WO2023212958A1 - 测距侧行链路定位方法、终端、电子设备及存储介质 - Google Patents

测距侧行链路定位方法、终端、电子设备及存储介质 Download PDF

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Publication number
WO2023212958A1
WO2023212958A1 PCT/CN2022/091316 CN2022091316W WO2023212958A1 WO 2023212958 A1 WO2023212958 A1 WO 2023212958A1 CN 2022091316 W CN2022091316 W CN 2022091316W WO 2023212958 A1 WO2023212958 A1 WO 2023212958A1
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WIPO (PCT)
Prior art keywords
terminal
ranging
sidelink
sidelink positioning
positioning
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PCT/CN2022/091316
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English (en)
French (fr)
Inventor
沈洋
刘建宁
梁浩然
Original Assignee
北京小米移动软件有限公司
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Filing date
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/091316 priority Critical patent/WO2023212958A1/zh
Priority to CN202280001457.7A priority patent/CN117378254A/zh
Publication of WO2023212958A1 publication Critical patent/WO2023212958A1/zh

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    • 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

Definitions

  • the present disclosure relates to the field of communication technology. Specifically, the present disclosure relates to a ranging sidelink positioning method, a terminal, an electronic device and a storage medium.
  • Ranging refers to determining the distance between two or more User Equipment (UE) and/or the direction and/or the direction between one UE (i.e. target UE) and another UE (i.e. reference UE) through the PC5 interface.
  • UE User Equipment
  • UE User Equipment
  • relative positioning refers to using the PC5 interface to position the UE.
  • Ranging-based services and sidelink positioning include distance measurement and/or direction measurement, and the UE is allowed to request distance measurement and/or direction measurement in the service.
  • the existing technology only supports direct ranging/sidelink positioning between the reference UE and the target UE.
  • Embodiments of the present disclosure provide a ranging method, device, electronic device, and computer-readable storage medium for sidelink positioning, which can solve the above problems of the prior art.
  • the technical solutions are as follows:
  • a method for ranging sidelink positioning includes:
  • the first indication information is used to indicate that the auxiliary terminal is allowed to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • a method for ranging sidelink positioning includes:
  • a first terminal including:
  • a first request sending module configured to broadcast a first ranging sidelink positioning request, where the first ranging sidelink positioning request includes first indication information
  • the first indication information is used to indicate that the auxiliary terminal is allowed to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • a third terminal including:
  • a first request receiving module configured to receive a first ranging sidelink positioning request broadcast by the first terminal
  • a candidate participation module configured to determine candidates to participate in the third terminal based on predetermined authorization information indicating that the third terminal serves as a candidate auxiliary terminal and the first indication information in the first ranging sidelink positioning request. Ranging sidelink positioning between a terminal and a second terminal.
  • an electronic device includes a memory, a processor, and a computer program stored on the memory.
  • the processor executes the computer program to implement the steps of the above method.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.
  • the first ranging sidelink positioning request includes first indication information, and the first indication information is used to indicate that the auxiliary terminal is allowed to participate in the communication between the first terminal and the second terminal.
  • Ranging sidelink positioning avoids the problem that two terminals cannot perform distance sidelink positioning when they cannot be directly connected. Ranging sidelink positioning can be performed through lightweight signaling.
  • Figure 1 is a schematic flow chart of a first terminal side ranging sidelink positioning method provided by an embodiment of the present disclosure
  • Figure 2 is a schematic flow chart of a ranging sidelink positioning method on the third terminal side provided by an embodiment of the present disclosure
  • Figure 3 is an interactive schematic diagram of ranging sidelink positioning provided by an embodiment of the present disclosure
  • Figure 4 is a schematic structural diagram of a first terminal provided by an embodiment of the present disclosure.
  • Figure 5 is a schematic structural diagram of a second terminal provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.
  • connection or “coupled” as used herein may include wireless connections or wireless couplings.
  • the term “and/or” is used herein to indicate at least one of the items defined by the term. For example, “A and/or B” can be implemented as “A”, or as “B”, or as “A and B” ".
  • the ranging sidelink positioning method, device, electronic equipment, computer-readable storage medium and computer program product provided by the present disclosure are intended to solve the above technical problems of the prior art.
  • the method and the device are based on the same application concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated details will not be repeated.
  • GSM Global System Of Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability For Microwave Access
  • 5G New Radio, NR 5G New Radio, NR
  • the terminal (device) involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to the user, a handheld device with a wireless connection function, or other processing equipment connected to a wireless modem, etc.
  • the names of terminal equipment may also be different.
  • the terminal equipment may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN).
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone").
  • “Telephone) and computers with mobile terminal devices which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
  • mobile terminal devices which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistants
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), remote station (Remote Station), access point (Access Point) , remote terminal equipment (Remote Terminal), access terminal equipment (Access Terminal), user terminal equipment (User Terminal), user agent (User Agent), and user device (User Device) are not limited in the embodiments of the present disclosure.
  • An embodiment of the present disclosure provides a ranging sidelink positioning method on the first terminal side. As shown in Figure 1, the method includes:
  • Step 101 Broadcast a first ranging sidelink positioning request, where the first ranging sidelink positioning request includes first indication information;
  • the first indication information is used to indicate that the auxiliary terminal is allowed to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the first ranging sidelink positioning request of the present disclosure may include the unique identifier of the first terminal, the unique identifier of the second terminal, specific service content, and first indication information.
  • At least one of the unique identifier of the first terminal, the unique identifier of the second terminal, and specific service content may also be recorded in the first indication information.
  • the first terminal in this embodiment of the present disclosure may be a reference UE (Target UE).
  • the second terminal may be a target UE (Reference UE).
  • the first terminal may broadcast the first ranging sidelink positioning request in the current Public Land Mobile Network (Public Land Mobile Network, PLMN), so that other terminals in the current PLMN may receive the first ranging sidelink Location request.
  • PLMN Public Land Mobile Network
  • the specific service content may be a ranging service, such as requesting a service to determine the distance between a first terminal and a second terminal; it may also be a request for a sidelink positioning service, such as a request to determine the distance between a first terminal and a second terminal.
  • Positioning (such as direction determination and/or relative positioning) services; ranging services and sidelink positioning services can also be requested at the same time, which is not specifically limited in this disclosure.
  • the first ranging sidelink positioning request may include Quality of Service (QoS) requirements, which refers to performance indicators such as accuracy and delay of ranging sidelink positioning.
  • QoS Quality of Service
  • the auxiliary terminal (Assistant UE) of the present disclosure has the ability to serve as an auxiliary terminal and participate in ranging sidelink positioning between the two terminals.
  • the auxiliary terminal can communicate with two terminals respectively, and initiate ranging sidelink positioning with the first terminal and the second terminal respectively, so that the first terminal can respond to the first terminal and the second terminal.
  • the ranging sidelink positioning results between terminals it should be understood that the ranging sidelink positioning between the first terminal and the second terminal is based on the measurement results between the auxiliary terminal and the first terminal and the second terminal respectively. Obtained from sidelink positioning.
  • Embodiments of the present disclosure set the first indication information in the first ranging sidelink positioning request to notify other terminals in the current PLMN to perform ranging sidelink with the participation of another terminal (such as an auxiliary terminal). Road positioning is acceptable.
  • the auxiliary terminal is used to participate in ranging side link positioning between the first terminal and the second terminal.
  • the ranging sidelink positioning method provided by the present disclosure broadcasts a first ranging sidelink positioning request.
  • the first ranging sidelink positioning request includes first indication information, and the first indication information is used to indicate permission.
  • the auxiliary terminal participates in the ranging sidelink positioning between the first terminal and the second terminal, which avoids the problem that the two terminals cannot perform distance sidelink positioning when they cannot be directly connected. It can use lightweight signaling Perform ranging sidelink positioning.
  • the first terminal broadcasts a first ranging sidelink positioning request
  • the first ranging sidelink positioning request includes first indication information
  • the first indication information is used to allow the auxiliary terminal to participate Ranging sidelink positioning between the first terminal and the second terminal. If the auxiliary terminal in the current PLMN receives the first ranging sidelink positioning request, it can send response information to the first terminal to indicate that it has As an auxiliary terminal, it has the ability to participate in the ranging sidelink positioning between the first terminal and the second terminal.
  • the first terminal uses the auxiliary terminal to complete the ranging sidelink positioning between the first terminal and the second terminal.
  • the first indication information is used to instruct the candidate auxiliary terminal to return first response information to the first terminal according to having discovered the second terminal.
  • a candidate auxiliary terminal is a terminal that has the ability to participate in ranging sidelink positioning between two terminals as an auxiliary terminal, but has not determined to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the candidate auxiliary terminal discovers the second terminal according to receiving the first indication information, and returns the first response information to the first terminal when the second terminal is discovered.
  • the first response information can be used to indicate that the candidate auxiliary terminal itself has discovered the second terminal. .
  • the candidate auxiliary terminal can directly discover the second terminal.
  • the candidate auxiliary terminal may be connected to the second terminal through the PC5 interface when the second terminal is discovered.
  • the ranging sidelink positioning method includes:
  • Step 201 Send a second ranging sidelink positioning request to at least one auxiliary terminal;
  • Embodiments of the present disclosure determine at least one auxiliary terminal from at least one candidate auxiliary terminal based on receiving first response information from at least one candidate auxiliary terminal.
  • the determined auxiliary terminal will participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the embodiment of the present disclosure does not place a specific limit on the number of determined auxiliary terminals. For example, it may be one or multiple.
  • the method of determining an auxiliary terminal from candidate auxiliary terminals is not specifically limited in the embodiments of this disclosure.
  • the determination can be based on the time sequence in which each candidate auxiliary terminal sends the first response information. The faster the candidate auxiliary terminal responds, the closer the distance to the first terminal and/or the second terminal is or the quality of communication. The higher the auxiliary terminal is, the more accurate the sidelink positioning will be.
  • the candidate auxiliary terminal corresponding to the first received first response information is used as the auxiliary terminal.
  • the first terminal can use each auxiliary terminal to perform ranging sidelink positioning with the second terminal.
  • the auxiliary terminal including auxiliary terminal 1 and auxiliary terminal 2 as an example
  • the first terminal and the second terminal respectively perform ranging side link positioning with auxiliary terminal 1 to obtain measurement information
  • the first terminal and the second terminal respectively communicate with auxiliary terminal 2 Perform ranging sidelink positioning to obtain measurement information.
  • the measurement information is shared between the first terminal, the second terminal, the auxiliary terminal 1 and the auxiliary terminal 2 through the auxiliary terminal 1 and the auxiliary terminal 2. Any one of the first terminal, the second terminal, the auxiliary terminal 1 and the auxiliary terminal 2 After obtaining all the measurement information, the terminal calculates the results and sends the results to the first terminal.
  • the second ranging sidelink positioning request in the embodiment of the present disclosure includes second indication information, and the second indication information is used to authorize the candidate auxiliary terminal to participate as an auxiliary terminal between the first terminal and the second terminal. positioning.
  • the second instruction information is also used to instruct the auxiliary terminal to perform ranging sidelink positioning with the first terminal, and initiate measurement to the second terminal. Ranging sidelink positioning, performing ranging sidelink positioning with the second terminal, and serving as a relay for communication between the first terminal and the second terminal to achieve ranging sidelink positioning measurement data and ranging sidelink Sharing of road positioning results.
  • the second indication information may include identities of the first terminal, the second terminal and the auxiliary terminal to indicate the roles of the three terminals in the ranging sidelink positioning process.
  • the second indication information may include the unique identifier of the second terminal to indicate that the ranging sidelink positioning is for the first terminal and the second terminal, so that the auxiliary terminal can clarify its responsibilities: respectively.
  • Embodiments of the present disclosure enable ranging sidelink positioning through lightweight signaling with the help of auxiliary UEs.
  • the auxiliary terminal in the embodiment of the present disclosure performs ranging or side link positioning with the first terminal and the second terminal respectively according to receiving the second instruction information.
  • the road positioning measurement data will be shared among the first terminal, the second terminal and the auxiliary terminal to derive ranging side link positioning results.
  • the ranging sidelink positioning result is determined by the first terminal, the second terminal and/or the at least one auxiliary terminal according to the shared ranging sidelink positioning measurement data.
  • any one or more terminals of the first terminal, the second terminal, and the auxiliary terminal can use the shared ranging sidelink
  • the positioning measurement data generates a ranging sidelink positioning result, and the final ranging sidelink positioning result will be responded to by the first terminal.
  • the first terminal and the second terminal measure sidelink positioning with the auxiliary terminal respectively to obtain measurement information.
  • the measurement information is shared among the first terminal, the second terminal and the auxiliary terminal through the auxiliary terminal.
  • One of the first terminal, the second terminal and the auxiliary terminal, such as the auxiliary terminal, obtains all the measurement information and calculates the results. and send the results to the first terminal.
  • the first indication information is also used to instruct the second terminal to send the first ranging sidelink positioning request to the third terminal according to receiving the first ranging sidelink positioning request.
  • a terminal returns second response information.
  • the second terminal may also be a candidate auxiliary terminal, that is, a terminal that has the ability to participate in ranging sidelink positioning between two terminals as an auxiliary terminal.
  • the candidate The auxiliary terminal will return the second response information to the first terminal, so that the first terminal can establish a direct link with the second terminal, thereby directly performing ranging side link positioning with the second terminal.
  • the first terminal after receiving the second response information returned by the second terminal, can perform ranging sidelink positioning with the second terminal, and can also participate in the interaction between the first terminal and the third terminal based on the auxiliary terminal. Ranging sidelink positioning of two terminals.
  • the first terminal sends a second ranging sidelink positioning request to at least one auxiliary terminal, which also includes:
  • At least one auxiliary terminal is determined from the at least one candidate auxiliary terminal.
  • embodiments of the present disclosure may set a timer with a preset length. When the timer times out, if only the first response information sent by the candidate auxiliary terminal is received but the second response information sent by the second terminal is not received, then no The first response information and the second response information are then received, and at least one auxiliary terminal is determined from at least one candidate auxiliary terminal.
  • This disclosure does not impose specific limitations on the timing of starting the timer. For example, it can be started when the first ranging sidelink positioning request is broadcast, or it can be started when the first terminal receives the first response sent by the first candidate auxiliary terminal. Turn on when messaging.
  • ranging side link positioning is initiated to the second terminal.
  • the first terminal Before the timer expires, when the first terminal receives the second response information, it establishes a direct link with the second terminal and initiates ranging sidelink positioning to the second terminal.
  • the first terminal when the first terminal receives the second response information, the first terminal stops receiving the first response information sent by the candidate auxiliary terminal.
  • Figure 2 exemplarily shows a flowchart of a ranging sidelink positioning method on the third terminal side according to an embodiment of the present disclosure. As shown in the figure, the method includes:
  • the first indication information is used to indicate that the auxiliary terminal is allowed to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the first ranging sidelink positioning request of the present disclosure may include the unique identifier of the first terminal, the unique identifier of the second terminal, specific service content, and first indication information.
  • At least one of the unique identifier of the first terminal, the unique identifier of the second terminal, and specific service content may also be recorded in the first indication information.
  • the first terminal in this embodiment of the present disclosure may be a reference UE (Target UE).
  • the second terminal may be a target UE (Reference UE).
  • the first terminal can broadcast the first ranging sidelink positioning request in the current Public Land Mobile Network (Public Land Mobile Network, PLMN), so that other terminals in the current PLMN may receive the first ranging sidelink Location request.
  • PLMN Public Land Mobile Network
  • the specific service content may be a ranging service, such as requesting a service to determine the distance between a first terminal and a second terminal; it may also be a request for a sidelink positioning service, such as a request to determine the distance between a first terminal and a second terminal.
  • Positioning (such as direction determination and/or relative positioning) services; ranging services and sidelink positioning services can also be requested at the same time, which is not specifically limited in this disclosure.
  • the embodiment of the present disclosure sets the first indication information in the first ranging sidelink positioning request to notify other terminals in the current PLMN to perform ranging sidelink with the participation of another terminal (auxiliary terminal).
  • the positioning is acceptable.
  • the auxiliary terminal is used to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the embodiment of the present disclosure is applicable to a terminal that has been authorized as a candidate auxiliary terminal in advance. That is, if the third terminal receives the first ranging sidelink positioning request sent by the first terminal, if it is predetermined to be authorized as a candidate auxiliary terminal. , then according to the first indication information in the first ranging sidelink positioning request, determine the candidate to participate in the ranging sidelink positioning between the first terminal and the second terminal.
  • Candidates who participate in the ranging sidelink positioning between the first terminal and the second terminal have the ability to participate as an auxiliary terminal in the ranging sidelink positioning between the two terminals, and have the opportunity to participate in the ranging sidelink positioning between the first terminal and the second terminal. Ranging sidelink positioning between second terminals.
  • the ranging sidelink positioning method on the third terminal side of the present disclosure receives the first ranging sidelink positioning request broadcast by the first terminal, and determines the location based on the first indication information in the request and the predetermined indication.
  • lightweight signaling can be used to determine the candidate to participate in the ranging sidelink positioning between the first terminal and the second terminal, avoiding the situation where the two terminals cannot directly An issue where sidelink positioning cannot be performed while connected.
  • the ranging side link positioning method on the third terminal side determines the candidates to participate in the ranging side link between the first terminal and the second terminal.
  • Link positioning also includes:
  • first response information is returned to the first terminal.
  • the third terminal in the embodiment of the present disclosure can start the process of discovering the second terminal, so that when the second terminal is discovered, the third terminal The terminal returns the first response information.
  • the first response information is used to indicate that the third terminal has discovered the second terminal.
  • the first terminal determines that other terminals can be used as auxiliary terminals to perform ranging sidelink positioning with the second terminal.
  • the third terminal may establish a PC5 connection with the second terminal upon discovering the second terminal.
  • the second terminal in the embodiment of the present disclosure determines that the second terminal that the first terminal is looking for is itself based on the first ranging sidelink positioning request. , then the second response information is returned to the first terminal. The second response information is used to indicate that it is the second terminal. By returning the second response information, the first terminal determines that the second terminal has been discovered, so that it can establish a relationship with the second terminal. For a direct link, the first terminal can directly initiate ranging sidelink positioning to the second terminal after establishing a direct link with the second terminal.
  • the ranging sidelink positioning method on the third terminal side also includes:
  • S401 Receive a second ranging sidelink positioning request sent by the first terminal, and determine, according to the second indication information in the second ranging sidelink positioning request, to participate in the first terminal and the first terminal. Ranging sidelink positioning between two terminals.
  • the first terminal When the first terminal sends the second ranging side link positioning request to the third terminal, it means that the first terminal determines to use the third terminal as a relay of the network to participate in the ranging side link between the first terminal and the second terminal.
  • Line link positioning (specifically used for sharing of ranging side link positioning measurement data).
  • the second ranging sidelink positioning request includes second indication information, and the second indication information is used to authorize the third terminal to participate in positioning between the first terminal and the second terminal as an auxiliary terminal.
  • the third terminal may establish a PC5 connection with the second terminal when it determines to participate in positioning, that is, when it receives the second ranging sidelink positioning request.
  • the second indication information is also used to instruct the auxiliary terminal to initiate ranging sidelink positioning to the second terminal, and serve as the first terminal and Relay of second terminal communication to achieve sharing of ranging sidelink positioning measurement data;
  • the ranging sidelink positioning method on the third terminal side also includes: performing ranging sidelink positioning with the first terminal according to the second indication information, and initiating a ranging sidelink positioning to the second terminal. positioning, perform ranging sidelink positioning with the second terminal, and serve as a relay for communication between the first terminal and the second terminal to realize the sharing of ranging sidelink positioning measurement data and ranging sidelink positioning results .
  • the second indication information may include identities of the first terminal, the second terminal and the auxiliary terminal to indicate the roles of the three terminals in the ranging sidelink positioning process.
  • the second indication information may include the unique identifier of the second terminal to indicate that the ranging sidelink positioning is for the first terminal and the second terminal, so that the auxiliary terminal can clarify its responsibilities: respectively. Perform ranging or sidelink positioning with the first terminal and the second terminal, and serve as a relay for communications between the first terminal and the second terminal.
  • the third terminal initiates ranging sidelink positioning to the second terminal, including:
  • the second terminal Since the second indication information is used to instruct the operation auxiliary terminal to participate in the ranging sidelink positioning between the first terminal and the second terminal, the second terminal receives the third ranging sidelink positioning request and can learn the third ranging sidelink positioning request.
  • the terminal serves as an auxiliary terminal for the first terminal and the second terminal and participates in the ranging sidelink positioning between the first terminal and the second terminal. Therefore, the second terminal can perform ranging sidelink positioning with the third terminal.
  • the self-generated ranging sidelink positioning measurement data and ranging sidelink positioning result are shared with the third terminal, or shared with the first terminal through the third terminal.
  • the embodiments of the present disclosure also include:
  • the present disclosure discovers the second terminal by searching for the second terminal in a locally maintained terminal list. If the unique identifier of the second terminal exists in the terminal list, it is determined that the second terminal has been discovered. On the contrary, if it is not found in the terminal list, unique identifier of the second terminal, it is determined that the discovery of the second terminal failed.
  • the embodiments of the present disclosure also include:
  • the process of discovering the second terminal is triggered;
  • the unique identifier of the second terminal is recorded in the terminal list.
  • the embodiment of the present disclosure first uses the method of searching for the second terminal in the local terminal list. If the second terminal is not found locally, the process of discovering the second terminal is triggered, which improves the efficiency and success rate of discovering the second terminal, and After discovering the second terminal, the unique identifier of the second terminal is further recorded in the terminal list, laying a foundation for subsequent rapid discovery of the second terminal. It can be understood that after the third terminal discovers the second terminal, it sends the first response information to the first terminal.
  • the third terminal receives the first positioning request sent by the first terminal, which also includes:
  • the third terminal in the embodiment of the present disclosure determines that it has the ability to participate in ranging sidelink positioning between two terminals as an auxiliary terminal, it will send the third instruction information to the policy control function entity. If the policy control entity determines that the third terminal If the third terminal can serve as a candidate auxiliary terminal at the current PLMN, time and location, authorization information is returned to the third terminal. The authorization information is used to indicate that the third terminal is allowed to perform ranging sidelink positioning as a candidate auxiliary terminal. business.
  • Figure 3 exemplarily shows an interactive schematic diagram of ranging sidelink positioning according to an embodiment of the present disclosure. As shown in the figure,
  • UE1 and UE2 are authorized as the reference UE and target UE for ranging sidelink positioning at the current PLMN, time and location respectively.
  • UE A, UE B and UE C are authorized as the measuring UE at the current PLMN, time and location.
  • UE1 receives the ranging/sidelink positioning request from the is application layer, a third-party UE or the network function entity (NF) in the 5G Core network (5G Core) for measurement between UE1 and UE2 Distance sidelink location.
  • NF network function entity
  • UE1 broadcasts the first ranging sidelink positioning request to UE A, UE B and UE C.
  • the first ranging sidelink positioning request also contains the first indication information.
  • the first indication information may include UE1 and UE2.
  • the unique identifier identifier, ID
  • ranging sidelink positioning content and QoS requirements, etc.
  • UE A, UE B and UE C receive the first ranging sidelink positioning request, check whether UE2 has been found in the local terminal list according to the unique identifier of UE2;
  • UE A successfully discovers UE2 and sends the first response information to UE1.
  • UE1 After UE1 receives the first response information from UE A, it starts the preconfigured timer. When the timer times out and still does not receive the second response information sent by UE2, it is considered that UE A is used for ranging sidelink. Road positioning.
  • UE1 sends a second ranging sidelink positioning request to UE A.
  • the second ranging sidelink positioning request includes second indication information.
  • the second indication information is used to authorize UE A to participate in all tasks as an auxiliary terminal. Describe the ranging sidelink positioning between UE1 and UE2;
  • UE A sends a third ranging sidelink positioning request to UE2 based on receiving the second ranging sidelink positioning request.
  • the third ranging sidelink positioning request includes the first ranging sidelink positioning request. instructional information;
  • the ranging sidelink positioning measurement data is shared among UE1, UE2 and UE A to derive the ranging sidelink positioning results;
  • UE1 responds to the ranging sidelink positioning result.
  • the terminal includes a first request sending module 101, wherein,
  • the first request sending module 101 is configured to broadcast a first ranging sidelink positioning request, where the first ranging sidelink positioning request includes first indication information;
  • the first indication information is used to indicate that the auxiliary terminal is allowed to participate in ranging sidelink positioning between the first terminal and the second terminal.
  • the device in the embodiment of the present disclosure can execute the ranging side link positioning method on the first device side provided by the embodiment of the present disclosure.
  • the implementation principles are similar.
  • Each module in the first terminal in each embodiment of the present disclosure executes The actions correspond to the steps in the ranging side link positioning method on the first device side in each embodiment of the present disclosure.
  • For detailed functional descriptions of each module of the device please refer to the corresponding method shown above. The description will not be repeated here.
  • the first indication information is also used to instruct the candidate auxiliary terminal to return first response information to the first terminal according to the discovery of the second terminal.
  • the first terminal further includes:
  • a second request sending module configured to send a second ranging sidelink positioning request to at least one auxiliary terminal
  • the second ranging sidelink positioning request includes second indication information, and the second indication information is used to authorize the candidate auxiliary terminal to participate as an auxiliary terminal between the first terminal and the second terminal. position;
  • the at least one auxiliary terminal is determined from at least one candidate auxiliary terminal that returns the first response information.
  • the second instruction information is also used to instruct the auxiliary terminal to perform ranging sidelink positioning with the first terminal, initiate ranging sidelink positioning to the second terminal, and communicate with the first terminal.
  • the second terminal performs ranging sidelink positioning and serves as a relay for communication between the first terminal and the second terminal to realize the sharing of ranging sidelink positioning measurement data and ranging sidelink positioning results.
  • the first terminal further includes:
  • the result response module is used to respond to the ranging side link positioning results
  • the ranging sidelink positioning result is determined by the first terminal, the second terminal and/or the at least one auxiliary terminal according to the shared ranging sidelink positioning measurement data.
  • the first indication information is also used to instruct the second terminal to return second response information to the first terminal according to receiving the first ranging sidelink positioning request.
  • the first terminal further includes:
  • An auxiliary terminal determination module configured to determine at least one candidate auxiliary terminal from the at least one candidate auxiliary terminal according to receiving the first response information sent by the at least one candidate auxiliary terminal within a preset time period and not receiving the second response information.
  • Auxiliary terminal configured to determine at least one candidate auxiliary terminal from the at least one candidate auxiliary terminal according to receiving the first response information sent by the at least one candidate auxiliary terminal within a preset time period and not receiving the second response information.
  • the auxiliary terminal determination module is configured to use the candidate auxiliary terminal corresponding to the first received first response information as the auxiliary terminal.
  • the first terminal further includes:
  • a direct connection positioning module configured to initiate ranging side link positioning to the second terminal if the second response information is received within a preset time period.
  • the starting time of the preset duration is the time when the first ranging sidelink positioning request is broadcast or the time when the first response information sent by the first candidate auxiliary terminal is received.
  • the terminal includes a first request receiving module 201 and a candidate participation module 202, where,
  • the first request receiving module 201 is used to receive the first ranging sidelink positioning request broadcast by the first terminal;
  • the candidate participation module 202 is configured to determine the candidate participation in the first ranging sidelink positioning request based on predetermined authorization information indicating that the third terminal serves as a candidate auxiliary terminal and the first indication information in the first ranging sidelink positioning request. Ranging sidelink positioning between the first terminal and the second terminal.
  • the device in the embodiment of the present disclosure can execute the ranging side link positioning method on the third device side provided by the embodiment of the present disclosure.
  • the implementation principle is similar.
  • Each module in the third terminal in each embodiment of the present disclosure executes The actions correspond to the steps in the ranging sidelink positioning method on the third device side in each embodiment of the present disclosure.
  • For detailed functional descriptions of each module of the device please refer to the corresponding method shown above. The description will not be repeated here.
  • the third terminal further includes:
  • a first response module configured to return first response information to the first terminal according to the discovery of the second terminal.
  • the third terminal further includes:
  • the second response module is configured to determine itself as the second terminal and return second response information to the first terminal.
  • the third terminal further includes:
  • the second request receiving module is configured to receive the second ranging sidelink positioning request sent by the first terminal, and determine the participating parties according to the second indication information in the second ranging sidelink positioning request.
  • the ranging side link positioning between the first terminal and the second terminal is described.
  • the third terminal further includes:
  • a positioning sharing module configured to perform ranging side link positioning with the first terminal according to the second instruction information, initiate ranging side link positioning to the second terminal, and perform ranging side link positioning with the second terminal.
  • Line link positioning and serves as a relay for communication between the first terminal and the second terminal to realize the sharing of ranging side link positioning measurement data and ranging side link positioning results.
  • the positioning sharing module is specifically configured to: send a third ranging sidelink positioning request to the second terminal, where the third ranging sidelink positioning request includes the third ranging sidelink positioning request. 2. Instruction information.
  • the third terminal further includes:
  • a local list search module configured to determine that the second terminal has been discovered based on finding the second terminal in the maintained terminal list.
  • the third terminal further includes:
  • a network discovery module configured to trigger the process of discovering the second terminal based on the fact that the second terminal is not found in the terminal list
  • a recording module configured to record the unique identifier of the second terminal in the terminal list when the second terminal is discovered.
  • the third terminal further includes:
  • the third indication discovery module is configured to send third indication information to the policy control function entity.
  • the third indication information is used to indicate that the third terminal serves as an auxiliary terminal and participates in the ranging sidelink between the two terminals. positioning ability;
  • An authorization receiving module configured to receive authorization information returned by the policy control function entity, where the authorization information is used to indicate that the third terminal is allowed to participate in ranging sidelink positioning as a candidate auxiliary terminal.
  • An embodiment of the present disclosure provides an electronic device, including a memory, a processor, and a computer program stored in the memory.
  • the processor executes the above computer program to implement the steps of the ranging sidelink positioning method, which is consistent with related technologies. It can be realized by broadcasting a first ranging sidelink positioning request, the first ranging sidelink positioning request includes first indication information, and the first indication information is used to indicate that the auxiliary terminal is allowed to participate in the first terminal and The ranging sidelink positioning between the second terminals avoids the problem of being unable to perform distance sidelink positioning when the two terminals cannot be directly connected.
  • the ranging sidelink positioning can be performed through lightweight signaling.
  • an electronic device is provided, as shown in Figure 6.
  • the electronic device 4000 shown in Figure 6 includes: a processor 4001 and a memory 4003. Among them, the processor 4001 and the memory 4003 are connected, such as through a bus 4002.
  • the electronic device 4000 may also include a transceiver 4004, which may be used for data interaction between the electronic device and other electronic devices, such as data transmission and/or data reception. It should be noted that in practical applications, the number of transceivers 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of the present disclosure.
  • the processor 4001 can be a CPU (Central Processing Unit, central processing unit), a general-purpose processor, a DSP (Digital Signal Processor, a data signal processor), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), or an FPGA (Field Programmable Gate Array). , field programmable gate array) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various illustrative logical blocks, modules and circuits described in connection with this disclosure.
  • the processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.
  • Bus 4002 may include a path that carries information between the above-mentioned components.
  • the bus 4002 can be a PCI (Peripheral Component Interconnect, Peripheral Component Interconnect Standard) bus or an EISA (Extended Industry Standard Architecture) bus, etc.
  • the bus 4002 can be divided into an address bus, a data bus, a control bus, etc. For ease of presentation, only one thick line is used in Figure 6, but it does not mean that there is only one bus or one type of bus.
  • the memory 4003 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, RAM (Random Access Memory) or other types that can store information and instructions.
  • Dynamic storage devices can also be EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compression Optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media, other magnetic storage devices, or any other media that can be used to carry or store computer programs and can be read by a computer, without limitation here .
  • the memory 4003 is used to store computer programs for executing embodiments of the present disclosure, and is controlled by the processor 4001 for execution.
  • the processor 4001 is used to execute the computer program stored in the memory 4003 to implement the steps shown in the foregoing method embodiments.
  • Embodiments of the present disclosure provide a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the steps and corresponding contents of the foregoing method embodiments can be implemented.
  • An embodiment of the present disclosure also provides a computer program product, including a computer program.
  • a computer program product including a computer program.
  • the steps and corresponding contents of the foregoing method embodiments can be implemented.
  • each operation step is indicated by arrows in the flowchart of the embodiment of the present disclosure
  • the order of implementation of these steps is not limited to the order indicated by the arrows.
  • the implementation steps in each flowchart may be executed in other orders according to requirements.
  • some or all of the steps in each flowchart are based on actual implementation scenarios and may include multiple sub-steps or multiple stages. Some or all of these sub-steps or stages may be executed at the same time, and each of these sub-steps or stages may also be executed at different times. In scenarios with different execution times, the execution order of these sub-steps or stages can be flexibly configured according to needs, and the embodiments of the present disclosure are not limited to this.

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Abstract

本公开实施例提供了一种测距侧行链路定位方法、终端、电子设备及计算机可读存储介质，涉及通信领域。该方法包括：广播第一测距侧行链路定位请求，第一测距侧行链路定位请求中包括第一指示信息；其中，第一指示信息用于指示允许辅助终端参与第一终端和第二终端间的测距侧行链路定位。本公开实施例通过广播第一测距侧行链路定位请求，第一距侧行链路定位请求中包括第一指示信息，第一指示信息用于指示允许辅助终端参与第一终端和第二终端间的测距侧行链路定位，避免了两个终端在不能直接连接时无法进行距侧行链路定位的问题，可通过轻量级信令进行测距侧行链路定位。

Description

测距侧行链路定位方法、终端、电子设备及存储介质 技术领域
本公开涉及通信技术领域，具体而言，本公开涉及一种测距侧行链路定位方法、终端、电子设备及存储介质。
背景技术
测距是指通过PC5接口确定两个或多个用户设备(User Equipment，UE)之间的距离和/或一个UE(即目标UE)与另一个UE(即参考UE)之间的方向和/或相对定位；侧行链路定位是指使用PC5接口对UE进行定位。
基于测距的业务和侧行链路定位包括距离测量和/或方向测量，UE被允许在业务中请求距离测量和/或方向测量。
现有技术仅支持参考UE和目标UE之间的直接测距/侧行链路定位。
发明内容
本公开实施例提供了一种测距侧行链路定位的方法、装置、电子设备及计算机可读存储介质，可以解决现有技术的上述问题。所述技术方案如下：
根据本公开实施例的一个方面，提供了一种测距侧行链路定位的方法，该方法包括：
广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
根据本公开实施例的另一个方面，提供了一种测距侧行链路定位的方法，该方法包括：
接收第一终端发送的第一测距侧行链路定位请求；
根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
根据本公开实施例的另一个方面，提供了一种第一终端，包括：
第一请求发送模块，用于广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
根据本公开实施例的另一个方面，提供了一种第三终端，包括：
第一请求接收模块，用于接收第一终端广播的第一测距侧行链路定位请求；
候选参与模块，用于根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
根据本公开实施例的另一个方面，提供了一种电子设备，该电子设备包括存储器、处理器及存储在存储器上的计算机程序，处理器执行所述计算机程序以实现上述方法的步骤。
根据本公开实施例的再一个方面，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现上述方法的步骤。
本公开实施例提供的技术方案带来的有益效果是：
通过广播第一测距侧行链路定位请求，第一距侧行链路定位请求中包括第一指示信息，第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位，避免了两个终端在不能直接连接时无法进行距侧行链路定位的问题，可通过轻量级信令进行测距侧行链路定位。
本公开实施例附加的方面和优点将在下面的描述中部分给出，这些将 从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍。
图1为本公开实施例提供的一种第一终端侧的测距侧行链路定位方法的流程示意图；
图2为本公开实施例提供的一种第三终端侧的测距侧行链路定位方法的流程示意图；
图3为本公开实施例提供的一种测距侧行链路定位的交互示意图；
图4为本公开实施例提供的一种第一终端的结构示意图；
图5为本公开实施例提供的一种第二终端的结构示意图；
图6为本公开实施例提供的一种电子设备的结构示意图。
具体实施方式
下面结合本公开中的附图描述本公开的实施例。应理解，下面结合附图所阐述的实施方式，是用于解释本公开实施例的技术方案的示例性描述，对本公开实施例的技术方案不构成限制。
本技术领域技术人员可以理解，除非特意声明，这里使用的单数形式“一”、“一个”和“该”也可包括复数形式。应该进一步理解的是，本公开实施例所使用的术语“包括”以及“包含”是指相应特征可以实现为所呈现的特征、信息、数据、步骤、操作、元件和/或组件，但不排除实现为本技术领域所支持其他特征、信息、数据、步骤、操作、元件、组件和/或它们的组合等。应该理解，当我们称一个元件被“连接”或“耦接”到另一元件时，该一个元件可以直接连接或耦接到另一元件，也可以指该一个元件和另一元件通过中间元件建立连接关系。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的术语“和 /或”指示该术语所限定的项目中的至少一个，例如“A和/或B”可以实现为“A”，或者实现为“B”，或者实现为“A和B”。
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
本公开提供的测距侧行链路定位方法、装置、电子设备、计算机可读存储介质以及计算机程序产品，旨在解决现有技术的如上技术问题。
其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
此外，本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(Global System Of Mobile Communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(General Packet Radio Service，GPRS)系统、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、高级长期演进(Long Term Evolution Advanced，LTE-A)系统、通用移动系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability For Microwave Access，WiMAX)系统、5G新空口(New Radio，NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evolved Packet System，EPS)、5G系统(5GS)等。
本公开实施例涉及的终端(设备)，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network，CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设 备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端设备(Remote Terminal)、接入终端设备(Access Terminal)、用户终端设备(User Terminal)、用户代理(User Agent)、用户装置(User Device)，本公开实施例中并不限定。
下面通过对几个示例性实施方式的描述，对本公开实施例的技术方案以及本公开的技术方案产生的技术效果进行说明。需要指出的是，下述实施方式之间可以相互参考、借鉴或结合，对于不同实施方式中相同的术语、相似的特征以及相似的实施步骤等，不再重复描述。
本公开实施例中提供了一种第一终端侧的测距侧行链路定位方法，如图1所示，该方法包括：
步骤101、广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
在一个实施例中，本公开的第一测距侧行链路定位请求中可以包括第一终端的唯一标识、第二终端的唯一标识、具体的业务内容以及第一指示信息。
在另一个实施例中，第一终端的唯一标识、第二终端的唯一标识、具体的业务内容中的至少一种也可以记录在第一指示信息中。
本公开实施例的第一终端可以为参考UE(Target UE)。第二终端可以为目标UE(Reference UE)。第一终端可以在当前公共陆地移动网(Public  Land Mobile Network，PLMN)中广播第一测距侧行链路定位请求，从而当前PLMN中的其他终端均可能接收到第一测距侧行链路定位请求。
具体的业务内容可以是测距业务，例如请求确定第一终端和第二终端之间的距离的业务；也可以是请求侧行链路定位业务，例如请求第一终端与第二终端之间的定位(例如确定方向和/或相对定位)业务；还可以同时请求测距业务与侧行链路定位业务，本公开不作具体的限定。
在一些实施例中，第一测距侧行链路定位请求中可以包括业务质量(Quality of Service，QoS)要求，指测距侧行链路定位的准确度、时延等性能指标。
本公开的辅助终端(Assistant UE)具有作为辅助终端，参与所述两个终端间的测距侧行链路定位的能力。
在一个实施例中，辅助终端可以分别与两个终端通信连接，并分别发起与第一终端和第二终端间的测距侧行链路定位，使得第一终端可以响应第一终端和第二终端间的测距侧行链路定位结果，应当理解的是，该第一终端和第二终端间的测距侧行链路定位是基于辅助终端分别与第一终端和第二终端间的测距侧行链路定位获得的。
本公开实施例通过在第一测距侧行链路定位请求中设置第一指示信息，以通知当前PLMN中的其他终端，在另一个终端(例如辅助终端)的参与下进行测距侧行链路定位是可接受的，在第一终端和第二终端在无法直接连接时，利用辅助终端参与进行第一终端和第二终端间的测距侧行链路定位。
本公开提供的测距侧行链路定位方法，通过广播第一测距侧行链路定位请求，第一距侧行链路定位请求中包括第一指示信息，第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位，避免了两个终端在不能直接连接时无法进行距侧行链路定位的问题，可通过轻量级信令进行测距侧行链路定位。
在一个可选实施例中，第一终端广播第一测距侧行链路定位请求，该第一测距侧行链路定位请求包括第一指示信息，第一指示信息用于允许辅 助终端参与第一终端和第二终端间的测距侧行链路定位，如果当前PLMN中的辅助终端接收到第一测距侧行链路定位请求，可以向第一终端发送响应信息，以表示自身具有作为辅助终端，参与第一终端和第二终端间的测距侧行链路定位的能力，由第一终端利用辅助终端完成第一终端和第二终端间的测距侧行链路定位。
在一个可选实施例中，第一指示信息用于指示候选辅助终端根据已发现所述第二终端，向所述第一终端返回第一响应信息。
候选辅助终端是具有作为辅助终端参与两个终端间的测距侧行链路定位能力、但并未确定参与第一终端和第二终端间的测距侧行链路定位的终端。
候选辅助终端根据接收到第一指示信息，发现第二终端，并在发现第二终端时向第一终端返回第一响应信息，第一响应信息可以用于指示候选辅助终端自身已发现第二终端。
在一个可选实施例中，候选辅助终端可以直接发现(Direct Discovery)第二终端。
在一个可选实施例中，候选辅助终端可以在发现第二终端时与第二终端通过PC5接口连接。
在一个可选实施例中，测距侧行链路定位方法包括：
步骤201、向至少一个辅助终端发送第二测距侧行链路定位请求；
本公开实施例根据接收到至少一个候选辅助终端的第一响应信息，从至少一个候选辅助终端中确定至少一个辅助终端。
确定的辅助终端将参与所述第一终端和第二终端间的测距侧行链路定位。本公开实施例对确定的辅助终端的个数不作具体限制，例如可以为1个，也可以为多个。
从候选辅助终端中确定辅助终端的方法本公开实施例不作具体的限定。在一个实施例中，可以根据各个候选辅助终端发送第一响应信息的时 间先后顺序确定，候选辅助终端响应的速度越快，往往说明与第一终端和/或第二终端距离越近或者通信质量越高，因此按照时间先后顺序确定的辅助终端参与应测距侧行链路定位也更加准确。
在一个可选的实施例中，本公开实施例将接收到的首个第一响应信息对应的候选辅助终端作为所述辅助终端。
在一个可选实施例中，当辅助终端的个数为多个时，第一终端可以利用每一个辅助终端与第二终端进行测距侧行链路定位。以辅助终端包括辅助终端1和辅助终端2为例，第一终端与第二终端分别与辅助终端1进行测距侧行链路定位获得测量信息；第一终端与第二终端分别与辅助终端2进行测距侧行链路定位获得测量信息。测量信息通过辅助终端1和辅助终端2在第一终端、第二终端、辅助终端1和辅助终端2之间进行分享，第一终端、第二终端、辅助终端1和辅助终端2中的某一个终端获得所有测量信息后进行结果计算，并将结果发送到第一终端。
本公开实施例的第二测距侧行链路定位请求中包括第二指示信息，所述第二指示信息用于授权所述候选辅助终端作为辅助终端参与所述第一终端和第二终端间的定位。通过向辅助终端发送第二测距侧行链路定位请求，使得只有经过第一终端筛选的辅助终端能够参与测距侧行链路定位，提高了第一终端的自主性。
在上述各实施例的基础上，作为一种可选实施例，第二指示信息还用于指示所述辅助终端与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
在一个实施例中，第二指示信息可以包括第一终端、第二终端和辅助终端的标识，以指示三种终端在测距侧行链路定位流程中的角色。
在另一个实施例中，第二指示信息可以包括第二终端的唯一标识，以说明测距侧行链路定位是针对第一终端和第二终端的，以使辅助终端明确 自身的职责：分别与第一终端和第二终端进行测距侧行链路定位，并作为第一终端和第二终端之间通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
本公开实施例能够在辅助UE的帮助下，通过轻量级信令进行测距侧行链路定位。
在上述各实施例的基础上，本公开实施例的辅助终端根据接收到第二指示信息，辅助终端分别与第一终端和第二终端进行测距或侧行链路定位，测距侧行链路定位测量数据将在第一终端、第二终端以及辅助终端之间共享，以导出测距侧行链路定位结果。
本公开实施例还包括：
响应测距侧行链路定位结果；
其中，所述测距侧行链路定位结果是由所述第一终端、所述第二终端和/或所述至少一个辅助终端根据共享的测距侧行链路定位测量数据确定的。
由于本公开的测距侧行链路定位测量数据是共享的，在实际应用中可以由第一终端、第二终端以及辅助终端的任意一个终端或多个终端根据共享的测距侧行链路定位测量数据生成测距侧行链路定位结果，最终的测距侧行链路定位结果将由第一终端进行响应。
第一终端与第二终端分别与辅助终端测距侧行链路定位获得测量信息。测量信息通过辅助终端在第一终端、第二终端和辅助终端之间进行分享，第一终端、第二终端、辅助终端中的某一个终端，例如辅助终端，获得所有测量信息后进行结果计算，并将结果发送到第一终端。
在上述各实施例的基础上，作为一种可选实施例，第一指示信息还用于指示所述第二终端根据接收到所述第一测距侧行链路定位请求，向所述第一终端返回第二响应信息。
需要说明的是，在一些情况下，第二终端也可以是候选辅助终端，也即具有作为辅助终端参与两个终端间的测距侧行链路定位的能力的终端， 这种情况下，候选辅助终端会向第一终端返回第二响应信息，以使得第一终端可以与第二终端建立直连链路，从而直接与第二终端进行测距侧行链路定位。
在一些实施例中，当第一终端接收到第二终端返回的第二响应信息后，可以与第二终端进行测距侧行链路定位，还可以同时基于辅助终端，参与第一终端与第二终端的测距侧行链路定位。
在上述各实施例的基础上，作为一种可选实施例，第一终端向至少一个辅助终端发送第二测距侧行链路定位请求，之前还包括：
根据在预设时长内收到至少一个候选辅助终端发送的第一响应信息，且未收到所述第二响应信息，从所述至少一个候选辅助终端中确定至少一个辅助终端。
本公开实施例具体可以设置预设时长的定时器，在定时器超时时，如果仅收到候选辅助终端发送的第一响应信息，而没有收到第二终端发送的第二响应信息，则不再接收第一响应信息和第二响应信息，并从至少一个候选辅助终端中确定至少一个辅助终端。
对于开启定时器的时机本公开不作具体的限定，例如，对于可以在广播第一测距侧行链路定位请求时开启，也可以在第一终端接收到首个候选辅助终端发送的第一响应信息时开启。
在上述各实施例的基础上，作为一种可选实施例，若在预设时长内收到所述第二响应信息，则向所述第二终端发起测距侧行链路定位。
在定时器到时前，当第一终端接收到第二响应信息，与第二终端建立直连链路，向所述第二终端发起测距侧行链路定位。
在一些实施例中，当第一终端接收到第二响应信息，第一终端停止接收候选辅助终端发送的第一响应信息。
请参见图2，其示例性地示出了本公开实施例的第三终端侧的测距侧行链路定位方法的流程示意图，如图所示，该方法包括：
S301、接收第一终端发送的第一测距侧行链路定位请求；
S302、根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
在一个实施例中，本公开的第一测距侧行链路定位请求中可以包括第一终端的唯一标识、第二终端的唯一标识、具体的业务内容以及第一指示信息。
在另一个实施例中，第一终端的唯一标识、第二终端的唯一标识、具体的业务内容中的至少一种也可以记录在第一指示信息中。
本公开实施例的第一终端可以为参考UE(Target UE)。第二终端可以为目标UE(Reference UE)。第一终端可以在当前公共陆地移动网(Public Land Mobile Network，PLMN)中广播第一测距侧行链路定位请求，从而当前PLMN中的其他终端均可能接收到第一测距侧行链路定位请求。
具体的业务内容可以是测距业务，例如请求确定第一终端和第二终端之间的距离的业务；也可以是请求侧行链路定位业务，例如请求第一终端与第二终端之间的定位(例如确定方向和/或相对定位)业务；还可以同时请求测距业务与侧行链路定位业务，本公开不作具体的限定。
本公开实施例通过在第一测距侧行链路定位请求中设置第一指示信息，以通知当前PLMN中的其他终端，在另一个终端(辅助终端)的参与下进行测距侧行链路定位是可接受的，在第一终端和第二终端在无法直接连接时，利用辅助终端参与进行第一终端和第二终端间的测距侧行链路定位。
本公开实施例适用于预先获得作为候选辅助终端的授权的终端，也即第三终端在接收到第一终端发送的第一测距侧行链路定位请求，如果预先 确定被授权为候选辅助终端，则根据第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
候选参与所述第一终端和第二终端间的测距侧行链路定位，即具备作为辅助终端参与两个终端间的测距侧行链路定位的能力，且有机会参与第一终端和第二终端间的测距侧行链路定位。
本公开的第三终端侧的测距侧行链路定位方法，通过接收第一终端广播的第一测距侧行链路定位请求，根据该请求中的第一指示信息以及预先确定的指示所述第三终端作为候选辅助终端的授权信息，利用轻量级信令即可确定候选参与所述第一终端和第二终端间的测距侧行链路定位，避免了两个终端在不能直接连接时无法进行距侧行链路定位的问题。
在上述各实施例的基础上，作为一种可选实施例，第三终端侧的测距侧行链路定位方法，在确定候选参与所述第一终端和第二终端间的测距侧行链路定位，还包括：
根据已发现所述第二终端，向所述第一终端返回第一响应信息。
本公开实施例的第三终端在确定候选参与第一终端和第二终端间的测距侧行链路定位后，可以启动发现第二终端的流程，从而在发现第二终端时，向第一终端返回第一响应信息。
在一些实施例中，第一响应信息用于表示第三终端已发现第二终端。
本公开实施例通过向第一终端返回第一响应信息，使得第一终端确定可通过其他终端作为辅助终端，进行与第二终端之间的测距侧行链路定位。
在一些实施例中，第三终端可以在发现第二终端时与第二终端建立PC5连接。
在上述各实施例的基础上，作为一种可选实施例，本公开实施例的第二终端根据第一测距侧行链路定位请求，如果确定第一终端寻找的第二终端就是自身时，则向第一终端返回第二响应信息，第二响应信息用于表示自身为第二终端，通过返回第二响应信息，使得第一终端确定已发现第二 终端，从而可与第二终端建立直连链路，第一终端在于第二终端建立直连链路后可直接向第二终端发起测距侧行链路定位。
在上述各实施例的基础上，作为一种可选实施例，第三终端侧的测距侧行链路定位方法还包括：
S401、接收所述第一终端发送的第二测距侧行链路定位请求，根据所述第二测距侧行链路定位请求中的第二指示信息，确定参与所述第一终端和第二终端间的测距侧行链路定位。
当第一终端向第三终端发送第二测距侧行链路定位请求时，说明第一终端确定以该第三终端作为网络的中继，参与第一终端和第二终端间的测距侧行链路定位(具体用于测距侧行链路定位测量数据的共享)。
第二测距侧行链路定位请求中包括第二指示信息，第二指示信息用于授权所述第三终端作为辅助终端参与所述第一终端和第二终端间的定位。通过向辅助终端发送第二测距侧行链路定位请求，使得只有经过第一终端筛选的辅助终端能够参与测距侧行链路定位，提高了第一终端的自主性。
在一些实施例中，第三终端可以在确定参与定位，也即接收到第二测距侧行链路定位请求时，与第二终端建立PC5连接。
在上述各实施例的基础上，作为一种可选实施例，第二指示信息还用于指示所述辅助终端向所述第二终端发起测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据的共享；
第三终端侧的测距侧行链路定位方法还包括：根据所述第二指示信息，与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
在一个实施例中，第二指示信息可以包括第一终端、第二终端和辅助终端的标识，以指示三种终端在测距侧行链路定位流程中的角色。
在另一个实施例中，第二指示信息可以包括第二终端的唯一标识，以说明测距侧行链路定位是针对第一终端和第二终端的，以使辅助终端明确自身的职责：分别与第一终端和第二终端进行测距或侧行链路定位，并作为第一终端和第二终端之间通信的中继。
在上述各实施例的基础上，第三终端向第二终端发起测距侧行链路定位，包括：
向所述第二终端发送第三测距侧行链路定位请求，所述第三测距侧行链路定位请求中包括所述第二指示信息。
由于第二指示信息用于指示运行辅助终端参与第一终端和第二终端间的测距侧行链路定位，因此第二终端接收到第三测距侧行链路定位请求，可获知第三终端是作为第一终端和第二终端的辅助终端，参与第一终端和第二终端间的测距侧行链路定位的，因此第二终端可以与第三终端进行测距侧行链路定位，接收第三终端的测距侧行链路定位测量数据，或者通过第三终端接收来自第一终端的测距侧行链路定位测量数据和/或测距侧行链路定位结果，也可以将自身生成的测距侧行链路定位测量数据和测距侧行链路定位结果(如果该结果是由第二终端确定)共享给第三终端，或者通过第三终端共享给第一终端。
在上述各实施例的基础上，作为一种可选实施例，本公开实施例还包括：
根据在维护的终端列表中查找到所述第二终端，确定已发现所述第二终端。
本公开通过在本地维护的终端列表中查找第二终端的方式发现第二终端，若终端列表中存在第二终端的唯一标识，则确定已发现第二终端，反之，若在终端列表中未发现第二终端的唯一标识，则确定发现第二终端失败。
在上述各实施例的基础上，作为一种可选实施例，本公开实施例还包括：
若在终端列表中未查找到第二终端，则触发发现第二终端的过程；
当发现所述第二终端时，将所述第二终端的唯一标识记录在所述终端列表中。
本公开实施例先采用在本地终端列表中查找第二终端的方式，若没本地未查找到第二终端，再触发发现第二终端的过程，提高了发现第二终端的效率和成功率，并且在发现第二终端后，进一步将第二终端的唯一标识记录在终端列表中，为后续快速发现第二终端奠定了基础。可以理解的是，当第三终端发现第二终端后，向第一终端发送第一响应信息。
在上述各实施例的基础上，作为一种可选实施例，第三终端接收第一终端发送的第一定位请求，之前还包括：
S501、向策略控制功能实体发送第三指示信息，所述第三指示信息用于指示所述第三终端具有作为辅助终端，参与两个终端间的测距侧行链路定位的能力；
S502、接收所述策略控制功能实体返回的授权信息，所述授权信息用于指示所述第三终端被允许作为候选辅助终端执行测距侧行链路定位业务。
本公开实施例的第三终端若确定自身具有作为辅助终端，参与两个终端间的测距侧行链路定位的能力，则向策略控制功能实体发送第三指示信息，若策略控制实体确定第三终端在当前PLMN、时间和位置上可以作为候选辅助终端，则向第三终端返回授权信息，该授权信息用于指示所述第三终端被允许作为候选辅助终端执行测距侧行链路定位业务。
请参见图3，其示例性地示出了本公开一个实施例的测距侧行链路定位的交互示意图，如图所示，
1、UE1和UE2分别被授权为当前PLMN、时间和位置上的测距侧行链路定位的参考UE和目标UE，UE A、UE B和UE C在当前PLMN、时间和位置被授权为测距/侧行链路定位的候选辅助UE。
2、UE1从is应用层、第三方UE或5G核心网(5G Core)中的网络功能实体(network function，NF)接收测距/侧行链路定位请求，用于UE1和UE2之间的测距侧行链路定位。
3、UE1向UE A、UE B和UE C广播第一测距侧行链路定位请求，第一测距侧行链路定位请求还第一指示信息，第一指示信息中可以包括UE1和UE2的唯一标识(identifier，ID)，测距侧行链路定位内容和QoS要求等等。
4、当UE A、UE B和UE C接收到第一测距侧行链路定位请求时，根据UE2的唯一标识，在本地的终端列表中检查是否已发现UE2；
5、UE A成功发现UE2，并向UE1发送第一响应信息。
6、UE1从UE A接收到第一响应信息后时，启动预先配置的定时器，当定时器超时时仍然没有接收到UE2发送的第二响应信息，则觉得使用UE A进行测距侧行链路定位。
7、UE1向UE A发送第二测距侧行链路定位请求，第二测距侧行链路定位请求包括第二指示信息，所述第二指示信息用于授权UE A作为辅助终端参与所述UE1和UE2间的测距侧行链路定位；
8、UE A根据接收到第二测距侧行链路定位请求，向UE2发送第三测距侧行链路定位请求，所述第三测距侧行链路定位请求中包括所述第一指示信息；
9、测距侧行链路定位测量数据在UE1、UE2和UE A中共享，以导出测距侧行链路定位结果；
10、UE1响应测距侧行链路定位结果。
本公开实施例提供了一种第一终端，如图4所示，该终端包括第一请求发送模块101，其中，
第一请求发送模块101，用于广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
本公开实施例的装置可执行本公开实施例所提供的第一装置侧的测距侧行链路定位方法，其实现原理相类似，本公开各实施例的第一终端中的各模块所执行的动作是与本公开各实施例的第一装置侧的测距侧行链路定位方法中的步骤相对应的，对于装置的各模块的详细功能描述具体可以参见前文中所示的对应方法中的描述，此处不再赘述。
在一个可选实施例中，第一指示信息还用于指示候选辅助终端根据已发现所述第二终端，向所述第一终端返回第一响应信息。
在一个可选实施例中，第一终端还包括：
第二请求发送模块，用于向至少一个辅助终端发送第二测距侧行链路定位请求；
其中，所述第二测距侧行链路定位请求中包括第二指示信息，所述第二指示信息用于授权所述候选辅助终端作为辅助终端参与所述第一终端和第二终端间的定位；
所述至少一个辅助终端是从返回所述第一响应信息的至少一个候选辅助终端确定的。
在一个可选实施例中，第二指示信息还用于指示所述辅助终端与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
在一个可选实施例中，第一终端还包括：
结果响应模块，用于响应测距侧行链路定位结果；
其中，所述测距侧行链路定位结果是由所述第一终端、所述第二终端和/或所述至少一个辅助终端根据共享的测距侧行链路定位测量数据确定的。
在一个可选实施例中，第一指示信息还用于指示所述第二终端根据接收到所述第一测距侧行链路定位请求，向所述第一终端返回第二响应信息。
在一个可选实施例中，第一终端还包括：
辅助终端确定模块，用于根据在预设时长内收到至少一个候选辅助终端发送的第一响应信息，且未收到所述第二响应信息，从所述至少一个候选辅助终端中确定至少一个辅助终端。
在一个可选实施例中，辅助终端确定模块用于将接收到的首个第一响应信息对应的候选辅助终端作为所述辅助终端。
在一个可选实施例中，第一终端还包括：
直连定位模块，用于若在预设时长内收到所述第二响应信息，则向所述第二终端发起测距侧行链路定位。
在一个可选实施例中，预设时长的开始时刻为广播第一测距侧行链路定位请求的时刻或者接收到首个候选辅助终端发送的第一响应信息的时刻。
本公开实施例提供了一种第三终端，如图5所示，该终端包括第一请求接收模块201和候选参与模块202，其中，
第一请求接收模块201，用于接收第一终端广播的第一测距侧行链路定位请求；
候选参与模块202，用于根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
本公开实施例的装置可执行本公开实施例所提供的第三装置侧的测距侧行链路定位方法，其实现原理相类似，本公开各实施例的第三终端中的各模块所执行的动作是与本公开各实施例的第三装置侧的测距侧行链路定位方法中的步骤相对应的，对于装置的各模块的详细功能描述具体可以参见前文中所示的对应方法中的描述，此处不再赘述。
在一个可选实施例中，第三终端还包括：
第一响应模块，用于根据已发现所述第二终端，向所述第一终端返回第一响应信息。
在一个可选实施例中，第三终端还包括：
第二响应模块，用于确定自身为所述第二终端，向所述第一终端返回第二响应信息。
在一个可选实施例中，第三终端还包括：
第二请求接收模块，用于接收所述第一终端发送的第二测距侧行链路定位请求，根据所述第二测距侧行链路定位请求中的第二指示信息，确定参与所述第一终端和第二终端间的测距侧行链路定位。
在一个可选实施例中，第三终端还包括：
定位共享模块，用于根据所述第二指示信息，与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
在一个可选实施例中，定位共享模块具体用于：向所述第二终端发送第三测距侧行链路定位请求，所述第三测距侧行链路定位请求中包括所述第二指示信息。
在一个可选实施例中，第三终端还包括：
本地列表查找模块，用于根据在维护的终端列表中查找到所述第二终端，确定已发现所述第二终端。
在一个可选实施例中，第三终端还包括：
网络发现模块，用于根据在所述终端列表未查找到所述第二终端，触发发现第二终端的过程；
记录模块，用于当发现所述第二终端时，将所述第二终端的唯一标识记录在所述终端列表中。
在一个可选实施例中，第三终端还包括：
第三指示发现模块，用于向策略控制功能实体发送第三指示信息，所述第三指示信息用于指示所述第三终端具有作为辅助终端，参与两个终端间的测距侧行链路定位的能力；
授权接收模块，用于接收所述策略控制功能实体返回的授权信息，所述授权信息用于指示所述第三终端被允许作为候选辅助终端参与测距侧行链路定位。
本公开实施例中提供了一种电子设备，包括存储器、处理器及存储在存储器上的计算机程序，该处理器执行上述计算机程序以实现测距侧行链路定位方法的步骤，与相关技术相比可实现：通过广播第一测距侧行链路定位请求，第一距侧行链路定位请求中包括第一指示信息，第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位，避免了两个终端在不能直接连接时无法进行距侧行链路定位的问题，可通过轻量级信令进行测距侧行链路定位。
在一个可选实施例中提供了一种电子设备，如图6所示，图6所示的电子设备4000包括：处理器4001和存储器4003。其中，处理器4001和存储器4003相连，如通过总线4002相连。可选地，电子设备4000还可以包括收发器4004，收发器4004可以用于该电子设备与其他电子设备之间的数据交互，如数据的发送和/或数据的接收等。需要说明的是，实际应用中收发器4004不限于一个，该电子设备4000的结构并不构成对本公开实施例的限定。
处理器4001可以是CPU(Central Processing Unit，中央处理器)，通用处理器，DSP(Digital Signal Processor，数据信号处理器)，ASIC(Application Specific Integrated Circuit，专用集成电路)，FPGA(Field Programmable Gate Array，现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本公开公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器4001也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等。
总线4002可包括一通路，在上述组件之间传送信息。总线4002可以是PCI(Peripheral Component Interconnect，外设部件互连标准)总线或EISA(Extended Industry Standard Architecture，扩展工业标准结构)总线等。总线4002可以分为地址总线、数据总线、控制总线等。为便于表示，图6中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
存储器4003可以是ROM(Read Only Memory，只读存储器)或可存储静态信息和指令的其他类型的静态存储设备，RAM(Random Access Memory，随机存取存储器)或者可存储信息和指令的其他类型的动态存储设备，也可以是EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory，只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质、其他磁存储设备、或者能够用于携带或存储计算机程序并能够由计算机读取的任何其他介质，在此不做限定。
存储器4003用于存储执行本公开实施例的计算机程序，并由处理器4001来控制执行。处理器4001用于执行存储器4003中存储的计算机程序，以实现前述方法实施例所示的步骤。
本公开实施例提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时可实现前述方法实施例的步骤及相应内容。
本公开实施例还提供了一种计算机程序产品，包括计算机程序，计算机程序被处理器执行时可实现前述方法实施例的步骤及相应内容。
本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”、“1”、“2”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开的实施例能够以除图示或文字描述以外的顺序实施。
应该理解的是，虽然本公开实施例的流程图中通过箭头指示各个操作步骤，但是这些步骤的实施顺序并不受限于箭头所指示的顺序。除非本文中有明确的说明，否则在本公开实施例的一些实施场景中，各流程图中的实施步骤可以按照需求以其他的顺序执行。此外，各流程图中的部分或全部步骤基于实际的实施场景，可以包括多个子步骤或者多个阶段。这些子步骤或者阶段中的部分或全部可以在同一时刻被执行，这些子步骤或者阶段中的每个子步骤或者阶段也可以分别在不同的时刻被执行。在执行时刻不同的场景下，这些子步骤或者阶段的执行顺序可以根据需求灵活配置，本公开实施例对此不限制。
以上所述仅是本公开部分实施场景的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开的方案技术构思的前提下，采用基于本公开技术思想的其他类似实施手段，同样属于本公开实施例的保护范畴。

Claims (23)

  1. 一种测距侧行链路定位方法，其特征在于，应用于第一终端，所述方法包括：
    广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
    其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息还用于指示候选辅助终端根据已发现所述第二终端，向所述第一终端返回第一响应信息。
  3. 根据权利要求2所述的方法，其特征在于，还包括：
    向至少一个辅助终端发送第二测距侧行链路定位请求；
    其中，所述第二测距侧行链路定位请求中包括第二指示信息，所述第二指示信息用于授权所述候选辅助终端作为辅助终端参与所述第一终端和第二终端间的测距侧行链路定位；
    所述至少一个辅助终端是从返回所述第一响应信息的至少一个候选辅助终端确定的。
  4. 根据权利要求3所述的方法，其特征在于，所述第二指示信息还用于指示所述辅助终端与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
  5. 根据权利要求4所述的方法，其特征在于，还包括：
    响应所述测距侧行链路定位结果；
    其中，所述测距侧行链路定位结果是由所述第一终端、所述第二终端和/或所述至少一个辅助终端根据共享的测距侧行链路定位测量数据确定的。
  6. 根据权利要求3-5任意一项所述的方法，其特征在于，所述第一指示信息还用于指示所述第二终端根据接收到所述第一测距侧行链路定位请求，向所述第一终端返回第二响应信息。
  7. 根据权利要求6所述的方法，其特征在于，所述向至少一个辅助终端发送第二测距侧行链路定位请求，之前还包括：
    根据在预设时长内收到至少一个候选辅助终端发送的第一响应信息，且未收到所述第二响应信息，从所述至少一个候选辅助终端中确定至少一个辅助终端。
  8. 根据权利要求7所述的方法，其特征在于，所述从所述至少一个候选辅助终端中确定至少一个辅助终端，包括：
    将接收到的首个第一响应信息对应的候选辅助终端作为所述辅助终端。
  9. 根据权利要求7所述的方法，其特征在于，还包括：
    若在预设时长内收到所述第二响应信息，则向所述第二终端发起测距侧行链路定位。
  10. 根据权利要求7所述的方法，其特征在于，所述预设时长的开始时刻为广播第一测距侧行链路定位请求的时刻或者接收到首个候选辅助终端发送的第一响应信息的时刻。
  11. 一种测距侧行链路定位方法，其特征在于，应用于第三终端，所述方法包括：
    接收第一终端广播的第一测距侧行链路定位请求；
    根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
  12. 根据权利要求11所述的方法，其特征在于，还包括：
    根据已发现所述第二终端，向所述第一终端返回第一响应信息。
  13. 根据权利要求11所述的方法，其特征在于，还包括：
    确定自身为所述第二终端，向所述第一终端返回第二响应信息。
  14. 根据权利要求12所述的方法，其特征在于，还包括：
    接收所述第一终端发送的第二测距侧行链路定位请求，根据所述第二测距侧行链路定位请求中的第二指示信息，确定参与所述第一终端和第二终端间的测距侧行链路定位。
  15. 根据权利要求14所述的方法，其特征在于，还包括：
    根据所述第二指示信息，与第一终端进行测距侧行链路定位，向所述第二终端发起测距侧行链路定位，与第二终端进行测距侧行链路定位，并作为第一终端和第二终端通信的中继以实现测距侧行链路定位测量数据和测距侧行链路定位结果的共享。
  16. 根据权利要求15所述的方法，其特征在于，所述向所述第二终端发起测距侧行链路定位，包括：
    向所述第二终端发送第三测距侧行链路定位请求，所述第三测距侧行链路定位请求中包括所述第二指示信息。
  17. 根据权利要求12所述的方法，其特征在于，还包括：
    根据在维护的终端列表中查找到所述第二终端，确定已发现所述第二终端。
  18. 根据权利要求17所述的方法，其特征在于，还包括：
    根据在所述终端列表未查找到所述第二终端，触发发现第二终端的过程；
    当发现所述第二终端时，将所述第二终端的唯一标识记录在所述终端列表中。
  19. 根据权利要求11所述的测距侧行链路定位方法，其特征在于，所述接收第一终端发送的第一定位请求，之前还包括：
    向策略控制功能实体发送第三指示信息，所述第三指示信息用于指示所述第三终端具有作为辅助终端参与两个终端间的测距侧行链路定位的能力；
    接收所述策略控制功能实体返回的授权信息，所述授权信息用于指示所述第三终端被允许作为候选辅助终端参与测距侧行链路定位。
  20. 一种第一终端，其特征在于，包括：
    第一请求发送模块，用于广播第一测距侧行链路定位请求，所述第一测距侧行链路定位请求中包括第一指示信息；
    其中，所述第一指示信息用于指示允许辅助终端参与所述第一终端和第二终端间的测距侧行链路定位。
  21. 一种第三终端，其特征在于，包括：
    第一请求接收模块，用于接收第一终端广播的第一测距侧行链路定位请求；
    候选参与模块，用于根据预先确定的指示所述第三终端作为候选辅助终端的授权信息，以及所述第一测距侧行链路定位请求中的第一指示信息，确定候选参与所述第一终端和第二终端间的测距侧行链路定位。
  22. 一种电子设备，包括存储器、处理器及存储在存储器上的计算机程序，其特征在于，所述处理器执行所述计算机程序以实现权利要求1-19任一项所述方法的步骤。
  23. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1-19任一项所述的方法的步骤。
PCT/CN2022/091316 2022-05-06 2022-05-06 测距侧行链路定位方法、终端、电子设备及存储介质 WO2023212958A1 (zh)

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