WO2023241596A1 - 信号传输方法、装置及设备 - Google Patents

信号传输方法、装置及设备 Download PDF

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Publication number
WO2023241596A1
WO2023241596A1 PCT/CN2023/100039 CN2023100039W WO2023241596A1 WO 2023241596 A1 WO2023241596 A1 WO 2023241596A1 CN 2023100039 W CN2023100039 W CN 2023100039W WO 2023241596 A1 WO2023241596 A1 WO 2023241596A1
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WIPO (PCT)
Prior art keywords
terminal device
resources
reference signal
positioning reference
resource
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PCT/CN2023/100039
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English (en)
French (fr)
Inventor
雷珍珠
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展讯半导体(南京)有限公司
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Publication of WO2023241596A1 publication Critical patent/WO2023241596A1/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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • 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

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular, to a signal transmission method, device and equipment.
  • each network device is configured with a dedicated downlink positioning reference signal (PRS) resource, and the network device can send PRS to the terminal device through the PRS resource;
  • PRS downlink positioning reference signal
  • each terminal device is configured with a dedicated uplink sounding reference signal (SRS) resource, and the terminal device can send SRS to the network device through the SRS resource.
  • SRS uplink sounding reference signal
  • the sidelink (SL) between terminal devices currently does not support the transmission of positioning reference signals.
  • the direct link between terminal equipment will support PRS transmission. How the terminal equipment configures the positioning reference signal transmission resources to realize the transmission of the positioning reference signal in the direct link is a technical issue that needs to be solved urgently.
  • This application provides a signal transmission method, device and equipment, which realizes the configuration of reference signal transmission resources in a direct link.
  • this application provides a signal transmission method, which is applied to a first terminal device.
  • the method includes:
  • the measurement request information includes at least one of the following:
  • sending a positioning reference signal to the second terminal device according to the measurement request information includes:
  • the positioning reference signal is sent to the second terminal device.
  • determining transmission resources according to the measurement request information includes:
  • the transmission resource is determined among the candidate resources.
  • determining candidate resources in a resource pool corresponding to the positioning reference signal includes:
  • the candidate resources are determined based on the unoccupied resources.
  • the resource pool corresponding to the positioning reference signal and the resource pool corresponding to data transmission are the same; or, the resource pool corresponding to the positioning reference signal and the resource pool corresponding to data transmission are different.
  • determining the transmission resource among the candidate resources according to the measurement request information includes:
  • the target resource is determined to be the transmission resource.
  • the number of second terminal devices is M; and determining the transmission resource among the candidate resources according to the measurement request information includes:
  • N target terminal devices are determined among the M second terminal devices, and the number of the target resources corresponding to the target terminal device is The ratio to the total number of resources to be selected is greater than or equal to the first threshold;
  • the transmission resources are determined according to the target resources corresponding to the N target terminal devices.
  • determining the transmission resources according to the target resources corresponding to the N target terminal devices includes:
  • the union of target resources corresponding to the N target terminal devices is determined as the transmission resource.
  • this application provides a signal transmission method, which is applied to a second terminal device.
  • the method includes:
  • the measurement request information includes at least one of the following:
  • sending measurement request information to the first terminal device includes:
  • the measurement request information is sent to the first terminal device in a unicast, multicast or broadcast manner.
  • the receiving the positioning reference signal corresponding to the measurement request information sent by the first terminal device includes:
  • the positioning reference signal is received through resources in a resource pool corresponding to data transmission.
  • this application provides a signal transmission device, which is used in a first terminal device and includes a receiving module and a sending module; wherein,
  • the receiving module is used to receive measurement request information sent by the second terminal device
  • the sending module is configured to send a positioning reference signal to the second terminal device according to the measurement request information.
  • the measurement request information includes at least one of the following:
  • the sending module is specifically used to:
  • the positioning reference signal is sent to the second terminal device.
  • the sending module is specifically used to:
  • the transmission resource is determined among the candidate resources.
  • the sending module is specifically used to:
  • the candidate resources are determined based on the unoccupied resources.
  • the resource pool corresponding to the positioning reference signal is the same as the resource pool corresponding to data transmission; or, the resource pool corresponding to the positioning reference signal is different from the resource pool corresponding to data transmission.
  • the sending module is specifically used to:
  • the target resource is determined to be the transmission resource.
  • the number of second terminal devices is M
  • the sending module is specifically used to:
  • N target terminal devices are determined among the M second terminal devices, and the number of the target resources corresponding to the target terminal device is the same as the number of the candidate resources.
  • the ratio of the total number is greater than or equal to the first threshold;
  • the transmission resources are determined according to the target resources corresponding to the N target terminal devices.
  • the sending module is specifically used to:
  • the union of target resources corresponding to the N target terminal devices is determined as the transmission resource.
  • this application provides a signal transmission device, applied to a second terminal device, including a sending module and a receiving module; wherein,
  • the sending module is used to send measurement request information to the first terminal device
  • the receiving module is configured to receive a positioning reference signal corresponding to the measurement request information sent by the first terminal device, where the positioning reference signal is used to determine the position of the first terminal device.
  • the measurement request information includes at least one of the following:
  • the sending module is specifically used to:
  • the measurement request information is sent to the first terminal device in a unicast, multicast or broadcast manner.
  • the receiving module is specifically used to:
  • the positioning reference signal is received through resources in a resource pool corresponding to data transmission.
  • this application provides a signal transmission device, including: a processor, and a memory communicatively connected to the processor;
  • the memory stores a computer program
  • the processor executes the computer program to implement the method according to any one of the first aspects.
  • the present application provides a signal transmission device, including: a processor, and a memory communicatively connected to the processor;
  • the memory stores a computer program
  • the processor executes the computer program to implement the method according to any one of the second aspects.
  • the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program.
  • the computer program is executed by a computer, the method as described in any one of the first aspects is implemented.
  • the present application provides a computer-readable storage medium.
  • a computer program is stored in the computer-readable storage medium.
  • the implementation of the second aspect is implemented. any of the methods described.
  • the present application provides a computer program product, including a computer program that implements the method according to any one of the first aspects when executed by a computer.
  • the present application provides a computer program product, including a computer program that implements the method described in any one of the second aspects when executed by a computer.
  • the second terminal device can generate measurement request information according to its own positioning requirements and resource reservation conditions, and can send the measurement request information to the first terminal device.
  • the first terminal device may send a positioning reference signal to the second terminal device during the measurement interval of the second terminal device according to the measurement request information to assist the second terminal device in positioning.
  • Figure 1 is a schematic diagram of a resource pool provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of autonomous resource selection by a terminal device provided by an embodiment of the present application.
  • Figure 3A is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Figure 3B is a schematic diagram of another communication system architecture provided by an embodiment of the present application.
  • Figure 3C is a schematic diagram of another communication system architecture provided by an embodiment of the present application.
  • Figure 4 is a configuration structure of PRS resources provided by an embodiment of the present application.
  • Figure 5 is a schematic flow chart of a signal transmission method provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of the measurement gap provided by the embodiment of the present application.
  • Figure 7 is a schematic flow chart of another signal transmission method provided by an embodiment of the present application.
  • Figure 8 is a signal transmission device provided by an embodiment of the present application.
  • Figure 9 is a signal transmission device provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the hardware structure of the signal transmission device provided by this application.
  • This application relates to mobile communication technology. To facilitate understanding of the embodiments of this application, the relevant communication technologies involved in this application are first described in detail.
  • Figure 1 is a schematic diagram of a resource pool provided by an embodiment of the present application. Please refer to Figure 1.
  • the granularity of the time domain in the resource pool is time slot (slot), and the granularity of frequency domain is data transmission subchannel (subchannel).
  • Each data transmission sub-channel contains m resource blocks (Resource Block, RB), m is configured by the higher layer.
  • RB Resource Block
  • Each transmission resource will transmit the Physical Sidelink Control Channel (PSCCH) and the Physical Sidelink Share Channel (PSSCH) at the same time. That is to say, each transmission will include PSCCH and PSSCH.
  • PSCCH is used to carry secondary link control information (Sidelink Control Information, SCI).
  • PSSCH is used to carry transmission data.
  • the SCI may include time-frequency domain location information of the current transmission resource and time-frequency domain location information of later reserved transmission resources, and may also include decoding some parameters in the PSSCH.
  • the frequency domain starting position of PSCCH is the same as the frequency domain starting position of PSSCH. When the terminal device detects the PSCCH, it can obtain the frequency domain starting position of the current PSSCH.
  • the terminal device can select direct link transmission resources in the resource pool based on the perceptual resource selection method, without the base station being required to participate in resource scheduling.
  • Figure 2 is a schematic diagram of autonomous resource selection by a terminal device provided by an embodiment of the present application.
  • UE4 triggers resource selection at time n.
  • (nT 0 , nT proc, 0 ) is the resource awareness window
  • (n+T 1 , n+T 2 ) is the resource selection window.
  • UE4 can use the resource awareness window to Perform resource awareness on the resources occupied by other terminal devices.
  • At time n when UE4 performs resource selection, according to the sensing results in the resource sensing window, it excludes the reserved resources of other terminal devices from the resources in the resource selection window, obtains the candidate resource set, and determines the user in the candidate resource set.
  • the target resource for transmitting data is the resource selection window.
  • UE4 which is doing resource sensing, detects the PSCCHs of other terminal devices (eg, UE1, UE2, UE3) in the resource sensing window. After detecting the PSCCH, UE4 can decode the control information carried in the PSCCH and obtain the resource indication information and resource reservation information of the corresponding terminal device from the control information. UE4 can also perform Reference Signal Receiving Power (RSRP) measurements on the detected PSCCH, or UE4 can also perform Demodulation Reference Signal (DMRS) on the PSSCH corresponding to the detected PSCCH. Take RSRP measurements. If the RSRP measured by UE4 is higher than the preset threshold, the reserved resources of the corresponding terminal device are excluded.
  • RSRP Reference Signal Receiving Power
  • DMRS Demodulation Reference Signal
  • UE4 detects that the RSRP of UE1 is higher than the preset threshold, and the RSRP of UE2 and UE3 is lower than the threshold. Therefore, UE4 excludes the reserved resources of UE1 from the resources in the resource selection window and reserves the reserved resources of UE2 and UE3.
  • Unicast refers to one terminal device transmitting data only to another terminal device.
  • Multicast refers to a terminal device transmitting data to other terminal devices in the same group as the terminal device. In other words, multicast data can only be received by terminal devices in the group, and the higher layer will indicate which terminal devices belong to a group.
  • Broadcast refers to one terminal device transmitting data to all other terminal devices, and all terminal devices can receive broadcast data.
  • FIG. 3A is a schematic diagram of a communication system architecture provided by an embodiment of the present application. As shown in Figure 3A, the communication system includes: network equipment, terminal equipment 1 and terminal equipment 2.
  • both terminal equipment 1 and terminal equipment 2 are within the coverage of the network equipment.
  • Terminal device 1 can communicate with network devices.
  • the terminal device 2 can communicate with network devices. Communication between terminal device 1 and terminal device 2 is also possible.
  • FIG. 3B is a schematic diagram of another communication system architecture provided by an embodiment of the present application. As shown in Figure 3B, the communication system includes: network equipment, terminal equipment 1 and terminal equipment 2.
  • the terminal device 1 is within the coverage of the network device.
  • Terminal equipment Device 1 can communicate with network devices.
  • Terminal device 2 is not within the coverage of the network device. Communication is possible between terminal device 2 and terminal device 1.
  • FIG. 3C is a schematic diagram of another communication system architecture provided by an embodiment of the present application. As shown in Figure 3C, the communication system includes: network equipment, terminal equipment 1 and terminal equipment 2.
  • terminal equipment 1 nor terminal equipment 2 is within the coverage of the network equipment.
  • Terminal device 1 and terminal device 2 can communicate with each other.
  • the terminal device may be a vehicle, a vehicle-mounted terminal or a vehicle-mounted device, a user terminal, a mobile device or a remote terminal, or a roadside device, etc. It should be understood that the number of network devices, terminal devices 1 and terminal devices 2 may be one or more, which is not limited in this embodiment of the present application.
  • positioning reference signals can be transmitted between network equipment and terminal equipment within its coverage.
  • the network device When transmitting positioning reference signals, the network device is configured with dedicated positioning reference signal transmission resources, or the terminal device is configured with dedicated positioning reference signal transmission resources. Positioning reference signal transmission resources are used to transmit positioning reference signals. For example, for PRS, the network device is configured with dedicated PRS resources, and the PRS resources are used to transmit PRS; for SRS, the terminal device is configured with dedicated SRS resources, and the SRS resources are used for transmitting SRS.
  • a positioning frequency layer can include multiple transmit and receive points (TRP), for example, TRP1, TRP2...TRPN.
  • TRP can be a network device.
  • One TRP can correspond to multiple PRS resource sets, for example, PRS resource set 1, PRS resource set 2...PRS resource set N.
  • a PRS resource set may include multiple PRS resources, for example, PRS resource 1, PRS resource 2...PRS resource N.
  • the TRP can send PRS to the terminal device through its own configured PRS resources.
  • the transmission of positioning reference signals is not supported between terminal devices, and the transmission resources in the direct link are relatively tight, making it difficult to configure dedicated positioning reference signal transmission resources for each terminal device.
  • the terminal device When the terminal device is not within the coverage of the network device, the terminal device The device cannot perform positioning.
  • the terminal device can determine the reference signal transmission resources in the resource pool in a resource-aware manner to realize the transmission of the positioning reference signal in the direct link.
  • one terminal device can send a positioning reference signal to another terminal device to assist the other terminal device in positioning.
  • Figure 5 is a schematic flowchart of a signal transmission method provided by an embodiment of the present application. As shown in Figure 5, the method in this embodiment includes:
  • the second terminal device sends measurement request information to the first terminal device.
  • the first terminal device receives the measurement request information sent by the second terminal device.
  • the second terminal device may be a terminal device with positioning requirements.
  • the first terminal device may be a terminal device that assists the second terminal device in positioning.
  • the second terminal device can generate measurement request information according to its own positioning requirements and resource reservation conditions, and can send the measurement request information to the first terminal device.
  • the second terminal device can use the resources in the resource pool corresponding to the data transmission to send the measurement request information to the first terminal device.
  • the measurement request information may trigger the first terminal device to send a positioning reference signal to the second terminal device.
  • the second terminal device receives the positioning reference signal to perform positioning measurement, and determines the position of the second terminal based on the measurement result.
  • the measurement request information may include a measurement gap used by the second terminal device for measurement.
  • the measurement request information includes at least one of the following: the starting time domain position of the measurement gap; the period of the measurement gap; and the duration of the measurement gap.
  • the measurement gap may be a time period used by the second terminal device to receive the positioning reference signal. Measurement gaps occur periodically in the time domain.
  • the starting time domain position of the measurement gap may be the time domain starting position of the first measurement gap.
  • the duration of the measurement gap may be the duration of the time period during which the second terminal device receives the positioning reference signal.
  • the period of the measurement gap may be the time interval between the starting time domain positions of two consecutive measurement gaps.
  • Figure 6 is a schematic diagram of a measurement gap provided by an embodiment of the present application.
  • the starting time domain position of the measurement gap of the second terminal device is t 0 ;
  • t 0 can be a timeslot number, a subframe number, or an absolute time.
  • the duration of the measurement gap for the second terminal device to receive the positioning reference signal is s, and the period of the measurement gap for the second terminal device is n; where the units of s and n may be ms, time slot, subframe, etc.
  • the second terminal device may send the measurement request information to the first terminal device in a unicast, multicast or broadcast manner.
  • the second terminal device When the second terminal device sends measurement request information to the first terminal device through unicast, the second terminal device only sends the measurement request information to the first terminal device; when the second terminal device sends measurement request information to the first terminal device through multicast The device sends measurement request information. While the second terminal device sends measurement request information to the first terminal device, it can also send measurement request information to other terminal devices in the same group; when the second terminal device broadcasts to the third terminal device, One terminal device sends measurement request information. While the second terminal device sends measurement request information to the first terminal device, it can also send measurement request information to all other terminal devices.
  • the second terminal device when selecting and/or reserving data transmission resources, the second terminal device needs to exclude resources that overlap with the measurement gap.
  • the first terminal device sends a positioning reference signal to the second terminal device according to the measurement request information.
  • the second terminal device receives the positioning reference signal sent by the first terminal device.
  • the first terminal device may send a positioning reference signal to the second terminal device during the measurement gap according to the measurement request information to assist the second terminal device in positioning.
  • the second terminal device can generate measurement request information according to its own positioning requirements and resource reservation conditions, and can send the measurement request information to the first terminal device.
  • the first terminal device may send a positioning reference signal to the second terminal device in the measurement gap of the second terminal device according to the measurement request information to assist the second terminal device in positioning.
  • the first terminal device when the first terminal device sends a positioning reference signal to the second terminal device, it needs to determine the positioning reference signal transmission resources.
  • the method for the first terminal device to determine the positioning reference signal transmission resources during the positioning reference signal transmission process will be described.
  • FIG. 7 is a schematic flowchart of another signal transmission method provided by an embodiment of the present application. As shown in Figure 7 As shown, the method in this embodiment includes:
  • the second terminal device sends measurement request information to the first terminal device.
  • the first terminal device determines candidate resources in the resource pool corresponding to the positioning reference signal.
  • the resource pool corresponding to the positioning reference signal is the resource pool where the resources used to transmit the positioning reference signal are located.
  • the resource pool corresponding to the positioning reference signal and the resource pool corresponding to data transmission are the same; or, the resource pool corresponding to the positioning reference signal and the resource pool corresponding to data transmission are different.
  • the resource pool corresponding to the positioning reference signal is the same as the resource pool corresponding to the data transmission.
  • the positioning reference signal and data share a transmission resource pool, and the first terminal device can determine the candidate resource in the resource pool corresponding to data transmission.
  • the resource pool corresponding to the positioning reference signal is different from the resource pool corresponding to the data transmission.
  • the positioning reference signal is configured with a dedicated resource pool, and the first terminal device can determine the candidate resource in the positioning reference signal dedicated resource pool.
  • the resource pool corresponding to the positioning reference signal may be at a different frequency than the resource pool corresponding to data transmission; or, the resource pool corresponding to the positioning reference signal may be at the same frequency as the resource pool corresponding to the data transmission.
  • the resource pool corresponding to data transmission is on a different carrier channel; or, the resource pool corresponding to the positioning reference signal can be on a different partial bandwidth (Bandwidth Part, BWP) than the resource pool corresponding to data transmission.
  • BWP Bandwidth Part
  • the first terminal device needs to readjust the radio frequency link. That is, the frequency point for current data transmission is readjusted to the frequency point for positioning reference signal transmission, and the candidate resources are determined.
  • the first terminal device needs to perform carrier switching. That is, the carrier for current data transmission is switched to the carrier for positioning reference signal transmission, and candidate resources are determined.
  • the first terminal device needs to perform BWP switching. That is, the BWP for current data transmission is switched to the BWP for positioning reference signal transmission, and the candidate resources are determined.
  • the resources to be selected are a set of periodically available resources.
  • the first terminal device determines the unoccupied resources in the resource pool corresponding to the reference signal based on the resource sensing results within the resource sensing window of the resource pool corresponding to the positioning reference signal; based on the unoccupied resources, Determine the resources to be selected. Specifically, the first terminal device periodically reserves based on unoccupied resources to obtain candidate resources.
  • the unoccupied resources are the available resources in the resource pool. After the first terminal device excludes occupied resources from the resource pool according to the sensing result in the resource sensing window, the remaining resources in the resource pool are unoccupied resources.
  • the first terminal device determines transmission resources among the candidate resources according to the measurement request information.
  • the transmission resources are resources used by the first terminal device to transmit positioning reference signals.
  • determining transmission resources among candidate resources includes at least the following two situations:
  • Case 1 The number of second terminal devices is 1. That is, the first terminal device receives measurement request information from the second terminal device.
  • the first terminal device determines the target resource among the candidate resources, and the measurement gap of the target resource overlaps with that of the second terminal device; when the ratio of the number of target resources to the total number of candidate resources is greater than or equal to the preset threshold
  • the target resource is determined as the transmission resource, and the first terminal device uses the determined transmission resource to send the positioning reference signal to the second terminal device.
  • the target resource is the candidate resource that overlaps the measurement gap.
  • the above-mentioned candidate resources that overlap with the measurement gap are determined as transmission resources.
  • the candidate resources determined by the first terminal device are 10 resources that appear periodically and the preset threshold is 80%. Then, when 8 or more candidate resources overlap with the measurement gap, the 8 candidate resources that overlap with the measurement gap are determined as transmission resources.
  • Case 2 The number of second terminal devices is M. That is, the first terminal device receives measurement request information from M second terminal devices. Among them, M is an integer greater than or equal to 2.
  • the target resource corresponding to each second terminal device is determined among the candidate resources, and the target resource overlaps with the measurement gap corresponding to the second terminal device; according to the number of target resources corresponding to each second terminal device, in N target terminal devices are determined among the M second terminal devices, and the ratio of the number of target resources corresponding to the target terminal device to the total number of resources to be selected is greater than or equal to the first threshold; if the ratio of N to M is greater than or equal to the second threshold, determine the transmission resources according to the target resources corresponding to the N target terminal devices, and the first terminal device uses the determined transmission resources to send the positioning reference signal to the second terminal device.
  • the target resource is a candidate resource that overlaps with the measurement gap of the second terminal device.
  • the second terminal device when the ratio of the number of target resources of the second terminal device to the total number of candidate resources is greater than or equal to the first threshold, the second terminal device is determined to be the target terminal device. For example, assuming that the first threshold is 80%, when the ratio of the number of target resources of a second terminal device to the total number of candidate resources is greater than or equal to 80%, the second terminal device is determined to be the target terminal device.
  • transmission resources are determined based on the target resources corresponding to the N target terminal devices. For example, assuming that the second threshold is 60% and M is 8, when N is greater than or equal to 5, the first terminal device can determine the transmission resources according to the target resources of the five target terminal devices.
  • the first terminal device determines the intersection of the target resources corresponding to the N target terminal devices as the transmission resource; or determines the union of the target resources corresponding to the N target terminal devices as the transmission resource.
  • the first terminal device can determine the transmission resource through at least the following steps:
  • the second terminal device corresponding to the target resource is recorded as the target terminal device.
  • the transmission resource is determined to be the union of target resources of all target terminal devices, or the transmission resource is determined to be the intersection of target resources of all target terminal devices.
  • the first terminal device sends a positioning reference signal to the second terminal device on the transmission resource.
  • the second terminal device acquires the positioning reference signal from the first terminal device.
  • the second terminal device can receive the positioning reference signal through the resources in the resource pool corresponding to data transmission.
  • the second terminal device may receive the positioning reference signal through the resources in the resource pool corresponding to the positioning reference signal.
  • the second terminal device needs to readjust the radio frequency link. That is, the frequency point of current data transmission is readjusted to the frequency point of positioning reference signal transmission, and the positioning parameters are completed during the measurement gap. Check signal reception.
  • the second terminal device needs to perform carrier switching. That is, switching from the carrier for current data transmission to the carrier for positioning reference signal transmission, and completing the reception of the positioning reference signal in the measurement gap.
  • the second terminal device needs to perform BWP switching. That is, the BWP for current data transmission is switched to the BWP for positioning reference signal transmission, and the reception of the positioning reference signal is completed in the measurement gap.
  • the second terminal device after the second terminal device sends the measurement request information to the first terminal device, it can immediately enable the measurement gap and receive the positioning reference signal in the measurement gap; or, the second terminal device sends the measurement request to the first terminal device.
  • the measurement gap After receiving the information, the measurement gap can be enabled with a delay of k time units, and the positioning reference signal can be received in the measurement gap.
  • k is an integer greater than or equal to 1.
  • the second terminal device may send measurement request information to the first terminal device.
  • the first terminal device may determine the transmission resources in the resource pool corresponding to the positioning reference signal according to the measurement request information, and send the positioning reference signal to the second terminal device on the transmission resources.
  • FIG 8 is a signal transmission device provided by an embodiment of the present application.
  • the signal transmission device 800 can be applied to the first terminal device.
  • the signal transmission device 800 includes a receiving module 801 and a sending module 802; wherein,
  • the receiving module 801 is used to receive measurement request information sent by the second terminal device
  • the sending module 802 is configured to send a positioning reference signal to the second terminal device according to the measurement request information.
  • the signal transmission device 800 may be a chip, a chip module, etc.
  • the signal transmission device provided by the embodiments of the present application can perform the solutions shown in the above method embodiments.
  • the implementation principles and beneficial effects are similar and will not be described again here.
  • the measurement request information includes at least one of the following:
  • the sending module 802 is specifically used to:
  • the positioning reference signal is sent to the second terminal device.
  • the sending module 802 is specifically used to:
  • the transmission resource is determined among the candidate resources.
  • the sending module 802 is specifically used to:
  • the candidate resources are determined based on the unoccupied resources.
  • the resource pool corresponding to the positioning reference signal is the same as the resource pool corresponding to data transmission; or, the resource pool corresponding to the positioning reference signal is different from the resource pool corresponding to data transmission.
  • the sending module 802 is specifically used to:
  • the target resource is determined to be the transmission resource.
  • the number of second terminal devices is M
  • the sending module 802 is specifically used to:
  • N target terminal devices are determined among the M second terminal devices, and the number of the target resources corresponding to the target terminal device is the same as the number of the candidate resources.
  • the ratio of the total number is greater than or equal to the first threshold;
  • the transmission resources are determined according to the target resources corresponding to the N target terminal devices.
  • the sending module 802 is specifically used to:
  • the union of target resources corresponding to the N target terminal devices is determined as the transmission resource.
  • the signal transmission device provided by the embodiments of the present application can perform the solutions shown in the above method embodiments.
  • the implementation principles and beneficial effects are similar and will not be described again here.
  • FIG. 9 is a signal transmission device provided by an embodiment of the present application.
  • the signal transmission device 900 can be applied to the second terminal device.
  • the signal transmission device 900 includes a sending module 901 and a receiving module 902; wherein,
  • the sending module 901 is used to send measurement request information to the first terminal device
  • the receiving module 902 is configured to receive a positioning reference signal corresponding to the measurement request information sent by the first terminal device, where the positioning reference signal is used to determine the location of the first terminal device.
  • the signal transmission device 900 may be a chip, a chip module, etc.
  • the signal transmission device provided by the embodiments of the present application can perform the solutions shown in the above method embodiments.
  • the implementation principles and beneficial effects are similar and will not be described again here.
  • the measurement request information includes at least one of the following:
  • the sending module 901 is specifically used to:
  • the measurement request information is sent to the first terminal device in a unicast, multicast or broadcast manner.
  • the receiving module 902 is specifically used to:
  • the positioning reference signal is received through resources in a resource pool corresponding to data transmission.
  • the signal transmission device provided by the embodiments of the present application can perform the solutions shown in the above method embodiments.
  • the implementation principles and beneficial effects are similar and will not be described again here.
  • Figure 10 is a schematic diagram of the hardware structure of the signal transmission device provided by this application.
  • the signal transmission device 1000 may include: a processor 1001 and a memory 1002, where the processor 1001 and the memory 1002 can communicate; for example, the processor 1001 and the memory 1002 communicate through a communication bus 1003, and the memory 1002 is used to store program instructions, and the processor 1001 is used to call the program instructions in the memory to execute the signal transmission method shown in any of the above method embodiments.
  • the signal transmission device 1000 may also include a communication interface, and the communication interface may include a transmitter and/or a receiver.
  • the above-mentioned processor can be a central processing unit (Central Processing Unit, CPU), or other general-purpose processor, digital signal processor (Digital Signal Processor, DSP), Application Specific Integrated Circuit (ASIC), etc.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in this application can be directly implemented by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program.
  • the computer program When executed by a computer, it implements the steps executed by the first terminal device in any of the above method embodiments.
  • the signal transmission method has similar implementation principles and technical effects and will not be described in detail here.
  • Embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program.
  • the computer program When executed by a computer, it implements the steps executed by the second terminal device in any of the above method embodiments.
  • the signal transmission method has similar implementation principles and technical effects and will not be described in detail here.
  • Embodiments of the present application also provide a computer program product, including a computer program.
  • the computer program When the computer program is executed by a computer, it implements the signal transmission method executed by the first terminal device in any of the above method embodiments. Its implementation principles and technical effects are similar. , will not be described in detail here.
  • Embodiments of the present application also provide a computer program product, including a computer program.
  • the computer program When the computer program is executed by a computer, it implements the signal transmission method executed by the second terminal device in any of the above method embodiments. Its implementation principles and technical effects are similar. , will not be described in detail here.
  • the aforementioned program can be stored in a readable memory.
  • the steps including the above method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disk (English: optical disc) and any combination thereof.
  • Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general-purpose computer, special-purpose computer, embedded processor or other programmable terminal device to produce a machine, such that instructions executed by the processing unit of the computer or other programmable terminal device produce for implementation A function specified in a process or processes in a flowchart and/or in a box or boxes in a block diagram capable device.
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable terminal device to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture that includes instruction means, the instruction means Implements the functionality specified in a process or processes in a flow diagram and/or in a block or blocks in a block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable terminal device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the instructions to be executed on the computer or other programmable device
  • steps for implementing the functionality specified in a process or processes in a flow diagram and/or in a block or blocks in a block diagram are also be loaded onto a computer or other programmable terminal device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the instructions to be executed on the computer or other programmable device.
  • the term “including” and its variations may refer to non-limiting inclusion; the term “or” and its variations may refer to “and/or”.
  • the terms “first”, “second”, etc. in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
  • “plurality” means two or more.
  • “And/or” describes the relationship between related objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character “/" generally indicates that the related objects are in an "or” relationship.

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Abstract

本申请实施例提供一种信号传输方法、装置及设备，该方法包括：第二终端设备向第一终端设备发送测量请求信息；第一终端设备接收第二终端设备发送的测量请求信息；第一终端设备根据所述测量请求信息，向所述第二终端设备发送定位参考信号，所述定位参考信号用于确定所述第二终端设备的位置。从而实现了直通链路中定位参考信号传输资源的配置，使得直通链路中可以传输定位参考信号。

Description

信号传输方法、装置及设备
本申请要求于2022年6月17日提交中国专利局、申请号为202210688697.0、申请名称为“信号传输方法、装置及设备”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
本申请实施例涉及通信技术领域，尤其涉及一种信号传输方法、装置及设备。
背景技术
目前，终端设备(user equipment，UE)和网络设备之间的通信链路支持相关定位参考信号的传输。例如，下行链路(downlink，DL)中，每个网络设备都配置有专用的下行定位参考信号(positioning reference signal，PRS)资源，网络设备可以通过PRS资源向终端设备发送PRS；上行链路(uplink，UL)中，每个终端设备都配置有专用的上行探测参考信号(sounding reference signal，SRS)资源，终端设备可以通过SRS资源向网络设备发送SRS。
然而，终端设备与终端设备之间的直通链路(sidelink，SL)目前不支持定位参考信号的传输。未来终端设备与终端设备之间的直通链路支持PRS传输，终端设备如何配置定位参考信号传输资源，以实现直通链路中定位参考信号的传输是亟待解决的技术问题。
发明内容
本申请提供一种信号传输方法、装置及设备，实现了直通链路中参考信号传输资源的配置。
第一方面，本申请提供一种信号传输方法，应用于第一终端设备，所述方法包括：
接收第二终端设备发送的测量请求信息；
根据所述测量请求信息，向所述第二终端设备发送定位参考信号。
一种可能的实现方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
一种可能的实现方式中，所述根据所述测量请求信息，向所述第二终端设备发送定位参考信号，包括：
根据所述测量请求信息，确定传输资源；
在所述传输资源上，向所述第二终端设备发送所述定位参考信号。
一种可能的实现方式中，所述根据所述测量请求信息，确定传输资源，包括：
在所述定位参考信号对应的资源池中确定待选资源；
根据所述测量请求信息，在所述待选资源中确定所述传输资源。
一种可能的实现方式中，所述在所述定位参考信号对应的资源池中确定待选资源，包括：
在参考信号对应的资源池中，根据在所述定位参考信号对应的资源池的资源感知窗内的资源感知结果，确定未被占用资源；
根据所述未被占用资源，确定所述待选资源。
一种可能的实现方式中，所述定位参考信号对应的资源池与数据传输对应的资源池相同；或者，所述定位参考信号对应的资源池与数据传输对应的资源池不同。
一种可能的实现方式中，所述根据所述测量请求信息，在所述待选资源中确定所述传输资源，包括：
在所述待选资源中确定目标资源，所述目标资源与所述测量间隙重叠；
在所述目标资源的数量与所述待选资源的总数量的比值大于或等于预设阈值时，将所述目标资源确定为所述传输资源。
一种可能的实现方式中，所述第二终端设备的数量为M个；所述根据所述测量请求信息，在所述待选资源中确定所述传输资源，包括：
在所述待选资源中确定每个第二终端设备对应的目标资源，所述目标资源与所述第二终端设备对应的所述测量间隙重叠；
根据每个第二终端设备对应的所述目标资源的数量，在M个第二终端设备中确定N个目标终端设备，所述目标终端设备对应的所述目标资源的数量 与所述待选资源的总数量的比值大于或等于第一阈值；
若所述N与所述M的比值大于或等于第二阈值，根据所述N个目标终端设备对应的目标资源，确定所述传输资源。
一种可能的实现方式中，所述根据所述N个目标终端设备对应的目标资源，确定所述传输资源，包括：
将所述N个目标终端设备对应的目标资源的交集，确定为所述传输资源；或者，
将所述N个目标终端设备对应的目标资源的并集，确定为所述传输资源。
第二方面，本申请提供一种信号传输方法，应用于第二终端设备，所述方法包括：
向第一终端设备发送测量请求信息；
接收所述第一终端设备发送的所述测量请求信息对应的定位参考信号，所述定位参考信号用于确定所述第一终端设备的位置。
一种可能的实现方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
一种可能的实现方式中，所述向第一终端设备发送测量请求信息，包括：
通过单播、组播或广播的方式向所述第一终端设备发送所述测量请求信息。
一种可能的实现方式中，所述接收所述第一终端备发送的所述测量请求信息对应的定位参考信号，包括：
通过所述定位参考信号对应的资源池中的资源接收所述定位参考信号；或者，
通过数据传输对应的资源池中的资源接收所述定位参考信号。
第三方面，本申请提供一种信号传输装置，应用于第一终端设备中，包括接收模块和发送模块；其中，
所述接收模块，用于接收第二终端设备发送的测量请求信息；
所述发送模块，用于根据所述测量请求信息，向所述第二终端设备发送定位参考信号。
在一种可能的实施方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
在一种可能的实施方式中，所述发送模块具体用于：
根据所述测量请求信息，确定传输资源；
在所述传输资源上，向所述第二终端设备发送所述定位参考信号。
在一种可能的实施方式中，所述发送模块具体用于：
在所述定位参考信号对应的资源池中确定待选资源；
根据所述测量请求信息，在所述待选资源中确定所述传输资源。
在一种可能的实施方式中，所述发送模块具体用于：
在参考信号对应的资源池中，根据在所述定位参考信号对应的资源池的资源感知窗内的资源感知结果，确定未被占用资源；
根据所述未被占用资源，确定所述待选资源。
在一种可能的实施方式中，所述定位参考信号对应的资源池与数据传输对应的资源池相同；或者，所述定位参考信号对应的资源池与数据传输对应的资源池不同。
在一种可能的实施方式中，所述发送模块具体用于：
在所述待选资源中确定目标资源，所述目标资源与所述测量间隙重叠；
在所述目标资源的数量与所述待选资源的总数量的比值大于或等于预设阈值时，将所述目标资源确定为所述传输资源。
在一种可能的实施方式中，所述第二终端设备的数量为M个，所述发送模块具体用于：
在所述待选资源中确定每个第二终端设备对应的目标资源，所述目标资源与所述第二终端设备对应的所述测量间隙重叠；
根据每个第二终端设备对应的所述目标资源的数量，在M个第二终端设备中确定N个目标终端设备，所述目标终端设备对应的所述目标资源的数量与所述待选资源的总数量的比值大于或等于第一阈值；
若所述N与所述M的比值大于或等于第二阈值，根据所述N个目标终端设备对应的目标资源，确定所述传输资源。
在一种可能的实施方式中，所述发送模块具体用于：
将所述N个目标终端设备对应的目标资源的交集，确定为所述传输资源； 或者，
将所述N个目标终端设备对应的目标资源的并集，确定为所述传输资源。
第四方面，本申请提供一种信号传输装置，应用于第二终端设备，包括发送模块和接收模块；其中，
所述发送模块，用于向第一终端设备发送测量请求信息；
所述接收模块，用于接收所述第一终端设备发送的所述测量请求信息对应的定位参考信号，所述定位参考信号用于确定所述第一终端设备的位置。
在一种可能的实施方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
在一种可能的实施方式中，所述发送模块具体用于：
通过单播、组播或广播的方式向所述第一终端设备发送所述测量请求信息。
在一种可能的实施方式中，所述接收模块具体用于：
通过所述定位参考信号对应的资源池中的资源接收所述定位参考信号；或者，
通过数据传输对应的资源池中的资源接收所述定位参考信号。
第五方面，本申请提供一种信号传输设备，包括：处理器，以及与所述处理器通信连接的存储器；
所述存储器存储有计算机程序；
所述处理器执行所述计算机程序，以实现如第一方面任一项所述的方法。
第六方面，本申请提供一种信号传输设备，包括：处理器，以及与所述处理器通信连接的存储器；
所述存储器存储有计算机程序；
所述处理器执行所述计算机程序，以实现如第二方面任一项所述的方法。
第七方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，所述计算机程序被计算机执行时实现如第一方面任一项所述的方法。
第八方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，所述计算机程序被计算机执行时实现如第二方面 任一项所述的方法。
第九方面，本申请提供一种计算机程序产品，包括计算机程序，所述计算机程序被计算机执行时实现如第一方面任一项所述的方法。
第十方面，本申请提供一种计算机程序产品，包括计算机程序，所述计算机程序被计算机执行时实现如第二方面任一项所述的方法。
本申请提供的信号传输方法、装置及设备，第二终端设备可以根据自身的定位需求以及资源预留情况生成测量请求信息，并可以向第一终端设备发送测量请求信息。第一终端设备可以根据测量请求信息，在第二终端设备的测量间隙向第二终端设备发送定位参考信号，以协助第二终端设备进行定位。通过上述方法，可以实现直通链路中定位参考信号的传输。
附图说明
图1为本申请实施例提供的一种资源池示意图；
图2为本申请实施例提供的一种终端设备自主资源选择的示意图；
图3A为本申请实施例提供的一种通信系统架构的示意图；
图3B为本申请实施例提供的另一种通信系统架构的示意图；
图3C为本申请实施例提供的又一种通信系统架构的示意图；
图4为本申请实施例提供的一种PRS资源的配置结构；
图5为本申请实施例提供的一种信号传输方法的流程示意图；
图6为本申请实施例提供的测量间隙的示意图；
图7为本申请实施例提供的另一种信号传输方法的流程示意图；
图8为本申请实施例提供的一种信号传输装置；
图9为本申请实施例提供的一种信号传输装置；
图10为本申请提供的信号传输设备的硬件结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所 有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
本申请涉及移动通信技术，为便于本申请实施例的理解，首先对本申请涉及的相关通信技术进行详细说明。
1)资源池：
如图1所示，图1为本申请实施例提供的一种资源池示意图。请参见图1，资源池中时域的粒度为时隙(slot)，频域的粒度为数据传输子信道(subchannel)。每个数据传输子信道包含m个资源块(Resource Block，RB)，m是高层配置的。进行传输资源选择时，终端设备可以根据数据包的大小，确定需要L个数据传输子信道进行传输，并在资源池中的某个时隙上确定连续的L个数据传输子信道作为传输资源。例如，图1中为L＝3的一个传输资源。每个传输资源上会同时传输物理辅链路控制信道(Physical Sidelink Control Channel，PSCCH)和物理辅链路共享信道(Physical Sidelink Share Channel，PSSCH)，也就是说，每次传输都会包含PSCCH和PSSCH。PSCCH用于承载辅链路控制信息(Sidelink Control Inforation，SCI)。PSSCH用于承载传输数据。SCI可以包括当前传输资源的时频域位置信息以及后面预留的传输资源的时频域位置信息，还可以包括解码PSSCH中的一些参数。在传输资源中，PSCCH的频域起始位置和PSSCH的频域起始位置相同，当终端设备检测到PSCCH时，就可以获取当前PSSCH的频域起始位置。
2)资源分配模式2a(mode2a)：
模式2a中，终端设备可以基于感知的资源选择方式，在资源池中自己选择直通链路传输资源，而无需基站参与资源调度。
如图2所示，图2为本申请实施例提供的一种终端设备自主资源选择的示意图。请参见图2，UE4在n时刻触发了资源选择，(n-T0，n-Tproc，0)为资源感知窗口，(n+T1，n+T2)为资源选择窗口。UE4可以在资源感知窗口 内对其他终端设备占用的资源进行资源感知。在时刻n，UE4进行资源选择时，根据资源感知窗口内的感知结果，在资源选择窗的资源中排除其他终端设备的预留资源，得到待选资源集合，并在待选资源集合中确定用于传输数据的目标资源。
具体而言，正在做资源感知的UE4在资源感知窗中检测其他终端设备(例如，UE1、UE2、UE3)的PSCCH。检测到PSCCH之后，UE4可以解码PSCCH中携带的控制信息，并从控制信息中获得相应终端设备的资源指示信息和资源预留信息。UE4还可以在检测到的PSCCH上进行参考信号接收功率(Reference Signal Receiving Power，RSRP)测量，或者，UE4也可以在检测到的PSCCH对应的PSSCH的解调参考信号(Demodulation Reference Signal，DMRS)上进行RSRP测量。若UE4测量到的RSRP高于预设阈值，则排除对应的终端设备的预留资源。
示例性的，请参见图2，UE4测得UE1的RSRP高于预设阈值，UE2和UE3的RSRP低于阈值。因此，UE4在资源选择窗的资源中排除UE1的预留资源，保留UE2和UE3的预留资源。
3)单播：指一个终端设备只向另一个终端设备传输数据。
4)组播：指一个终端设备向与该终端设备在同一个组内的其他终端设备传输数据。也就是说，组播的数据只有组内的终端设备可以接收，而高层会指示哪些终端设备为一个组。
5)广播：指一个终端设备向所有其他终端设备传输数据，且所有的终端设备都可以接收广播数据。
为便于理解，下面结合图3A-图3C，对本申请实施例涉及的通信系统架构进行说明。
图3A为本申请实施例提供的一种通信系统架构的示意图。如图3A所示，该通信系统包括：网络设备、终端设备1和终端设备2。
上述通信系统架构中，终端设备1和终端设备2都在网络设备的覆盖范围内。终端设备1可以与网络设备进行通信。终端设备2可以与网络设备进行通信。终端设备1与终端设备2之间也可以进行通信。
图3B为本申请实施例提供的另一种通信系统架构的示意图。如图3B所示，该通信系统包括：网络设备、终端设备1和终端设备2。
上述通信系统架构中，终端设备1在网络设备的覆盖范围内。终端设 备1可以与网络设备进行通信。终端设备2不在网络设备的覆盖范围内。终端设备2与终端设备1之间可以进行通信。
图3C为本申请实施例提供的又一种通信系统架构的示意图。如图3C所示，该通信系统包括：网络设备、终端设备1和终端设备2。
上述通信系统架构中，终端设备1和终端设备2都不在网络设备的覆盖范围内。终端设备1与终端设备2之间可以进行通信。
上述图3A-图3C所述的通信系统架构中，终端设备可以为车辆、车载终端或者车载设备，也可以是用户终端、移动设备或者远程终端，还可以是路侧设备等。应该理解的是，网络设备、终端设备1及终端设备2的数量均可以为一个或多个，对此本申请实施例不做限定。
需要说明的是，本申请实施例描述的系统架构是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的问题，同样适用。
相关技术中，网络设备和其覆盖范围内的终端设备之间可以传输定位参考信号。传输定位参考信号时，网络设备配置有专用的定位参考信号传输资源，或者终端设备配置有专用的定位参考信号传输资源。定位参考信号传输资源用于传输定位参考信号。例如，针对PRS，网络设备配置有专用的PRS资源，PRS资源用于传输PRS；针对SRS，终端设备配置有专用的SRS资源，SRS资源用于传输SRS。
下面，以PRS为例，结合图4对PRS资源的配置结构进行说明。
图4为本申请实施例提供的一种PRS资源的配置结构。请参见图4，一个定位频率层可以包括多个发送接收点(transmit receive point，TRP)，例如，TRP1、TRP2……TRPN。TRP可以为网络设备。一个TRP可以对应多个PRS资源集，例如，PRS资源集1、PRS资源集2……PRS资源集N。一个PRS资源集里可以包括多个PRS资源，例如，PRS资源1、PRS资源2……PRS资源N。针对任意一个TRP，TRP可以通过自身配置的PRS资源向终端设备发送PRS。
然而，在直通链路中，终端设备与终端设备之间不支持定位参考信号的传输，且直通链路中的传输资源较为紧张，很难给每个终端设备配置专用的定位参考信号传输资源。当终端设备不在网络设备的覆盖范围内时，终端设 备无法进行定位。
为了解决上述技术问题，本申请实施例中，终端设备可以通过资源感知的方式在资源池中确定参考信号传输资源，以实现直通链路中定位参考信号的传输。通过上述方法，一个终端设备可以向另一个终端设备发送定位参考信号，以辅助另一个终端设备进行定位。
下面，通过具体实施例对本申请所示的技术方案进行说明。需要说明的是，下面几个实施例可以独立存在，也可以相互结合，对于相同或相似的内容，在不同的实施例中不再重复说明。
图5为本申请实施例提供的一种信号传输方法的流程示意图。如图5所示，本实施例的方法包括：
S501、第二终端设备向第一终端设备发送测量请求信息。
相应的，第一终端设备接收第二终端设备发送的测量请求信息。
第二终端设备可以为有定位需求的终端设备。
第一终端设备可以为辅助第二终端设备进行定位的终端设备。
本申请实施例中，第二终端设备可以根据自身的定位需求以及资源预留情况生成测量请求信息，并可以向第一终端设备发送测量请求信息。
需要说明的是，第二终端设备可以利用数据传输对应的资源池中的资源，向第一终端设备发送测量请求信息。
测量请求信息可以触发第一终端设备向第二终端设备发送定位参考信号。第二终端设备接收定位参考信号进行定位测量，基于测量结果确定第二终端的位置。
测量请求信息中可以包括，第二终端设备用于测量的测量间隙。具体而言，测量请求信息中包括如下至少一种：测量间隙的起始时域位置；测量间隙的周期；测量间隙的时长。
测量间隙可以为，第二终端设备用于接收定位参考信号的时间段。测量间隙在时域上周期性出现。
测量间隙的起始时域位置可以为，第一个测量间隙的时域起始位置。
测量间隙的时长可以为，第二终端设备接收定位参考信号的时间段的时长。
测量间隙的周期可以为，连续两个测量间隙的起始时域位置之间的时间间隔。
下面，结合图6，对测量间隙的起始时域位置、测量间隙的周期、以及测量间隙的时长进行说明。
图6为本申请实施例提供的测量间隙的示意图。请参见图6，第二终端设备的测量间隙的起始时域位置为t0；t0可以为时隙号、子帧号，或者绝对时间。第二终端设备接收定位参考信号的测量间隙的时长为s，第二终端设备测量间隙的周期为n；其中，s和n的单位可以为ms、时隙、子帧等。
本申请实施例中，第二终端设备可以通过单播、组播或广播的方式向第一终端设备发送测量请求信息。
当第二终端设备通过单播的方式向第一终端设备发送测量请求信息，则第二终端设备只向第一终端设备发送测量请求信息；当第二终端设备通过组播的方式向第一终端设备发送测量请求信息，第二终端设备在向第一终端设备发送测量请求信息的同时，还可以向同一个组内的其他终端设备发送测量请求信息；当第二终端设备通过广播的方式向第一终端设备发送测量请求信息，第二终端设备在向第一终端设备发送测量请求信息的同时，还可以向所有其他终端设备发送测量请求信息。
应该理解的是，在进行数据传输资源的选择和/或预留时，第二终端设备需要排除与测量间隙重叠的资源。
S502、第一终端设备根据测量请求信息，向第二终端设备发送定位参考信号。
相应的，第二终端设备接收第一终端设备接发送的定位参考信号。
第一终端设备可以根据测量请求信息，在测量间隙向第二终端设备发送定位参考信号，以协助第二终端设备进行定位。
本实施例中，第二终端设备可以根据自身的定位需求以及资源预留情况生成测量请求信息，并可以向第一终端设备发送测量请求信息。第一终端设备可以根据测量请求信息，在第二终端设备的测量间隙中向第二终端设备发送定位参考信号，以协助第二终端设备进行定位。通过上述方法，可以实现直通链路中定位参考信号的传输。
在上述实施例的基础上，第一终端设备向第二终端设备发送定位参考信号时，需要确定定位参考信号传输资源。下面，结合图7，对定位参考信号传输过程中，第一终端设备确定定位参考信号传输资源的方法进行说明。
图7为本申请实施例提供的另一种信号传输方法的流程示意图。如图7 所示，本实施例的方法包括：
S701、第二终端设备向第一终端设备发送测量请求信息。
本实施例中，S701的具体实现方式可以参见S501的详细描述，此处不再赘述。
S702、第一终端设备在定位参考信号对应的资源池中确定待选资源。
定位参考信号对应的资源池为，用于传输定位参考信号的资源所在的资源池。本申请实施例中，定位参考信号对应的资源池与数据传输对应的资源池相同；或者，定位参考信号对应的资源池与数据传输对应的资源池不同。
一种可能的实现方式中，定位参考信号对应的资源池与数据传输对应的资源池相同。此时，定位参考信号与数据共用传输资源池，第一终端设备可以在数据传输对应的资源池中确定待选资源。
另一种可能的实现方式中，定位参考信号对应的资源池与数据传输对应的资源池不同。此时，定位参考信号配置有专用的资源池，第一终端设备可以在定位参考信号专用资源池中确定待选资源。
应该理解的是，当定位参考信号配置有专用的资源池时，定位参考信号对应的资源池可以与数据传输对应的资源池在不同的频点上；或者，定位参考信号对应的资源池可以与数据传输对应的资源池在不同的载波信道上；或者，定位参考信号对应的资源池可以与数据传输对应的资源池在不同的部分带宽(Bandwidth Part，BWP)上。
当定位参考信号对应的资源池与数据传输对应的资源池在不同的频点上，第一终端设备需要进行射频链路的重调。即从当前数据传输的频点上重调至定位参考信号传输的频点上，并进行待选资源的确定。
当定位参考信号对应的资源池与数据传输对应的资源池在不同的载波信道上，第一终端设备需要进行载波切换。即从当前数据传输的载波上切换至定位参考信号传输的载波上，并进行待选资源的确定。
当定位参考信号对应的资源池与数据传输对应的资源池在不同的BWP上，第一终端设备需要进行BWP切换。即从当前数据传输的BWP上切换至定位参考信号传输的BWP上，并进行待选资源的确定。
待选资源为一组周期性的可用资源。确定待选资源时，第一终端设备在参考信号对应的资源池中，根据在定位参考信号对应的资源池的资源感知窗内的资源感知结果，确定未被占用资源；根据未被占用资源，确定待选资源。 具体而言，第一终端设备根据未被占用的资源进行周期性预留，可以得到待选资源。
未被占用的资源为，资源池中的可用资源。第一终端设备根据资源感知窗中的感知结果，排除资源池中被占用的资源后，资源池中其余的资源即为未被占用的资源。
S703、第一终端设备根据测量请求信息，在待选资源中确定传输资源。
传输资源为第一终端设备用于传输定位参考信号的资源。
本申请实施例中，根据第二终端设备的数量不同，在待选资源中确定传输资源至少包括如下两种情况：
情况1、第二终端设备的数量为1。即第一终端设备接收到一个第二终端设备的测量请求信息。
该种情况下，第一终端设备在待选资源中确定目标资源，目标资源与第二终端设备的测量间隙重叠；在目标资源的数量与待选资源的总数量的比值大于或等于预设阈值时，将目标资源确定为传输资源，第一终端设备利用确定的传输资源向第二终端设备发送定位参考信号。
目标资源为，与测量间隙重叠的待选资源。
具体而言，当与测量间隙重叠的待选资源的数量与待选资源的总数量的比值大于或等于预设阈值时，将上述与测量间隙重叠的待选资源确定为传输资源。
示例性的，假设第一终端设备确定的待选资源为10个周期性出现的资源、预设阈值为80％。则当8个或者8个以上的待选资源与测量间隙重叠时，将该8个与测量间隙重叠的待选资源确定为传输资源。
情况2、第二终端设备的数量为M。即第一终端设备接收到M个第二终端设备的测量请求信息。其中，M为大于或者等于2的整数。
该种情况下，在待选资源中确定每个第二终端设备对应的目标资源，目标资源与第二终端设备对应的测量间隙重叠；根据每个第二终端设备对应的目标资源的数量，在M个第二终端设备中确定N个目标终端设备，目标终端设备对应的目标资源的数量与待选资源的总数量的比值大于或等于第一阈值；若N与M的比值大于或等于第二阈值，根据N个目标终端设备对应的目标资源，确定传输资源，第一终端设备利用确定的传输资源向第二终端设备发送定位参考信号。
针对任意一个第二终端设备，目标资源为，与该第二终端设备的测量间隙重叠的待选资源。
针对任意一个第二终端设备，当该第二终端设备的目标资源的数量与待选资源的总数量的比值大于或等于第一阈值时，将该第二终端设备确定为目标终端设备。例如，假设第一阈值为80％，则当某第二终端设备的目标资源的数量与待选资源的总数量的比值大于或等于80％时，将该第二终端设备确定为目标终端设备。
针对M个第二终端设备，当目标终端设备的总数量N与M的比值大于或等于第二阈值，根据该N个目标终端设备对应的目标资源，确定传输资源。例如，假设第二阈值为60％，M为8，则当N大于或者等于5时，第一终端设备可以根据该5个目标终端设备的目标资源确定传输资源。
具体而言，第一终端设备将N个目标终端设备对应的目标资源的交集，确定为传输资源；或者，将N个目标终端设备对应的目标资源的并集，确定为传输资源。
示例性的，假设M为8，待选资源的数量为10，第一阈值为80％，第二阈值为60％。则，第一终端设备至少可以通过如下几个步骤确定传输资源：
1)分别确定该8个第二终端设备的目标资源。
2)当目标资源的数量大于或者等于8(10*80％＝8)时，将目标资源对应的第二终端设备记为目标终端设备。
3)当目标终端设备的数量大于或者等于时，确定传输资源为所有目标终端设备的目标资源的并集，或者，确定传输资源为所有目标终端设备的目标资源的交集。
S704、第一终端设备在传输资源上，向第二终端设备发送定位参考信号。
相应的，第二终端设备从第一终端设备获取定位参考信号。
当定位参考信号对应的资源池与数据传输对应的资源池为同一资源池，第二终端设备可以通过数据传输对应的资源池中的资源接收定位参考信号。当定位参考信号对应的资源池与数据传输对应的资源池为不同的资源池，第二终端设备可以通过定位参考信号对应的资源池中的资源接收定位参考信号。
应该理解的是，当定位参考信号对应的资源池与数据传输对应的资源池在不同的频点上，第二终端设备需要进行射频链路的重调。即从当前数据传输的频点上重调至定位参考信号传输的频点上，并在测量间隙中完成定位参 考信号的接收。
当定位参考信号对应的资源池与数据传输对应的资源池在不同的载波信道上，第二终端设备需要进行载波切换。即从当前数据传输的载波上切换至定位参考信号传输的载波上，并在测量间隙中完成定位参考信号的接收。
当定位参考信号对应的资源池与数据传输对应的资源池在不同的BWP上，第二终端设备需要进行BWP切换。即从当前数据传输的BWP上切换至定位参考信号传输的BWP上，并在测量间隙中完成定位参考信号的接收。
需要说明的是，第二终端设备向第一终端设备发送测量请求信息后，可以立即启用测量间隙，并在测量间隙中接收定位参考信号；或者，第二终端设备向第一终端设备发送测量请求信息后，可以延迟k个时间单位启用测量间隙，并在测量间隙中接收定位参考信号。其中，k为大于或者等于1的整数。
本实施例中，第二终端设备可以向第一终端设备发送测量请求信息。第一终端设备可以根据测量请求信息，在定位参考信号对应的资源池中确定传输资源，并在传输资源上向第二终端设备发送定位参考信号。通过上述方法，可以实现直通链路中，定位参考信号传输资源的配置，从而使得一个终端设备可以向另一个终端设备发送定位参考信号，以辅助另一个终端设备进行定位。
图8为本申请实施例提供的一种信号传输装置。请参见图8，该信号传输装置800可以应用于第一终端设备中，该信号传输装置800包括接收模块801和发送模块802；其中，
所述接收模块801，用于接收第二终端设备发送的测量请求信息；
所述发送模块802，用于根据所述测量请求信息，向所述第二终端设备发送定位参考信号。
信号传输装置800可以为芯片、芯片模组等。
本申请实施例提供的信号传输装置可以执行上述方法实施例所示的方案，其实现原理以及有益效果类似，此处不再进行赘述。
在一种可能的实施方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
在一种可能的实施方式中，所述发送模块802具体用于：
根据所述测量请求信息，确定传输资源；
在所述传输资源上，向所述第二终端设备发送所述定位参考信号。
在一种可能的实施方式中，所述发送模块802具体用于：
在所述定位参考信号对应的资源池中确定待选资源；
根据所述测量请求信息，在所述待选资源中确定所述传输资源。
在一种可能的实施方式中，所述发送模块802具体用于：
在参考信号对应的资源池中，根据在所述定位参考信号对应的资源池的资源感知窗内的资源感知结果，确定未被占用资源；
根据所述未被占用资源，确定所述待选资源。
在一种可能的实施方式中，所述定位参考信号对应的资源池与数据传输对应的资源池相同；或者，所述定位参考信号对应的资源池与数据传输对应的资源池不同。
在一种可能的实施方式中，所述发送模块802具体用于：
在所述待选资源中确定目标资源，所述目标资源与所述测量间隙重叠；
在所述目标资源的数量与所述待选资源的总数量的比值大于或等于预设阈值时，将所述目标资源确定为所述传输资源。
在一种可能的实施方式中，所述第二终端设备的数量为M个，所述发送模块802具体用于：
在所述待选资源中确定每个第二终端设备对应的目标资源，所述目标资源与所述第二终端设备对应的所述测量间隙重叠；
根据每个第二终端设备对应的所述目标资源的数量，在M个第二终端设备中确定N个目标终端设备，所述目标终端设备对应的所述目标资源的数量与所述待选资源的总数量的比值大于或等于第一阈值；
若所述N与所述M的比值大于或等于第二阈值，根据所述N个目标终端设备对应的目标资源，确定所述传输资源。
在一种可能的实施方式中，所述发送模块802具体用于：
将所述N个目标终端设备对应的目标资源的交集，确定为所述传输资源；或者，
将所述N个目标终端设备对应的目标资源的并集，确定为所述传输资源。
本申请实施例提供的信号传输装置可以执行上述方法实施例所示的方案，其实现原理以及有益效果类似，此处不再进行赘述。
图9为本申请实施例提供的一种信号传输装置。请参见图9，该信号传输装置900可以应用于第二终端设备，该信号传输装置900包括发送模块901和接收模块902；其中，
所述发送模块901，用于向第一终端设备发送测量请求信息；
所述接收模块902，用于接收所述第一终端设备发送的所述测量请求信息对应的定位参考信号，所述定位参考信号用于确定所述第一终端设备的位置。
信号传输装置900可以为芯片、芯片模组等。
本申请实施例提供的信号传输装置可以执行上述方法实施例所示的方案，其实现原理以及有益效果类似，此处不再进行赘述。
在一种可能的实施方式中，所述测量请求信息中包括如下至少一种：
测量间隙的起始时域位置；
测量间隙的周期；
测量间隙的时长。
在一种可能的实施方式中，所述发送模块901具体用于：
通过单播、组播或广播的方式向所述第一终端设备发送所述测量请求信息。
在一种可能的实施方式中，所述接收模块902具体用于：
通过所述定位参考信号对应的资源池中的资源接收所述定位参考信号；或者，
通过数据传输对应的资源池中的资源接收所述定位参考信号。
本申请实施例提供的信号传输装置可以执行上述方法实施例所示的方案，其实现原理以及有益效果类似，此处不再进行赘述。
图10为本申请提供的信号传输设备的硬件结构示意图。请参见图10，该信号传输设备1000可以包括：处理器1001和存储器1002，其中，处理器1001和存储器1002可以通信；示例性的，处理器1001和存储器1002通过通信总线1003通信，所述存储器1002用于存储程序指令，所述处理器1001用于调用存储器中的程序指令执行上述任意方法实施例所示的信号传输方法。
可选的，信号传输设备1000还可以包括通信接口，通信接口可以包括发送器和/或接收器。
可选的，上述处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、 专用集成电路(Application Specific Integrated Circuit，ASIC)等。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，或者用处理器中的硬件及软件模块组合执行完成。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被计算机执行时，实现如上任一方法实施例中由第一终端设备执行的信号传输方法，其实现原理和技术效果类似，此处不作赘述。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被计算机执行时，实现如上任一方法实施例中由第二终端设备执行的信号传输方法，其实现原理和技术效果类似，此处不作赘述。
本申请实施例还提供一种计算机程序产品，包括计算机程序，所述计算机程序被计算机执行时实现如上任一方法实施例中由第一终端设备执行的信号传输方法，其实现原理和技术效果类似，此处不作赘述。
本申请实施例还提供一种计算机程序产品，包括计算机程序，所述计算机程序被计算机执行时实现如上任一方法实施例中由第二终端设备执行的信号传输方法，其实现原理和技术效果类似，此处不作赘述。
实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一可读取存储器中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储器(存储介质)包括：只读存储器(英文：read-only memory，缩写：ROM)、RAM、快闪存储器、硬盘、固态硬盘、磁带(英文：magnetic tape)、软盘(英文：floppy disk)、光盘(英文：optical disc)及其任意组合。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程终端设备的处理单元以产生一个机器，使得通过计算机或其他可编程终端设备的处理单元执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功 能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程终端设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程终端设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
在本申请中，术语“包括”及其变形可以指非限制性的包括；术语“或”及其变形可以指“和/或”。本申请中术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。本申请中，“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这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。

Claims (18)

  1. 一种信号传输方法，其特征在于，应用于第一终端设备，所述方法包括：
    接收第二终端设备发送的测量请求信息；
    根据所述测量请求信息，向所述第二终端设备发送定位参考信号。
  2. 根据权利要求1所述的方法，其特征在于，所述测量请求信息中包括如下至少一种：
    测量间隙的起始时域位置；
    测量间隙的周期；
    测量间隙的时长。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述测量请求信息，向所述第二终端设备发送定位参考信号，包括：
    根据所述测量请求信息，确定传输资源；
    在所述传输资源上，向所述第二终端设备发送所述定位参考信号。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述测量请求信息，确定传输资源，包括：
    在所述定位参考信号对应的资源池中确定待选资源；
    根据所述测量请求信息，在所述待选资源中确定所述传输资源。
  5. 根据权利要求4所述的方法，其特征在于，所述在所述定位参考信号对应的资源池中确定待选资源，包括：
    在参考信号对应的资源池中，根据所述定位参考信号对应的资源池的资源感知窗内的资源感知结果，确定未被占用资源；
    根据所述未被占用资源，确定所述待选资源。
  6. 根据权利要求5所述的方法，其特征在于，
    所述定位参考信号对应的资源池与数据传输对应的资源池相同；或者，
    所述定位参考信号对应的资源池与数据传输对应的资源池不同。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述根据所述测量请求信息，在所述待选资源中确定所述传输资源，包括：
    在所述待选资源中确定目标资源，所述目标资源与所述测量间隙重叠；
    在所述目标资源的数量与所述待选资源的总数量的比值大于或等于预设 阈值时，将所述目标资源确定为所述传输资源。
  8. 根据权利要求1-6任一项所述的方法，其特征在于，所述第二终端设备的数量为M个；所述根据所述测量请求信息，在所述待选资源中确定所述传输资源，包括：
    在所述待选资源中确定每个第二终端设备对应的目标资源，所述目标资源与所述第二终端设备对应的所述测量间隙重叠；
    根据每个第二终端设备对应的所述目标资源的数量，在M个第二终端设备中确定N个目标终端设备，所述目标终端设备对应的所述目标资源的数量与所述待选资源的总数量的比值大于或等于第一阈值；
    若所述N与所述M的比值大于或等于第二阈值，根据所述N个目标终端设备对应的目标资源，确定所述传输资源。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述N个目标终端设备对应的目标资源，确定所述传输资源，包括：
    将所述N个目标终端设备对应的目标资源的交集，确定为所述传输资源；或者，
    将所述N个目标终端设备对应的目标资源的并集，确定为所述传输资源。
  10. 一种信号传输方法，其特征在于，应用于第二终端设备，所述方法包括：
    向第一终端设备发送测量请求信息；
    接收所述第一终端设备发送的所述测量请求信息对应的定位参考信号，所述定位参考信号用于确定所述第二终端设备的位置。
  11. 根据权利要求10所述的方法，其特征在于，所述测量请求信息中包括如下至少一种：
    测量间隙的起始时域位置；
    测量间隙的周期；
    测量间隙的时长。
  12. 根据权利要求10或11所述的方法，其特征在于，所述向第一终端设备发送测量请求信息，包括：
    通过单播、组播或广播的方式向所述第一终端设备发送所述测量请求信息。
  13. 根据权利要求10-12任一项所述的方法，其特征在于，所述接收所述 第一终端备发送的所述测量请求信息对应的定位参考信号，包括：
    通过所述定位参考信号对应的资源池中的资源接收所述定位参考信号；或者，
    通过数据传输对应的资源池中的资源接收所述定位参考信号。
  14. 一种信号传输装置，其特征在于，应用于第一终端设备中，包括接收模块和发送模块；其中，
    所述接收模块，用于接收第二终端设备发送的测量请求信息；
    所述发送模块，用于根据所述测量请求信息，向所述第二终端设备发送定位参考信号。
  15. 一种信号传输装置，其特征在于，应用于第二终端设备，包括发送模块和接收模块；其中，
    所述发送模块，用于向第一终端设备发送测量请求信息；
    所述接收模块，用于接收所述第一终端设备发送的所述测量请求信息对应的定位参考信号，所述定位参考信号用于确定所述第一终端设备的位置。
  16. 一种信号传输设备，其特征在于，包括：处理器，以及与所述处理器通信连接的存储器；
    所述存储器存储有计算机程序；
    所述处理器执行所述计算机程序，以实现如权利要求1至9中任一项所述的方法，或者，实现如权利要求10至13中任一项所述的方法。
  17. 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中存储有计算机程序，所述计算机程序被计算机执行时实现如权利要求1至9中任一项所述的方法，或者，实现如权利要求10至13中任一项所述的方法。
  18. 一种计算机程序产品，其特征在于，包括计算机程序，所述计算机程序被计算机执行时实现如权利要求1至9中任一项所述的方法，或者，实现如权利要求10至13中任一项所述的方法。
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