  • Embodiments of the present application provide a data transmission method, device, and storage medium, which implement a technical solution in which a remote device obtains a session establishment rule configured by a network through a relay device, and establishes a relay service session.
  • an embodiment of the present application provides a data transmission method, including: a policy control function PCF network element generates user equipment routing policy URSP information, where the URSP information is used to indicate a session establishment policy for a relay service; the PCF The network element sends the URSP information to the remote device through the relay device.
  • an embodiment of the present application provides a data transmission method, including: a relay device receives user equipment routing policy URSP information sent by a policy control function PCF network element, where the URSP information is used to indicate session establishment of a relay service strategy; the relay device sends the URSP information to the remote device.
  • an embodiment of the present application provides a data transmission method, comprising: a remote device receiving user equipment routing policy URSP information sent by a policy control function PCF network element, where the URSP information is used to indicate session establishment of a relay service policy; the remote device establishes a session according to the URSP information.
  • an embodiment of the present application provides a network device, including: a processing module configured to generate user equipment routing policy URSP information, where the URSP information is used to indicate a session establishment policy for a relay service; a sending module configured to Send the URSP information to the remote device through the relay device.
  • an embodiment of the present application provides a relay device, including: a receiving module configured to receive user equipment routing policy URSP information sent by a policy control function PCF network element, where the URSP information is used to indicate a relay service A session establishment strategy; a sending module, configured to send the URSP information to a remote device.
  • an embodiment of the present application provides a remote device, including: a receiving module configured to receive user equipment routing policy URSP information sent by a policy control function PCF network element, where the URSP information is used to indicate a relay service a session establishment strategy; a processing module, configured to establish a session according to the URSP information.
  • an embodiment of the present application provides a network device, including: a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that all The processor executes the computer program to perform the method of any one of the first aspects.
  • an embodiment of the present application provides a relay device, including: a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that The processor executes the computer program to perform the method of any one of the second aspects.
  • an embodiment of the present application provides a remote device, including: a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that The processor executes the computer program to perform the method of any one of the third aspects.
  • an embodiment of the present application provides a storage medium, where the storage medium includes a computer program, and the computer program is used to implement the method according to any one of the first aspects.
  • an embodiment of the present application provides a storage medium, where the storage medium includes a computer program, and the computer program is used to implement the method according to any one of the second aspects.
  • an embodiment of the present application provides a storage medium, where the storage medium includes a computer program, and the computer program is used to implement the method according to any one of the third aspects.
  • Embodiments of the present application provide a data transmission method, device, and storage medium.
  • the method includes: a remote device sends information of the remote device to a PCF network element of a core network through a relay device, and the PCF network element sends the information of the remote device to the PCF network element according to the information of the remote device.
  • the URSP information is generated, and the PCF network element sends the URSP information to the remote device through the relay device, so that the remote device establishes a PDU session of the relay service according to the URSP information.
  • the above method enables a remote device located outside the network coverage to connect to the network through a relay device, and establishes a PDU session according to the URSP information delivered by the network, thereby improving data transmission efficiency.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a scenario provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a scenario provided by an embodiment of the present application.
  • FIG. 4 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • FIG. 5 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • FIG. 6 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • FIG. 7 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a relay device according to an embodiment of the application.
  • FIG. 11 is a schematic structural diagram of a relay device according to an embodiment of the application.
  • FIG. 12 is a schematic structural diagram of a remote device according to an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of a remote device according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a hardware structure of a relay device according to an embodiment of the application.
  • FIG. 16 is a schematic diagram of a hardware structure of a remote device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the 5G network architecture released by the 3GPP standard group includes: terminal (user equipment, UE), access network (including radio access network, RAN or access network, AN) supporting 3GPP technology, user plane function (user plane function, UPF) network element, access and mobility management function (AMF) network element, session management function (session management function, SMF) network element, policy control function (policy control function, PCF) Network element, application function (AF) and data network (DN).
  • terminal user equipment
  • UPF user plane function
  • AMF access and mobility management function
  • SMF session management function
  • policy control function policy control function
  • PCF policy control function
  • DN data network
  • the 5G network architecture shown in FIG. 1 does not constitute a limitation of the 5G network architecture.
  • the 5G network architecture may include more or less network elements than the one shown in the figure, or Combine certain network elements, etc.
  • the AN or RAN is represented in FIG. 1 in terms of (R)AN.
  • the terminal in the embodiment of the present application may be a user equipment (user equipment, UE), a handheld terminal, a notebook computer, a subscriber unit (subscriber unit), a cellular phone (cellular phone), a smart phone (smart phone), a wireless data card, a personal Personal digital assistant (PDA) computer, tablet, wireless modem, handheld, laptop computer, cordless phone, or wireless local loop loop, WLL) stations, machine type communication (MTC) terminals, handheld devices with wireless communication capabilities, computing devices, processing devices connected to wireless modems, drones, in-vehicle devices, wearable devices, Internet of Things terminal in the future, virtual reality equipment, terminal equipment in the future 5G network, terminal in the future evolved public land mobile network (PLMN), etc.
  • PDA personal Personal digital assistant
  • MTC machine type communication
  • the access network device in the embodiment of the present application is the access device that the terminal accesses to the network architecture in a wireless manner, and is mainly responsible for radio resource management, quality of service (QoS) management, data compression and control on the air interface side. encryption, etc.
  • base station NodeB evolved base station eNodeB
  • base station in 5G mobile communication system or new generation wireless (new radio, NR) communication system base station in future mobile communication system, etc.
  • the UPF network element, the AMF network element, the SMF network element, and the PCF network element are network elements of the 3GPP core network (abbreviation: core network network element).
  • UPF network elements can be called user plane function network elements, which are mainly responsible for the transmission of user data.
  • Other network elements can be called control plane function network elements, which are mainly responsible for authentication, authentication, registration management, session management, mobility management and policy control. etc. to ensure reliable and stable transmission of user data.
  • UPF network elements can be used to forward and receive terminal data.
  • the UPF network element can receive service data from the data network and transmit it to the terminal through the access network device; the UPF network element can also receive user data from the terminal through the access network device and forward it to the data network.
  • the transmission resources allocated and scheduled by the UPF network element for the terminal are managed and controlled by the SMF network element.
  • the bearer between the terminal and the UPF network element may include: a user plane connection between the UPF network element and the access network device, and establishing a channel between the access network device and the terminal.
  • the user plane connection is a quality of service (quality of service, QoS) flow (flow) that can establish transmission data between the UPF network element and the access network device.
  • QoS quality of service
  • the AMF network element can be used to manage terminal access to the core network, such as: terminal location update, network registration, access control, terminal mobility management, terminal attachment and detachment, and so on.
  • the AMF network element may also provide storage resources of the control plane for the session in the case of providing services for the session of the terminal, so as to store the session identifier, the SMF network element identifier associated with the session identifier, and the like.
  • the SMF network element can be used to select a user plane network element for the terminal, redirect the user plane network element for the terminal, assign an Internet Protocol (IP) address to the terminal, and establish a bearer between the terminal and the UPF network element (also called session), session modification, release, and QoS control.
  • IP Internet Protocol
  • the PCF network element is used to provide policies, such as QoS policies and slice selection policies, to the AMF network elements and the SMF network elements.
  • the AF network element is used to interact with the 3GPP core network element to support the routing of applications affecting data, to access the network exposure function, and to interact with the PCF network element for policy control.
  • the DN can provide data services for users such as IP multi-media service (IMS) networks and the Internet.
  • IMS IP multi-media service
  • AS application servers
  • the AS can implement the function of AF.
  • a proximity service (Proximity Services, ProSe) technology can be used to enable UEs outside the cell coverage to communicate with the base station through the UEs within the cell coverage to improve data transmission efficiency.
  • ProSe Proximity Services
  • UEs outside the cell coverage are called remote UEs
  • UEs within the cell coverage are called relay UEs (relay UEs), as shown in FIG. 1 .
  • the remote UE uses the discovery process in the ProSe technology to determine the relay UE, and establishes connection and communication with the relay UE.
  • the remote UE accesses the network through the relay UE, and the relay UE is used to transmit the information between the remote UE and the network.
  • the data is used to transmit the information between the remote UE and the network.
  • FIG. 2 is a schematic diagram of a scenario provided by an embodiment of the present application.
  • the remote UE communicates with the public land mobile network PLMN2 where the relay device is located through the relay UE.
  • the policy control function network element PCF2 in PLMN2 needs to obtain policy information of the remote UE from PCF1 in the home public land mobile network HPLMN of the remote UE, and generate user equipment routing policy URSP information according to the policy information.
  • the remote UE obtains the URSP information through the relay UE, thereby establishing a PDU session.
  • FIG. 3 is a schematic diagram of a scenario provided by an embodiment of the present application.
  • the remote UE communicates with the PLMN1 where the relay device is located through the relay UE.
  • the difference from FIG. 2 is that the PLMN1 where the relay device is located is That is, the HPLMN of the remote UE.
  • the PCF1 in the PLMN1 directly generates the URSP information, and sends the URSP information to the remote UE through the relay UE, and the remote UE establishes a PDU session according to the URSP information.
  • an embodiment of the present application provides a data transmission method that generates and configures a session establishment rule for a remote device, and implements a technical solution for the remote device to establish a relay service session through a relay device.
  • the method includes: after the remote device establishes a connection with the relay device, the remote device sends the information of the remote device to the network side through the relay device, the network side generates URSP information according to the information of the remote device, and sends the URSP information to the network side through the relay device.
  • the remote device sends URSP information, where the URSP information is used to indicate a session establishment policy of the relay service.
  • the remote device establishes a PDU session according to the received URSP information.
  • FIG. 4 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application. As shown in Figure 4, the method provided by this embodiment includes the following steps:
  • Step 101 The remote device sends the information of the remote device to the relay device.
  • the information of the remote device sent by the remote device to the relay device includes at least one of the following:
  • the ID of the remote device the Internet Protocol IP address, and the port number.
  • the identifier of the remote device may be SUPI (SUbscription Permanent Identifier), and SUPI is the unique permanent identity marker of the user in the 5G network, similar to the International Mobile Subscriber Identity (International Mobile Subscriber Identity) in the LTE (Long Term Evolution, Long Term Evolution) network. International Mobile Subscriber Identity, IMSI).
  • SUPI Service Permanent Identifier
  • IMSI International Mobile Subscriber Identity
  • Step 102 The relay device sends the information of the remote device to the PCF network element.
  • the relay device sends the information of the remote device to the PCF network element, which specifically includes: the relay device sends a non-connection layer NAS message to the PCF network element, where the NAS message includes the remote device. device information.
  • Step 103 The PCF network element generates URSP information according to the information of the remote device.
  • the URSP information generated by the PCF network element is used to indicate the session establishment policy of the relay service of the remote device.
  • the PCF network element is a PCF network element of the public land mobile network HPLMN where the remote device belongs.
  • the PCF network element generates the URSP information according to the information of the remote device, which specifically includes: the PCF network element generates the UPSP information according to the local configuration information and the information of the remote device.
  • the local configuration information includes policy information of the remote device.
  • the PCF network element is the PCF network element of the public land mobile network PLMN where the relay device is located, and the PLMN where the relay device is located and the HPLMN of the remote device are different networks.
  • the PCF network element generates the URSP information according to the information of the remote device, which specifically includes: the PCF network element generates the URSP information according to the policy information of the remote device and the information of the remote device, wherein the policy information of the remote device is the data obtained by the PCF network element from the information of the remote device. It is obtained from the PCF network element of the HPLMN of the remote device.
  • the URSP information includes at least one of the following:
  • Session description information for relay services user session parameters.
  • the session description information used for the relay service includes application identification, IP address information, media access control address (Media Access Control Address, MAC) information, service type information, and the like.
  • the service type information includes relay service type information.
  • the user session parameters include data network name (DNN) information, S-NSSAI (Single Network Slice Selection Assistance Information) information, session type information, service path information, relay mode information, and the like.
  • the relay mode information includes layer 3 relay, layer 2 relay, and N3IWF (Non-3GPP InterWorking Function) relay mode.
  • Step 104 The PCF network element sends the URSP information to the relay device.
  • the PCF network element sending the URSP information to the relay device specifically includes: the PCF network element sending a NAS message to the relay device, and the NAS message includes the URSP information.
  • Step 105 The relay device sends the URSP information to the remote device.
  • the relay device sends the URSP information to the remote device, which specifically includes: the relay device sends a PC5-S message to the remote device, where the PC5-S message includes the URSP information.
  • the relay device receives the URSP information sent by the PCF network element, and the URSP information is contained in the transparent container.
  • the device forwards URSP information.
  • the relay device receives the URSP information sent by the PCF network element, the URSP information is contained in the transparent container, the relay device reads the content in the transparent container, and generates a configuration according to the URSP information. information, and send configuration information to the remote device, where the configuration information is used to indicate the URSP information.
  • Step 106 the remote device establishes a PDU session according to the URSP information.
  • the remote device sends the information of the remote device to the PCF network element of the core network through the relay device. Send the URSP information to the remote device, so that the remote device establishes a PDU session of the relay service according to the URSP information.
  • the above method enables a remote device located outside the network coverage to connect to the network through a relay device, and establishes a PDU session according to the URSP information delivered by the network, thereby improving data transmission efficiency.
  • FIG. 5 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application. The difference from FIG. 4 is that the relay device in this embodiment transmits data to the PCF network element through the AMF network element of the core network. As shown in Figure 5, the method provided by this embodiment includes the following steps:
  • Step 201 The remote device sends the information of the remote device to the relay device.
  • Step 202 The relay device sends the information of the remote device to the AMF network element.
  • the relay device sends the information of the remote device to the AMF network element, which specifically includes: the relay device sends a NAS message to the AMF network element, where the NAS message includes the information of the remote device.
  • Step 203 The AMF network element sends the information of the remote device to the PCF network element.
  • the AMF network element sends a NAS message to the PCF network element, where the NAS message includes information of the remote device.
  • Step 204 The PCF network element generates URSP information according to the information of the remote device.
  • Step 205 The PCF network element sends the URSP information to the relay device.
  • Step 206 The relay device sends the URSP information to the remote device.
  • Step 207 The remote device establishes a PDU session according to the URSP information.
  • Steps 201 , 204 to 207 in this embodiment are the same as steps 101 , 103 to 106 in the foregoing embodiment, and details may refer to the foregoing embodiment, which will not be repeated here.
  • the remote device sends the information of the remote device to the PCF network element of the core network through the relay device, wherein the relay device sends the information of the remote device to the PCF network element through the AMF network element , the PCF network element generates URSP information according to the information of the remote device, and the PCF network element sends the URSP information to the remote device through the relay device, so that the remote device establishes the PDU session of the relay service according to the URSP information.
  • the above method enables a remote device located outside the network coverage to connect to the network through a relay device, and establishes a PDU session according to the URSP information delivered by the network, thereby improving data transmission efficiency.
  • FIG. 6 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application. The difference from FIG. 4 is that the relay device in this embodiment transmits data to the PCF network element through the SMF network element and the AMF network element of the core network. As shown in Figure 6, the method provided by this embodiment includes the following steps:
  • Step 301 The remote device sends the information of the remote device to the relay device.
  • Step 302 The relay device sends the information of the remote device to the AMF network element.
  • the relay device sends the information of the remote device to the AMF network element, which specifically includes: the relay device sends a NAS message to the AMF network element, where the NAS message includes the information of the remote device.
  • Step 303 The AMF network element sends the information of the remote device to the SMF network element.
  • the AMF network element after receiving the NAS message sent by the relay device, the AMF network element reads the information of the remote device in the NAS message, and sends the information of the remote device to the SMF network. Yuan.
  • Step 304 The SMF network element sends the information of the remote device to the PCF network element.
  • Step 305 The PCF network element generates URSP information according to the information of the remote device.
  • Step 306 The PCF network element sends the URSP information to the relay device.
  • Step 307 The relay device sends the URSP information to the remote device.
  • Step 308 the remote device establishes a PDU session according to the URSP information.
  • Steps 301 , 305 to 308 in this embodiment are the same as steps 101 , 103 to 106 in the foregoing embodiment, and details may refer to the foregoing embodiment, which will not be repeated here.
  • the remote device sends the information of the remote device to the PCF network element of the core network through the relay device, wherein the relay device sends the information of the remote device to the AMF network element of the core network, The AMF network element then sends the information of the remote device to the SMF network element of the core network, and finally the SMF network element sends the information of the remote device to the PCF network element.
  • the PCF network element generates URSP information according to the information of the remote device, and the PCF network element sends the URSP information to the remote device through the relay device, so that the remote device can establish a PDU session of the relay service according to the URSP information.
  • the above method enables a remote device located outside the network coverage to connect to the network through a relay device, and establishes a PDU session according to the URSP information delivered by the network, thereby improving data transmission efficiency.
  • FIG. 7 is an interactive schematic diagram of a data transmission method provided by an embodiment of the present application.
  • the PCF network element in this embodiment includes a first PCF network element and a second PCF network element.
  • the first PCF network element is the PCF network element of the PLMN where the relay device is located
  • the second PCF network element is the PCF network element of the HPLMN of the remote device
  • the PLMN where the relay device is located and the HPLMN of the remote device are different networks.
  • the data transmission method provided in this embodiment can be applied to the scenario shown in FIG. 2 , where the first PCF network element corresponds to PCF2 in FIG. 2 , and the second PCF network element corresponds to PCF1 in FIG. 2 .
  • the method provided by this embodiment includes the following steps:
  • Step 401 The remote device sends the information of the remote device to the relay device.
  • Step 402 The relay device sends the information of the remote device to the first PCF network element.
  • Step 403 The first PCF network element acquires the policy information of the remote device from the second PCF network element.
  • Step 404 The first PCF network element generates URSP information according to the policy information of the remote device and the information of the remote device.
  • Step 405 The first PCF network element sends URSP information to the relay device.
  • Step 406 The relay device sends the URSP information to the remote device.
  • Step 407 the remote device establishes a PDU session according to the URSP information.
  • the remote device sends the information of the remote device to the first PCF network element of the network where the relay device is located through the relay device, and the first PCF network element receives the information from the second PCF of the HPLMN of the remote device.
  • the network element obtains the policy information of the remote device, the first PCF network element generates URSP information according to the policy information of the remote device and the information of the remote device, and the first PCF network element sends the URSP information to the remote device through the relay device, So that the remote device can establish a PDU session of the relay service according to the URSP information.
  • the above method enables the remote device located outside the network coverage to connect to the network where the relay device is located through the relay device, and establishes a PDU session according to the URSP information delivered by the network, thereby improving the data transmission efficiency.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device 500 provided in this embodiment of the present application includes:
  • a processing module 501 configured to generate user equipment routing policy URSP information, where the URSP information is used to indicate a session establishment policy of the relay service;
  • the sending module 502 is configured to send the URSP information to a remote device through a relay device.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device 500 in this embodiment further includes: a receiving module 503 .
  • the receiving module 503 is configured to receive the information of the remote device
  • the processing module 501 is specifically configured to generate the URSP information according to the information of the remote device.
  • the receiving module 503 is specifically configured to receive the information of the remote device sent by the relay device.
  • the receiving module 503 is specifically configured to receive a non-access stratum NAS message sent by the relay device, where the NAS message includes information of the remote device.
  • the receiving module 503 is specifically configured to acquire the NAS message sent by the relay device from the mobility management function AMF network element.
  • the receiving module 503 is specifically configured to acquire the information of the remote device sent by the relay device from the session management function SMF network element.
  • the network device is the first PCF network element of the public land mobile network PLMN where the relay device is located, or the second PCF network element of the public land mobile network HPLMN where the remote device is located. PCF network element.
  • the receiving module 503 is further configured to acquire the policy information of the remote device from the second PCF network element;
  • the processing module 501 is specifically configured to generate the URSP information according to the policy information of the remote device and the information of the remote device.
  • the processing module 501 is specifically configured to generate the URSP information according to the local configuration information and the information of the remote device .
  • the sending module 502 is specifically configured to send the URSP to the remote device through the first PCF network element information
  • the first PCF network element is configured to send the URSP information to the remote device through the relay device.
  • the sending module 502 is specifically configured to send a NAS message to the relay device, where the NAS message includes the URSP information, and the relay device is configured to send the URSP information to the relay device. forwarded to the remote device.
  • the sending module 502 is specifically configured to send the URSP information to the relay device, and the relay device is configured to generate configuration information according to the URSP information, and send the URSP information to the relay device.
  • the remote device sends the configuration information, where the configuration information is used to indicate the URSP information.
  • the information of the remote device includes at least one of the following items: an identifier of the remote device, an Internet Protocol IP address, and a port number.
  • the URSP information includes at least one of the following: service description information used for the relay service, and user session parameters.
  • the network equipment provided in the embodiments of the present application is used to implement the technical solutions performed by the PCF network elements in the method embodiments shown in FIG. 4 to FIG. 7 .
  • FIG. 10 is a schematic structural diagram of a relay device according to an embodiment of the present application.
  • the relay device 600 provided in this embodiment of the present application includes:
  • a receiving module 601 configured to receive the user equipment routing policy URSP information sent by the policy control function PCF network element, where the URSP information is used to indicate the session establishment policy of the relay service;
  • the sending module 602 is configured to send the URSP information to the remote device.
  • the receiving module 601 is specifically configured to receive a non-access stratum NAS message sent by the PCF network element, where the NAS message includes the URSP information.
  • the sending module 602 is further configured to:
  • the receiving module 601 Before the receiving module 601 receives the URSP information sent by the PCF network element, it sends the information of the remote device to the PCF network element.
  • the sending module 602 is specifically configured to send a NAS message to the PCF network element, where the NAS message includes the information of the remote device.
  • the sending module 602 is specifically configured to send the NAS message to the PCF network element through the mobility management function AMF network element.
  • the sending module 602 is specifically configured to send the information of the remote device to the PCF network element through the session management function SMF network element.
  • FIG. 11 is a schematic structural diagram of a relay device according to an embodiment of the application.
  • the relay device 600 in this embodiment further includes: a processing module 603 .
  • the processing module 603 is configured to generate configuration information according to the URSP information, where the configuration information is used to indicate the URSR information;
  • the sending module 602 is configured to send the configuration information to the remote device.
  • the information of the remote device includes at least one of the following items: an identifier of the remote device, an Internet Protocol IP address, and a port number.
  • the URSP information includes at least one of the following: service description information used for the relay service, and user session parameters.
  • the relay device provided in this embodiment of the present application is used to implement the technical solutions performed by the relay device in the method embodiments shown in FIG. 4 to FIG. 7 .
  • FIG. 12 is a schematic structural diagram of a remote device according to an embodiment of the present application.
  • the remote device 700 provided in this embodiment of the present application includes:
  • a receiving module 701 configured to receive the user equipment routing policy URSP information sent by the policy control function PCF network element, where the URSP information is used to indicate the session establishment policy of the relay service;
  • the processing module 702 is configured to establish a session according to the URSP information.
  • the receiving module 701 is specifically configured to receive the URSP information sent by the PCF network element through a relay device.
  • the receiving module 701 is specifically configured to receive configuration information sent by a relay device, where the configuration information is generated by the relay device according to the URSP information sent by the PCF network element, The configuration information is used to indicate the URSP information.
  • FIG. 13 is a schematic structural diagram of a remote device according to an embodiment of the present application. Based on the embodiment shown in FIG. 12 , as shown in FIG. 13 , the remote device 700 in this embodiment further includes: a sending module 703 .
  • the sending module 703 is configured to send the information of the remote device to the PCF network element through a relay device before the receiving module 701 receives the URSP information sent by the PCF network element.
  • the information of the remote device includes at least one of the following items: an identifier of the remote device, an Internet Protocol IP address, and a port number.
  • the URSP information includes at least one of the following: service description information used for the relay service, and user session parameters.
  • the remote device provided in this embodiment of the present application is configured to execute the technical solutions performed by the remote device in the method embodiments shown in FIG. 4 to FIG. 7 .
  • the implementation principle and technical effect are similar, and details are not repeated here.
  • each module of network equipment, relay equipment or remote equipment is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or it can be physically implemented. Separate. And these modules can all be implemented in the form of software calling through processing elements; they can also all be implemented in hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in hardware.
  • the processing module may be a separately established processing element, or may be integrated into a certain chip of the above-mentioned device to be implemented, in addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the function of the above determined module.
  • the implementation of other modules is similar.
  • all or part of these modules can be integrated together, and can also be implemented independently.
  • the processing element described here may be an integrated circuit with signal processing capability.
  • each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital) signal processor, DSP), or, one or more field programmable gate arrays (field programmable gate array, FPGA), etc.
  • ASIC application specific integrated circuits
  • DSP digital signal processor
  • FPGA field programmable gate array
  • the processing element may be a general-purpose processor, such as a central processing unit (central processing unit, CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.
  • FIG. 14 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present application.
  • the network device 800 in this embodiment may include: a processor 801 , a memory 802 and a communication interface 803 .
  • the memory 802 is used for storing a computer program; the processor 801 is used for executing the computer program stored in the memory 802, so as to implement the method executed by the PCF network element in any of the above method embodiments.
  • the communication interface 803 is used for data communication or signal communication with other devices.
  • the memory 802 may be independent or integrated with the processor 801 .
  • the network device 800 may further include: a bus 804 for connecting the memory 802 and the processor 801 .
  • the processing module 501 in FIG. 8 may be integrated in the processor 801 and implemented, and the sending module 502 may be integrated in the communication interface 803 and implemented.
  • the processing module 501 in FIG. 9 can be integrated in the processor 801 and implemented, and the sending module 502 and the receiving module 503 can be integrated in the communication interface 803 and implemented.
  • the processor 801 may be used to implement the signal processing operation of the network device in the above method embodiment, and the communication interface 803 may be used to implement the signal transceiving operation of the network device in the above method embodiment.
  • the network device provided in this embodiment can be used to execute the method executed by the PCF network element in any of the above method embodiments, and its implementation principle and technical effect are similar, and details are not repeated here.
  • FIG. 15 is a schematic diagram of a hardware structure of a relay device according to an embodiment of the present application.
  • the relay device 900 in this embodiment may include: a processor 901 , a memory 902 and a communication interface 903 .
  • the memory 902 is used for storing a computer program;
  • the processor 901 is used for executing the computer program stored in the memory 902, so as to implement the method executed by the relay device in any of the above method embodiments.
  • the communication interface 903 is used for data communication or signal communication with other devices.
  • the memory 902 may be independent or integrated with the processor 901 .
  • the relay device 900 may further include: a bus 904 for connecting the memory 902 and the processor 901 .
  • the processing module 603 in FIG. 11 can be integrated in the processor 901 and implemented, and the sending module 602 and the receiving module 601 can be integrated in the communication interface 903 and implemented.
  • the processor 901 may be used to implement the signal processing operation of the relay device in the above method embodiment
  • the communication interface 903 may be used to implement the signal transceiving operation of the relay device in the above method embodiment.
  • the relay device provided in this embodiment can be used to execute the method performed by the relay device in any of the above method embodiments, and its implementation principle and technical effect are similar, and details are not repeated here.
  • FIG. 16 is a schematic diagram of a hardware structure of a remote device according to an embodiment of the present application.
  • the remote device 1000 in this embodiment may include: a processor 1001 , a memory 1002 and a communication interface 1003 .
  • the memory 1002 is used to store computer programs; the processor 1001 is used to execute the computer programs stored in the memory 1002 to implement the method performed by the remote device in any of the above method embodiments.
  • the communication interface 1003 is used for data communication or signal communication with other devices.
  • the memory 1002 may be independent or integrated with the processor 1001 .
  • the remote device 1000 may further include: a bus 1004 for connecting the memory 1002 and the processor 1001 .
  • the processing module 702 in FIG. 12 may be integrated in the processor 1001 and implemented, and the receiving module 701 may be integrated in the communication interface 1003 and implemented.
  • the processing module 702 in FIG. 13 can be integrated in the processor 1001 and implemented, and the sending module 703 and the receiving module 701 can be integrated in the communication interface 1003 and implemented.
  • the processor 1001 may be used to implement the signal processing operation of the remote device in the above method embodiment, and the communication interface 1003 may be used to implement the signal transceiving operation of the remote device in the above method embodiment.
  • the remote device provided in this embodiment can be used to execute the method performed by the remote device in any of the above method embodiments, and its implementation principle and technical effect are similar, and details are not described herein again.
  • Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the PCF in any of the foregoing method embodiments
  • the technical solution of the network element is not limited to, but not limited to, but not limited to, but not limited to, but not limited to,
  • Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement any of the foregoing method embodiments. Following the technical scheme of the equipment.
  • Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the remote control in any of the foregoing method embodiments.
  • technical solutions for end devices are provided.
  • the embodiments of the present application further provide a program, which, when the program is executed by the processor, is used to execute the technical solution of the PCF network element in any of the foregoing method embodiments.
  • the embodiments of the present application further provide a program, which, when the program is executed by the processor, is used to execute the technical solution of the relay device in any of the foregoing method embodiments.
  • the embodiments of the present application further provide a program, which, when the program is executed by the processor, is used to execute the technical solution of the remote device in any of the foregoing method embodiments.
  • the embodiments of the present application further provide a computer program product, including program instructions, where the program instructions are used to implement the technical solution of the PCF network element in any of the foregoing method embodiments.
  • Embodiments of the present application further provide a chip, including: a processing module and a communication interface, where the processing module can execute the technical solutions of the PCF network element in the foregoing method embodiments.
  • the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the PCF network element.
  • a storage module eg, memory
  • the storage module is used for storing instructions
  • the processing module is used for executing the instructions stored in the storage module
  • the execution of the instructions stored in the storage module causes the processing module to execute the PCF network element.
  • Embodiments of the present application further provide a computer program product, including program instructions, where the program instructions are used to implement the technical solution of the relay device in any of the foregoing method embodiments.
  • Embodiments of the present application further provide a chip, including: a processing module and a communication interface, where the processing module can execute the technical solutions of the relay device in the foregoing method embodiments.
  • the chip also includes a storage module (eg, memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module makes the processing module execute the relay device.
  • a storage module eg, memory
  • Embodiments of the present application further provide a computer program product, including program instructions, where the program instructions are used to implement the technical solution of the remote device in any of the foregoing method embodiments.
  • Embodiments of the present application further provide a chip, including: a processing module and a communication interface, where the processing module can execute the technical solutions of the remote device in the foregoing method embodiments.
  • this chip also includes a storage module (such as memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module makes the processing module execute the remote device. technical solution.
  • At least two means two or more, and "a plurality” means two or more.
  • “And/or”, which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects before and after are an “or” relationship; in the formula, the character “/” indicates that the related objects are a “division” relationship.
  • “At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one item (number) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple Piece.

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Abstract

本申请实施例提供一种数据传输方法、设备及存储介质，该方法包括：远端设备通过中继设备向核心网的PCF网元发送远端设备的信息，PCF网元根据远端设备的信息生成URSP信息，PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。

Description

数据传输方法、设备及存储介质 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种数据传输方法、设备及存储介质。
背景技术
在最新的3GPP协议中，定义了用户设备路由选择策略(UE route selection policy,URSP)的概念，用来确定检测到的应用程序是否可以与已建立的协议数据单元PDU会话相关联，是否可以被卸载到PDU会话之外的非3GPP接入，或者是否可以触发建立新的PDU会话。
现阶段，用户设备从核心网的策略控制功能PCF网元中获取设备需要遵循的URSP信息并提供给用户设备，用户设备可以根据URSP信息将应用要发送的数据进行路由。
发明内容
本申请实施例提供一种数据传输方法、设备及存储介质，实现远端设备通过中继设备获取网络配置的会话建立规则，建立中继业务会话的技术方案。
第一方面，本申请实施例提供一种数据传输方法，包括：策略控制功能PCF网元生成用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；所述PCF网元通过中继设备向远端设备发送所述URSP信息。
第二方面，本申请实施例提供一种数据传输方法，包括：中继设备接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；所述中继设备向远端设备发送所述URSP信息。
第三方面，本申请实施例提供一种数据传输方法，包括：远端设备接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；所述远端设备根据所述URSP信息建立会话。
第四方面，本申请实施例提供一种网络设备，包括：处理模块，用于生成用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；发送模块，用于通过中继设备向远端设备发送所述URSP信息。
第五方面，本申请实施例提供一种中继设备，包括：接收模块，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；发送模块，用于向远端设备发送所述URSP信息。
第六方面，本申请实施例提供一种远端设备，包括：接收模块，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；处理模块，用于根据所述URSP信息建立会话。
第七方面，本申请实施例提供一种网络设备，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行第一方面中任一项所述的方法。
第八方面，本申请实施例提供一种中继设备，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行第二方面中任一项所述的方法。
第九方面，本申请实施例提供一种远端设备，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行第三方面中任一项所述的方法。
第十方面，本申请实施例提供一种存储介质，所述存储介质包括计算机程序，所述计算机程序用于实现如第一方面中任一项所述的方法。
第十一方面，本申请实施例提供一种存储介质，所述存储介质包括计算机程序，所述计算机程序用于实现如第二方面中任一项所述的方法。
第十二方面，本申请实施例提供一种存储介质，所述存储介质包括计算机程序，所述计算机程序用于实现如第三方面中任一项所述的方法。
本申请实施例提供一种数据传输方法、设备及存储介质，该方法包括：远端设备通过中继设备向核心网的PCF网元发送远端设备的信息，PCF网元根据远端设备的信息生成URSP信息，PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。
附图说明
图1为本申请实施例提供的一种网络架构示意图；
图2为本申请实施例提供的一种场景示意图；
图3为本申请实施例提供的一种场景示意图；
图4为本申请实施例提供的一种数据传输方法的交互示意图；
图5为本申请实施例提供的一种数据传输方法的交互示意图；
图6为本申请实施例提供的一种数据传输方法的交互示意图；
图7为本申请实施例提供的一种数据传输方法的交互示意图；
图8为本申请实施例提供的一种网络设备的结构示意图；
图9为本申请实施例提供的一种网络设备的结构示意图；
图10为本申请实施例提供的一种中继设备的结构示意图；
图11为本申请实施例提供的一种中继设备的结构示意图；
图12为本申请实施例提供的一种远端设备的结构示意图；
图13为本申请实施例提供的一种远端设备的结构示意图；
图14为本申请实施例提供的一种网络设备的硬件结构示意图；
图15为本申请实施例提供的一种中继设备的硬件结构示意图；
图16为本申请实施例提供的一种远端设备的硬件结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的说明书、权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了更好地理解本申请实施例提供的数据传输方法，下面对本申请实施例涉及的网络架构进行描述。
图1为本申请实施例提供的一种网络架构示意图。如图1所示，3GPP标准组发布的5G网络架构包括：终端(user equipment，UE)、支持3GPP技术的接入网(包括radio access network，RAN或access network，AN)、用户面功能(user plane function，UPF)网元、接入和移动性管理功能(access and mobility management function，AMF)网元、会话管理 功能(session management function，SMF)网元、策略控制功能(policy control function，PCF)网元、应用功能(application function，AF)和数据网络(data network，DN)。
本领域技术人员可以理解，图1中示出的5G网络架构并不构成对该5G网络架构的限定，具体实现时，该5G网络架构可以包括比图示更多或更少的网元，或者组合某些网元等。应理解，图1中以(R)AN的方式表征AN或RAN。
本申请实施例中的终端可以为用户设备(user equipment，UE)、手持终端、笔记本电脑、用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication，MTC)终端、具有无线通信功能的手持设备、计算设备、连接到无线调制解调器的处理设备、无人机、车载设备、可穿戴设备、物联网中的终端、虚拟现实设备、未来5G网络中的终端设备、未来演进的公共陆地移动网络(public land mobile network，PLMN)中的终端等。
本申请实施例中的接入网设备是终端通过无线方式接入到该网络架构中的接入设备，主要负责空口侧的无线资源管理、服务质量(quality of service，QoS)管理、数据压缩和加密等。例如：基站NodeB、演进型基站eNodeB、5G移动通信系统或新一代无线(new radio，NR)通信系统中的基站、未来移动通信系统中的基站等。
UPF网元、AMF网元、SMF网元、PCF网元为3GPP核心网络的网元(简称：核心网网元)。UPF网元可以称为用户面功能网元，主要负责用户数据的传输，其他网元可以称为控制面功能网元，主要负责认证、鉴权、注册管理、会话管理、移动性管理以及策略控制等，以保障用户数据可靠稳定的传输。
UPF网元可以用于转发和接收终端的数据。例如，UPF网元可以从数据网络接收业务的数据，通过接入网设备传输给终端；UPF网元还可以通过接入网设备从终端接收用户数据，转发到数据网络。其中，UPF网元为终端分配和调度的传输资源是由SMF网元管理控制的。终端与UPF网元之间的承载可以包括：UPF网元和接入网设备之间的用户面连接，以及在接入网设备和终端之间建立信道。其中，用户面连接为可以在UPF网元和接入网设备之间建立传输数据的服务质量(quality of service，QoS)流(flow)。
AMF网元可以用于对终端接入核心网络进行管理，例如：终端的位置更新、注册网络、接入控制、终端的移动性管理、终端的附着与去附着等。AMF网元还可以在为终端的会话提供服务的情况下，为该会话提供控制面的存储资源，以存储会话标识、与会话标识关联的SMF网元标识等。
SMF网元可以用于为终端选择用户面网元、为终端重定向用户面网元、为终端分配因特网协议(internet protocol，IP)地址，建立终端与UPF网元之间的承载(也可以称为会话)、会话的修改、释放以及QoS控制。
PCF网元用于向AMF网元、SMF网元提供策略，如QoS策略、切片选择策略等。
AF网元用于与3GPP核心网网元交互支持应用影响数据的路由，访问网络暴露功能，与PCF网元之间交互以进行策略控制等。
DN可以为如IP多媒体服务(IP multi-media service,IMS)网络、互联网等为用户提供数据服务。在DN中可以有多种应用服务器(application server，AS)，提供不同的应用业务，比如运营商业务，互联网接入或者第三方业务等，AS可以实现AF的功能。
在无线通信中，可采用邻近业务(proximity services，ProSe)技术使小区覆盖范围外的用户设备UE通过小区覆盖范围内的UE与基站进行通信，提高数据的传输效率。其中，小区覆盖范围外的UE被称为远端UE，小区覆盖范围内的UE被称为中继UE(relay UE)， 如图1所示。远端UE利用ProSe技术中的发现过程，确定中继UE，并与中继UE建立连接与通信，远端UE通过中继UE接入网络，中继UE用于传输远端UE与网络之间的数据。
图2为本申请实施例提供的一种场景示意图，如图2所示，远端UE通过中继UE与中继设备所在的公共陆地移动网络PLMN2通信连接。PLMN2中的策略控制功能网元PCF2需要从远端UE的归属地公共陆地移动网络HPLMN中的PCF1获取远端UE的策略信息，并根据该策略信息生成用户设备路由选择策略URSP信息。远端UE通过中继UE获取URSP信息，从而建立PDU会话。
图3为本申请实施例提供的一种场景示意图，如图3所示，远端UE通过中继UE与中继设备所在的PLMN1通信连接，与图2不同的是，中继设备所在的PLMN1即远端UE的HPLMN。PLMN1中的PCF1直接生成URSP信息，并通过中继UE向远端UE发送URSP信息，远端UE根据URSP信息建立PDU会话。
基于上述任一场景，本申请实施例提供一种数据传输方法给出了产生并配置远端设备的会话建立规则，实现了远端设备通过中继设备建立中继业务会话的技术方案。该方法包括：远端设备与中继设备建立连接后，远端设备通过中继设备向网络侧发送远端设备的信息，网络侧根据远端设备的信息生成URSP信息，并通过中继设备向远端设备发送URSP信息，其中，URSP信息用于指示中继业务的会话建立策略。远端设备根据接收到的URSP信息建立PDU会话。通过本申请提供的上述方案，使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，远端设备可以根据实际业务需求建立PDU会话，提高了数据传输效率。
下面，通过具体实施例对本申请所示的技术方案进行详细说明。需要说明的是，下面几个实施例可以单独存在也可以相互结合。对于相同或相似的内容，例如，术语或名词的解释说明，及步骤的解释说明等，在不同的实施例中可以相互参考，不再重复说明。
结合图4至图7实施例所示的数据传输方法，对通信系统中位于网络覆盖范围之外的远端设备如何进行中继业务会话建立的技术方案进行详细描述。
图4为本申请实施例提供的一种数据传输方法的交互示意图。如图4所示，本实施例提供的方法包括如下步骤：
步骤101、远端设备向中继设备发送远端设备的信息。
本实施例中，远端设备向中继设备发送的远端设备的信息包括以下至少一项：
远端设备的标识、互联网协议IP地址、端口号。
可选的，远端设备的标识可以是SUPI(SUbscription Permanent Identifier)，SUPI是5G网络中用户的唯一永久身份标志，类似于LTE(Long Term Evolution，长期演进)网络中的国际移动用户识别码(International Mobile Subscriber Identity，IMSI)。
步骤102、中继设备向PCF网元发送远端设备的信息。
可选的，在一种可能的实施方式中，中继设备向PCF网元发送远端设备的信息，具体包括：中继设备向PCF网元发送非连接层NAS消息，NAS消息中包括远端设备的信息。
步骤103、PCF网元根据远端设备的信息生成URSP信息。
本实施例中，PCF网元生成的URSP信息用于指示远端设备中继业务的会话建立策略。
在一种可能的实施方式中，PCF网元为远端设备归属地公共陆地移动网络HPLMN的PCF网元。PCF网元根据远端设备的信息生成URSP信息，具体包括：PCF网元根据本地配置信息以及远端设备的信息，生成UPSP信息。其中，本地配置信息包括远端设备的策略信息。
在另一种可能的实施方式中，PCF网元为中继设备所在公共陆地移动网络PLMN的PCF网元，中继设备所在PLMN与远端设备的HPLMN为不同的网络。PCF网元根据远端设备的信息生成URSP信息，具体包括：PCF网元根据远端设备的策略信息以及远端设备 的信息，生成URSP信息，其中，远端设备的策略信息是PCF网元从远端设备的HPLMN的PCF网元处获取的。
可选的，在一种可能的实施方式中，URSP信息包括以下至少一项：
用于中继业务的会话描述信息，用户会话参数。
其中，用于中继业务的会话描述信息包括应用标识，IP地址信息，媒体访问控制地址(Media Access Control Address，MAC)信息，业务类型信息等。业务类型信息包括中继业务类型信息。
其中，用户会话参数包括数据网络名称(data network name，DNN)信息，S-NSSAI(Single Network Slice Selection Assistance Information)信息，会话类型信息，业务路径信息，中继方式信息等。中继方式信息包括层3中继，层2中继，N3IWF(Non-3GPP InterWorking Function)中继方式等。
步骤104、PCF网元向中继设备发送URSP信息。
可选的，在一种可能的实施方式中，PCF网元向中继设备发送URSP信息，具体包括：PCF网元向中继设备发送NAS消息，NAS消息包括URSP信息。
步骤105、中继设备向远端设备发送URSP信息。
可选的，在一种可能的实施方式中，中继设备向远端设备发送URSP信息，具体包括：中继设备向远端设备发送PC5-S消息，PC5-S消息包括URSP信息。
可选的，在一种可能的实施方式中，中继设备接收PCF网元发送的URSP信息，URSP信息包含在透明容器内，中继设备不需要解析该透明容器中的内容，直接向远端设备转发URSP信息。
可选的，在一种可能的实施方式中，中继设备接收PCF网元发送的URSP信息，URSP信息包含在透明容器内，中继设备读取该透明容器中的内容，根据URSP信息生成配置信息，向远端设备发送配置信息，该配置信息用于指示URSP信息。
步骤106、远端设备根据URSP信息建立PDU会话。
本实施例提供的数据传输方法，远端设备通过中继设备向核心网的PCF网元发送远端设备的信息，PCF网元根据远端设备的信息生成URSP信息，PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。
图5为本申请实施例提供的一种数据传输方法的交互示意图。与图4不同的是，本实施例的中继设备通过核心网的AMF网元向PCF网元传输数据。如图5所示，本实施例提供的方法包括如下步骤：
步骤201、远端设备向中继设备发送远端设备的信息。
步骤202、中继设备向AMF网元发送远端设备的信息。
可选的，在一种可能的实施方式中，中继设备向AMF网元发送远端设备的信息，具体包括：中继设备向AMF网元发送NAS消息，NAS消息包括远端设备的信息。
步骤203、AMF网元向PCF网元发送远端设备的信息。
可选的，在一种可能的实施方式中，AMF网元向PCF网元发送NAS消息，NAS消息包括远端设备的信息。
步骤204、PCF网元根据远端设备的信息生成URSP信息。
步骤205、PCF网元向中继设备发送URSP信息。
步骤206、中继设备向远端设备发送URSP信息。
步骤207、远端设备根据URSP信息建立PDU会话。
本实施例的步骤201、204至207同上述实施例的步骤101、103至106，具体可参见上述实施例，此处不再赘述。
本实施例提供的数据传输方法，远端设备通过中继设备向核心网的PCF网元发送远端设备的信息，其中，中继设备是通过AMF网元向PCF网元发送远端设备的信息，PCF网元根据远端设备的信息生成URSP信息，PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。
图6为本申请实施例提供的一种数据传输方法的交互示意图。与图4不同的是，本实施例的中继设备通过核心网的SMF网元以及AMF网元，向PCF网元传输数据。如图6所示，本实施例提供的方法包括如下步骤：
步骤301、远端设备向中继设备发送远端设备的信息。
步骤302、中继设备向AMF网元发送远端设备的信息。
可选的，在一种可能的实施方式中，中继设备向AMF网元发送远端设备的信息，具体包括：中继设备向AMF网元发送NAS消息，NAS消息包括远端设备的信息。
步骤303、AMF网元向SMF网元发送远端设备的信息。
可选的，在一种可能的实施方式中，AMF网元在接收到中继设备发送的NAS消息之后，读取NAS消息中的远端设备的信息，将远端设备的信息发送给SMF网元。
步骤304、SMF网元向PCF网元发送远端设备的信息。
步骤305、PCF网元根据远端设备的信息生成URSP信息。
步骤306、PCF网元向中继设备发送URSP信息。
步骤307、中继设备向远端设备发送URSP信息。
步骤308、远端设备根据URSP信息建立PDU会话。
本实施例的步骤301、305至308同上述实施例的步骤101、103至106，具体可参见上述实施例，此处不再赘述。
本实施例提供的数据传输方法，远端设备通过中继设备向核心网的PCF网元发送远端设备的信息，其中，中继设备将远端设备的信息发送给核心网的AMF网元，再由AMF网元将远端设备的信息发送给核心网的SMF网元，最后由SMF网元向PCF网元发送远端设备的信息。PCF网元根据远端设备的信息生成URSP信息，PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。
图7为本申请实施例提供的一种数据传输方法的交互示意图。与图4不同的是，本实施例的PCF网元包括第一PCF网元和第二PCF网元。其中，第一PCF网元为中继设备所在PLMN的PCF网元，第二PCF网元为远端设备的HPLMN的PCF网元，中继设备所在PLMN与远端设备的HPLMN为不同的网络。本实施例提供的数据传输方法可应用于图2所示的场景中，第一PCF网元对应图2中的PCF2，第二PCF网元对应图2中的PCF1。
如图7所示，本实施例提供的方法包括如下步骤：
步骤401、远端设备向中继设备发送远端设备的信息。
步骤402、中继设备向第一PCF网元发送远端设备的信息。
步骤403、第一PCF网元从第二PCF网元获取远端设备的策略信息。
步骤404、第一PCF网元根据远端设备的策略信息以及远端设备的信息，生成URSP信息。
步骤405、第一PCF网元向中继设备发送URSP信息。
步骤406、中继设备向远端设备发送URSP信息。
步骤407、远端设备根据URSP信息建立PDU会话。
本实施例提供的数据传输方法，远端设备通过中继设备向中继设备所在网络的第一PCF网元发送远端设备的信息，第一PCF网元从远端设备的HPLMN的第二PCF网元获取远端设备的策略信息，第一PCF网元根据远端设备的策略信息以及远端设备的信息，生成URSP信息，第一PCF网元通过中继设备向远端设备发送URSP信息，以使远端设备根据URSP信息建立中继业务的PDU会话。上述方法使得位于网络覆盖范围之外的远端设备通过中继设备连接中继设备所在网络，并根据网络下发的URSP信息建立PDU会话，提高了数据传输效率。
上文中详细描述了本申请实施例提供的数据传输方法，下面将描述本申请实施例提供的网络设备、中继设备以及远端设备。
图8为本申请实施例提供的一种网络设备的结构示意图。如图8所示，本申请实施例提供的网络设备500，包括：
处理模块501，用于生成用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
发送模块502，用于通过中继设备向远端设备发送所述URSP信息。
图9为本申请实施例提供的一种网络设备的结构示意图。在图8所示实施例的基础上，如图9所示，本实施例的网络设备500，还包括：接收模块503。
所述接收模块503，用于接收所述远端设备的信息；
所述处理模块501，具体用于根据所述远端设备的信息生成所述URSP信息。
在一种可能的实施方式中，所述接收模块503，具体用于接收所述中继设备发送的所述远端设备的信息。
在一种可能的实施方式中，所述接收模块503，具体用于接收所述中继设备发送的非接入层NAS消息，所述NAS消息包括所述远端设备的信息。
在一种可能的实施方式中，所述接收模块503，具体用于从移动性管理功能AMF网元获取所述中继设备发送的所述NAS消息。
在一种可能的实施方式中，所述接收模块503，具体用于从会话管理功能SMF网元获取所述中继设备发送的所述远端设备的信息。
在一种可能的实施方式中，所述网络设备为所述中继设备所在公共陆地移动网络PLMN的第一PCF网元，或者，所述远端设备的归属地公共陆地移动网络HPLMN的第二PCF网元。
在一种可能的实施方式中，若所述网络设备为所述第一PCF网元，所述接收模块503，还用于从所述第二PCF网元获取所述远端设备的策略信息；
相应的，所述处理模块501，具体用于根据所述远端设备的策略信息以及所述远端设备的信息，生成所述URSP信息。
在一种可能的实施方式中，若所述网络设备为所述第二PCF网元，所述处理模块501，具体用于根据本地配置信息以及所述远端设备的信息，生成所述URSP信息。
在一种可能的实施方式中，若所述网络设备为所述第二PCF网元，所述发送模块502，具体用于通过所述第一PCF网元向所述远端设备发送所述URSP信息，所述第一PCF网元用于通过所述中继设备向所述远端设备发送所述URSP信息。
在一种可能的实施方式中，所述发送模块502，具体用于向所述中继设备发送NAS消息，所述NAS消息包括所述URSP信息，所述中继设备用于将所述URSP信息转发给所述远端设备。
在一种可能的实施方式中，所述发送模块502，具体用于向所述中继设备发送所述URSP信息，所述中继设备用于根据所述URSP信息生成配置信息，并向所述远端设备发送所述配置信息，所述配置信息用于指示所述URSP信息。
可选的，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网 协议IP地址、端口号。
可选的，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
本申请实施例提供的网络设备，用于执行前述图4至图7所示方法实施例中的PCF网元执行的技术方案，其实现原理和技术效果类似，在此不再赘述。
图10为本申请实施例提供的一种中继设备的结构示意图。如图10所示，本申请实施例提供的中继设备600，包括：
接收模块601，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
发送模块602，用于向远端设备发送所述URSP信息。
在一种可能的实施方式中，所述接收模块601，具体用于接收所述PCF网元发送的非接入层NAS消息，所述NAS消息包括所述URSP信息。
在一种可能的实施方式中，所述发送模块602，还用于：
在所述接收模块601接收所述PCF网元发送的所述URSP信息之前，向所述PCF网元发送所述远端设备的信息。
在一种可能的实施方式中，所述发送模块602，具体用于向所述PCF网元发送NAS消息，所述NAS消息包括所述远端设备的信息。
在一种可能的实施方式中，所述发送模块602，具体用于通过移动性管理功能AMF网元，向所述PCF网元发送所述NAS消息。
在一种可能的实施方式中，所述发送模块602，具体用于通过会话管理功能SMF网元，向所述PCF网元发送所述远端设备的信息。
图11为本申请实施例提供的一种中继设备的结构示意图。在图10所示实施例的基础上，如图11所示，本实施例的中继设备600，还包括：处理模块603。
所述处理模块603，用于根据所述URSP信息生成配置信息，所述配置信息用于指示所述URSR信息；
所述发送模块602，用于向所述远端设备发送所述配置信息。
可选的，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
可选的，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
本申请实施例提供的中继设备，用于执行前述图4至图7所示方法实施例中的中继设备执行的技术方案，其实现原理和技术效果类似，在此不再赘述。
图12为本申请实施例提供的一种远端设备的结构示意图。如图12所示，本申请实施例提供的远端设备700，包括：
接收模块701，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
处理模块702，用于根据所述URSP信息建立会话。
在一种可能的实施方式中，所述接收模块701，具体用于通过中继设备接收所述PCF网元发送的URSP信息。
在一种可能的实施方式中，所述接收模块701，具体用于接收中继设备发送的配置信息，所述配置信息是所述中继设备根据所述PCF网元发送的URSP信息生成的，所述配置信息用于指示所述URSP信息。
图13为本申请实施例提供的一种远端设备的结构示意图。在图12所示实施例的基础上，如图13所示，本实施例的远端设备700，还包括：发送模块703。
所述发送模块703，用于在接收模块701接收所述PCF网元发送的URSP信息之 前，通过中继设备向所述PCF网元发送所述远端设备的信息。
可选的，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
可选的，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
本申请实施例提供的远端设备，用于执行前述图4至图7所示方法实施例中的远端设备执行的技术方案，其实现原理和技术效果类似，在此不再赘述。
需要说明的是，应理解以上网络设备、中继设备或者远端设备的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，处理模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘solid state disk(SSD))等。
图14为本申请实施例提供的一种网络设备的硬件结构示意图。如图14所示，本实施例的网络设备800，可以包括：处理器801、存储器802和通信接口803。其中，存储器802，用于存储计算机程序；处理器801，用于执行存储器802存储的计算机程序，以实现上述任一方法实施例中PCF网元所执行的方法。通信接口803，用于与其他设备进行数据通信或者信号通信。
可选的，存储器802既可以是独立的，也可以跟处理器801集成在一起。当所述存储器802是独立于处理器801之外的器件时，所述网络设备800还可以包括：总线804，用于连接所述存储器802和处理器801。
在一种可能的实施方式中，图8中的处理模块501可以集成在处理器801中实现，发送模块502可以集成在通信接口803中实现。图9中的处理模块501可以集成在处理器801中实现，发送模块502和接收模块503可以集成在通信接口803中实现。在一种可能的实施方式中，处理器801可用于实现上述方法实施例中网络设备的信号处理操作，通信接口803可用于实现上述方法实施例中网络设备的信号收发操作。
本实施例提供的网络设备，可用于执行上述任一方法实施例中PCF网元所执行的方法，其实现原理和技术效果类似，此处不再赘述。
图15为本申请实施例提供的一种中继设备的硬件结构示意图。如图15所示，本实施例的中继设备900，可以包括：处理器901、存储器902和通信接口903。其中，存储器902，用于存储计算机程序；处理器901，用于执行存储器902存储的计算机程序，以实现上述任一方法实施例中中继设备所执行的方法。通信接口903，用于与其他设备进行数据通信或者信号通信。
可选的，存储器902既可以是独立的，也可以跟处理器901集成在一起。当所述存储器902是独立于处理器901之外的器件时，所述中继设备900还可以包括：总线904，用于连接所述存储器902和处理器901。
在一种可能的实施方式中，图11中的处理模块603可以集成在处理器901中实现，发送模块602和接收模块601可以集成在通信接口903中实现。在一种可能的实施方式中，处理器901可用于实现上述方法实施例中中继设备的信号处理操作，通信接口903可用于实现上述方法实施例中中继设备的信号收发操作。
本实施例提供的中继设备，可用于执行上述任一方法实施例中中继设备所执行的方法，其实现原理和技术效果类似，此处不再赘述。
图16为本申请实施例提供的一种远端设备的硬件结构示意图。如图16所示，本实施例的远端设备1000，可以包括：处理器1001、存储器1002和通信接口1003。其中，存储器1002，用于存储计算机程序；处理器1001，用于执行存储器1002存储的计算机程序，以实现上述任一方法实施例中远端设备所执行的方法。通信接口1003，用于与其他设备进行数据通信或者信号通信。
可选的，存储器1002既可以是独立的，也可以跟处理器1001集成在一起。当所述存储器1002是独立于处理器1001之外的器件时，所述远端设备1000还可以包括：总线1004，用于连接所述存储器1002和处理器1001。
在一种可能的实施方式中，图12中的处理模块702可以集成在处理器1001中实现，接收模块701可以集成在通信接口1003中实现。图13中的处理模块702可以集成在处理器1001中实现，发送模块703和接收模块701可以集成在通信接口1003中实现。在一种可能的实施方式中，处理器1001可用于实现上述方法实施例中远端设备的信号处理操作，通信接口1003可用于实现上述方法实施例中远端设备的信号收发操作。
本实施例提供的远端设备，可用于执行上述任一方法实施例中远端设备所执行的方法，其实现原理和技术效果类似，此处不再赘述。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现前述任一方法实施例中PCF网元的技术方案。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现前述任一方法实施例中中继设备的技术方案。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当所述计算机执行指令被处理器执行时用于实现前述任一方法实 施例中远端设备的技术方案。
本申请实施例还提供一种程序，当该程序被处理器执行时，用于执行前述任一方法实施例中PCF网元的技术方案。
本申请实施例还提供一种程序，当该程序被处理器执行时，用于执行前述任一方法实施例中中继设备的技术方案。
本申请实施例还提供一种程序，当该程序被处理器执行时，用于执行前述任一方法实施例中远端设备的技术方案。
本申请实施例还提供一种计算机程序产品，包括程序指令，程序指令用于实现前述任一方法实施例中PCF网元的技术方案。
本申请实施例还提供了一种芯片，包括：处理模块与通信接口，该处理模块能执行前述方法实施例中PCF网元的技术方案。进一步地，该芯片还包括存储模块(如，存储器)，存储模块用于存储指令，处理模块用于执行存储模块存储的指令，并且对存储模块中存储的指令的执行使得处理模块执行PCF网元的技术方案。
本申请实施例还提供一种计算机程序产品，包括程序指令，程序指令用于实现前述任一方法实施例中中继设备的技术方案。
本申请实施例还提供了一种芯片，包括：处理模块与通信接口，该处理模块能执行前述方法实施例中中继设备的技术方案。进一步地，该芯片还包括存储模块(如，存储器)，存储模块用于存储指令，处理模块用于执行存储模块存储的指令，并且对存储模块中存储的指令的执行使得处理模块执行中继设备的技术方案。
本申请实施例还提供一种计算机程序产品，包括程序指令，程序指令用于实现前述任一方法实施例中远端设备的技术方案。
本申请实施例还提供了一种芯片，包括：处理模块与通信接口，该处理模块能执行前述方法实施例中远端设备的技术方案。进一步地，该芯片还包括存储模块(如，存储器)，存储模块用于存储指令，处理模块用于执行存储模块存储的指令，并且对存储模块中存储的指令的执行使得处理模块执行远端设备的技术方案。
本申请中，“至少两个”是指两个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中，a，b，c可以是单个，也可以是多个。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，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，而不应对本申请的实施例的实施过程构成任何限定。

Claims (62)

  1. 一种数据传输方法，其特征在于，包括：
    策略控制功能PCF网元生成用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    所述PCF网元通过中继设备向远端设备发送所述URSP信息。
  2. 根据权利要求1所述的方法，其特征在于，所述PCF网元生成所述URSP信息，包括：
    所述PCF网元接收所述远端设备的信息；
    所述PCF网元根据所述远端设备的信息生成所述URSP信息。
  3. 根据权利要求2所述的方法，其特征在于，
    所述PCF网元接收所述远端设备的信息，包括：
    所述PCF网元接收所述中继设备发送的所述远端设备的信息。
  4. 根据权利要求2或3所述的方法，其特征在于，
    所述PCF网元接收远端设备的信息，包括：
    所述PCF网元接收所述中继设备发送的非接入层NAS消息，所述NAS消息包括所述远端设备的信息。
  5. 根据权利要求4所述的方法，其特征在于，所述PCF网元接收所述中继设备发送的NAS消息，包括：
    所述PCF网元从移动性管理功能AMF网元获取所述中继设备发送的所述NAS消息。
  6. 根据权利要求2或3所述的方法，其特征在于，所述PCF网元接收所述远端设备的信息，包括：
    所述PCF网元从会话管理功能SMF网元获取所述中继设备发送的所述远端设备的信息。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，所述PCF网元为所述中继设备所在公共陆地移动网络PLMN的第一PCF网元，或者，所述远端设备的归属地公共陆地移动网络HPLMN的第二PCF网元。
  8. 根据权利要求7所述的方法，其特征在于，若所述PCF网元为所述第一PCF网元，所述方法还包括：
    所述第一PCF网元从所述第二PCF网元获取所述远端设备的策略信息；
    相应的，所述PCF网元生成所述URSP信息，包括：
    所述第一PCF网元根据所述远端设备的策略信息以及所述远端设备的信息，生成所述URSP信息。
  9. 根据权利要求7所述的方法，其特征在于，若所述PCF网元为所述第二PCF网元，所述PCF网元生成所述URSP信息，包括：
    所述第二PCF网元根据本地配置信息以及所述远端设备的信息，生成所述URSP信息。
  10. 根据权利要求7所述的方法，其特征在于，若所述PCF网元为所述第二PCF网元，所述PCF网元通过中继设备向远端设备发送所述URSP信息，包括：
    所述第二PCF网元通过所述第一PCF网元向所述远端设备发送所述URSP信息，所述第一PCF网元用于通过所述中继设备向所述远端设备发送所述URSP信息。
  11. 根据权利要求1-10中任一项所述的方法，其特征在于，所述PCF网元通过中继设备向远端设备发送所述URSP信息，包括：
    所述PCF网元向所述中继设备发送NAS消息，所述NAS消息包括所述URSP信息，所述中继设备用于将所述URSP信息转发给所述远端设备。
  12. 根据权利要求1-10中任一项所述的方法，其特征在于，所述PCF网元通过中继设备向远端设备发送所述URSP信息，包括：
    所述PCF网元向所述中继设备发送所述URSP信息，所述中继设备用于根据所述URSP信息生成配置信息，并向所述远端设备发送所述配置信息，所述配置信息用于指示所述URSP信息。
  13. 根据权利要求1-12中任一项所述的方法，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  14. 根据权利要求1-12中任一项所述的方法，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  15. 一种数据传输方法，其特征在于，包括：
    中继设备接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    所述中继设备向远端设备发送所述URSP信息。
  16. 根据权利要求15所述的方法，其特征在于，所述中继设备接收所述PCF网元发送的所述URSP信息，包括：
    所述中继设备接收所述PCF网元发送的非接入层NAS消息，所述NAS消息包括所述URSP信息。
  17. 根据权利要求15所述的方法，其特征在于，所述中继设备接收所述PCF网元发送的所述URSP信息之前，所述方法还包括：
    所述中继设备向所述PCF网元发送所述远端设备的信息。
  18. 根据权利要求17所述的方法，其特征在于，所述中继设备向所述PCF网元发送所述远端设备的信息，包括：
    所述中继设备向所述PCF网元发送NAS消息，所述NAS消息包括所述远端设备的信息。
  19. 根据权利要求18所述的方法，其特征在于，所述中继设备向所述PCF网元发送NAS消息，包括：
    所述中继设备通过移动性管理功能AMF网元，向所述PCF网元发送所述NAS消息。
  20. 根据权利要求17所述的方法，其特征在于，所述中继设备向所述PCF网元发送所述远端设备的信息，包括：
    所述中继设备通过会话管理功能SMF网元，向所述PCF网元发送所述远端设备的信息。
  21. 根据权利要求15-20中任一项所述的方法，其特征在于，所述中继设备向远端设备发送所述URSP信息，包括：
    所述中继设备根据所述URSP信息生成配置信息，所述配置信息用于指示所述URSR信息；
    所述中继设备向所述远端设备发送所述配置信息。
  22. 根据权利要求15-21中任一项所述的方法，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  23. 根据权利要求15-21中任一项所述的方法，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  24. 一种数据传输方法，其特征在于，包括：
    远端设备接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    所述远端设备根据所述URSP信息建立会话。
  25. 根据权利要求24所述的方法，其特征在于，所述远端设备接收所述PCF网元发送的URSP信息，包括：
    所述远端设备通过中继设备接收所述PCF网元发送的URSP信息。
  26. 根据权利要求24或25所述的方法，其特征在于，所述远端设备接收所述PCF网元发送的URSP信息，包括：
    所述远端设备接收中继设备发送的配置信息，所述配置信息是所述中继设备根据所述PCF网元发送的URSP信息生成的，所述配置信息用于指示所述URSP信息。
  27. 根据权利要求24-26中任一项所述的方法，其特征在于，所述远端设备接收所述PCF网元发送的URSP信息之前，所述方法还包括：
    所述远端设备通过中继设备向所述PCF网元发送所述远端设备的信息。
  28. 根据权利要求24-27中任一项所述的方法，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  29. 根据权利要求24-27中任一项所述的方法，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  30. 一种网络设备，其特征在于，包括：
    处理模块，用于生成用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    发送模块，用于通过中继设备向远端设备发送所述URSP信息。
  31. 根据权利要求30所述的网络设备，其特征在于，所述网络设备还包括：接收模块；所述接收模块，用于接收所述远端设备的信息；
    所述处理模块，具体用于根据所述远端设备的信息生成所述URSP信息。
  32. 根据权利要求31所述的网络设备，其特征在于，
    所述接收模块，具体用于接收所述中继设备发送的所述远端设备的信息。
  33. 根据权利要求31或32所述的网络设备，其特征在于，
    所述接收模块，具体用于接收所述中继设备发送的非接入层NAS消息，所述NAS消息包括所述远端设备的信息。
  34. 根据权利要求33所述的网络设备，其特征在于，所述接收模块，具体用于从移动性管理功能AMF网元获取所述中继设备发送的所述NAS消息。
  35. 根据权利要求31或32所述的网络设备，其特征在于，所述接收模块，具体用于从会话管理功能SMF网元获取所述中继设备发送的所述远端设备的信息。
  36. 根据权利要求30-35中任一项所述的网络设备，其特征在于，所述网络设备为所述中继设备所在公共陆地移动网络PLMN的第一PCF网元，或者，所述远端设备的归属地公共陆地移动网络HPLMN的第二PCF网元。
  37. 根据权利要求36所述的网络设备，其特征在于，若所述网络设备为所述第一PCF网元，接收模块，还用于从所述第二PCF网元获取所述远端设备的策略信息；
    相应的，所述处理模块，具体用于根据所述远端设备的策略信息以及所述远端设备的信息，生成所述URSP信息。
  38. 根据权利要求36所述的网络设备，其特征在于，若所述网络设备为所述第二PCF网元，所述处理模块，具体用于根据本地配置信息以及所述远端设备的信息，生成所述URSP信息。
  39. 根据权利要求36所述的网络设备，其特征在于，若所述网络设备为所述第二PCF网元，所述发送模块，具体用于通过所述第一PCF网元向所述远端设备发送所述URSP信息，所述第一PCF网元用于通过所述中继设备向所述远端设备发送所述URSP信息。
  40. 根据权利要求30-39中任一项所述的网络设备，其特征在于，所述发送模块， 具体用于向所述中继设备发送NAS消息，所述NAS消息包括所述URSP信息，所述中继设备用于将所述URSP信息转发给所述远端设备。
  41. 根据权利要求30-39中任一项所述的网络设备，其特征在于，所述发送模块，具体用于向所述中继设备发送所述URSP信息，所述中继设备用于根据所述URSP信息生成配置信息，并向所述远端设备发送所述配置信息，所述配置信息用于指示所述URSP信息。
  42. 根据权利要求30-41中任一项所述的网络设备，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  43. 根据权利要求30-41中任一项所述的网络设备，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  44. 一种中继设备，其特征在于，包括：
    接收模块，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    发送模块，用于向远端设备发送所述URSP信息。
  45. 根据权利要求44所述的中继设备，其特征在于，所述接收模块，具体用于接收所述PCF网元发送的非接入层NAS消息，所述NAS消息包括所述URSP信息。
  46. 根据权利要求44所述的中继设备，其特征在于，所述发送模块，还用于：
    在所述接收模块接收所述PCF网元发送的所述URSP信息之前，向所述PCF网元发送所述远端设备的信息。
  47. 根据权利要求46所述的中继设备，其特征在于，所述发送模块，具体用于向所述PCF网元发送NAS消息，所述NAS消息包括所述远端设备的信息。
  48. 根据权利要求47所述的中继设备，其特征在于，所述发送模块，具体用于通过移动性管理功能AMF网元，向所述PCF网元发送所述NAS消息。
  49. 根据权利要求46所述的中继设备，其特征在于，所述发送模块，具体用于通过会话管理功能SMF网元，向所述PCF网元发送所述远端设备的信息。
  50. 根据权利要求44-49中任一项所述的中继设备，其特征在于，所述中继设备还包括：处理模块；
    所述处理模块，用于根据所述URSP信息生成配置信息，所述配置信息用于指示所述URSR信息；
    所述发送模块，用于向所述远端设备发送所述配置信息。
  51. 根据权利要求44-50中任一项所述的中继设备，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  52. 根据权利要求44-50中任一项所述的中继设备，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  53. 一种远端设备，其特征在于，包括：
    接收模块，用于接收策略控制功能PCF网元发送的用户设备路由选择策略URSP信息，所述URSP信息用于指示中继业务的会话建立策略；
    处理模块，用于根据所述URSP信息建立会话。
  54. 根据权利要求53所述的远端设备，其特征在于，所述接收模块，具体用于通过中继设备接收所述PCF网元发送的URSP信息。
  55. 根据权利要求53或54所述的远端设备，其特征在于，所述接收模块，具体用于接收中继设备发送的配置信息，所述配置信息是所述中继设备根据所述PCF网元发送的URSP信息生成的，所述配置信息用于指示所述URSP信息。
  56. 根据权利要求53-55中任一项所述的远端设备，其特征在于，所述远端设备还包括：发送模块；
    所述发送模块，用于在接收模块接收所述PCF网元发送的URSP信息之前，通过中继设备向所述PCF网元发送所述远端设备的信息。
  57. 根据权利要求53-56中任一项所述的远端设备，其特征在于，所述远端设备的信息包括以下至少一项：所述远端设备的标识、互联网协议IP地址、端口号。
  58. 根据权利要求53-56中任一项所述的远端设备，其特征在于，所述URSP信息包括以下至少一项：用于中继业务的业务描述信息，用户会话参数。
  59. 一种网络设备，其特征在于，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行如权利要求1-14中任一项所述的方法。
  60. 一种中继设备，其特征在于，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行如权利要求15-23中任一项所述的方法。
  61. 一种远端设备，其特征在于，包括：存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器运行所述计算机程序执行如权利要求24-29中任一项所述的方法。
  62. 一种存储介质，其特征在于，所述存储介质包括计算机程序，所述计算机程序用于实现如权利要求1-14中任一项所述的方法，或者，如权利要求15-23中任一项所述的方法，或者，如权利要求24-29中任一项所述的方法。
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