WO2024022373A1 - 侧行链路通信方法以及相关装置 - Google Patents

侧行链路通信方法以及相关装置 Download PDF

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Publication number
WO2024022373A1
WO2024022373A1 PCT/CN2023/109253 CN2023109253W WO2024022373A1 WO 2024022373 A1 WO2024022373 A1 WO 2024022373A1 CN 2023109253 W CN2023109253 W CN 2023109253W WO 2024022373 A1 WO2024022373 A1 WO 2024022373A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
identification
request
positioning
identification information
Prior art date
Application number
PCT/CN2023/109253
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English (en)
French (fr)
Inventor
朱宁波
郝金平
黄甦
Original Assignee
华为技术有限公司
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
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024022373A1 publication Critical patent/WO2024022373A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the present application relates to the field of communication technology, and in particular, to a sidelink communication method and related devices.
  • Terminal devices can be connected through the ProSe communication 5 (PC5) interface and communicate through the sidelink (SL). For example, terminal device 1 sends a signal to terminal device 2 via a side link.
  • PC5 ProSe communication 5
  • SL sidelink
  • terminal device 1 sends a signal to terminal device 2 via a side link.
  • how to trigger positioning measurement and/or ranging between two terminal devices on the sidelink is an issue worth considering.
  • the present application provides a sidelink communication method and related devices for a second terminal device to identify a first terminal device, thereby facilitating sidelink positioning and/or realization between the first terminal device and the second terminal device. Ranging.
  • the first aspect of this application provides a sidelink communication method, including:
  • the first terminal device sends the identification information of the first terminal device to the positioning management device, and the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process. Then, the first terminal device receives a sidelink message from the second terminal device, where the sidelink message includes the identification information of the first terminal device.
  • the first terminal device may report the identification information of the first terminal device to the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process.
  • the first terminal device receives a sidelink message from the second terminal device, where the sidelink message includes identification information of the first terminal device.
  • the identification information of the first terminal device on the second terminal device is provided by the positioning management device to the second terminal device, thereby enabling the second terminal device to identify the first terminal device, and facilitating the implementation of communication between the first terminal device and the second terminal device.
  • Sidelink positioning and/or ranging between devices This supports the positioning management device to initiate or assist side link positioning and/or ranging between the first terminal device and the second terminal device.
  • a second aspect of this application provides a sidelink communication method, including:
  • the first terminal device determines the identification information of the first terminal device, and the identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device; the first terminal device reports to the positioning management device Send identification information of the first terminal device.
  • the first terminal device may report the identification information of the first terminal device to the positioning management device.
  • the identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device.
  • This facilitates the positioning management device to include the identification information of the first terminal device in the request when the positioning management device requests the second terminal device for sidelink positioning of the first terminal device.
  • This triggers the second terminal device to identify and discover the first terminal device.
  • sidelink positioning and/or ranging between the first terminal device and the second terminal device is achieved.
  • the method further includes:
  • the first terminal device receives a first request from the positioning management device, and the first request is used to request the first terminal device to report identification information of the first terminal device.
  • the positioning management device when the positioning management device has positioning requirements for the first terminal device, the positioning management device may actively request the first terminal device to report the identification information of the first terminal device. Therefore, when the positioning management device sends a positioning request to the second terminal device, the positioning request can carry the identification information of the first terminal device. This triggers the second terminal device to discover or identify the first terminal device. Thus, sidelink positioning and/or ranging between the first terminal device and the second terminal device is achieved.
  • the first request further includes first indication information
  • the first indication information is used to indicate the identification type reported by the first terminal device
  • the identification type includes the layer 2 identification ( layer-2 ID) or application layer ID (application layer ID).
  • the first request also carries first indication information, used to indicate the type of identification reported by the first terminal device, so that the positioning management device requests the second terminal device to perform sidelink positioning and/or ranging.
  • the identification type includes layer 2 identification or application layer identification, which provides a variety of possible identification types to facilitate the implementation of the solution.
  • the second terminal device can discover or identify the first terminal device through the layer 2 identifier or the application layer identifier.
  • the method further includes:
  • the first terminal device receives a second request sent from the second terminal device, and the second request is used to request the first terminal device to report identification information of the first terminal device.
  • the second terminal device when the second terminal device has a positioning requirement, can request the first terminal device to report the identification information of the first terminal device to the positioning management device, thereby triggering the positioning management device to request the first terminal device. Perform sidelink positioning and/or ranging with the second terminal device.
  • the second request further includes second indication information, and the second indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes the layer 2 identification or Application layer identifier.
  • the second request further includes second indication information, used to indicate the type of identification reported by the first terminal device, so that the positioning management device requests the second terminal device to perform sidelink positioning and/or ranging.
  • the identification type includes layer 2 identification or application layer identification, which provides a variety of possible identification types to facilitate the implementation of the solution.
  • the second terminal device can discover or identify the first terminal device through the layer 2 identifier or the application layer identifier.
  • a possible implementation method also includes:
  • the first terminal device receives a sidelink message sent from the second terminal device, where the sidelink message includes identification information of the first terminal device.
  • the first terminal device monitors the side link message.
  • the first terminal device can determine the side link message.
  • the link message is sent to the first terminal device. Therefore, the first terminal device can receive the sidelink message sent by the second terminal device, so that the second terminal device discovers or identifies the first terminal device.
  • the method also includes:
  • the first terminal device establishes a side link connection with the second terminal device; the first terminal device and the second terminal device perform side link positioning and/or ranging.
  • the first terminal device can establish a side link connection with the second terminal device, and perform side link positioning and/or through the side link between the first terminal device and the second terminal device. Ranging. This enables sidelink positioning and/or ranging.
  • the method also includes:
  • the first terminal device sends a first measurement result to the positioning management device, and the first measurement result is obtained by performing sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the first terminal device and the second terminal device perform sidelink positioning and/or ranging to obtain the first measurement result, and send the first measurement result to the positioning management device.
  • the positioning measurement of the first terminal device and/or the second terminal device by the positioning management device is realized.
  • the third aspect of this application provides a sidelink communication method, including:
  • the second terminal device receives the identification information of the first terminal device from the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process; the second terminal device sends The first terminal device sends a sidelink message, where the sidelink message includes identification information of the first terminal device.
  • the second terminal device receives the identification information of the first terminal device from the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process.
  • the fourth aspect of this application provides a sidelink communication method, including:
  • the second terminal device receives a third request from the positioning management device.
  • the third request is used to request the first terminal device to communicate with the second terminal device.
  • side link positioning and/or ranging the third request includes the identification information of the first terminal device, and the identification information of the first terminal device is assigned by the positioning management device to the first terminal device, or is the first terminal device.
  • the device reports to the positioning management device; the second terminal device sends a side link message to the first terminal device, and the side link message includes the identification information of the first terminal device; the second terminal device establishes a side link with the first terminal device.
  • a side link is connected, and side link positioning and/or ranging is performed between the second terminal equipment and the first terminal equipment.
  • the second terminal device receives a third request from the positioning management device, and the third request includes the identification information of the first terminal device. This triggers the sending of a sidelink message to the first terminal device, where the sidelink message includes the identification information of the first terminal device, and establishes a sidelink connection with the first terminal device. Then, the second terminal device can perform sidelink positioning and/or ranging based on the sidelink with the first terminal device. Implement sidelink positioning and/or ranging between the first terminal device and the second terminal device. This supports the positioning management device to initiate or assist side link positioning and/or ranging between the first terminal device and the second terminal device.
  • the method further includes:
  • the second terminal device sends a second request to the first terminal device.
  • the second request is used to request the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the second terminal device when the second terminal device has a positioning requirement, can request the first terminal device to report the identification information of the first terminal device to the positioning management device, thereby triggering the positioning management device to request the first terminal device. Perform sidelink positioning and/or ranging with the second terminal device.
  • the second request further includes second indication information, and the second indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes the layer 2 identification or Application layer identifier.
  • the second request further includes second indication information, used to indicate the type of identification reported by the first terminal device, so that the positioning management device requests the second terminal device to perform sidelink positioning and/or ranging.
  • the identification type includes layer 2 identification or application layer identification, which provides a variety of possible identification types to facilitate the implementation of the solution.
  • the second terminal device can discover or identify the first terminal device through the layer 2 identifier or the application layer identifier.
  • the second terminal device receives the identification information of the first terminal device from the positioning management device, including:
  • the second terminal device receives a third request from the positioning management device.
  • the third request includes the identification information of the first terminal device.
  • the third request is used to request sidelink positioning between the first terminal device and the second terminal device. /or ranging.
  • the second terminal device receives a third request from the positioning management device, and the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • This allows the second terminal device to perform side link positioning and/or ranging with the first terminal device after identifying the first terminal device, thereby supporting the positioning management device to initiate the communication between the first terminal device and the second terminal device.
  • Sidelink positioning and/or ranging is a third request from the positioning management device, and the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • a possible implementation method also includes:
  • the second terminal equipment establishes a side link connection with the first terminal equipment; the second terminal equipment performs side link positioning and/or ranging with the first terminal equipment.
  • the second terminal device can establish a side link connection with the first terminal device, and perform side link positioning and/or through the side link between the first terminal device and the second terminal device. Ranging. This enables sidelink positioning and/or ranging.
  • the method also includes:
  • the second terminal device sends a second measurement result to the positioning management device.
  • the second measurement result is obtained by performing side link positioning and/or ranging between the second terminal device and the first terminal device.
  • the second terminal device performs sidelink positioning and/or ranging with the first terminal device to obtain the second measurement result, and sends the second measurement result to the positioning management device.
  • the positioning measurement of the first terminal device and/or the second terminal device by the positioning management device is realized.
  • the fifth aspect of this application provides a sidelink communication method, including:
  • the positioning management device determines the identification information of the first terminal device, and the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process; the positioning management device sends the information to the second terminal device. Send identification information of the first terminal device.
  • the positioning management device may determine that other terminal devices can identify the first terminal in the positioning and/or ranging process. Identification information of the device. Then, the positioning management device sends the identification information of the first terminal device to the second terminal device. This facilitates the second terminal device to identify the first terminal device through the identification information of the first terminal device. This facilitates sidelink positioning and/or ranging between the first terminal device and the second terminal device. This solves the problem that the identity of the first terminal device used in the identification or matching process between terminal devices in the side link is not aligned with the identity of the terminal device used in the new radio (new radio, NR) positioning process. This supports the positioning management device to initiate or assist side link positioning and/or ranging between the first terminal device and the second terminal device.
  • new radio new radio
  • the sixth aspect of this application provides a sidelink communication method, including:
  • the positioning management device determines the identification information of the first terminal device, and the identification information of the first terminal device is used for other terminal devices on the side link where the first terminal device is located to discover the first terminal device; the positioning management device provides the second terminal with The device sends a third request.
  • the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes identification information of the first terminal device.
  • the positioning management device may determine identification information for other terminal devices on the side link where the first terminal device is located to discover the first terminal device, and send a third request to the second terminal device.
  • the third request includes identification information of the first terminal device.
  • the positioning management device sends the identification information of the first terminal device to the second terminal device, including:
  • the positioning management device sends a third request to the second terminal device.
  • the third request is used to request side link positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes the first terminal device. identification information.
  • the positioning management device may issue the identification information of the first terminal device through a third request.
  • the third request is used to request sidelink positioning and/or performance between the first terminal device and the second terminal device. or ranging. This enables the positioning management device to initiate sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the method also includes:
  • the positioning management device receives a first measurement result from the first terminal device and/or a second measurement result from the second terminal device, and the first measurement result and/or the second measurement result is between the first terminal device and the second terminal device. obtained by sidelink positioning and/or ranging.
  • the positioning management device may receive the first measurement result and/or the second measurement result, thereby realizing the positioning measurement of the first terminal device and/or the second terminal device by the positioning management device.
  • the positioning management device determines the identification information of the first terminal device including: the positioning management device receives the identification information from the first terminal device.
  • the positioning management device may receive identification information from the first terminal device.
  • the identification information of the first terminal device is used for the first terminal device. This facilitates the positioning management device to include the identification information of the first terminal device in the request when the positioning management device requests the second terminal device for sidelink positioning of the first terminal device. Thereby triggering the second terminal device to recognize the first terminal device or triggering the second terminal device to pair with the first terminal device. This facilitates sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the method further includes:
  • the positioning management device sends a first request to the first terminal device, where the first request is used to request the first terminal device to report identification information of the first terminal device.
  • the positioning management device when the positioning management device has positioning requirements for the first terminal device, the positioning management device may actively request the first terminal device to report the identification information of the first terminal device. Therefore, when the positioning management device sends a positioning request to the second terminal device, the positioning request can carry the identification information of the first terminal device. This facilitates sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the first request further includes first indication information, and the first indication information Used to indicate the identification type reported by the first terminal device.
  • the identification type includes a layer 2 identification or an application layer identification.
  • the first request also carries first indication information, used to indicate the type of identification reported by the first terminal device, so that the positioning management device requests the second terminal device to perform sidelink positioning and/or ranging.
  • the positioning management device determines the identification information of the first terminal device, including: the positioning management device allocates the identification information of the first terminal device to the first terminal device;
  • the method also includes: the positioning management device sends the identification information of the first terminal device to the first terminal device.
  • the positioning management device may allocate identification information to the first terminal device. Therefore, when the positioning management device sends a positioning request to the second terminal device, the positioning request can carry the identification information of the first terminal device. Thereby triggering the second terminal device to recognize the first terminal device. Thus, sidelink positioning and/or ranging between the first terminal device and the second terminal device is achieved.
  • the seventh aspect of this application provides a sidelink communication method, including:
  • the first terminal device receives the identification information of the first terminal device from the positioning management device; the identification information of the first terminal device is assigned by the positioning management device to the first terminal device; the first terminal device receives the identification information of the first terminal device from the second terminal device.
  • a side link message includes identification information of the first terminal device.
  • the first terminal device receives the identification information assigned to it by the positioning management device. Then, the first terminal device receives a sidelink message from the second terminal device, where the sidelink message includes identification information of the first terminal device.
  • Implementing the second terminal device to identify the first terminal device facilitates sidelink positioning and/or ranging between the first terminal device and the second terminal device. This supports the positioning management device to initiate or assist side link positioning and/or ranging between the first terminal device and the second terminal device.
  • a possible implementation method also includes:
  • the first terminal equipment establishes a side link with the second terminal equipment; and performs side link positioning and/or ranging with the second terminal equipment.
  • the first terminal device can establish a side link connection with the second terminal device, and perform side link positioning and/or through the side link between the first terminal device and the second terminal device. Ranging. This enables sidelink positioning and/or ranging.
  • the eighth aspect of this application provides a sidelink communication method, including:
  • the first terminal device receives the first instruction information or the first message from the second terminal device, and the first instruction information or the first message is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device; first The terminal device sends the identification information of the first terminal device to the positioning management device.
  • the second terminal device may instruct the first terminal device (the first terminal device is a terminal device adjacent to the second terminal device) to report the identification information of the first terminal device to the positioning management device. Then, the first terminal device sends the identification information of the first terminal device to the positioning management device. This facilitates the location management device to identify the first terminal device. This facilitates the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device. This supports the positioning management device to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.
  • a ninth aspect of this application provides a sidelink communication method, including:
  • the second terminal device sends the first instruction information or the first message to the first terminal device.
  • the first instruction information or the first message is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device; the second terminal device
  • the device sends a first request to the positioning management device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device/or the second terminal device.
  • the first request includes identification information of the first terminal device.
  • the second terminal device may instruct the first terminal device (the first terminal device is a terminal device adjacent to the second terminal device) to report the identification information of the first terminal device to the positioning management device.
  • the second terminal device sends a first request to the positioning management device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device/or the second terminal device. Therefore, the location management device can identify the first terminal device. This facilitates the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the positioning management device is supported to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.
  • the first indication information or the first message is used to indicate the identification type of the identification information reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification. .
  • the first indication information or the first message may also indicate the identification type reported by the first terminal device. This facilitates the subsequent positioning management device to identify the identifier used by the first terminal device on the side link, and facilitates side link positioning and/or ranging for the first terminal device.
  • a tenth aspect of this application provides a sidelink communication method, including:
  • the positioning management device receives the identification information from the first terminal device; the positioning management device receives the first request from the second terminal device, the first request is used to request positioning measurement and/or on the first terminal device/or the second terminal device.
  • the first request includes identification information of the first terminal device; the positioning management device identifies the first terminal device according to the identification information sent by the first terminal device and the first request.
  • the positioning management device identifies the first terminal device according to the identification information sent by the first terminal device and the first request. This facilitates the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device based on the first request.
  • the positioning management device is supported to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.
  • the identification information of the first terminal device includes a layer 2 identification or an application layer identification of the first terminal device.
  • the layer-2 identifier includes at least one of the following: source layer-2 identifier (source layer-2 ID), or destination layer-2 identifier (destination layer-2 ID). -2 ID);
  • the application layer identifier includes at least one of the following: ProSe application layer ID, vehicle to everything application layer ID, identification for proximity service discovery process, or ranging application Layer ID.
  • the identification used for the proximity service discovery process includes at least one of the following: proximity service application identification (ProSe application ID), application identification (application ID), user information identification (user info ID), restricted proximity service application user equipment identification (restricted ProSe application UE ID, RPAUID), or proximity service based discovery user equipment identification (ProSe discovery UE ID, PDUID).
  • the identification information of the first terminal device further includes at least one of the following: the source layer 2 identification or the target layer 2 identification of the first terminal device. Validity time and update period.
  • the eleventh aspect of this application provides a sidelink communication method, including:
  • the positioning management device receives a first request from the second terminal device.
  • the first request is used to request positioning measurement and/or ranging of the first terminal device and/or the second terminal device.
  • the first request includes the first terminal device.
  • the first type of identification is obtained by the second terminal device based on the side link; the positioning management device provides direct discovery name management function based on the proximity service function and fifth generation mobile communication (5th generation direct discovery name management function, 5G DDNMF), proximity service function server or vehicle to everything (V2X) application server sends a second request.
  • the second request is used to request the second type identification of the first terminal device.
  • the second request includes the first terminal The first type identification of the device; the positioning management device receives the second type identification of the first terminal device sent from the proximity service function, 5G DDNMF, proximity service function server or V2X application server; the positioning management device receives the second type identification of the first terminal device based on the proximity service function, 5G DDNMF, proximity service function server or V2X application server; The second type identification identifies the first terminal device.
  • the positioning management device can obtain the second type identification of the first terminal device through the proximity service function, 5G DDNMF, proximity service function server or V2X application server. Then the location management device identifies the first terminal device according to the second type identification of the first terminal device. This facilitates the positioning management device to perform positioning measurement and/or ranging for the first terminal device and/or the second terminal device.
  • the first type identification of the first terminal device includes a layer 2 identification of the first terminal device or an application layer identification of the first terminal device.
  • the second terminal device obtains the first type identifier of the first terminal device through the side link communication process, and carries the first type identifier of the first terminal device through the first request to request the first terminal device and /or the second terminal device performs positioning measurement and/or ranging.
  • the layer 2 identifier includes at least one of the following: a source layer 2 identifier, or a target layer 2 identifier;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification in the above example can be used for discovery or identification between different terminal devices. Therefore, in the solution of this application, the second terminal device can be a communication device. Obtain the first type identifier through the sidelink communication process, and carry the first type identifier of the first terminal device through the first request to request positioning measurement and/or positioning of the first terminal device and/or the second terminal device. or ranging.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user Device identification, or discovering user device identification based on proximity services.
  • the second type of identification of the first terminal device includes a user permanent identifier (subscription permanent identifier, SUPI) of the first terminal device, a globally unique temporary identity (globally uique temporary identity) , GUTI), or international mobile subscriber identity (IMSI).
  • SUPI subscription permanent identifier
  • GUTI globally unique temporary identity
  • IMSI international mobile subscriber identity
  • the second type identification of the first terminal device may be SUPI, GUTI or IMSI of the first terminal device, and the positioning management device may identify the second type identification of the first terminal device. This enables the positioning management device to identify the first terminal device, and facilitates subsequent positioning measurements for the first terminal device.
  • a twelfth aspect of this application provides a communication device, including:
  • the transceiver module is used to send the identification information of the communication device to the positioning management equipment.
  • the identification information of the communication device is used by other terminal equipment to identify the communication device in the positioning and/or ranging process; receive the side row from the second terminal equipment.
  • Link message, the sidelink message includes identification information of the communication device.
  • a thirteenth aspect of this application provides a communication device, including:
  • a processing module used to determine the identification information of the communication device, and the identification information of the communication device is used for the terminal equipment on the side link where the communication device is located to discover the communication device;
  • the transceiver module is used to send the identification information of the communication device to the positioning management device.
  • the transceiver module is also used to:
  • a first request is received from the positioning management device.
  • the first request is used to request the communication device to report identification information of the communication device.
  • the first request further includes first indication information, the first indication information is used to indicate the identification type reported by the communication device, and the identification type includes the layer 2 identification or Application layer identifier.
  • the transceiver module is also used to:
  • a second request sent from the second terminal device is received.
  • the second request is used to request the communication device to report identification information of the communication device.
  • the second request further includes second indication information, and the second indication information is used to indicate the identification type reported by the communication device, and the identification type includes the layer 2 identification or Application layer identifier.
  • the transceiver module is also used to:
  • a sidelink message is received from the second terminal device, where the sidelink message includes identification information of the first terminal device.
  • the communication device further includes a processing module
  • a processing module configured to establish a side link connection with the second terminal device; and perform side link positioning and/or ranging with the second terminal device.
  • processing module is also used to:
  • the transceiver module is also used to:
  • the positioning management device Send a first measurement result to the positioning management device, where the first measurement result is obtained by performing sidelink positioning and/or ranging between the communication device and the second terminal device.
  • a fourteenth aspect of this application provides a communication device, including:
  • a transceiver module configured to receive the identification information of the first terminal device from the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process; to the first terminal device
  • the device sends a sidelink message, where the sidelink message includes identification information of the first terminal device.
  • a fifteenth aspect of this application provides a communication device, including:
  • a transceiver module configured to receive a third request from the positioning management device.
  • the third request is used to request side link positioning and/or ranging between the first terminal device and the communication device.
  • the third request includes the first terminal device.
  • the identification information of the first terminal device is assigned by the positioning management device to the first terminal device, or is reported by the first terminal device to the positioning management device; the identification information is sent to the first terminal device.
  • a processing module configured to establish a side link connection with the first terminal device; and perform side link positioning and/or ranging with the first terminal device.
  • the transceiver module is also used to:
  • the second request further includes second indication information, the second indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes layer 2 Identity or application layer identification.
  • the transceiver module is specifically used for:
  • a third request is received from the positioning management device, the third request includes identification information of the first terminal device, and the third request is used to request side link positioning and/or ranging between the first terminal device and the communication device.
  • the communication device further includes a processing module
  • a processing module configured to establish a side link connection with the first terminal device; and perform side link positioning and/or ranging with the first terminal device.
  • the transceiver module is also used to:
  • a sixteenth aspect of this application provides a communication device, including:
  • a processing module configured to determine the identification information of the first terminal device, and the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process;
  • the transceiver module is configured to send the identification information of the first terminal device to the second terminal device.
  • a seventeenth aspect of this application provides a communication device, including:
  • a processing module configured to determine the identification information of the first terminal device, and the identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device;
  • a transceiver module configured to send a third request to the second terminal device.
  • the third request is used to request side link positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes the first Identification information of the terminal device.
  • the transceiver module is specifically used for:
  • the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes identification information of the first terminal device. .
  • the transceiver module is also used to:
  • the transceiver module is also used to:
  • the transceiver module is also used to:
  • the first request further includes first indication information
  • the first indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes layer 2 Identity or application layer identification.
  • the processing module is specifically used to:
  • the transceiver module is also used for:
  • An eighteenth aspect of this application provides a communication device, including:
  • a transceiver module configured to receive the identification information of the communication device sent from the positioning management device; the identification information of the communication device is assigned by the positioning management device to the communication device; receive the sidelink message from the second terminal device, the sidelink The route message includes identification information of the communication device.
  • the communication device further includes a processing module
  • a processing module configured to establish a side link with the second terminal device; and perform side link positioning and/or ranging with the second terminal device.
  • a nineteenth aspect of the present application provides a communication device, including:
  • a transceiver module configured to receive first indication information or a first message from the second terminal device.
  • the first indication information or first message is used to instruct the communication device to report the identification information of the communication device to the positioning management device; send to the positioning management device Identification information of the communication device.
  • the first indication information or the first message is used to indicate the identification type of the identification information reported by the communication device, and the identification type includes a layer 2 identification or an application layer identification.
  • the identification information of the communication device includes a layer 2 identification or an application layer identification of the communication device.
  • the layer 2 identification includes at least one of the following: a source layer 2 identification, or a target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service discovery process includes at least one of the following: based on the proximity service application Identity, application identification, user information identification, restricted application user equipment identification based on proximity services, or discovery of user equipment identification based on proximity services.
  • the identification information of the communication device further includes at least one of the following: the layer 2 identification or application of the communication device The validity time and update period of the layer identifier.
  • a twentieth aspect of this application provides a communication device, including:
  • a transceiver module configured to send first indication information or a first message to the first terminal device.
  • the first indication information or first message is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device; to the positioning management device;
  • the management device sends a first request.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device and/or the communication device.
  • the first request includes identification information of the first terminal device.
  • the first indication information or the first message is used to indicate the identification type of the identification information reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • a twenty-first aspect of this application provides a communication device, including:
  • a transceiver module configured to receive identification information from a first terminal device; to receive a first request from a second terminal device, where the first request is used to request positioning measurement and/or measurement of the first terminal device/or the second terminal device. distance, the first request includes identification information of the first terminal device;
  • a processing module configured to identify the first terminal device according to the identification information sent by the first terminal device and the first request.
  • the identification information of the first terminal device includes the first The layer 2 identification or application layer identification of the terminal device.
  • the layer 2 identification includes at least one of the following: source Layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification of the proximity service discovery process is used, Including at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or proximity service-based user equipment identification.
  • the identification information of the first terminal device also includes the following: At least one item: the validity time and update period of the layer 2 identifier or application layer identifier of the first terminal device.
  • a twenty-second aspect of this application provides a communication device, including:
  • a transceiver module configured to receive a first request from a second terminal device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device/or the second terminal device.
  • the first request includes the first terminal device.
  • the first type of identification is the second terminal.
  • the terminal device obtains it based on the side link; sends a second request to the proximity service function network element, 5G DDNMF, proximity service function server or V2X application server.
  • the second request is used to request the second type of the first terminal device.
  • Identity the second request includes the first type identification of the first terminal device; receiving the second type identification of the first terminal device sent from the proximity service function, 5G DDNMF, proximity service function server or V2X application server;
  • a processing module configured to identify the first terminal device according to the second type identification of the first terminal device.
  • the first type identification of the first terminal device includes a layer 2 identification of the first terminal device or an application layer identification of the first terminal device.
  • the layer 2 identifier includes at least one of the following: a source layer 2 identifier, or a target layer 2 identifier;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application User equipment identification, or discovering user equipment identification based on proximity services.
  • the second type identification of the first terminal device includes the SUPI, GUTI, or IMSI of the first terminal device.
  • a twenty-third aspect of the present application provides a communication device.
  • the communication device includes a processor.
  • the processor is used to call and run the computer program stored in the memory, so that the processor implements any one of the implementation methods of any one of the first to eleventh aspects.
  • the communication device further includes a transceiver; the processor is also used to control the transceiver to send and receive signals.
  • the communication device includes a memory, and a computer program is stored in the memory.
  • a twenty-fourth aspect of the present application provides a computer program product including instructions, which, when run on a computer, causes the computer to execute any one of the implementations of the first to eleventh aspects.
  • a twenty-fifth aspect of the present application provides a computer-readable storage medium, including computer instructions.
  • the computer instructions When the computer instructions are run on a computer, they cause the computer to execute any one of the implementations of the first to eleventh aspects.
  • a twenty-sixth aspect of the present application provides a chip device, including a processor, connected to a memory, and calling a program stored in the memory, so that the processor executes any one of the above-mentioned first to eleventh aspects. way of implementation.
  • a twenty-seventh aspect of the present application provides a communication system, which includes the communication device shown in the fourteenth aspect and the communication device shown in the sixteenth aspect.
  • the communication system further includes a communication device as shown in the twelfth aspect; or a communication device as shown in the eighteenth aspect.
  • a twenty-eighth aspect of the present application provides a communication system, which includes the communication device shown in the fifteenth aspect and the communication device shown in the seventeenth aspect.
  • the communication system further includes a communication device as shown in the thirteenth aspect, or a communication device as shown in the eighteenth aspect.
  • a twenty-ninth aspect of the present application provides a communication system.
  • the communication system includes the communication device shown in the nineteenth aspect, the communication device shown in the twentieth aspect, and the communication device shown in the twenty-first aspect. .
  • the first terminal device sends the identification information of the first terminal device to the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process.
  • the first terminal device receives a sidelink message from the second terminal device, where the sidelink message includes the identification information of the first terminal device.
  • the identification information of the first terminal device on the second terminal device is provided by the positioning management device to the second terminal device, thereby enabling the second terminal device to identify the first terminal device, and facilitating the implementation of communication between the first terminal device and the second terminal device.
  • Sidelink positioning and/or ranging between devices This supports the positioning management device to initiate or assist side link positioning and/or ranging between the first terminal device and the second terminal device.
  • Figure 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • Figure 2 is a schematic diagram of an embodiment of the sidelink communication method according to the embodiment of the present application.
  • Figure 3 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • Figure 4 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • Figure 5 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • Figure 6 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Figure 8 is another structural schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 9 is another structural schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 10 is another structural schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 11 is another structural schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 12 is another structural schematic diagram of a communication device according to an embodiment of the present application.
  • Figure 13 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • Embodiments of the present application provide a sidelink communication method and related devices, which are used by a second terminal device to identify a first terminal device, thereby facilitating the realization of sidelink positioning and identification between the first terminal device and the second terminal device. /or ranging.
  • At least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a, b, and c.
  • a, b, c can be single or multiple.
  • Internet of Things systems can be an Internet of Vehicles system, an industrial Internet of Things system, a smart home system, etc.
  • public safety systems smart city systems, transportation safety systems, industrial control systems, driverless systems, industrial robot systems, etc.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • the communication system includes terminal equipment 101, terminal equipment 102, terminal equipment 103, access network equipment 104, access and mobility management function (AMF) 105 and location management function (location management function,LMF)106.
  • AMF access and mobility management function
  • LMF location management function
  • the terminal device 101, the terminal device 102 and the terminal device 103 can be connected through interfaces.
  • the access network device 104 and the AMF 105 can be connected through an interface, and the AMF 105 and the LMF 106 can be connected through an interface.
  • the terminal device 101 and the terminal device 102 may be connected through a PC5 interface.
  • the terminal device 101 and the terminal device 103 can be connected through the PC5 interface, and the terminal device 101 and the terminal device 103 can be connected through the PC5 interface.
  • the terminal device 101 and the terminal device 102 are respectively connected to the access network device 104 through the NR-Uu interface, and the access network device 104 and the AMF 105 are connected through the NG-C interface.
  • AMF105 and LMF106 are connected through the NL1 interface.
  • the NR-Uu interface is the communication interface between terminal equipment and access network equipment.
  • the NG-C interface is the control plane interface between the access network and the core network.
  • the NL1 interface is the communication interface between AMF and LMF.
  • FIG. 1 only shows an example in which the communication system includes a terminal device 101, a terminal device 102, a terminal device 103 and an access network device 104.
  • the communication system may include at least two terminal devices and at least one access network device, which is not specifically limited in this application.
  • Terminal equipment is also called user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • An end device is a device that includes wireless communication capabilities (providing voice/data connectivity to the user).
  • handheld devices for example, handheld devices, vehicle-mounted devices, machine type communication (MTC) terminals with wireless connection functions, etc.
  • terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile Internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery , wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, or wireless terminals in smart home, etc.
  • Access network equipment 104 is a device deployed in a wireless access network to provide wireless communication functions for terminal equipment.
  • the access network device can connect the terminal device to the radio access network (RAN) node of the wireless network.
  • RAN radio access network
  • Access network equipment includes but is not limited to: evolved node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can also be used for 5G mobile communications Network devices in the system.
  • evolved node B evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • wireless fidelity wireless fidelity
  • AP wireless relay node
  • next generation base station (next generation NodeB, gNB), transmission reception point (TRP), transmission point (TP) in the NR system; or one or more of the base stations in the 5G mobile communication system A group (including multiple antenna panels) of antenna panels; alternatively, the access network device can also be a network node that constitutes a gNB or a transmission point.
  • baseband unit BBU
  • DU distributed unit
  • gNB may include centralized units (CUs) and DUs.
  • the gNB may also include an active antenna unit (AAU).
  • AAU active antenna unit
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer.
  • DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical (physical, PHY) layer.
  • AAU implements some physical layer processing functions, radio frequency processing and active antenna related functions.
  • the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer. Therefore, under this architecture, high-level signaling (such as RRC layer signaling) can also be considered to be sent by DU, or sent by DU and AAU.
  • the access network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), or the CU can be divided into network equipment in the core network (core network, CN), which is not limited in this application.
  • AMF is responsible for access control, registration management, service management, mobility management, etc. of terminal devices accessing the network.
  • LMF is used to calculate and manage the location of terminal devices.
  • the name of the AMF may change with the evolution of the communication system.
  • any functional network element with other names that has similar functions to the AMF can be understood as the AMF of this application. And it is applicable to the methods provided in the embodiments of this application.
  • LMF is the name in the current communication system.
  • the name of the LMF may change with the evolution of the communication system. Therefore, in the following text, the LMF will be called a positioning management device to introduce the technical solution of the present application.
  • the positioning management device is used to perform positioning calculation on the position of the terminal device.
  • the positioning management device in this application can be understood. And it is suitable for the method provided in this application.
  • Application ID Used to identify a specific application.
  • Proximity based services application identity In the open proximity service direct discovery process, identify terminals that can support 5G proximity services (5G ProSe) requirements and processes Information related to the application layer of the device. Typically used for communication transmission on sidelinks.
  • ProSe application code associated with the ProSe application identifier and used to open the ProSe direct discovery process.
  • the terminal device sends the ProSe-based user equipment identification (Prose discovery UE ID, PDUID) applied for.
  • ProSe restricted code used for restricted proximity service direct discovery process.
  • the terminal device sends restricted ProSe application UE to the 4G proximity service function or 5G DDNMF. ID, RPAUID) to obtain proximity service-based restricted codes.
  • PDUID ProSe discovery user equipment identification based on proximity service: It is part of the user equipment service authentication information and can be used to apply for PDUID from the proximity service application server (ProSe application server).
  • Restricted ProSe application UE ID It is a temporary identity generated by the ProSe application server (ProSe application server) for a restricted ProSe application user ID and is used to protect the application layer. user ID.
  • Layer-2 ID used for sidelink communication and/or V2X communication between terminal devices.
  • the layer 2 identifier includes the source layer-2 ID (source layer-2 ID) and the destination layer-2 ID (destination layer-2 ID).
  • Source layer 2 identification used to identify the sender of sidelink communications.
  • the length of the source layer 2 identifier is 24 bits and is split into two bit streams at the media access control (MAC) layer.
  • the first bit stream is the least significant bit (LSB) part of the source layer 2 identification.
  • the LSB part is sent to the physical layer.
  • the LSB part is used to identify the source of the expected data in the sidelink control information.
  • the length of the LSB part is 8 bits.
  • the second bit stream is the most significant bit (MSB) part of the source layer 2 identifier.
  • the length of the MSB part is 16 bits.
  • the MSB part is carried in the MAC header and is used for MAC layer packet filtering at the receiving end.
  • Target layer 2 identification used to identify target data in sidelink communication.
  • the target layer 2 identifier is 24 bits in length and is split into two bit streams at the MAC layer.
  • the first bit stream is the LSB part identified by the target layer 2.
  • the length of the LSB part is 16 bits.
  • the LSB part is sent to the physical layer.
  • the second bit stream is the MSB part identified by the target layer 2.
  • the length of the MSB part is 8 bits.
  • the MSB part is carried in the MAC header and is used for MAC layer packet filtering.
  • the identification shown above may be configured at a high level.
  • 5G ProSe direct discovery based on proximity service is a technology for terminal devices to discover nearby terminal devices in V2X communication systems.
  • There are two types of 5G direct discovery processes based on proximity services namely open discovery and restricted discovery.
  • There are two models for the 5G direct discovery process based on proximity services namely model A (mode A) and model B (mode B). Among them, model B only supports restricted discovery.
  • the 5G direct discovery process based on proximity services can be referred to as the discovery process.
  • Model A in the 5G proximity service discovery process.
  • Model A terminal equipment is divided into transmitting UE (announcing UE) and monitoring UE (monitoring UE).
  • the specific principle is: 5G DDNMF allocates proximity service application code (ProSe application code) and discovery filters (discovery filters) to two terminal devices respectively. If it is a restricted discovery process, 5G DDNMF allocates proximity service-based restricted application codes to the two terminal devices.
  • the sending UE sends an announcement message, which contains the type of message (indicating that the message is a notification message), the proximity service application code, and the security protection unit.
  • the monitoring UE receives the notification message from the sending UE. If the monitoring UE detects a proximity service-based application code that matches the discovery filter of the monitoring UE, it means that the monitoring UE has discovered the sending UE.
  • the sending of notification messages depends on two identifiers, namely the source layer 2 identifier and the target layer 2 identifier. These two identifiers can indicate a sidelink.
  • the source layer 2 identifier is generally selected independently by the terminal device and is used to send notification messages.
  • the target layer 2 identifier is generally configured for the terminal device by the ProSe communication 5 discovery (PC5-D) protocol layer.
  • the target layer 2 identification is obtained by mapping based on ProSe identities. In release 16 (R16), the identity used for the discovery process is usually the application identity.
  • Model B in the 5G proximity service discovery process.
  • Model B The basic principles of Model B are the same as Model A.
  • terminal equipment is divided into discovery UE (discoverer UE) and discovered UE (discoveree UE).
  • the discovery UE sends a request (solicitation) message, which contains the type of discovery message, proximity service query code (ProSe query code), security protection unit, etc.
  • the proximity service query code is assigned by 5G DDNMF, and the discovered UE will also be assigned corresponding discovery filters.
  • the discovered UE may return a response message to the discovered UE.
  • the response message includes the type of discovery message, proximity service query code, security protection unit, metadata message, etc. After the discovered UE receives the response message, the discovered UE is discovered. That is, the discovering UE and the discovered UE realize mutual discovery.
  • terminal devices can be connected through the PC5 interface and communicate through sidelinks (SL).
  • SL sidelinks
  • terminal device 1 sends a signal to terminal device 2 via a side link.
  • how to trigger positioning measurement and/or ranging between two terminal devices on the sidelink is an issue worth considering.
  • the positioning management device can request the target terminal device to report positioning information through a long term evolution positioning protocol (LPP) message.
  • the request may include the message type required to be reported, reporting period, measurement volume, etc.
  • the target terminal device can perform positioning measurement according to the request, and report the corresponding measurement results to the positioning management device through the LPP message.
  • the positioning management device identifies the target terminal device according to the SUPI of the target terminal device.
  • the side link communication process may include a discovery process, or a positioning and/or ranging process, etc., which are not specifically limited in this application. Two possible scenarios are described below.
  • the positioning management device can request the second terminal device to perform sidelink positioning with the first terminal device through an LPP message.
  • the positioning management device will not provide the SUPI of the first terminal device to the second terminal device.
  • the location management device sends the SUPI of the first terminal device to the second terminal device.
  • the second terminal device also cannot recognize the SUPI of the first terminal device. Therefore, the second terminal device cannot identify the first terminal device by using the SUPI of the first terminal device. Therefore, the LMF cannot provide a suitable identification of the first terminal device, so that the first terminal device and the second terminal device cannot be paired to establish a side link. As a result, side link positioning and/or ranging cannot be performed between the first terminal device and the second terminal device.
  • This application provides a corresponding technical solution for the positioning management device to trigger the execution of side link positioning and/or ranging between the second terminal device and the first terminal device, so as to realize the connection between the first terminal device and the second terminal device.
  • position measurement and/or ranging please refer to the relevant introduction of the embodiment shown in FIGS. 2 to 4 and the embodiment shown in steps 2001 to 2007 below.
  • the second terminal device initiates a request to the positioning management device through a mobile originated location request (MO-LR) to request positioning measurement of the first terminal device and/or the second terminal device.
  • the request includes the identification of the first terminal device.
  • the identity of the first terminal device may be an identity adopted based on the proximity service direct discovery process, or an identity adopted for sidelink communication transmission.
  • layer 2 identification, application layer identification, etc. The positioning management device cannot recognize the identifier carried in the request, resulting in the positioning management device being unable to perform positioning measurements on the first terminal device and/or the second terminal device.
  • This application provides a corresponding technical solution for the positioning management device to identify the second terminal device and realize the positioning management device to perform positioning measurement on the first terminal device and/or the second terminal device.
  • the positioning management device to identify the second terminal device and realize the positioning management device to perform positioning measurement on the first terminal device and/or the second terminal device.
  • “discovery” may be equivalent to “identification”, “matching” or “pairing”.
  • the application layer identification is mainly introduced using the discovery process as an example. In actual applications, this application is applicable to other application layer identifiers related to sidelinks, and is not specifically limited in this application.
  • FIG. 2 is a schematic diagram of a sidelink communication method according to an embodiment of the present application.
  • sidelink communication methods include:
  • the positioning management device determines the identification information of the first terminal device.
  • the identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device.
  • the terminal equipment on the side link where the first terminal equipment is located can be understood as other terminal equipment except the first terminal equipment. example
  • the identification information of the first terminal device is used by the second terminal device to discover the first terminal device.
  • the identification information of the first terminal device includes the layer 2 identification of the first terminal device, or the application layer identification of the first terminal device.
  • the layer 2 identifier includes at least one of the following: a source layer 2 identifier or a target layer 2 identifier.
  • a source layer 2 identifier or a target layer 2 identifier.
  • target layer 2 identification please refer to the relevant introduction above.
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or proximity service-based discovery of user equipment. logo. Please refer to the relevant introduction in the previous terminology for these identifiers.
  • the terminal device can use the proximity service-based application identification or the restricted proximity service-based application user equipment identification to apply to the 5G proximity service-based function or the 5G direct discovery name management network element for the discovery process.
  • Proximity Service-based application code or Proximity Service-based application restricted code Therefore, the first terminal device and the second terminal device can be discovered between the first terminal device and the second terminal device through the application layer identifier of the first terminal device.
  • the application layer identifier of the first terminal device is used for discovery between the first terminal device and the second terminal device. Therefore, in the technical solution of this application, the positioning management device may send the application layer identifier of the first terminal device to the second terminal device. Then, the second terminal device can use the application layer identifier of the first terminal device to realize discovery between the first terminal device and the second terminal device. Then, the first terminal device and the second terminal device perform side link positioning and/or ranging.
  • the identification information of the first terminal device includes the source layer 2 identification of the first terminal device.
  • the source layer 2 identifier is selected by the first terminal device.
  • the source layer 2 identifier is used for discovery between the first terminal device and the second terminal device. Therefore, in the technical solution of the present application, the positioning management device may send the source layer 2 identifier of the first terminal device to the second terminal device. Then, the second terminal device may use the source layer 2 identifier of the first terminal device to implement discovery between the first terminal device and the second terminal device. Then, the first terminal device and the second terminal device perform sidelink positioning and/or ranging.
  • the source layer 2 identifier or the application layer identifier of the first terminal device is an identifier bound or associated with the positioning service.
  • the source layer 2 identifier or the application layer identifier of the first terminal device can uniquely identify the first terminal device in one or more positioning services.
  • the identification information of the first terminal device also includes at least one of the following: user information of the first terminal device, validity time, and update period of the source layer 2 identification or application layer identification of the first terminal equipment.
  • step 201 there are many ways for the positioning management device to obtain the identification information of the first terminal device, which is not limited in this application.
  • the positioning management device to obtain the identification information of the first terminal device, which is not limited in this application.
  • the positioning management device sends a third request to the second terminal device.
  • the third request includes identification information of the first terminal device.
  • the second terminal device receives the third request from the positioning management device.
  • the third request is used to request sidelink positioning (sidelink positioning) and/or ranging (ranging) between the first terminal device and the second terminal device.
  • the third request also includes capability information of the first terminal device.
  • the third request includes at least one of the following that the positioning management device requests to report: the relative position of the first terminal device, the absolute position of the first terminal device, the relative position of the second terminal device, and the absolute position of the second terminal device. , measured quantity (for example, arrival time, arrival angle, etc.), distance between the first terminal device and the second terminal device.
  • measured quantity for example, arrival time, arrival angle, etc.
  • the identification information of the first terminal device is reported by the first terminal device to the positioning management device; or, as shown in the embodiment shown in Figure 4 below, the identification information of the first terminal device is The identification information of a terminal device is assigned by the positioning management device to the first terminal device.
  • the identification information of a terminal device is assigned by the positioning management device to the first terminal device.
  • the third request may also be called a position request (position request).
  • the positioning request is carried in a request location information message or a new LPP message, which is not limited in this application.
  • the second terminal device sends the side link message to the first terminal device.
  • the sidelink message includes the identity of the first terminal device information.
  • the first terminal device receives the sidelink message sent by the second terminal device.
  • the second terminal device may send a sidelink message to the first terminal device.
  • the sidelink message includes identification information of the first terminal device.
  • the sidelink message may be a request message in model A introduced above, or a notification message in model B, which is not specifically limited in this application.
  • the first terminal device monitors sidelink messages. If it is detected that the sidelink message includes the identification information of the first terminal device, the first terminal device receives the sidelink message sent by the second terminal device.
  • step 203 can be understood as a process in which the first terminal device discovers the second terminal device.
  • step 204 and step 205 may be executed after step 203.
  • step 204 Several possible implementation methods of the above step 204 are introduced below.
  • step 204 specifically includes steps 2004a to 2004b.
  • the first terminal device sends a first establishment request to the second terminal device.
  • the first establishment request is used to request establishment of a side link between the first terminal device and the second terminal device.
  • the second terminal device receives the first establishment request from the first terminal device.
  • the first terminal device before step 2004a, sends a response message to the second terminal device.
  • the response message is used to indicate that the first terminal device has discovered the second terminal device.
  • a side link is established between the first terminal device and the second terminal device.
  • the first terminal device may establish a side link with the second terminal device.
  • Step 203a may be performed after step 203 and before step 204.
  • the first terminal device sends a response message to the second terminal device, where the response message is used to indicate that the first terminal device has discovered the second terminal device.
  • the second terminal device receives the response message from the first terminal device.
  • steps 203 and 203a can be understood as a discovery process between the first terminal device and the second terminal device.
  • step 204 specifically includes steps 2004c to 2004d. Steps 2004c to 2004d may be performed after step 203a.
  • the second terminal device sends a second establishment request to the first terminal device.
  • the second establishment request is used to request the establishment of a side link between the first terminal device and the second terminal device.
  • the first terminal device receives the second establishment request from the second terminal device.
  • a side link is established between the first terminal device and the second terminal device.
  • the first terminal device may establish a side link with the second terminal device.
  • Method 3 is introduced below in conjunction with step 2004e.
  • step 204 specifically includes step 2004e.
  • Step 2004e may be performed after step 203.
  • a side link is established between the first terminal device and the second terminal device.
  • the first terminal device sends a third establishment request, where the third establishment request is used to request the establishment of a side link between the first terminal device and the second terminal device.
  • the first terminal device can establish a side link with the second terminal device.
  • the first terminal device sends a response message to the second terminal device.
  • the response message is used to indicate that the first terminal device has discovered the second terminal device.
  • the first terminal device and the second terminal device perform side link positioning and/or ranging.
  • the positioning reference signal may be transmitted between the first terminal device and the second terminal device through a side link, thereby achieving side link positioning and/or ranging.
  • the second terminal device sends the first positioning reference signal to the first terminal device through the side link.
  • the first terminal device measures the first positioning reference signal to obtain a first measurement result.
  • the first terminal device sends the second positioning reference signal to the second terminal device through the side link.
  • the second terminal device measures the second positioning reference signal to obtain a second measurement result.
  • the first measurement result includes at least one of the following: a measurement quantity obtained by measuring the first positioning reference signal by the first terminal device, the position of the second terminal device, and the distance between the second terminal device and the first terminal device.
  • the measurement quantity obtained by measuring the first positioning reference signal by the first terminal device includes at least one of the following: arrival time and angle of arrival of the first positioning reference signal at the first terminal device.
  • the second measurement result includes: the measurement quantity obtained by measuring the second positioning reference signal by the second terminal device, the position of the second terminal device, and the distance between the second terminal device and the first terminal device.
  • the measurement quantity obtained by measuring the second positioning reference signal by the second terminal device includes at least one of the following: arrival time and angle of arrival of the second positioning reference signal at the second terminal device.
  • the embodiment shown in Figure 2 also includes step 206 and/or step 207.
  • the first terminal device sends the first measurement result to the positioning management device.
  • the positioning management device receives the first measurement result from the first terminal device.
  • the second terminal device sends the second measurement result to the positioning management device.
  • the positioning management device receives the second measurement result from the second terminal device.
  • step 206 may only execute step 206, or only step 207, or both step 206 and step 207, which is not specifically limited in this application.
  • step 206 can be executed first, and then step 207; or, step 207 can be executed first, and then step 206; or, Step 206 and step 207 are executed simultaneously according to the situation, and this application does not limit the details.
  • the positioning management device determines the identification information of the first terminal device.
  • the identification information of the first terminal device is used for other terminal devices on the side link where the first terminal device is located to discover the first terminal device.
  • the positioning management device sends a third request to the second terminal device.
  • the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device, and the third request includes the identification information of the first terminal device. It can be seen from this that in the technical solution of the present application, the positioning management device can determine the identification information for other terminal devices to discover the first terminal device, and send a third request to the second terminal device.
  • the third request includes the first terminal device. Identification information of the device.
  • Implement sidelink positioning and/or ranging between the first terminal device and the second terminal device This solves the problem that the identity of the first terminal device used in the sidelink communication process is not aligned with the identity of the terminal device used in the NR positioning process.
  • the sidelink communication method includes:
  • Step 2001 The positioning management device determines the identification information of the first terminal device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process.
  • the other terminal devices refer to terminal devices other than the first terminal device.
  • the identification information of the first terminal device is used for pairing the first terminal device and the second terminal device in the sidelink positioning and/or ranging process.
  • the identification information of the first terminal device is used by the second terminal device in the side link positioning and/or ranging process of the first terminal device.
  • the identification information of the first terminal device serves other terminal devices.
  • the first terminal device is identified in the positioning and/or ranging process.
  • the identification information of the first terminal device in the embodiment shown in FIG. 2 is used to enable other terminal devices to discover the first terminal device during the discovery process.
  • Step 2002 The positioning management device sends the identification information of the first terminal device to the second terminal device.
  • the second terminal device receives the identification information of the first terminal device from the positioning management device.
  • the positioning management device sends a third request to the second terminal device.
  • the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the identification information of the first terminal device and the third request may be sent separately or together.
  • the third request may include the identification information of the first terminal device.
  • the second terminal device sends a side link message to the first terminal device.
  • the sidelink message includes the identity of the first terminal device information.
  • the first terminal device receives the sidelink message sent by the second terminal device.
  • the second terminal device sends a sidelink message.
  • the sidelink message includes identification information of the first terminal device. If the first terminal device detects that the sidelink message includes identification information of the first terminal device, the first terminal device may determine that the sidelink message is sent to the first terminal device. The first terminal device can identify the second terminal device through the sidelink message.
  • the above step 2003 can be understood as an identification process, a matching process or a pairing process between the first terminal device and the second terminal device.
  • this embodiment also includes step 2004 and step 2005, which may be executed after step 2003.
  • a side link is established between the first terminal device and the second terminal device.
  • step 2004 specifically includes steps a to b.
  • Step a The first terminal device sends a first establishment request to the second terminal device.
  • the first establishment request is used to request establishment of a side link between the first terminal device and the second terminal device.
  • the second terminal device receives the first establishment request from the first terminal device.
  • the first terminal device before step 2004, the first terminal device sends a feedback message to the second terminal device.
  • the feedback message is used to indicate that the first terminal device has identified the second terminal device.
  • Step b Establish a side link between the first terminal device and the second terminal device.
  • the second terminal device and the first terminal device implement pairing.
  • the second terminal device identifies the first terminal device.
  • the first terminal device can establish a side link with the second terminal device.
  • this embodiment also includes step 2003a.
  • Step 2003a may be performed after step 2003 and before step 2004.
  • Step 2003a The first terminal device sends a feedback message to the second terminal device, where the feedback message is used to indicate that the first terminal device has identified or matched the second terminal device.
  • the second terminal device receives the feedback message from the first terminal device.
  • the identification or pairing between the first terminal device and the second terminal device is realized through the above-mentioned process from step 2003 to step 2003a.
  • the above steps 2003 and 2003a can be understood as an identification process or a pairing process between the first terminal device and the second terminal device.
  • step 2004 specifically includes steps c to d. Steps c to d may be performed after step 2003a.
  • Step c The second terminal device sends a second establishment request to the first terminal device.
  • the second establishment request is used to request the establishment of a side link between the first terminal device and the second terminal device.
  • the first terminal device receives the second establishment request from the second terminal device.
  • Step d Establish a side link between the first terminal device and the second terminal device.
  • the first terminal device may establish a side link with the second terminal device.
  • step 2004 specifically includes step e.
  • Step e may be performed after step 2003.
  • Step e After the first terminal device receives the side link message in step 2003, a side link is established between the first terminal device and the second terminal device.
  • the first terminal device sends a third establishment request, where the third establishment request is used to request the establishment of a side link between the first terminal device and the second terminal device.
  • the first terminal device can establish a side link with the second terminal device.
  • the first terminal device sends a feedback message to the second terminal device.
  • the feedback message is used to indicate that the first terminal device has identified or matched the second terminal device.
  • the second terminal device After the second terminal device receives the feedback message, the second terminal device also identifies or matches the first terminal device. Thus, identification or pairing between the first terminal device and the second terminal device is achieved.
  • Step 2005 The first terminal device and the second terminal device perform sidelink positioning and/or ranging.
  • Step 2005 is similar to step 205 in the embodiment shown in FIG. 2. For details, please refer to the related introduction.
  • this embodiment also includes step 2006 and/or step 2007.
  • Step 2006 The first terminal device sends the first measurement result to the positioning management device.
  • the positioning management device receives the first measurement result from the first terminal device.
  • Step 2007 The second terminal device sends the second measurement result to the positioning management device.
  • the positioning management device receives the information from the second Second measurement result of the terminal device.
  • Step 2006 and step 2007 are similar to step 206 and step 207 of the embodiment shown in FIG. 2.
  • Step 2006 and step 2007 are similar to step 206 and step 207 of the embodiment shown in FIG. 2.
  • Step 2006 and step 2007 are similar to step 206 and step 207 of the embodiment shown in FIG. 2.
  • the positioning management device determines the identification information of the first terminal device.
  • the first terminal device is used by other terminal devices to identify or match the first terminal device in the positioning and/or ranging process.
  • the positioning management device sends the identification information of the first terminal device to the second terminal device. It can be seen from this that in the technical solution of the present application, the positioning management device can determine the identification information for other terminal devices to identify or match the first terminal device, and send the identification information of the first terminal device to the second terminal device. Thereby triggering the second terminal device to recognize the first terminal device and perform side link positioning and/or ranging with the first terminal device. Implement sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • FIG. 3 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • sidelink communication methods include:
  • the first terminal device sends the identification information of the first terminal device to the positioning management device.
  • the positioning management device receives identification information from the first terminal device.
  • the first terminal device may actively report the identification information of the first terminal device to the positioning management device.
  • the identification information of the first terminal device please refer to the above-mentioned relevant introduction, which will not be described again here.
  • the first terminal device may report the identification information of the first terminal device to the positioning management device based on the request of other devices. Two possible implementations are described below.
  • Step 301a may be performed before step 301.
  • the positioning management device sends the first request to the first terminal device.
  • the first terminal device receives the first request from the positioning management device.
  • the first request is used to request the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the positioning management device may request the first terminal device for identification information of the first terminal device.
  • the first request further includes first indication information, where the first indication information is used to indicate the identification type of the first terminal device reported by the first terminal device.
  • This identification type includes layer 2 identification or application layer identification.
  • identification information of the first terminal device please refer to the relevant introduction above.
  • the embodiment shown in Figure 3 also includes 301b.
  • the second terminal device sends the identification information of the second terminal device to the positioning management device.
  • the positioning management device receives identification information from the second terminal device.
  • the identification information of the second terminal device is similar to the identification information of the first terminal device. For details, please refer to the related introduction of the identification information of the first terminal device, which will not be described again here.
  • step 301b there is no fixed execution order between step 301b and step 301.
  • Step 301 may be executed first, and then step 301b may be executed; or step 301b may be executed first, and then step 301 may be executed; or step 301 and step 301b may be executed at the same time depending on the situation, and this application does not limit the details.
  • the embodiment shown in Figure 3 also includes step 301c.
  • Step 301c may be performed before step 301b.
  • the positioning management device sends a fourth request to the second terminal device.
  • the second terminal device receives the fourth request from the positioning management device.
  • the fourth request is used to request the second terminal device to report the identification information of the second terminal device to the positioning management device.
  • the positioning management device may request the second terminal device for identification information of the second terminal device.
  • the fourth request further includes third indication information, the third indication information being used to indicate the identification type of the second identification of the second terminal equipment reported by the second terminal equipment. Please refer to the previous introduction for identification types.
  • Step 301 and step 301a can be executed first, and then step 301b and step 301c can be executed; or step 301b and step 301c can be executed first, and then step 301 and step 301a can be executed; or, step 301 and step 301a and step 301b and step 301b can be executed simultaneously according to the situation.
  • Step 301c is not specifically limited in this application.
  • Method 2 is introduced below in conjunction with step 301d.
  • the embodiment shown in Figure 3 also includes step 301d.
  • Step 301d may be performed before step 301.
  • the second terminal device sends the second request to the first terminal device.
  • the second request is used to request the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the first terminal device receives the second request from the second terminal device.
  • the second terminal device may request the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the first terminal device may be a neighboring terminal device to the second terminal device.
  • the second request further includes second indication information, and the second indication information is used to instruct the first terminal device to report the identification type of the first terminal device.
  • This identification type includes layer 2 identification or application layer identification.
  • identification information of the first terminal device please refer to the relevant introduction above.
  • FIG. 4 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • sidelink communication methods include:
  • the positioning management device allocates identification information of the first terminal device to the first terminal device.
  • the positioning management device may allocate identification information to the first terminal device based on the positioning service, and the identification information of the first terminal device is associated with the positioning service.
  • the identification information of the first terminal device includes an identification of the first terminal device used for positioning.
  • the identification information of the first terminal device includes a layer 2 identification of the first terminal device for positioning.
  • the positioning management device allocates an application layer identifier to the first terminal device.
  • the application layer identification includes the name of the first terminal device and the address or identification of the positioning management device.
  • the location management device allocates proximity-based service codes (codes) and filters (filters) for processes such as location discovery to the first terminal device and the second terminal device respectively.
  • the principle and form of the proximity-based service codes and the filters are The principle and form of the processor can be compared to the proximity service-based application code and discovery filter assigned in the proximity service-based direct discovery process.
  • the positioning management device sends the identification information of the first terminal device to the first terminal device.
  • the first terminal device receives the identification information of the first terminal device from the positioning management device.
  • the first terminal device obtains the identification information assigned by the positioning management device to the first terminal device.
  • the first terminal device may monitor sidelink messages. If the sidelink message sent by the second terminal device includes the identification information of the first terminal device, the first terminal device can parse the sidelink message.
  • the embodiment shown in Figure 4 also includes step 403 and step 404.
  • the positioning management device allocates the identification information of the second terminal device to the second terminal device.
  • the identification information of the second terminal device is similar to the identification information of the first terminal device. For details, please refer to the related introduction mentioned above.
  • the positioning management device sends the identification information of the second terminal device to the second terminal device.
  • the second terminal device receives the identification information of the second terminal device from the positioning management device.
  • the second terminal device receives the identification information assigned by the positioning management device to the second terminal device.
  • the second terminal device may monitor sidelink messages. If the second terminal device detects that the sidelink message includes the identification information of the second terminal device, the second terminal device decodes the sidelink message.
  • FIG. 5 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • sidelink communication methods include:
  • the second terminal device sends the first instruction information or the first message to the first terminal device.
  • the first instruction information or the first message is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the first terminal device receives the first indication information from the second terminal device.
  • identification information of the first terminal device please refer to the aforementioned introduction about the identification information of the first terminal device.
  • the above-mentioned first message itself has the function of instructing the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the first message may be called a sidelink message, and this application does not limit the name of the first message.
  • the first message is also used to indicate the type of identification information reported by the first terminal device.
  • the first terminal device is instructed to report the identification information of the first terminal device to the positioning management device.
  • the first indication information is also used to indicate the type of identification information reported by the first terminal device.
  • step 501 specifically includes step 501a and step 501b.
  • the second terminal device sends a notification message or a request message to the first terminal device, where the notification message or request message includes the first indication information.
  • the first terminal device receives the notification message or the request message from the second terminal device.
  • the second terminal device sends a notification message or a request message to the first terminal device (the first terminal device is an adjacent terminal device to the second terminal device).
  • the notification message or request message includes identification information of the second terminal device and first indication information.
  • the first instruction information is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device.
  • the first indication information is also used to indicate the type of identification information reported by the first terminal device.
  • the first terminal device If the first terminal device detects that the notification message or the request message includes the identification information of the first terminal device, the first terminal device parses the notification message or the request message.
  • the notification message or request message includes first indication information.
  • the first terminal device parses the notification message or the request message to determine the first indication information.
  • the first terminal device performs the following step 502 according to the first instruction information.
  • Step 501c may be performed after step 501b.
  • the first terminal device sends a response message to the second terminal device.
  • the second terminal device receives the response message from the first terminal device.
  • the response message includes identification information of the first terminal device.
  • the first terminal device may send the response message to the second terminal device. Then, after the second terminal device receives the response message, it means that the second terminal device has also discovered or identified the first terminal device.
  • step 501 specifically includes step 501d.
  • the second terminal device sends a feedback message to the first terminal device.
  • the feedback message includes first indication information.
  • the first terminal device receives the feedback message from the second terminal device.
  • step 501d the embodiment shown in Figure 5 also includes step 501e and step 501f.
  • the second terminal device sends a notification message or a request message to the first terminal device.
  • the first terminal device receives the notification message or the request message from the second terminal device.
  • the above step 501d is similar to the above step 501a, except that the notification message or the request message does not carry the first indication information.
  • the first terminal device If the first terminal device detects that the notification message or the request message includes the identification information of the first terminal device, the first terminal device parses the notification message or the request message.
  • the above step 501f is similar to the above step 501b.
  • the first terminal device sends the identification information of the first terminal device to the positioning management device.
  • the positioning management device receives identification information from the first terminal device.
  • the second terminal device sends the first request to the positioning management device.
  • the first request includes identification information of the first terminal device.
  • the positioning management device receives the first request from the second terminal device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the first request is a mobile originated location request (MO-LR); or, the first request is an LPP message.
  • MO-LR mobile originated location request
  • the first request includes at least one of the following requested by the first terminal device: the absolute position of the first terminal device, the relative position of the first terminal device, the absolute position of the second terminal device, and the relative position of the second terminal device. , the measurement quantity obtained by positioning measurement, and the distance between the first terminal device and the second terminal device.
  • the positioning management device determines the location of the first terminal according to the identification information of the first terminal device sent by the first terminal device and the first terminal included in the first request.
  • the identification information of the device identifies the second terminal device.
  • the side link between the second terminal device and the first terminal device is not suitable for side link positioning.
  • the transmission paths between the first terminal device and the second terminal device are both non-line of sight (NLOS) paths. It is not conducive to side link positioning between the first terminal equipment and the second terminal equipment, and affects the accuracy of side link positioning between the first terminal equipment and the second terminal equipment.
  • the second terminal device may instruct the first terminal device to report the identification information of the first terminal device. Then, the second terminal device requests the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the first request includes identification information of the first terminal device.
  • the location management device can identify the first terminal device based on the identification information sent by the first terminal device and the identification information of the first terminal device carried in the first request. Then, the positioning management device can assist in performing side link positioning and/or ranging on the first terminal device and/or the second terminal device in various ways. Alternatively, the positioning management device may assist in performing NR positioning and/or ranging on the first terminal device and/or the second terminal device in various ways.
  • the positioning management device can separately perform positioning measurements on the first terminal device through the NR positioning process, and separately perform positioning measurements on the second terminal device.
  • the positioning management device may send the measurement results obtained by positioning measurement to the first terminal device and/or the second terminal device.
  • the positioning management device may select a third terminal device and instruct the third terminal device to perform side link positioning and/or ranging with the first terminal device and the second terminal device respectively.
  • the third terminal device may send the measurement results obtained by side link positioning and/or ranging to the first terminal device, the second terminal device and/or the positioning management device.
  • the positioning management device receives identification information from the first terminal device.
  • the positioning management device receives a first request from the second terminal device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device/or the second terminal device.
  • the first request includes the identification of the first terminal device. information.
  • the positioning management device identifies the first terminal device according to the identification information sent by the first terminal device and the first request. It can be seen from this that the positioning management device can identify the first terminal device. This facilitates the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device. This supports the positioning management device to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.
  • FIG. 6 is a schematic diagram of another embodiment of the sidelink communication method according to the embodiment of the present application.
  • sidelink communication methods include:
  • the second terminal device sends the first request to the positioning management device.
  • the first request includes a first type identification of the first terminal device.
  • the positioning management device receives the first request from the second terminal device.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the first type identification of the first terminal device is obtained by the second terminal device based on the side link.
  • the first type identification of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device.
  • the first request is an MO-LR, or the first request is an LPP message.
  • the first type identification of the first terminal device includes a layer 2 identification of the first terminal device or an application layer identification of the first terminal device.
  • the layer 2 identifier includes at least one of the following: a source layer 2 identifier or a target layer 2 identifier.
  • a source layer 2 identifier and target layer 2 identifier please refer to the relevant introduction above.
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, proximity service-based discovery user equipment identification, or restricted proximity service-based application user equipment logo. Please refer to the relevant introduction in the previous terminology for these identifiers.
  • the positioning management device sends a second request to the proximity service function network element, 5G DDNMF, proximity service function server, or V2X application server.
  • the second request includes a first type identification of the first terminal device.
  • the proximity service function network element, 5G DDNMF, proximity service function server, or V2X application server receives the second request from the positioning management device.
  • the second request is used to request the second type identification of the first terminal device.
  • the second type identification of the first terminal device is an identification of the first terminal device identifiable by the positioning management device.
  • the second type identification of the first terminal device includes the SUPI of the first terminal device, GUTI, or IMSI.
  • the positioning management device After the positioning management device receives the first type identification of the first terminal device, the positioning management device cannot identify the first terminal device.
  • the positioning management device may request the second type identification of the first terminal device from the proximity service-based function network element, 5G DDNMF, proximity service-based function server, or V2X application server.
  • the positioning management device requests the second type identification of the first terminal device from the proximity service-based function network element, 5G DDNMF, proximity service-based function server, or V2X application server.
  • the positioning management device may also request the second type identification of the first terminal device from other sidelink-related application servers or network elements.
  • the above example is not a limitation of this application.
  • the positioning management device may also request the second type identification of the first terminal device from other network elements.
  • the network element may be a gateway device, such as a gateway mobile location center (GMLC), etc.
  • GMLC gateway mobile location center
  • the positioning management device sends the second type identification of the first terminal device to the positioning management device based on the proximity service function network element, 5G DDNMF, proximity service function server, or V2X application server.
  • the positioning management device receives the second type identification from the first terminal device based on the proximity service function network element, 5G DDNMF, proximity service function server, or V2X application server.
  • the positioning management device may also receive the second type identification of the first terminal device from other network elements.
  • the network element may be a gateway device, such as a gateway mobile location center (GMLC).
  • GMLC gateway mobile location center
  • the positioning management device identifies the first terminal device according to the second type identifier of the first terminal device.
  • the side link between the second terminal device and the first terminal device is not suitable for side link positioning.
  • the transmission path between the first terminal device and the second terminal device is a non-line-of-sight path, which is not conducive to the side link positioning of the first terminal device and the second terminal device, and affects the first terminal device and the second terminal device.
  • the accuracy of sidelink positioning between The second terminal device may request the positioning management device to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the first request includes a first type identification of the first terminal device.
  • the positioning management device may request the second type identification of the first terminal device from the proximity service-based function network element, 5G DDNMF, proximity service-based function server, or V2X application server based on the first type identification of the first terminal device.
  • the location management device can identify the first terminal device based on the second type identification of the first terminal device.
  • the positioning management device can use and identify the first type identifier of the first terminal device when subsequently initiating a sidelink positioning request.
  • the positioning management device may use the NR positioning process to perform positioning measurements on the first terminal device and/or the second terminal device respectively.
  • the positioning management device may select a third terminal device and instruct the third terminal device to perform side link positioning and/or ranging with the first terminal device and the second terminal device respectively.
  • the third terminal device may send the measurement results obtained by side link positioning and/or ranging to the first terminal device, the second terminal device and/or the positioning management device.
  • the positioning management device receives a first request from the second terminal device, and the first request is used to request positioning measurement and/or ranging on the first terminal device and/or the second terminal device.
  • the first request includes a first type identifier of the first terminal device, and the first type identifier is obtained by the second terminal device based on the sidelink.
  • the positioning management device sends a second request to the proximity service function, 5G DDNMF, proximity service function server or V2X application server, where the second request is used to request the first type identification of the first terminal device.
  • the second request includes the first type identification of the first terminal device.
  • the positioning management device receives the second type identification of the first terminal device sent from the proximity service function, 5G DDNMF, proximity service function server or V2X application server; the positioning management device identifies the first terminal device according to the second type identification of the first terminal device. Terminal Equipment. This facilitates the positioning management device to perform positioning measurement and/or ranging for the first terminal device and/or the second terminal device.
  • FIG. 7 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • the communication device 700 includes a processing module 701 and a transceiver module 702.
  • the communication device 700 when the communication device 700 includes a first terminal device, or a chip in the first terminal device, the communication device 700 may be used to perform the steps performed by the first terminal device in the embodiments shown in FIGS. 2 to 4 .
  • the communication device 700 is used to perform the following solutions:
  • the processing module 701 is used to determine the identification information of the communication device 700.
  • the identification information of the communication device 700 is used for the terminal equipment on the side link where the communication device 700 is located to discover the communication device 700;
  • the transceiver module 702 is configured to send identification information of the communication device 700 to the positioning management device.
  • the transceiver module 702 is also used to:
  • a first request is received from the positioning management device.
  • the first request is used to request the communication device 700 to report identification information of the communication device 700 .
  • the first request further includes first indication information, and the first indication information is used to indicate the identification type reported by the communication device 700, and the identification type includes a layer 2 identification or an application layer identification.
  • the transceiver module 701 is also used to:
  • the second request further includes second indication information, where the second indication information is used to indicate the identification type reported by the communication device 700, where the identification type includes a layer 2 identification or an application layer identification.
  • processing module 702 is also used to:
  • the transceiver module 701 is also used for:
  • the sidelink message includes the identification information of the communication device 700, receive the sidelink message from the second terminal device;
  • the processing module 702 is also used to:
  • the transceiver module 701 is also used to:
  • the first measurement result is sent to the positioning management device.
  • the first measurement result is obtained by performing side link positioning and/or ranging between the communication device 700 and the second terminal device.
  • the identification information of the communication device 700 includes the layer 2 identification or the application layer identification of the communication device 700 .
  • the layer 2 identification includes at least one of the following: source layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or Discover user device identity based on proximity services.
  • the identification information of the communication device 700 further includes at least one of the following: the validity time and update period of the layer 2 identification or application layer identification of the communication device 700 .
  • FIG. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 includes a processing module 801 and a transceiver module 802.
  • the communication device 800 can be used to perform all or part of the steps performed by the second terminal device in the embodiments shown in FIGS. 2 to 4, For details, reference may be made to the relevant descriptions in the method embodiments shown in FIGS. 2 to 4 above.
  • the communication device 800 is used to perform the following solutions:
  • the transceiver module 802 is used to receive a third request from the positioning management device.
  • the third request is used to request side link positioning and/or ranging between the first terminal device and the communication device 800.
  • the third request includes the first The identification information of the terminal device, the identification information of the first terminal device is assigned by the positioning management device to the first terminal device, or is reported by the first terminal device to the positioning management device; sending a side link message to the first terminal device,
  • the sidelink message includes identification information of the first terminal device;
  • the processing module 801 is used to establish a side link connection with the first terminal device; and perform side link positioning and/or ranging with the first terminal device.
  • the transceiver module 802 is also used to:
  • the second measurement result is sent to the positioning management device.
  • the second measurement result is obtained by performing sidelink positioning and/or ranging between the communication device 800 and the first terminal device.
  • the transceiver module 802 is also used to:
  • the second request is used to request the first terminal device to report the first terminal device to the positioning management device. identification information.
  • the second request further includes second indication information, and the second indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • the identification information of the first terminal device includes a layer 2 identification or an application layer identification of the first terminal device.
  • the layer 2 identification includes at least one of the following: source layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or Discover user device identity based on proximity services.
  • the identification information of the first terminal device further includes at least one of the following: the validity time and update period of the source layer 2 identification or target layer 2 identification of the first terminal device.
  • FIG. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application.
  • the communication device 900 includes a processing module 901 and a transceiver module 902.
  • the communication device 900 when the communication device 900 includes a positioning management device, or a chip within the positioning management device, the communication device 900 may be used to perform all or part of the steps performed by the positioning management device in the embodiments shown in FIGS. 2 to 4 . , for details, reference may be made to the relevant descriptions in the method embodiments shown in FIGS. 2 to 4 above.
  • the communication device 900 is used to perform the following solutions:
  • the processing module 901 is used to obtain the identification information of the first terminal device, and the identification information of the first terminal device is used by the second terminal device to discover the first terminal device;
  • the transceiver module 902 is configured to send a third request to the second terminal device.
  • the third request is used to request side link positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes a third request. Identification information of a terminal device.
  • the transceiver module 902 is also used to:
  • the transceiver module 902 is also used to:
  • the transceiver module 902 is also used to:
  • the first request further includes first indication information, and the first indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • processing module 901 is specifically used to:
  • the transceiver module 902 is also used to:
  • the identification information of the first terminal device includes a layer 2 identification or an application layer identification of the first terminal device.
  • the layer 2 identification includes at least one of the following: source layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or Discover user device identity based on proximity services.
  • the identification information of the first terminal device further includes at least one of the following: the validity time and update period of the source layer 2 identification or target layer 2 identification of the first terminal device.
  • the communication device 900 can also be used to perform all or part of the steps performed by the positioning management device in the embodiment shown in FIG. 5 .
  • the communication device 900 can also be used to perform the following solutions:
  • Transceiver module 902 configured to receive identification information from the first terminal device; receive a first request from the second terminal device, the first request is used to request positioning measurement and/or on the first terminal device/or the second terminal device Ranging, the first request includes identification information of the first terminal device;
  • the processing module 901 is configured to identify the first terminal device according to the identification information sent by the first terminal device and the first request.
  • the communication device 900 can also be used to perform all or part of the steps performed by the positioning management device in the embodiment shown in FIG. 6 .
  • the communication device 900 can also be used to perform the following solutions:
  • Transceiver module 902 configured to receive a first request from a second terminal device.
  • the first request is used to request positioning measurement and/or ranging of the first terminal device/or the second terminal device.
  • the first request includes the first terminal device.
  • the first type identification of the device which is obtained by the second terminal device based on the side link; sends a second request to the proximity service function, 5G DDNMF, proximity service function server or car-to-everything V2X application server , the second request is used to request the second type identification of the first terminal device, the second request includes the first type identification of the first terminal equipment; receiving information from the proximity service-based function, 5G DDNMF, proximity service-based function server or V2X The second type identification of the first terminal device sent by the application server;
  • the processing module 901 is configured to identify the first terminal device according to the second type identification of the first terminal device.
  • the communication device 900 when the communication device 900 includes a positioning management device, or a chip in the positioning management device, the communication device 900 can be used to perform all or part of the steps performed by the positioning management device in the above steps 2001 to 2007. For details, please refer to the above steps. Relevant descriptions in steps 2001 to 2007.
  • the processing module 901 is used to determine the identification information of the first terminal device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process;
  • the transceiver module 902 is configured to send the identification information of the first terminal device to the second terminal device.
  • the transceiver module 902 is specifically used to:
  • the third request is used to request sidelink positioning and/or ranging between the first terminal device and the second terminal device.
  • the third request includes identification information of the first terminal device. .
  • the transceiver module 902 is specifically used to:
  • the transceiver module 902 is specifically used to:
  • the transceiver module 902 is also used to:
  • the first request further includes first indication information, and the first indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • processing module 901 is specifically used to:
  • the transceiver module 902 is also used to:
  • FIG. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.
  • the communication device 1000 includes a transceiver module 1001.
  • the communication device 1000 also includes a processing module 1002.
  • the communication device 1000 when the communication device 1000 includes a first terminal device, or a chip in the first terminal device, the communication device 1000 may be used to perform all or part of the steps performed by the first terminal device in the embodiment shown in FIG. 5 . , for details, reference may be made to the relevant description in the method embodiment shown in Figure 5 above.
  • the communication device 1000 is used to perform the following solutions:
  • the transceiver module 1001 is configured to receive the first instruction information or the first message from the second terminal device.
  • the first instruction information or the first message is used to instruct the communication device 1000 to report the identification information of the communication device 1000 to the positioning management device; to the positioning management device;
  • the management device sends the identification information of the communication device 1000 .
  • the first indication information or the first message is also used to indicate the label of the identification information reported by the communication device 1000.
  • Identification type including layer 2 identification or application layer identification.
  • the identification information of the communication device 1000 includes the layer 2 identification or the application layer identification of the communication device 1000 .
  • the layer 2 identification includes at least one of the following: source layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: a proximity service application layer identifier, a car-to-everything application layer identifier, an identifier for a proximity service discovery process, or a ranging application layer identifier.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or Discover user device identity based on proximity services.
  • the identification information of the communication device 1000 further includes at least one of the following: the validity time and update period of the layer 2 identification or the target layer 2 identification of the communication device 1000 .
  • the communication device 1000 when the communication device 1000 includes a first terminal device, or a chip in the first terminal device, the communication device 1000 can be used to perform all or part of the steps performed by the first terminal device in the above steps 2001 to 2007. Specifically, Refer to the relevant descriptions in the above steps 2001 to 2007.
  • the communication device 1000 is used to perform the following solutions:
  • the transceiver module 1001 is used to send the identification information of the communication device 1000 to the positioning management device.
  • the identification information of the communication device 1000 is used by other terminal devices to identify the communication device 1000 in the positioning and/or ranging process; receiving data from the second terminal device
  • the sidelink message includes the identification information of the communication device 1000 .
  • the processing module 1002 is configured to establish a side link connection with the second terminal device; and perform side link positioning and/or ranging with the second terminal device.
  • the transceiver module 1001 is also used to:
  • the first measurement result is sent to the positioning management device.
  • the first measurement result is obtained by performing side link positioning and/or ranging between the communication device 1000 and the second terminal device.
  • the transceiver module 1001 is also used to:
  • a first request is received from the positioning management device.
  • the first request is used to request the communication device 1000 to report identification information of the communication device 1000 .
  • the first request further includes first indication information.
  • the first indication information is used to indicate the identification type reported by the communication device 1000.
  • the identification type includes a layer 2 identification or an application layer identification.
  • the transceiver module 1001 is also used to:
  • a second request sent from the second terminal device is received.
  • the second request is used to request the communication device 1000 to report identification information of the communication device 1000 .
  • the second request further includes second indication information.
  • the second indication information is used to indicate the identification type reported by the communication device 1000.
  • the identification type includes a layer 2 identification or an application layer identification.
  • the communication device provided by this application is described below. Please refer to Figure 11, which is a schematic structural diagram of a communication device 1100 according to an embodiment of the present application.
  • the communication device 1100 includes a transceiver module 1101.
  • the communication device 1100 also includes a processing module 1102.
  • the communication device 1100 when the communication device 1100 includes a second terminal device, or a chip in the second terminal device, the communication device 1100 may be used to perform all or part of the steps performed by the second terminal device in the embodiment shown in FIG. 5 . , for details, reference may be made to the relevant description in the method embodiment shown in Figure 5 above.
  • the communication device 1100 is used to perform the following solutions:
  • the transceiver module 1101 is configured to send the first instruction information or the first message to the first terminal device.
  • the first instruction information or the first message is used to instruct the first terminal device to report the identification information of the first terminal device to the positioning management device;
  • the positioning management device sends a first request.
  • the first request is used to request positioning measurement and/or ranging on the first terminal device/or communication device 1100.
  • the first request includes identification information of the first terminal device.
  • the first indication information or the first message is also used to indicate the identification type of the identification information reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • the identification information of the first terminal device includes a layer 2 identification or an application layer identification of the first terminal device.
  • the layer 2 identification includes at least one of the following: source layer 2 identification, or target layer 2 identification;
  • the application layer identifier includes at least one of the following: application layer identifier for proximity services, vehicle-to-everything application layer identifier, application layer identifier for proximity services The identification of the service discovery process, or the identification of the ranging application layer.
  • the identification used for the proximity service-based discovery process includes at least one of the following: proximity service-based application identification, application identification, user information identification, restricted proximity service-based application user equipment identification, or Discover user device identity based on proximity services.
  • the identification information of the first terminal device further includes at least one of the following: the validity time and update period of the source layer 2 identification or target layer 2 identification of the first terminal device.
  • the communication device 1100 when the communication device 1100 includes a second terminal device, or a chip in the second terminal device, the communication device 1100 can be used to perform all or part of the steps performed by the second terminal device in the above steps 2001 to 2007. Specifically, Refer to the relevant descriptions in steps 2001 to 2007.
  • the communication device 1100 is used to perform the following solutions:
  • the transceiver module 1101 is configured to receive the identification information of the first terminal device from the positioning management device.
  • the identification information of the first terminal device is used by other terminal devices to identify the first terminal device in the positioning and/or ranging process; to the first terminal device;
  • the terminal device sends a sidelink message, where the sidelink message includes identification information of the first terminal device.
  • the transceiver module 1101 is also used to:
  • the second request further includes second indication information, and the second indication information is used to indicate the identification type reported by the first terminal device, and the identification type includes a layer 2 identification or an application layer identification.
  • the transceiver module 1101 is specifically used to:
  • a third request is received from the positioning management device, the third request includes identification information of the first terminal device, and the third request is used to request sidelink positioning and/or ranging between the first terminal device and the communication device 1100 .
  • the processing module 1102 is configured to establish a side link connection with the first terminal device; and perform side link positioning and/or ranging with the first terminal device.
  • the transceiver module 1101 is also used to:
  • the second measurement result is sent to the positioning management device.
  • the second measurement result is obtained by performing side link positioning and/or ranging between the communication device 1100 and the first terminal device.
  • FIG. 12 A possible structural schematic diagram in which the communication device is a terminal device is shown below in FIG. 12 .
  • Figure 12 shows a simplified structural diagram of a terminal device.
  • a mobile phone is used as an example of the terminal device.
  • the terminal equipment includes a processor, memory, radio frequency circuit, antenna and input and output device.
  • the processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, process data of software programs, etc.
  • Memory is mainly used to store software programs and data.
  • Radio frequency circuits are mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • FIG. 12 For ease of illustration, only one memory and processor are shown in Figure 12. In an actual terminal device product, there may be one or more processors and one or more memories. Memory can also be called storage media or storage devices. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1210 and a processing unit 1220.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver device, etc.
  • the processing unit can also be called a processor, a processing board, a processing module, a processing device, etc.
  • the devices used to implement the receiving function in the transceiving unit 1210 can be regarded as receiving units, and the devices used in the transceiving unit 1210 used to implement the transmitting function can be regarded as sending units. That is, the transceiving unit 1210 includes a receiving unit and a transmitting unit.
  • the transceiver unit may sometimes also be called a transceiver, transceiver, or transceiver circuit.
  • the receiving unit may also be called a receiver, receiver, or receiving circuit.
  • the sending unit may sometimes be called a transmitter, transmitter or transmitting circuit.
  • transceiver unit 1210 is used to perform the sending operation and the receiving operation of the first terminal device or the second terminal device in the above method embodiment
  • processing unit 1220 is used to perform the first terminal device or the second terminal device in the above method embodiment.
  • Other operations besides sending and receiving operations.
  • the chip When the terminal device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit or a communication interface;
  • the processing unit may be a processor or microprocessor, integrated circuit or logic circuit integrated on the chip.
  • FIG. 13 is another schematic structural diagram of a communication device 1300 in an embodiment of the present application.
  • Communication device 1300 includes processor 1301.
  • the communication device 1300 also includes a memory 1302 and a transceiver 1303.
  • the processor 1301, the memory 1302 and the transceiver 1303 are respectively connected through a bus, and computer instructions are stored in the memory.
  • the communication device 1300 When the communication device 1300 includes a positioning management device, or a chip within the positioning management device, the communication device 1300 is configured to perform the steps performed by the positioning management device in the embodiments shown in FIGS. 2 to 6 .
  • An embodiment of the present application also provides a communication system.
  • the communication system includes a second terminal device and a positioning management device.
  • the second terminal device is used to perform all or part of the steps performed by the second terminal device in the embodiment shown in FIGS. 2 to 4 and the embodiment shown in steps 2001 to 2007.
  • the positioning management device is used to perform all or part of the steps performed by the positioning management device in the embodiment shown in FIGS. 2 to 4 and the embodiment shown in steps 2001 to 2007.
  • the communication system also includes a first terminal device, and the first terminal device is configured to perform the steps performed by the first terminal device in the embodiment shown in FIGS. 2 to 4 and the embodiment shown in steps 2001 to 2007. All or part of the steps.
  • An embodiment of the present application also provides a communication system.
  • the communication system includes a first terminal device, a second terminal device and a positioning management device.
  • the first terminal device is used to perform all or part of the steps performed by the first terminal device in the embodiment shown in FIG. 5 .
  • the second terminal device is used to perform all or part of the steps performed by the second terminal device in the embodiment shown in FIG. 5 .
  • the positioning management device is used to perform all or part of the steps performed by the positioning management device in the embodiment shown in FIG. 5 .
  • An embodiment of the present application also provides a communication system.
  • the communication system includes a second terminal device and a positioning management device.
  • the second terminal device is used to perform all or part of the steps performed by the second terminal device in the embodiment shown in FIG. 6 .
  • the positioning management device is used to perform all or part of the steps performed by the positioning management device in the embodiment shown in FIG. 6 .
  • Embodiments of the present application also provide a computer program product including computer instructions, which when run on a computer, causes the computer to execute the embodiments shown in FIGS. 2 to 6 and the implementation shown in steps 2001 to 2007. method in the example.
  • Embodiments of the present application also provide a computer-readable storage medium, which includes computer instructions.
  • the computer instructions When the computer instructions are run on a computer, the computer executes the embodiments shown in FIGS. 2 to 6 and the above steps 2001 to 2007. Methods in the examples shown.
  • Embodiments of the present application also provide a chip device, including a processor for calling a computer program or computer instructions stored in a memory, so that the processor executes the above embodiments shown in FIGS. 2 to 6 and the above steps 2001 to 2001. The method in the embodiment shown in 2007.
  • the processor is coupled to the memory through an interface.
  • the chip device also includes a memory, and computer programs or computer instructions are stored in the memory.
  • the processor mentioned in any of the above places can be a general central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above-mentioned Figures 2 to The integrated circuit for executing the program of the method in the embodiment shown in FIG. 6 and the above-mentioned steps 2001 to 2007.
  • the memory mentioned in any of the above places can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc.
  • the disclosed systems, devices and methods can be used in other ways accomplish.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium and includes a number of instructions to A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请实施例公开了一种侧行链路通信方法以及相关装置，本申请实施例提供的方法包括：第一终端设备向定位管理设备发送所述第一终端设备的标识信息，所述第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；所述第一终端设备接收来自第二终端设备的侧行链路消息，所述侧行链路消息包括所述第一终端设备的标识信息。实现第二终端设备对第一终端设备的识别，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。第二终端设备中的第一终端设备的标识信息可以是定位管理设备向第二终端设备提供的，从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间的侧行链路定位和/或测距。

Description

侧行链路通信方法以及相关装置
本申请要求于2022年07月28日提交中国专利局，申请号为202210901647.6，发明名称为“侧行链路通信方法以及相关装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种侧行链路通信方法以及相关装置。
背景技术
终端设备之间可以通过邻近通信5(ProSe communication 5，PC5)接口连接，并通过侧行链路(sidelink，SL)通信。例如，终端设备1通过侧行链路向终端设备2发送信号。然而，如何触发侧行链路上的两个终端设备之间做定位测量和/或测距，是值得考虑的问题。
发明内容
本申请提供了一种侧行链路通信方法以及相关装置，用于第二终端设备识别第一终端设备，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
本申请第一方面提供一种侧行链路通信方法，包括：
第一终端设备向定位管理设备发送第一终端设备的标识信息，该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备。然后，第一终端设备接收来自第二终端设备的侧行链路消息，该侧行链路消息包括该第一终端设备的标识信息。
上述技术方案中，第一终端设备可以向定位管理设备上报第一终端设备的标识信息。第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备。第一终端设备接收来自第二终端设备的侧行链路消息，该侧行链路消息包括该第一终端设备的标识信息。其中，该第二终端设备上的第一终端设备的标识信息是定位管理设备向第二终端设备提供的，从而实现第二终端设备识别第一终端设备，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
本申请第二方面提供一种侧行链路通信方法，包括：
第一终端设备确定第一终端设备的标识信息，第一终端设备的标识信息用于第一终端设备所在的侧行链路上的终端设备发现第一终端设备；第一终端设备向定位管理设备发送第一终端设备的标识信息。
上述技术方案中，第一终端设备可以向定位管理设备上报第一终端设备的标识信息。第一终端设备的标识信息用于第一终端设备所在的侧行链路上的终端设备发现第一终端设备。从而便于定位管理设备向第二终端设备对第一终端设备进行侧行链路定位的请求时，可以在该请求中包含该第一终端设备的标识信息。从而触发第二终端设备识别和发现该第一终端设备。从而实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
基于第一方面或第二方面，一种可能的实现方式中，第一终端设备向定位管理设备发送第一终端设备的标识信息之前，方法还包括：
第一终端设备接收来自定位管理设备的第一请求，第一请求用于请求第一终端设备上报第一终端设备的标识信息。
在该实现方式中，当定位管理设备对第一终端设备有定位需求时，定位管理设备可以主动请求第一终端设备上报第一终端设备的标识信息。从而便于定位管理设备在向第二终端设备下发定位请求时，可以在该定位请求中携带该第一终端设备的标识信息。从而触发第二终端设备发现或识别该第一终端设备。从而实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
基于第一方面或第二方面，一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识(layer-2 ID)或应用层标识(application layer ID)。
在该实现方式中，第一请求还携带第一指示信息，用于指示第一终端设备上报的标识类型，以便于定位管理设备请求第二终端设备进行侧行链路定位和/或测距。进一步的，标识类型包括层2标识或应用层标识，提供了多种可能选择的标识类型，有利于方案的实施。第二终端设备通过层2标识或应用层标识可以实现对第一终端设备的发现或识别。
基于第一方面或第二方面，一种可能的实现方式中，第一终端设备向定位管理设备发送第一终端设备的标识信息之前，方法还包括：
第一终端设备接收来自第二终端设备发送的第二请求，第二请求用于请求第一终端设备上报第一终端设备的标识信息。
在该实现方式中，当第二终端设备有定位需求时，第二终端设备可以请求第一终端设备向定位管理设备上报第一终端设备的标识信息，从而便于触发定位管理设备请求第一终端设备与第二终端设备进行侧行链路定位和/或测距。
基于第一方面或第二方面，一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
在该实现方式中，第二请求还包括第二指示信息，用于指示第一终端设备上报的标识类型，以便于定位管理设备请求第二终端设备进行侧行链路定位和/或测距。进一步的，标识类型包括层2标识或应用层标识，提供了多种可能选择的标识类型，有利于方案的实施。第二终端设备通过层2标识或应用层标识可以实现对第一终端设备的发现或识别。
基于第二方面，一种可能的实现方式中，方法还包括：
第一终端设备接收来自第二终端设备发送的侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
在该实现方式中，第一终端设备监测侧行链路消息，当监测到第二终端设备发送的侧行链路消息包括第一终端设备的标识信息时，第一终端设备可以确定该侧行链路消息是发给第一终端设备。因此，第一终端设备可以接收第二终端设备发送的侧行链路消息，以实现第二终端设备发现或识别第一终端设备。
基于第一方面或第二方面，一种可能的实现方式中，方法还包括：
第一终端设备与第二终端设备建立侧行链路连接；第一终端设备与第二终端设备进行侧行链路定位和/或测距。
在该实现方式中，第一终端设备可以与第二终端设备建立侧行链路连接，并通过第一终端设备与第二终端设备之间的侧行链路进行侧行链路定位和/或测距。从而实现侧行链路定位和/或测距。
基于第一方面或第二方面，一种可能的实现方式中，方法还包括：
第一终端设备向定位管理设备发送第一测量结果，第一测量结果是第一终端设备与第二终端设备进行侧行链路定位和/或测距得到的。
在该实现方式中，第一终端设备与第二终端设备进行侧行链路定位和/或测距得到第一测量结果，并向定位管理设备发送第一测量结果。从而实现定位管理设备对第一终端设备和/或第二终端设备的定位测量。
本申请第三方面提供一种侧行链路通信方法，包括：
第二终端设备接收来自定位管理设备的第一终端设备的标识信息，第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备；第二终端设备向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
上述技术方案中，第二终端设备接收来自定位管理设备的第一终端设备的标识信息。而该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备。从而触发第二终端设备向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息，以实现第二终端设备识别该第一终端设备。便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
本申请第四方面提供一种侧行链路通信方法，包括：
第二终端设备接收来自定位管理设备的第三请求，第三请求用于请求第一终端设备与第二终端设备 之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息，第一终端设备的标识信息是定位管理设备为第一终端设备分配的，或者是第一终端设备向定位管理设备上报的；第二终端设备向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息；第二终端设备与第一终端设备建立侧行链路连接，第二终端设备与第一终端设备之间进行侧行链路定位和/或测距。
上述技术方案中，第二终端设备接收来自定位管理设备的第三请求，第三请求包括第一终端设备的标识信息。从而触发向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息，并与第一终端设备建立侧行链路连接。然后，第二终端设备可以基于该侧行链路与第一终端设备之间进行侧行链路定位和/或测距。实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
基于第三方面或第四方面，一种可能的实现方式中，第二终端设备接收来自定位管理设备的第三请求之前，方法还包括：
第二终端设备向第一终端设备发送第二请求，第二请求用于请求第一终端设备向定位管理设备上报第一终端设备的标识信息。
在该实现方式中，当第二终端设备有定位需求时，第二终端设备可以请求第一终端设备向定位管理设备上报第一终端设备的标识信息，从而便于触发定位管理设备请求第一终端设备与第二终端设备进行侧行链路定位和/或测距。
基于第三方面或第四方面，一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
在该实现方式中，第二请求还包括第二指示信息，用于指示第一终端设备上报的标识类型，以便于定位管理设备请求第二终端设备进行侧行链路定位和/或测距。进一步的，标识类型包括层2标识或应用层标识，提供了多种可能选择的标识类型，有利于方案的实施。第二终端设备通过层2标识或应用层标识可以实现对第一终端设备的发现或识别。
基于第三方面，一种可能的实现方式中，第二终端设备接收来自定位管理设备的第一终端设备的标识信息，包括：
第二终端设备接收来自定位管理设备的第三请求，第三请求包括第一终端设备的标识信息，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
在该实现方式中，第二终端设备接收来自定位管理设备的第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。从而使得第二终端设备可以在识别第一终端设备之后，与第一终端设备进行侧行链路定位和/或测距，从而支持定位管理设备发起第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
基于第三方面，一种可能的实现方式中，方法还包括：
第二终端设备与第一终端设备建立侧行链路连接；第二终端设备与第一终端设备进行侧行链路定位和/或测距。
在该实现方式中，第二终端设备可以与第一终端设备建立侧行链路连接，并通过第一终端设备与第二终端设备之间的侧行链路进行侧行链路定位和/或测距。从而实现侧行链路定位和/或测距。
基于第三方面或第四方面，一种可能的实现方式中，方法还包括：
第二终端设备向定位管理设备发送第二测量结果，第二测量结果是第二终端设备与第一终端设备之间进行侧行链路定位和/或测距得到的。
在该实现方式中，第二终端设备与第一终端设备进行侧行链路定位和/或测距得到第二测量结果，并向定位管理设备发送第二测量结果。从而实现定位管理设备对第一终端设备和/或第二终端设备的定位测量。
本申请第五方面提供一种侧行链路通信方法，包括：
定位管理设备确定第一终端设备的标识信息，该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；定位管理设备向第二终端设备发送第一终端设备的标识信息。
上述技术方案中，定位管理设备可以确定用于其他终端设备在定位和/或测距流程中识别第一终端 设备的标识信息。然后，定位管理设备向第二终端设备发送第一终端设备的标识信息。从而便于第二终端设备通过该第一终端设备的标识信息识别该第一终端设备。便于第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。解决了侧行链路的终端设备之间的识别或匹配过程中采用的第一终端设备的标识与新空口(new radio，NR)定位流程采用的终端设备的标识不对齐的问题。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
本申请第六方面提供一种侧行链路通信方法，包括：
定位管理设备确定第一终端设备的标识信息，第一终端设备的标识信息用于第一终端设备所在的侧行链路上的其他终端设备发现该第一终端设备；定位管理设备向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
上述技术方案中，定位管理设备可以确定用于第一终端设备所在的侧行链路上的其他终端设备发现该第一终端设备的标识信息，并向第二终端设备发送第三请求，该第三请求包括第一终端设备的标识信息。从而触发第一终端设备发现第二终端设备，并与第二终端设备之间执行侧行链路定位和/或测距，实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。解决了侧行链路的通信流程采用的第一终端设备的标识与新空口(new radio，NR)定位流程采用的终端设备的标识不对齐的问题。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
基于第五方面，一种可能的实现方式中，定位管理设备向第二终端设备发送第一终端设备的标识信息，包括：
定位管理设备向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
在该实现方式中，定位管理设备可以通过第三请求下发第一终端设备的标识信息，该第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。从而实现定位管理设备发起第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
基于第五方面或第六方面，一种可能的实现方式中，方法还包括：
定位管理设备接收来自第一终端设备的第一测量结果和/或来自第二终端设备的第二测量结果，第一测量结果和/或第二测量结果是第一终端设备与第二终端设备之间进行侧行链路定位和/或测距得到的。
在该实现方式中，定位管理设备可以接收第一测量结果和/或第二测量结果，从而实现定位管理设备对第一终端设备和/或第二终端设备的定位测量。
基于第五方面或第六方面，一种可能的实现方式中，定位管理设备确定第一终端设备的标识信息包括：定位管理设备接收来自第一终端设备的标识信息。
上述技术方案中，定位管理设备可以接收来自第一终端设备的标识信息。第一终端设备的标识信息用于第一终端设备。从而便于定位管理设备向第二终端设备对第一终端设备进行侧行链路定位的请求时，可以在该请求中包含该第一终端设备的标识信息。从而触发第二终端设备识别该第一终端设备或者说触发第二终端设备与第一终端设备配对。便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
基于第五方面或第六方面，一种可能的实现方式中，定位管理设备接收来自第一终端设备的标识信息之前，方法还包括：
定位管理设备向第一终端设备发送第一请求，第一请求用于请求第一终端设备上报第一终端设备的标识信息。
在该实现方式中，当定位管理设备对第一终端设备有定位需求时，定位管理设备可以主动请求第一终端设备上报第一终端设备的标识信息。从而便于定位管理设备在向第二终端设备下发定位请求时，可以在该定位请求中携带该第一终端设备的标识信息。便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
基于第五方面或第六方面，一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息 用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
在该实现方式中，第一请求还携带第一指示信息，用于指示第一终端设备上报的标识类型，以便于定位管理设备请求第二终端设备进行侧行链路定位和/或测距。
基于第五方面或第六方面，一种可能的实现方式中，定位管理设备确定第一终端设备的标识信息，包括：定位管理设备为第一终端设备分配第一终端设备的标识信息；
方法还包括：定位管理设备向第一终端设备发送第一终端设备的标识信息。
在该实现方式中，定位管理设备可以为第一终端设备分配标识信息。从而便于定位管理设备在向第二终端设备下发定位请求时，可以在该定位请求中携带该第一终端设备的标识信息。从而触发第二终端设备识别该第一终端设备。从而实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
本申请第七方面提供一种侧行链路通信方法，包括：
第一终端设备接收来自定位管理设备的第一终端设备的标识信息；该第一终端设备的标识信息是定位管理设备为第一终端设备分配的；第一终端设备接收来自第二终端设备的侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
上述技术方案中，第一终端设备接收定位管理设备为其分配的标识信息。然后，第一终端设备接收来自第二终端设备的侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。实现第二终端设备识别第一终端设备，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
基于第七方面，一种可能的实现方式中，方法还包括：
第一终端设备与第二终端设备建立侧行链路；与第二终端设备进行侧行链路定位和/或测距。
在该实现方式中，第一终端设备可以与第二终端设备建立侧行链路连接，并通过第一终端设备与第二终端设备之间的侧行链路进行侧行链路定位和/或测距。从而实现侧行链路定位和/或测距。
本申请第八方面提供一种侧行链路通信方法，包括：
第一终端设备接收来自第二终端设备的第一指示信息或第一消息，第一指示信息或第一消息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息；第一终端设备向定位管理设备发送第一终端设备的标识信息。
上述技术方案中，第二终端设备可以指示第一终端设备(第一终端设备为第二终端设备的临近终端设备)向定位管理设备上报第一终端设备的标识信息。然后，第一终端设备向定位管理设备发送第一终端设备的标识信息。从而便于定位管理设备识别该第一终端设备。从而便于定位管理设备对第一终端设备和/或第二终端设备进行定位测量和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间的定位测量和/或测距。
本申请第九方面提供一种侧行链路通信方法，包括：
第二终端设备向第一终端设备发送第一指示信息或第一消息，第一指示信息或第一消息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息；第二终端设备向定位管理设备发送第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的标识信息。
上述技术方案中，第二终端设备可以指示第一终端设备(第一终端设备为第二终端设备的临近终端设备)向定位管理设备上报第一终端设备的标识信息。第二终端设备向定位管理设备发送第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距。因此，定位管理设备可以识别该第一终端设备。从而便于定位管理设备对第一终端设备和/或第二终端设备进行定位测量和/或测距。实现支持定位管理设备发起或辅助第一终端设备与第二终端设备之间的定位测量和/或测距。
基于第八方面或第九方面，一种可能的实现方式中，第一指示信息或第一消息用于指示第一终端设备上报的标识信息的标识类型，标识类型包括层2标识或应用层标识。
在该实现方式中，该第一指示信息或第一消息还可以指示第一终端设备上报的标识类型。从而便于后续定位管理设备识别侧行链路上该第一终端设备使用的标识，便于为第一终端设备进行侧行链路定位和/或测距。
本申请第十方面提供一种侧行链路通信方法，包括：
定位管理设备接收来自第一终端设备的标识信息；定位管理设备接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的标识信息；定位管理设备根据第一终端设备发送的标识信息和第一请求识别第一终端设备。
上述技术方案中，定位管理设备根据第一终端设备发送的标识信息和第一请求识别第一终端设备。从而便于定位管理设备基于第一请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。实现支持定位管理设备发起或辅助第一终端设备与第二终端设备之间的定位测量和/或测距。
基于第一方面至第十方面中任一方面，一种可能的实现方式中，第一终端设备的标识信息包括第一终端设备的层2标识、或应用层标识。
基于第一方面至第十方面中任一方面，一种可能的实现方式中，层2标识包括以下至少一项：源层2标识(source layer-2 ID)、或目标层2标识(destination layer-2 ID)；
应用层标识包括以下至少一项：基于邻近服务应用层标识(ProSe applicaion layer ID)、车到万物应用层标识(vehicle toeverything applicaion layer ID)、用于基于邻近服务发现流程的标识、或测距应用层标识。
基于第一方面至第十方面中任一方面，一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识(ProSe application ID),应用标识(application ID)，用户信息标识(user info ID)，受限基于邻近服务应用用户设备标识(restricted ProSe application UE ID，RPAUID)，或基于邻近服务发现用户设备标识(ProSe discovery UE ID，PDUID)。
基于第一方面至第十方面中任一方面，一种可能的实现方式中，第一终端设备的标识信息还包括以下至少一项：第一终端设备的源层2标识或目标层2标识的有效时间、更新周期。
本申请第十一方面提供一种侧行链路通信方法，包括：
定位管理设备接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备和/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的第一类型标识，第一类型标识是第二终端设备基于侧行链路获取到的；定位管理设备向基于邻近服务功能、第五代移动通信直接发现名称管理(5th generation direct discovery name management function，5G DDNMF)、基于邻近服务功能服务器或车到万物(vehicle to everything，V2X)应用服务器发送第二请求，第二请求用于请求第一终端设备的第二类型标识，第二请求包括第一终端设备的第一类型标识；定位管理设备接收来自基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送的第一终端设备的第二类型标识；定位管理设备根据第一终端设备的第二类型标识识别第一终端设备。
上述技术方案中，定位管理设备可以通过基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器获取第一终端设备的第二类型标识。然后定位管理设备根据第一终端设备的第二类型标识识别第一终端设备。从而便于定位管理设备为第一终端设备和/或第二终端设备进行定位测量和/或测距。
基于第十一方面，一种可能的实现方式中，第一终端设备的第一类型标识包括第一终端设备的层2标识、或第一终端设备的应用层标识。
在该实现方式中，提供了第一终端设备的第一类型标识的两种可能形式，有利于方案的实施。由于在侧行链路通信流程中，不同终端设备之间可以通过层2标识或应用层标识实现互相发现。因此，第二终端设备通过侧行链路通信流程获取该第一终端设备的第一类型标识，并通过第一请求携带该第一终端设备的第一类型标识，以请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。
基于第十一方面，一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
在该实现方式中，提供了层2标识和目标层2标识的一些可能的实现方式，有利于方案的实施。上述示例的标识可以用于不同终端设备之间的发现或识别，因此本申请的方案中，第二终端设备可以是通 过侧行链路通信流程获取该第一类型标识，并通过第一请求携带该第一终端设备的第一类型标识，以请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。
基于第十一方面，一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
基于第十一方面，一种可能的实现方式中，第一终端设备的第二类型标识包括第一终端设备的用户永久标识(subscription permanent identifier，SUPI)、全球唯一的临时标识(globally uique temporary identity，GUTI)、或国际移动用户识别码(international mobile subscriber identity，IMSI)。
在该实现方式中，示出了第一终端设备的第二类型标识的一些可能的形式。第一终端设备的第二类型标识可以是第一终端设备的SUPI、GUTI或IMSI，定位管理设备可识别该第一终端设备的第二类型标识。从而实现定位管理设备对第一终端设备的识别，方便后续为第一终端设备进行定位测量。
本申请第十二方面提供一种通信装置，包括：
收发模块，用于向定位管理设备发送通信装置的标识信息，该通信装置的标识信息用于其他终端设备在定位和/或测距流程中识别该通信装置；接收来自第二终端设备的侧行链路消息，该侧行链路消息包括该通信装置的标识信息。
本申请第十三方面提供一种通信装置，包括：
处理模块，用于确定通信装置的标识信息，通信装置的标识信息用于通信装置所在的侧行链路上的终端设备发现通信装置；
收发模块，用于向定位管理设备发送通信装置的标识信息。
基于第十二方面或第十三方面，一种可能的实现方式中，收发模块还用于：
接收来自定位管理设备的第一请求，第一请求用于请求通信装置上报通信装置的标识信息。
基于第十二方面或第十三方面，一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示通信装置上报的标识类型，标识类型包括层2标识或应用层标识。
基于第十二方面或第十三方面，一种可能的实现方式中，收发模块还用于：
接收来自第二终端设备发送的第二请求，第二请求用于请求通信装置上报通信装置的标识信息。
基于第十二方面或第十三方面，一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示通信装置上报的标识类型，标识类型包括层2标识或应用层标识。
基于第十三方面，一种可能的实现方式中，收发模块还用于：
接收来自第二终端设备的侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
基于第十二方面，一种可能的实现方式中，通信装置还包括处理模块；
处理模块，用于与第二终端设备建立侧行链路连接；与第二终端设备进行侧行链路定位和/或测距。
基于第十三方面，处理模块还用于：
与第二终端设备建立侧行链路连接；与第二终端设备进行侧行链路定位和/或测距。
基于第十二方面或第十三方面，一种可能的实现方式中，收发模块还用于：
向定位管理设备发送第一测量结果，第一测量结果是通信装置与第二终端设备进行侧行链路定位和/或测距得到的。
本申请第十四方面提供一种通信装置，包括：
收发模块，用于接收来自定位管理设备的第一终端设备的标识信息，第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备；向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
本申请第十五方面提供一种通信装置，包括：
收发模块，用于接收来自定位管理设备的第三请求，第三请求用于请求第一终端设备与通信装置之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息，第一终端设备的标识信息是定位管理设备为第一终端设备分配的，或者是第一终端设备向定位管理设备上报的；向第一终端设备发 送侧行链路消息；该侧行链路消息包括第一终端设备的标识信息；
处理模块，用于与第一终端设备建立侧行链路连接；与第一终端设备之间进行侧行链路定位和/或测距。
基于第十四方面或第十五方面，一种可能的实现方式中，收发模块还用于：
向第一终端设备发送第二请求，第二请求用于请求第一终端设备向定位管理设备上报第一终端设备的标识信息。
基于第十四方面或第十五方面，一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
基于第十四方面，一种可能的实现方式中，收发模块具体用于：
接收来自定位管理设备的第三请求，第三请求包括第一终端设备的标识信息，第三请求用于请求第一终端设备与该通信装置之间进行侧行链路定位和/或测距。
基于第十四方面，一种可能的实现方式中，通信装置还包括处理模块；
处理模块，用于与第一终端设备建立侧行链路连接；与第一终端设备进行侧行链路定位和/或测距。
基于第十四方面或第十五方面，一种可能的实现方式中，收发模块还用于：
向定位管理设备发送第二测量结果，第二测量结果是通信装置与第一终端设备之间进行侧行链路定位和/或测距得到的。
本申请第十六方面提供一种通信装置，包括：
处理模块，用于确定第一终端设备的标识信息，该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；
收发模块，用于向第二终端设备发送第一终端设备的标识信息。
本申请第十七方面提供一种通信装置，包括：
处理模块，用于确定第一终端设备的标识信息，第一终端设备的标识信息用于第一终端设备所在的侧行链路上的终端设备发现第一终端设备；
收发模块，用于向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
基于第十六方面，一种可能的实现方式中，收发模块具体用于：
向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
基于第十六方面或第十七方面，一种可能的实现方式中，收发模块还用于：
接收来自第一终端设备的第一测量结果和/或来自第二终端设备的第二测量结果，第一测量结果和/或第二测量结果是第一终端设备与第二终端设备之间进行侧行链路定位和/或测距得到的。
基于第十六方面或第十七方面，一种可能的实现方式中，收发模块还用于：
接收来自第一终端设备的标识信息。
基于第十六方面或第十七方面，一种可能的实现方式中，收发模块还用于：
向第一终端设备发送第一请求，第一请求用于请求第一终端设备上报第一终端设备的标识信息。
基于第十六方面或第十七方面，一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
基于第十六方面或第十七方面，一种可能的实现方式中，处理模块具体用于：
为第一终端设备分配第一终端设备的标识信息；
收发模块还用于：
向第一终端设备发送第一终端设备的标识信息。
本申请第十八方面提供一种通信装置，包括：
收发模块，用于接收来自定位管理设备发送的通信装置的标识信息；通信装置的标识信息是定位管理设备为通信装置分配的；接收来自第二终端设备的侧行链路消息，该侧行链路消息包括该通信装置的标识信息。
基于第十八方面，一种可能的实现方式中，该通信装置还包括处理模块；
处理模块，用于与第二终端设备建立侧行链路；与第二终端设备进行侧行链路定位和/或测距。
本申请第十九方面提供一种通信装置，包括：
收发模块，用于接收来自第二终端设备的第一指示信息或第一消息，第一指示信息或第一消息用于指示通信装置向定位管理设备上报通信装置的标识信息；向定位管理设备发送通信装置的标识信息。
基于第十九方面，一种可能的实现方式中，第一指示信息或第一消息用于指示通信装置上报的标识信息的标识类型，标识类型包括层2标识或应用层标识。
基于第十二方面、第十三方面、第十八方面、或第十九方面，一种可能的实现方式中，通信装置的标识信息包括通信装置的层2标识或应用层标识。
基于第十二方面、第十三方面、第十八方面、或第十九方面，一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
基于第十二方面、第十三方面、第十八方面、或第十九方面，一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
基于第十二方面、第十三方面、第十八方面、或第十九方面，一种可能的实现方式中，通信装置的标识信息还包括以下至少一项：通信装置的层2标识或应用层标识的有效时间、更新周期。
本申请第二十方面提供一种通信装置，包括：
收发模块，用于向第一终端设备发送第一指示信息或第一消息，第一指示信息或第一消息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息；向定位管理设备发送第一请求，第一请求用于请求对第一终端设备和/或通信装置进行定位测量和/或测距，第一请求包括第一终端设备的标识信息。
基于第二十方面，一种可能的实现方式中，第一指示信息或第一消息用于指示第一终端设备上报的标识信息的标识类型，标识类型包括层2标识或应用层标识。
本申请第二十一方面提供一种通信装置，包括：
收发模块，用于接收来自第一终端设备的标识信息；接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的标识信息；
处理模块，用于根据第一终端设备发送的标识信息和第一请求识别第一终端设备。
基于第十四方面、第十五方面、第十六方面、第十七方面、第二十方面或第二十一方面，一种可能的实现方式中，第一终端设备的标识信息包括第一终端设备的层2标识、或应用层标识。
基于第十四方面、第十五方面、第十六方面、第十七方面、第二十方面或第二十一方面，一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
基于第十四方面、第十五方面、第十六方面、第十七方面、第二十方面或第二十一方面，一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
基于第十四方面、第十五方面、第十六方面、第十七方面、第二十方面或第二十一方面，一种可能的实现方式中，第一终端设备的标识信息还包括以下至少一项：第一终端设备的层2标识或应用层标识的有效时间、更新周期。
本申请第二十二方面提供一种通信装置，包括：
收发模块，用于接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的第一类型标识，第一类型标识是第二终 端设备基于侧行链路获取到的；向基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送第二请求，第二请求用于请求第一终端设备的第二类型标识，第二请求包括第一终端设备的第一类型标识；接收来自基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送的第一终端设备的第二类型标识；
处理模块，用于根据第一终端设备的第二类型标识识别第一终端设备。
基于第二十二方面，一种可能的实现方式中，第一终端设备的第一类型标识包括第一终端设备的层2标识、或第一终端设备的应用层标识。
基于第二十二方面，一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
基于第二十二方面，一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
基于第二十二方面，一种可能的实现方式中，第一终端设备的第二类型标识包括第一终端设备的SUPI、GUTI、或IMSI。
本申请第二十三方面提供一种通信装置，通信装置包括处理器。该处理器用于调用并运行存储器中存储的计算机程序，使得处理器实现如第一方面至第十一方面中任一方面中的任意一种实现方式。
可选的，该通信装置还包括收发器；该处理器还用于控制该收发器收发信号。
可选的，该通信装置包括存储器，该存储器中存储有计算机程序。
本申请第二十四方面提供一种包括指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得该计算机执行如第一方面至第十一方面中任一种的实现方式。
本申请第二十五方面提供一种计算机可读存储介质，包括计算机指令，当该计算机指令在计算机上运行时，使得计算机执行如第一方面至第十一方面中的任一种实现方式。
本申请第二十六方面提供一种芯片装置，包括处理器，用于与存储器相连，调用该存储器中存储的程序，以使得该处理器执行上述第一方面至第十一方面中的任一种实现方式。
本申请第二十七方面提供一种通信系统，该通信系统包括如第十四方面所示的通信装置和如第十六方面所示的通信装置。
可选的，该通信系统还包括如第十二方面所示的通信装置；或，如第十八方面所示的通信装置。
本申请第二十八方面提供一种通信系统，该通信系统包括如第十五方面所示的通信装置和如第十七方面所示的通信装置。
可选的，该通信系统还包括如第十三方面所示的通信装置，或，如第十八方面所示的通信装置。
本申请第二十九方面提供一种通信系统，该通信系统包括如第十九方面所示的通信装置、如第二十方面所示的通信装置和如第二十一方面所示的通信装置。
从以上技术方案可以看出，本申请实施例具有以下优点：
经由上述技术方案中，第一终端设备向定位管理设备发送第一终端设备的标识信息，该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备；第一终端设备接收来自第二终端设备的侧行链路消息，该侧行链路消息包括所述第一终端设备的标识信息。其中，该第二终端设备上的第一终端设备的标识信息是定位管理设备向第二终端设备提供的，从而实现第二终端设备识别第一终端设备，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
附图说明
图1为本申请实施例通信系统的一个示意图；
图2为本申请实施例侧行链路通信方法的一个实施例示意图；
图3为本申请实施例侧行链路通信方法的另一个实施例示意图；
图4为本申请实施例侧行链路通信方法的另一个实施例示意图；
图5为本申请实施例侧行链路通信方法的另一个实施例示意图；
图6为本申请实施例侧行链路通信方法的另一个实施例示意图；
图7为本申请实施例通信装置的一个结构示意图；
图8为本申请实施例通信装置的另一个结构示意图；
图9为本申请实施例通信装置的另一个结构示意图；
图10为本申请实施例通信装置的另一个结构示意图；
图11为本申请实施例通信装置的另一个结构示意图；
图12为本申请实施例通信装置的另一个结构示意图；
图13为本申请实施例通信装置的另一个结构示意图。
具体实施方式
本申请实施例提供了一种侧行链路通信方法以及相关装置，用于第二终端设备识别第一终端设备，便于实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。
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，所描述的实施例仅仅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，本领域技术人员在没有作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。
在本申请中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
在本申请的描述中，除非另有说明，“/”表示“或”的意思，例如，A/B可以表示A或B。本文中的“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。此外，“至少一个”是指一个或多个，“多个”是指两个或两个以上。“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和b；a和c；b和c；或a和b和c。其中a，b，c可以是单个，也可以是多个。
本申请实施例的技术方案可以应用于侧行链路通信系统。例如，物联网系统。具体可以是车联网系统，工业物联网系统，智能家居系统等。例如，公共安全系统(public safety)、智慧城市系统、运输安全系统、工业控制系统、无人驾驶系统、工业机器人系统等。
图1为本申请实施例通信系统的一个结构示意图。请参阅图1，通信系统包括终端设备101、终端设备102、终端设备103、接入网设备104、接入和移动性管理功能(access and mobility management function，AMF)105和定位管理功能(location management function，LMF)106。
可选的，终端设备101、终端设备102和终端设备103可以通过接口连接。接入网设备104与AMF105之间可以通过接口连接，AMF105与LMF106可以通过接口连接。
例如，终端设备101与终端设备102之间可以通过PC5接口连接。终端设备101与终端设备103可以通过PC5接口连接，终端设备101与终端设备103可以通过PC5接口连接。终端设备101和终端设备102分别通过NR-Uu接口与接入网设备104连接，接入网设备104与AMF105之间通过NG-C接口连接。AMF105与LMF106之间通过NL1接口连接。NR-Uu接口是终端设备与接入网设备之间的通信接口。NG-C接口是接入网与核心网之间的控制面接口。NL1接口是AMF与LMF之间的通信接口。
上述图1仅仅示出了该通信系统包括终端设备101、终端设备102、终端设备103和接入网设备104的示例。而实际应用中，该通信系统可以包括至少两个终端设备和至少一个接入网设备，具体本申请不做限定。
终端设备，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。终端设备是包括无线通信功能(向用户提供语音/数据连通性)的设备。例如，具有无线连接功能的手持式设备、车载设备、机器类型通信(machine type communication,MTC)终端等。目前，终端设备可以包括：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端(例如，无人机、车辆)、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、或智慧家庭(smart home)中的无线终端等。
接入网设备104是一种部署在无线接入网中为终端设备提供无线通信功能的装置。接入网设备可以将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点。
接入网设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G移动通信系统中的网络设备。例如，NR系统中的下一代基站(next generation NodeB，gNB)，传输接收点(transmission reception point，TRP)，传输点(transmission point，TP)；或者，5G移动通信系统中的基站的一个或一组(包括多个天线面板)天线面板；或者，接入网设备还可以为构成gNB或传输点的网络节点。例如，基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。
例如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)层以及分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来。因此在该架构下，高层信令(如RRC层信令)也可以认为是由DU发送的，或者，由DU和AAU发送的。
可以理解的是，接入网设备可以为包括CU节点、DU节点、AAU节点中一个或多个的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
AMF负责终端设备接入网络的接入控制、注册管理、业务管理、移动性管理等。
LMF用于对终端设备的位置进行定位计算和管理。
本申请中，AMF的名称可能随着通信系统的演进而改变。在目前通信系统或未来通信系统中，只要具备与该AMF类似功能的其他名称的功能网元，都可以理解为本申请的AMF。并且适用于本申请实施例提供的方法。
本申请中，LMF为目前通信系统中的名称。在未来通信系统中，该LMF的名称可能随着通信系统的演进而改变。因此，后文中将LMF称为定位管理设备介绍本申请的技术方案。该定位管理设备用于对终端设备的位置进行定位计算。在目前通信系统或未来通信系统中，只要具备与该定位管理设备类似功能的其他名称的功能网元，都可以理解本申请中的定位管理设备。并且适用于本申请提供的方法。
下面介绍本申请涉及的一些技术术语。
应用标识(application ID)：用于标识一个特定的应用。
基于邻近服务应用标识(proximity based servicesapplication identity，ProSe application ID)：在开放基于邻近服务直接发现流程中，标识能够支持5G基于邻近服务(5G ProSe)要求和流程的终端 设备的应用层相关信息。通常用于侧行链路上的通信传输。
基于邻近服务服务应用码(ProSe application code)：与基于邻近服务应用标识关联，用于开放基于邻近服务直接发现(open ProSe direct discovery)流程。由终端设备通过第四代移动通信基于邻近服务功能(4G ProSe funciton)或第五代移动通信直接发现名称管理(5th generation direct discovery name management function，5G DDNMF)发送基于邻近服务发现用户设备标识(Prose discovery UE ID，PDUID)申请获得。
基于邻近服务受限码(ProSe restricted code)：用于受限基于邻近服务直接发现流程，由终端设备向4G基于邻近服务功能或5G DDNMF发送受限基于邻近服务应用用户设备标识(restricted ProSe application UE ID，RPAUID)，以获取基于邻近服务受限码。
基于邻近服务发现用户设备标识(Prose discovery UE ID，PDUID)：是用户设备服务鉴权信息的一部分，可用于向基于邻近服务应用服务器(ProSe applicationserver)申请PDUID。
受限基于邻近服务应用用户设备标识(restrictedProSe application UE ID，RPAUID)：是基于邻近服务应用服务器(ProSe application server)为一个受限基于邻近服务应用的用户标识生成的临时标识，用于保护应用层的用户标识。
层2标识(layer-2 ID)：用于终端设备之间进行侧行链路通信和/或V2X通信。层2标识包括源层2标识(source layer-2 ID)和目标层2标识(destination layer-2 ID)。
源层2标识：用于标识侧行链路通信的发送方。源层2标识的长度为24比特，在媒体接入控制(media access control，MAC)层被分割为两个比特流。第一个比特流是源层2标识的最低有效位(least significant bit，LSB)部分，该LSB部分发送至物理层，该LSB部分用于标识侧行链路控制信息中预期数据的来源，用于接收端的物理层包过滤。该LSB部分的长度为8比特。第二个比特流是源层2标识的最高有效位(most significant bit，MSB)部分，该MSB部分的长度为16比特，该MSB部分携带在MAC头中，用于接收端的MAC层包过滤。
目标层2标识：用于标识侧行链路通信中的目标数据。对于侧行链路通信，目标层2标识的长度为24比特，并且在MAC层被分割为两个比特流。第一个比特流是目标层2标识的LSB部分，该LSB部分的长度为16比特，该LSB部分发送至物理层。第二个比特流是目标层2标识的MSB部分，该MSB部分的长度为8比特，该MSB部分携带在MAC头中，用于MAC层包过滤。
可选的，上述示出的标识可以是高层配置的。
5G基于邻近服务直接发现(5G ProSe direct discovery)是V2X通信系统中，终端设备发现临近终端设备的技术。5G基于邻近服务直接发现流程有两种类型，分别为开放发现(open discovery)和受限发现(restricted discovery)。5G基于邻近服务直接发现流程有两种模型，分别为模型A(mode A)和模型B(mode B)。其中，模型B只支持受限发现。5G基于邻近服务直接发现流程可以简称为发现流程。
下面介绍5G基于邻近服务发现流程中的模型A。
在模型A中，终端设备被分为发送UE(announcing UE)和监测UE(monitoring UE)。具体原理是：5G DDNMF分别给两个终端设备分配基于邻近服务应用码(ProSe application code)和发现过滤器(discovery filters)。如果是受限发现流程，则5G DDNMF分别给两个终端设备分配的是基于邻近服务受限应用码。发送UE发送通知消息(announcement message)，通知消息中包含了消息的类型(指示该消息为通知消息)、基于邻近服务应用码、以及安全保护单元等。监测UE接收来自该发送UE的通知消息。如果监测UE监测到与该监测UE的发现过滤器匹配的基于邻近服务应用码，则表示监测UE发现了该发送UE。
通知消息的发送依赖于两个标识，分别为源层2标识和目标层2标识。这两个标识能够指示一条侧行链路。源层2标识一般是由终端设备自主选择的，用于发送通知消息。目标层2标识一般是由邻近通信5发现(ProSe communication 5 discovery，PC5-D)协议层给终端设备配置的。该目标层2标识是由基于邻近服务身份(ProSe identities)映射得到的。在版本16(release 16，R16)版本中，用于发现流程的标识通常是应用标识。
下面介绍5G基于邻近服务发现流程中的模型B。
模型B的基本原理与模型A相同。模型B中，终端设备被分为发现UE(discoverer UE)和被发现UE(discoveree UE)。发现UE发送请求(solicitation)消息，该请求消息包含发现消息的类型、基于邻近服务查询码(ProSe query code)、安全保护单元等。基于邻近服务查询码是5G DDNMF分配的，同时被发现UE也会被分配相应的发现过滤器(discovery filters)。
若被发现UE检测到该请求消息，被发现UE可以向发现UE返回响应消息。该响应消息包含发现消息的类型、基于邻近服务查询码、安全保护单元、元数据(metadata)消息等。发现UE接收到该响应消息后，则该被发现UE被发现。也就是发现UE与被发现UE实现互相发现。
由此可知，终端设备之间可以通过PC5接口连接，并通过侧行链路(sidelink，SL)通信。例如，终端设备1通过侧行链路向终端设备2发送信号。然而，如何触发侧行链路上的两个终端设备之间做定位测量和/或测距，是值得考虑的问题。
目前，在NR定位中，定位管理设备可以通过长期演进定位协议(long term evolution positioning protocol，LPP)消息请求目标终端设备上报定位信息。在该请求中可包含要求上报的消息类型、上报周期、测量量等。目标终端设备在接收到该请求后，可以根据该请求执行定位测量，并通过LPP消息向定位管理设备上报相应的测量结果。在NR定位过程中，定位管理设备根据目标终端设备的SUPI来识别目标终端设备。
而在侧行链路通信流程中，常用的终端设备标识为层2标识、应用层标识。因此，如果将上述基于侧行链路通信流程、NR定位流程用于侧行链路定位，则存在NR定位流程采用的终端设备的标识(例如，终端设备的SUPI)与侧行链路通信流程采用的终端设备的标识(例如，层2标识、或应用层标识)不统一的问题。侧行链路通信流程可以包括发现流程、或、定位和/或测距流程等，具体本申请不做限定。下面介绍两种可能的场景。
场景一：定位管理设备可以通过LPP消息请求第二终端设备与第一终端设备进行侧行链路定位。通常，定位管理设备不会将第一终端设备的SUPI给第二终端设备。另一方面，即使定位管理设备向第二终端设备发送该第一终端设备的SUPI。第二终端设备也无法识别该第一终端设备的SUPI。因此，导致第二终端设备采用第一终端设备的SUPI无法识别第一终端设备。因此LMF无法提供合适的第一终端设备的标识，使得第一终端设备与第二终端设备之间无法配对以建立侧行链路。进而导致第一终端设备与第二终端设备之间无法进行侧行链路定位和/或测距。
本申请提供了相应的技术方案，用于定位管理设备触发第二终端设备与第一终端设备之间执行侧行链路定位和/或测距，实现第一终端设备与第二终端设备之间的定位测量和/或测距。具体可以参阅后文图2至图4所示的实施例以及步骤2001至步骤2007所示的实施例的相关介绍。
场景二：第二终端设备通过移动发起的定位请求(mobile originated location request，MO-LR)向定位管理设备发起请求，以请求对第一终端设备和/或第二终端设备进行定位测量。该请求中包括第一终端设备的标识。例如，该第一终端设备的标识可以是基于邻近服务直接发现流程采用的标识，或侧行链路通信传输采用的标识。例如，层2标识、应用层标识等。而定位管理设备无法识别该请求携带的标识，导致定位管理设备无法对第一终端设备和/或第二终端设备进行定位测量。
本申请提供了相应的技术方案，用于定位管理设备识别第二终端设备，实现定位管理设备对第一终端设备和/或第二终端设备进行定位测量。具体可以参阅后文图5和图6所示的实施例的相关介绍。
需要说明的是，本申请中，“发现”可以等同于“识别”、“匹配”或“配对”。本申请中，主要是以发现流程为示例介绍了应用层标识。实际应用中，其他侧行链路相关的应用层标识本申请均适用，具体本申请不做限定。
下面结合具体实施例介绍本申请的技术方案。
图2为本申请实施例侧行链路通信方法的一个实施例示意图。请参阅图2，侧行链路通信方法包括：
201、定位管理设备确定第一终端设备的标识信息。
该第一终端设备的标识信息用于第一终端设备所在的侧行链路上的终端设备发现该第一终端设备。其中，第一终端设备所在的侧行链路上的终端设备可以理解为除第一终端设备之外的其他终端设备。例 如，该第一终端设备的标识信息用于第二终端设备发现第一终端设备。
可选的，第一终端设备的标识信息包括第一终端设备的层2标识，或第一终端设备的应用层标识。
其中，层2标识包括以下至少一项：源层2标识、或目标层2标识。关于源层2标识和目标层2标识请参阅前文相关介绍。
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
需要说明的是，上述仅仅示出了应用层标识的一些示例，实际应用中，其他侧行链路相关的应用层标识本申请均适用，具体本申请不做限定。
可选的，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。关于这些标识请参阅前文术语中的相关介绍。
例如，在基于邻近服务直接发现流程中，终端设备可以使用基于邻近服务应用标识、或受限基于邻近服务应用用户设备标识向5G基于邻近服务功能或5G直接发现名称管理网元申请用于发现流程的基于邻近服务应用码或基于邻近服务应用受限码。因此，第一终端设备与第二终端设备之间可以通过第一终端设备的应用层标识实现第一终端设备与第二终端设备之间的发现。本实施例中，第一终端设备的应用层标识用于第一终端设备与第二终端设备之间的发现。因此，本申请的技术方案中，定位管理设备可以向第二终端设备发送第一终端设备的应用层标识。然后，第二终端设备可以采用第一终端设备的应用层标识实现第一终端设备与第二终端设备之间的发现。然后，第一终端设备与第二终端设备进行侧行链路定位和/或测距。
例如，该第一终端设备的标识信息包括第一终端设备的源层2标识。一般情况下，源层2标识是第一终端设备自行选择的。本实施例中，源层2标识用于第一终端设备与第二终端设备之间的发现。因此，本申请的技术方案中，定位管理设备可以向第二终端设备发送第一终端设备的源层2标识。然后，第二终端设备可以采用第一终端设备的源层2标识实现第一终端设备与第二终端设备之间的发现。然后，第一终端设备与第二终端设备进行侧行链路定位和/或测距。
可选的，该第一终端设备的源层2标识或应用层标识是定位业务绑定或关联的标识。该第一终端设备的源层2标识或应用层标识在一次或多次定位业务中可以唯一标识该第一终端设备。
可选的，第一终端设备的标识信息还包括以下至少一项：第一终端设备的用户信息、第一终端设备的源层2标识或应用层标识的有效时间、更新周期。
上述步骤201中，定位管理设备获取第一终端设备的标识信息的方式有多种，本申请不做限定。具体可以参阅后文图3至图4所示的实施例介绍的两种可能的实现方式，这里不做详细介绍。
202、定位管理设备向第二终端设备发送第三请求。第三请求包括第一终端设备的标识信息。相应的，第二终端设备接收来自定位管理设备的第三请求。
第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位(sidelink positioning)和/或测距(ranging)。
可选的，第三请求还包括第一终端设备的能力信息。
可选的，第三请求包括定位管理设备请求上报的以下至少一项：第一终端设备的相对位置、第一终端设备的绝对位置、第二终端设备的相对位置、第二终端设备的绝对位置、测量量(例如，到达时间、到达角度等)、第一终端设备与第二终端设备之间的距离。
可选的，如后文图3所示的实施例可知，第一终端设备的标识信息是第一终端设备向定位管理设备上报的；或者，如后文图4所示的实施例可知，第一终端设备的标识信息是定位管理设备为第一终端设备分配的。具体请参阅后文的相关介绍。
可选的，该第三请求也可称为定位请求(position request)。
可选的，该定位请求承载于请求位置信息(request location information)消息中或新的LPP消息中，具体本申请不做限定。
203、第二终端设备向第一终端设备发送侧行链路消息。该侧行链路消息包括第一终端设备的标识 信息。相应的，第一终端设备接收该第二终端设备发送的该侧行链路消息。
具体的，第二终端设备可以向第一终端设备发送侧行链路消息。该侧行链路消息包括第一终端设备的标识信息。例如，该侧行链路消息可以是前述介绍的模型A中的请求消息，或者是模型B中的通知消息，具体本申请不做限定。而第一终端设备监测侧行链路消息。如果监测到侧行链路消息中包括第一终端设备的标识信息，则第一终端设备接收该第二终端设备发送的该侧行链路消息。
需要说明的是，上述步骤203的过程可以理解为第一终端设备发现第二终端设备的过程。
可选的，图2所示的实施例还包括步骤204和步骤205，步骤204和步骤205可以在步骤203之后执行。
204、第一终端设备与第二终端设备之间建立侧行链路。
下面介绍上述步骤204的几种可能的实现方式。
下面结合步骤2004a至步骤2004b介绍方式1。可选的，步骤204具体包括步骤2004a至步骤2004b。
2004a、第一终端设备向第二终端设备发送第一建立请求。该第一建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。相应的，第二终端设备接收来自第一终端设备的第一建立请求。
在方式1下，一种可能的实现方式中，在步骤2004a之前，该第一终端设备向第二终端设备发送响应消息。该响应消息用于指示该第一终端设备发现了该第二终端设备。
2004b、第一终端设备与第二终端设备之间建立侧行链路。
具体的，第二终端设备接收到第一建立请求之后，第一终端设备可以与第二终端设备建立侧行链路。
在介绍方式2之前，可选的，图2所示的实施例还包括步骤203a。步骤203a可以在步骤203之后且在步骤204之前执行。
203a、第一终端设备向第二终端设备发送响应消息，该响应消息用于指示该第一终端设备发现了该第二终端设备。相应的，第二终端设备接收来自第一终端设备的响应消息。
需要说明的是，上述步骤203和步骤203a可以理解为第一终端设备与第二终端设备之间的发现过程。
下面结合步骤2004c至步骤2004d介绍方式2。可选的，步骤204具体包括步骤2004c至步骤2004d。步骤2004c至步骤2004d可以在步骤203a之后执行。
2004c、第二终端设备向第一终端设备发送第二建立请求，该第二建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。相应的，第一终端设备接收来自第二终端设备的第二建立请求。
2004d、第一终端设备与第二终端设备之间建立侧行链路。
具体的，第一终端设备接收到该第二建立请求之后，第一终端设备可以与第二终端设备建立侧行链路。下面结合步骤2004e介绍方式3。可选的，步骤204具体包括步骤2004e。步骤2004e可以在步骤203之后执行。
2004e、第一终端设备接收到上述步骤203中的侧行链路消息之后，第一终端设备与第二终端设备之间的侧行链路。
第一终端设备发送第三建立请求，该第三建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。第一终端设备可以与第二终端设备建立侧行链路。
在方式3下，可选的，该第一终端设备向第二终端设备发送响应消息。该响应消息用于指示该第一终端设备发现了该第二终端设备。
205、第一终端设备与第二终端设备进行侧行链路定位和/或测距。
第一终端设备与第二终端设备之间可以通过侧行链路传输定位参考信号，从而实现侧行链路定位和/或测距。例如，第二终端设备通过侧行链路向第一终端设备发送第一定位参考信号。第一终端设备测量该第一定位参考信号得到第一测量结果。和/或，第一终端设备通过侧行链路向第二终端设备发送第二定位参考信号。第二终端设备测量该第二定位参考信号得到第二测量结果。
可选的，第一测量结果包括以下至少一项：第一终端设备测量第一定位参考信号得到的测量量、第二终端设备的位置、第二终端设备与第一终端设备之间的距离。例如，第一终端设备测量第一定位参考信号得到的测量量包括以下至少一项：第一定位参考信号到达第一终端设备的到达时间、到达角度。可 选的，第二测量结果包括：第二终端设备测量第二定位参考信号得到的测量量、第二终端设备的位置、第二终端设备与第一终端设备之间的距离。第二终端设备测量第二定位参考信号得到的测量量包括以下至少一项：第二定位参考信号到达第二终端设备的到达时间、到达角度。
可选的，图2所示的实施例还包括步骤206和/或步骤207。
206、第一终端设备向定位管理设备发送第一测量结果。相应的，定位管理设备接收来自第一终端设备的第一测量结果。
207、第二终端设备向定位管理设备发送第二测量结果。相应的，定位管理设备接收来自第二终端设备的第二测量结果。
上述图2所示的实施例可以只执行步骤206，或者只执行步骤207，或者既执行步骤206，也执行步骤207，具体本申请不做限定。对于既执行步骤206也执行步骤207的方案，步骤206与步骤207之间没有固定的执行顺序，可以先执行步骤206，再执行步骤207；或者，先执行步骤207，再执行步骤206；或者，依据情况同时执行步骤206和步骤207，具体本申请不做限定。
本申请实施例中，定位管理设备确定第一终端设备的标识信息。该第一终端设备的标识信息用于第一终端设备所在的侧行链路上的其他终端设备发现该第一终端设备。定位管理设备向第二终端设备发送第三请求。第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括该第一终端设备的标识信息。由此可知，本申请的技术方案中，定位管理设备可以确定用于其他终端设备发现该第一终端设备的标识信息，并向第二终端设备发送第三请求，该第三请求包括第一终端设备的标识信息。从而触发第二终端设备发现第一终端设备，并与第一终端设备执行侧行链路定位和/或测距。实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。解决了侧行链路通信的流程采用的第一终端设备的标识与NR定位流程采用的终端设备的标识不对齐的问题。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
本申请还提供另一个实施例，该实施例与图2所示的实施例类似。下面结合步骤2001至步骤2007介绍本实施例的技术方案。本实施例中侧行链路通信方法包括：
步骤2001、定位管理设备确定第一终端设备的标识信息。
第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备，其他终端设备是指除第一终端设备之外的终端设备。或者，第一终端设备的标识信息用于第一终端设备与第二终端设备在侧行链路定位和/或测距流程中配对。或者，第一终端设备的标识信息用于第二终端设备在侧行链路定位和/或测距流程中第一终端设备。
关于第一终端设备的标识信息包括的内容可以参阅前述图2所示的实施例中的相关介绍。本实施例中第一终端设备的标识信息与上述图2所示的实施例的第一终端设备的标识信息的区别在于：本实施例中，第一终端设备的标识信息的作用是其他终端设备在定位和/或测距流程中识别第一终端设备。而上述图2所示的实施例中的第一终端设备的标识信息的作用是其他终端设备在发现流程中发现第一终端设备。
上述步骤2001中定位管理设备确定第一终端设备的标识信息的具体确定方式可以参阅后文图3或图4所示的实施例的相关介绍。对于其他确定方式本申请仍适用，后文图3或图4所示的实施例的确定方式并不属于对本申请的限定。
步骤2002、定位管理设备向第二终端设备发送第一终端设备的标识信息。相应的，第二终端设备接收来自定位管理设备的第一终端设备的标识信息。
可选的，定位管理设备向第二终端设备发送第三请求。第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
可选的，上述第一终端设备的标识信息与第三请求可以分开发送，也可以一起发送。对于定位管理设备一起发送第三请求和第一终端设备的标识信息的实现方式，该第三请求可以包括该第一终端设备的标识信息。
关于第三请求可以参阅前述图2所示的实施例的相关介绍。
2003、第二终端设备向第一终端设备发送侧行链路消息。该侧行链路消息包括第一终端设备的标识 信息。相应的，第一终端设备接收该第二终端设备发送的该侧行链路消息。
具体的，第二终端设备发送侧行链路消息。该侧行链路消息包括第一终端设备的标识信息。如果第一终端设备监测到侧行链路消息包括第一终端设备的标识信息，则第一终端设备可以确定该侧行链路消息是发送给第一终端设备。第一终端设备可以通过该侧行链路消息可以识别该第二终端设备。
上述步骤2003可以理解为第一终端设备与第二终端设备之间的识别过程、匹配过程或配对过程。
可选的，本实施例还包括步骤2004和步骤2005，步骤2004和步骤2005可以在步骤2003之后执行。
2004、第一终端设备与第二终端设备之间建立侧行链路。
下面介绍上述步骤2004的几种可能的实现方式。
下面结合步骤a至步骤b介绍方式1。可选的，步骤2004具体包括步骤a至步骤b。
步骤a、第一终端设备向第二终端设备发送第一建立请求。该第一建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。相应的，第二终端设备接收来自第一终端设备的第一建立请求。
在方式1下，一种可能的实现方式中，在步骤2004之前，该第一终端设备向第二终端设备发送反馈消息。该反馈消息用于指示该第一终端设备识别了该第二终端设备。
步骤b、第一终端设备与第二终端设备之间建立侧行链路。
具体的，第二终端设备接收到第一建立请求之后，第二终端设备与第一终端设备实现配对。或者说，第二终端设备识别了该第一终端设备。第一终端设备可以与第二终端设备建立侧行链路。
在介绍方式2之前，可选的，本实施例还包括步骤2003a。步骤2003a可以在步骤2003之后且在步骤2004之前执行。
步骤2003a、第一终端设备向第二终端设备发送反馈消息，该反馈消息用于指示该第一终端设备识别了或匹配了该第二终端设备。相应的，第二终端设备接收来自第一终端设备的反馈消息。
对于第一终端设备和第二终端设备来说，通过上述步骤2003至步骤2003a的过程实现了第一终端设备与第二终端设备之间的识别或配对。上述步骤2003和步骤2003a可以理解为第一终端设备与第二终端设备之间的识别过程或配对过程。
下面结合步骤c至步骤d介绍方式2。可选的，步骤2004具体包括步骤c至步骤d。步骤c至步骤d可以在步骤2003a之后执行。
步骤c、第二终端设备向第一终端设备发送第二建立请求，该第二建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。相应的，第一终端设备接收来自第二终端设备的第二建立请求。
步骤d、第一终端设备与第二终端设备之间建立侧行链路。
具体的，第一终端设备接收到该第二建立请求之后，第一终端设备可以与第二终端设备建立侧行链路。
下面结合步骤e介绍方式3。可选的，步骤2004具体包括步骤e。步骤e可以在步骤2003之后执行。
步骤e、第一终端设备接收到上述步骤2003中的侧行链路消息之后，第一终端设备与第二终端设备之间的侧行链路。
第一终端设备发送第三建立请求，该第三建立请求用于请求建立第一终端设备与第二终端设备之间的侧行链路。第一终端设备可以与第二终端设备建立侧行链路。
在方式3下，可选的，该第一终端设备向第二终端设备发送反馈消息。该反馈消息用于指示该第一终端设备识别了或匹配了该第二终端设备。第二终端设备接收到该反馈消息之后，第二终端设备也识别了或匹配了该第一终端设备。从而实现第一终端设备与第二终端设备之间的识别或配对。
步骤2005、第一终端设备与第二终端设备进行侧行链路定位和/或测距。
步骤2005与前述图2所示的实施例的步骤205类似，具体可以参阅前述的相关介绍。
可选的，本实施例还包括步骤2006和/或步骤2007。
步骤2006、第一终端设备向定位管理设备发送第一测量结果。相应的，定位管理设备接收来自第一终端设备的第一测量结果。
步骤2007、第二终端设备向定位管理设备发送第二测量结果。相应的，定位管理设备接收来自第二 终端设备的第二测量结果。
步骤2006和步骤2007与前述图2所示的实施例的步骤206和步骤207类似，具体可以参阅前述的相关介绍。
本申请实施例中，定位管理设备确定第一终端设备的标识信息。该第一终端设备用于其他终端设备在定位和/或测距流程中识别或匹配该第一终端设备。定位管理设备向第二终端设备发送该第一终端设备的标识信息。由此可知，本申请的技术方案中，定位管理设备可以确定用于其他终端设备识别或匹配该第一终端设备的标识信息，并向第二终端设备发送该第一终端设备的标识信息。从而触发第二终端设备识别该第一终端设备，并与第一终端设备执行侧行链路定位和/或测距。实现第一终端设备与第二终端设备之间的侧行链路定位和/或测距。解决了侧行链路通信流程采用的第一终端设备的标识与NR定位流程采用的终端设备的标识不对齐的问题。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间进行侧行链路定位和/或测距。
下面结合图3和图4所示的实施例介绍定位管理设备确定第一终端设备的标识信息的两种可能的实现方式。
图3为本申请实施例侧行链路通信方法的另一个实施例示意图。请参阅图3，侧行链路通信方法包括：
301、第一终端设备向定位管理设备发送第一终端设备的标识信息。相应的，定位管理设备接收来自第一终端设备的标识信息。
一种可能的实现方式中，第一终端设备可以主动向定位管理设备上报第一终端设备的标识信息。关于第一终端设备的标识信息请参阅前述的相关介绍，这里不再赘述。
另一种可能的实现方式中，第一终端设备可以基于其他设备的请求向定位管理设备上报第一终端设备的标识信息。下面介绍两种可能的实现方式。
下面结合步骤301a介绍方式1。可选的，图3所示的实施例还包括步骤301a。步骤301a可以在步骤301之前执行。
301a、定位管理设备向第一终端设备发送第一请求。相应的，第一终端设备接收来自定位管理设备的第一请求。
第一请求用于请求第一终端设备向定位管理设备上报第一终端设备的标识信息。
具体的，当定位管理设备需要对第一终端设备进行定位时，定位管理设备可以向第一终端设备请求第一终端设备的标识信息。
可选的，第一请求还包括第一指示信息，该第一指示信息用于指示第一终端设备上报的第一终端设备的标识类型。该标识类型包括层2标识或应用层标识。关于第一终端设备的标识信息请参阅前文相关介绍。
可选的，图3所示的实施例还包括301b。
301b、第二终端设备向定位管理设备发送第二终端设备的标识信息。相应的，定位管理设备接收来自第二终端设备的标识信息。
第二终端设备的标识信息与第一终端设备的标识信息类似，具体可以参阅前述第一终端设备的标识信息的相关介绍，这里不再赘述。
需要说明的是，步骤301b与步骤301之间没有固定的执行顺序。可以先执行步骤301，再执行步骤301b；或者，先执行步骤301b，再执行步骤301；或者，依据情况同时执行步骤301和步骤301b，具体本申请不做限定。
可选的，图3所示的实施例还包括步骤301c。步骤301c可以在步骤301b之前执行。
301c、定位管理设备向第二终端设备发送第四请求。相应的，第二终端设备接收来自定位管理设备的第四请求。
其中，第四请求用于请求第二终端设备向定位管理设备上报第二终端设备的标识信息。
具体的，当定位管理设备需要对第二终端设备进行定位时，定位管理设备可以向第二终端设备请求第二终端设备的标识信息。
可选的，第四请求还包括第三指示信息，该第三指示信息用于指示第二终端设备上报的第二终端设备的第二标识的标识类型。关于标识类型请参阅前文的相关介绍。
需要说明的是，步骤301和步骤301a与步骤301b和步骤301c之间没有固定的执行顺序。可以先执行步骤301和步骤301a，再执行步骤301b和步骤301c；或者，先执行步骤301b和步骤301c，再执行步骤301和步骤301a；或者，依据情况同时执行步骤301和步骤301a与步骤301b和步骤301c，具体本申请不做限定。
下面结合步骤301d介绍方式2。可选的，图3所示的实施例还包括步骤301d。步骤301d可以在步骤301之前执行。
301d、第二终端设备向第一终端设备发送第二请求。第二请求用于请求第一终端设备向定位管理设备上报第一终端设备的标识信息。相应的，第一终端设备接收来自第二终端设备的第二请求。
具体的，当第二终端设备有定位需求时，第二终端设备可以请求第一终端设备向定位管理设备上报第一终端设备的标识信息。该第一终端设备可以是第二终端设备的临近终端设备。
可选的，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报第一终端设备的标识类型。该标识类型包括层2标识或应用层标识。关于第一终端设备的标识信息请参阅前文相关介绍。
图4为本申请实施例侧行链路通信方法的另一个实施例示意图。请参阅图4，侧行链路通信方法包括：
401、定位管理设备为第一终端设备分配第一终端设备的标识信息。
该第一终端设备的标识信息可以参阅前述的相关介绍。
可选的，定位管理设备可以基于定位业务为第一终端设备分配标识信息，该第一终端设备的标识信息与定位业务关联。例如，该第一终端设备的标识信息包括第一终端设备的用于定位的标识。例如，该第一终端设备的标识信息包括第一终端设备的用于定位的层2标识。
例如，定位管理设备为第一终端设备分配应用层标识。该应用层标识包括第一终端设备的名称和该定位管理设备的地址或标识。
例如，定位管理设备分别为第一终端设备和第二终端设备分配用于定位发现等流程的基于邻近服务码(code)和过滤器(filters),该基于邻近服务码的原理、形式和该过滤器的原理、形式可类比基于邻近服务直接发现流程中分配的基于邻近服务应用码、发现过滤器。
402、定位管理设备向第一终端设备发送第一终端设备的标识信息。相应的，第一终端设备接收来自定位管理设备的第一终端设备的标识信息。
在该实现方式中，第一终端设备获取该定位管理设备为第一终端设备分配的标识信息。在侧行链路通信系统中，第一终端设备可以监测侧行链路消息。如果第二终端设备发送的侧行链路消息包括该第一终端设备的标识信息，则第一终端设备可以解析该侧行链路消息。
可选的，图4所示的实施例还包括步骤403和步骤404。
403、定位管理设备为第二终端设备分配第二终端设备的标识信息。
第二终端设备的标识信息与第一终端设备的标识信息类似，具体可以参阅前述的相关介绍。
404、定位管理设备向第二终端设备发送第二终端设备的标识信息。相应的，第二终端设备接收来自定位管理设备的第二终端设备的标识信息。
在该实现方式中，第二终端设备接收定位管理设备为第二终端设备分配的标识信息。在侧行链路通信系统中，第二终端设备可以监测侧行链路消息。若第二终端设备监测到侧行链路消息包括该第二终端设备的标识信息，第二终端设备对该侧行链路消息进行译码。
图5为本申请实施例侧行链路通信方法的另一个实施例示意图。请参阅图5，侧行链路通信方法包括：
501、第二终端设备向第一终端设备发送第一指示信息或第一消息。第一指示信息或第一消息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息。相应的，第一终端设备接收来自第二终端设备的第一指示信息。
关于第一终端设备的标识信息请参阅前述关于第一终端设备的标识信息的相关介绍。
上述第一消息本身具有指示第一终端设备向定位管理设备上报第一终端设备的标识信息的作用。例如，该第一消息可以称为侧行链路消息，本申请对第一消息的名称不做限定。可选的，第一消息还用于指示第一终端设备上报的标识信息的类型。
例如，第一指示信息的取值为“1”时，则指示第一终端设备向定位管理设备上报第一终端设备的标识信息。
可选的，第一指示信息还用于指示第一终端设备上报的标识信息的类型。
下面介绍第一指示信息的几种发送方式。对于其他发送方式本申请也适用，下述示例不属于对本申请的限定。
下面结合步骤501a介绍方式1。可选的，上述步骤501具体包括步骤501a和步骤501b。
501a、第二终端设备向第一终端设备发送通知消息或请求消息，该通知消息或请求消息中包括第一指示信息。相应的，第一终端设备接收来自第二终端设备的通知消息或请求消息。
例如，在侧行链路通信流程中，第二终端设备向第一终端设备(第一终端设备为第二终端设备的临近终端设备)发送通知消息或请求消息。该通知消息或请求消息中包括第二终端设备的标识信息以及第一指示信息。第一指示信息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息。可选的，第一指示信息还用于指示第一终端设备上报的标识信息的类型。
501b、若第一终端设备监测到该通知消息或该请求消息包括该第一终端设备的标识信息，则第一终端设备解析该通知消息或该请求消息。该通知消息或请求消息中包括第一指示信息。
第一终端设备解析该通知消息或该请求消息，以确定第一指示信息。第一终端设备根据该第一指示信息执行后文步骤502。
可选的，图5所示的实施例还包括步骤501c。步骤501c可以在步骤501b之后执行。
501c、第一终端设备向第二终端设备发送响应消息。相应的，第二终端设备接收来自第一终端设备的响应消息。
其中，响应消息包括第一终端设备的标识信息。
例如，第一终端设备发现或识别第二终端设备之后，第一终端设备可以向第二终端设备发送该响应消息。那么第二终端设备接收响应消息后，则代表第二终端设备也发现了或识别了该第一终端设备。
下面结合步骤501d介绍方式2。可选的，上述步骤501具体包括步骤501d。
501d、第二终端设备向第一终端设备发送反馈消息。该反馈消息包括第一指示信息。相应的，第一终端设备接收来自第二终端设备的反馈消息。
可选的，在上述步骤501d之前，图5所示的实施例还包括步骤501e和步骤501f。
501e、第二终端设备向第一终端设备发送通知消息或请求消息。相应的，第一终端设备接收来自第二终端设备的通知消息或请求消息。
上述步骤501d与前述步骤501a类似，不同地方在于：该通知消息或请求消息不携带第一指示信息。
501f、若第一终端设备监测到通知消息或请求消息中包括第一终端设备的标识信息，则第一终端设备解析该通知消息或该请求消息。
上述步骤501f与前述步骤501b类似，具体可以参阅前述步骤501b的相关介绍。
502、第一终端设备向定位管理设备发送第一终端设备的标识信息。相应的，定位管理设备接收来自第一终端设备的标识信息。
503、第二终端设备向定位管理设备发送第一请求。第一请求包括第一终端设备的标识信息。相应的，定位管理设备接收来自第二终端设备的第一请求。
其中，第一请求用于请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。
可选的，第一请求为移动发起的定位请求(mobile originated location request，MO-LR)；或者，第一请求为LPP消息，本申请对第一请求的实现方式不做限定。可选的，第一请求包括第一终端设备请求的以下至少一项：第一终端设备的绝对位置、第一终端设备的相对位置、第二终端设备的绝对位置、第二终端设备的相对位置、定位测量得到的测量量、第一终端设备与第二终端设备之间的距离。
504、定位管理设备根据第一终端设备发送的第一终端设备的标识信息和第一请求包括的第一终端 设备的标识信息识别第二终端设备。
在该实现方式中，当第二终端设备有定位需求时，第二终端设备与第一终端设备之间的侧行链路不适合进行侧行链路定位。例如，第一终端设备与第二终端设备之间的传输路径都为非视距(non line of sight，NLOS)径。不利于第一终端设备与第二终端设备进行侧行链路定位，影响第一终端设备与第二终端设备之间进行侧行链路定位的精度。第二终端设备可以指示第一终端设备上报第一终端设备的标识信息。然后，第二终端设备向定位管理设备请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。第一请求包括该第一终端设备的标识信息。这样定位管理设备可以基于第一终端设备发送的标识信息和第一请求携带的第一终端设备的标识信息识别该第一终端设备。然后，定位管理设备可以通过多种方式辅助对第一终端设备和/或第二终端设备进行侧行链路定位和/或测距。或者，定位管理设备可以通过多种方式辅助对第一终端设备和/或第二终端设备进行NR定位和/或测距。
例如，定位管理设备可以通过NR定位流程单独对第一终端设备进行定位测量，以及单独对第二终端设备定位测量。可选的，定位管理设备可以将定位测量得到的测量结果发送给第一终端设备和/或第二终端设备。
例如，定位管理设备可以选择第三终端设备，并指示第三终端设备分别与第一终端设备和第二终端设备之间进行侧行链路定位和/或测距。第三终端设备可以将侧行链路定位和/或测距得到的测量结果发送给第一终端设备、第二终端设备和/或定位管理设备。
本申请实施例中，定位管理设备接收来自第一终端设备的标识信息。定位管理设备接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的标识信息。定位管理设备根据第一终端设备发送的标识信息和第一请求识别第一终端设备。由此可知，定位管理设备可以识别第一终端设备。从而便于定位管理设备对第一终端设备和/或第二终端设备进行定位测量和/或测距。从而支持定位管理设备发起或辅助第一终端设备与第二终端设备之间的定位测量和/或测距。
图6为本申请实施例侧行链路通信方法的另一个实施例示意图。请参阅图6，侧行链路通信方法包括：
601、第二终端设备向定位管理设备发送第一请求。第一请求包括第一终端设备的第一类型标识。相应的，定位管理设备接收来自第二终端设备的第一请求。
其中，第一请求用于请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。
第一终端设备的第一类型标识是第二终端设备基于侧行链路获取到的。第一终端设备的第一类型标识用于第一终端设备所在的侧行链路上的终端设备发现该第一终端设备。
可选的，第一请求为MO-LR，或，第一请求为LPP消息。可选的，第一终端设备的第一类型标识包括第一终端设备的层2标识、或第一终端设备的应用层标识。其中，层2标识包括以下至少一项：源层2标识、或目标层2标识。关于源层2标识和目标层2标识请参阅前文相关介绍。
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
需要说明的是，上述仅仅示出了应用层标识的一些示例，前述技术术语仅以基于邻近服务直接发现流程为示例介绍了应用层标识。实际应用中，其他侧行链路相关的应用层标识本申请均适用，具体本申请不做限定。
可选的，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，基于邻近服务发现用户设备标识，或受限基于邻近服务应用用户设备标识。关于这些标识请参阅前文术语中的相关介绍。
602、定位管理设备向基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器发送第二请求。第二请求包括第一终端设备的第一类型标识。相应的，基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器接收来自定位管理设备的第二请求。
其中，第二请求用于请求该第一终端设备的第二类型标识。第一终端设备的第二类型标识是定位管理设备可识别的第一终端设备的标识。可选的，第一终端设备的第二类型标识包括第一终端设备的SUPI、 GUTI、或IMSI。
定位管理设备接收到第一终端设备的第一类型标识之后，定位管理设备并无法识别第一终端设备。定位管理设备可以向基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器请求该第一终端设备的第二类型标识。
需要说明的是，上述步骤602示出了定位管理设备向基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器请求该第一终端设备的第二类型标识。实际应用中，定位管理设备还可以向其他侧行链路相关的应用服务器或网元请求该第一终端设备的第二类型标识，上述示例不属于对本申请的限定。定位管理设备还可以向其他网元请求该第一终端设备的第二类型标识，所述网元可以为网关设备，如网关移动定位中心(gateway mobile location centre，GMLC)等。
603、基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器向定位管理设备发送第一终端设备的第二类型标识。相应的，定位管理设备接收来自基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器的第一终端设备的第二类型标识。
定位管理设备还可以从其他网元接收该第一终端设备的第二类型标识，所述网元可以为网关设备，如网关移动定位中心(gateway mobile location centre，GMLC)等。
604、定位管理设备根据第一终端设备的第二类型标识识别第一终端设备。
在该实现方式中，当第二终端设备有定位需求时，第二终端设备与第一终端设备之间的侧行链路不适合进行侧行链路定位。例如，第一终端设备与第二终端设备之间的传输路径为非视距径，不利于第一终端设备与第二终端设备进行侧行链路定位，影响第一终端设备与第二终端设备之间进行侧行链路定位的精度。第二终端设备可以向定位管理设备请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。第一请求包括该第一终端设备的第一类型标识。定位管理设备可以基于该第一终端设备的第一类型标识向基于邻近服务功能网元、5G DDNMF、基于邻近服务功能服务器、或V2X应用服务器请求第一终端设备的第二类型标识。这样定位管理设备可以基于该第一终端设备的第二类型标识识别该第一终端设备。这样定位管理设备在后续发起侧行链路定位请求时，可以使用和识别该第一终端设备的第一类型标识。或者，定位管理设备可以采用NR定位流程对第一终端设备和/或第二终端设备分别进行定位测量。例如，定位管理设备可以选择第三终端设备，并指示第三终端设备分别与第一终端设备和第二终端设备之间进行侧行链路定位和/或测距。第三终端设备可以将侧行链路定位和/或测距得到的测量结果发送给第一终端设备、第二终端设备和/或定位管理设备。
本申请实施例中，定位管理设备接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备和/或第二终端设备进行定位测量和/或测距。第一请求包括第一终端设备的第一类型标识，第一类型标识是第二终端设备基于侧行链路获取到的。然后，定位管理设备向基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送第二请求，第二请求用于请求第一终端设备的第一类型标识。第二请求包括所述第一终端设备的第一类型标识。定位管理设备接收来自基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送的第一终端设备的第二类型标识；定位管理设备根据第一终端设备的第二类型标识识别第一终端设备。从而便于定位管理设备为第一终端设备和/或第二终端设备进行定位测量和/或测距。
上述各个方法实施例可以单独实施，也可以结合实施。各实施例中涉及的术语和相关技术可以互相参考。也就是说不同实施例之间不矛盾或逻辑上没有冲突的技术方案之间是可以相互结合的，具体本申请不做限定。
下面对本申请提供的通信装置进行描述。请参阅图7，本申请实施例通信装置700的一种结构示意图。通信装置700包括处理模块701和收发模块702。
可选的，当通信装置700包括第一终端设备，或者第一终端设备内的芯片时，通信装置700可以用于执行上述图2至图4所示的实施例中的第一终端设备执行的全部或部分步骤，具体可以参考上述图2至图4所示的方法实施例中的相关描述。通信装置700用于执行如下方案：
处理模块701，用于确定通信装置700的标识信息，通信装置700的标识信息用于通信装置700所在的侧行链路上的终端设备发现通信装置700；
收发模块702，用于向定位管理设备发送通信装置700的标识信息。
一种可能的实现方式中，收发模块702还用于：
接收来自定位管理设备的第一请求，第一请求用于请求通信装置700上报通信装置700的标识信息。
另一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示通信装置700上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，收发模块701还用于：
接收来自第二终端设备发送的第二请求，所述第二请求用于请求所述通信装置700上报通信装置700的标识信息。
另一种可能的实现方式中，第二请求还包括第二指示信息，所述第二指示信息用于指示通信装置700上报的标识类型，所述标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，处理模块702还用于：
监测侧行链路消息；
收发模块701还用于：
若侧行链路消息中包括该通信装置700的标识信息，则接收来自第二终端设备的侧行链路消息；
处理模块702还用于：
与第二终端设备建立侧行链路连接；
与所述第二终端设备进行侧行链路定位和/或测距。
另一种可能的实现方式中，收发模块701还用于：
向定位管理设备发送第一测量结果，第一测量结果是通信装置700与第二终端设备进行侧行链路定位和/或测距得到的。
另一种可能的实现方式中，通信装置700的标识信息包括通信装置700的层2标识、或应用层标识。
另一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
另一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
另一种可能的实现方式中，通信装置700的标识信息还包括以下至少一项：通信装置700的层2标识或应用层标识的有效时间、更新周期。
下面对本申请提供的通信装置进行描述。请参阅图8，本申请实施例通信装置800的一种结构示意图。通信装置800包括处理模块801和收发模块802。
通信装置800包括第二终端设备，或者第二终端设备内的芯片时，通信装置800可以用于执行上述图2至图4所示的实施例中的第二终端设备执行的全部或部分步骤，具体可以参考上述图2至图4所示的方法实施例中的相关描述。通信装置800用于执行如下方案：
收发模块802，用于接收来自定位管理设备的第三请求，第三请求用于请求第一终端设备与通信装置800之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息，第一终端设备的标识信息是定位管理设备为第一终端设备分配的，或者是第一终端设备向定位管理设备上报的；向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息；
处理模块801，用于与第一终端设备建立侧行链路连接；与第一终端设备之间进行侧行链路定位和/或测距。
一种可能的实现方式中，收发模块802还用于：
向定位管理设备发送第二测量结果，第二测量结果是通信装置800与第一终端设备之间进行侧行链路定位和/或测距得到的。
另一种可能的实现方式中，收发模块802还用于：
向第一终端设备发送第二请求，第二请求用于请求第一终端设备向定位管理设备上报第一终端设备 的标识信息。
另一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，第一终端设备的标识信息包括第一终端设备的层2标识、或应用层标识。
另一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
另一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
另一种可能的实现方式中，第一终端设备的标识信息还包括以下至少一项：第一终端设备的源层2标识或目标层2标识的有效时间、更新周期。
下面对本申请提供的通信装置进行描述。请参阅图9，本申请实施例通信装置900的一种结构示意图。通信装置900包括处理模块901和收发模块902。
可选的，通信装置900包括定位管理设备，或者定位管理设备内的芯片时，通信装置900可以用于执行上述图2至图4所示的实施例中的定位管理设备执行的全部或部分步骤，具体可以参考上述图2至图4所示的方法实施例中的相关描述。
可选的，通信装置900用于执行如下方案：
处理模块901，用于获取第一终端设备的标识信息，第一终端设备的标识信息用于第二终端设备发现第一终端设备；
收发模块902，用于向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
一种可能的实现方式中，收发模块902还用于：
接收来自第一终端设备的第一测量结果和/或来自第二终端设备的第二测量结果，第一测量结果和/或第二测量结果是第一终端设备与第二终端设备之间进行侧行链路定位和/或测距得到的。
另一种可能的实现方式中，收发模块902还用于：
接收来自第一终端设备的标识信息。
另一种可能的实现方式中，收发模块902还用于：
向第一终端设备发送第一请求，第一请求用于请求第一终端设备上报第一终端设备的标识信息。
另一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，处理模块901具体用于：
为第一终端设备分配第一终端设备的标识信息；
收发模块902还用于：
向第一终端设备发送第一终端设备的标识信息。
另一种可能的实现方式中，第一终端设备的标识信息包括第一终端设备的层2标识、或应用层标识。
另一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
另一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
另一种可能的实现方式中，第一终端设备的标识信息还包括以下至少一项：第一终端设备的源层2标识或目标层2标识的有效时间、更新周期。
可选的，通信装置900还可以用于执行图5所示的实施例中定位管理设备执行的全部或部分步骤。 通信装置900也可以用于执行如下方案：
收发模块902，用于接收来自第一终端设备的标识信息；接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的标识信息；
处理模块901，用于根据第一终端设备发送的标识信息和第一请求识别第一终端设备。
可选的，通信装置900还可以用于执行图6所示的实施例中定位管理设备执行的全部或部分步骤。通信装置900还可以用于执行如下方案：
收发模块902，用于接收来自第二终端设备的第一请求，第一请求用于请求对第一终端设备/或第二终端设备进行定位测量和/或测距，第一请求包括第一终端设备的第一类型标识，第一类型标识是第二终端设备基于侧行链路获取到的；向基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或车到万物V2X应用服务器发送第二请求，第二请求用于请求第一终端设备的第二类型标识，第二请求包括第一终端设备的第一类型标识；接收来自所述基于邻近服务功能、5G DDNMF、基于邻近服务功能服务器或V2X应用服务器发送的第一终端设备的第二类型标识；
处理模块901，用于根据第一终端设备的第二类型标识识别第一终端设备。
可选的，通信装置900包括定位管理设备，或者定位管理设备内的芯片时，通信装置900可以用于执行上述步骤2001至步骤2007中定位管理设备执行的全部或部分步骤，具体可以参考上述步骤2001至步骤2007中的相关描述。
处理模块901，用于确定第一终端设备的标识信息，该第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备；
收发模块902，用于向第二终端设备发送第一终端设备的标识信息。
一种可能的实现方式中，收发模块902具体用于：
向第二终端设备发送第三请求，第三请求用于请求第一终端设备与第二终端设备之间进行侧行链路定位和/或测距，第三请求包括第一终端设备的标识信息。
另一种可能的实现方式中，收发模块902具体用于：
接收来自第一终端设备的第一测量结果和/或来自第二终端设备的第二测量结果，第一测量结果和/或第二测量结果是第一终端设备与第二终端设备之间进行侧行链路定位和/或测距得到的。
另一种可能的实现方式中，收发模块902具体用于：
接收来自第一终端设备的标识信息。
另一种可能的实现方式中，收发模块902还用于：
向第一终端设备发送第一请求，第一请求用于请求第一终端设备上报第一终端设备的标识信息。
另一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，处理模块901具体用于：
为第一终端设备分配第一终端设备的标识信息；
收发模块902还用于：
向第一终端设备发送第一终端设备的标识信息。
下面对本申请提供的通信装置进行描述。请参阅图10，本申请实施例通信装置1000的一种结构示意图。通信装置1000包括收发模块1001。可选的，通信装置1000还包括处理模块1002。
可选的，通信装置1000包括第一终端设备，或者第一终端设备内的芯片时，通信装置1000可以用于执行上述图5所示的实施例中的第一终端设备执行的全部或部分步骤，具体可以参考上述图5所示的方法实施例中的相关描述。通信装置1000用于执行如下方案：
收发模块1001，用于接收来自第二终端设备的第一指示信息或第一消息，第一指示信息或第一消息用于指示通信装置1000向定位管理设备上报通信装置1000的标识信息；向定位管理设备发送通信装置1000的标识信息。
一种可能的实现方式中，第一指示信息或第一消息还用于指示通信装置1000上报的标识信息的标 识类型，标识类型包括层2标识或应用层标识。
一种可能的实现方式中，通信装置1000的标识信息包括通信装置1000的层2标识、或应用层标识。
另一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
另一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
另一种可能的实现方式中，通信装置1000的标识信息还包括以下至少一项：通信装置1000的层2标识或目标层2标识的有效时间、更新周期。
可选的，通信装置1000包括第一终端设备，或者第一终端设备内的芯片时，通信装置1000可以用于执行上述步骤2001至步骤2007中第一终端设备执行的全部或部分步骤，具体可以参考上述步骤2001至步骤2007中的相关描述。通信装置1000用于执行如下方案：
收发模块1001，用于向定位管理设备发送通信装置1000的标识信息，该通信装置1000的标识信息用于其他终端设备在定位和/或测距流程中识别通信装置1000；接收来自第二终端设备的侧行链路消息，该侧行链路消息包括该通信装置1000的标识信息。
一种可能的实现方式中，处理模块1002，用于与第二终端设备建立侧行链路连接；与第二终端设备进行侧行链路定位和/或测距。
一种可能的实现方式中，收发模块1001还用于：
向定位管理设备发送第一测量结果，第一测量结果是通信装置1000与第二终端设备进行侧行链路定位和/或测距得到的。
另一种可能的实现方式中，收发模块1001还用于：
接收来自定位管理设备的第一请求，第一请求用于请求通信装置1000上报通信装置1000的标识信息。
另一种可能的实现方式中，第一请求还包括第一指示信息，第一指示信息用于指示通信装置1000上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，收发模块1001还用于：
接收来自第二终端设备发送的第二请求，第二请求用于请求通信装置1000上报通信装置1000的标识信息。
另一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示通信装置1000上报的标识类型，标识类型包括层2标识或应用层标识。
下面对本申请提供的通信装置进行描述。请参阅图11，本申请实施例通信装置1100的一种结构示意图。通信装置1100包括收发模块1101。可选的，通信装置1100还包括处理模块1102。
可选的，通信装置1100包括第二终端设备，或者第二终端设备内的芯片时，通信装置1100可以用于执行上述图5所示的实施例中的第二终端设备执行的全部或部分步骤，具体可以参考上述图5所示的方法实施例中的相关描述。通信装置1100用于执行如下方案：
收发模块1101，用于向第一终端设备发送第一指示信息或第一消息，第一指示信息或第一消息用于指示第一终端设备向定位管理设备上报第一终端设备的标识信息；向定位管理设备发送第一请求，第一请求用于请求对第一终端设备/或通信装置1100进行定位测量和/或测距，第一请求包括第一终端设备的标识信息。
一种可能的实现方式中，第一指示信息或第一消息还用于指示第一终端设备上报的标识信息的标识类型，标识类型包括层2标识或应用层标识。
一种可能的实现方式中，第一终端设备的标识信息包括第一终端设备的层2标识、或应用层标识。
另一种可能的实现方式中，层2标识包括以下至少一项：源层2标识、或目标层2标识；
应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服 务发现流程的标识、或测距应用层标识。
另一种可能的实现方式中，用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
另一种可能的实现方式中，第一终端设备的标识信息还包括以下至少一项：第一终端设备的源层2标识或目标层2标识的有效时间、更新周期。
可选的，通信装置1100包括第二终端设备，或者第二终端设备内的芯片时，通信装置1100可以用于执行上述步骤2001至步骤2007中第二终端设备执行的全部或部分步骤，具体可以参考步骤2001至步骤2007中的相关描述。通信装置1100用于执行如下方案：
收发模块1101，用于接收来自定位管理设备的第一终端设备的标识信息，第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别第一终端设备；向第一终端设备发送侧行链路消息，该侧行链路消息包括第一终端设备的标识信息。
一种可能的实现方式中，收发模块1101还用于：
向第一终端设备发送第二请求，第二请求用于请求第一终端设备向定位管理设备上报第一终端设备的标识信息。
另一种可能的实现方式中，第二请求还包括第二指示信息，第二指示信息用于指示第一终端设备上报的标识类型，标识类型包括层2标识或应用层标识。
另一种可能的实现方式中，收发模块1101具体用于：
接收来自定位管理设备的第三请求，第三请求包括第一终端设备的标识信息，第三请求用于请求第一终端设备与通信装置1100之间进行侧行链路定位和/或测距。
另一种可能的实现方式中，处理模块1102，用于与第一终端设备建立侧行链路连接；与第一终端设备进行侧行链路定位和/或测距。
另一种可能的实现方式中，收发模块1101还用于：
向定位管理设备发送第二测量结果，第二测量结果是通信装置1100与第一终端设备之间进行侧行链路定位和/或测距得到的。
下面通过图12示出通信装置为终端设备的一种可能的结构示意图。
图12示出了一种简化的终端设备的结构示意图。为了便于理解和图示方式，图12中，终端设备以手机作为例子。如图12所示，终端设备包括处理器、存储器、射频电路、天线及输入输出装置。
处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。
射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。
天线主要用于收发电磁波形式的射频信号。
输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
为便于说明，图12中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图12所示，终端设备包括收发单元1210和处理单元1220。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。
可选的，可以将收发单元1210中用于实现接收功能的器件视为接收单元，将收发单元1210中用于实现发送功能的器件视为发送单元，即收发单元1210包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1210用于执行上述方法实施例中第一终端设备或第二终端设备的发送操作和接收操作，处理单元1220用于执行上述方法实施例中第一终端设备或第二终端设备上除了收发操作之外的其他操作。
当该终端设备为芯片时，该芯片包括收发单元和处理单元。其中，该收发单元可以是输入输出电路或通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路或者逻辑电路。
本申请还提供一种通信装置，请参阅图13，本申请实施例中通信装置1300的另一个结构示意图。通信装置1300包括处理器1301。可选的，通信装置1300还包括存储器1302和收发器1303。
可选的，处理器1301、存储器1302和收发器1303分别通过总线相连，存储器中存储有计算机指令。
通信装置1300包括定位管理设备，或定位管理设备内的芯片时，通信装置1300用于执行图2至图6所示的实施例中定位管理设备执行的步骤。
本申请实施例还提供了一种通信系统，通信系统包括第二终端设备和定位管理设备。第二终端设备用于执行上述图2至图4所示的实施例以及上述步骤2001至步骤2007所示的实施例中第二终端设备执行的全部或部分步骤。定位管理设备用于执行上述图2至图4所示的实施例以及上述步骤2001至步骤2007所示的实施例中定位管理设备执行的全部或部分步骤。
可选的，通信系统还包括第一终端设备，第一终端设备用于执行上述图2至图4所示的实施例、上述步骤2001至步骤2007所示的实施例中第一终端设备执行的全部或部分步骤。
本申请实施例还提供了一种通信系统，通信系统包括第一终端设备、第二终端设备和定位管理设备。第一终端设备用于执行上述图5所示的实施例中第一终端设备执行的全部或部分步骤。第二终端设备用于执行上述图5所示的实施例中第二终端设备执行的全部或部分步骤。定位管理设备用于执行上述图5所示的实施例中定位管理设备执行的全部或部分步骤。
本申请实施例还提供了一种通信系统，通信系统包括第二终端设备和定位管理设备。第二终端设备用于执行上述图6所示的实施例中第二终端设备执行的全部或部分步骤。定位管理设备用于执行上述图6所示的实施例中定位管理设备执行的全部或部分步骤。
本申请实施例还提供一种包括计算机指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如上述图2至图6所示的实施例以及上述步骤2001至步骤2007所示的实施例中的方法。
本申请实施例还提供了一种计算机可读存储介质，包括计算机指令，当计算机指令在计算机上运行时，使得计算机执行如上述图2至图6所示的实施例以及上述步骤2001至步骤2007所示的实施例中的方法。
本申请实施例还提供一种芯片装置，包括处理器，用于调用存储器中存储的计算机程序或计算机指令，以使得处理器执行上述图2至图6所示的实施例以及上述步骤2001至步骤2007所示的实施例中的方法。
可选的，处理器通过接口与存储器耦合。
可选的，芯片装置还包括存储器，存储器中存储有计算机程序或计算机指令。
其中，上述任一处提到的处理器，可以是一个通用中央处理器，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述图2至图6所示的实施例以及上述步骤2001至步骤2007所示的实施例中的方法的程序执行的集成电路。上述任一处提到的存储器可以为只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式 实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (34)

  1. 一种侧行链路通信方法，其特征在于，所述方法包括：
    第一终端设备向定位管理设备发送所述第一终端设备的标识信息，所述第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；
    所述第一终端设备接收来自第二终端设备的侧行链路消息，所述侧行链路消息包括所述第一终端设备的标识信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端设备向定位管理设备发送所述第一终端设备的标识信息之前，所述方法还包括：
    所述第一终端设备接收来自所述定位管理设备的第一请求，所述第一请求用于请求所述第一终端设备上报所述第一终端设备的标识信息。
  3. 根据权利要求2所述的方法，其特征在于，所述第一请求还包括第一指示信息，所述第一指示信息用于指示所述第一终端设备上报的标识类型，所述标识类型包括层2标识或应用层标识。
  4. 根据权利要求1所述的方法，其特征在于，所述第一终端设备向定位管理设备发送所述第一终端设备的标识信息之前，所述方法还包括：
    所述第一终端设备接收来自第二终端设备发送的第二请求，所述第二请求用于请求所述第一终端设备上报所述第一终端设备的标识信息。
  5. 根据权利要求4所述的方法，其特征在于，所述第二请求还包括第二指示信息，所述第二指示信息用于指示所述第一终端设备上报的标识类型，所述标识类型包括层2标识或应用层标识。
  6. 一种侧行链路通信方法，其特征在于，所述方法包括：
    第二终端设备接收来自定位管理设备的第一终端设备的标识信息，所述第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；
    所述第二终端设备向所述第一终端设备发送侧行链路消息，所述侧行链路消息包括所述第一终端设备的标识信息。
  7. 一种侧行链路通信方法，其特征在于，所述方法包括：
    第二终端设备接收来自定位管理设备的第一终端设备的标识信息，所述第一终端设备的标识信息用于其他终端设备在定位和/或测距流程中识别所述第一终端设备；
    所述第二终端设备根据所述第一终端设备的标识信息发现所述第一终端设备。
  8. 根据权利要求6或7所述的方法，其特征在于，所述第二终端设备接收来自定位管理设备的第一终端设备的标识信息之前，所述方法还包括：
    所述第二终端设备向所述第一终端设备发送第二请求，所述第二请求用于请求所述第一终端设备向定位管理设备上报所述第一终端设备的标识信息。
  9. 根据权利要求8所述的方法，其特征在于，所述第二请求还包括第二指示信息，所述第二指示信息用于指示所述第一终端设备上报的标识类型，所述标识类型包括层2标识或应用层标识。
  10. 根据权利要求7至9中任一项所述的方法，其特征在于，所述第二终端设备接收来自定位管理设备的第一终端设备的标识信息，包括：
    所述第二终端设备接收来自所述定位管理设备的第三请求，所述第三请求包括所述第一终端设备的标识信息，所述第三请求用于请求所述第一终端设备与所述第二终端设备之间进行侧行链路定位和/或测距。
  11. 根据权利要求7至10中任一项所述的方法，其特征在于，所述第一终端设备的标识信息是所述定位管理设备为所述第一终端设备分配的，或者是所述第一终端设备向所述定位管理设备上报的。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备与所述第二终端设备建立侧行链路连接；
    所述第一终端设备与所述第二终端设备之间进行侧行链路定位和/或测距。
  13. 一种侧行链路通信方法，其特征在于，所述方法包括：
    定位管理设备确定第一终端设备的标识信息，所述第一终端设备的标识信息用于其他终端设备在侧 行定位和/或测距流程中识别所述第一终端设备；
    所述定位管理设备向第二终端设备发送所述第一终端设备的标识信息。
  14. 根据权利要求13所述的方法，其特征在于，所述定位管理设备向第二终端设备发送所述第一终端设备的标识信息，包括：
    所述定位管理设备向所述第二终端设备发送第三请求，所述第三请求用于请求所述第一终端设备与所述第二终端设备之间进行侧行链路定位和/或测距，所述第三请求包括所述第一终端设备的标识信息。
  15. 根据权利要求13或14所述的方法，其特征在于，所述定位管理设备确定第一终端设备的标识信息，包括：
    所述定位管理设备接收来自所述第一终端设备的标识信息。
  16. 根据权利要求15所述的方法，其特征在于，所述定位管理设备接收来自所述第一终端设备的标识信息之前，所述方法还包括：
    所述定位管理设备向所述第一终端设备发送第一请求，所述第一请求用于请求所述第一终端设备上报所述第一终端设备的标识信息。
  17. 根据权利要求16所述的方法，其特征在于，所述第一请求还包括第一指示信息，所述第一指示信息用于指示所述第一终端设备上报的标识类型，所述标识类型包括层2标识或应用层标识。
  18. 根据权利要求13或14所述的方法，其特征在于，所述定位管理设备确定第一终端设备的标识信息，包括：
    所述定位管理设备为所述第一终端设备分配所述第一终端设备的标识信息；
    所述方法还包括：
    所述定位管理设备向所述第一终端设备发送所述第一终端设备的标识信息。
  19. 根据权利要求1至18中任一项所述的方法，其特征在于，所述第一终端设备的标识信息包括所述第一终端设备的层2标识、或应用层标识。
  20. 根据权利要求19所述的方法，其特征在于，所述层2标识包括以下至少一项：源层2标识、或目标层2标识；
    所述应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
  21. 根据权利要求20所述的方法，其特征在于，所述用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限的基于邻近服务应用用户设备标识RPAUID，或基于邻近服务发现用户设备标识PDUID。
  22. 根据权利要求19至21中任一项所述的方法，其特征在于，所述第一终端设备的标识信息还包括以下至少一项：所述第一终端设备的源层2标识或目标层2标识的有效时间、更新周期。
  23. 一种侧行链路通信方法，其特征在于，所述方法包括：
    定位管理设备接收来自第二终端设备的第一请求，所述第一请求用于请求对第一终端设备和/或第二终端设备进行定位测量和/或测距，所述第一请求包括所述第一终端设备的第一类型标识，所述第一类型标识是所述第二终端设备基于侧行链路获取到的；
    所述定位管理设备向基于邻近服务功能网元、第五代移动通信直接发现名称管理5G DDNMF、基于邻近服务功能服务器、车到万物V2X应用服务器、或网关移动定位中心GMLC发送第二请求，所述第二请求用于请求所述第一终端设备的第二类型标识，所述第二请求包括所述第一终端设备的第一类型标识；
    所述定位管理设备接收来自所述基于邻近服务功能网元、所述5G DDNMF、所述基于邻近服务功能服务器、所述V2X应用服务器、或所述GMLC的所述第一终端设备的第二类型标识；
    所述定位管理设备根据所述第一终端设备的第二类型标识识别所述第一终端设备。
  24. 根据权利要求23所述的方法，其特征在于，所述第一终端设备的第一类型标识包括所述第一终端设备的层2标识、或所述第一终端设备的应用层标识。
  25. 根据权利要求24所述的方法，其特征在于，所述层2标识包括以下至少一项：源层2标识、或目标层2标识；
    所述应用层标识包括以下至少一项：基于邻近服务应用层标识、车到万物应用层标识、用于基于邻近服务发现流程的标识、或测距应用层标识。
  26. 根据权利要求25所述的方法，其特征在于，所述用于基于邻近服务发现流程的标识，包括以下至少一项：基于邻近服务应用标识,应用标识，用户信息标识，受限基于邻近服务应用用户设备标识，或基于邻近服务发现用户设备标识。
  27. 根据权利要求23至26中任一项所述的方法，其特征在于，所述第一终端设备的第二类型标识包括所述第一终端设备的用户永久标识SUPI、全球唯一的临时标识GUTI、或国际移动用户识别码IMSI。
  28. 一种通信系统，其特征在于，所述通信系统包括第二终端设备和定位管理设备，所述第二终端设备用于执行如权利要求6、8至11、19至22中任一项所述的方法或执行如权利要求7至11、19至22中任一项所述的方法，所述定位管理设备用于执行如权利要求13至22中任一项所述的方法。
  29. 根据权利要求28所述的通信系统，其特征在于，所述通信系统还包括第一终端设备，所述第一终端设备用于执行如权利要求1至5、12中任一项所述的方法。
  30. 一种通信装置，其特征在于，所述通信装置包括收发模块；
    所述收发模块用于执行如权利要求1至5、12中任一项所述的收发操作；或者，
    所述收发模块用于执行如权利要求6、8至11、19至22中任一项所述的收发操作；或者，
    所述收发模块用于执行如权利要求7至11、19至22中任一项所述的收发操作。
  31. 根据权利要求30所述的通信装置，其特征在于，所述通信装置还包括处理模块；
    当所述收发模块用于执行如权利要求1至5、12中任一项所述的收发操作，所述处理模块用于执行如权利要求1至5、12中任一项所述的处理操作；或者，
    当所述收发模块用于执行如权利要求6、8至11、19至22中任一项所述的收发操作，所述处理模块用于执行如权利要求6、8至11、19至22中任一项所述的处理操作；或者，
    当所述收发模块用于执行如权利要求7至11、19至22中任一项所述的收发操作，所述处理模块用于执行如权利要求7至11、19至22中任一项所述的处理操作。
  32. 一种通信装置，其特征在于，所述通信装置包括收发模块和处理模块；
    所述收发模块用于执行如权利要求13至22中任一项所述的收发操作，所述处理模块用于执行如权利要求13至22中任一项所述的处理操作；或者，
    所述收发模块用于执行如权利要求23至27中任一项所述的收发操作，所述处理模块用于执行如权利要求23至27中任一项所述的处理操作。
  33. 一种通信装置，其特征在于，所述通信装置包括处理器，所述处理器用于执行存储器中的计算机程序或计算机指令，以执行如权利要求1至5、12中任一项所述的方法；或者，以执行如权利要求6、8至11、19至22中任一项所述的方法；或者，以执行如权利要求7至11、19至22中任一项所述的方法；或者，以执行如权利要求13至22中任一项所述的方法；或者，以执行如权利要求23至27中任一项所述的方法。
  34. 一种计算机可读存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被通信装置执行时，使得所述通信装置执行如权利要求1至5、12任一项所述的方法，或者，使得所述通信装置执行如权利要求6、8至11、19至22中任一项所述的方法，或者，使得所述通信装置执行如权利要求7至11、19至22中任一项所述的方法，或者，使得所述通信装置执行如权利要求13至22中任一项所述的方法，或者，使得所述通信装置执行如权利要求23至27中任一项所述的方法。
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