WO2023155887A1 - 一种定位信息传输方法、装置、存储介质和芯片系统 - Google Patents

一种定位信息传输方法、装置、存储介质和芯片系统 Download PDF

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Publication number
WO2023155887A1
WO2023155887A1 PCT/CN2023/076801 CN2023076801W WO2023155887A1 WO 2023155887 A1 WO2023155887 A1 WO 2023155887A1 CN 2023076801 W CN2023076801 W CN 2023076801W WO 2023155887 A1 WO2023155887 A1 WO 2023155887A1
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WIPO (PCT)
Prior art keywords
terminal device
reference signal
positioning reference
information
message
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PCT/CN2023/076801
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English (en)
French (fr)
Inventor
黄甦
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华为技术有限公司
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Publication of WO2023155887A1 publication Critical patent/WO2023155887A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present application relates to the technical field of wireless communication, and in particular to a positioning information transmission method, device, storage medium and chip system.
  • DL-TDOA downlink-time of arrival
  • DL-AOD downlink-angle of departure
  • UL -TDOA uplink-time of arrival
  • uplink angle of arrival up link-angle of arrival
  • UL-AOA uplink angle of arrival
  • round trip time round trip time
  • RTT round trip time
  • DL-AOD and UL-AOA are angle-based positioning technologies, that is, the receiver measures the angle of arrival of the reference signal sent by the transmitter, and then infers the receiver's position based on the angle information between the receiver and multiple transmitters with known positions.
  • the present application provides a positioning information transmission method, device, storage medium, and chip system, which are used to transmit the measurement results of positioning reference signals corresponding to each terminal device based on the sidelink through broadcast or multicast, so as to solve the problem of sidelink It solves the problem of transmitting positioning information on the road, and can also improve the transmission efficiency of measurement results.
  • a positioning information transmission method may be executed by the first terminal device, or by a module, unit, or chip inside the first terminal device.
  • the first terminal device receives the first sidelink positioning reference signal from the second terminal device, and sends the first message in a broadcast or multicast manner.
  • the first message includes first information, and the first information includes first indication information and second indication information.
  • the second indication information in the first information indicates the measurement result of the sidelink positioning reference signal
  • the first indication information in the first information is used to indicate that the measurement result indicated by the second indication information is the first sidelink positioning
  • the measurement result of the reference signal in this way, the second terminal device can find the measurement report of the first sidelink positioning reference signal in the first message sent by multicast or broadcast.
  • the measurement report of the first sidelink positioning reference signal is used to determine the position of the second terminal device, and the measurement report of the first sidelink positioning reference signal may be referred to as positioning information of the second terminal device.
  • the first terminal device In the sidelink communication, during the sending process of a unicast message, the first terminal device needs to find out the available resources first, and the control information can only be sent once in a time slot, that is, in a time slot only Can be dispatched once The source, and then sends the unicast message to a terminal device through the resource. If the measurement results of multiple sidelink positioning reference signals are sent to multiple terminal devices in unicast form, the first terminal device needs to send control information multiple times in multiple time slots, so as to schedule multiple resources to send the Measurement results of multiple sidelink positioning reference signals. It can be seen that the time delay of this scheme is relatively large.
  • the first terminal device may put the measurement results of multiple sidelink positioning reference signals into one message, and schedule one resource for transmission in one time slot through one control message. That is to say, in this application, the first terminal device can send the measurement results of the multiple sidelink positioning reference signals by scheduling a resource in one time slot, thereby reducing the delay and improving the measurement of the sidelink positioning reference signals The transfer efficiency of the results.
  • the first indication information indicates at least one of the following: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, or, the first side The indication information of the uplink positioning reference signal.
  • the indication information of the first sidelink positioning reference signal includes: time domain resource information of the first sidelink positioning reference signal, and/or, an index value of the first sidelink positioning reference signal.
  • the present application may have various schemes for indicating which terminal device the measurement report of the positioning reference signal should belong to, and thus, the flexibility of the scheme may be improved.
  • the first terminal device before the first terminal device receives the first sidelink positioning reference signal from the second terminal device, the first terminal device receives a third message from the second terminal device, where the third message includes Scheduling information of the first sidelink positioning reference signal; the third message is sent by unicast, multicast or broadcast.
  • the third message includes at least one of the following: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, or, the first sidelink The indication information of the road positioning reference signal.
  • the first terminal device may use the identification information of the second terminal device carried in the third message, the identification information of resources of the first sidelink positioning reference signal, or the first sidelink At least one item of indication information of the positioning reference signal is used as the first indication information, so that the second terminal device can find the measurement result of the first sidelink positioning reference signal from the first message according to the first indication information.
  • the third message is sent by way of multicast broadcast
  • multiple terminal devices may receive the first sidelink positioning reference signal scheduled by the third message from the second terminal device, so that multiple terminal devices may receive The measurement results of the plurality of first sidelink positioning reference signals are fed back to the second terminal device, so that the positioning accuracy of the second terminal device can be improved.
  • the first terminal device before the first terminal device receives the first sidelink positioning reference signal from the second terminal device, the first terminal device receives the first measurement request message from the second terminal device, and the first The measurement request message requests measurement of the first sidelink positioning reference signal.
  • the first measurement request message includes at least one of the following: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, or, the first sidelink The indication information of the road positioning reference signal.
  • the identification information of the second terminal device may include the identification of the second terminal device, the index value of the identification of the second terminal device, the hash value of the identification of the second terminal device, or the first random number corresponding to the second terminal device at least one of the .
  • the first terminal device may use the identification information of the second terminal device carried in the first measurement request message as the first indication information, so that the second terminal device can find the first sidelink from the first message according to the first indication information The measurement result of the positioning reference signal.
  • the first measurement request message includes first positioning measurement type information
  • the first positioning measurement type information indicates a type of a measurement result of the first sidelink positioning reference signal.
  • the second terminal device can flexibly instruct the first terminal device to measure the first sidelink positioning reference signal, thereby improving the flexibility of the solution.
  • the first terminal device further receives the second sidelink positioning reference signal from the third terminal device.
  • the first message further includes second information, and the second information includes third indication information and fourth indication information.
  • the third indication information indicates at least one of the following: identification information of the third terminal device, identification information of resources of the second sidelink positioning reference signal, or indication information of the second sidelink positioning reference signal .
  • the fourth indication information indicates the measurement result of the second sidelink positioning reference signal, and the measurement result of the second sidelink positioning reference signal is used to determine the position of the third terminal device.
  • the first message may at least include a plurality of information such as the first information and the second information, so that the transmission efficiency of the sidelink positioning reference signal may be improved.
  • the first terminal device before the first terminal device receives the first sidelink positioning reference signal from the second terminal device, the first terminal device sends a second message, where the second message includes time information.
  • the time information indicates: the time when the first terminal device receives the sidelink positioning reference signal, the time when the first sidelink positioning reference signal arrives at the first terminal device may be within the time indicated by the time information.
  • the sending time of the first sidelink positioning reference signal may be within the time indicated by the time information.
  • the first terminal device may send the second message in a broadcast or multicast manner, and then notify one or more other terminal devices within which time period the sidelink positioning reference signal can be sent to the first terminal device . That is to say, the first terminal device may receive sidelink positioning reference signals from other terminal devices within one or more set time periods. In this way, the first terminal device does not have to be in the "receivable sidelink positioning reference signal state" all the time, but can flexibly select one or more time periods to be in the "receivable sidelink positioning reference signal state". If the first terminal device is in the "receivable sidelink positioning reference signal state", the first terminal device needs to continuously monitor sidelink positioning reference signals from other terminal devices.
  • the first terminal device when the first terminal device is not in the "receivable sidelink positioning reference signal state", the first terminal device does not need to monitor sidelink positioning reference signals from other terminal devices, and then can perform other tasks. It can be seen that the first terminal device can make its own working mode more flexible by setting the time when it can receive the sidelink positioning reference signal, and can also provide more time for the first terminal device to perform other tasks.
  • the time information includes at least one of the following: an index value of a time slot, a set of index values of a time slot, an index value of a set of time slots, or time window information. In this way, the flexibility of the scheme can be improved.
  • the set of slot index values includes a plurality of slot index values.
  • the index value of the slot set indicates a slot set including one or more slots.
  • the information of the time window includes: at least one of the length, offset, or period of the time window.
  • the time information also includes a first time reference point.
  • the first time reference point is an index value of a time slot, an index value of a time slot set, or a reference point of a time window.
  • the first time reference point includes a system frame number (system frame number, SFN) #0 or direct frame number (Direct Frame Number, DFN) #0.
  • the first terminal device after the first terminal device sends the second message, the first terminal device sends the third sidelink positioning reference signal.
  • the second terminal device may measure the positioning reference signal of the third sidelink, for example, the The RTT technology locates the second terminal device.
  • the second terminal device can measure the time difference between receiving the third sidelink positioning reference signal and sending the first sidelink positioning reference signal, and the first terminal device The time difference between the sidelink positioning reference signal at the sending point and the reception of the first sidelink positioning reference signal may be measured, and the two time differences may be used to locate the second terminal device based on the RTT technology.
  • the first terminal device may use unicast, multicast or The fifth message is sent in a broadcast manner, where the fifth message includes scheduling information indicating the third sidelink positioning reference signal.
  • the terminal device receiving the fifth message may receive the third sidelink positioning reference signal according to the scheduling information of the third sidelink positioning reference signal.
  • the fifth message is sent by multicast or broadcast
  • multiple terminal devices can receive the third sidelink positioning reference signal scheduled by the fifth message, and then multiple terminal devices can obtain the third sidelink positioning reference signal
  • the measurement result of the positioning reference signal the multiple terminal devices can perform positioning according to the obtained measurement result of the third sidelink positioning reference signal. It can be seen that this solution can reduce the number of sidelink positioning signals sent by the first terminal device. The number of reference signals.
  • the time information further includes time interval indication information.
  • the time interval indication information may indicate the time interval between the time when the first terminal device receives the sidelink positioning reference signal and the second time reference point.
  • the time interval in this application may be a time slot interval or a subframe interval.
  • the time interval indication information may indicate the time interval between the time when the sidelink positioning reference signal is sent to the first terminal device and the second time reference point.
  • the second time reference point includes the time within one sending period of the third sidelink positioning reference signal.
  • the second time reference point includes: the transmission time of the third sidelink positioning reference signal, or when the third sidelink positioning reference signal is received signal time.
  • the first terminal device can carry time information through the second message, and then can indicate the time when other terminal devices (taking the second terminal device as an example) send the sidelink positioning reference signal to the first terminal device, the first terminal device
  • the sending time of the third sidelink positioning reference signal can be set closer to the sending time of the first sidelink positioning reference signal, which can also be understood as: the first terminal device can send the third sidelink positioning reference signal to The sending time of the positioning reference signal is as close as possible to the sending time of the first sidelink positioning reference signal.
  • the sending time of the third sidelink positioning reference signal is as close as possible to the sending time of the first sidelink positioning reference signal to minimize the sidelink
  • the impact of the mobility of the terminal device in the scene can also reduce the complexity of measuring the first sidelink positioning reference signal by the first terminal device.
  • the second message further includes: period information of the third sidelink positioning reference signal.
  • other terminal devices can periodically receive the third sidelink positioning reference signal according to the period information of the third sidelink positioning reference signal, and since the third sidelink positioning reference signal is sent periodically, other end The end device may only receive the period information of the third sidelink positioning reference signal once, and then receive the third sidelink positioning reference signal multiple times according to the period information of the third sidelink positioning reference signal, so that The number of times the first terminal device notifies other terminal devices of the configuration information of the third sidelink positioning reference signal is saved, and resources are saved.
  • the second message further includes first trigger status information, where the first trigger status information is associated with one or more sidelink positioning reference signal resources.
  • the first terminal device may notify other terminal devices of related information such as resources used by other terminal devices recommended by itself for sending sidelink positioning reference signals, Therefore, other terminal devices can use the resources recommended by the first terminal device to send the sidelink positioning reference signal.
  • the second terminal device uses resources recommended by the first terminal device to send the first sidelink positioning reference signal, and the resource of the first sidelink positioning reference signal is the first trigger state information associated with one or more sidelinks. resource in the channel positioning reference signal resource.
  • the first terminal device before the first terminal device receives the first sidelink positioning reference signal from the second terminal device, the first terminal device obtains the second trigger state information; the second trigger state information is associated with one or A plurality of sidelink positioning reference signal resources.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are resources in the one or more sidelink positioning reference signal resources associated with the second trigger state information.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are indicated by the network device or selected by the first terminal device.
  • the first terminal device after the first terminal device sends a configuration message through the network device or obtains the second trigger state information through pre-configuration, it can generate the first trigger state information according to the second trigger state information, and send the second trigger state information to other terminal devices.
  • a trigger status message That is to say, the resources recommended by the first terminal device to other terminal devices to be used by other terminal devices when sending the sidelink positioning reference signal may be the resources associated with the second trigger status information.
  • the present application provides a positioning information transmission method, which can be executed by a second terminal device, or by a module, unit, or chip inside the second terminal device.
  • the second terminal device sends the first sidelink positioning reference signal and receives the first message.
  • the first message is sent by broadcast or multicast, the first message includes first information, and the first information includes first indication information and second indication information.
  • the second indication information in the first information indicates the measurement result of the sidelink positioning reference signal
  • the first indication information in the first information is used to indicate that the measurement result indicated by the second indication information is the first sidelink positioning The measurement result of the reference signal, in this way, the second terminal device can find the measurement report of the first sidelink positioning reference signal in the first message sent by multicast or broadcast.
  • the transmission efficiency of the measurement result of the sidelink positioning reference signal can be improved.
  • relevant content and beneficial effects reference may be made to the relevant description of the first aspect, and details are not repeated here.
  • the first indication information indicates at least one of the following: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, or, the first side The indication information of the uplink positioning reference signal.
  • the second terminal device before the first terminal device receives the first sidelink positioning reference signal from the second terminal device, the second terminal device sends a third message to the first terminal device, where the third message includes the first Scheduling information of an uplink positioning reference signal; the third message is sent by unicast, multicast or broadcast.
  • the third message includes at least one of the following: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, or, the first sidelink The indication information of the road positioning reference signal.
  • the identification information of the second terminal device may include the identification of the second terminal device, the index value of the identification of the second terminal device, the hash value of the identification of the second terminal device, or the second terminal device at least one of the corresponding first random numbers.
  • the second terminal device before the second terminal device sends the first sidelink positioning reference signal, the second terminal device sends a first measurement request message to the first terminal device, and the first measurement request message requests that the first The sidelink positioning reference signal is used for measurements.
  • the first measurement request message includes at least one of the following contents: identification information of the second terminal device, identification information of resources of the first sidelink positioning reference signal, Or, indication information of the first sidelink positioning reference signal.
  • the first measurement request message includes first positioning measurement type information
  • the first positioning measurement type information indicates a type of a measurement result of the first sidelink positioning reference signal.
  • the indication information of the first sidelink positioning reference signal includes: time domain resource information of the first sidelink positioning reference signal, and/or the first sidelink positioning reference signal The index value of the reference signal.
  • the second terminal device before the second terminal device sends the first sidelink positioning reference signal, the second terminal device receives a second message from the first terminal device, where the second message includes time information.
  • the time information indicates: the time when the first terminal device receives the sidelink positioning reference signal, and/or the time when the sidelink positioning reference signal is sent to the first terminal device.
  • the time when the first sidelink positioning reference signal arrives at the first terminal device is within the time indicated by the time information; and/or, the sending time of the first sidelink positioning reference signal is within within the time indicated by the time information.
  • the time information includes at least one of the following contents: an index value of a time slot; a set of index values of a time slot, where the set of index values of a time slot includes a plurality of index values of a time slot; The index value of the set, the index value of the time slot set indicates the time slot set, and the time slot set includes one or more time slots; or, the information of the time window.
  • the time information further includes a first time reference point, where the first time reference point is an index value of a time slot, an index value of a time slot set, or a reference point of a time window.
  • the first time reference point includes at least one of the following: SFN#0; DFN#0.
  • the information about the time window includes: at least one of a length, an offset, or a period of the time window.
  • the second terminal device after receiving the second message from the first terminal device, the second terminal device further includes:
  • the second terminal device receives the third sidelink positioning reference signal from the first terminal device.
  • the method further includes:
  • the second terminal device receives the fifth message, where the fifth message includes scheduling information indicating the third sidelink positioning reference signal.
  • the time information further includes: time interval indication information.
  • the time interval indication information indicates one of the following contents: the time interval between the time when the first terminal device receives the sidelink positioning reference signal and the second time reference point; or, sending the sidelink positioning reference signal to the first terminal device The time interval between the time of the positioning reference signal and the second time reference point.
  • the second time reference point in a case where the third sidelink positioning reference signal is sent periodically, includes time within one sending period of the third sidelink positioning reference signal. In a possible implementation manner, in the case that the third sidelink positioning reference signal is sent aperiodically, the second time reference point includes: the sending time of the third sidelink positioning reference signal, or the receiving time of the third sidelink positioning reference signal Time to third sidelink positioning reference signal.
  • the second message further includes: period information of the third sidelink positioning reference signal.
  • the second message further includes first trigger status information, where the first trigger status information is associated with one or more sidelink positioning reference signal resources.
  • the resources of the first sidelink positioning reference signal are resources in one or more sidelink positioning reference signal resources associated with the first trigger state information.
  • the second terminal device before the second terminal device sends the first sidelink positioning reference signal, the second terminal device acquires second trigger status information; the second trigger status information is associated with one or more sidelink positioning reference signals. Positioning reference signal resources.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are the one or more sidelink positioning reference signal resources associated with the second trigger state information resource.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are indicated by the network device or selected by the first terminal device.
  • the second message is sent by broadcast or multicast.
  • a communication device may be the above-mentioned first terminal device or the second terminal device.
  • the communication device may include a communication unit and a processing unit to perform any one of the above-mentioned first to second aspects. any one of the methods.
  • the communication unit is used to perform functions related to transmission and reception.
  • the communication unit includes a receiving unit and a sending unit.
  • the communication device is a communication chip
  • the processing unit may be one or more processors or processor cores
  • the communication unit may be an input/output circuit or port of the communication chip.
  • the communication unit may be a transmitter and a receiver, or the communication unit may be a transmitter and a receiver.
  • the communication device further includes various modules that can be used to execute any implementation manner of any one of the methods from the first aspect to the second aspect above.
  • a communication device may be the above-mentioned first terminal device or the second terminal device, and the communication device may include a processor and a memory.
  • a transceiver is also included, the memory is used to store computer programs or instructions, the processor is used to call and run the computer programs or instructions from the memory, and when the processor executes the computer programs or instructions in the memory, the The communication device executes any implementation manner in any one of the methods from the first aspect to the second aspect above.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the transceiver may include a transmitter (transmitter) and a receiver (receiver).
  • a communication device may be the above-mentioned first terminal device or the second terminal device, and the communication device may include a processor.
  • the processor is coupled with the memory, and can be used to execute any aspect from the first aspect to the second aspect, and the method in any possible implementation manner from the first aspect to the second aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, or an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system, etc.
  • a processor may also be embodied as processing circuitry or logic circuitry.
  • a system includes the above-mentioned first terminal device and one or more second terminal devices, and may further include one or more third terminal devices.
  • a computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is run, causes the computer to execute any one of the possible implementations in the first aspect above.
  • the method in the manner, or make the computer execute the method in any one of the implementation manners of the first aspect to the second aspect above.
  • a computer-readable storage medium stores a computer program (also referred to as code, or an instruction) which, when run on a computer, causes the computer to execute any one of the above-mentioned first aspects. a method in one possible implementation manner, or cause a computer to execute the method in any one implementation manner of the first aspect to the second aspect above.
  • a chip system may include a processor.
  • the processor is coupled with the memory, and can be used to execute any one of the first aspect to the second aspect, and the method in any possible implementation manner of any one of the first aspect to the second aspect.
  • the chip system further includes a memory. Memory, used to store computer programs (also called code, or instructions).
  • a processor for calling and running a computer program from a memory, so that the device installed with the system-on-a-chip executes any one of the first aspect to the second aspect, and any possible one of the first aspect to the second aspect method in the implementation.
  • a communication device may be the above-mentioned first terminal device or the second terminal device, and the communication device may include: an interface circuit and a processing circuit.
  • Interface circuitry may include input circuitry and output circuitry.
  • the processing circuit is used to receive signals through the input circuit and transmit signals through the output circuit, so that any aspect from the first aspect to the second aspect, and the method in any possible implementation manner from the first aspect to the second aspect are realized.
  • the above-mentioned processing device can be a chip, the input circuit can be an input pin, and the output circuit can be It may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example but not limited to, the receiver, the output signal of the output circuit may be, for example but not limited to, output to the transmitter and transmitted by the transmitter, and the input circuit and the output
  • the circuit may be the same circuit, which is used as an input circuit and an output circuit respectively at different times.
  • the present application does not limit the specific implementation manners of the processor and various circuits.
  • the wireless communication device when the communication device is a wireless communication device, the wireless communication device may be a terminal such as a smart phone, or may be a radio access network device such as a base station.
  • the interface circuit may be a radio frequency processing chip in the wireless communication device, and the processing circuit may be a baseband processing chip in the wireless communication device.
  • the communication device may be a part of a wireless communication device, such as an integrated circuit product such as a system chip or a communication chip.
  • the interface circuit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processing circuitry may be logic circuitry on the chip.
  • FIG. 1 is a schematic diagram of several possible system architectures applicable to embodiments of the present application.
  • FIG. 2 is a schematic diagram of a possible network architecture applicable to an embodiment of the present application
  • Fig. 3 is a possible schematic diagram of a trigger flow of SL channel state information (channel state information, CSI);
  • FIG. 4 is a schematic flowchart of a possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a possible communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another possible communication device provided by the embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another possible communication device provided by an embodiment of the present application.
  • the sidelink positioning reference signal in the embodiment of the present application can be understood as a signal that can be used for positioning and transmitted between terminal devices, or it can also be understood as a sidelink signal used for positioning in the terminal device Signals transmitted between circuits.
  • the embodiment of the present application involves multiple sidelink positioning reference signals, such as the first sidelink positioning reference signal, the second sidelink positioning reference signal, and the third sidelink positioning reference signal.
  • Positioning reference signals wherein “first”, “second” and “third” are only used to distinguish each sidelink positioning reference signal, and have no other limiting meaning.
  • the positioning reference signal in the embodiment of the present application may be a positioning reference signal (positioning reference signal, PRS) for side travel, or a sounding reference signal (sounding reference signal, SRS), or a channel-like Channel state information reference signal (CSI-RS), demodulation reference signal (demodulation reference signal, DMRS), phase tracking reference signal (phase-tracking reference signals, PTRS), side synchronization signal/physical layer side Line broadcast channel block (Sidelink Synchronization signal/physical sidelink broadcast channel block, S-SS/PSBCH block).
  • positioning reference signal positioning reference signal
  • PRS positioning reference signal
  • SRS sounding reference signal
  • CSI-RS channel-like Channel state information reference signal
  • demodulation reference signal demodulation reference signal
  • DMRS demodulation reference signal
  • phase tracking reference signal phase-tracking reference signals
  • PTRS phase-tracking reference signals
  • side synchronization signal/physical layer side Line broadcast channel block Sidelink Synchronization signal/physical sidelink broadcast channel block, S-SS/PSBCH
  • the embodiment of the present application is applicable to various positioning technologies, such as positioning based on angle of departure, angle of arrival, or time of arrival.
  • positioning technologies such as positioning based on angle of departure, angle of arrival, or time of arrival.
  • the angle of departure indicates the departure direction of the electromagnetic wave observed from the device sending the electromagnetic wave when the electromagnetic wave is transmitted between two devices.
  • the angle of departure can be used to position the device.
  • the departure angle can also have different names, for example, the departure angle can also be called the downlink angle of departure (DAOD/DL-AOD).
  • DOD/DL-AOD downlink angle of departure
  • the angle of departure in this example can be called DL-AOD: multiple network devices can send signals that can be used for positioning to the terminal device (for example, the positioning reference signal (positioning reference signal, PRS)), the terminal device measures the received signals for positioning respectively, and obtains the measurement results of multiple signals for positioning, and the measurement results of the signals for positioning
  • a reference signal receiving power reference signal receiving power, RSRP
  • the location management apparatus or the network device may determine multiple departure angles based on multiple RSRPs. The multiple departure angles can be used to determine the location information of the terminal device.
  • the location management device in this embodiment of the present application may be a UE, LMF or LMC.
  • the angle of arrival can indicate the arrival direction of the electromagnetic wave observed from the device receiving the electromagnetic wave when the electromagnetic wave is transmitted between two devices.
  • the angle of arrival can be used to locate the device.
  • the angle of arrival can also have different names, for example, the angle of arrival can also be called the uplink angle of arrival (UAOA/UL-AOA).
  • the angle of arrival in this example can be called UL-AOA: the terminal device sends signals that can be used for positioning to multiple network devices (such as Sounding reference signal (sounding reference signal, SRS)), multiple network devices respectively measure the received signals for positioning, and obtain the measurement results of multiple positioning signals, such as May include AOA and/or RSRP. Further, the location management apparatus may determine the location information of the terminal device based on the measurement results of a plurality of positioning signals.
  • SRS Sounding reference signal
  • the location management apparatus may determine the location information of the terminal device based on the measurement results of a plurality of positioning signals.
  • Time-of-arrival-based positioning techniques may include time difference of arrival (TDOA) and RTT.
  • TDOA time difference of arrival
  • RTT time difference of arrival
  • TDOA is the transit time difference of a signal transmitted between devices. TDOA can be used to locate devices.
  • downlink TDOA downlink time difference of arrival
  • uplink TDOA uplink time difference of arrival
  • DL-TDOA downlink time difference of arrival
  • UL-TDOA uplink time difference of arrival
  • OTDOA observed time difference of arrival
  • UTDOA UTDOA
  • the terminal device sends a signal (such as SRS) that can be used for positioning to the network device, and the network device sends a signal that can be used for positioning to the terminal device.
  • a signal such as SRS
  • PRS the signal used for positioning
  • the terminal device determines the measurement result corresponding to the received signal used for positioning (such as PRS).
  • the measurement results corresponding to the signal used for positioning (such as PRS) determined by the terminal device include, for example: the difference between the signal used for positioning (such as SRS) sent by the terminal device and the signal used for positioning (such as PRS) received A time difference, the time difference may be called UE Rx–Tx time difference.
  • the measurement results corresponding to the positioning signal (such as PRS) determined by the terminal device may also include the RSRP of the received positioning signal (such as PRS), the downlink reference signal time difference (Downlink reference signal time difference, DL RSTD ).
  • the network device also determines the measurement result corresponding to the received signal used for positioning (such as SRS).
  • the measurement results corresponding to the signal used for positioning (such as SRS) determined by the network device include, for example: the difference between the signal used for positioning (such as SRS) received by the network device and the signal used for positioning (such as PRS) sent out The time difference can be called gNB Rx–Tx time difference.
  • the measurement results corresponding to the positioning signal (such as SRS) determined by the network device may also include the RSRP of the received positioning signal (such as SRS), and the uplink relative time of arrival (Uplink relative time of arrival, UL RTOA) .
  • UE Rx–Tx time difference and gNB Rx–Tx time difference can calculate the round trip delay (round trip time, RTT) and/or distance between the terminal device and the network device, and then determine based on the RTT and/or distance The location of the end device.
  • RTT round trip time
  • the solution provided by the embodiment of the present application is based on the transmission of sidelink signals between terminal devices to determine the location of the terminal device.
  • the first terminal device receives the positioning signal (such as SL PRS) sent by the second terminal device, and the first terminal device measures the received signal
  • the measurement of the signal may include the time of arrival of the channel.
  • the measurement result obtained by the first terminal device measuring the signal may include the RSRP of the signal.
  • the second terminal device needs to send the SL PRS to the first terminal device, and the first terminal device also sends the SL PRS to the second terminal device.
  • the first terminal device side and the second terminal device side may respectively calculate the time difference between sending and receiving of two SL PRSs, and then calculate the distance information between the first terminal device side and the second terminal device side based on the two time differences.
  • the triggering state which is associated with the resource of the sidelink positioning reference signal, refers to the field or bit used to trigger the associated sidelink positioning reference signal resource.
  • Positioning measurement reporting type which refers to the type of information obtained depending on the sidelink positioning reference signal measurement, such as receiving-transmitting time difference, receiving-transmitting frequency difference or sidelink TDOA, etc.
  • Sidelink positioning reference signal resources refer to resources used to send sidelink positioning reference signals. It should be understood that in the embodiment of the present application, sending the sidelink positioning reference signal can also be replaced by sending the sidelink positioning reference signal resource, which can be understood as sending the sidelink positioning reference signal on the sidelink positioning reference signal resource. Signal.
  • Unicast It refers to a transmission method in which the destination address is a single target, which belongs to one-to-one communication. For example, the sending end and the receiving end communicate through unicast, and the destination address in the message sent by the sending end is the address of the receiving end.
  • Multicast It can also be called multicast, multicast or multicast, which belongs to one-to-many communication. Multicasting may refer to communications in which information is delivered to a group of devices simultaneously.
  • a sender the sender can also be called a multicast source
  • the destination address in the multicast message sent by the sender can be a multicast address.
  • the multicast address may be an address of a group of devices, and the group of devices may include multiple receivers.
  • Broadcast It can be understood as one-to-all communication, including transmission methods without designated receivers.
  • the embodiment of the present application provides a solution, in which the first terminal device can receive the first sidelink positioning reference signal from the second terminal device, and then the first terminal device can broadcast or multicast to the second terminal device
  • the device sends a measurement result of a first sidelink positioning reference signal.
  • the measurement result can be used to locate the second terminal device. It can be seen that, based on the solution provided by the embodiment of the present application, the sidelink positioning reference signal and the measurement result can be transmitted based on the sidelink, thereby laying a foundation for positioning the second terminal device based on the sidelink.
  • the technical solutions provided in the embodiments of the present application are mainly applicable to wireless communication systems.
  • the wireless communication system may comply with the wireless communication standard of the third generation partnership project (3GPP).
  • 3GPP third generation partnership project
  • the solution provided in the embodiment of the present application can be applied to a fourth generation (4th generation, 4G) communication system, such as a long term evolution (long term evolution, LTE) communication system, and can also be applied to a fifth generation (5th generation, 5G) A communication system, such as a 5G new radio (new radio, NR) communication system, or various communication systems applied in the future, such as a sixth generation (6th generation, 6G) communication system.
  • the technical solutions provided in the embodiments of the present application may also comply with other wireless communication standards, such as the 802 series (such as 802.11, 802.15, or 802.20) wireless communication standards of the Institute of Electrical and Electronics Engineers (IEEE).
  • IEEE Institute of Electrical and Electronics Engineers
  • the method provided in the embodiment of the present application can also be applied to a Bluetooth system, a WiFi system, a LoRa system or a vehicle to everything (V2X) system.
  • the method provided in the embodiment of the present application may also be applied to a satellite communication system, where the satellite communication system may be integrated with the above-mentioned communication system.
  • FIG. 1 exemplarily shows several possible system architectures applicable to the embodiments of the present application.
  • two terminal devices and one network device are taken as an example for illustration, and the communication system may also include other more terminal devices and network devices.
  • FIG. 1 shows the architecture within the coverage of the network equipment.
  • the PC5 connection is established between the terminal equipments, and at the same time, each terminal equipment respectively establishes a connection with the network equipment (such as a base station).
  • each terminal device may be connected to the same base station or may be connected to different base stations, and (a) in FIG. 1 shows that the terminal device is connected to the same base station as an example.
  • a connection may be established between the terminal device and the base station through a Uu interface.
  • the first terminal device, the second terminal device, and the third terminal device mentioned later involved in the solution provided by the embodiment of the present application may be terminal devices within the coverage of the network device shown in (a) in FIG. 1 .
  • FIG. 1 shows the architecture within the coverage of some network devices.
  • PC5 connections are established between terminal devices, while some terminal devices do not establish connections with network devices (such as base stations), and the rest A device (such as a base station) establishes a connection.
  • network devices such as base stations
  • the rest A device such as a base station
  • Part of the first terminal device, the second terminal device, and the third terminal device mentioned later (such as the first terminal device) involved in the solution provided by the embodiment of the present application may be as shown in (b) in Figure 1
  • the other part of the first terminal device, the second terminal device and the third terminal device (such as the second terminal device and the third terminal device) may be the terminal device in (b) in Figure 1 Terminal equipment outside the coverage of network equipment.
  • FIG. 1 shows an out-of-coverage architecture of network devices, and a PC5 connection is established between terminal devices, and none of the terminal devices establishes a connection with the network device.
  • Part of the first terminal device, the second terminal device, and the third terminal device mentioned later in the solution provided by the embodiment of this application may be terminals outside the coverage of the network device shown in (c) in Figure 1 equipment.
  • FIG. 2 exemplarily shows a schematic diagram of a possible network architecture to which this embodiment of the present application applies, taking the 5G network architecture as an example.
  • a possible network architecture applicable to this application may include terminal devices (such as UE1, UE2 and UE3 shown in FIG. 2), access network devices (such as next generation (next generation, NG) wireless access network ((radio) access network, (R) AN) equipment) and core network (core network) three parts.
  • terminal devices such as UE1, UE2 and UE3 shown in FIG. 2
  • access network devices such as next generation (next generation, NG) wireless access network ((radio) access network, (R) AN) equipment
  • core network core network
  • a terminal device may include a user equipment (user equipment, UE)-location management component (location management component, LMC).
  • the UE-LMC may be a component or application deployed on a terminal device with a part of the LMF function, and is used to support the positioning service of the PC5 interface.
  • the LMC in each terminal device in FIG. 2 is shown as a dotted line, which is used to indicate that the terminal device side may include an LMC or may not include an LMC.
  • three terminal devices all include an LMC as an example.
  • the terminal equipment shown in FIG. 2 in the embodiment of the present application can be the terminal equipment in each communication system shown in FIG. 1, such as UE1, UE2 and UE3 can be The three terminal devices located in the coverage area of the network device shown in (a) in 1.
  • some of the terminal devices among UE1, UE2 and UE3 may be the terminal devices located within the coverage of the network device as shown in (b) in Figure 1, and another part of the terminal devices among UE1, UE2 and UE3 may be the terminal devices shown in Figure 1 (b).
  • UE1, UE2, and UE3 may be three terminal devices located outside the coverage of the network device as shown in (c) in FIG. 1 .
  • the terminal device in the embodiment of this application may include providing voice and/or Devices for data connectivity may include, for example, handheld devices with wireless connectivity, or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (radio access network, RAN), and exchange voice and/or data with the RAN.
  • radio access network radio access network
  • the terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle to everything (V2X) ) terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber Station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user equipment (user device), etc.
  • IoT Internet of things
  • the terminal device may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer built-in mobile devices, and the like.
  • mobile phones or "cellular” phones
  • computers with mobile terminal equipment portable, pocket, hand-held, computer built-in mobile devices, and the like.
  • PCS personal communication service
  • cordless telephone cordless telephone
  • session initiation protocol session initiation protocol
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal device can also be a tablet computer or a computer with a wireless transceiver function.
  • the terminal device can also be a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a smart Wireless terminals in power grids, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • constrained devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc.
  • it includes barcodes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners and other information sensing devices.
  • Access network (access network, AN) equipment may refer to equipment in the access network that communicates with wireless terminal equipment through one or more cells over the air interface.
  • the access network equipment may include LTE system or advanced long-term Evolved base stations (NodeB or eNB or e-NodeB, evolutional Node B) in the evolution (long term evolution-advanced, LTE-A), or may also include the fifth generation mobile communication technology (the 5 th generation, 5G) new
  • the next generation node B (next generation node B, gNB) in the wireless (new radio, NR) system may also include the centralized unit (centralized unit, CU) in the cloud access network (cloud radio access network, Cloud RAN) system ) and a distributed unit (distributed unit, DU), which are not limited in this embodiment of the present application.
  • the eNB may include various forms of macro base stations, micro base stations (also called small cells), relay stations, access points, wearable devices, and vehicle-mounted devices.
  • the eNB can also be a transmission and reception node (Transmission and Reception Point, TRP).
  • TRP Transmission and Reception Point
  • the gNB may include various forms of macro base stations, micro base stations (also called small cells), relay stations, access points, wearable devices, and vehicle-mounted devices.
  • the gNB may also be a TRP or a transmission measurement function (Transmission measurement function, TMF).
  • TMF Transmission measurement function
  • the gNB may include CU and DU integrated on the gNB.
  • the terminal device and the serving base station can communicate through the Uu link, for example, can communicate with the Ng-eNB through the LTE-Uu link, and can communicate with the gNB through the NR-Uu link.
  • Ng-eNB is a base station of LTE
  • gNB is a base station of NR.
  • the base stations can communicate through the Xn interface.
  • the network elements related to positioning in the core network mainly include: access and mobility management function (access and mobility management function, AMF) network elements, location management function (location management function, LMF) network elements, etc. It may also include an evolution service mobile location center (evolutional server mobile location center, E-SMLC) network element, a unified data management (unified data management, UDM) network element, and an application function (application function, AF) network element.
  • AMF access and mobility management function
  • LMF location management function
  • E-SMLC evolution service mobile location center
  • UDM unified data management
  • AF application function
  • the LMF network element can realize the position estimation of the terminal equipment, and the communication between the AMF and the LMF is carried out through the NLs interface.
  • the location management device in the embodiment of the present application may be the LMF or UE-LMC in Fig. 2, etc., or it may be a network with the functions of the above-mentioned LMF or UE-LMC in the sixth generation (6th generation, 6G) network in future communications. Yuan, which is not limited in this application.
  • CSI channel state information
  • RS reference signal
  • FIG. 3 it is a possible schematic diagram of the triggering process of SL CSI.
  • the SL CSI reporting between terminal devices only involves the communication between two terminal devices.
  • the two terminal devices are respectively called UE2 and UE1.
  • UE2 hopes to obtain the SL CSI obtained by measuring the SL CSI-RS of UE1.
  • the triggering process may include the following steps.
  • Step 301 UE2 sends PC5 radio resource control (radio resource control, RRC) signaling to UE1.
  • PC5 radio resource control radio resource control, RRC
  • the PC5RRC signaling includes SL CSI-RS configuration information and SL CSI configuration information.
  • the configuration information of the SL CSI-RS includes the port number of the SL CSI-RS, the symbol index in the time slot and the resource element (resource element, RE) index in the resource block (resource block, RB) on the symbol.
  • the configuration information of the SL CSI-RS does not include the time slot and bandwidth of the SL CSI-RS.
  • PSSCH physical sidelink shared channel
  • the configuration information of the SL CSI configured by the above PC5 RRC signaling may include the delay bound of the SL CSI.
  • the SL CSI delay bound is used to indicate the duration of SL CSI-RS measurement and SL CSI reporting.
  • Step 302a UE2 sends a physical sidelink control channel (physical sidelink control channel, PSCCH) to UE1.
  • a physical sidelink control channel physical sidelink control channel, PSCCH
  • the PSCCH carries the first type of sidelink control information (sidelink control information, SCI) (1st stage SCI, SCI format 1-A), indicating the scheduling information of the PSSCH and the PSCCH reservation information.
  • sidelink control information sidelink control information, SCI
  • SCI sidelink control information
  • the scheduling information of the PSSCH includes the bandwidth of the sub-channel included in the PSSCH, and the sub-channel included in the PSSCH is used to bear the SL CSI-RS.
  • step 302b UE2 sends a physical sidelink shared channel (PSSCH) and SL CSI-RS to UE1.
  • PSSCH physical sidelink shared channel
  • the PSSCH carries the second type SCI (2nd stage SCI, SCI format 2-A/2-B), and SL-shared channel (shared channel, SCH) load.
  • the 2nd stage SCI indicates the information of SL-SCH load and the feedback indication for SL-SCH demodulation.
  • the 2nd stage SCI can also trigger the reception of SL CSI-RS, that is, instruct UE1 to receive SL CSI-RS.
  • CSI request CSI request
  • the 2nd stage SCI can also trigger the reception of SL CSI-RS, that is, instruct UE1 to receive SL CSI-RS.
  • the CSI request (CSI request) field in the 2nd stage SCI received by UE1 is set to 1
  • UE1 receives the SL CSI-RS in the time slot where the PSSCH is located, and the receiving bandwidth is the same as the bandwidth corresponding to the subchannel contained in the PSSCH indicated by the 1st stage SCI .
  • step 303 UE1 completes SL CSI-RS measurement within the delay bound of SL CSI, and generates a SL CSI report.
  • Step 304 UE1 sends PSCCH and PSSCH to UE2.
  • the SL-SCH payload in the PSSCH carries SL CSI reporting (SL CSI reporting).
  • the SL CSI report is carried by a media access control (media access control, MAC) control element (control element, CE) in the SL-SCH.
  • media access control media access control, MAC
  • CE control element
  • UE1 sends SL CSI to UE2 through unicast.
  • a UE1 may receive SL PRSs from multiple terminal devices (such as multiple terminal devices such as UE2 and UE3), UE1 needs to measure each received SL PRS, and needs to measure each SL PRS The measurement results corresponding to the PRS are returned to the terminal equipment corresponding to the SL PRS. That is to say, in a positioning scenario, UE1 may need to return SL PRS measurement results to a large number of terminal devices.
  • UE1 Before UE1 sends a signaling to a terminal device (such as UE2) through unicast, UE1 needs to find out available resources, and can only send control information once in a time slot, that is, in A resource can only be scheduled once in a time slot, and then the unicast message is sent to a terminal device through the resource.
  • a terminal device such as UE2
  • Available resource information needs to be queried, and when a resource information is determined, a signaling is unicast to the terminal device (such as UE2) using the resource.
  • UE1 uses unicast to send measurement results to multiple terminal devices (such as multiple terminal devices such as UE2 and UE3), UE1 needs to query the available resource information once for each unicast. A resource is scheduled for transmission in the slot. It can be seen that the overall process of UE1 sending the measurement results to multiple terminal devices through unicast takes a very long time.
  • an embodiment of the present application may provide a positioning information transmission solution, in which the first terminal device may receive N sidelink positioning reference signals from N terminal devices.
  • N is a positive integer.
  • the first terminal device determines the received N sidelink links
  • the position reference signal is measured, and the measurement results of N sidelink positioning reference signals are obtained.
  • the first terminal device broadcasts or multicasts the first message.
  • the first message may include N pieces of information, and for the convenience of understanding, the N pieces of information may also be referred to as N pieces of information.
  • Each of the N information blocks includes one or more measurement results of a sidelink positioning reference signal sent from a terminal device.
  • Each of the N information blocks further includes indication information for indicating the terminal device corresponding to the measurement result of the sidelink positioning reference signal included in the information block.
  • the first terminal device performs measurement based on a sidelink positioning reference signal sent by a terminal device, and obtains a measurement result of a sidelink positioning reference signal. This terminal device can be called a sidelink positioning reference signal.
  • the terminal device corresponding to the measurement result of the signal.
  • the first message is sent by broadcast or multicast.
  • the destination address in the first message is a multicast address.
  • the number of information blocks included in the first message may be one (for example, N information blocks are the first information), and the number of information blocks included in the first message may also be multiple (N information blocks include the first information and second information), which are not limited in this embodiment of the application.
  • the terminal device among the N terminal devices can obtain the information block corresponding to the terminal device from the first message, and then obtain the information block from the information block. Based on the measurement result of the sidelink positioning reference signal sent by the terminal device, the terminal device is positioned based on the measurement result of the sidelink positioning reference signal.
  • the first terminal device may put the measurement results of multiple sidelink positioning reference signals into one message, and schedule one resource for transmission in one time slot through one control message. That is to say, in this application, the first terminal device can send the measurement results of the multiple sidelink positioning reference signals by scheduling a resource in one time slot, thereby reducing the delay and improving the measurement of the sidelink positioning reference signals The transfer efficiency of the results.
  • the N terminal devices in the embodiment of the present application may be one terminal device or multiple terminal devices.
  • the N terminal devices include at least the first terminal device as an example, and the N terminal devices are also used
  • the device includes at least a first terminal device and a second terminal device as an example for introduction.
  • the N terminal devices include more terminal devices, the solution is similar and will not be repeated here.
  • Fig. 4 exemplarily shows a schematic flowchart of a possible positioning information transmission method provided by the embodiment of the present application. This method is demonstrated by taking the first terminal device and the second terminal device as the execution subject. In practical applications, the solution executed on the first terminal device side can also be executed by a unit, module or chip inside the first terminal device. The solution executed on the side of the terminal device may also be executed by a unit, module or chip inside the second terminal device.
  • the first terminal device and the second terminal device in FIG. 4 may be the two terminal devices in each scene in FIG. 1.
  • the first terminal device and the second terminal device in the embodiment of the present application may be ( a) Two terminal devices located within the coverage area of the network device shown.
  • any one of the first terminal device and the second terminal device (such as the first terminal device) in the embodiment of the present application may be a terminal device located within the coverage of the network device as shown in (b) in FIG.
  • the other of the first terminal device and the second terminal device may be a terminal device located outside the coverage of the network device as shown in (b) in Figure 1, and the second terminal device does not communicate with The network device establishes a connection, and the first terminal device establishes a connection with the network device.
  • the first terminal device and the second terminal device in this embodiment of the present application may be two terminal devices located outside the coverage of the network device as shown in (c) in FIG. 1 .
  • the first terminal device and the second terminal device in FIG. 4 may be any two terminal devices in the aforementioned UE1, UE2 or UE3 in FIG. 2 .
  • the method includes:
  • Step 400 The second terminal device sends the third message through unicast, multicast or broadcast.
  • the first terminal device receives the third message.
  • the third message may carry scheduling information of the first sidelink positioning reference signal.
  • the scheduling information of the first sidelink positioning reference signal may include resource information of the first sidelink positioning reference signal, and the resource information may include time domain resource information allocated for the first sidelink positioning reference signal, and /or frequency domain resource information, etc.
  • the third message may include a subchannel used to carry the first sidelink positioning reference signal.
  • the third message may include sidelink control information (sidelink control information, SCI), where the SCI includes time domain resource information allocated for the first sidelink positioning reference signal, and/or frequency domain resources information etc.
  • SCI sidelink control information
  • the terminal device that has received the third message may receive the first sidelink positioning reference signal according to the scheduling information of the first sidelink positioning reference signal.
  • the third message may further include indication information of the first sidelink positioning reference signal.
  • the indication information of the first sidelink positioning reference signal may include an index value corresponding to the first sidelink positioning reference signal.
  • the third message may include sidelink control information (sidelink control information, SCI), where the SCI includes a trigger status field, where the value carried by the trigger status field may include, for example, an index of the sidelink positioning reference signal value, the first sidelink positioning reference signal sent by the second terminal device is the sidelink positioning reference signal corresponding to the index value of the sidelink positioning reference signal.
  • SCI sidelink control information
  • the first terminal device receives the third message, and determines the index value of the sidelink positioning reference signal from the trigger state field in the third message.
  • the first terminal device and the second terminal device may respectively preconfigure the association relationship between the index value of the sidelink positioning reference signal and the resource information of the sidelink positioning reference signal. Therefore, after determining the index value of the sidelink positioning reference signal from the third message, the first terminal device may, according to the association between the index value of the sidelink positioning reference signal and the resource information of the sidelink positioning reference signal relationship, determine the resource information corresponding to the index value of the sidelink positioning reference signal, and then receive the first sidelink positioning reference signal on the resource corresponding to the resource information.
  • the association relationship between the identifier of the sidelink positioning reference signal and the index value of the sidelink positioning reference signal can be preconfigured on the first terminal device and the second terminal device respectively, so as to ensure that the first terminal device The same sidelink positioning reference signal is determined as the second terminal device according to the same index value of the sidelink positioning reference signal.
  • the third message may include an SCI and a sidelink shared channel (sidelink shared channel, SL-SCH) (sidelink shared channel) message.
  • the SCI provides scheduling information of the SL-SCH.
  • the SL-SCH may include resource information of the first sidelink positioning reference signal (time domain resource information and/or frequency domain resource information allocated for the first sidelink positioning reference signal, etc.), and/or the The index value of the first sidelink positioning reference signal, etc.
  • Step 401 the second terminal device sends a first sidelink positioning reference signal.
  • the first terminal device receives the first sidelink positioning reference signal from the second terminal device.
  • the third message in step 400 may be sent by unicast, and the destination address of the third message is a unicast address (in this example, the destination address of the third message is the first terminal device the address of).
  • the intended recipient of the third message is only the first terminal device.
  • the other terminal equipment can also determine the time-frequency resource occupied by the first sidelink positioning reference signal, and then use the When sending the sidelink positioning reference signal, the time-frequency resource avoids the time-frequency resource occupied by the first sidelink positioning reference signal.
  • the third message in step 400 may be sent in a multicast manner, that is, the destination address of the third message is a multicast address.
  • the receiver of the third message may be a group of terminal devices.
  • the group of end devices can Contains one or more end devices.
  • the group of terminal devices includes the first terminal device, and may also include other terminal devices.
  • one or more terminal devices in the group of terminal devices can obtain the scheduling information of the first sidelink positioning reference signal
  • one or more terminal devices in the group of terminal devices can obtain the scheduling information of the first side link positioning reference signal according to the first side link
  • the scheduling information of the uplink positioning reference signal receives the first side link positioning reference signal.
  • the third message in step 400 may be sent in a broadcast manner.
  • one or more terminal devices can obtain the scheduling information of the first sidelink positioning reference signal, and one or more terminal devices can receive the first sidelink positioning reference signal according to the scheduling information of the first sidelink positioning reference signal Sidelink positioning reference signal.
  • Step 402 the first terminal device sends the first message by broadcast or multicast.
  • the second terminal device receives the first message.
  • the first message is sent by broadcast or multicast.
  • the first message includes first information, and the first information includes first indication information and second indication information.
  • the second indication information may be used to indicate the measurement result of the sidelink positioning reference signal
  • the first indication information may be used to indicate which terminal device sends the measurement result of the sidelink positioning reference signal in the first information. Measurement results of downlink positioning reference signals.
  • the first indication information is used to indicate that the first information is information corresponding to the target terminal device.
  • the second indication information is used to indicate the measurement result of the sidelink positioning reference signal sent by the target terminal device.
  • the second terminal device can determine whether the first information is It is the information corresponding to the second terminal device.
  • the second terminal device may determine that the second indication information in the first information is used to indicate the measurement result of the first sidelink positioning reference signal sent by the second terminal device, and then the second terminal device may, according to the second indication information A measurement result of the first sidelink positioning reference signal is obtained. The measurement results of the first sidelink positioning reference signal are used to determine the location of the second terminal device.
  • the second terminal device may determine that the measurement result of the sidelink positioning reference signal indicated by the second indication information in the first information is not the result of the first sidelink positioning reference signal sent by the second terminal device As a result of the measurement, the second terminal device can then discard the first information.
  • the first indication information is used to indicate that the first information is information corresponding to the second terminal device.
  • the second indication information indicates the measurement result of the first sidelink positioning reference signal.
  • the measurement result of the first sidelink positioning reference signal can be flexibly selected according to the positioning technology.
  • the measurement result of the first sidelink positioning reference signal can include one or more of the following contents : Signal to interference plus noise ratio (SINR), RSRP, reference signal receiving quality (reference signal receiving quality, RSRQ), relative time of arrival (relative time of arrival) of the first sidelink positioning reference signal , RTOA), angle of arrival (angle of arrival, AOA), or signal transmission time difference (such as the signal transmission time difference corresponding to TDOA or RTT technology).
  • SINR Signal to interference plus noise ratio
  • RSRP reference signal receiving quality
  • RSRQ relative time of arrival
  • RTOA relative time of arrival
  • angle of arrival angle of arrival
  • the measurement result may also be a quantitative result of the foregoing multiple measurement results.
  • the second terminal device may send the third message in a unicast, multicast or multicast manner.
  • multiple terminal devices may receive the first message according to the scheduling information of the first sidelink positioning reference signal in the received third message The sidelink positioning reference signal, and then multiple terminal devices can measure a first sidelink positioning reference signal sent by the second terminal device, and then the multiple terminal devices can respectively obtain the first sidelink positioning reference signal
  • the measurement result of the positioning reference signal is returned to the second terminal device.
  • the second terminal device determines the location information of the second terminal device according to the measurement results of the first sidelink positioning reference signal measured by the multiple terminal devices, so that the positioning accuracy of the second terminal device can be further improved.
  • the first terminal device can feed back the measurement result of the positioning reference signal by broadcasting or multicasting, it can reduce the time consumption of the whole process of feeding back the measurement result of the positioning reference signal by the first terminal device, thereby improving the efficiency of the terminal.
  • the speed at which the device is positioned since the first terminal device can feed back the measurement result of the positioning reference signal by broadcasting or multicasting, it can reduce the time consumption of the whole process of feeding back the measurement result of the positioning reference signal by the first terminal device, thereby improving the efficiency of the terminal. The speed at which the device is positioned.
  • UE1 needs to feed back the measurement results of the sidelink positioning reference signal to UE2 and UE3 respectively, then UE1 can broadcast or groupcast Send a message.
  • the one piece of signaling may include the measurement result of the sidelink positioning reference signal to be fed back to UE2 and the measurement result of the sidelink positioning reference signal to be fed back to UE3.
  • UE1 only needs to query the available resource information once, Furthermore, sending one signaling based on the queried resource information may achieve the purpose of transmitting multiple measurement results of the sidelink positioning reference signal, thereby reducing the time spent in the whole process of UE1 feeding back the measurement result of the sidelink positioning reference signal. Time-consuming, and thus can improve the speed of terminal device positioning.
  • the measurement result of the sidelink positioning reference signal occupies a relatively small number of bits, it is not necessary to send an appropriate amount of multiple measurement results of the sidelink positioning reference signal through one signaling. There is a problem of fragmentation caused by an excessive number of bits in one signaling.
  • the maximum length of a message in radio resource control (RRC) of a cellular network can be 45 kilobytes (Kilo Byte), but it needs to be sent in 5 segments.
  • the measurement result of the sidelink positioning reference signal is the time difference between sending and receiving of two sidelink positioning reference signals
  • the measurement result may occupy about 40 bits, and an appropriate amount of multiple measurement results are put into one signaling to control If the signaling does not exceed 9 kilobytes (Kilo Byte), the signaling may not be segmented.
  • the first information in the first message in step 402 is shown as the information corresponding to the second terminal device.
  • the first indication information in the embodiment of the present application indicates the following information at least one of a1, information a2 or information a3.
  • Information a1 identification information of the second terminal device.
  • the identification information of the second terminal device may be carried in a third message, which is sent by the second terminal device to the first terminal device through the above step 400 .
  • the first terminal device may use the identification information of the second terminal device carried in the third message as the first indication information in the first information.
  • the second terminal device may determine the The measurement result of the sidelink positioning reference signal is the measurement result of the first sidelink positioning reference signal sent by the second terminal device.
  • the second terminal device may also send the identification information of the second terminal device to the first terminal device through other signaling, for example, the first terminal device and the second terminal device pass a signal before step 400 Ling Jian
  • the second terminal device may send the identification information of the second terminal device to the first terminal device through interactive signaling.
  • the identification information of the second terminal device may be pre-configured on the first terminal device side, and an indication information (or called an index of the identification information of the terminal device) may be set for the identification information of the second terminal device. value), when the second terminal device sends the indication information to the first terminal device through a third message or other signaling, the first terminal device can The association relationship of the information determines the identification information of the second terminal device, and then the first terminal device may carry the identification information of the second terminal device in the first message.
  • the identification information of the second terminal device may include the identification of the second terminal device, the index value of the identification of the second terminal device, the hash value of the identification of the second terminal device, or the corresponding first at least one of the random numbers.
  • the first random number corresponding to the second terminal device may be a random number randomly generated by the second terminal device, and the second terminal device may send the first random number to the first random number through a third message or other messages.
  • the terminal device and then the first terminal device may carry the first random number as the first indication information in the first message, and when the second terminal device determines that the first indication information in the first information is the first random number, the second The terminal device may determine that the measurement result carried in the first information is the measurement result corresponding to the first sidelink positioning reference signal sent by the second terminal device.
  • the identifier of the second terminal device may include at least one of the following:
  • T-ID Temporary identification
  • the high layer may include a vehicle to everything (V2X) layer and/or a proximity service (Proximity-based services, ProSe) layer and the like.
  • V2X vehicle to everything
  • ProSe proximity service
  • Information a2 identification information of resources of the first sidelink positioning reference signal.
  • the resource identification information of the first sidelink positioning reference signal may be the resource index of the resource of the first sidelink positioning reference signal, for example, the resource index may be the resource index of the first sidelink positioning reference signal A resource identifier (Identity, ID), or an identifier of a resource set to which the resource of the first sidelink reference signal belongs.
  • the resource set includes at least resources of the first sidelink reference signal, and may also include resources of other sidelink reference signals.
  • the scheduling information of the first sidelink reference signal carried in the third message may indicate resource identification information of the first sidelink positioning reference signal, so that the first terminal device may The identification information of the resource of the first sidelink positioning reference signal is determined from the third message, and then the identification information of the resource of the first sidelink positioning reference signal may be carried in the first message.
  • the indication information of the first sidelink positioning reference signal includes: the time domain resource information of the first sidelink positioning reference signal, and/or the time domain resource information of the first sidelink positioning reference signal index value.
  • the time-domain resource information of the first sidelink positioning reference signal may include timestamp information corresponding to the first sidelink positioning reference signal, such as the first sidelink positioning reference signal time slot and/or subframe index etc.
  • an index value may also be configured for the sidelink positioning reference signal.
  • the scheduling information of the first sidelink reference signal carried in the third message may indicate the indication information of the first sidelink positioning reference signal, so that the first terminal device may obtain the information from the first sidelink positioning reference signal.
  • the indication information of the first sidelink positioning reference signal is determined in the three messages, and then the indication information of the first sidelink positioning reference signal may be carried in the first message.
  • FIG. 5 exemplarily shows a schematic flowchart of another possible location information transmission method provided by the embodiment of the present application.
  • the first terminal device may receive sidelink positioning reference signals from one or more terminal devices, and then may pass the measurement results of one or more sidelink positioning reference signals through a message Commands are sent by broadcast or multicast.
  • FIG. 5 an example is taken by taking that the first terminal device receives at least the first sidelink positioning reference signal from the second terminal device and the second sidelink positioning reference signal from the third terminal device.
  • step 500 and step 501 may also be included:
  • Step 500 The third terminal device sends the fourth message by unicast, multicast or broadcast.
  • the first terminal device receives the fourth message.
  • the fourth message may carry scheduling information of the second sidelink positioning reference signal.
  • For the related description of the fourth message refer to the description of the third message, and for the manner of sending the fourth message by the third terminal device, refer to the manner for sending the third message by the second terminal device, which will not be repeated here.
  • Step 501 The third terminal device sends a second sidelink positioning reference signal.
  • the description of the second sidelink positioning reference signal please refer to the description of the first sidelink positioning reference signal.
  • the method of sending the second sidelink positioning reference signal by the third terminal device please refer to the description of the second sidelink positioning reference signal.
  • the manner of positioning the reference signal in the first sidelink will not be repeated here.
  • the first message sent by the first terminal device may also Include the second information.
  • the second information may also include two indication information, which may be respectively referred to as third indication information and fourth indication information for distinction.
  • the fourth indication information may be used to indicate the measurement result of the sidelink positioning reference signal
  • the third indication information may be used to indicate which terminal device sent the measurement result of the sidelink positioning reference signal in the second information. Measurement results of downlink positioning reference signals.
  • the third indication information is used to indicate that the first information is information corresponding to the second terminal device.
  • the fourth indication information indicates the measurement result of the second sidelink positioning reference signal.
  • the third indication information indicates at least one of the following: identification information of the third terminal device, identification information of resources of the second sidelink positioning reference signal, or indication information of the second sidelink positioning reference signal .
  • identification information of the third terminal device identification information of resources of the second sidelink positioning reference signal
  • indication information of the second sidelink positioning reference signal For relevant content, please refer to the relevant description of the first information, and details will not be repeated here.
  • step 500 and step 501 may be before step 400 or after step 400 .
  • step 500 and step 501 may be before step 401 or after step 401.
  • step 500 or step 501 may be before step 401 or after step 401.
  • FIG. 6 exemplarily shows a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • step 601 may also be included:
  • Step 601 The second terminal device sends a first measurement request message through unicast, multicast or broadcast.
  • the first measurement request message requests measurement of the first sidelink positioning reference signal.
  • the first terminal device receives the first measurement request message from the second terminal device. After receiving the first measurement request message, the first terminal device may measure the first sidelink positioning reference signal according to the first measurement request message.
  • the first measurement request message may further carry identification information of the second terminal device.
  • the identification information of the second terminal device carried in the first measurement request message may be the same as or different from the identification information of the second terminal device carried in the third message.
  • the identification information of the second terminal device carried in the first measurement request message may include the identification of the second terminal device, the index value of the identification of the second terminal device, the hash value of the identification of the second terminal device, or At least one item in the first random number corresponding to the second terminal device.
  • the identification information of the second terminal device reference may also be made to the foregoing content, and details are not repeated here.
  • the first terminal device may use the identification information of the second terminal device carried in the third message as the first indication information, or may use the identification information of the second terminal device carried in the first measurement request message as the first indication information. Instructions.
  • the second terminal device may also use the first measurement request message to carry the resource identification information (information a2) of the first sidelink positioning reference signal and/or the first sidelink positioning reference signal Refer to the indication information (information a3) of the signal, etc.
  • the first terminal device may generate the first indication information according to the information carried in the first measurement request message.
  • the first terminal device may use the resource identification information (information a2) of the first sidelink positioning reference signal carried in the first measurement request message as the first indication information.
  • the first terminal device may use the indication information (information a3) of the first sidelink positioning reference signal carried in the first measurement request message as the first indication information.
  • the first measurement request message may further carry first positioning measurement type information, where the first positioning measurement type information indicates the type of the measurement result of the first sidelink positioning reference signal.
  • the second terminal device can flexibly instruct the first terminal device to measure the first sidelink positioning reference signal, thereby improving the flexibility of the solution.
  • the type of the measurement result of the first sidelink positioning reference signal in the embodiment of the present application may include one or more of the following: SINR, RSRP, RSRQ, RTOA, AOA of the first sidelink positioning reference signal , or signal transmission time difference (such as the signal transmission time difference corresponding to TDOA or RTT technology).
  • the first terminal device may use the information indicating the time when the first sidelink positioning reference signal arrives at the first terminal device as the second The second indication information is carried in the first information, so that the second terminal device obtains the time when the first sidelink positioning reference signal arrives at the first terminal device according to the second indication information.
  • the type of the measurement result of the first sidelink positioning reference signal may be preset on the side of the first terminal device.
  • the first terminal device can measure the first sidelink positioning reference signal according to the preset information of the type of the measurement result of the first sidelink positioning reference signal, and obtain the information related to the first sidelink positioning reference signal.
  • the measurement result matches the type of the measurement result of the positioning reference signal.
  • the first measurement request message may be included in PSSCH or SL-SCH.
  • the second terminal device may send the first measurement request message together with the first sidelink positioning reference signal to the first terminal device, for example, a single SCI may be used to schedule the PSSCH/SL-SCH and the first sidelink positioning reference signal. A downlink positioning reference signal. Another possible reality
  • the second terminal device may send the first measurement request message and the first sidelink positioning reference signal to the first terminal device respectively in two SCI schedulings.
  • the first sidelink positioning reference signal in step 601 may be sent in a unicast manner, and the destination address of the first measurement request message is a unicast address (in this example, the first measurement The destination address of the request message is the address of the first terminal device).
  • the recipient of the first measurement request message is only the first terminal device. In this case, only the first terminal device can obtain the first measurement request message, and then only the first terminal device can obtain the first measurement request message according to the first measurement request message. Measurements are requested on the first sidelink positioning reference signal.
  • the first measurement request message in step 601 may be sent in a multicast manner, that is, the destination address of the first measurement request message is a multicast address.
  • the receiver of the first measurement request message may be a group of terminal devices.
  • the group of terminal devices may include one or more terminal devices.
  • the group of terminal devices includes the first terminal device, and may also include other terminal devices.
  • one or more terminal devices in the group of terminal devices can obtain the first measurement request message, and one or more terminal devices in the group of terminal devices can perform the first measurement request according to the request of the first measurement request message.
  • the sidelink positioning reference signal is used for measurements.
  • the first measurement request message in step 601 may be sent in a broadcast manner.
  • one or more terminal devices can obtain the first measurement request message, and the one or more terminal devices can measure the first sidelink positioning reference signal according to the request of the first measurement request message.
  • the sending manners of the third message and the first measurement request message may match.
  • the third message is unicast, and the first measurement request message may also be unicast.
  • the third message is multicast, and the first measurement request message may also be multicast.
  • the third message is a broadcast, and the first measurement request message may also be a broadcast.
  • the sending manners of the third message and the first measurement request message may not match.
  • the first measurement request message is broadcast, and the third message is multicast or unicast.
  • the terminal device that receives the first measurement request message and the third message at the same time can refer to the first sidelink location signal to measure.
  • step 601 in this embodiment of the present application may be performed simultaneously with step 401, for example, sending the first measurement request message and the first sidelink positioning reference signal through one signaling.
  • step 601 is performed before step 401 .
  • step 601 is used as an example before step 500 and after step 400.
  • step 601 has no absolute sequence relationship with any of step 400, step 500, step 602, and step 501, such as step 601. It can be performed after step 500 or before step 400 .
  • step 602 may also be included:
  • Step 602 The third terminal device sends the second measurement request message through unicast, multicast or broadcast.
  • the second measurement request message requests measurement of the second sidelink positioning reference signal.
  • the first terminal device receives the second measurement request message from the third terminal device. After receiving the second measurement request message, the first terminal device may measure the second sidelink positioning reference signal according to the second measurement request message.
  • Fig. 6 is a schematic flowchart of another location information transmission method provided on the basis of Fig. 5, and the solution provided in Fig. 6 can also be combined with the aforementioned Fig. 4. In this case, the Step 500, step 602 and step 501 can be removed from FIG. 6 .
  • the second terminal device can also request the first terminal device to measure the first sidelink positioning reference signal by sending the first measurement request message, and further can also pass the first measurement request message
  • the message carries information such as the type of the measurement result of the first sidelink positioning reference signal, so that the second terminal device can further
  • the type of the measurement result of the first sidelink positioning reference signal can be selected flexibly, so that the flexibility of the solution can be improved.
  • FIG. 7 exemplarily shows a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • step 701 may also be included:
  • Step 701 the first terminal device sends a second message.
  • the second terminal device receives the second message from the first terminal device.
  • the first terminal device may send the second message in a unicast, multicast or broadcast manner
  • FIG. 7 shows an example in which the first terminal device sends the second message in a multicast or broadcast manner.
  • the first terminal device sends the second message through multicast or broadcast, which can reduce the amount of signaling and save resources.
  • the second message may include information b1: time information.
  • the time information indicates: the time when the first terminal device receives the sidelink positioning reference signal, and/or the time when the sidelink positioning reference signal is sent to the first terminal device.
  • the time information indicates: the time when the first terminal device receives the sidelink positioning reference signal, the time when the first sidelink positioning reference signal arrives at the first terminal device may be within the time indicated by the time information.
  • the sending time of the first sidelink positioning reference signal may be within the time indicated by the time information.
  • the first terminal device may send time information by broadcast or multicast, and then notify one or more other terminal devices within which time period the sidelink positioning reference can be sent to the first terminal device. Signal. That is to say, the first terminal device may receive sidelink positioning reference signals from other terminal devices within one or more set time periods. In this way, the first terminal device does not have to be in the "receivable sidelink positioning reference signal state" all the time, but can flexibly select one or more time periods to be in the "receivable sidelink positioning reference signal state". If the first terminal device is in the "receivable sidelink positioning reference signal state", the first terminal device needs to continuously monitor sidelink positioning reference signals from other terminal devices.
  • the first terminal device when the first terminal device is not in the "receivable sidelink positioning reference signal state", the first terminal device does not need to monitor sidelink positioning reference signals from other terminal devices, and then can perform other tasks. It can be seen that the first terminal device can make its own working mode more flexible and reduce the complexity of detecting the sidelink positioning reference signal by the first terminal device by setting the time when the sidelink positioning reference signal can be received. Moreover, more time can also be provided for the first terminal device to perform other tasks.
  • the second terminal device may send the third message in a multicast or broadcast manner, when the second terminal device needs multiple other terminal devices to measure the first sidelink positioning reference signal , the time at which the second terminal device sends the first sidelink positioning reference signal needs to match the time at which the multiple other terminal devices are allowed to send the sidelink positioning reference signal.
  • the first terminal device instructs other terminal devices to send sidelink positioning reference signals during the time period from 8:00 to 9:00
  • the fourth terminal device instructs other terminal devices to send sidelink positioning reference signals from 8:30 to 9:30
  • the sidelink positioning reference signal is sent within a divided time period. If the first terminal device needs the first terminal device and the fourth terminal device to respectively measure the first sidelink positioning reference signal, the first terminal device may send the first Sidelink positioning reference signal.
  • the time information in the information b1 includes at least one of the following information b1-1, information b1-2, information b1-3 or information b1-4.
  • Information b1-1 the index value of the time slot.
  • the index value of the time slot may be a time slot number (also called a time slot number).
  • Time information also comprises first time reference point, and first time reference point can be the reference point of the index value of timeslot, and first time reference point can be system frame number (system frame number, SFN) #0 or direct frame number ( Direct Frame Number, DFN)#0.
  • the direct frame number is a timing system starting from 00 o'clock on January 1, 1900.
  • the length of a DFN is 10ms, and a certain millisecond (ms) offset can also be added on this basis.
  • the first time reference point is SFN#0
  • the time information is the index value of the time slot #003.
  • the second terminal device may determine according to the time information that the time slot recommended by the first terminal device for the second terminal device to send the first sidelink positioning reference signal starts from SFN#0, and the index value of the time slot is #003 time slot.
  • the time information in the second message may refer to the fifth slot within 10 ms. time within a slot of 0.5ms.
  • the first terminal device may use the second message to instruct the second terminal device to send the sidelink positioning reference signal in the fifth 0.5ms time slot within the certain 10ms, or the first terminal device may use the second message to indicate
  • the first terminal device may receive sidelink positioning reference signals of other terminal devices in the fifth 0.5 ms time slot within the certain 10 ms.
  • the time information in the second message may refer to the time information in the ninth 0.25ms time slot within a certain 10ms. time.
  • the first terminal device may use the second message to instruct the second terminal device to send the sidelink positioning reference signal in the ninth 0.25ms time slot within the certain 10ms, or the first terminal device may use the second message to indicate
  • the first terminal device may receive sidelink positioning reference signals of other terminal devices in the ninth time slot of 0.25 ms within the certain 10 ms.
  • the time slot number mentioned in the embodiment of the present application may be an absolute time slot number or a logical time slot number.
  • the absolute time slot numbers of the physical time slots used for sidelink transmission are: 1, 2, 6, 7, etc. respectively.
  • the physical time slots used for sidelink transmission can be renumbered, and the obtained numbers can be called logical numbers.
  • the logical time slot number of time slot 1 (the absolute time slot number is 1) is 0; (the absolute time slot number is 2) the logical time slot number is 1; the logical time slot number of time slot 6 (the absolute time slot number is 6) is 2; the time slot 7 (the absolute time slot number is 7)
  • the logical slot number is 3.
  • Information b1-2 a collection of index values of time slots.
  • Time information may appear in the form of a set of time slot index values, and a set of time slot index values may include one or more time slot index values.
  • the time information further includes a first time reference point.
  • the first time reference point may be a reference point of an index value in the set of index values of the time slot, and the first time reference point may be SFN#0 or DFN#0.
  • the first time reference point is SFN#0.
  • the time information is a collection of index values of time slots, including index value #003 of the time slot and index value #004 of the time slot.
  • the second terminal device may determine according to the time information that the time slot recommended by the first terminal device for the second terminal device to send the first sidelink positioning reference signal starts from SFN#0, and the time slot index values are #003 and # 004 time slot.
  • the index value of the time slot set indicates the time slot set
  • the time slot set includes one or more time slots.
  • the time information may be an index value of a time slot set.
  • the index value of the slot set may be used to indicate the slot set.
  • a slot set may include one or more slots.
  • the corresponding relationship between the index value of the time slot set and the time slot can be pre-configured on the second terminal device, or sent to the second terminal device by other means, so that the second terminal device can determine the time slot according to the index value of the time slot set
  • the first terminal device recommends the time slot used by the second terminal device for sending the first sidelink positioning reference signal.
  • the time information further includes a first time reference point.
  • the first time reference point may be a reference point of an index value of a time slot set, and the first time reference point may be SFN#0 or DFN#0.
  • the first time reference point is SFN#0.
  • the time information is the index value #001 of the time slot set, and the index value #001 of the time slot set is associated with two time slots whose index values are #003 and #004.
  • the second terminal device may determine according to the time information that the time slot recommended by the first terminal device for the second terminal device to send the first sidelink positioning reference signal starts from SFN#0, and the time slot index values are #003 and # 004 time slot.
  • Information b1-4 Information of the time window.
  • the information of the time window may include at least one of the length of the time window, the offset of the time window, or the period of the time window.
  • the start of the time window corresponds to a time slot index, and the system frame index or millisecond offset.
  • the length of the time window corresponds to several time slots, several system frames or several milliseconds
  • the period of the time window corresponds to several time slots and several system frames. or several milliseconds.
  • the start of the time window is SFN#1+5ms
  • the length of the time window is 6ms
  • the period of the time window is 2SFN/20ms
  • the time window includes: SFN#1+5ms to SFN#2+1ms, SFN# 3+5ms to SFN#4+1ms, SFN#5+5ms to SFN#6+1ms, etc.
  • the time information further includes a first time reference point.
  • the first time reference point may be a reference point of the time window information, and the first time reference point may be SFN#0 or DFN#0.
  • the first time reference point is SFN#0.
  • the time information is information of the time window, and the information of the time window includes the length of the time window, the offset of the time window, or the period of the time window.
  • the second terminal device may determine, according to the time information, the time slot recommended by the first terminal device for the second terminal device to use for sending the first sidelink positioning reference signal.
  • the offset of the time window may indicate a time slot or subframe interval between the first time reference point and the time window (such as the first time slot of the time window).
  • the second message may further include information b2: first trigger state information.
  • the first trigger status information is associated with one or more sidelink positioning reference signal resources.
  • the sidelink positioning reference signal resource in the embodiment of the present application may be understood as a time-frequency resource for transmitting the sidelink positioning reference signal, or may also be understood as configuration information of the sidelink positioning reference signal.
  • the first trigger state information is used by the second terminal device to determine the value of the trigger state field in the SCI set when scheduling the first sidelink positioning reference signal.
  • the resource of the first sidelink positioning reference signal is a resource in one or more sidelink positioning reference signal resources associated with the first trigger state information.
  • a trigger state association table may be set, and the trigger state association table may include a correspondence relationship between first trigger state information and resources associated with the first trigger state information.
  • the trigger state association table will be introduced in detail in conjunction with Table 1.
  • Table 1 An example of a trigger state association table
  • the first trigger state information when the first trigger state information is 00, it can be considered that the first trigger state information does not trigger any downlink positioning reference signal resource, or it can be considered that the first trigger state information "00" is not associated with any Sidelink positioning reference signal resources.
  • the first trigger state information is 01, it can be considered that the sidelink positioning reference signal resource #0 is triggered, or the first trigger state information "01" is associated with the sidelink positioning reference signal resource #0.
  • the second terminal device may select sidelink positioning reference signal resource #0 as the resource of the first sidelink positioning reference signal.
  • the first terminal device may send the first trigger state information through the second message, and the second terminal device may select the resource associated with the first trigger state information to transmit the first sidelink positioning reference signal , the resource associated with the first trigger state information may also not be selected to transmit the first sidelink positioning reference signal. That is to say, the first terminal device can recommend resources used by the sidelink positioning reference signal to other terminal devices through the second message, and other terminal devices can use the resources recommended by the first terminal device to transmit the sidelink positioning reference signal , the resource recommended by the first terminal device may also not be used to transmit the sidelink positioning reference signal.
  • the embodiment of this application is not limited.
  • the first trigger state information in Table 1 takes 2 bits as an example.
  • the first trigger state information can be represented by more bits, such as 3 bits, 4bit or 5bit etc.
  • the quantity of the first trigger state information that can be indicated is larger. For example, when the number of bits used in the first trigger state information is 2, it can indicate 4 pieces of first trigger state information, and when the number of bits used in the first trigger state information is 3, it can indicate 8 first trigger states information.
  • the first trigger state information may also be associated with one or more of the following: frequency point information used by the sidelink positioning reference signal, frequency point information corresponding to the sidelink positioning reference signal
  • the bandwidth part (BWP) information, or the first trigger state information is associated with resource pool information corresponding to one or more sidelink positioning reference signal resources.
  • the first trigger state information may be associated with the time information of the above-mentioned information b1.
  • the first trigger state information is used to indicate the time information in the above information b1; or it can also be understood that: the first trigger state information includes the time information in the above information b1.
  • the second terminal device can determine the time information according to the first trigger state information.
  • the first terminal device can send related information such as resources used by other terminal devices recommended by itself to send sidelink positioning reference signals Notifying other terminal devices, so that other terminal devices can use the resources recommended by the first terminal device to send the sidelink positioning reference signal.
  • the first terminal device can recommend sidelink resources that are not occupied or have better channel conditions, so that when other terminal devices transmit sidelink positioning reference signals using the recommended resources, the sidelink resources can be reduced. Interference to the positioning reference signal.
  • step 701 may be included before step 401 or step 501 .
  • FIG. 8 exemplarily shows a schematic flowchart of another possible positioning information transmission method provided by the embodiment of the present application.
  • the method also includes step 801 and step 802:
  • Step 801 the first terminal device sends a fifth message.
  • the first terminal device can send the fifth message by unicast, multicast or broadcast.
  • the first terminal device sends the fifth message by multicast or broadcast, and the second terminal device and the third terminal device receiving the fifth message as an example for illustration.
  • the fifth message may carry scheduling information of the third sidelink positioning reference signal.
  • the scheduling information of the third sidelink positioning reference signal may include resource information of the third sidelink positioning reference signal, and the resource information may include time domain resource information allocated for the third sidelink positioning reference signal, and /or frequency domain resource information, etc.
  • the fifth message may include a subchannel for carrying the third sidelink positioning reference signal.
  • the fifth message may include sidelink control information (sidelink control information, SCI), where the SCI includes time domain resource information allocated for the third sidelink positioning reference signal, and/or frequency domain resources information etc.
  • SCI sidelink control information
  • the terminal device that has received the fifth message may receive the third sidelink positioning reference signal according to the scheduling information of the third sidelink positioning reference signal.
  • the fifth message may further include indication information of the third sidelink positioning reference signal.
  • the indication information of the third sidelink positioning reference signal may include an index value of the third sidelink positioning reference signal.
  • the fifth message may include sidelink control information (sidelink control information, SCI), where the SCI includes a trigger status field, where the value carried by the trigger status field may include, for example, an index of the sidelink positioning reference signal value, the third sidelink positioning reference signal sent by the first terminal device is the sidelink positioning reference signal corresponding to the index value of the sidelink positioning reference signal.
  • the second terminal device receives the fifth message, and determines the index value of the sidelink positioning reference signal from the trigger state field in the fifth message.
  • the first terminal device and the second terminal device may respectively preconfigure the association relationship between the index value of the sidelink positioning reference signal and the resource information of the sidelink positioning reference signal. Therefore, after determining the index value of the sidelink positioning reference signal from the fifth message, the second terminal device may, according to the association between the index value of the sidelink positioning reference signal and the resource information of the sidelink positioning reference signal relationship, determine the resource information corresponding to the index value of the sidelink positioning reference signal, and then receive the third sidelink positioning reference signal on the resource corresponding to the resource information.
  • the association relationship between the identifier of the sidelink positioning reference signal and the index value of the sidelink positioning reference signal can be preconfigured on the second terminal device and the first terminal device respectively, so as to ensure that the second terminal device The same sidelink positioning reference signal as that of the first terminal device is determined according to the same index value of the sidelink positioning reference signal.
  • the fifth message may include an SCI and a sidelink shared channel (sidelink shared channel, SL-SCH) (sidelink shared channel) message.
  • the SCI provides scheduling information of the SL-SCH.
  • the SL-SCH may include resource information of the third sidelink positioning reference signal (time domain resource information and/or frequency domain resource information allocated for the third sidelink positioning reference signal, etc.), and/or the The index value of the third sidelink positioning reference signal, etc.
  • Step 802 The first terminal device sends a third sidelink positioning reference signal.
  • FIG. 8 it is shown by taking the second terminal device and the third terminal device receiving the third sidelink positioning reference signal as an example.
  • the fifth message may be sent in a unicast manner, and a destination address of the fifth message is a unicast address.
  • the first terminal device may send two unicast messages to the second terminal device and the third terminal device.
  • the unicast message sent by the first terminal device to the second terminal device is used as an example for introduction.
  • the first terminal device A unicast message sent by a terminal device to a second terminal device is called a fifth message, and the destination address of the fifth message is the address of the second terminal device. If the fifth message is a unicast message, the recipient of the fifth message is only the second terminal device.
  • the other terminal device can also determine the space occupied by the third side link positioning reference signal The time-frequency resource, and then avoid the time-frequency resource occupied by the third sidelink positioning reference signal when the time-frequency resource needs to be used for sending the sidelink positioning reference signal.
  • the fifth message may be sent in a multicast manner, that is, the destination address of the fifth message is a multicast address.
  • the receiver of the fifth message may be a group of terminal devices.
  • the group of terminal devices may include one or more terminal devices, for example, the group of terminal devices includes a second terminal device and a third terminal device.
  • one or more terminal devices in the group of terminal devices can obtain the scheduling information of the third side link positioning reference signal
  • one or more terminal devices in the group of terminal devices can obtain the scheduling information of the third side link positioning reference signal according to the third side
  • the scheduling information of the uplink positioning reference signal receives the third side link positioning reference signal.
  • the fifth message may be sent in a broadcast manner.
  • one or more terminal devices can obtain the scheduling information of the third sidelink positioning reference signal, and one or more terminal devices can receive the third sidelink positioning reference signal according to the scheduling information of the third sidelink positioning reference signal. Sidelink positioning reference signal.
  • the first terminal device may send the third sidelink positioning reference signal multiple times, and the first terminal device may periodically send the third sidelink positioning reference signal, or it may not sending the third sidelink positioning reference signal periodically.
  • the time information in the foregoing information b1 may include at least one item of information b1-1, information b1-2, information b1-3, information b1-4, or information b1-5.
  • the time interval indication information may indicate the time interval between the time when the first terminal device receives the sidelink positioning reference signal and the second time reference point.
  • the time interval in this embodiment of the present application may be a time slot interval or a subframe interval.
  • the time interval indication information may indicate the time interval between the time when the sidelink positioning reference signal is sent to the first terminal device and the second time reference point.
  • the second time reference point includes the time within one sending period of the third sidelink positioning reference signal.
  • the period of the time window in the time window information in the above information b1-4 can be configured independently, or can be configured with the third sidelink positioning reference signal The cycle is consistent.
  • the second time reference point includes: the transmission time of the third sidelink positioning reference signal, or when the third sidelink positioning reference signal is received signal time.
  • the time interval indication information indicates that the time interval between the time when the sidelink positioning reference signal is sent to the first terminal device and the second time reference point is 5 ms.
  • the second time reference point includes the time at which the third sidelink positioning reference signal was received. Then the second terminal device needs to send the first sidelink positioning reference signal within 5 ms of receiving the third sidelink positioning reference signal.
  • the time interval in this embodiment of the application can be a positive value or a negative value.
  • the time interval is -5ms, it means that the second terminal device sends the first sidelink positioning reference signal first, and the first terminal device sends it later.
  • a third sidelink positioning reference signal it means that the second terminal device sends the first sidelink positioning reference signal first, and the first terminal device sends it later.
  • a third sidelink positioning reference signal it means that the second terminal device sends the first sidelink positioning reference signal first, and the first terminal device sends it later.
  • a third sidelink positioning reference signal is within 5ms.
  • the second message in step 701 may further include configuration information of the third sidelink positioning reference signal.
  • the second message may include period information of the third sidelink positioning reference signal.
  • other terminal devices can periodically receive the third sidelink positioning reference signal according to the period information of the third sidelink positioning reference signal, and since the third sidelink positioning reference signal is sent periodically, other The terminal device may only receive the period information of the third sidelink positioning reference signal once, and then receive the third sidelink positioning reference signal multiple times according to the period information of the third sidelink positioning reference signal, so that The number of times the first terminal device notifies other terminal devices of the configuration information of the third sidelink positioning reference signal is saved, and resources are saved.
  • the period information may include, for example, a period of the third sidelink (one period of the third sidelink is 40 milliseconds (millisecond, ms)), a time slot offset, and the like.
  • the time slot offset may refer to the time slot interval between two periods of the third sidelink, for example, there may be 80 time slots between the two periods.
  • the second terminal device can measure the third sidelink positioning reference signal , for example, RTT technology may be applied to locate the second terminal device.
  • the second terminal device may measure the time difference between receiving the third sidelink positioning reference signal and sending the first sidelink positioning reference signal
  • the first terminal device may measure a time difference between the sidelink positioning reference signal at the sending point and the reception of the first sidelink positioning reference signal, and the two time differences may be used to locate the second terminal device based on the RTT technology.
  • the first terminal device can carry time information through the second message, it can then indicate the time when other terminal devices (taking the second terminal device as an example) send the sidelink positioning reference signal to the first terminal device, so
  • the first terminal device may set the sending time of the third sidelink positioning reference signal closer to the sending time of the first sidelink positioning reference signal, which may also be understood as: the first terminal device may set the sending time of the third sidelink positioning reference signal
  • the sending time of the sidelink positioning reference signal is as close as possible to the sending time of the first sidelink positioning reference signal. Since the terminal equipment may be in a moving state in the sidelink, the sending time of the third sidelink positioning reference signal is as close as possible to the sending time of the first sidelink positioning reference signal to minimize the sidelink The impact of terminal device mobility in the scene.
  • step 801 and step 802 may be included.
  • step 801 and step 802 may be performed after step 701 .
  • Any one of steps 801 and 802 in the embodiment of the present application has no absolute sequence relationship with any of steps 400, 601, 401, 500, 602, 501 and 402.
  • step 802 may be performed before step 401, or may be performed after step 401.
  • Step 802 may be performed before step 501, or may be performed after step 501.
  • FIG. 9 exemplarily shows a schematic flowchart of another possible location information transmission method provided by the embodiment of the present application.
  • the method may also include step 901:
  • Step 901 The network device sends a configuration message.
  • the network device may be the aforementioned network device in FIG. 1 , or the aforementioned access network device in FIG. 2 .
  • the first terminal device can receive the configuration message.
  • the second terminal can also receive configuration messages.
  • the third terminal device can also receive configuration messages.
  • the configuration message may be a radio resource control (radio resource control, RRC) configuration message.
  • the configuration message may include sidelink positioning reference signal resource information, and generally each terminal device determines the resource used for sending the sidelink positioning reference signal according to the configuration message.
  • the configuration message may include the second trigger state information.
  • the second trigger state information is associated with one or more sidelink positioning reference signal resources.
  • the resource used by the first terminal device, the second terminal device or the third terminal device to send the sidelink positioning reference signal may be a resource associated with the second trigger state.
  • the second trigger state information may also be associated with other information. For specific content, please refer to the related introduction of the first trigger state information, which will not be repeated here.
  • information about sidelink positioning reference signal resources may be pre-configured in the first terminal device, the second terminal device, or the third terminal device, for example, the second trigger status information may be pre-configured, such as The second trigger state information can be preconfigured when it leaves the factory, so that the terminal device outside the signal coverage of the network device can determine the sidelink positioning reference signal to be used according to the preconfigured second trigger state.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are the one or more sidelink positioning reference signal resources associated with the second trigger state information resource.
  • the one or more sidelink positioning reference signal resources associated with the first trigger state information are indicated by the network device or selected by the first terminal device. That is to say, after the first terminal device sends a configuration message through the network device or obtains the second trigger state information through pre-configuration, it can generate the first trigger state information according to the second trigger state information, and send the second trigger state information to other terminal devices.
  • a trigger status message that is to say, the resources recommended by the first terminal device to other terminal devices to be used by other terminal devices when sending the sidelink positioning reference signal may be the resources associated with the second trigger state information.
  • the first terminal device, the second terminal device, or the third terminal device sends a configuration message through the network device or obtains the sidelink positioning reference signal resource information through pre-configuration, which may include periodic sidelink positioning reference signal resource information.
  • the configuration of uplink positioning reference signal resources may also include configuration of aperiodic sidelink positioning reference signal resources.
  • the first terminal device may periodically send the third sidelink positioning reference signal by using a configuration of periodic sidelink positioning reference signal resources, or may use a non- Periodic configuration of sidelink positioning reference signal resources
  • the third sidelink positioning reference signal is sent aperiodically.
  • the second terminal device may send the first sidelink positioning reference signal aperiodically by using an aperiodic sidelink positioning reference signal resource configuration.
  • a certain network element for example: A network element
  • B network element receives information from another network element
  • a network element directly receives information from B network element
  • Receiving information may also mean that network element A receives information from network element B via other network elements (for example: network element C).
  • network element C can transparently transmit the information, or process the information, for example, carry the information in different messages for transmission or filter the information , and only send the filtered information to network element A.
  • sending information from network element A to network element B may mean that network element A directly sends information to network element B, or it may mean that network element A transmits information via other network elements (for example: network C). element) sends information to network element B.
  • system and “network” in the embodiments of the present application may be used interchangeably.
  • “At least one” means one or more
  • “Multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple .
  • ordinal numerals such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects degree.
  • FIG. 10 is a schematic structural diagram of a communication device provided in the embodiment of the present application.
  • the communication device can be a first terminal device or a second terminal device, or a chip or a circuit.
  • a chip or circuit in the first terminal device is another example of a chip or circuit that can be provided in the second terminal device.
  • the communication apparatus may be used to execute the method on the first terminal device side or the second terminal device side in the related solutions in any one of the above-mentioned Fig. 4 , Fig. 5 , Fig. 6 , Fig. 7 , Fig. 8 or Fig. 9 .
  • the communication device 1801 includes a processor 1802 and a transceiver 1803 .
  • the communication device 1801 may include a memory 1804 .
  • the dotted line in the memory 1804 in the figure further indicates that the memory is optional.
  • the communication device 1801 may further include a bus system, wherein the processor 1802, the memory 1804, and the transceiver 1803 may be connected through the bus system.
  • the above processor 1802 may be a chip.
  • the processor 1802 may be a field programmable gate array (field programmable gate array, FPGA), may be an application specific integrated circuit (ASIC), may also be a system chip (system on chip, SoC), or It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller) unit, MCU), it can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller micro controller
  • MCU microcontroller
  • PLD programmable logic device
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1802 or instructions in the form of software.
  • the steps of the methods disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor 1802 .
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory 1804, and the processor 1802 reads the information in the memory 1804, and completes the steps of the above method in combination with its hardware.
  • the processor 1802 in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory 1804 in the embodiment of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the relevant description of the memory in the embodiment of the present application reference may be made to the foregoing content, and details are not repeated here.
  • the processor 1802 is configured to execute through the transceiver 1803: receiving the first sidelink positioning reference signal from the second terminal device, sending the first message by broadcast or multicast,
  • the first message includes first information
  • the first information includes first indication information and second indication information.
  • the processor 1802 is further configured to: receive a third message from the second terminal device through the transceiver 1803, the The third message includes scheduling information of the first sidelink positioning reference signal; the third message is sent in a multicast or broadcast manner.
  • the processor 1802 is further configured to: receive a first measurement request message from the second terminal device through the transceiver 1803, The first measurement request message requests to measure the first sidelink positioning reference signal.
  • the processor 1802 is further configured to: receive the second sidelink positioning reference from the third terminal device through the transceiver 1803 Signal.
  • the processor 1802 is further configured to: send a second message through the transceiver 1803, where the second message includes time information.
  • the processor 1802 is further configured to: send the third sidelink positioning reference to the first terminal device through the transceiver 1803 Signal.
  • the processor 1802 is further configured to: send a fifth message by multicast or broadcast through the transceiver 1803, the fifth message including scheduling information indicating the third sidelink positioning reference signal.
  • the processor 1802 is further configured to: acquire second trigger state information.
  • the processor 1802 is configured to execute through the transceiver 1803: sending the first sidelink positioning reference signal, receiving the first message, the first message is sent by broadcast or multicast, and the second A message includes first information, and the first information includes first indication information and second indication information.
  • the processor 1802 is further configured to: send a third message to the first terminal device through the transceiver 1803, and the first The third message includes the scheduling information of the first sidelink positioning reference signal; the third message is sent in a multicast or broadcast manner.
  • the processor 1802 is further configured to: send a first measurement request message to the first terminal device through the transceiver 1803, so The first measurement request message requests to measure the first sidelink positioning reference signal.
  • the processor 1802 is further configured to: receive a second message from the first terminal device through the transceiver 1803, and the second The message includes time information.
  • the processor 1802 is further configured to: receive a third sidelink from the first terminal device through the transceiver 1803 positioning reference signal.
  • the processor 1802 is further configured to: receive a fifth message through the transceiver 1803, where the fifth message includes an instruction indicating that the first The scheduling information of the three sidelink positioning reference signals, the fifth message is sent by multicast or broadcast.
  • the processor 1802 is further configured to: acquire second trigger status information; the second trigger status information is associated with one or more sidelines Link positioning reference signal resources.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • a communication device 1901 may include a communication interface 1903 and a processor 1902 .
  • the communication device 1901 may include a memory 1904 .
  • the dotted line in the memory 1904 in the figure further indicates that the memory is optional.
  • the communication interface 1903 is used to input and/or output information; the processor 1902 is used to execute computer programs or instructions, so that the communication device 1901 realizes any of the above-mentioned FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 or FIG.
  • the communication interface 1903 can implement the solution implemented by the transceiver 1803 in FIG. 10
  • the processor 1902 can implement the solution implemented by the processor 1802 in FIG. 10
  • the memory 1904 can implement the memory 1804 in FIG. 10 The implemented solution will not be described in detail here.
  • FIG. 12 is a schematic diagram of a communication device provided by the embodiment of the present application.
  • the communication device 2001 can be a first terminal device or a second terminal device, or can be a chip or a circuit , such as a chip or circuit that can be provided in the first terminal device or the second terminal device.
  • the communication device 2001 includes a processing unit 2002 and a communication unit 2003 . Further, the communication device 2001 may include the storage unit 2004, or may not include the storage unit 2004. The dotted line in the storage unit 2004 in the figure further indicates that the storage is optional.
  • the communication unit 2003 is used to input and/or output information; the processing unit 2002 is used to execute computer programs or instructions, so that the communication device 2001 implements any of the above-mentioned FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8 or FIG. A method on the side of the first terminal device in a related solution, or enabling the communication device 2001 to implement the second terminal device in any of the above-mentioned related solutions in Figure 4, Figure 5, Figure 6, Figure 7, Figure 8 or Figure 9 side method.
  • the communication unit 2003 can implement the solution implemented by the transceiver 1803 in FIG. 10
  • the processing unit 2002 can implement the solution implemented by the processor 1802 in FIG. 10
  • the storage unit 2004 can implement the memory in FIG. 10
  • the solution implemented in 1804 will not be repeated here.
  • the present application also provides a computer program product, the computer program product including: computer program code or instruction, when the computer program code or instruction is run on the computer, the computer is made to execute the , the method of any one of the embodiments shown in any one of Fig. 5, Fig. 6, Fig. 7, Fig. 8 or Fig. 9 .
  • the present application also provides a computer-readable storage medium, the computer-readable medium stores program codes, and when the program codes are run on a computer, the computer is made to execute the steps shown in Figures 4 and 5. , the method of any one of the embodiments shown in any one of FIG. 6 , FIG. 7 , FIG. 8 or FIG. 9 .
  • the present application further provides a chip system, where the chip system may include a processor.
  • the processor is coupled with the memory, and may be used to execute the method in any one of the embodiments shown in any one of FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 or FIG. 9 .
  • the chip system further includes a memory. Memory, used to store computer programs (also called code, or instructions).
  • the processor is used to call and run the computer program from the memory, so that the device installed with the chip system executes any one of the embodiments shown in any one of Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 or Fig. 9 example method.
  • the present application further provides a system, which includes the foregoing one or more first terminal devices and one or more second terminal devices, and may further include a third terminal device.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • a computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • a computer can be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, a data center, etc. integrated with one or more available media. Available media can be magnetic media (e.g., floppy disk, hard disk, magnetic tape), optical media (e.g., high-density digital video disc (digital video disc, DVD)), or semiconductor media (e.g., solid state disk (solid state disc, SSD) )wait.
  • magnetic media e.g., floppy disk, hard disk, magnetic tape
  • optical media e.g., high-density digital video disc (digital video disc, DVD)
  • semiconductor media e.g., solid state disk (solid state disc, SSD)
  • the second communication device in the above-mentioned various device embodiments corresponds to the second communication device or the first communication device in the first communication device and method embodiments, and corresponding steps are performed by corresponding modules or units, such as communication units (transceivers)
  • the steps of receiving or sending in the method embodiments are executed, and other steps except sending and receiving may be executed by a processing unit (processor).
  • processor processing unit
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be components.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
  • packets of data e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or integrated. to another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • a unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part 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 may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. If the functions are realized in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

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Abstract

一种定位信息传输方法、装置、存储介质和芯片系统，用于提高测量结果的传输效率。第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号，通过广播或组播方式发送第一消息。第一消息包括第一信息，第一信息中的第二指示信息指示侧行链路定位参考信号的测量结果，第一信息中的第一指示信息用于指示该第二指示信息指示的测量结果为第一侧行链路定位参考信号的测量结果，如此，第二终端设备可以在组播或广播发送的第一消息中找到第一侧行链路定位参考信号的测量报告。且由于第一终端设备可以通过组播或广播的方式发送侧行链路定位参考信号的测量结果，因此可以提高测量结果的发送效率。

Description

一种定位信息传输方法、装置、存储介质和芯片系统
相关申请的交叉引用
本申请要求在2022年02月18日提交中国专利局、申请号为202210149647.5、申请名称为“一种定位信息传输方法、装置、存储介质和芯片系统”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
本申请涉及无线通信技术领域，尤其涉及一种定位信息传输方法、装置、存储介质和芯片系统。
背景技术
在3GPP标准中，支持下行到达时间差(down link-time of arrival，DL-TDOA)、下行离开角(down link-angle of departure，DL-AOD)、上行到达时间差(up link-time of arrival，UL-TDOA)、上行到达角(up link-angle of arrival，UL-AOA)、往返时延(round trip time，RTT)等多种定位技术。其中DL-TDOA、UL-TDOA以及RTT算法是基于到达时间的定位技术，即需要接收端来测量发送端发送的信号的到达时间，进而换算成二者之间的距离信息，最后得到待定位目标的位置。DL-AOD和UL-AOA是基于角度的定位技术，即接收端测量发送端发送的参考信号的到达角度，然后根据接收方与已知位置的多个发送端的角度信息来推断接收方的位置。
对于DL-TDOA、DL-AoA、RTT等定位技术，目前仅支持终端设备与基站之间基于定位参考信号(positioning reference signal，PRS)的测量，因此在侧行链路中，如何传输定位信息成为亟需解决的问题。
发明内容
本申请提供一种定位信息传输方法、装置、存储介质和芯片系统，用于通过广播或组播的方式基于侧行链路发送各个终端设备对应的定位参考信号的测量结果，以解决侧行链路中传输定位信息的问题，且也可以提高测量结果的传输效率。
第一方面，提供了一种定位信息传输方法。该方法可以由第一终端设备执行，或者由第一终端设备内部的模块、单元、芯片执行。该方法中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号，通过广播或组播方式发送第一消息。第一消息包括第一信息，第一信息包括第一指示信息和第二指示信息。
第一信息中的第二指示信息指示侧行链路定位参考信号的测量结果，第一信息中的第一指示信息用于指示该第二指示信息指示的测量结果为第一侧行链路定位参考信号的测量结果，如此，第二终端设备可以在组播或广播发送的第一消息中找到第一侧行链路定位参考信号的测量报告。第一侧行链路定位参考信号的测量报告用于确定第二终端设备的位置，第一侧行链路定位参考信号的测量报告可以称为第二终端设备的定位信息。
由于在侧行链路通信中，在一次单播消息的发送过程中，第一终端设备需要先查找出可用的资源，在一个时隙中仅可以发送一次控制信息，即在一个时隙中仅可以调度一次资 源，继而通过该资源向一个终端设备发送该单播的消息。若采用单播形式向多个终端设备发送多个侧行链路定位参考信号的测量结果，则第一终端设备需要在多个时隙分别发送多次控制信息，以便调度多个资源来发送该多个侧行链路定位参考信号的测量结果。可以看出，该方案时延较大。
而本申请中，第一终端设备可以将多个侧行链路定位参考信号的测量结果放在一个信息中，在一个时隙中通过一次控制信息调度一个资源进行发送。也就是说，本申请中第一终端设备在一个时隙调度一次资源可以发送该多个侧行链路定位参考信号的测量结果，从而可以减少时延，提高侧行链路定位参考信号的测量结果的传输效率。
在一种可能的实施方式中，第一指示信息指示以下内容中的至少一项：第二终端设备的标识信息，第一侧行链路定位参考信号的资源的标识信息，或，第一侧行链路定位参考信号的指示信息。其中，第一侧行链路定位参考信号的指示信息包括：第一侧行链路定位参考信号的时域资源信息，和/或，所述第一侧行链路定位参考信号的索引值。
由于第一指示信息的实现形式有多种，因此本申请可以有多种方案用于指示出定位参考信号的测量报告应该属于哪个终端设备，如此，可以提高方案的灵活性。
在一种可能的实施方式中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，第一终端设备接收来自第二终端设备的第三消息，第三消息包括第一侧行链路定位参考信号的调度信息；所述第三消息通过单播、组播或广播的方式发送。
所述第三消息包括以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息。
如此，第一终端设备可以将第三消息携带的所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息中的至少一项作为第一指示信息，以便第二终端设备根据第一指示信息从第一消息中找到第一侧行链路定位参考信号的测量结果。而且，当第三消息通过组播广播的方式发送，多个终端设备可以接收到来自第二终端设备的由第三消息调度的第一侧行链路定位参考信号，从而可以由多个终端设备向第二终端设备反馈多个第一侧行链路定位参考信号的测量结果，从而可以提高第二终端设备的定位精度。
在一种可能的实施方式中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，第一终端设备接收来自第二终端设备的第一测量请求消息，第一测量请求消息请求对第一侧行链路定位参考信号进行测量。第一测量请求消息包括以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息。比如，第二终端设备的标识信息可以包括第二终端设备的标识、第二终端设备的标识的索引值、第二终端设备的标识的哈希值或第二终端设备对应的第一随机数中的至少一项。
如此，第一终端设备可以将第一测量请求消息携带的第二终端设备的标识信息作为第一指示信息，以便第二终端设备根据第一指示信息从第一消息中找到第一侧行链路定位参考信号的测量结果。
在一种可能的实施方式中，第一测量请求消息包括第一定位测量类型信息，第一定位测量类型信息指示第一侧行链路定位参考信号的测量结果的类型。
如此，第二终端设备可以灵活的指示第一终端设备对第一侧行链路定位参考信号的测量，从而可以提高方案的灵活性。
在一种可能的实施方式中，第一终端设备还接收来自第三终端设备的第二侧行链路定位参考信号。第一消息还包括第二信息，第二信息包括第三指示信息和第四指示信息。第三指示信息指示以下内容中的至少一项：第三终端设备的标识信息，第二侧行链路定位参考信号的资源的标识信息，或，第二侧行链路定位参考信号的指示信息。第四指示信息指示第二侧行链路定位参考信号的测量结果，第二侧行链路定位参考信号的测量结果用于确定第三终端设备的位置。
如此，第一消息中可以至少包括第一信息和第二信息等多个信息，从而可以提高侧行链路定位参考信号的传输效率。
在一种可能的实施方式中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，第一终端设备发送第二消息，第二消息包括时间信息。
在时间信息指示：第一终端设备接收侧行链路定位参考信号的时间的情况下，第一侧行链路定位参考信号到达第一终端设备的时间可以位于时间信息指示的时间内。
在时间信息指示：向第一终端设备发送侧行链路定位参考信号的时间的情况下，第一侧行链路定位参考信号的发送时间可以位于时间信息指示的时间内。
本申请中，第一终端设备可以通过广播或组播的方式发送第二消息，继而可以通知一个或多个其他的终端设备可以在哪个时间段内向第一终端设备发送侧行链路定位参考信号。也就是说，第一终端设备可以在设定的一段或多段时间段内接收来自其他终端设备的侧行链路定位参考信号。如此，第一终端设备可以不必一直处于“可接收侧行链路定位参考信号状态”，而是可以灵活的选择一段或多段时间段处于“可接收侧行链路定位参考信号状态”。第一终端设备处于“可接收侧行链路定位参考信号状态”，则第一终端设备需要持续监听来自其他终端设备的侧行链路定位参考信号。而当第一终端设备不处于“可接收侧行链路定位参考信号状态”，则第一终端设备可以不必再监听来自其他终端设备的侧行链路定位参考信号，继而可以执行其他任务。可以看出，第一终端设备通过设置可以接收侧行链路定位参考信号的时间的方式，可以使自身的工作模式更加灵活，而且也可以为第一终端设备执行其他任务提供更多的时间。
在一种可能的实施方式中，时间信息包括以下内容中的至少一项：时隙的索引值、时隙的索引值的集合、时隙集合的索引值，或时间窗的信息。如此，可以提高方案的灵活性。
时隙索引值的集合包括多个时隙索引值。时隙集合的索引值指示时隙集合，时隙集合包括一个或多个时隙。时间窗的信息包括：时间窗的长度、偏移或周期中的至少一项。
其中，时间信息还包括第一时间参考点，第一时间参考点为时隙的索引值、时隙集合的索引值或时间窗的参考点，比如第一时间参考点包括系统帧号(system frame number，SFN)#0或直接帧号(Direct Frame Number，DFN)#0。
在一种可能的实施方式中，第一终端设备发送第二消息之后，第一终端设备发送第三侧行链路定位参考信号。
在第一终端设备向其他终端设备(以第二终端设备为例)发送第三侧行链路的情况下，第二终端设备可以对第三侧行链路定位参考信号进行测量，比如可以应用RTT技术对第二终端设备进行定位，这种情况下，第二终端设备可以测量接收到第三侧行链路定位参考信号和发送第一侧行链路定位参考信号的时间差，第一终端设备可以测量发送点侧行链路定位参考信号和接收到第一侧行链路定位参考信号的时间差，该两个时间差可以基于RTT技术对第二终端设备进行定位。
在一种可能的实施方式中，第一终端设备发送第二消息之后，第一终端设备发送第三侧行链路定位参考信号之前，本申请中第一终端设备可以通过单播、组播或广播的方式发送第五消息，第五消息包括指示第三侧行链路定位参考信号的调度信息。
如此，接收到第五消息的终端设备可以根据第三侧行链路定位参考信号的调度信息接收第三侧行链路定位参考信号。当第五消息通过组播或广播方式发送时，可以由多个终端设备接收由第五消息调度的第三侧行链路定位参考信号，继而可以由多个终端设备得到第三侧行链路定位参考信号的测量结果，该多个终端设备可以依据得到的第三侧行链路定位参考信号的测量结果进行定位，可以看出，该方案可以减少第一终端设备发送的侧行链路定位参考信号的数量。
在一种可能的实施方式中，时间信息还包括时间间隔指示信息。时间间隔指示信息可以指示第一终端设备接收侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔。本申请中的时间间隔可以为时隙间隔或子帧间隔。或者，时间间隔指示信息可以指示向第一终端设备发送侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔。
在第三侧行链路定位参考信号为周期性发送的情况下，第二时间参考点包括第三侧行链路定位参考信号的一个发送周期内的时间。在第三侧行链路定位参考信号为非周期性发送的情况下，第二时间参考点包括：第三侧行链路定位参考信号的发送时间，或接收到第三侧行链路定位参考信号的时间。
由于第一终端设备可以通过第二消息携带时间信息，进而可以指示其他终端设备(以第二终端设备为例)向第一终端设备发送侧行链路定位参考信号的时间，因此第一终端设备可以将第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间设置的较近一些，也可以理解为：第一终端设备可以将第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间尽量接近。由于在侧行链路中，终端设备可能处于移动状态，因此第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间尽量接近可以尽量降低侧行链路场景中终端设备移动性的影响，同时也可以降低第一终端设备测量第一侧行链路定位参考信号的复杂度。
在一种可能的实施方式中，在第三侧行链路定位参考信号为周期性发送的情况下，第二消息还包括：第三侧行链路定位参考信号的周期信息。
如此，其他终端设备可以根据第三侧行链路定位参考信号的周期信息周期性的接收第三侧行链路定位参考信号，而且由于第三侧行链路定位参考信号周期性发送，因此其他终 端设备可以只接收一次第三侧行链路定位参考信号的周期信息，之后依据该第三侧行链路定位参考信号的周期信息可以接收多次第三侧行链路定位参考信号，从而可以节省第一终端设备向其他终端设备通知第三侧行链路定位参考信号的配置信息的次数，节省资源。
在一种可能的实施方式中，第二消息还包括第一触发状态信息，第一触发状态信息关联一个或多个侧行链路定位参考信号资源。
如此，在第二消息还包括第一触发状态信息的情况下，第一终端设备可以将自己推荐的其他终端设备发送侧行链路定位参考信号所使用的资源等相关信息通知给其他终端设备，从而使其他终端设备可以采用第一终端设备推荐的资源发送侧行链路定位参考信号。比如，第二终端设备采用第一终端设备推荐的资源发送第一侧行链路定位参考信号，第一侧行链路定位参考信号的资源为第一触发状态信息关联一个或多个侧行链路定位参考信号资源中的资源。
在一种可能的实施方式中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，第一终端设备获取第二触发状态信息；第二触发状态信息关联一个或多个侧行链路定位参考信号资源。第一触发状态信息关联的一个或多个侧行链路定位参考信号资源为第二触发状态信息关联的一个或多个侧行链路定位参考信号资源中的资源。第一触发状态信息关联的一个或多个侧行链路定位参考信号资源是网络设备指示的，或者是第一终端设备选择的。
也就是说，第一终端设备通过网络设备发送配置消息或通过预配置的方式获取到第二触发状态信息后，可以根据第二触发状态信息生成第一触发状态信息，并向其他终端设备发送第一触发状态信息。也就是说，第一终端设备向其他终端设备推荐的其他终端设备在发送侧行链路定位参考信号时所使用的资源可以为第二触发状态信息关联的资源中的资源。
第二方面，本申请提供一种定位信息传输方法，该方法可以由第二终端设备执行，或者由第二终端设备内部的模块、单元、芯片执行。第二终端设备发送第一侧行链路定位参考信号，接收第一消息。第一消息通过广播或组播方式发送，第一消息包括第一信息，第一信息包括第一指示信息和第二指示信息。
第一信息中的第二指示信息指示侧行链路定位参考信号的测量结果，第一信息中的第一指示信息用于指示该第二指示信息指示的测量结果为第一侧行链路定位参考信号的测量结果，如此，第二终端设备可以在组播或广播发送的第一消息中找到第一侧行链路定位参考信号的测量报告。
由于第一消息是通过广播或组播方式发送的，因此可以提高侧行链路定位参考信号的测量结果的传输效率。相关内容和有益效果可以参见第一方面的相关描述，在此不再赘述。
在一种可能的实施方式中，第一指示信息指示以下内容中的至少一项：第二终端设备的标识信息，第一侧行链路定位参考信号的资源的标识信息，或，第一侧行链路定位参考信号的指示信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，第二终端设备向第一终端设备发送第三消息，第三消息包括第一侧行链路定位参考信号的调度信息；所述第三消息通过单播、组播或广播的方式发送。所述第三消息包括以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备的标识信息可以包括第二终端设备的标识、第二终端设备的标识的索引值、第二终端设备的标识的哈希值或第二终端设备对应的第一随机数中的至少一项。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备发送第一侧行链路定位参考信号之前，第二终端设备向第一终端设备发送第一测量请求消息，第一测量请求消息请求对第一侧行链路定位参考信号进行测量。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一测量请求消息包括以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一测量请求消息包括第一定位测量类型信息，第一定位测量类型信息指示第一侧行链路定位参考信号的测量结果的类型。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一侧行链路定位参考信号的指示信息包括：第一侧行链路定位参考信号的时域资源信息，和/或所述第一侧行链路定位参考信号的索引值。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备发送第一侧行链路定位参考信号之前，第二终端设备接收来自第一终端设备的第二消息，第二消息包括时间信息。其中，时间信息指示：第一终端设备接收侧行链路定位参考信号的时间，和/或，向第一终端设备发送侧行链路定位参考信号的时间。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一侧行链路定位参考信号到达第一终端设备的时间位于时间信息指示的时间内；和/或，第一侧行链路定位参考信号的发送时间位于时间信息指示的时间内。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，时间信息包括以下内容中的至少一项：时隙的索引值；时隙的索引值的集合，时隙索引值的集合包括多个时隙索引值；时隙集合的索引值，时隙集合的索引值指示时隙集合，时隙集合包括一个或多个时隙；或，时间窗的信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，时间信息还包括第一时间参考点，第一时间参考点为时隙的索引值、时隙集合的索引值或时间窗的参考点。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一时间参考点包括以下内容中的至少一项：SFN#0；DFN#0。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，时间窗的信息包括：时间窗的长度、偏移或周期中的至少一项。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备接收来自第一终端设备的第二消息之后，还包括：
第二终端设备接收来自第一终端设备的第三侧行链路定位参考信号。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备接收来自第一终端设备的第二消息之后，第二终端设备接收来自第一终端设备的第三侧行链路定位参考信号之前，还包括：
第二终端设备接收第五消息，第五消息包括指示第三侧行链路定位参考信号的调度信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，时间信息还包括：时间间隔指示信息。时间间隔指示信息指示以下内容中的一项：第一终端设备接收侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔；或，向第一终端设备发送侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，在第三侧行链路定位参考信号为周期性发送的情况下，第二时间参考点包括第三侧行链路定位参考信号的一个发送周期内的时间。在一种可能的实施方式中，在第三侧行链路定位参考信号为非周期性发送的情况下，第二时间参考点包括：第三侧行链路定位参考信号的发送时间，或接收到第三侧行链路定位参考信号的时间。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，在第三侧行链路定位参考信号为周期性发送的情况下，第二消息还包括：第三侧行链路定位参考信号的周期信息。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二消息还包括第一触发状态信息，第一触发状态信息关联一个或多个侧行链路定位参考信号资源。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一侧行链路定位参考信号的资源为第一触发状态信息关联一个或多个侧行链路定位参考信号资源中的资源。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二终端设备发送第一侧行链路定位参考信号之前，第二终端设备获取第二触发状态信息；第二触发状态信息关联一个或多个侧行链路定位参考信号资源。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第一触发状态信息关联的一个或多个侧行链路定位参考信号资源为第二触发状态信息关联的一个或多个侧行链路定位参考信号资源中的资源。第一触发状态信息关联的一个或多个侧行链路定位参考信号资源是网络设备指示的，或者是第一终端设备选择的。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
在一种可能的实施方式中，第二消息是通过广播或组播方式发送的。
相关内容和有益效果可以参见第一方面相关实施方式的描述，在此不再赘述。
第三方面，提供了一种通信装置，该通信装置可以为上述第一终端设备或第二终端设备，该通信装置可以包括通信单元和处理单元，以执行上述第一方面至第二方面任一种方法中的任一种实施方式。通信单元用于执行与发送和接收相关的功能。可选地，通信单元包括接收单元和发送单元。在一种设计中，通信装置为通信芯片，处理单元可以时一个或多个处理器或处理器核心，通信单元可以为通信芯片的输入输出电路或者端口。
在另一种设计中，通信单元可以为发射器和接收器，或者通信单元为发射机和接收机。
可选的，通信装置还包括可用于执行上述第一方面至第二方面任一种方法中的任一种实施方式的各个模块。
第四方面，提供了一种通信装置，该通信装置可以为上述第一终端设备或第二终端设备，该通信装置可以包括处理器和存储器。可选的，还包括收发器，该存储器用于存储计算机程序或指令，该处理器用于从存储器中调用并运行该计算机程序或指令，当处理器执行存储器中的计算机程序或指令时，使得该通信装置执行上述第一方面至第二方面任一种方法中的任一种实施方式。
可选的，处理器为一个或多个，存储器为一个或多个。
可选的，存储器可以与处理器集成在一起，或者存储器与处理器分离设置。
可选的，收发器中可以包括，发射机(发射器)和接收机(接收器)。
第五方面，提供了一种通信装置，该通信装置可以为上述第一终端设备或第二终端设备，该通信装置可以包括处理器。该处理器与存储器耦合，可用于执行第一方面至第二方面任一方面，以及第一方面至第二方面中任一种可能实现方式中的方法。可选地，该通信装置还包括存储器。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该通信装置为无线通信设备时，通信接口可以是收发器，或，输入/输出接口。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在又一种实现方式中，当该通信装置为芯片或芯片系统时，通信接口可以是该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。处理器也可以体现为处理电路或逻辑电路。
第六方面，提供了一种系统，系统包括上述第一终端设备和一个或多个第二终端设备，还可以包括一个或多个第三终端设备。
第七方面，提供了一种计算机程序产品，计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当计算机程序被运行时，使得计算机执行上述第一方面中任一种可能实现方式中的方法，或者使得计算机执行上述第一方面至第二方面任一种实现方式中的方法。
第八方面，提供了一种计算机可读存储介质，计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面中任一种可能实现方式中的方法，或者使得计算机执行上述第一方面至第二方面任一种实现方式中的方法。
第九方面，提供了一种芯片系统，该芯片系统可以包括处理器。该处理器与存储器耦合，可用于执行第一方面至第二方面中任一方面，以及第一方面至第二方面中任一方面中任一种可能实现方式中的方法。可选地，该芯片系统还包括存储器。存储器，用于存储计算机程序(也可以称为代码，或指令)。处理器，用于从存储器调用并运行计算机程序，使得安装有芯片系统的设备执行第一方面至第二方面中任一方面，以及第一方面至第二方面中任一方面中任一种可能实现方式中的方法。
第十方面，提供了一种通信装置，该通信装置可以为上述第一终端设备或第二终端设备，该通信装置可以包括：接口电路和处理电路。接口电路可以包括输入电路和输出电路。处理电路用于通过输入电路接收信号，并通过输出电路发射信号，使得第一方面至第二方面任一方面，以及第一方面至第二方面中任一种可能实现方式中的方法被实现。
在具体实现过程中，上述处理装置可以为芯片，输入电路可以为输入管脚，输出电路 可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请对处理器及各种电路的具体实现方式不做限定。
在一种实现方式中，当通信装置是无线通信设备，其中，无线通信设备可以是诸如智能手机这样的终端，也可以是诸如基站这样的无线接入网设备。接口电路可以为无线通信设备中的射频处理芯片，处理电路可以为无线通信设备中的基带处理芯片。
在又一种实现方式中，通信装置可以是无线通信设备中的部分器件，如系统芯片或通信芯片等集成电路产品。接口电路可以为该芯片或芯片系统上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。处理电路可以为该芯片上的逻辑电路。
附图说明
图1为本申请实施例适用的几种可能的系统架构示意图；
图2为本申请实施例适用的一种可能的网络架构示意图；
图3为SL信道状态信息(channel state information，CSI)的触发流程的一种可能的示意图；
图4为本申请实施例提供的一种可能的定位信息传输方法的流程示意图；
图5为本申请实施例提供的又一种可能的定位信息传输方法的流程示意图；
图6为本申请实施例提供的又一种可能的定位信息传输方法的流程示意图；
图7为本申请实施例提供的又一种可能的定位信息传输方法的流程示意图；
图8为本申请实施例提供的又一种可能的定位信息传输方法的流程示意图；
图9为本申请实施例提供的又一种可能的定位信息传输方法的流程示意图；
图10为本申请实施例提供的一种可能的通信装置的结构示意图；
图11为本申请实施例提供的又一种可能的通信装置的结构示意图；
图12为本申请实施例提供的又一种可能的通信装置的结构示意图。
具体实施方式
下面将结合附图对本申请实施例提供的方案进行介绍。在介绍之前，先对本申请实施例涉及到的术语或名词进行解释。
(1)定位参考信号。
本申请实施例中的侧行链路定位参考信号，可以理解为可以用于定位的，且在终端设备之间进行传输的信号，或者也可以理解为用于定位的在终端设备的侧行链路之间传输的信号。
本申请实施例涉及多个侧行链路定位参考信号，比如第一侧行链路定位参考信号、第二侧行链路定位参考信号和第三侧行链路定位参考信号等侧行链路定位参考信号，其中“第一”、“第二”和“第三”仅仅用于区分各个侧行链路定位参考信号，不具有其他限定意义。
本申请实施例中的定位参考信号可以为用于侧行的定位参考信号(positioning reference signal，PRS)，也可以为探测参考信号(sounding reference signal，SRS)，还可以是信道状 态信息参考信号(channel state information reference signal，CSI-RS)、解调参考信号(demodulation reference signal，DMRS)、相位跟踪参考信号(phase-tracking reference signals，PTRS)、侧行同步信号/物理层侧行广播信道块(Sidelink Synchronization signal/physical sidelink broadcast channel block，S-SS/PSBCH block)。
(2)定位技术。
本申请实施例适用于多种定位技术，比如基于离开角、到达角或到达时间等进行定位。下面列举几种本申请实施例适用的定位技术：
(2.1)离开角(angle of departure，AOD)。
离开角可以指示出两个装置之间传输电磁波时，从发送电磁波的装置处观测的电磁波离开方向。离开角可以用于进行对装置进行定位。
离开角也可以有不同的名称，比如离开角还可以称为下行链路离开角(downlink angle of departure，DAOD/DL-AOD)。
以基于网络设备向终端设备发送的信号确定终端设备的位置为例，进行举例说明，该示例中离开角可以称为DL-AOD：多个网络设备可以向终端设备发送可以用于定位的信号(比如定位参考信号(positioning reference signal，PRS))，终端设备对接收到的多个用于定位的信号分别进行测量，得到多个用于定位的信号的测量结果，用于定位的信号的测量结果比如可以包括参考信号接收功率(reference signal receiving power，RSRP)。进一步，位置管理装置或网络设备可以基于多个RSRP确定出多个离开角。该多个离开角可以用于确定终端设备的位置信息。本申请实施例中的位置管理装置可以为UE、LMF或LMC。
(2.2)到达角(angle of arrival，AOA)。
到达角可以指示出两个装置之间传输电磁波时，从接收电磁波的装置处观测的电磁波到达方向。到达角可以用于进行对装置进行定位。
到达角也可以有不同的名称，比如到达角也可以称为上行链路到达角(uplink angle of arrival，UAOA/UL-AOA)。
以基于终端设备向网络设备发送信号确定终端设备的位置为例，进行举例说明，该示例中到达角可以称为UL-AOA：终端设备向多个网络设备分别发送可以用于定位的信号(比如探测参考信号(sounding reference signal，SRS))，多个网络设备对接收到的用于定位的信号分别进行测量，得到多个用于定位的信号的测量结果，用于定位的信号的测量结果比如可以包括AOA和/或RSRP。进一步，位置管理装置可以基于多个用于定位的信号的测量结果确定终端设备的位置信息。
(2.3)基于到达时间的定位技术。
基于到达时间的定位技术可以包括到达时间差(time difference of arrival，TDOA)和RTT。
TDOA为装置之间传输信号的传输时间差。TDOA可以用于进行对装置进行定位。
按照测量对象的不同，有下行TDOA(downlink time difference of arrival，DL-TDOA)、上行TDOA(uplink time difference of arrival，UL-TDOA)。在一些实施例中，DL-TDOA也可称为观察到达时间差(observed time difference of arrival，OTDOA)，UL-TDOA也可称为UTDOA。
以基于终端设备和网络设备之间传输信号确定终端设备的位置为例，进行举例说明：终端设备向网络设备发送可以用于定位的信号(比如SRS)，网络设备向终端设备发送可 以用于定位的信号(比如PRS)，终端设备确定接收到的用于定位的信号(比如PRS)对应的测量结果。终端设备确定出的用于定位的信号(比如PRS)对应的测量结果比如包括：终端设备发出的用于定位的信号(比如SRS)与接收到的用于定位的信号(比如PRS)之间的时间差，该时间差可以称为UE Rx–Tx time difference。终端设备确定出的用于定位的信号(比如PRS)对应的测量结果也还可以包括接收到的用于定位的信号(比如PRS)的RSRP、下行参考信号时间差(Downlink reference signal time difference，DL RSTD)。
网络设备也确定接收到的用于定位的信号(比如SRS)对应的测量结果。网络设备确定出的用于定位的信号(比如SRS)对应的测量结果比如包括：网络设备接收到的用于定位的信号(比如SRS)与发送出的用于定位的信号(比如PRS)之间的时间差，该时间差可以称为gNB Rx–Tx time difference。网络设备确定出的用于定位的信号(比如SRS)对应的测量结果还可以包括接收到的用于定位的信号(例如SRS)的RSRP、上行相对到达时间(Uplink relative time of arrival，UL RTOA)。
进一步，UE Rx–Tx time difference和gNB Rx–Tx time difference可以计算出终端设备和网络设备之间的往返时延(round trip time，RTT)和/或距离，进而基于RTT和/或距离确定出终端设备的位置。
本申请实施例提供的方案基于终端设备之间传输侧行链路信号以确定终端设备的位置。当采用基于到达时间的定位技术时，本申请实施例中第一终端设备接收到第二终端设备发送的用于定位的信号(比如SL PRS)，第一终端设备对接收到的信号进行测量，该信号的测量结果可以包括该信道的到达时间。又一种可能的实施方式中，第一终端设备对该信号进行测量得到的测量结果可以包括该信号的RSRP。
当采用RTT技术，则需要第二终端设备侧向第一终端设备发送SL PRS，且第一终端设备也向第二终端设备发送SL PRS。第一终端设备侧和第二终端设备侧可以分别计算两个SL PRS的收发之间的时间差，继而基于该两个时间差计算第一终端设备侧和第二终端设备侧之间的距离信息。
(3)触发状态(triggering state)，与侧行链路定位参考信号的资源关联，指用于触发所关联的侧行链路定位参考信号资源的字段或者比特。
(4)定位测量上报类型，指依赖于侧行链路定位参考信号测量获取到的信息类型，如接收-发送时间差，接收-发送频率差或者侧行链路TDOA等。
(5)侧行链路定位参考信号资源，指用于发送侧行链路定位参考信号的资源。应理解，本申请实施例中发送侧行链路定位参考信号也可以用发送侧行链路定位参考信号资源代替，可以理解为在侧行链路定位参考信号资源上发送侧行链路定位参考信号。
(6)单播、组播和广播。
单播：是指目的地址为单一目标的一种传输方式，属于一对一的通信。比如，发送端和接收端之间通过单播方式通信，发送端发出的消息中的目的地址为接收端的地址。
组播(multicast)：也可以叫多播、多点广播或群播，属于一对多的通信。组播可以指信息同时传递给一组装置的通信。比如，一个发送端(该发送端也可以称为组播源)与多个接收端之间可以通过组播方式通信，发送端发出的组播的消息中的目的地址可以为组播地址，一个组播地址可以为一组装置的地址，该一组装置可以包括多个接收端。
广播(broadcast)：可以理解为一对所有的通信，也包括无指定接收端的传输方法。
本申请实施例提供一种方案，该方案中第一终端设备可以接收来自第二终端设备第一侧行链路定位参考信号，之后第一终端设备可以通过广播或组播的方式向第二终端设备发送第一侧行链路定位参考信号的测量结果。该测量结果可以用于对第二终端设备进行定位。可以看出，基于本申请实施例提供的方案，可以基于侧行链路传输侧行链路定位参考信号以及测量结果，从而为基于侧行链路对第二终端设备进行定位奠定基础。
本申请实施例提供的技术方案主要适用于无线通信系统。该无线通信系统可以遵从第三代合作伙伴计划(third generation partnership project，3GPP)的无线通信标准。比如，本申请实施例提供的方案可以应用于第四代(4th generation，4G)通信系统，例如长期演进(long term evolution，LTE)通信系统，也可以应用于第五代(5th generation，5G)通信系统，例如5G新空口(new radio，NR)通信系统，或应用于未来的各种通信系统，例如第六代(6th generation，6G)通信系统。本申请实施例提供的技术方案也可以遵从其他无线通信标准，例如电气电子工程师学会(Institute of Electrical and Electronics Engineers，IEEE)的802系列(如802.11，802.15，或者802.20)的无线通信标准。
本申请实施例提供的方法还可以应用于蓝牙系统、WiFi系统、LoRa系统或车联网(vehicle to everything，V2X)系统中。本申请实施例提供的方法还可以应用于卫星通信系统其中，卫星通信系统可以与上述通信系统相融合。
图1示例性示出了本申请实施例适用的几种可能的系统架构示意图。图1中以两个终端设备，一个网络设备为例进行说明，该通信系统中还可以包括其他更多数量的终端设备和网络设备。
图1中的(a)示出了网络设备覆盖内架构，终端设备与终端设备之间建立PC5连接，同时各个终端设备分别与网络设备(例如基站)建立连接。应当理解的是，各个终端设备可以连接同一基站也可以连接到不同基站，图1中的(a)以终端设备连接到同一基站为例示出。本申请实施例中，终端设备与基站之间可以通过Uu接口建立连接。本申请实施例提供的方案中涉及到的第一终端设备、第二终端设备以及后续提及的第三终端设备可以为图1中的(a)所示的网络设备覆盖内的终端设备。
图1中的(b)示出了网络设备部分覆盖内架构，终端设备与终端设备之间建立PC5连接，同时有部分终端设备不与网络设备(例如基站)建立连接，剩余部分终端设备与网络设备(例如基站)建立连接。本申请实施例提供的方案中涉及到的第一终端设备、第二终端设备以及后续提及的第三终端设备中的一部分(比如第一终端设备)可以为图1中的(b)所示的网络设备覆盖内的终端设备，第一终端设备、第二终端设备和第三终端设备中的另一部分(比如第二终端设备和第三终端设备)可以为图1中的(b)中的网络设备覆盖外的终端设备。
图1中的(c)示出了网络设备覆盖外架构，终端设备与终端设备之间建立PC5连接，所有终端设备均不与网络设备建立连接。本申请实施例提供的方案中涉及到的第一终端设备、第二终端设备以及后续提及的第三终端设备中的一部分可以为图1中的(c)所示的网络设备覆盖外的终端设备。
图2以5G网络架构为例，示例性示出了本申请实施例适用的一种可能的网络架构示意图。如图2所示，本申请适用的一种可能的网络架构中可以包括终端设备(比如图2所示的UE1、UE2和UE3)、接入网设备(比如，下一代(next generation，NG)无线接入网 ((radio)access network，(R)AN)设备)和核心网(core network)三部分。
(1)终端设备。
本申请实施例中，终端设备(比如图2所示的UE1、UE2或UE3)可以包括用户设备(user equipment，UE)-定位管理组件(location management component，LMC)。该UE-LMC可以是一种部署于终端设备上的具有部分LMF功能的组件或应用，用于支持PC5接口的定位业务。图2中各个终端设备中的LMC展示为虚线，用于表示该终端设备侧可以包括LMC，也可以不包括LMC，图2中以三个终端设备中均包括有LMC进行示例。
本申请实施例中图2所示的终端设备(比如图2所示的UE1、UE2或UE3)可以前述图1中所示的各个通信系统中的终端设备，比如UE1、UE2和UE3可以为图1中的(a)所示的位于网络设备覆盖范围内的三个终端设备。再比如，UE1、UE2和UE3中的一部分终端设备可以为图1中的(b)所示的位于网络设备覆盖范围内的终端设备，UE1、UE2和UE3中的另一部分终端设备可以为图1中的(b)所示的位于网络设备覆盖范围外的终端设备。再比如UE1、UE2和UE3可以为图1中的(c)所示的位于网络设备覆盖范围外的三个终端设备。
本申请实施例中的终端设备(比如图2所示的UE1、UE2或UE3，以及后续涉及到的第一终端设备、第二终端设备或第三终端设备)可以包括向用户提供语音和/或数据连通性的设备，例如可以包括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处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、车辆与其他装置的通讯(vehicle to everything，V2X)终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、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)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。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 initiation 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。终端设备还可以是平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
(2)接入网设备。
接入网(access network，AN)设备(例如基站)可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，例如，接入网设备可以包括LTE系统或高级长期 演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(the 5th generation，5G)新无线(new radio，NR)系统中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
eNB可以包括各种形式的宏基站、微基站(也称为小站)、中继站、接入点，可穿戴设备，车载设备。eNB还可以是传输接收节点(Transmission and Reception Point，TRP)。
gNB可以包括各种形式的宏基站、微基站(也称为小站)、中继站、接入点，可穿戴设备，车载设备。gNB还可以是TRP、传输测量功能(Transmission measurement function，TMF)。gNB可以包括集成于gNB上的CU和DU。
终端设备与服务基站可以通过Uu链路进行通信，比如可以通过LTE-Uu链路与Ng-eNB进行通信，可以通过NR-Uu链路与gNB进行通信。Ng-eNB是LTE的基站，gNB是NR的基站。基站间可以通过Xn接口进行通信。
(3)核心网设备。
核心网内与定位相关的网元主要包括：接入和移动管理功能(access and mobility management function，AMF)网元、位置管理功能(location management function，LMF)网元等。还可以包括演进服务移动定位中心(evolutional server mobile location center，E-SMLC)网元、统一数据管理(unified data management，UDM)网元、应用功能(application function，AF)网元。基站与AMF网元之间可以通过NG-C接口进行通信，AMF网元可以相当于gNB与LMF通信的路由器。
LMF网元可以实现对终端设备的位置估计，AMF与LMF间通过NLs接口进行通信。
本申请实施例中的位置管理装置可以是图2中的LMF或UE-LMC等，也可以是未来通信如第六代(6th generation，6G)网络中具有上述LMF或UE-LMC的功能的网元，本申请对此不限定。
在第三代合作伙伴计划(3rd generation partnership project，3GPP)版本16(Release 16，Rel-16)中引入了SL信道状态信息(channel state information，CSI)-参考信号(reference signal，RS)配置框架，以下，对SL-CSI的触发流程进行说明。
参阅图3，为SL CSI的触发流程的一种可能的示意图。如图3所示，终端设备之间的SL CSI上报只涉及两个终端设备之间的通信，为便于描述分别将两个终端设备称为UE2和UE1。其中，UE2希望获取UE1测量SL CSI-RS得到的SL CSI。触发流程可以包括如下步骤。
步骤301，UE2向UE1发送PC5无线资源控制(radio resource control，RRC)信令。
该PC5RRC信令包括SL CSI-RS的配置信息以及SL CSI的配置信息。
其中，SL CSI-RS的配置信息包括SL CSI-RS的端口数，时隙内符号索引和符号上资源块(resource block，RB)内的资源元素(resource element，RE)索引。可选的，SL CSI-RS的配置信息里不包括SL CSI-RS的时隙以及带宽。主要原因是SL CSI-RS需要在物理侧行共享信道(physical sidelink shared channel，PSSCH)包含的子信道上发送，也就是SL CSI-RS占用的时隙和带宽与PSSCH占用的时隙和带宽相同，因此可以省略配置。
另外，上述PC5RRC信令配置的SL CSI的配置信息可以包括SL CSI的时延界。其中， SL CSI的时延界用于指示SL CSI-RS的测量和SL CSI上报的时长。
步骤302a，UE2向UE1发送物理侧行控制信道(physical sidelink control channel，PSCCH)。
其中，PSCCH承载第一类型侧行链路控制信息(sidelink control information，SCI)(1st stage SCI，SCI format 1-A)，指示PSSCH的调度信息以及PSCCH预约信息。
其中，PSSCH的调度信息包括PSSCH包含的子信道的带宽，该PSSCH包含的子信道用于承载SL CSI-RS。
步骤302b，UE2向UE1发送物理侧行共享信道(physical sidelink shared channel，PSSCH)以及SL CSI-RS。
其中，PSSCH包含的子信道用于承载SL CSI-RS。PSSCH承载第二类型SCI(2nd stage SCI，SCI format 2-A/2-B)，以及SL-共享信道(shared channel，SCH)载荷。其中2nd stage SCI指示SL-SCH载荷的信息以及对SL-SCH解调的反馈指示。
同时2nd stage SCI还可以触发SL CSI-RS的接收，也就是指示UE1接收SL CSI-RS。UE1收到的2nd stage SCI中CSI请求(CSI request)字段设置为1时，UE1在PSSCH所在时隙内接收SL CSI-RS，接收带宽与1st stage SCI指示的PSSCH包含的子信道对应的带宽一样。
步骤303，UE1在SL CSI的时延界内完成SL CSI-RS测量，生成SL CSI报告。
步骤304，UE1向UE2发送PSCCH和PSSCH。
其中，PSSCH中的SL-SCH载荷携带SL CSI报告(SL CSI reporting)。具体的，SL CSI报告由SL-SCH中的媒体接入控制(media access control，MAC)控制元素(control element，CE)携带。
若将SL CSI-RS的配置方式直接迁移至SL PRS的配置方式会带来新的问题。比如，步骤304中UE1通过单播的方式向UE2发送SL CSI。但是在定位场景中，一个UE1可能会接收来自多个终端设备(比如UE2和UE3等多个终端设备)的SL PRS，UE1需要对每个接收到的SL PRS进行测量，且需要将每个SL PRS对应的测量结果返回至该SL PRS对应的终端设备。也就是说，在定位场景中，UE1可能需要向大量的终端设备返回SL PRS的测量结果。
而另一方面，由于UE1在通过单播方式向一个终端设备(比如UE2)发送一条信令之前，UE1需要先查找出可用的资源，且在一个时隙中仅可以发送一次控制信息，即在一个时隙中仅可以调度一次资源，继而通过该资源向一个终端设备发送该单播的消息。
需要查询可用的资源信息，当确定出一个资源信息之后，使用该资源向该终端设备(比如UE2)单播一条信令。
因此，若UE1采用单播的方式向多个终端设备(比如UE2和UE3等多个终端设备)分别发送测量结果，则针对每次单播，UE1均需要查询一次可用的资源信息，在一个时隙中调度一个资源进行发送。可见，UE1通过单播方式向多个终端设备发送测量结果的整体过程耗时非常长。
为了解决上述问题，本申请实施例可以提供一种定位信息传输方案，该方案中，第一终端设备可以接收来自N个终端设备的N个侧行链路定位参考信号。N为正整数。N个终端设备与N个侧行链路定位参考信号一一对应。第一终端设备对接收到的N个侧行链路定 位参考信号进行测量，得到N个侧行链路定位参考信号的测量结果。第一终端设备广播或组播发送第一消息。
第一消息可以包括N个信息，为了方便理解，N个信息也可以称为N个信息块。N个信息块中的每个信息块中包括对来自一个终端设备发送的侧行链路定位参考信号的一个或多个测量结果。N个信息块中每个信息块中还包括用于指示该信息块中包括的侧行链路定位参考信号的测量结果对应的终端设备的指示信息。本申请实施例中第一终端设备基于一个终端设备发送的侧行链路定位参考信号进行测量，得到一个侧行链路定位参考信号的测量结果，该终端设备可以称为侧行链路定位参考信号的测量结果对应的终端设备。
值得说明的是，本申请实施例中第一消息是通过广播或组播方式发送的。第一消息通过组播方式发送时，第一消息中的目的地址为组播地址。但是第一消息中包括的信息块的数量可能为一个(比如N个信息块为第一信息)，第一消息中包括的信息块的数量也可能为多个(N个信息块包括第一信息和第二信息)，本申请实施例不做限定。
相对应的，N个终端设备中的终端设备接收到第一消息，N个终端设备中的终端设备可以从第一消息中获取到该终端设备对应的信息块，继而从该信息块中获取到该终端设备发送的侧行链路定位参考信号的测量结果，继而基于该侧行链路定位参考信号的测量结果对该终端设备进行定位。
可以看出，本申请实施例中，第一终端设备可以将多个侧行链路定位参考信号的测量结果放在一个信息中，在一个时隙中通过一次控制信息调度一个资源进行发送。也就是说，本申请中第一终端设备在一个时隙调度一次资源可以发送该多个侧行链路定位参考信号的测量结果，从而可以减少时延，提高侧行链路定位参考信号的测量结果的传输效率。
本申请实施例中的N个终端设备可以为一个终端设备，也可以为多个终端设备，本申请实施例中以N个终端设备至少包括第一终端设备为例进行介绍，还以N个终端设备至少包括第一终端设备和第二终端设备为例进行介绍。当N个终端设备中包括更多终端设备时，方案与之类似，不再赘述。
下面根据图1或图2所示的内容，结合图4进行介绍。
图4示例性示出了本申请实施例提供的一种可能的定位信息传输方法的流程示意图。该方法以执行主体为第一终端设备和第二终端设备为例进行展示，实际应用中，第一终端设备侧执行的方案也可以由第一终端设备内部的单元、模块或芯片执行，第二终端设备侧执行的方案也可以由第二终端设备内部的单元、模块或芯片执行。
图4中的第一终端设备和第二终端设备可以为前述图1的各个场景中的两个终端设备，比如本申请实施例中第一终端设备和第二终端设备可以为图1中的(a)所示的位于网络设备覆盖范围内的两个终端设备。再比如，本申请实施例中第一终端设备和第二终端设备中的任一个(比如第一终端设备)可以为图1中的(b)所示的位于网络设备覆盖范围内的一个终端设备，第一终端设备和第二终端设备中的另一个(比如第二终端设备)可以为图1中的(b)所示的位于网络设备覆盖范围外的一个终端设备，第二终端设备不与网络设备建立连接，第一终端设备与网络设备建立连接。再比如，本申请实施例中第一终端设备和第二终端设备可以为图1中的(c)所示的位于网络设备覆盖范围外的两个终端设备。图4中的第一终端设备和第二终端设备可以为前述图2的UE1、UE2或UE3中的任两个终端设备。
如图4所示，该方法包括：
步骤400：第二终端设备通过单播、组播或广播方式发送第三消息。
相对应的，第一终端设备接收第三消息。
第三消息可以承载第一侧行链路定位参考信号的调度信息。第一侧行链路定位参考信号的调度信息可以包括第一侧行链路定位参考信号的资源信息，该资源信息可以包括为第一侧行链路定位参考信号分配的时域资源信息，和/或频域资源信息等。比如第三消息中可以包括用于承载第一侧行链路定位参考信号的子信道。举个例子，第三消息可以包括侧行链路控制信息(sidelink control information，SCI)，其中SCI中包括为第一侧行链路定位参考信号分配的时域资源信息，和/或频域资源信息等。接收到第三消息的终端设备可以根据第一侧行链路定位参考信号的调度信息接收第一侧行链路定位参考信号。
又一种可能的实施方式中，第三消息中还可以包括所述第一侧行链路定位参考信号的指示信息。所述第一侧行链路定位参考信号的指示信息可以包括所述第一侧行链路定位参考信号对应的索引值。举个例子，第三消息可以包括侧行链路控制信息(sidelink control information，SCI)，其中SCI中包括触发状态字段，其中触发状态字段承载的值比如可以包括侧行链路定位参考信号的索引值，第二终端设备发送的第一侧行链路定位参考信号为该侧行链路定位参考信号的索引值对应的侧行链路定位参考信号。第一终端设备接收第三消息，从第三消息中的触发状态字段确定出侧行链路定位参考信号的索引值。本申请实施例中第一终端设备和第二终端设备可以分别预配置侧行链路定位参考信号的索引值和侧行链路定位参考信号的资源信息的关联关系。从而，第一终端设备从第三消息中确定出侧行链路定位参考信号的索引值之后，可以根据侧行链路定位参考信号的索引值和侧行链路定位参考信号的资源信息的关联关系，确定出该侧行链路定位参考信号的索引值对应的资源信息，进而在该资源信息对应的资源上接收第一侧行链路定位参考信号。本申请实施例中，可以在第一终端设备和第二终端设备分别预配置侧行链路定位参考信号的标识与侧行链路定位参考信号的索引值的关联关系，从而保证第一终端设备与第二终端设备根据同一个侧行链路定位参考信号的索引值确定出同一个侧行链路定位参考信号。
又一种可能的实施方式中，第三消息可以包括SCI和侧行共享信道(sidelink shared channel，SL-SCH)(侧行共享信道)消息。其中SCI提供了SL-SCH的调度信息。SL-SCH中可以包括第一侧行链路定位参考信号的资源信息(为第一侧行链路定位参考信号分配的时域资源信息和/或频域资源信息等)，和/或所述第一侧行链路定位参考信号的索引值等。
步骤401，第二终端设备发送第一侧行链路定位参考信号。
相对应的，第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号。
一种可能的实施方式中，步骤400中的第三消息可以通过单播的方式发送，第三消息的目的地址为单播地址(在该示例中，第三消息的目的地址为第一终端设备的地址)。第三消息的预期接收方仅为第一终端设备，这种情况下，其他终端设备(除第一终端设备之外的其他终端设备)即使获取到第一侧行链路定位参考信号的调度信息，也不需要对该调度信息调度的第一侧行链路定位参考信号进行测量，该其他终端设备还可以确定出第一侧行链路定位参考信号所占用的时频资源，继而在需要使用时频资源进行侧行链路定位参考信号的发送时避开该第一侧行链路定位参考信号所占用的时频资源。
又一种可能的实施方式中，步骤400中的第三消息可以通过组播的方式发送，即第三消息的目的地址为组播地址。第三消息的接收方可以为一组终端设备。该组终端设备可以 包括一个或多个终端设备。该组终端设备包括第一终端设备，还可以包括有其他终端设备。这种情况下，该组终端设备中的一个或多个终端设备能够获取到第一侧行链路定位参考信号的调度信息，该组终端设备中的一个或多个终端设备可以根据第一侧行链路定位参考信号的调度信息接收第一侧行链路定位参考信号。
又一种可能的实施方式中，步骤400中的第三消息可以通过广播的方式发送。这种情况下，一个或多个终端设备能够获取到第一侧行链路定位参考信号的调度信息，一个或多个终端设备可以根据第一侧行链路定位参考信号的调度信息接收第一侧行链路定位参考信号。
步骤402，第一终端设备通过广播或组播方式发送第一消息。
相对应的，第二终端设备接收第一消息。
第一消息通过广播或组播方式发送。第一消息包括第一信息，第一信息包括第一指示信息和第二指示信息。
第二指示信息可以用于指示侧行链路定位参考信号的测量结果，第一指示信息可以用于指示第一信息中的该侧行链路定位参考信号的测量结果为哪个终端设备发送的侧行链路定位参考信号的测量结果。比如，第一指示信息用于指示第一信息为目标终端设备对应的信息。第二指示信息用于指示该目标终端设备发送的侧行链路定位参考信号的测量结果。
一种可能的实施方式中，第二终端设备接收到第一消息后，针对第一消息中的第一信息，第二终端设备可以根据第一信息中的第一指示信息判断出第一信息是否为第二终端设备对应的信息。
在第二终端设备根据第一指示信息确定第一信息为第二终端设备对应的信息的情况下(或在第二终端设备确定第一指示信息指示的目标终端设备为第二终端设备的情况下)，第二终端设备可以确定第一信息中的第二指示信息用于指示第二终端设备发送的第一侧行链路定位参考信号的测量结果，继而第二终端设备可以根据第二指示信息获取到第一侧行链路定位参考信号的测量结果。第一侧行链路定位参考信号的测量结果用于确定第二终端设备的位置。
再比如，在第二终端设备根据第一指示信息确定第一信息并非第二终端设备对应的信息的情况下(或在第二终端设备确定第一指示信息指示的目标终端设备并非为第二终端设备的情况下)，第二终端设备可以确定第一信息中的第二指示信息指示的侧行链路定位参考信号的测量结果并非第二终端设备发送的第一侧行链路定位参考信号的测量结果，继而第二终端设备可以丢弃第一信息。
本申请实施例以第一信息为第二终端设备对应的信息为例进行展示，这种情况下，也可以描述为：第一指示信息用于指示第一信息为第二终端设备对应的信息。第二指示信息指示第一侧行链路定位参考信号的测量结果。
本申请实施例中第一侧行链路定位参考信号的测量结果可以根据定位技术进行灵活的选择，比如第一侧行链路定位参考信号的测量结果可以包括以下内容中的一项或多项：第一侧行链路定位参考信号的信号与干扰噪声比(signal to interference plus noise ratio，SINR)、RSRP、参考信号接收质量(reference signal receiving quality，RSRQ)、相对到达时间(relative time of arrival，RTOA)、到达角(angle of arrival，AOA)，或信号传输时间差(比如TDOA或RTT技术对应的信号传输时间差)。可选的，测量结果也可以是上述多个测量结果的量化结果。
通过上述内容可以看出，本申请实施例提供的方案较为灵活，一方面，第二终端设备可以通过单播、组播或多播的方式发送第三消息。在第二终端设备通过组播或多播的方式发送第三消息的情况下，多个终端设备可以根据接收到的第三消息中的第一侧行链路定位参考信号的调度信息接收第一侧行链路定位参考信号，继而多个终端设备可以对第二终端设备发出的一个第一侧行链路定位参考信号进行测量，继而多个终端设备可以将各自得到的第一侧行链路定位参考信号的测量结果返回至第二终端设备。第二终端设备根据多个终端设备测量的第一侧行链路定位参考信号的测量结果确定第二终端设备的位置信息，从而可以进一步提高第二终端设备的定位精度。
另一方面，由于第一终端设备可以通过广播或组播的方式反馈定位参考信号的测量结果，因此可以减少第一终端设备反馈定位参考信号的测量结果的整个过程的耗时，进而可以提高终端设备定位的速度。
为了进一步说明本申请实施例带来的有益效果，结合图2举个例子，比如UE1需要向UE2和UE3分别反馈侧行链路定位参考信号的测量结果，则UE1可以基于广播或组播的方式发送一条信令。该一条信令中可以包括需向UE2反馈的侧行链路定位参考信号的测量结果，以及需向UE3反馈的侧行链路定位参考信号的测量结果。
可以看出，相比UE1通过单播的方式分别向UE2和UE3反馈侧行链路定位参考信号的测量结果的方案，本申请实施例提供的方案中，UE1只需要查询一次可用的资源信息，进而基于该查询到的资源信息发送一次信令，即可能达到传输多个侧行链路定位参考信号的测量结果的目的，进而可以减少UE1反馈侧行链路定位参考信号测量结果的整个过程的耗时，进而可以提高终端设备定位的速度。
另外，值得说明的是，由于侧行链路定位参考信号的测量结果占用的比特位数量较少，因此将适量的多个侧行链路定位参考信号的测量结果通过一条信令发送，可以不出现一条信令的比特数量过大造成分段的问题。比如，蜂窝网络无线资源控制(radio resource control，RRC)中最大一条消息长度可以为45千字节(Kilo Byte)，但是需要分5段发完。例如，当侧行链路定位参考信号的测量结果为两个侧行链路定位参考信号的收发时间差，该测量结果可能占用约40比特，将适量的多个测量结果放入一条信令，控制该信令不超过9千字节(Kilo Byte)，则该信令可以不会被分段。
本申请实施例以步骤402中的第一消息中的第一信息为第二终端设备对应的信息为例进行展示，一种可能的实施方式中，本申请实施例中第一指示信息指示以下信息a1、信息a2或信息a3中的至少一项。
信息a1：第二终端设备的标识信息。
一种可能的实施方式中，第二终端设备的标识信息可以携带在第三消息中，由第二终端设备通过述步骤400发送至第一终端设备。如此，第一终端设备可以将第三消息中携带的第二终端设备的标识信息作为第一信息中的第一指示信息。继而，当第二终端设备接收到第一消息后，在确定第一指示信息指示的终端设备的标识信息为第二终端设备的标识信息的情况下，第二终端设备可以确定第一信息中的侧行链路定位参考信号的测量结果为第二终端设备发送的第一侧行链路定位参考信号的测量结果。
又一种可能的实施方式中，第二终端设备还可以通过其他信令将第二终端设备的标识信息发送至第一终端设备，比如第一终端设备和第二终端设备在步骤400之前通过信令建 立连接，在建立连接的过程中第二终端设备可以通过交互的信令将第二终端设备的标识信息发送至第一终端设备。
又一种可能的实施方式中，可以在第一终端设备侧预配置第二终端设备的标识信息，可以为第二终端设备的标识信息设置一个指示信息(或者称为终端设备的标识信息的索引值)，当第二终端设备通过第三消息或其他信令向第一终端设备发送该指示信息，则第一终端设备可以根据该指示信息以及预配置的该指示信息与第二终端设备的标识信息的关联关系，确定出第二终端设备的标识信息，继而第一终端设备可以在第一消息中携带第二终端设备的标识信息。
本申请实施例中第二终端设备的标识信息可以包括第二终端设备的标识、第二终端设备的标识的索引值、第二终端设备的标识的哈希值或第二终端设备对应的第一随机数中的至少一项。
本申请实施例中第二终端设备对应的第一随机数可以是第二终端设备随机生成的一个随机数，第二终端设备可以通过第三消息或其他消息将该第一随机数发送给第一终端设备，进而第一终端设备可以将第一随机数作为第一指示信息携带在第一消息中，当第二终端设备确定第一信息中的第一指示信息为第一随机数，则第二终端设备可以确定第一信息中携带的测量结果为第二终端设备发送的第一侧行链路定位参考信号对应的测量结果。
其中，第二终端设备的标识可以包括以下内容中的至少一项：
第二终端设备的临时标识(temporary identification，T-ID)；
高层配置的第二终端设备的标识；
或者，高层获得的侧行链路目的标识(SL-Destination Identity)的全部或者部分比特。
该高层可以包括车辆与其他装置的通讯(vehicle to everything，V2X)层和/或近距离服务(Proximity-based services，ProSe)层等。
信息a2：第一侧行链路定位参考信号的资源的标识信息。
本申请实施例中第一侧行链路定位参考信号的资源的标识信息可以是第一侧行链路定位参考信号的资源的资源索引，例如资源索引可以为第一侧行链路参考信号的资源标识(Identity，ID)，或者第一侧行链路参考信号的资源所属的资源集的标识。该资源集中至少包括第一侧行链路参考信号的资源，还可以包括有其他侧行链路参考信号的资源。
一种可能的实施方式中，第三消息中携带的第一侧行链路参考信号的调度信息可以指示出第一侧行链路定位参考信号的资源的标识信息，如此，第一终端设备可以从第三消息中确定出第一侧行链路定位参考信号的资源的标识信息，继而可以在第一消息中携带该第一侧行链路定位参考信号的资源的标识信息。
信息a3：第一侧行链路定位参考信号的指示信息。
本申请实施例中，第一侧行链路定位参考信号的指示信息包括：第一侧行链路定位参考信号的时域资源信息，和/或所述第一侧行链路定位参考信号的索引值。
其中，第一侧行链路定位参考信号的时域资源信息可以包括第一侧行链路定位参考信号对应的时间戳信息，比如第一侧行链路定位参考信号时隙和/或子帧索引等。本申请实施例中还可以为侧行链路定位参考信号配置索引值。该侧行链路定位参考信号的索引值的相关内容可以参见前述描述，在此不再赘述。
一种可能的实施方式中，第三消息中携带的第一侧行链路参考信号的调度信息可以指示出第一侧行链路定位参考信号的指示信息，如此，第一终端设备可以从第三消息中确定出第一侧行链路定位参考信号的指示信息，继而可以在第一消息中携带该第一侧行链路定位参考信号的指示信息。
结合上述具体实施例图4，图5示例性示出本申请实施例提供的又一种可能的定位信息传输方法的流程示意图。本申请实施例提供的方案中第一终端设备可以接收来自一个或多个终端设备的侧行链路定位参考信号，继而可以将一个或多个侧行链路定位参考信号的测量结果通过一条信令通过广播或组播的方式发送。图5中以第一终端设备至少接收到来自第二终端设备的第一侧行链路定位参考信号和来自第三终端设备的第二侧行链路定位参考信号为例进行示例。
请参阅图5，在步骤402之前，还可以包括步骤500和步骤501：
步骤500：第三终端设备通过单播、组播或广播方式发送第四消息。
相对应的，第一终端设备接收第四消息。
第四消息可以承载第二侧行链路定位参考信号的调度信息。第四消息的有关描述可以参见第三消息的描述，第三终端设备发送第四消息的方式也可以参考第二终端设备发送第三消息的方式，在此不再赘述。
步骤501：第三终端设备发送第二侧行链路定位参考信号。
第二侧行链路定位参考信号的有关描述可以参见第一侧行链路定位参考信号的描述，第三终端设备发送第二侧行链路定位参考信号的方式也可以参考第二终端设备发送第一侧行链路定位参考信号的方式，在此不再赘述。
在图5所示的方案中，由于第一终端设备还接收到来自第三终端设备的第二侧行链路定位参考信号，因此在步骤402中，第一终端设备发送的第一消息可能还包括第二信息。
其中，第二信息的内容可以参见第一信息的相关描述。第二信息中也可以包括两个指示信息，为了区分，可以分别称为第三指示信息和第四指示信息。第四指示信息可以用于指示侧行链路定位参考信号的测量结果，第三指示信息可以用于指示第二信息中的该侧行链路定位参考信号的测量结果为哪个终端设备发送的侧行链路定位参考信号的测量结果。
以第二信息为第三终端设备对应的信息为例，第三指示信息用于指示第一信息为第二终端设备对应的信息。第四指示信息指示第二侧行链路定位参考信号的测量结果。第三指示信息指示以下内容中的至少一项：第三终端设备的标识信息，第二侧行链路定位参考信号的资源的标识信息，或，第二侧行链路定位参考信号的指示信息。相关内容参见第一信息的相关描述，不再赘述。
值得说明的是，步骤500和步骤501和步骤400之间没有必然的先后关系，步骤500和步骤501中的任一个步骤可以在步骤400之前，也可以在步骤400之后。步骤500和步骤501和步骤401之间没有必然的先后关系，步骤500和步骤501中的任一个步骤可以在步骤401之前，也可以在步骤401之后。
结合上述具体实施例图4和图5中任一项，图6示例性示出本申请实施例提供的又一种可能的定位信息传输方法的流程示意图。
请参阅图6，在步骤402之前，还可以包括步骤601：
步骤601：第二终端设备通过单播、组播或广播方式发送第一测量请求消息。第一测量请求消息请求对第一侧行链路定位参考信号进行测量。
相对应的，第一终端设备接收来自第二终端设备的第一测量请求消息。第一终端设备可以在接收到第一测量请求消息之后，根据第一测量请求消息对第一侧行链路定位参考信号进行测量。
一种可能的实施方式中，第一测量请求消息中还可以携带第二终端设备的标识信息。第一测量请求消息中携带的第二终端设备的标识信息可以与第三消息中携带的第二终端设备的标识信息相同，也可以不同。
本申请实施例中第一测量请求消息中携带的第二终端设备的标识信息可以包括第二终端设备的标识、第二终端设备的标识的索引值、第二终端设备的标识的哈希值或第二终端设备对应的第一随机数中的至少一项。关于第二终端设备的标识信息的描述也可以参见前述内容，在此不再赘述。
本申请实施例中，第一终端设备可以将第三消息携带的第二终端设备的标识信息作为第一指示信息，也可以将第一测量请求消息携带的第二终端设备的标识信息作为第一指示信息。
又一种可能的实施方式中，第二终端设备还可以通过第一测量请求消息携带第一侧行链路定位参考信号的资源的标识信息(信息a2)和/或第一侧行链路定位参考信号的指示信息(信息a3)等，如此，第一终端设备可以根据第一测量请求消息携带的信息生成第一指示信息。比如第一终端设备可以将第一测量请求消息携带的第一侧行链路定位参考信号的资源的标识信息(信息a2)作为第一指示信息。再比如第一终端设备可以将第一测量请求消息携带的第一侧行链路定位参考信号的指示信息(信息a3)作为第一指示信息。
本申请实施例中，第一测量请求消息中还可以携带第一定位测量类型信息，第一定位测量类型信息指示第一侧行链路定位参考信号的测量结果的类型。如此，第二终端设备可以灵活的指示第一终端设备对第一侧行链路定位参考信号的测量，从而可以提高方案的灵活性。本申请实施例中第一侧行链路定位参考信号的测量结果的类型可以包括以下内容中的一项或多项：第一侧行链路定位参考信号的SINR、RSRP、RSRQ、RTOA、AOA，或信号传输时间差(比如TDOA或RTT技术对应的信号传输时间差)。
举个例子，第一定位测量类型信息指示测量结果的类型为信号到达时间，则第一终端设备可以将用于指示第一侧行链路定位参考信号到达第一终端设备的时间的信息作为第二指示信息携带在第一信息中，以便第二终端设备根据第二指示信息获取到第一侧行链路定位参考信号到达第一终端设备的时间。
又一种可能的实施方式中，第一侧行链路定位参考信号的测量结果的类型可以是预先设置在第一终端设备侧的。例如，第一终端在出厂配置时，可以将第二终端设备对应的侧行链路定位参考信号的测量结果的类型配置在第一终端设备。如此，第一终端设备可以根据预先设置的第一侧行链路定位参考信号的测量结果的类型的信息，对第一侧行链路定位参考信号进行测量，并得到与第一侧行链路定位参考信号的测量结果的类型匹配的测量结果。
第一测量请求消息可以包含于PSSCH或SL-SCH。一种可能的实施方式中，第二终端设备可以将第一测量请求消息与第一侧行链路定位参考信号一起发送至第一终端设备，比如可以通过单个SCI调度PSSCH/SL-SCH与第一侧行链路定位参考信号。又一种可能的实 施方式中，第二终端设备可以将第一测量请求消息与第一侧行链路定位参考信号分两次SCI调度分别发送至第一终端设备。
一种可能的实施方式中，步骤601中的第一侧行链路定位参考信号可以通过单播的方式发送，第一测量请求消息的目的地址为单播地址(在该示例中，第一测量请求消息的目的地址为第一终端设备的地址)。第一测量请求消息的接收方仅为第一终端设备，这种情况下，也只有第一终端设备能够获取到第一测量请求消息，继而也只有第一终端设备可以根据第一测量请求消息的请求对第一侧行链路定位参考信号进行测量。
又一种可能的实施方式中，步骤601中的第一测量请求消息可以通过组播的方式发送，即第一测量请求消息的目的地址为组播地址。第一测量请求消息的接收方可以为一组终端设备。该组终端设备可以包括一个或多个终端设备。该组终端设备包括第一终端设备，还可以包括有其他终端设备。这种情况下，该组终端设备中的一个或多个终端设备能够获取到第一测量请求消息，该组终端设备中的一个或多个终端设备可以根据第一测量请求消息的请求对第一侧行链路定位参考信号进行测量。
又一种可能的实施方式中，步骤601中的第一测量请求消息可以通过广播的方式发送。这种情况下，一个或多个终端设备能够获取到第一测量请求消息，一个或多个终端设备可以根据第一测量请求消息的请求对第一侧行链路定位参考信号进行测量。
本申请实施例中，第三消息和第一测量请求消息的发送方式可以是匹配的。比如第三消息为单播，则第一测量请求消息也可以是单播。再比如，第三消息为组播，第一测量请求消息也可以是组播。再比如，第三消息为广播，第一测量请求消息也可以是广播。又一种可能的实施方式中，第三消息和第一测量请求消息的发送方式可以是不匹配的。比如第一测量请求消息为广播的，第三消息为组播或单播，这种情况下，同时接收到第一测量请求消息和第三消息的终端设备可以对第一侧行链路定位参考信号进行测量。
值得说明的是，本申请实施例中步骤601可以与步骤401同时执行，比如通过一条信令发送第一测量请求消息和第一侧行链路定位参考信号。或者，步骤601在步骤401之前执行。图6中以步骤601在步骤500之前且在步骤400之后进行示例，在实际应用中步骤601与步骤400、步骤500、步骤602以及步骤501中的任一个均没有绝对的先后关系，比如步骤601可以在步骤500之后执行，也可以在步骤400之前执行。
图6中，在步骤402之前，还可以包括步骤602：
步骤602：第三终端设备通过单播、组播或广播方式发送第二测量请求消息。第二测量请求消息请求对第二侧行链路定位参考信号进行测量。
相对应的，第一终端设备接收来自第三终端设备的第二测量请求消息。第一终端设备可以在接收到第二测量请求消息之后，根据第二测量请求消息对第二侧行链路定位参考信号进行测量。
第三终端设备发送第二测量请求消息的有关内容与第二终端设备发送第一测量请求消息的相关内容类似，可以互相参考，不再赘述。值得说明的是，图6是在图5的基础上提供的又一种定位信息传输方法的流程示意图，图6所提供的方案也可以与前述图4结合，这种情况下，图6中的步骤500、步骤602和步骤501从图6中去除即可。
通过图6所示的方案可以看出，第二终端设备还可以通过发送第一测量请求消息请求第一终端设备对第一侧行链路定位参考信号进行测量，进一步还可以通过第一测量请求消息携带第一侧行链路定位参考信号的测量结果的类型等信息，如此，第二终端设备可以更 加灵活的选择第一侧行链路定位参考信号的测量结果的类型，从而可以提高方案的灵活性。
结合上述具体实施例图4、图5和图6中任一项，图7示例性示出本申请实施例提供的又一种可能的定位信息传输方法的流程示意图。
请参阅图7，在步骤401之前，还可以包括步骤701：
步骤701：第一终端设备发送第二消息。
相对应的，第二终端设备接收来自第一终端设备的第二消息。
第一终端设备可以通过单播、组播或广播的方式发送第二消息，图7中以第一终端设备通过组播或广播方式发送第二消息为例进行展示。相比第一终端设备通过单播发送第二消息的方式，第一终端设备通过组播或广播的方式发送第二消息，可以减少信令数量，节省资源。
第二消息可以包括信息b1：时间信息。
信息b1：时间信息。
其中，时间信息指示：第一终端设备接收侧行链路定位参考信号的时间，和/或，向第一终端设备发送侧行链路定位参考信号的时间。
在时间信息指示：第一终端设备接收侧行链路定位参考信号的时间的情况下，第一侧行链路定位参考信号到达第一终端设备的时间可以位于时间信息指示的时间内。
在时间信息指示：向第一终端设备发送侧行链路定位参考信号的时间的情况下，第一侧行链路定位参考信号的发送时间可以位于时间信息指示的时间内。
本申请实施例中，第一终端设备可以通过广播或组播的方式发送时间信息，继而可以通知一个或多个其他的终端设备可以在哪个时间段内向第一终端设备发送侧行链路定位参考信号。也就是说，第一终端设备可以在设定的一段或多段时间段内接收来自其他终端设备的侧行链路定位参考信号。如此，第一终端设备可以不必一直处于“可接收侧行链路定位参考信号状态”，而是可以灵活的选择一段或多段时间段处于“可接收侧行链路定位参考信号状态”。第一终端设备处于“可接收侧行链路定位参考信号状态”，则第一终端设备需要持续监听来自其他终端设备的侧行链路定位参考信号。而当第一终端设备不处于“可接收侧行链路定位参考信号状态”，则第一终端设备可以不必再监听来自其他终端设备的侧行链路定位参考信号，继而可以执行其他任务。可以看出，第一终端设备通过设置可以接收侧行链路定位参考信号的时间的方式，可以使自身的工作模式更加灵活，降低第一终端设备检测侧行链路定位参考信号的复杂度，而且也可以为第一终端设备执行其他任务提供更多的时间。
又一种可能的实施方式中，由于第二终端设备可以通过组播或广播方式发送第三消息，当第二终端设备需要多个其他终端设备对第一侧行链路定位参考信号进行测量时，第二终端设备发送第一侧行链路定位参考信号的时间需要与该多个其他终端设备允许发送侧行链路定位参考信号的时间匹配。
举个例子，第一终端设备指示其他终端设备可以在8点至9点的时间段内发送侧行链路定位参考信号，第四终端设备指示其他终端设备可以在8点30分至9点30分的时间段内发送侧行链路定位参考信号。第一终端设备若需要第一终端设备和第四终端设备分别对第一侧行链路定位参考信号进行测量，则第一终端设备可以在8点30分至9点的时间段内发送第一侧行链路定位参考信号。
信息b1中的时间信息包括以下信息b1-1、信息b1-2、信息b1-3或信息b1-4中的至少一项。
信息b1-1：时隙的索引值。
时隙的索引值可以为时隙号(也可以称为时隙编号)。
时间信息还包括第一时间参考点，第一时间参考点可以为时隙的索引值的参考点，第一时间参考点可以为系统帧号(system frame number，SFN)#0或直接帧号(Direct Frame Number，DFN)#0。直接帧号是以1900年1月1日00点作为起点的定时系统，一个DFN长度为10ms，在此基础上也可以增加一定毫秒(millisecond，ms)的偏置。
举个例子，第一时间参考点为SFN#0，时间信息为时隙的索引值#003。第二终端设备可以根据时间信息确定第一终端设备推荐第二终端设备发送第一侧行链路定位参考信号所使用的时隙为从SFN#0起始，时隙的索引值为#003的时隙。
再举个例子，第一终端设备通知时隙号为30千赫兹(kilo hertz，kHz)间隔的时隙(slot)4，则第二消息中的时间信息可以是指某个10ms内第5个0.5ms的时隙内的时间。比如第一终端设备可以通过第二消息指示第二终端设备在该某个10ms内第5个0.5ms的时隙内发送侧行链路定位参考信号，或者第一终端设备可以通过第二消息指示第一终端设备在该某个10ms内第5个0.5ms的时隙内可以接收其他终端设备的侧行链路定位参考信号。
再举个例子，第一终端设备通知时隙号为60kHz子间隔的时隙(slot)8，则第二消息中的时间信息可以是指某个10ms内第9个0.25ms的时隙内的时间。比如第一终端设备可以通过第二消息指示第二终端设备在该某个10ms内第9个0.25ms的时隙内发送侧行链路定位参考信号，或者第一终端设备可以通过第二消息指示第一终端设备在该某个10ms内第9个0.25ms的时隙内可以接收其他终端设备的侧行链路定位参考信号。
本申请实施例中提及的时隙号可以是绝对的时隙号，也可以是逻辑的时隙号。举个例子，比如用于侧行链路传输的物理时隙的绝对的时隙号分别为：1，2，6，7等。则可以对用于侧行链路传输的物理时隙重新编号，得到的编号可以称为逻辑编号，比如时隙1(绝对的时隙号为1)的逻辑时隙号为0；时隙2(绝对的时隙号为2)的逻辑时隙号为1；时隙6(绝对的时隙号为6)的逻辑时隙号为2；时隙7(绝对的时隙号为7)的逻辑时隙号为3。
信息b1-2：时隙的索引值的集合。
时间信息可以以时隙索引值的集合的形式出现，一个时隙索引值的集合可以包括一个或多个时隙索引值。
时间信息还包括第一时间参考点，第一时间参考点可以为时隙的索引值的集合中的索引值的参考点，第一时间参考点可以为SFN#0或DFN#0。
举个例子，第一时间参考点为SFN#0。时间信息为时隙的索引值的集合，为时隙的索引值#003和时隙的索引值#004。第二终端设备可以根据时间信息确定第一终端设备推荐第二终端设备发送第一侧行链路定位参考信号所使用的时隙为从SFN#0起始，时隙索引值为#003和#004的时隙。
信息b1-3：时隙集合的索引值，时隙集合的索引值指示时隙集合，时隙集合包括一个或多个时隙。
时间信息可以为时隙集合的索引值。时隙集合的索引值可以用于指示时隙集合。一个时隙集合可以包括一个或多个时隙。
时隙集合的索引值与时隙的对应关系可以通过预配置的方式配置在第二终端设备，或者由其他装置发送至第二终端设备，以便第二终端设备根据时隙集合的索引值确定出第一终端设备推荐第二终端设备在发送第一侧行链路定位参考信号所使用的时隙。
时间信息还包括第一时间参考点，第一时间参考点可以为时隙集合的索引值的参考点，第一时间参考点可以为SFN#0或DFN#0。
举个例子，第一时间参考点为SFN#0。时间信息为时隙集合的索引值#001，时隙集合的索引值#001关联索引值为#003和#004的两个时隙。第二终端设备可以根据时间信息确定第一终端设备推荐第二终端设备发送第一侧行链路定位参考信号所使用的时隙为从SFN#0起始，时隙索引值为#003和#004的时隙。
信息b1-4：时间窗的信息。
时间窗的信息可以包括时间窗的长度、时间窗的偏移或时间窗的周期中的至少一项。
时间窗的起始对应一个时隙索引，以及系统帧索引或毫秒偏移，该时间窗的长度对应若干时隙、若干系统帧或若干毫秒，该时间窗的周期对应若干时隙、若干系统帧或若干毫秒。比如，时间窗的起始为SFN#1+5ms，时间窗的长度为6ms，时间窗的周期为2SFN/20ms，那么该时间窗包括：SFN#1+5ms至SFN#2+1ms，SFN#3+5ms至SFN#4+1ms，SFN#5+5ms至SFN#6+1ms等。
时间信息还包括第一时间参考点，第一时间参考点可以为时间窗的信息的参考点，第一时间参考点可以为SFN#0或DFN#0。
举个例子，第一时间参考点为SFN#0。时间信息为时间窗的信息，时间窗的信息包括时间窗的长度、时间窗的偏移或时间窗的周期。第二终端设备可以根据时间信息确定第一终端设备推荐第二终端设备发送第一侧行链路定位参考信号所使用的时隙。其中，时间窗的偏移可以指示第一时间参考点与时间窗(比如时间窗的第一个时隙)之间的时隙或子帧间隔。
请继续参与图7，一种可能的实施方式中，第二消息还可以包括信息b2：第一触发状态信息。
信息b2：第一触发状态信息。第一触发状态信息关联一个或多个侧行链路定位参考信号资源。
本申请实施例中的侧行链路定位参考信号资源可以理解为用于传输侧行链路定位参考信号的时频资源，或者也可以理解为侧行链路定位参考信号的配置信息。第一触发状态信息用于第二终端设备确定调度第一侧行链路定位参考信号时设置的SCI中触发状态字段的数值。
第一侧行链路定位参考信号的资源为第一触发状态信息关联一个或多个侧行链路定位参考信号资源中的资源。
在一种可能的实现方式中，可以设置一种触发状态关联表，该触发状态关联表可以包括第一触发状态信息与第一触发状态信息关联的资源的对应关系。以下，结合表1对触发状态关联表进行详细介绍。
表1：一种触发状态关联表的示例
由表1可见，在第一触发状态信息为00时，可以认为第一触发状态信息未触发任一侧行链路定位参考信号资源，或者可以认为第一触发状态信息“00”未关联任一侧行链路定位参考信号资源。在第一触发状态信息为01时，可以认为侧行链路定位参考信号资源#0被触发，或者说第一触发状态信息“01”与侧行链路定位参考信号资源#0关联。在第一触发状态信息为“01”时，第二终端设备可以选择侧行链路定位参考信号资源#0作为第一侧行链路定位参考信号的资源。
需要说明的是，本申请实施例中第一终端设备可以通过第二消息发送第一触发状态信息，第二终端设备可以选择第一触发状态信息关联的资源传输第一侧行链路定位参考信号，也可以不选择第一触发状态信息关联的资源传输第一侧行链路定位参考信号。也就是说，第一终端设备可以通过第二消息向其他终端设备推荐侧行链路定位参考信号所使用的资源，其他终端设备可以采用第一终端设备推荐的资源传输侧行链路定位参考信号，也可以不采用第一终端设备推荐的资源传输侧行链路定位参考信号。本申请实施例不做限制。
需要说明的是，表1并不构成对触发状态关联表的限制，表1中的第一触发状态信息以2bit为例，实际上第一触发状态信息可以通过更多的比特表示，如3bit、4bit或者5bit等。在第一触发状态信息所采用的比特数目越大时，可以指示的第一触发状态信息的数量就越多。例如，在第一触发状态信息所采用的比特数目为2时，可以指示4个第一触发状态信息，在第一触发状态信息所采用的比特数目为3时，可以指示8个第一触发状态信息。
又一种可能的实施方式中，第一触发状态信息还可以关联以下内容中的一项或多项：侧行链路定位参考信号所使用的频点信息、侧行链路定位参考信号对应的带宽部分(bandwidth part，BWP)信息，或第一触发状态信息关联一个或多个侧行链路定位参考信号资源对应的资源池信息。
又一种可能的实施方式中，第一触发状态信息可以关联上述信息b1的时间信息。这种情况下，也可以理解为：第一触发状态信息用于指示上述信息b1中的时间信息；或者也可以理解为：第一触发状态信息包括上述信息b1中的时间信息。第二终端设备根据第一触发状态信息可以确定出时间信息。
通过上述内容更可以看出，在第二消息还包括第一触发状态信息的情况下，第一终端设备可以将自己推荐的其他终端设备发送侧行链路定位参考信号所使用的资源等相关信息通知给其他终端设备，从而使其他终端设备可以采用第一终端设备推荐的资源发送侧行链路定位参考信号。比如第一终端设备可以推荐未被占用的或信道条件较好的侧行链路的资源，从而当其他终端设备在使用推荐的资源传输侧行链路定位参考信号时，可以降低侧行链路定位参考信号受到的干扰。
值得说明的是，图7给出的实施例是结合上述图6的实施例进行展示，图7示出的实 施例也可以与前述图4或图5相结合，这种情况下，可以在图4或图5所示的方案中，在步骤401或步骤501之前还包括有步骤701。
结合上述具体实施例图4、图5、图6和图7中任一项，图8示例性示出本申请实施例提供的又一种可能的定位信息传输方法的流程示意图。
请参阅图8，该方法还包括步骤801和步骤802：
步骤801：第一终端设备发送第五消息。
本申请实施例中第一终端设备可以通过单播、组播或广播的方式发送第五消息，图8中以第一终端设备通过组播或广播的方式发送第五消息，且第二终端设备和第三终端设备接收到第五消息为例进行展示。
第五消息可以承载第三侧行链路定位参考信号的调度信息。第三侧行链路定位参考信号的调度信息可以包括第三侧行链路定位参考信号的资源信息，该资源信息可以包括为第三侧行链路定位参考信号分配的时域资源信息，和/或频域资源信息等。比如第五消息中可以包括用于承载第三侧行链路定位参考信号的子信道。举个例子，第五消息可以包括侧行链路控制信息(sidelink control information，SCI)，其中SCI中包括为第三侧行链路定位参考信号分配的时域资源信息，和/或频域资源信息等。接收到第五消息的终端设备可以根据第三侧行链路定位参考信号的调度信息接收第三侧行链路定位参考信号。
又一种可能的实施方式中，第五消息中还可以包括所述第三侧行链路定位参考信号的指示信息。所述第三侧行链路定位参考信号的指示信息可以包括所述第三侧行链路定位参考信号的索引值。举个例子，第五消息可以包括侧行链路控制信息(sidelink control information，SCI)，其中SCI中包括触发状态字段，其中触发状态字段承载的值比如可以包括侧行链路定位参考信号的索引值，第一终端设备发送的第三侧行链路定位参考信号为该侧行链路定位参考信号的索引值对应的侧行链路定位参考信号。第二终端设备接收第五消息，从第五消息中的触发状态字段确定出侧行链路定位参考信号的索引值。本申请实施例中第一终端设备和第二终端设备可以分别预配置侧行链路定位参考信号的索引值和侧行链路定位参考信号的资源信息的关联关系。从而，第二终端设备从第五消息中确定出侧行链路定位参考信号的索引值之后，可以根据侧行链路定位参考信号的索引值和侧行链路定位参考信号的资源信息的关联关系，确定出该侧行链路定位参考信号的索引值对应的资源信息，进而在该资源信息对应的资源上接收第三侧行链路定位参考信号。本申请实施例中，可以在第二终端设备和第一终端设备分别预配置侧行链路定位参考信号的标识与侧行链路定位参考信号的索引值的关联关系，从而保证第二终端设备与第一终端设备根据同一个侧行链路定位参考信号的索引值确定出同一个侧行链路定位参考信号。
又一种可能的实施方式中，第五消息可以包括SCI和侧行共享信道(sidelink shared channel，SL-SCH)(侧行共享信道)消息。其中SCI提供了SL-SCH的调度信息。SL-SCH中可以包括第三侧行链路定位参考信号的资源信息(为第三侧行链路定位参考信号分配的时域资源信息和/或频域资源信息等)，和/或所述第三侧行链路定位参考信号的索引值等。
步骤802：第一终端设备发送第三侧行链路定位参考信号。
图8中以第二终端设备和第三终端设备接收到第三侧行链路定位参考信号为例进行展示。
一种可能的实施方式中，第五消息可以通过单播的方式发送，第五消息的目的地址为单播地址。比如，第一终端设备可以向第二终端设备和第三终端设备发送两条单播消息，以第一终端设备向第二终端设备发送的单播的消息为例进行介绍，为了区分，将第一终端设备向第二终端设备发送的单播的消息称为第五消息，该第五消息的目的地址为第二终端设备的地址。第五消息为单播消息，则第五消息的接收方仅为第二终端设备，这种情况下，其他终端设备(除第二终端设备之外的其他终端设备)即使获取到第三侧行链路定位参考信号的调度信息，也不需要对该调度信息调度的第三侧行链路定位参考信号进行测量，该其他终端设备还可以确定出第三侧行链路定位参考信号所占用的时频资源，继而在需要使用时频资源进行侧行链路定位参考信号的发送时避开该第三侧行链路定位参考信号所占用的时频资源。
又一种可能的实施方式中，第五消息可以通过组播的方式发送，即第五消息的目的地址为组播地址。第五消息的接收方可以为一组终端设备。该组终端设备可以包括一个或多个终端设备，比如该组终端设备包括第二终端设备和第三终端设备。这种情况下，该组终端设备中的一个或多个终端设备能够获取到第三侧行链路定位参考信号的调度信息，该组终端设备中的一个或多个终端设备可以根据第三侧行链路定位参考信号的调度信息接收第三侧行链路定位参考信号。
又一种可能的实施方式中，第五消息可以通过广播的方式发送。这种情况下，一个或多个终端设备能够获取到第三侧行链路定位参考信号的调度信息，一个或多个终端设备可以根据第三侧行链路定位参考信号的调度信息接收第三侧行链路定位参考信号。
请继续参与图8，本申请实施例中第一终端设备可以发送多次第三侧行链路定位参考信号，第一终端设备可以周期性发送第三侧行链路定位参考信号，也可以非周期性的发送第三侧行链路定位参考信号。
又一种可能的实施方式中，在上述信息b1中的时间信息可以包括信息b1-1、信息b1-2、信息b1-3、信息b1-4或信息b1-5中的至少一项。
信息b1-5：时间间隔指示信息。
时间间隔指示信息可以指示第一终端设备接收侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔。本申请实施例中的时间间隔可以为时隙间隔或子帧间隔。
或者，时间间隔指示信息可以指示向第一终端设备发送侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔。
在第三侧行链路定位参考信号为周期性发送的情况下，第二时间参考点包括第三侧行链路定位参考信号的一个发送周期内的时间。在第三侧行链路定位参考信号为周期性发送的情况下，上述信息b1-4中的时间窗信息中时间窗的周期可以独立配置，也可以与第三侧行链路定位参考信号的周期一致。
在第三侧行链路定位参考信号为非周期性发送的情况下，第二时间参考点包括：第三侧行链路定位参考信号的发送时间，或接收到第三侧行链路定位参考信号的时间。
举个例子，时间间隔指示信息指示向第一终端设备发送侧行链路定位参考信号的时间与第二时间参考点之间的时间间隔为5ms。第二时间参考点包括接收到第三侧行链路定位参考信号的时间。则第二终端设备需要在接收到第三侧行链路定位参考信号的5ms内发送第一侧行链路定位参考信号。
本申请实施例中的时间间隔可以为正值，也可以为负值，比如时间间隔为-5ms，则表示第二终端设备先发送第一侧行链路定位参考信号，第一终端设备后发送第三侧行链路定位参考信号。而且，第三侧行链路定位参考信号和第一侧行链路定位参考信号之间的时间间隔位于5ms以内。
在图8所示的方案与图7所示的方案结合使用的情况下，前述步骤701中的第二消息还可以包括第三侧行链路定位参考信号的配置信息。在第一终端设备可以周期性发送第三侧行链路定位参考信号的情况下，第二消息可以包括第三侧行链路定位参考信号的周期信息。如此，其他终端设备可以根据第三侧行链路定位参考信号的周期信息周期性的接收第三侧行链路定位参考信号，而且由于第三侧行链路定位参考信号周期性发送，因此其他终端设备可以只接收一次第三侧行链路定位参考信号的周期信息，之后依据该第三侧行链路定位参考信号的周期信息可以接收多次第三侧行链路定位参考信号，从而可以节省第一终端设备向其他终端设备通知第三侧行链路定位参考信号的配置信息的次数，节省资源。
其中，周期信息比如可以包括第三侧行链路的周期(第三侧行链路的一个周期为40毫秒(millisecond，ms))、时隙偏移等。时隙偏移可以是指第三侧行链路的两个周期之间的时隙间隔，比如两个周期之间可以间隔80个时隙。
可以看出，在第一终端设备向其他终端设备(以第二终端设备为例)发送第三侧行链路的情况下，第二终端设备可以对第三侧行链路定位参考信号进行测量，比如可以应用RTT技术对第二终端设备进行定位，这种情况下，第二终端设备可以测量接收到第三侧行链路定位参考信号和发送第一侧行链路定位参考信号的时间差，第一终端设备可以测量发送点侧行链路定位参考信号和接收到第一侧行链路定位参考信号的时间差，该两个时间差可以基于RTT技术对第二终端设备进行定位。
另一方面，由于第一终端设备可以通过第二消息携带时间信息，进而可以指示其他终端设备(以第二终端设备为例)向第一终端设备发送侧行链路定位参考信号的时间，因此第一终端设备可以将第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间设置的较近一些，也可以理解为：第一终端设备可以将第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间尽量接近。由于在侧行链路中，终端设备可能处于移动状态，因此第三侧行链路定位参考信号的发送时间与第一侧行链路定位参考信号的发送时间尽量接近可以尽量降低侧行链路场景中终端设备移动性的影响。
值得说明的是，图8给出的实施例是结合上述图7的实施例进行展示，图8示出的实施例也可以与前述图4、图5或图6相结合，这种情况下，可以在图4、图5或图6所示的方案中，包括步骤801和步骤802。
一种可能的实施方式中，当图8所示的方案与图7所示的方案结合时，步骤801和步骤802可以在步骤701之后执行。本申请实施例中步骤801和步骤802中的任一个步骤与步骤400、步骤601、步骤401、步骤500、步骤602、步骤501和步骤402中的任一个均无绝对的先后关系。比如，步骤802可以在步骤401之前执行，也可以在步骤401之后执行。步骤802可以在步骤501之前执行，也可以在步骤501之后执行。
结合上述具体实施例图4、图5、图6、图7和图8中任一项，图9示例性示出本申请实施例提供的又一种可能的定位信息传输方法的流程示意图。
请参阅图9，该方法还可以包括步骤901：
步骤901：网络设备发送配置消息。
网络设备比如可以前述图1中的网络设备，或者为前述图2中的接入网设备。
第一终端设备可以接收配置消息。第二终端设备也可以接收配置消息。第三终端设备也可以接收配置消息。
配置消息可以为无线资源控制(radio resource control，RRC)配置消息。配置消息中可以包括侧行链路定位参考信号资源的信息，一般各个终端设备根据配置消息确定发送侧行链路定位参考信号所使用的资源。
配置消息中可以包括第二触发状态信息。第二触发状态信息关联一个或多个侧行链路定位参考信号资源。第一终端设备、第二终端设备或第三终端设备发送侧行链路定位参考信号所使用的资源可以为第二触发状态关联的资源。第二触发状态信息还可以关联其他信息，具体内容可以参见第一触发状态信息的相关介绍，在此不再赘述。
又一种可能的实施方式中，可以在第一终端设备、第二终端设备或第三终端设备中预先配置侧行链路定位参考信号资源的信息，比如可以预先配置第二触发状态信息，比如可以在其出厂时预配置第二触发状态信息，如此，处于网络设备信号覆盖范围之外的终端设备可以根据预配置的第二触发状态确定需要采用的侧行链路定位参考信号。
又一种可能的实施方式中，第一触发状态信息关联的一个或多个侧行链路定位参考信号资源为第二触发状态信息关联的一个或多个侧行链路定位参考信号资源中的资源。第一触发状态信息关联的一个或多个侧行链路定位参考信号资源是网络设备指示的，或者是第一终端设备选择的。也就是说，第一终端设备通过网络设备发送配置消息或通过预配置的方式获取到第二触发状态信息后，可以根据第二触发状态信息生成第一触发状态信息，并向其他终端设备发送第一触发状态信息。也就是说，第一终端设备向其他终端设备推荐的其他终端设备在发送侧行链路定位参考信号时所使用的资源可以为第二触发状态信息关联的资源中的资源。
本申请实施例中第一终端设备、第二终端设备或第三终端设备通过网络设备发送配置消息或通过预配置的方式获取到的侧行链路定位参考信号资源的信息可以包括周期性的侧行链路定位参考信号资源的配置，也可以包括非周期性的侧行链路定位参考信号的资源的配置。比如：第一终端设备在发送第三侧行链路定位参考信号时可以采用周期性的侧行链路定位参考信号资源的配置周期性发送第三侧行链路定位参考信号，也可以采用非周期性的侧行链路定位参考信号资源的配置非周期性发送第三侧行链路定位参考信号。再比如，第二终端设备可以采用非周期性的侧行链路定位参考信号资源的配置非周期性发送第一侧行链路定位参考信号。
需要说明的是，在本申请的实施例中，某一网元(例如：A网元)接收来自另一网元(例如：B网元)的信息，可以指A网元直接从B网元接收信息，也可以指A网元经其他网元(例如：C网元)从B网元接收信息。当A网元经C网元从B网元接收信息时，C网元可以对信息进行透传，也可以将信息进行处理，例如：将信息携带在不同的消息中进行传输或者对信息进行筛选，只发送筛选后的信息给A网元。类似的，在本申请的各实施例中，A网元向B网元发送信息，可以指A网元直接向B网元发送信息，也可以指A网元经其他网元(例如：C网元)向B网元发送信息。
本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个， “多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
以及，除非有特别说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
需要说明的是，上述各个消息的名称仅仅是作为示例，随着通信技术的演变，上述任意消息均可能改变其名称，但不管其名称如何发生变化，只要其含义与本申请上述消息的含义相同，则均落入本申请的保护范围之内。
根据前述方法，图10为本申请实施例提供的通信装置的结构示意图，如图10所示，该通信装置可以为第一终端设备或第二终端设备，也可以为芯片或电路，比如可设置于第一终端设备的芯片或电路，再比如可设置于第二终端设备内的芯片或电路。该通信装置可以用于执行上述图4、图5、图6、图7、图8或图9中任一项的相关方案中第一终端设备侧或第二终端设备侧的方法。
该通信装置1801包括处理器1802和收发器1803。
进一步的，该通信装置1801可以包括有存储器1804。图中存储器1804为虚线是进一步标识存储器为可选地意思。
进一步的，该通信装置1801还可以进一步包括总线系统，其中，处理器1802、存储器1804、收发器1803可以通过总线系统相连。
应理解，上述处理器1802可以是一个芯片。例如，该处理器1802可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
在实现过程中，上述方法的各步骤可以通过处理器1802中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1802中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1804，处理器1802读取存储器1804中的信息，结合其硬件完成上述方法的步骤。
应注意，本申请实施例中的处理器1802可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器1804可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。本申请实施例中的存储器的相关描述可以参见前述内容，在此不再赘述。
当通信装置1801为上述第一终端设备，处理器1802用于通过收发器1803执行：接收来自第二终端设备的第一侧行链路定位参考信号，通过广播或组播方式发送第一消息，第一消息包括第一信息，第一信息包括第一指示信息和第二指示信息。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收来自所述第二终端设备的第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收来自所述第二终端设备的第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收来自第三终端设备的第二侧行链路定位参考信号。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803发送第二消息，所述第二消息包括时间信息。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803所述第一终端设备发送第三侧行链路定位参考信号。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803以组播或广播发送第五消息，所述第五消息包括指示所述第三侧行链路定位参考信号的调度信息。
当通信装置1801为上述第一终端设备，在一种可能的实施方式中，所述处理器1802还用于：获取第二触发状态信息。
当通信装置1801为上述第二终端设备，处理器1802用于通过收发器1803执行：发送第一侧行链路定位参考信号，接收第一消息，第一消息通过广播或组播方式发送，第一消息包括第一信息，第一信息包括第一指示信息和第二指示信息。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803向所述第一终端设备发送第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803向所述第一终端设备发送第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收来自第一终端设备的第二消息，所述第二消息包括时间信息。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收来自所述第一终端设备的第三侧行链路定位参考信号。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：通过所述收发器1803接收第五消息，所述第五消息包括指示所述第三侧行链路定位参考信号的调度信息，所述第五消息是通过组播或广播方式发送的。
当通信装置1801为上述第二终端设备，在一种可能的实施方式中，所述处理器1802还用于：获取第二触发状态信息；所述第二触发状态信息关联一个或多个侧行链路定位参考信号资源。
该通信装置所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
根据前述方法，图11为本申请实施例提供的通信装置的结构示意图，如图11所示，通信装置1901可以包括通信接口1903和处理器1902。进一步的，该通信装置1901可以包括有存储器1904。图中存储器1904为虚线是进一步标识存储器为可选地意思。通信接口1903，用于输入和/或输出信息；处理器1902，用于执行计算机程序或指令，使得通信装置1901实现上述图4、图5、图6、图7、图8或图9中任一项的相关方案中第一终端设备侧的方法，或使得通信装置1901实现上述图4、图5、图6、图7、图8或图9中任一项的相关方案中第二终端设备侧的方法。本申请实施例中，通信接口1903可以实现上述图10的收发器1803所实现的方案，处理器1902可以实现上述图10的处理器1802所实现的方案，存储器1904可以实现上述图10的存储器1804所实现的方案，在此不再赘述。
基于以上实施例以及相同构思，图12为本申请实施例提供的通信装置的示意图，如图12所示，该通信装置2001可以为第一终端设备或第二终端设备，也可以为芯片或电路，比如可设置于第一终端设备或第二终端设备的芯片或电路。
该通信装置2001包括处理单元2002和通信单元2003。进一步的，该通信装置2001可以包括有存储单元2004，也可以不包括存储单元2004。图中存储单元2004为虚线是进一步标识存储器为可选地意思。
通信单元2003，用于输入和/或输出信息；处理单元2002，用于执行计算机程序或指令，使得通信装置2001实现上述图4、图5、图6、图7、图8或图9中任一项的相关方案中第一终端设备侧的方法，或使得通信装置2001实现上述图4、图5、图6、图7、图8或图9中任一项的相关方案中第二终端设备侧的方法。本申请实施例中，通信单元2003可以实现上述图10的收发器1803所实现的方案，处理单元2002可以实现上述图10的处理器1802所实现的方案，存储单元2004可以实现上述图10的存储器1804所实现的方案，在此不再赘述。
根据本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码或指令，当该计算机程序代码或指令在计算机上运行时，使得该计算机执行图4、图5、图6、图7、图8或图9中任一项所示实施例中任意一个实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种计算机可读存储介质，该计算机可读介质存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行图4、图5、图6、图7、图8或图9中任一项所示实施例中任意一个实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种芯片系统，该芯片系统可以包括处理器。该处理器与存储器耦合，可用于执行图4、图5、图6、图7、图8或图9中任一项所示实施例中任意一个实施例的方法。可选地，该芯片系统还包括存储器。存储器，用于存储计算机程序(也可以称为代码，或指令)。处理器，用于从存储器调用并运行计算机程序，使得安装有芯片系统的设备执行图4、图5、图6、图7、图8或图9中任一项所示实施例中任意一个实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种系统，其包括前述的一个或多个第一终端设备以及一个或多个第二终端设备，还可以包括第三终端设备。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disc，SSD))等。
需要指出的是，本专利申请文件的一部分包含受著作权保护的内容。除了对专利局的专利文件或记录的专利文档内容制作副本以外，著作权人保留著作权。
上述各个装置实施例中第二通信装置与第一通信装置和方法实施例中的第二通信装置或第一通信装置对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在两个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各种说明性逻辑块(illustrative logical block)和步骤(step)，能够以电子硬件、或者计算机软件和电子硬 件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
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，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。
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。功能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。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (30)

  1. 一种定位信息传输方法，其特征在于，包括：
    第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号；
    所述第一终端设备通过广播或组播方式发送第一消息，所述第一消息包括第一信息，所述第一信息包括第一指示信息和第二指示信息；
    其中，所述第一指示信息指示以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息；
    所述第二指示信息指示所述第一侧行链路定位参考信号的测量结果，所述第一侧行链路定位参考信号的测量结果用于确定所述第二终端设备的位置。
  2. 如权利要求1所述的方法，其特征在于，所述第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，还包括：
    所述第一终端设备接收来自所述第二终端设备的第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
  3. 如权利要求1-2任一项所述的方法，其特征在于，所述第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，还包括：
    所述第一终端设备接收来自所述第二终端设备的第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，还包括：
    所述第一终端设备发送第二消息，所述第二消息包括时间信息；
    其中，所述时间信息指示：所述第一终端设备接收侧行链路定位参考信号的时间，和/或，向所述第一终端设备发送侧行链路定位参考信号的时间。
  5. 如权利要求4所述的方法，其特征在于，所述时间信息包括以下内容中的至少一项：
    时隙的索引值；
    时隙的索引值的集合，所述时隙索引值的集合包括多个时隙索引值；
    时隙集合的索引值，所述时隙集合的索引值指示所述时隙集合，所述时隙集合包括一个或多个时隙；或，
    时间窗的信息。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述第一终端设备发送第二消息之后，还包括：
    所述第一终端设备发送第三侧行链路定位参考信号。
  7. 如权利要求6所述的方法，其特征在于，所述第一终端设备发送第二消息之后，所述第一终端设备发送第三侧行链路定位参考信号之前，还包括：
    所述第一终端设备通过组播或广播发送第五消息，所述第五消息包括指示所述第三侧行链路定位参考信号的调度信息。
  8. 一种定位信息传输方法，其特征在于，包括：
    第二终端设备发送第一侧行链路定位参考信号；
    所述第二终端设备接收第一消息，所述第一消息通过广播或组播方式发送，所述第一消息包括第一信息，所述第一信息包括第一指示信息和第二指示信息；
    其中，所述第一指示信息指示以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息；
    所述第二指示信息指示所述第一侧行链路定位参考信号的测量结果，所述第一侧行链路定位参考信号的测量结果用于确定所述第二终端设备的位置。
  9. 如权利要求8所述的方法，其特征在于，所述第一终端设备接收来自第二终端设备的第一侧行链路定位参考信号之前，还包括：
    所述第二终端设备向所述第一终端设备发送第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
  10. 如权利要求8-9任一项所述的方法，其特征在于，所述第二终端设备发送第一侧行链路定位参考信号之前，还包括：
    所述第二终端设备向所述第一终端设备发送第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
  11. 如权利要求8-10任一项所述的方法，其特征在于，所述第二终端设备发送第一侧行链路定位参考信号之前，还包括：
    所述第二终端设备接收来自第一终端设备的第二消息，所述第二消息包括时间信息；
    其中，所述时间信息指示：所述第一终端设备接收侧行链路定位参考信号的时间，和/或，向所述第一终端设备发送侧行链路定位参考信号的时间。
  12. 如权利要求11所述的方法，其特征在于，所述时间信息包括以下内容中的至少一项：
    时隙的索引值；
    时隙的索引值的集合，所述时隙索引值的集合包括多个时隙索引值；
    时隙集合的索引值，所述时隙集合的索引值指示所述时隙集合，所述时隙集合包括一个或多个时隙；或，
    时间窗的信息。
  13. 如权利要求8-12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第一终端设备的第二消息之后，还包括：
    所述第二终端设备接收来自所述第一终端设备的第三侧行链路定位参考信号。
  14. 一种通信装置，其特征在于，包括处理单元和通信单元：
    所述处理单元用于：通过所述通信单元接收来自第二终端设备的第一侧行链路定位参考信号；通过所述通信单元以广播或组播方式发送第一消息，所述第一消息包括第一信息，所述第一信息包括第一指示信息和第二指示信息；
    其中，所述第一指示信息指示以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息；
    所述第二指示信息指示所述第一侧行链路定位参考信号的测量结果，所述第一侧行链路定位参考信号的测量结果用于确定所述第二终端设备的位置。
  15. 如权利要求14所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元接收来自所述第二终端设备的第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
  16. 如权利要求14-15任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元接收来自所述第二终端设备的第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
  17. 如权利要求14-16任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元发送第二消息，所述第二消息包括时间信息；
    其中，所述时间信息指示：所述第一终端设备接收侧行链路定位参考信号的时间，和/或，向所述第一终端设备发送侧行链路定位参考信号的时间。
  18. 如权利要求17所述的装置，其特征在于，所述时间信息包括以下内容中的至少一项：
    时隙的索引值；
    时隙的索引值的集合，所述时隙索引值的集合包括多个时隙索引值；
    时隙集合的索引值，所述时隙集合的索引值指示所述时隙集合，所述时隙集合包括一个或多个时隙；或，
    时间窗的信息。
  19. 如权利要求14-18任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元所述第一终端设备发送第三侧行链路定位参考信号。
  20. 如权利要求19所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元以组播或广播发送第五消息，所述第五消息包括指示所述第三侧行链路定位参考信号的调度信息。
  21. 一种通信装置，其特征在于，包括处理单元和通信单元；
    所述处理单元用于：通过所述通信单元发送第一侧行链路定位参考信号；通过所述通信单元接收第一消息，所述第一消息通过广播或组播方式发送，所述第一消息包括第一信息，所述第一信息包括第一指示信息和第二指示信息；
    其中，所述第一指示信息指示以下内容中的至少一项：所述第二终端设备的标识信息，所述第一侧行链路定位参考信号的资源的标识信息，或，所述第一侧行链路定位参考信号的指示信息；
    所述第二指示信息指示所述第一侧行链路定位参考信号的测量结果，所述第一侧行链路定位参考信号的测量结果用于确定所述第二终端设备的位置。
  22. 如权利要求21所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元向所述第一终端设备发送第三消息，所述第三消息包括所述第一侧行链路定位参考信号的调度信息；所述第三消息通过组播或广播的方式发送。
  23. 如权利要求21-22任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元向所述第一终端设备发送第一测量请求消息，所述第一测量请求消息请求对所述第一侧行链路定位参考信号进行测量。
  24. 如权利要求21-23任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元接收来自第一终端设备的第二消息，所述第二消息包括时间信息；
    其中，所述时间信息指示：所述第一终端设备接收侧行链路定位参考信号的时间，和/或，向所述第一终端设备发送侧行链路定位参考信号的时间。
  25. 如权利要求24所述的装置，其特征在于，所述时间信息包括以下内容中的至少一项：
    时隙的索引值；
    时隙的索引值的集合，所述时隙索引值的集合包括多个时隙索引值；
    时隙集合的索引值，所述时隙集合的索引值指示所述时隙集合，所述时隙集合包括一个或多个时隙；或，
    时间窗的信息。
  26. 如权利要求21-25任一项所述的装置，其特征在于，所述处理单元还用于：
    通过所述通信单元接收来自所述第一终端设备的第三侧行链路定位参考信号。
  27. 一种通信装置，其特征在于，包括处理器和存储器，
    所述存储器，用于存储计算机程序或指令；
    所述处理器，用于执行存储器中的计算机程序或指令，使得权利要求1-7中任一项所述的方法被执行，或使得权利要求8-13任一项所述的方法被执行。
  28. 一种通信装置，其特征在于，包括处理模块和通信模块，所述处理模块用于通过所述通信模块执行如权利要求1-7中任一项所述的方法，或执行如权利要求8-13任一项所述的方法。
  29. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令在被计算机调用时，使得利要求1-7任一项所述的方法被执行，或使得权利要求8-13任一项所述的方法被执行。
  30. 一种芯片系统，其特征在于，包括通信接口和处理器：
    所述通信接口，用于输入和/或输出信令或数据；
    所述处理器，用于执行计算机可执行程序，使得安装有所述芯片系统的设备执行如利要求1-7任一项所述的方法，或执行如权利要求8-13任一项所述的方法。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112532360A (zh) * 2019-08-30 2021-03-19 华为技术有限公司 发送定位参考信号的方法和相关装置
CN112584487A (zh) * 2019-09-29 2021-03-30 大唐移动通信设备有限公司 信号传输方法及装置
WO2021101182A1 (ko) * 2019-11-20 2021-05-27 엘지전자 주식회사 사이드링크 측위를 위한 제어 정보 전송 방법 및 이를 위한 장치
US20210219103A1 (en) * 2018-09-28 2021-07-15 Huawei Technologies Co., Ltd. Positioning device and method for calculating a position of a mobile device
TW202137785A (zh) * 2020-03-19 2021-10-01 美商高通公司 覆蓋外的側鏈路輔助式協同定位中的定位參考信號資源的決定
CN114007183A (zh) * 2020-07-28 2022-02-01 华为技术有限公司 定位方式的触发方法及通信装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210219103A1 (en) * 2018-09-28 2021-07-15 Huawei Technologies Co., Ltd. Positioning device and method for calculating a position of a mobile device
CN112532360A (zh) * 2019-08-30 2021-03-19 华为技术有限公司 发送定位参考信号的方法和相关装置
CN112584487A (zh) * 2019-09-29 2021-03-30 大唐移动通信设备有限公司 信号传输方法及装置
WO2021101182A1 (ko) * 2019-11-20 2021-05-27 엘지전자 주식회사 사이드링크 측위를 위한 제어 정보 전송 방법 및 이를 위한 장치
TW202137785A (zh) * 2020-03-19 2021-10-01 美商高通公司 覆蓋外的側鏈路輔助式協同定位中的定位參考信號資源的決定
CN114007183A (zh) * 2020-07-28 2022-02-01 华为技术有限公司 定位方式的触发方法及通信装置

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