WO2023207863A1 - 直通链路定位参考信号的发送方法、终端定位方法及装置 - Google Patents

直通链路定位参考信号的发送方法、终端定位方法及装置 Download PDF

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Publication number
WO2023207863A1
WO2023207863A1 PCT/CN2023/090138 CN2023090138W WO2023207863A1 WO 2023207863 A1 WO2023207863 A1 WO 2023207863A1 CN 2023090138 W CN2023090138 W CN 2023090138W WO 2023207863 A1 WO2023207863 A1 WO 2023207863A1
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WIPO (PCT)
Prior art keywords
terminal
sequence
prs
positioning
time slot
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PCT/CN2023/090138
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English (en)
French (fr)
Inventor
任晓涛
达人
任斌
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大唐移动通信设备有限公司
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Publication of WO2023207863A1 publication Critical patent/WO2023207863A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • H04L5/0048—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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present disclosure relates to the field of communication technology, and specifically to a method for transmitting a direct link positioning reference signal, a terminal positioning method and a device.
  • the related New Radio (NR) positioning technology can define downlink positioning reference signals and uplink positioning through the air interface between the base station and the terminal. Positioning reference signal to achieve terminal positioning.
  • 5G 5th Generation Mobile Communication Technology
  • NR New Radio
  • a sidelink positioning reference signal (S-PRS) between terminals can be introduced, so that the terminal can achieve positioning without relying on the base station.
  • S-PRS sidelink positioning reference signal
  • the present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent.
  • the purpose of this disclosure is to propose a method for transmitting a direct link positioning reference signal, a terminal positioning method and a device, so as to achieve interference cancellation between sequences used in different S-PRS transmissions and avoid S-PRS
  • the mutual interference between them optimizes the transmission and application method of S-PRS, and improves the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS.
  • the method for transmitting a direct link positioning reference signal proposed by the embodiment of the first aspect of the present disclosure is applicable to the first terminal and includes: generating a first sequence, and obtaining the direct link positioning reference signal S-PRS according to the first sequence; Send the S-PRS.
  • the corresponding S-PRS is obtained according to the first sequence and is sent to the corresponding second terminal.
  • the first terminal obtains different S-PRSs, avoiding mutual interference between S-PRSs sent in a multi-terminal scenario, and reducing the risk between S-PRSs.
  • the collision probability is optimized, the S-PRS transmission and application method is optimized, and the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS is improved.
  • the terminal positioning method proposed by the embodiment of the second aspect of the present disclosure is applicable to the second terminal and includes: receiving a direct link positioning reference signal S-PRS sent by the first terminal, wherein the S-PRS includes a first sequence; according to The S-PRS calculates positioning measurement results and sends the positioning measurement results to the first terminal or positioning server.
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and sends it to the third terminal.
  • a terminal or positioning server performs calculations by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal calculates the first sequence in the S-PRS to obtain the corresponding calculation result, and the first terminal or the positioning server calculates the calculation result to determine the location information of the first terminal. It realizes terminal positioning in a scenario that does not rely on base stations. Different S-PRS carry different first sequences, which reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes the terminal Positioning method.
  • the device for sending a direct link positioning reference signal proposed by the third embodiment of the present disclosure is suitable for a first terminal and includes: a generating module for generating a first sequence and obtaining a direct link positioning reference according to the first sequence.
  • Signal S-PRS for generating a first sequence and obtaining a direct link positioning reference according to the first sequence.
  • sending module used to send the S-PRS.
  • the device for transmitting a direct link positioning reference signal proposed in the third aspect of the present disclosure after generating the first sequence, obtains the corresponding S-PRS according to the first sequence and sends it to the corresponding second terminal.
  • the first terminal by generating different first sequences, obtains different S-PRSs, avoiding mutual interference between S-PRSs sent in a multi-terminal scenario, and reducing the risk between S-PRSs.
  • the collision probability is optimized, the S-PRS transmission and application method is optimized, and the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS is improved.
  • the terminal positioning device proposed in the fourth embodiment of the present disclosure is suitable for a second terminal and includes: a receiving module for receiving the direct link positioning reference signal S-PRS sent by the first terminal, wherein the S-PRS includes The first sequence; a calculation module, configured to calculate positioning measurement results according to the S-PRS, and send the positioning measurement results to the first terminal or positioning server.
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and sends it to the third terminal.
  • a terminal or positioning server performs calculations by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal responds to the first sequence in the S-PRS Calculation is performed to obtain the corresponding calculation results, and the first terminal or the positioning server solves the calculation results to determine the location information of the first terminal, realizing terminal positioning in a scenario that does not rely on base stations.
  • Different S-PRS carry Having different first sequences reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes the terminal positioning method.
  • the device for transmitting a direct link positioning reference signal proposed by the embodiment of the fifth aspect of the present disclosure is suitable for the first terminal and includes: a memory, a transceiver, and a processor: the memory is used to store the computer program; the transceiver is used to Transmitting and receiving data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: generate a first sequence, and obtain the direct link positioning reference signal S-PRS according to the first sequence ;Send the S-PRS.
  • the device for transmitting a direct link positioning reference signal proposed in the fifth aspect of the present disclosure after generating the first sequence, obtains the corresponding S-PRS according to the first sequence and sends it to the corresponding second terminal.
  • the first terminal by generating different first sequences, obtains different S-PRSs, avoiding mutual interference between S-PRSs sent in a multi-terminal scenario, and reducing the risk between S-PRSs.
  • the collision probability is optimized, the S-PRS transmission and application method is optimized, and the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS is improved.
  • the terminal positioning device proposed in the embodiment of the sixth aspect is disclosed and is suitable for a second terminal, including: a memory, a transceiver, and a processor: the memory is used to store computer programs; the transceiver is used to send and receive under the control of the processor data; a processor, configured to read the computer program in the memory and perform the following operations: receive the direct link positioning reference signal S-PRS sent by the first terminal, wherein the S-PRS includes a first sequence; according to The S-PRS calculates positioning measurement results and sends the positioning measurement results to the first terminal or positioning server.
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and sends it to the third terminal.
  • a terminal or positioning server performs calculations by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal calculates the first sequence in the S-PRS to obtain the corresponding calculation result, and the first terminal or the positioning server calculates the calculation result to determine the location information of the first terminal. It realizes terminal positioning in a scenario that does not rely on base stations. Different S-PRS carry different first sequences, which reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes the terminal Positioning method.
  • a processor-readable storage medium proposed by an embodiment of the seventh aspect of the present disclosure stores a computer program, and the computer program is used to cause the processor to execute:
  • the first embodiment of the present disclosure proposes Method for transmitting direct link positioning reference signals.
  • the processor-readable storage medium proposed in the embodiment of the seventh aspect of the present disclosure after generating the first sequence, obtains the corresponding S-PRS according to the first sequence and sends it to the corresponding second terminal.
  • the first terminal by generating different first sequences, obtains different S-PRSs, avoiding mutual interference between S-PRSs sent in a multi-terminal scenario, and reducing the risk between S-PRSs.
  • the collision probability is optimized, the S-PRS transmission and application method is optimized, and the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS is improved.
  • a processor-readable storage medium is proposed in an embodiment of the eighth aspect of the present disclosure.
  • the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute:
  • a second embodiment of the disclosure proposes terminal positioning method.
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and converts it It is sent to the first terminal or the positioning server, and is solved by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal calculates the first sequence in the S-PRS to obtain the corresponding calculation result
  • the first terminal or the positioning server calculates the calculation result to determine the location information of the first terminal. It realizes terminal positioning in a scenario that does not rely on base stations. Different S-PRS carry different first sequences, which reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes the terminal Positioning method.
  • the ninth embodiment of the present disclosure provides a computer program product, which includes a computer program. When executed by a processor, the computer program implements the method for transmitting a through-link positioning reference signal as proposed in the first embodiment of the present disclosure.
  • An embodiment of the tenth aspect of the present disclosure provides a computer program product, including a computer program. When executed by a processor, the computer program implements the terminal positioning method proposed in the second embodiment of the present disclosure.
  • An eleventh aspect embodiment of the present disclosure provides a computer program.
  • the computer program includes a computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute the pass-through method proposed in the first aspect embodiment of the present disclosure. Method for sending link positioning reference signals.
  • the twelfth aspect of the present disclosure provides a computer program.
  • the computer program includes computer program code.
  • Figure 1 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to an embodiment of the present disclosure
  • Figure 2 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure
  • Figure 3 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure
  • Figure 4 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure
  • Figure 5 is a schematic flowchart of a terminal positioning method according to an embodiment of the present disclosure.
  • Figure 6 is a schematic structural diagram of a device for transmitting a direct link positioning reference signal according to an embodiment of the present disclosure
  • Figure 7 is a schematic structural diagram of a terminal positioning device according to an embodiment of the present disclosure.
  • Figure 8 is a schematic structural diagram of a device for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure.
  • Figure 9 is a schematic structural diagram of a terminal positioning device according to another embodiment of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations.
  • the character "/” generally indicates that the related objects are in an "or” relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • This disclosure is precisely to solve the technical problem in related technologies that the sequences used for S-PRS transmission collide, causing mutual interference between S-PRS and reducing the terminal positioning accuracy, and provides a direct link positioning reference signal.
  • the sending method allows the terminal to obtain different S-PRS by generating different sequences, avoiding mutual interference between S-PRS sent in a multi-terminal scenario, reducing the probability of collision between S-PRS, and optimizing S-PRS.
  • the sending and application method of PRS improves the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS Universal mobile telecommunication system
  • WiMAX microwave access
  • 5G New Radio, NR 5G New Radio
  • EPS Evolved Packet System
  • 5GS 5G system
  • EPS Evolved Packet System
  • 5GS 5G system
  • Figure 1 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to an embodiment of the present disclosure.
  • the execution subject of the method for transmitting the direct link positioning reference signal in the embodiment of the present disclosure is a device for transmitting the direct link positioning reference signal.
  • the device can be implemented by software and/or hardware.
  • the device Can be configured in terminal equipment.
  • a terminal device refers to a communication device that can be used to transmit and receive digital signals, and the terminal device can send signals to network devices through channels.
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the names of terminal devices may also be different.
  • the terminal equipment can be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN).
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone"). "Telephone) and computers with mobile terminal devices, which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
  • Wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point.
  • remote terminal equipment remote terminal equipment
  • access terminal equipment access terminal
  • user terminal user terminal
  • user agent user agent
  • user device user device
  • the network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure.
  • network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes.
  • the centralized unit and distributed unit may also be arranged geographically separately.
  • Network equipment and terminal equipment can each use one or more antennas for multi-input multi-output (MIMO) transmission.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO,MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.
  • the method for sending the direct link positioning reference signal includes: S101-S102.
  • the first terminal can obtain the sidelink positioning reference signal (S-PRS) and send it to the corresponding second terminal.
  • S-PRS sidelink positioning reference signal
  • the first terminal is the sender of S-PRS
  • the second terminal is the receiver of S-PRS.
  • the S-PRS can carry a sequence with a setting function. Through the relevant reading and calculation of the carried sequence, the positioning information of the first terminal and/or the second terminal can be realized through the transmission of the S-PRS. of acquisition.
  • sequence carried in the S-PRS may be determined as the first sequence of the first terminal of the sender of the S-PRS.
  • multiple S-PRS carrying the same first sequence may cause mutual interference between multiple S-PRS, thereby affecting the implementation accuracy of related functions.
  • the presence of S-PRS carrying the same first sequence may affect the positioning accuracy of the first terminal.
  • the set variable parameters can be obtained, and different values can be assigned to the variable parameters, so that the first terminal can generate different first sequences corresponding to different values, and then obtain the variable parameters carrying the S-PRS with different first sequences, thereby avoiding mutual interference between multiple S-PRS.
  • the first terminal can generate element values constituting the first sequence based on the set algorithm, and define relevant attribute parameters of the first sequence, and generate the S-sent by the terminal based on the generated element values and the defined relevant attribute parameters.
  • the first sequence carried in the PRS.
  • the first sequence may be a pseudo-random sequence of a set type, or may be another sequence type that satisfies the set conditions, which is not limited here.
  • the corresponding S-PRS can be obtained according to the generated first sequence.
  • there are set communication channels between the first terminal and the second terminal such as Physical Sidelink Broadcast Channel (PSBCH) and Physical Sidelink Shared Channel (PSSCH).
  • PSBCH Physical Sidelink Broadcast Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Control Channel
  • PSFCH Physical Sidelink Feedback Channel
  • the first terminal may send the S-PRS carrying the first sequence to the corresponding second terminal based on a set channel, such as PSCCH.
  • a set channel such as PSCCH.
  • Figure 2 consists of a first terminal 1, a second terminal 2, a second terminal 3, and a second terminal 4.
  • the first terminal 1 serves as the sender of S-PRS
  • the second terminal 2, second terminal 3, and second terminal 4 serve as receivers of S-PRS.
  • the first terminal 1 based on the PSCCH between the first terminal 1 and the second terminal 2, the first terminal 1 sends S-PRS1 to the second terminal 1, based on the PSCCH between the first terminal 1 and the second terminal 3 , the first terminal 1 sends S-PRS2 to the second terminal 3, and based on the PSCCH between the first terminal 1 and the second terminal 3, the first terminal 1 sends S-PRS3 to the second terminal 4.
  • the second terminal can perform relevant reading and calculation on the received first sequence carried by the first terminal for positioning, and generate The corresponding measurement results are calculated and sent back to the first terminal.
  • the first terminal can determine its own location information based on the received measurement results returned by the second terminal.
  • the second terminal 2 reads and calculates the first sequence carried in the received S-PRS1 sent by the first terminal 1, and returns the calculated measurement result 1 to the first terminal 1. , the first terminal 1 determines the relative position information between it and the second terminal 2 based on the received measurement result 1, and then determines its own positioning information.
  • the second terminal 3 reads and calculates the first sequence carried in the received S-PRS2 sent by the first terminal 1, and calculates the The measurement result 2 is sent back to the first terminal 1.
  • the first terminal 1 determines the relative position information between itself and the second terminal 3 based on the received measurement result 2, and then determines its own positioning information.
  • the second terminal 4 reads and calculates the first sequence carried in the received S-PRS3 sent by the first terminal 1, and returns the calculated measurement result 3 to the first terminal 1.
  • the first terminal 1 receives the After obtaining the measurement result 3, the relative position information between it and the second terminal 3 is determined, and then its own positioning information is determined.
  • the corresponding S-PRS is obtained according to the first sequence and sent to the corresponding second terminal.
  • the first terminal obtains different S-PRS, avoiding mutual interference between S-PRS sent in a multi-terminal scenario, and reducing collisions between S-PRS Probability, optimizes the transmission and application method of S-PRS, and improves the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS.
  • the frequency resource corresponding to the S-PRS is used with the downlink positioning reference signal DL-PRS and/or the uplink sounding reference signal UL SRS-Pos.
  • the frequency resources are different, wherein the frequency resources include at least one of subcarriers, resource pools, bandwidth parts BWP, carriers, and frequency bands.
  • Figure 3 is a schematic flowchart of a method for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure. This method is applicable to the first terminal. As shown in Figure 3, the method includes: S301.
  • the relevant parameter information of the mapped time slot can be obtained, and the first sequence can be generated based on the obtained relevant parameter information.
  • the relevant parameter information of the time slot mapped by the first sequence may be determined as the first time slot parameter.
  • the first slot parameter may include the number of orthogonal frequency division multiplexing OFDM symbols contained in the slot mapped by the first sequence, the number of the slot mapped by the first sequence, the At least one of the numbers of OFDM symbols in the time slot.
  • the number of orthogonal frequency division multiplexing OFDM symbols contained in the time slot mapped by the first sequence can be identified as The number of the time slot mapped by the first sequence is identified as The number of OFDM symbols in the time slot mapped by the first sequence is identified as l.
  • the setting formula can be calculated according to the obtained first time slot parameter, thereby generating the first sequence carried by the S-PRS sent by the first terminal.
  • the values of elements included in the first sequence and the sequence type to which the first sequence belongs can be obtained, and then the first sequence carried in the S-PRS can be generated.
  • the first sequence generated by the first terminal may be a GOLD sequence or other sequence types that meet the set conditions, which is not limited here.
  • the formula Define the first sequence r(m), where c(2m) and c(2m+1) in this formula are defined by the pseudo-random sequence c(n), where the pseudo-random sequence c(n) is based on x 1 (n) sequence and x 2 (n) sequence generation.
  • m is a natural number.
  • the parameter c init has a corresponding calculation formula, and the corresponding calculation formula can be determined based on relevant conditions, thereby determining the value of the parameter c init .
  • this setting variable may be identified as the target parameter n ID .
  • the target parameter n ID has a corresponding value range and a corresponding threshold value.
  • the calculation can be determined based on the relationship between the two. Calculation formula corresponding to the value of parameter c init .
  • the value range of the target parameter n ID is set to n ID ⁇ 0,1,2,...,1023 ⁇ , then the threshold value corresponding to n ID is 1024.
  • n ID The value 1024 of the number of elements in the value interval is equal to the threshold value 1024 corresponding to n ID .
  • the value of parameter c init can be obtained through the following formula:
  • the value range of the target parameter n ID is set to n ID ⁇ 0,1,2,...,4095 ⁇ , then the threshold value corresponding to n ID is 1024.
  • the value 4096 of the number of elements in the value range of ID is greater than the threshold value 1024 corresponding to n ID , the value of parameter c init can be obtained through the following formula:
  • the values of ⁇ and M can be determined according to the relevant attribute parameters of the first sequence, for example, set the first
  • the sequence is a gold sequence with a length of 31 orders.
  • ⁇ is a real number and M is a positive integer.
  • the value range to which parameter n ID belongs can be obtained based on the set algorithm, and the threshold value corresponding to parameter n ID can be determined based on the set simulation method, which is not limited here.
  • N c is a positive integer, and the value of N c can be determined according to the relevant attribute parameters of the first sequence. For example, if the first sequence is set to be a gold sequence with a length of 31 orders, then in this scenario, the value of N c can be determined as 1600.
  • c(2m) and c(2m+1) according to the pseudo-random sequence c(n), and substitute the defined c(2m) and c(2m+1) into the formula , and then generates the first sequence r(m) carried in the S-PRS sent by the terminal.
  • m is a natural number.
  • the method for transmitting the direct link positioning reference signal proposed by the embodiment of the present disclosure implements the definition of the first sequence by setting a formula, where the parameter sequence in the setting formula is defined by a pseudo-random sequence.
  • different first sequences are generated based on a set pseudo-random sequence, which avoids the duplication of first sequences generated by different terminals in a multi-terminal scenario, and realizes interference elimination and interference between the first sequences carried by S-PRS.
  • interference randomization which reduces the degree of interference and collision probability between S-PRS sent in multi-terminal scenarios, optimizes the transmission and application methods of S-PRS, and thereby improves terminal positioning based on S-PRS. terminal positioning accuracy.
  • the value of the target parameter n ID can be obtained according to the method shown below:
  • the first terminal can send S-PRS to multiple second terminals at the same time.
  • the first terminal can generate different first sequences according to different values of the parameter n ID , and then obtain the S-PRS carrying the different first sequences. S-PRS.
  • parameter n ID can be randomly configured or determined by setting an algorithm.
  • n ID may be determined based on preconfiguration information or configuration information.
  • the location of the terminal may not be covered by the base station.
  • the n ID corresponding to the first sequence carried on the S-PRS can be obtained from the preconfiguration information or configuration information corresponding to the first terminal.
  • the first terminal in the process of generating the first sequence, can randomly assign a value to n ID through preconfiguration information or configuration information. According to the value of n ID , the corresponding first sequence is generated, and then the corresponding S-PRS is obtained.
  • n ID corresponding to the first sequence carried by different S-PRS are different.
  • Figure 4 is a multi-terminal scenario composed of the first terminal A1, the first terminal A2, the first terminal A3 and the second terminal B.
  • the first terminal A1, the first terminal A2, the first terminal A3 and the second terminal B One terminal A3 sends S-PRS to the second terminal B at the same time.
  • n ID n ID ⁇ 0,1,2,...,1023 ⁇ .
  • the first terminal A1 can determine that the random value of the corresponding n ID is 129 through preconfiguration information or configuration information, and then generate the corresponding first sequence 1, thereby obtaining the S-PRS1 sent by the first terminal A1.
  • the first terminal A2 can determine that the corresponding n ID random value is 67 through preconfiguration information or configuration information, and then generate the corresponding first sequence 2, thereby obtaining the S-PRS2 sent by the first terminal A2.
  • the first terminal A3 can determine that the corresponding n ID random value is 805 through preconfiguration information or configuration information, and then generate the corresponding first sequence 3, thereby obtaining the S-PRS3 sent by the first terminal A3.
  • the first terminal A1 sends S-PRS1 to the second terminal B
  • the first terminal A2 sends S-PRS2 to the second terminal B
  • the first terminal A3 sends S-PRS3 to the second terminal B.
  • S-PRS1, S-PRS2 and S-PRS3 obtained based on different n ID values enable the first terminal A1, the first terminal A2 and the first terminal A3 and the second terminal B to send S-PRS1, S-PRS2 and S-PRS3.
  • the interference randomization between PRS1, S-PRS2 and S-PRS3 is realized, and the interference randomization between S-PRS in multi-terminal scenarios is realized.
  • n ID may be determined according to the identification information of the S-PRS.
  • the S-PRS generated by the first terminal has set identification information, and different S-PRSs have different identification information.
  • n ID can be assigned a value according to the identification information of the S-PRS, so that the first terminal can generate different first sequences according to different values of n ID , thereby obtaining S-PRS carrying different first sequences.
  • the setting can determine the S-PRS identification information sent by the first terminal A1 to the second terminal B as S-PRS1, and the S-PRS identification information sent by the first terminal A2 to the second terminal B as S-PRS2.
  • the S-PRS identification information sent by the first terminal A3 to the second terminal B is determined to be S-PRS3.
  • n ID corresponding to the first sequence 1 carried by S-PRS1 1
  • n ID carried by S-PRS2 The n ID corresponding to the first sequence 2 of S-PRS3 is assigned a value of 2
  • the n ID corresponding to the first sequence 3 carried by S-PRS3 is assigned a value of 3.
  • the first terminal A1 can generate the first sequence 1 corresponding to when n ID is assigned a value of 1, and then obtain the corresponding S-PRS1 and send it to the second terminal B.
  • the first terminal A2 can generate an n ID assigned a value of The first sequence 2 corresponding to n ID is 2, and then obtain the corresponding S-PRS2 and send it to the second terminal B.
  • the first terminal A3 can generate the first sequence 3 corresponding to when n ID is assigned to 3, and then obtain the corresponding S-PRS2. S-PRS3 and send it to the second terminal B.
  • the S-PRS1, S-PRS2 and S-PRS3 obtained based on different n ID values enable the first terminal A1, the first terminal A2 and the first terminal A3 to send the S-PRS1, S- Interference randomization is implemented between PRS2 and S-PRS3.
  • n ID may be determined according to the identification information of the first terminal and/or the identification information of the second terminal.
  • the identification information of the first terminal and/or the second terminal has identification uniqueness. Therefore, the value of n ID can be determined based on the identification information of the first terminal and/or the identification information of the second terminal.
  • the first terminal serves as the sender of S-PRS, and its identification information can be determined as the source point identifier sourceID, and the second terminal serves as the receiver of S-PRS. Its identification information can be determined as the destination ID destinationID.
  • Z 1 is a positive integer.
  • Z 1 can be determined as the value of the number of elements in the value interval corresponding to n ID . That is to say, the value interval corresponding to n ID is n ID ⁇ 0,1,2,...,4095 ⁇ In the scenario, Z 1 is 4096.
  • the source ID of the first terminal can be represented by 8 bits, with a value of 20
  • the destination ID of the second terminal can be represented by 16 bits, with a value of 4104
  • the value range corresponding to n ID is n ID ⁇ ⁇ 0,1,2 ,...,4095 ⁇ , Z 1 is 4096.
  • the first terminal can generate the corresponding first sequence based on the n ID with a value of 28, and then obtain the corresponding S-PRS and send it to the corresponding second terminal.
  • n ID is determined based on the identification information of the first terminal and/or the identification information of the second terminal, thereby realizing interference cancellation between the first sequences generated by the first terminal and avoiding interference between the S-PRS sent by the first terminal. mutual interference between them.
  • n ID may be determined based on area identification information.
  • both the first terminal and/or the second terminal have a set area to which they belong, and the area may be a geographical area divided along the geographical dimension to which the first terminal and/or the second terminal belongs, wherein the geographical area has a set area. identification information.
  • the identification information of the geographical area has unique identification. Therefore, the n ID can be assigned a value through the identification information corresponding to the geographical area to which the first terminal and/or the second terminal belongs.
  • the identification information corresponding to the geographical area to which the first terminal and/or the second terminal belongs may be determined as the area identification.
  • the area identifier of the geographical area where the first terminal and/or the second terminal is located can be obtained from the SCI of the PSCCH.
  • the PSCCH is an associated channel for the first terminal to send S-PRS.
  • n ID may be determined based on priority information.
  • the first terminal serves as the sender of S-PRS and has a set priority order.
  • the first terminal may determine its own priority based on the received priority information.
  • the priority information may include information related to the priority of data packets received by the first terminal, and may also include related efficiency requirements for terminal positioning by the first terminal and related information about the terminal positioning priority determined by accuracy requirements. information.
  • the priority of the first terminal may be determined based on the information related to the priority of the data packet received by the first terminal.
  • the priority of the first terminal may also be determined based on the information related to the terminal positioning priority received by the first terminal.
  • the priority has a corresponding digital identifier
  • the target parameter n ID can be assigned a value according to the value of the digital identifier corresponding to the priority of the first terminal.
  • the information related to the priority of the data packet received by the first terminal and the related information of the terminal positioning priority can be obtained from the SCI of the associated channel PSCCH of the S-PRS sent by the first terminal, or from the SCI of the associated channel PSCCH. Obtained from high-level signaling received by a terminal, which is not limited here.
  • n ID can be determined according to the combined method.
  • the target priority of the first terminal may be determined from the priority information.
  • the priority information received by the first terminal may include priority information of other terminals. Therefore, based on the setting identification information of the first terminal, the priority information related to the first terminal itself can be obtained from all the priority information. level information, thereby determining the target priority corresponding to the first terminal.
  • the priority corresponding to the terminal can be divided into a first candidate priority and a second candidate priority.
  • the first terminal can obtain relevant information from the first candidate priority and the relevant information of the second candidate priority. , determine its own candidate priority as its corresponding target priority.
  • the corresponding acquisition method can be determined as the first terminal acquisition method. n How to set ID .
  • zoneID is the value of the zone identifier to which the first terminal belongs, and Z 2 is a positive integer.
  • the target priority may be the second candidate priority
  • zoneID is the value of the zone identifier to which the first terminal belongs
  • n ID0 is a positive integer
  • Z 3 is a positive integer
  • n ID is n ID ⁇ 0,1,2,...,4095 ⁇
  • priority P corresponding to the first terminal is divided into 0, 1, 2, 3, 4, 5, 6 , 7 in total, there are eight levels, among which priority 0 is higher than priority 1, priority 1 is higher than priority 2, ..., priority 6 is higher than priority 7.
  • priority 0 and priority 1 can be classified as first candidate priorities, and priority 2, priority 3, priority 4, priority 5, priority 6, and priority 7 can be classified as second candidate priorities.
  • Z 2 is half of the value of the number of elements included in the value interval n ID ⁇ ⁇ 0,1,2,...,4095 ⁇ of n ID .
  • n ID0 is the middle value of the value interval n ID ⁇ ⁇ 0,1,2,...,4095 ⁇ of n ID
  • Z 3 is the value interval n ID ⁇ ⁇ 0,1, 2,...,4095 ⁇ is one-half the value of the number of elements included in .
  • n ID determines the value of n ID according to the area identification information of the first terminal and the corresponding priority information, and generate different first sequences according to the values of 90 and 2138 respectively, and then obtain the information carrying the different first sequences.
  • S-PRS determines the value of n ID according to the area identification information of the first terminal and the corresponding priority information, and generate different first sequences according to the values of 90 and 2138 respectively, and then obtain the information carrying the different first sequences.
  • n ID may be determined based on the cyclic redundancy check code CRC of the direct link control information SCI of the first terminal in the physical direct link control channel PSCCH.
  • the first terminal can determine n ID by correlating with the SCI cyclic redundancy check code CRC in the PSCCH according to the set calculation formula.
  • SCI and S-PRS on PSCCH are sent in the same time slot.
  • n ID can be determined based on the following formula:
  • the CRC is generated based on the payload in the SCI carried by the PSCCH.
  • n ID n ID according to the following formula:
  • n IDs with different values are obtained, thereby generating different first sequences, and then obtaining the S-PRS carrying different first sequences.
  • nID may be determined based on higher layer signaling.
  • the first terminal may receive high-level signaling, in which the high-level signaling may carry the scrambling code scrambling ID and the relevant information of the sequence generation configuration sequenceGenerationConfig. Therefore, the first terminal may receive the scrambling code scrambling ID or the information related to the sequence generation configuration sequenceGenerationConfig according to the high-level signaling parameters.
  • the sequence generation configuration sequenceGenerationConfig determines n ID .
  • parameter n ID can be obtained based on one of the above methods, or can be obtained based on a combination of multiple methods among the above methods, which is not limited here.
  • the method for transmitting the direct link positioning reference signal proposed in this disclosure determines the value of n ID according to different methods, so that the first terminal generates different first sequences corresponding to different n ID values, thereby achieving the acquisition of different S-PRS. , achieves interference elimination between the first sequences, avoids mutual interference between S-PRS sent in multi-terminal scenarios, reduces the collision probability between S-PRS, and optimizes the transmission and application method of S-PRS , improving the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS.
  • the second terminal can perform relevant reading calculations on the first sequence in the received S-PRS sent by the first terminal. This can be further understood in conjunction with Figure 5.
  • Figure 5 is a terminal positioning method according to an embodiment of the present disclosure. The flow diagram of the method is applicable to the second terminal. As shown in Figure 5, the method includes: S501-S502.
  • S501 Receive the direct link positioning reference signal S-PRS sent by the first terminal, where the S-PRS includes the first sequence.
  • the second terminal as the recipient of the S-PRS, has a set data receiving port, and can receive the S-PRS sent by the first terminal according to the set channel connected to the port.
  • the second terminal may be the same hardware device as the first terminal.
  • S502 Calculate the positioning measurement result according to the S-PRS, and send the positioning measurement result to the first terminal or the positioning server.
  • the second terminal can perform relevant reading results on the first sequence in the received S-PRS, thereby obtaining the corresponding positioning measurement quantity.
  • the positioning measurement quantity may include time of arrival (TOA), or other parameters that can determine the location information of the first terminal.
  • TOA time of arrival
  • the second terminal may send the obtained positioning measurements to the first terminal, according to the device configured on the first terminal.
  • a fixed calculation unit is used to calculate the positioning measurement quantity to determine the location information of the first terminal.
  • the first terminal A1 sends S-PRS1 to the second terminal B, where the S-PRS1 carries the first sequence 1.
  • the second terminal B reads and calculates the first sequence 1 in the received S-PRS1, and obtains the corresponding positioning measurement quantity TOA1.
  • the second terminal B sends it to the first terminal A1, and the related calculation unit configured on the first terminal A1 performs calculation, and then determines its own location information according to TOA1.
  • the first terminal A2 sends S-PRS2 to the second terminal B, where the S-PRS2 carries the first sequence 2.
  • the second terminal B reads and calculates the first sequence 2 in the received S-PRS2, and obtains the corresponding positioning measurement quantity TOA2.
  • the second terminal B sends it to the first terminal A2, and the related calculation unit configured on the first terminal A2 performs calculation, and then determines its own location information according to TOA2.
  • the first terminal A3 sends S-PRS3 to the second terminal B, where the S-PRS3 carries the first sequence 3.
  • the second terminal B reads and calculates the first sequence 3 in the received S-PRS3, and obtains the corresponding positioning measurement quantity TOA3.
  • the second terminal B sends it to the first terminal A3, and the related calculation unit configured on the first terminal A3 performs calculation, and then determines its own location information according to TOA3.
  • the second terminal may send the obtained positioning measurement quantity to a relevant positioning server, and use the calculation unit configured in the positioning server to calculate the positioning measurement quantity, thereby determining the location information of the first terminal.
  • the first terminal A sends an S-PRS to the second terminal B, where the S-PRS carries the first sequence.
  • the second terminal B reads and calculates the first sequence in the received S-PRS to obtain the corresponding positioning measurement amount TOA.
  • the second terminal B sends it to the positioning server, and the relevant calculation unit in the positioning server calculates the TOA, and then determines the location information of the first terminal.
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and sends it to the first terminal or
  • the positioning server performs calculations by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal calculates the first sequence in the S-PRS to obtain the corresponding calculation result
  • the first terminal or the positioning server calculates the calculation result to determine the location information of the first terminal, thereby achieving
  • different S-PRS carry different first sequences, which reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes terminal positioning. method.
  • one embodiment of the present disclosure also proposes a device for sending the direct link positioning reference signal. Since the direct link positioning reference signal proposed by the embodiment of the present disclosure is The device for transmitting the through-link positioning reference signal corresponds to the method for transmitting the through-link positioning reference signal proposed in the above-mentioned embodiments. Therefore, the above-mentioned implementation of the method for transmitting the through-link positioning reference signal is also applicable to the method proposed in the embodiments of the present disclosure. The device for transmitting the direct link positioning reference signal will not be described in detail in the following embodiments.
  • FIG. 6 is a schematic structural diagram of a device for sending a direct link positioning reference signal according to an embodiment of the present disclosure.
  • a device 600 for sending a direct link positioning reference signal is suitable for a first terminal and includes a generating module 601, a sending module Module 602, which:
  • Generating module 601 configured to generate a first sequence and obtain the direct link positioning reference signal S-PRS according to the first sequence;
  • Sending module 602 is used to send S-PRS.
  • the generation module 601 is also used to:
  • a first sequence is generated according to the first time slot parameters and the target parameters.
  • the first time slot parameter includes at least one of the following parameters: the number of orthogonal frequency division multiplexing OFDM symbols contained in the time slot mapped by the first sequence, the number of orthogonal frequency division multiplexing OFDM symbols contained in the time slot mapped by the first sequence, Number, the number of the OFDM symbol in the time slot mapped by the first sequence.
  • the generation module 601 is also used to initialize the pseudo-random sequence c(n) according to the first time slot parameter and the target parameter, where the initialization method is as follows:
  • n ID is the target parameter, is the number of orthogonal frequency division multiplexing OFDM symbols contained in each slot, is the number of the time slot mapped by the first sequence, and l is the number of the OFDM symbol in the time slot mapped by the first sequence.
  • ⁇ is a real number and M is a positive integer.
  • the generation module 601 is also used to:
  • n is a pseudo-random sequence.
  • m is a natural number.
  • the pseudo-random sequence c(n) is generated based on the x 1 (n) sequence and the x 2 (n) sequence, where:
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2, where x 2 (n) sequence
  • x 2 (n) sequence The initialization is expressed as
  • n ID is obtained in at least one of the following ways, including: determining n ID according to preconfiguration information or configuration information; determining n ID according to the identification information of S-PRS; and determining n ID according to the identification information of the first terminal. and/or the identification information of the second terminal determines n ID ; determines n ID according to the area identification information; determines n ID according to the priority information; and determines n ID according to the direct link control information SCI of the first terminal in the physical direct link control channel PSCCH.
  • the cyclic redundancy check code CRC determines n ID ; or, determines n ID according to high-level signaling.
  • the area identification information includes the area identification of the geographical area where the first terminal and/or the second terminal is located; the priority information includes the terminal positioning priority or the data packet priority.
  • the area identification information is indicated by the SCI of the PSCCH; the priority information is indicated by the SCI and/or higher layer signaling of the PSCCH; where the PSCCH is the associated channel for the first terminal to send S-PRS.
  • the frequency resources corresponding to S-PRS are different from the frequency resources used by the downlink positioning reference signal DL-PRS and/or the uplink sounding reference signal ULSRS-Pos, where the frequency resources include subcarriers, At least one of a resource pool, a bandwidth part BWP, a carrier, and a frequency band.
  • the generation module 601 is also used to determine n ID according to the CRC of the SCI of the first terminal in the PSCCH according to the following equation:
  • n ID is the target parameter, It is the decimal representation value of CRC.
  • the CRC is generated based on the payload in the SCI carried by the PSCCH.
  • the SCI on the PSCCH is sent in the same time slot as the S-PRS.
  • n ID is the target parameter
  • sourceID is the identification information of the first terminal
  • destinationID is the identification information of the second terminal
  • Z 1 is a positive integer
  • the generation module 601 is also used to determine n ID from the scrambling ID or sequence generation configuration sequenceGenerationConfig in the high-level signaling parameters.
  • the first sequence is the GOLD sequence.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit may be stored in a processor-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product.
  • the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .
  • the device for transmitting the direct link positioning reference signal proposed in the embodiment of the present disclosure after generating the first sequence, obtains the corresponding S-PRS according to the first sequence and sends it to the corresponding second terminal.
  • the first terminal by generating different first sequences, obtains different S-PRS, avoiding mutual interference between S-PRS sent in a multi-terminal scenario, and reducing collisions between S-PRS Probability, optimizes the transmission and application method of S-PRS, and improves the terminal positioning accuracy in the scenario of terminal positioning based on S-PRS.
  • one embodiment of the present disclosure also proposes a terminal positioning device. Since the terminal positioning device proposed in the embodiments of the present disclosure is different from the terminal positioning methods proposed in the above embodiments, Correspondingly, therefore, the above embodiments of the terminal positioning method are also applicable to the terminal positioning device proposed in the embodiments of the present disclosure, and will not be described in detail in the following embodiments.
  • FIG. 7 is a schematic structural diagram of a terminal positioning device according to an embodiment of the present disclosure.
  • a terminal positioning device 700 is suitable for a second terminal and includes a receiving module 701 and a computing module 702, wherein:
  • the receiving module 701 is configured to receive the direct link positioning reference signal S-PRS sent by the first terminal, where the S-PRS includes the first sequence;
  • the calculation module 702 is used to calculate the positioning measurement results according to the S-PRS, and send the positioning measurement results to the first terminal or the positioning server.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit may be stored in a processor-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product.
  • the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • the second terminal calculates the first sequence carried in the received S-PRS sent by the first terminal, obtains the corresponding positioning measurement quantity, and sends it to the first terminal or
  • the positioning server performs calculations by the relevant calculation unit therein to determine the location information of the first terminal.
  • the second terminal calculates the first sequence in the S-PRS to obtain the corresponding calculation result
  • the first terminal or the positioning server calculates the calculation result to determine the location information of the first terminal, thereby achieving
  • different S-PRS carry different first sequences, which reduces the degree of interference between S-PRS, improves the positioning accuracy of the first terminal, and optimizes terminal positioning. method.
  • Figure 8 is a schematic structural diagram of a device for transmitting a direct link positioning reference signal according to another embodiment of the present disclosure.
  • the device is suitable for a first terminal.
  • the direct link positioning reference signal sending device 800 includes a memory 801, a transceiver 802, a processor 803 and a user interface 804: the memory 801 is used to store computer programs; the transceiver 802 is used to Send and receive data under the control of processor 803; processor 803 is used to read the computer program in memory 801 and perform the following operations:
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 803 and various circuits of the memory represented by memory 801 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 802 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium.
  • the user interface 804 can also be an interface that can connect external and internal required equipment.
  • the connected equipment includes but is not limited to a small keyboard, a display, a speaker, a microphone, a joystick, etc.
  • the processor 803 is responsible for managing the bus architecture and general processing, and the memory 801 can store data used by the processor 803 when performing operations.
  • the processor 803 may be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) or CPLD (Complex Programmable Logic). Device, complex programmable logic device), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, Field Programmable Gate Array
  • CPLD Complex Programmable Logic
  • Device complex programmable logic device
  • the processor can also adopt a multi-core architecture.
  • the processor is configured to execute any method provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory.
  • the processor and memory can also be physically separated.
  • the processor 803 is also configured to generate the first sequence according to the first time slot parameter and the target parameter.
  • the first time slot parameter includes at least one of the following parameters: the number of orthogonal frequency division multiplexing OFDM symbols contained in the time slot mapped by the first sequence, the number of orthogonal frequency division multiplexing OFDM symbols contained in the time slot mapped by the first sequence, Number, the number of the OFDM symbol in the time slot mapped by the first sequence.
  • the processor 803 is also used to initialize the pseudo-random sequence c(n) according to the first time slot parameter and the target parameter, where the initialization method is as follows:
  • n ID is the target parameter, is the number of orthogonal frequency division multiplexing OFDM symbols contained in each slot, is the number of the time slot mapped by the first sequence, and l is the number of the OFDM symbol in the time slot mapped by the first sequence.
  • ⁇ is a real number and M is a positive integer.
  • the processor 803 is also used to:
  • n is a pseudo-random sequence.
  • m is a natural number.
  • the pseudo-random sequence c(n) is generated based on the x 1 (n) sequence and the x 2 (n) sequence, where:
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2, where x 2 (n) sequence
  • x 2 (n) sequence The initialization is expressed as
  • the pseudo-random sequence c(n) is defined as:
  • N c(n) (x 1 (n+N c )+x 2 (n+N c )) mod 2, where N c is a positive integer.
  • n ID is obtained in at least one of the following ways, including: determining n ID according to preconfiguration information or configuration information; determining n ID according to the identification information of S-PRS; and determining n ID according to the identification information of the first terminal. and/or the identification information of the second terminal determines n ID ; determines n ID according to the area identification information; determines n ID according to the priority information; and determines n ID according to the direct link control information SCI of the first terminal in the physical direct link control channel PSCCH.
  • the cyclic redundancy check code CRC determines n ID ; determines n ID according to high-level signaling.
  • the area identification information includes the area identification of the geographical area where the first terminal and/or the second terminal is located; the priority information includes the terminal positioning priority or the data packet priority.
  • the area identification information is indicated by the SCI of the PSCCH; the priority information is indicated by the SCI and/or higher layer signaling of the PSCCH; where the PSCCH is the associated channel for the first terminal to send S-PRS.
  • the frequency resources corresponding to S-PRS are different from the frequency resources used by the downlink positioning reference signal DL-PRS and/or the uplink sounding reference signal ULSRS-Pos, where the frequency resources include subcarriers, At least one of a resource pool, a bandwidth part BWP, a carrier, and a frequency band.
  • the processor 803 is also configured to determine n ID according to the CRC of the SCI of the first terminal in the PSCCH according to the following equation:
  • n ID is the target parameter, It is the decimal representation value of CRC.
  • the CRC is generated based on the payload in the SCI carried by the PSCCH.
  • the SCI on the PSCCH is sent in the same time slot as the S-PRS.
  • the processor 803 is also configured to determine n ID according to the identification information of the first terminal and/or the identification information of the second terminal according to the following equation:
  • n ID (sourceID+destinationID)mod Z 1 ,
  • n ID is the target parameter
  • sourceID is the identification information of the first terminal
  • destinationID is the identification information of the second terminal
  • Z 1 is a positive integer
  • the processor 803 is also used to determine n ID from the scrambling ID or sequence generation configuration sequenceGenerationConfig in the high-level signaling parameters.
  • the first sequence is the GOLD sequence.
  • Figure 9 is a schematic structural diagram of a terminal positioning device according to another embodiment of the present disclosure.
  • the device is suitable for a second terminal.
  • the terminal positioning device 900 includes a memory 901, a transceiver 902, a processor 903 and a user interface 904: the memory 901 is used to store computer programs; the transceiver 902 is used under the control of the processor 903 Send and receive data; processor 903, used to read the computer program in memory 901 and perform the following operations:
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 903 and various circuits of the memory represented by memory 901 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • the transceiver 902 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium.
  • the user interface 904 can also be an interface capable of externally connecting internal and external required equipment.
  • the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.
  • the processor 903 is responsible for managing the bus architecture and general processing, and the memory 901 can store data used by the processor 903 when performing operations.
  • the processor 903 may be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) or CPLD (Complex Programmable Logic). Device, complex programmable logic device), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array, Field Programmable Gate Array
  • CPLD Complex Programmable Logic
  • Device complex programmable logic device
  • the processor can also adopt a multi-core architecture.
  • the processor is configured to execute any method provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory.
  • the processor and memory can also be physically separated.
  • embodiments of the present disclosure propose a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute a method for transmitting a through-link positioning reference signal and /or terminal positioning method.
  • the processor-readable storage medium is a non-transitory processor-readable storage medium.
  • embodiments of the present disclosure propose a computer program product, including a computer program that, when executed by a processor, implements the method and method for transmitting a through-link positioning reference signal as proposed in the foregoing embodiments of the present disclosure. /or terminal positioning method.
  • embodiments of the present disclosure also provide a computer program, wherein the computer program includes computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute the pass-through chain as proposed in the previous embodiments of the present disclosure. method of transmitting road positioning reference signals and/or terminal positioning methods.
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
  • a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • These computer-executable instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Used to implement a process or processes in a flowchart and/or a block or blocks in a block diagram A device for the functions specified in the box.
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.
  • various parts of the present disclosure may be implemented in hardware, software, firmware, or combinations thereof.
  • various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a logic gate circuit with a logic gate circuit for implementing a logic function on a data signal.
  • Discrete logic circuits application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.
  • the program can be stored in a computer-readable storage medium.
  • the program can be stored in a computer-readable storage medium.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing module, each unit may exist physically alone, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.
  • the storage media mentioned above can be read-only memory, magnetic disks or optical disks, etc.

Abstract

提出了一种直通链路定位参考信号的发送方法、终端定位方法及装置，其中，直通链路定位参考信号的发送方法包括：生成第一序列，并根据第一序列获取直通链路定位参考信号S-PRS；发送S-PRS。

Description

直通链路定位参考信号的发送方法、终端定位方法及装置
相关申请的交叉引用
本申请基于申请号为2022104762085、申请日为2022年4月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及通信技术领域，具体涉及一种直通链路定位参考信号的发送方法、终端定位方法及装置。
背景技术
随着第五代移动通信技术(5th Generation Mobile Communication Technology，5G)通信技术的发展，相关的新空口(New Radio，NR)定位技术可以通过基站和终端之间的空口定义下行定位参考信号和上行定位参考信号，从而实现终端的定位。
相关技术中，可以引入终端与终端之间的直通链路定位参考信号(sidelink positioning reference signal，S-PRS)，从而使得终端可以不依赖于基站实现定位。
然而，相关技术中的S-PRS传输所使用的序列存在发生碰撞的可能，导致终端之间的S-PRS相互干扰程度严重，进而对终端定位的精度造成了一定程度的影响。
发明内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本公开的目的在于提出一种直通链路定位参考信号的发送方法、终端定位方法及装置，使得不同的S-PRS传输所使用的序列之间实现了干扰消除，避免了S-PRS之间的相互干扰，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
本公开第一方面实施例提出的直通链路定位参考信号的发送方法，适用于第一终端，包括：生成第一序列，并根据所述第一序列获取直通链路定位参考信号S-PRS；发送所述S-PRS。
本公开第一方面实施例提出的直通链路定位参考信号的发送方法，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开实施例中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
本公开第二方面实施例提出的终端定位方法，适用于第二终端，包括：接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
本公开第二方面实施例提出的终端定位方法，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开实施例中，由第二终端对S-PRS中的第一序列进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
本公开第三方面实施例提出的直通链路定位参考信号的发送装置，适用于第一终端，包括：生成模块，用于生成第一序列，并根据所述第一序列获取直通链路定位参考信号S-PRS；发送模块，用于发送所述S-PRS。
本公开第三方面实施例提出的直通链路定位参考信号的发送装置，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开实施例中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
本公开第四方面实施例提出的终端定位装置，适用于第二终端，包括：接收模块，用于接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；计算模块，用于根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
本公开第四方面实施例提出的终端定位装置，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开实施例中，由第二终端对S-PRS中的第一序列 进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
本公开第五方面实施例提出的直通链路定位参考信号的发送装置，适用于第一终端，包括：存储器，收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：生成第一序列，并根据所述第一序列获取直通链路定位参考信号S-PRS；发送所述S-PRS。
本公开第五方面实施例提出的直通链路定位参考信号的发送装置，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开实施例中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
公开第六方面实施例提出的终端定位装置，适用于第二终端，包括：存储器，收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
本公开第六方面实施例提出的终端定位装置，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开实施例中，由第二终端对S-PRS中的第一序列进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
本公开第七方面实施例提出的处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行：本公开第一方面实施例提出的直通链路定位参考信号的发送方法。
本公开第七方面实施例提出的处理器可读存储介质，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开实施例中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
本公开第八方面实施例提出的处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行：本公开第二方面实施例提出的终端定位方法。
本公开第八方面实施例提出的处理器可读存储介质，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开实施例中，由第二终端对S-PRS中的第一序列进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
本公开第九方面实施例提出了一种计算机程序产品，包括计算机程序，所述计算机程序在被处理器执行时实现如本公开第一方面实施例提出的直通链路定位参考信号的发送方法。
本公开第十方面实施例提出了一种计算机程序产品，包括计算机程序，所述计算机程序在被处理器执行时实现如本公开第二方面实施例提出的终端定位方法。
本公开第十一方面实施例提出了一种计算机程序，所述计算机程序包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行如本公开第一方面实施例提出的直通链路定位参考信号的发送方法。
本公开第十二方面实施例提出了一种计算机程序，所述计算机程序包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行如本公开第二方面实施例提出的终端定位方法。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1是本公开一实施例的直通链路定位参考信号的发送方法的流程示意图；
图2是本公开另一实施例的直通链路定位参考信号的发送方法的流程示意图；
图3是本公开另一实施例的直通链路定位参考信号的发送方法的流程示意图；
图4是本公开另一实施例的直通链路定位参考信号的发送方法的流程示意图；
图5是本公开一实施例的终端定位方法的流程示意图；
图6是本公开一实施例的直通链路定位参考信号的发送装置的结构示意图；
图7是本公开一实施例的终端定位装置的结构示意图；
图8是本公开另一实施例的直通链路定位参考信号的发送装置的结构示意图；
图9是本公开另一实施例的终端定位装置的结构示意图。
具体实施方式
本公开实施例中术语“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。
本公开实施例中术语“多个”是指两个或两个以上，其他量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开正是为了解决相关技术中存在的S-PRS传输所使用的序列存在碰撞，导致S-PRS之间互相干扰，降低终端定位精度的技术问题，提供了一种直通链路定位参考信号的发送方法，通过生成的不同序列，使得终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio，NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System，EPS)、5G系统(5GS)等。
图1是本公开一实施例的直通链路定位参考信号的发送方法的流程示意图。
其中，需要说明的是，本公开实施例的直通链路定位参考信号的发送方法的执行主体为直通链路定位参考信号的发送装置，该装置可以由软件和/或硬件的方式实现，该装置可以配置在终端设备中。在一些实施例中，终端设备是指可以用于对数字信号进行转送和接收的通信设备，终端设备可以通过信道向网络设备发送信号。
本公开实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同。
例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network，CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。
例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
网络设备可用于将收到的空中帧与网际协议(Internet Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。
例如，本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输，MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量，MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO，也可以是分集传输或预编码传输或波束赋形传输等。
如图1所示，该方法适用于第一终端，该直通链路定位参考信号的发送方法，包括：S101-S102。
S101，生成第一序列，并根据第一序列获取直通链路定位参考信号S-PRS。
本公开实施例中，第一终端可以获取直通链路定位参考信号(sidelink positioning reference signal，S-PRS)，并将其发送至对应的第二终端。
其中，第一终端为S-PRS的发送方，第二终端为S-PRS的接收方。
实现中，S-PRS中可以携带具有设定功能的序列，通过对携带的序列的相关读取和计算，使得通过S-PRS的发送可以实现对第一终端和/或第二终端的定位信息的获取。
其中，可以将S-PRS中携带的序列确定为S-PRS的发送方的第一终端的第一序列。
在一些场景中，对于多个携带有相同第一序列的S-PRS，存在可能造成多个S-PRS之间的相互干扰，进而对相关功能的实现精度产生影响。
比如，在进行终端定位的场景下，携带有相同第一序列的S-PRS存在可能对第一终端的定位精度产生影响。
因此，可以在生成第一序列的过程中，获取设定的变量参数，并对该部分变量参数赋值为不同的数值，使得第一终端可以生成不同数值对应的不同第一序列，进而获取携带有不同第一序列的S-PRS，从而避免多个S-PRS之间的相互干扰。
进一步地，第一终端可以基于设定算法生成组成第一序列的元素值，并对第一序列的相关属性参数进行限定，根据生成的元素值以及限定的相关属性参数，生成终端发送的S-PRS中携带的第一序列。
其中，第一序列可以是设定类型的伪随机序列，也可以是其他满足设定条件的序列类型，此处不做限定。
进一步地，可以根据生成的第一序列获取对应的S-PRS。
S102，发送S-PRS。
实现中，第一终端与第二终端之间存在设定的通信信道，比如，物理直通链路广播信道(Physical Sidelink Broadcast Channel，PSBCH)，物理直通链路共享信道(Physical Sidelink Shared Channel，PSSCH)，物理直通链路控制信道(Physical Sidelink Control Channel，PSCCH)，物理直通链路反馈信道(Physical Sidelink FeedbackChannel，PSFCH)等。
进一步地，第一终端可以基于设定的信道，比如PSCCH，将携带第一序列的S-PRS发送至对应的第二终端。
比如，如图2所示的根据第一终端发送的S-PRS实现终端定位的场景下，图2由第一终端1、第二终端2、第二终端3、第二终端4组成。
其中，第一终端1作为S-PRS的发送方，第二终端2、第二终端3、第二终端4作为S-PRS的接收方。
如图2所示，基于第一终端1和第二终端2之间的PSCCH，第一终端1将S-PRS1发送至第二终端1，基于第一终端1和第二终端3之间的PSCCH，第一终端1将S-PRS2发送至第二终端3，基于第一终端1和第二终端3之间的PSCCH，第一终端1将S-PRS3发送至第二终端4。
进一步地，在根据第一终端发送的S-PRS实现终端定位的场景下，第二终端可以对接收到的第一终端中携带的用于定位的第一序列进行相关的读取和计算，生成对应的计算测量结果，并将其返回发送至第一终端。
该场景下，第一终端可以根据接收到的第二终端返回的测量结果，实现对其自身位置信息的确定。
依然如图2所示，第二终端2对接收到的第一终端1发送的S-PRS1中携带的第一序列进行读取计算，将其计算得到的测量结果1返回发送至第一终端1，第一终端1根据接收到的测量结果1，确定其与第二终端2之间的相对位置信息，进而确定其自身的定位信息。
第二终端3对接收到的第一终端1发送的S-PRS2中携带的第一序列进行读取计算，将其计算得到的 测量结果2返回发送至第一终端1，第一终端1根据接收到的测量结果2，确定其与第二终端3之间的相对位置信息，进而确定其自身的定位信息。
第二终端4对接收到的第一终端1发送的S-PRS3中携带的第一序列进行读取计算，将其计算得到的测量结果3返回发送至第一终端1，第一终端1根据接收到的测量结果3，确定其与第二终端3之间的相对位置信息，进而确定其自身的定位信息。
本公开实施例提出的直通链路定位参考信号的发送方法，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
需要说明的是，第一终端根据第一序列获取S-PRS之后，S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号UL SRS-Pos使用的频率资源不同，其中，频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
上述实施例中，关于第一序列的生成，可结合图3进一步理解，图3是本公开另一实施例的直通链路定位参考信号的发送方法的流程示意图，该方法适用于第一终端，如图3所示，该方法包括：S301。
S301，根据第一时隙参数和目标参数，生成第一序列。
实现中，第一序列存在映射的时隙，可以获取其映射的时隙的相关参数信息，并根据获取到的相关参数信息，实现第一序列的生成。
其中，可以将第一序列映射的时隙的相关参数信息确定为第一时隙参数。
在一些实施例中，第一时隙参数可以包括，第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、第一序列映射的时隙的编号、第一序列映射的时隙内的OFDM符号的编号中的至少一种。
其中，可以将第一序列映射的时隙中包含的正交频分复用OFDM符号的数量标识为将第一序列映射的时隙的编号标识为将第一序列映射的时隙内的OFDM符号的编号标识为l。
本公开实施例中，第一序列存在相关的设定公式，可以根据获取到的第一时隙参数，对设定公式进行计算，从而生成第一终端发送的S-PRS携带的第一序列。
在一些实施例中，可以获取第一序列中包括的元素的取值，以及第一序列所属的序列类型，进而生成S-PRS中携带的第一序列。
需要说明的是，第一终端生成的第一序列可以为GOLD序列，也可以为其他满足设定条件的序列类型，此处不做限定。
在一些实施例中，可以基于公式定义第一序列r(m)，该公式中的中c(2m)和c(2m+1)由伪随机序列c(n)定义，其中，伪随机序列c(n)基于x1(n)序列和x2(n)序列生成。在一些实施例中，m为自然数。
进一步地，可以基于如下公式获取x1(n)序列：
x1(n+31)＝(x1(n+3)+x1(n))mod 2，
上述公式中，x1(n)序列初始化为x1(0)＝1，x1(n)＝0，n＝1,2,...,N，N是正整数。
相应地，基于如下公式获取x2(n)序列：
x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2，
上述公式中，x2(n)序列的初始化表示为
其中，参数cinit存在对应的计算公式，可以基于相关的条件确定对应的计算公式，从而确定参数cinit的取值。
为了实现携带有第一序列的S-PRS之间的干扰消除，可以获取参数cinit的不同取值，进而根据获取到的不同值，生成不同的第一序列。
实现中，参数cinit存在设定的取值确定算法，该算法中存在设定变量，可以通过设定的方法获取该设定变量的不同取值，从而得到参数cinit的不同取值。
在一些实施例中，可以将该设定变量标识为目标参数nID。
进一步地，目标参数nID存在对应的取值区间和对应的门限值，可以根据二者之间的关系，确定计算 参数cinit的取值对应的计算公式。
在一些实现中，设定目标参数nID的取值区间为nID∈{0,1,2,...,1023}，则nID对应的门限值为1024，该场景下，nID的取值区间内的元素数量的值1024等于nID对应的门限值1024，则可以通过如下公式获取参数cinit的取值：
上述公式中，为每个时隙中包含的正交频分复用OFDM符号的数量，为第一序列映射的时隙的编号，l为第一序列映射的时隙内的OFDM符号的编号。
在另一些实现中，设定目标参数nID的取值区间为nID∈{0,1,2,...,4095}，则nID对应的门限值为1024，该场景下，nID的取值区间内的元素数量的值4096大于nID对应的门限值1024，则可以通过如下公式获取参数cinit的取值：
上述公式中，为每个时隙中包含的正交频分复用OFDM符号的数量，为第一序列映射的时隙的编号，l为第一序列映射的时隙内的OFDM符号的编号，β和M的取值可以根据第一序列的相关属性参数确定，比如，设定第一序列为长度31阶的gold序列，则该场景下，β的取值可以为β＝222，M＝1024。
在一些实施例中，β为实数，且M为正整数。
需要说明的是，参数nID所属的取值区间可以基于设定算法获取，参数nID对应的门限值可以基于设定的仿真方法确定，此处不做限定。
进一步地，根据上述公式确定参数cinit的取值后，根据确定x2(n)序列中的元素的取值，进而根据设定公式x2(n)序列。
相应地，根据设定公式获取x1(n)序列后，根据如下公式获取伪随机序列c(n)：
c(n)＝(x1(n+Nc)+x2(n+Nc))mod 2，
其中，Nc是正整数，可以根据第一序列的相关属性参数确定Nc的取值。比如，设定第一序列为长度31阶的gold序列，则该场景下，可以将Nc的值确定为1600。
进一步地，根据伪随机序列c(n)对c(2m)和c(2m+1)进行定义，并将定义后的c(2m)和c(2m+1)代入公式中，进而生成终端发送的S-PRS中携带的第一序列r(m)。在一些实施例中，m为自然数。
本公开实施例提出的直通链路定位参考信号的发送方法，通过设定公式实现对第一序列的定义，其中，设定公式中的参数序列由伪随机序列定义。本公开中，基于设定的伪随机序列生成不同的第一序列，避免了多终端场景下不同终端生成的第一序列的重复，实现了S-PRS携带的第一序列之间的干扰消除和/或干扰随机化，降低了多终端场景下发送的S-PRS之间的干扰程度以及碰撞概率，优化了S-PRS的发送以及应用方法，进而提高了基于S-PRS进行终端定位的场景下的终端定位精度。
上述实施例中，关于目标参数nID的取值，可根据如下所示的方法获取：
在一些实现中，第一终端可以同时发送S-PRS至多个第二终端，其中，第一终端可以根据参数nID的不同取值，生成不同的第一序列，进而获取携带有不同第一序列的S-PRS。
其中，参数nID的取值可以是随机配置的，也可以通过设定算法确定。
在一些实施例中，可以根据预配置信息或配置信息确定nID。
实现中，终端所处的位置存在可能无法被基站覆盖，在该场景下，可以从第一终端对应的预配置信息或者配置信息中，得到S-PRS上携带的第一序列对应的nID。
其中，第一终端在生成第一序列的过程中，可以通过预配置信息或者配置信息，随机的为nID赋值。 根据nID的取值，生成对应的第一序列，进而获取对应的S-PRS。
需要说明的是，为了避免第一终端与第二终端之间的S-PRS被其他S-PRS干扰，不同的S-PRS携带的第一序列对应的nID的取值不同。
如图4所示，图4为第一终端A1、第一终端A2、第一终端A3以及第二终端B组成的多终端场景，在该场景下，第一终端A1、第一终端A2、第一终端A3同时向第二终端B同时发送S-PRS。
进一步地，设定，图4所示的场景下，nID的取值区间为nID∈{0,1,2,...,1023}。
其中，第一终端A1可以通过预配置信息或者配置信息确定对应的nID的随机值为129，进而生成对应的第一序列1，从而得到第一终端A1发送的S-PRS1。
相应地，第一终端A2可以通过预配置信息或者配置信息确定对应的nID随机值为67，进而生成对应的第一序列2，从而得到第一终端A2发送的S-PRS2。第一终端A3可以通过预配置信息或者配置信息确定对应的nID随机值为805，进而生成对应的第一序列3，从而得到第一终端A3发送的S-PRS3。
进一步地，第一终端A1将S-PRS1发送至第二终端B，第一终端A2将S-PRS2发送至第二终端B，第一终端A3将S-PRS3发送至第二终端B。
如图4所示，基于不同的nID的值得到的S-PRS1、S-PRS2和S-PRS3，使得第一终端A1、第一终端A2以及第一终端A3第二终端B向发送的S-PRS1、S-PRS2和S-PRS3之间实现了干扰随机化，实现了多终端场景下S-PRS之间的干扰随机化。
在一些实施例中，可以根据S-PRS的标识信息确定nID。
实现中，第一终端生成的S-PRS存在设定的标识信息，且不同的S-PRS对应的标识信息存在不同。
因此，可以根据S-PRS的标识信息对nID进行赋值，使得第一终端可以根据nID的不同取值生成不同的第一序列，从而获取携带有不同第一序列的S-PRS。
比如，设定可以将第一终端A1发送至第二终端B的S-PRS标识信息确定为S-PRS1，第一终端A2发送至第二终端B的S-PRS标识信息确定为S-PRS2，第一终端A3发送至第二终端B的S-PRS标识信息确定为S-PRS3。
设定nID的取值区间为nID∈{0,1,2,...,1023}，则可以将S-PRS1携带的第一序列1对应的nID赋值为1，S-PRS2携带的第一序列2对应的nID赋值为2，S-PRS3携带的第一序列3对应的nID赋值为3。
进一步地，第一终端A1可以生成nID赋值为1时对应的第一序列1，进而获取对应的S-PRS1，并将其发送至第二终端B，第一终端A2可以生成nID赋值为2时对应的第一序列2，进而获取对应的S-PRS2，并将其发送至第二终端B，第一终端A3可以生成nID赋值为3时对应的第一序列3，进而获取对应的S-PRS3，并将其发送至第二终端B。
基于不同的nID的值得到的S-PRS1、S-PRS2和S-PRS3，使得第一终端A1、第一终端A2、第一终端A3向第二终端B同时发送的S-PRS1、S-PRS2和S-PRS3之间实现了干扰随机化。
在一些实施例中，可以根据第一终端的标识信息和/或第二终端的标识信息确定nID。
实现中，第一终端和/或第二终端的标识信息存在标识唯一性，因此，可以根据第一终端的标识信息和/或第二终端的标识信息，确定nID的取值。
在第一终端向第二终端发送S-PRS的场景下，第一终端作为S-PRS的发送方，其标识信息可以被确定为源点标识sourceID，第二终端作为S-PRS的接收方，其标识信息可以被确定为终点标识destinationID。
在一些实施例中，可以根据如下公式进行计算，从而得到nID的取值：
nID＝(sourceID+destinationID)mod Z1，
上述公式中，Z1为正整数。其中，可以将Z1确定为nID对应的取值区间内的元素数量的值，也就是说，在nID对应的取值区间为nID∈{0,1,2,...,4095}的场景下，Z1为4096。
比如，设定第一终端的sourceID可以由8比特表示，值为20，第二终端的destinationID由16比特表示，值为4104，nID对应的取值区间为nID∈{0,1,2,...,4095}，Z1为4096。
进一步地，如下述公式所示：
nID＝(20+4104)mod Z4096＝28，
由此可知，第一终端可以基于取值为28的nID生成对应的第一序列，进而获取对应的S-PRS，并将其发送至对应的第二终端。
进一步地，基于第一终端的标识信息和/或第二终端的标识信息确定nID，实现了第一终端生成的第一序列之间的干扰消除，避免了第一终端发送的S-PRS之间的相互干扰。
在一些实施例中，可以根据区域标识信息确定nID。
实现中，第一终端和/或第二终端均存在设定的所属区域，该区域可以为第一终端和/或第二终端所属的地理维度上划分的地理区域，其中，地理区域存在设定的标识信息。
本公开实施例中，地理区域的标识信息存在唯一标识性，因此，可以通过第一终端和/或第二终端所属的地理区域对应的标识信息为nID赋值。
其中，可以将第一终端和/或第二终端所属的地理区域对应的标识信息确定为区域标识。
进一步地，可以从PSCCH的SCI中获取第一终端和/或第二终端所在地理区域的区域标识。
需要说明的是，PSCCH为第一终端发送S-PRS的关联信道。
在一些实施例中，可以根据优先级信息确定nID。
实现中，第一终端作为S-PRS的发送方，存在设定的优先级排序。其中，第一终端可以根据接收到的优先级信息，确定其自身的优先级。
在一些实施例中，优先级信息可以包括第一终端接收到的数据包优先级的相关信息，还可以包括第一终端进行终端定位的相关效率需求以及准确率需求确定的终端定位优先级的相关信息。
其中，可以根据第一终端接收到的数据包优先级的相关信息，确定的第一终端的优先级。
相应地，还可以根据第一终端接收到的终端定位优先级的相关信息，确定第一终端的优先级。
在一些实现中，优先级存在对应的数字标识，可以根据第一终端的优先级对应的数字标识的值对目标参数nID赋值。
需要说明的是，第一终端接收到的数据包优先级的相关信息，以及终端定位优先级的相关信息，可以从第一终端发送S-PRS的关联信道PSCCH的SCI中获取，也可以从第一终端接收到的高层信令中获取，此处不做限定。
为了实现对nID的准确赋值，可以将区域标识信息和优先级信息结合起来，根据结合后的方法，确定nID。
在一些实施例中，可以从优先级信息中，确定第一终端的目标优先级。
第一终端接收到的优先级信息中，存在可能包括了其他终端的优先级信息，因此，可以基于第一终端的设定标识信息，从全部的优先级信息中获取第一终端自身相关的优先级信息，进而确定第一终端对应的目标优先级。
在一些实施例中，可以将终端对应的优先级划分为第一候选优先级和第二候选优先级，第一终端可以从第一候选优先级的相关信息以及第二候选优先级的相关信息中，确定其自身所属的候选优先级，作为其对应的目标优先级。
进一步地，第一候选优先级以及第二候选优先级分别存在对应的nID的获取方法，因此，确定第一终端对应的目标优先级后，可以将其对应的获取方法确定为第一终端获取nID的设定方法。
在一些实施例中，目标优先级可以为第一候选优先级，则可以根据如下所示的公式得到nID：
nID＝(zoneID)mod Z2，
上述公式中，zoneID为第一终端所属的区域标识的值，Z2为正整数。
在一些实施例中，目标优先级可以为第二候选优先级，则可以根据如下所示的公式得到nID：
nID＝nID0+(zoneID)mod Z3，
上述公式中，zoneID为第一终端所属的区域标识的值，nID0为正整数，Z3为正整数。
下面结合示例进行进一步地解释说明：
设定，nID的取值区间为nID∈{0,1,2,...,4095}，第一终端对应的优先级P分为0、1、2、3、4、5、6、7共八个等级，其中，优先级0高于优先级1、优先级1高于优先级2、……、优先级6高于优先级7。可以将优先级0、优先级1划分为第一候选优先级，将优先级2、优先级3、优先级4、优先级5、优先级6、优先级7划分为第二候选优先级。
设定，第一终端所属的区域标识的值为2138。
在第一终端的目标优先级为第一候选优先级的场景下，可以将相关参数取值代入如下公式：
nID＝(2138)mod 2048＝90，
上述公式中，Z2为nID的取值区间nID∈{0,1,2,...,4095}中包括的元素数量的值的二分之一。
在第一终端的目标优先级为第二候选优先级的场景下，可以将相关参数取值代入如下公式：
nID＝2048+(2138)mod 2048＝2138，
上述公式中，nID0为nID的取值区间nID∈{0,1,2,...,4095}的中间值，Z3为nID的取值区间nID∈{0,1,2,...,4095}中包括的元素数量的值的二分之一。
进一步地，根据第一终端的区域标识信息以及对应的优先级信息，确定nID的取值，并分别根据90和2138的取值生成不同的第一序列，进而获取携带有不同第一序列的S-PRS。
在一些实施例中，可以根据第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定nID。
实现中，第一终端在运行的过程中，可以根据设定的计算公式，通过与PSCCH中的SCI循环冗余校验码CRC关联的方式确定nID。
其中，PSCCH上的SCI与S-PRS在同一时隙发送。
在一些实施例中，可以基于如下公式确定nID：
其中，为CRC的十进制表示数值，CRC根据PSCCH携带的SCI中的载荷Payload生成。
比如，设定第一终端在同一时隙中同时发送了S-PRS1和PSCCH1，且PSCCH1中的SCI的CRC为二进制比特序列，设定PSCCH1中的SCI的CRC为10000100011，则根据上述公式可知进而根据如下公式确定nID：
进一步地，根据与S-PRS同一时隙发送的PSCCH的SCI中的CRC，获取取值不同的nID，从而生成不同的第一序列，进而获取携带有不同第一序列的S-PRS。
在一些实施例中，可以根据高层信令确定nID。
实现中，第一终端可以接收到高层信令，其中，高层信令中可以携带扰码编码scramblingID以及序列产生配置sequenceGenerationConfig的相关信息，因此，可以根据高层信令参数中携带的扰码编码scramblingID或序列产生配置sequenceGenerationConfig确定nID。
需要说明的是，对于参数nID的取值的获取，可以基于上述其中一种方法实现，也可以基于上述方法中的多种方法组合获取，此处不做限定。
本公开提出的直通链路定位参考信号的发送方法，根据不同的方法确定nID的取值，使得第一终端生成不同nID取值对应的不同第一序列，进而实现不同S-PRS的获取，实现了第一序列之间的干扰消除，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
实现中，第二终端可以对接收到的第一终端发送的S-PRS中的第一序列进行相关的读取计算，可结合图5进一步理解，图5为本公开一实施例的终端定位方法的流程示意图，该方法适用于第二终端，如图5所示，该方法包括：S501-S502。
S501，接收第一终端发送的直通链路定位参考信号S-PRS，其中，S-PRS包括第一序列。
本公开实施例中，第二终端作为S-PRS的接收方，存在设定的数据接收端口，根据与该端口连接的设定信道，可以接收第一终端发送的S-PRS。
其中，第二终端可以为与第一终端相同的硬件设备。
S502，根据S-PRS计算定位测量结果，并将定位测量结果发送至第一终端或定位服务器。
进一步地，第二终端可以对接收到的S-PRS中的第一序列进行相关的读取结果，从而获取对应的定位测量量。
其中，定位测量量可以包括到达时间(time of arrival，TOA)，也可以包括其他可以实现确定第一终端的位置信息的参数。
在一些实施例中，第二终端可以将得到的定位测量量发送至第一终端，根据配置在第一终端上的设 定解算单元，对定位测量量进行解算，从而确定第一终端的位置信息。
比如，依然如图4所示，第一终端A1向第二终端B发送S-PRS1，其中，S-PRS1携带有第一序列1。第二终端B对接收到的S-PRS1中的第一序列1进行读取和计算，获取对应的定位测量量TOA1。
进一步地，第二终端B将其发送至第一终端A1，由第一终端A1上配置的相关解算单元进行解算，进而根据TOA1确定其自身的位置信息。
相应地，第一终端A2向第二终端B发送S-PRS2，其中，S-PRS2携带有第一序列2。第二终端B对接收到的S-PRS2中的第一序列2进行读取和计算，获取对应的定位测量量TOA2。
进一步地，第二终端B将其发送至第一终端A2，由第一终端A2上配置的相关解算单元进行解算，进而根据TOA2确定其自身的位置信息。
相应地，第一终端A3向第二终端B发送S-PRS3，其中，S-PRS3携带有第一序列3。第二终端B对接收到的S-PRS3中的第一序列3进行读取和计算，获取对应的定位测量量TOA3。
进一步地，第二终端B将其发送至第一终端A3，由第一终端A3上配置的相关解算单元进行解算，进而根据TOA3确定其自身的位置信息。
在另一些实施例中，第二终端可以将得到的定位测量量发送至相关的定位服务器，通过定位服务器中配置的解算单元对定位测量量进行解算，从而确定第一终端的位置信息。
比如，设定第一终端A向第二终端B发送S-PRS，其中，S-PRS携带有第一序列。第二终端B对接收到的S-PRS中的第一序列进行读取和计算，获取对应的定位测量量TOA。
进一步地，第二终端B将其发送至定位服务器中，由定位服务器中的相关解算单元对TOA进行解算，进而确定第一终端的位置信息。
本公开实施例提出的终端定位方法，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开中，由第二终端对S-PRS中的第一序列进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
与上述几种实施例提出的直通链路定位参考信号的发送方法相对应，本公开的一个实施例还提出了一种直通链路定位参考信号的发送装置，由于本公开实施例提出的直通链路定位参考信号的发送装置与上述几种实施例提出的直通链路定位参考信号的发送方法相对应，因此上述直通链路定位参考信号的发送方法的实施方式也适用于本公开实施例提出的直通链路定位参考信号的发送装置，在下述实施例中不再详细描述。
图6是本公开一实施例的直通链路定位参考信号的发送装置结构示意图，如图6所示，直通链路定位参考信号的发送装置600，适用于第一终端，包括生成模块601、发送模块602，其中：
生成模块601，用于生成第一序列，并根据第一序列获取直通链路定位参考信号S-PRS；
发送模块602，用于发送S-PRS。
本公开实施例中，生成模块601，还用于：
根据第一时隙参数和目标参数，生成第一序列。
本公开实施例中，第一时隙参数，包括以下参数中的至少一项：第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、第一序列映射的时隙的编号、第一序列映射的时隙内的OFDM符号的编号。
本公开实施例中，生成模块601，还用于：根据第一时隙参数和目标参数，对伪随机序列c(n)进行初始化，其中，初始化方法如下：
或者，
其中，nID为目标参数，为每个时隙中包含的正交频分复用OFDM符号的数量，为第一序列映射的时隙的编号，l为第一序列映射的时隙内的OFDM符号的编号。
在一些实施例中，β为实数，且M为正整数。
本公开实施例中，生成模块601，还用于：
基于定义第一序列r(m)；其中，c(n)为伪随机序列。在一些实施例中，m为自然数。
本公开实施例中，伪随机序列c(n)基于x1(n)序列和x2(n)序列生成，其中：
x1(n+31)＝(x1(n+3)+x1(n))mod 2，其中，x1(n)序列初始化为x1(0)＝1，x1(n)＝0，n＝1,2,...,N，N是正整数；
x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2，其中，x2(n)序列的初始化表示为
伪随机序列c(n)定义为：c(n)＝(x1(n+Nc)+x2(n+Nc))mod 2，其中Nc是正整数。
本公开实施例中，nID采用如下方式中的至少一种方式获取，包括：根据预配置信息或配置信息确定nID；根据S-PRS的标识信息确定nID；根据第一终端的标识信息和/或第二终端的标识信息确定nID；根据区域标识信息确定nID；根据优先级信息确定nID；根据第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定nID；或，根据高层信令确定nID。
本公开实施例中，区域标识信息，包括第一终端和/或第二终端所在地理区域的区域标识；优先级信息，包括终端定位优先级或数据包优先级。
本公开实施例中，区域标识信息，由PSCCH的SCI指示；优先级信息，由PSCCH的SCI和/或高层信令指示；其中，PSCCH为第一终端发送S-PRS的关联信道。
本公开实施例中，S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号ULSRS-Pos使用的频率资源不同，其中，频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
本公开实施例中，生成模块601，还用于按照以下等式，根据第一终端在PSCCH中的SCI的CRC来确定nID：
其中，nID为目标参数，为CRC的十进制表示数值，CRC根据PSCCH携带的SCI中的载荷Payload生成，PSCCH上的SCI与S-PRS在同一时隙发送。
本公开实施例中，生成模块601，还用于按照以下等式，根据第一终端的标识信息和/或第二终端的标识信息来确定nID：
nID＝(sourceID+destinationID)mod Z1，
其中，nID为目标参数，sourceID为第一终端的标识信息，destinationID为第二终端的标识信息，Z1为正整数。
本公开实施例中，生成模块601，还用于：从优先级信息中，确定第一终端的目标优先级；响应于目标优先级为第一候选优先级，则根据nID＝(zoneID)mod Z2得到nID，其中，nID为目标参数，Z2为正整数；响应于目标优先级为第二候选优先级，则根据nID＝nID0+(zoneID)mod Z3得到nID，其中，nID为目标参数，nID0为正整数，Z3为正整数。
本公开实施例中，生成模块601，还用于：从高层信令参数中的扰码编码scramblingID或序列产生配置sequenceGenerationConfig中，确定nID。
本公开实施例中，第一序列为GOLD序列。
需要说明的是，本公开实施例中对单元的划分是示意性的，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。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。
基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本公开实施例提出的直通链路定位参考信号的发送装置，生成第一序列后，根据第一序列获取对应的S-PRS，并将其发送至对应的第二终端。本公开中，通过生成不同的第一序列，使得第一终端获取到不同的S-PRS，避免了多终端场景下发送的S-PRS之间的相互干扰，降低了S-PRS之间的碰撞概率，优化了S-PRS的发送以及应用方法，提高了基于S-PRS进行终端定位的场景下的终端定位精度。
与上述几种实施例提出的终端定位方法相对应，本公开的一个实施例还提出了一种终端定位装置，由于本公开实施例提出的终端定位装置与上述几种实施例提出的终端定位方法相对应，因此上述终端定位方法的实施方式也适用于本公开实施例提出的终端定位装置，在下述实施例中不再详细描述。
图7是本公开一实施例的终端定位装置结构示意图，如图7所示，终端定位装置700，适用于第二终端，包括接收模块701、计算模块702，其中：
接收模块701，用于接收第一终端发送的直通链路定位参考信号S-PRS，其中，S-PRS包括第一序列；
计算模块702，用于根据S-PRS计算定位测量结果，并将定位测量结果发送至第一终端或定位服务器。
需要说明的是，本公开实施例中对单元的划分是示意性的，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。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。
基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本公开实施例提出的终端定位装置，第二终端对接收到的第一终端发送的S-PRS中携带的第一序列进行计算，获取对应的定位测量量，并将其发送至第一终端或者定位服务器，由其中的相关解算单元进行解算，从而确定第一终端的位置信息。本公开中，由第二终端对S-PRS中的第一序列进行计算获取对应的计算结果，由第一终端或者定位服务器对计算结果进行解算，从而确定第一终端的位置信息，实现了不依赖基站的场景下的终端定位，不同的S-PRS中携带有不同的第一序列，降低了S-PRS之间的干扰程度，使得第一终端的定位精度得以提高，优化了终端定位的方法。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图8是本公开另一实施例的直通链路定位参考信号的发送装置的结构示意图，该装置适用于第一终端。
如图8所示，该直通链路定位参考信号的发送装置800，包括存储器801，收发机802，处理器803及用户接口804：存储器801，用于存储计算机程序；收发机802，用于在处理器803的控制下收发数据；处理器803，用于读取存储器801中的计算机程序并执行以下操作：
生成第一序列，并根据第一序列获取直通链路定位参考信号S-PRS；
发送S-PRS。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器803代表的一个或多个处理器和存储器801代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机802可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口804还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器803负责管理总线架构和通常的处理，存储器801可以存储处理器803在执行操作时所使用的数据。
在一些实施例中，处理器803可以是CPU(中央处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可编程逻辑器件)，处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一方法。处理器与存储器也可以物理上分开布置。
本公开实施例中，处理器803，还用于：根据第一时隙参数和目标参数，生成第一序列。
本公开实施例中，第一时隙参数，包括以下参数中的至少一项：第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、第一序列映射的时隙的编号、第一序列映射的时隙内的OFDM符号的编号。
本公开实施例中，处理器803，还用于：根据第一时隙参数和目标参数，对伪随机序列c(n)进行初始化，其中，初始化方法如下：
或者，
其中，nID为目标参数，为每个时隙中包含的正交频分复用OFDM符号的数量，为第一序列映射的时隙的编号，l为第一序列映射的时隙内的OFDM符号的编号。在一些实施例中，β为实数，且M为正整数。
本公开实施例中，处理器803，还用于：
基于定义第一序列r(m)；其中，c(n)为伪随机序列。在一些实施例中，m为自然数。
本公开实施例中，伪随机序列c(n)基于x1(n)序列和x2(n)序列生成，其中：
x1(n+31)＝(x1(n+3)+x1(n))mod 2，其中，x1(n)序列初始化为x1(0)＝1，x1(n)＝0，n＝1,2,...,N，N是正整数；
x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2，其中，x2(n)序列的初始化表示为
伪随机序列c(n)定义为：
c(n)＝(x1(n+Nc)+x2(n+Nc))mod 2，其中Nc是正整数。
本公开实施例中，nID采用如下方式中的至少一种方式获取，包括：根据预配置信息或配置信息确定nID；根据S-PRS的标识信息确定nID；根据第一终端的标识信息和/或第二终端的标识信息确定nID；根据区域标识信息确定nID；根据优先级信息确定nID；根据第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定nID；根据高层信令确定nID。
本公开实施例中，区域标识信息，包括第一终端和/或第二终端所在地理区域的区域标识；优先级信息，包括终端定位优先级或数据包优先级。
本公开实施例中，区域标识信息，由PSCCH的SCI指示；优先级信息，由PSCCH的SCI和/或高层信令指示；其中，PSCCH为第一终端发送S-PRS的关联信道。
本公开实施例中，S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号ULSRS-Pos使用的频率资源不同，其中，频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
本公开实施例中，处理器803，还用于按照以下等式，根据第一终端在PSCCH中的SCI的CRC来确定nID：
其中，nID为目标参数，为CRC的十进制表示数值，CRC根据PSCCH携带的SCI中的载荷Payload生成，PSCCH上的SCI与S-PRS在同一时隙发送。
本公开实施例中，处理器803，还用于按照以下等式，根据第一终端的标识信息和/或第二终端的标识信息来确定nID：
nID＝(sourceID+destinationID)mod Z1，
其中，nID为目标参数，sourceID为第一终端的标识信息，destinationID为第二终端的标识信息，Z1为正整数。
本公开实施例中，处理器803，还用于：从优先级信息中，确定第一终端的目标优先级；响应于目标 优先级为第一候选优先级，则根据nID＝(zoneID)mod Z2得到nID，其中，nID为目标参数，Z2为正整数；响应于目标优先级为第二候选优先级，则根据nID＝nID0+(zoneID)mod Z3得到nID，其中，nID为目标参数，nID0为正整数，Z3为正整数。
本公开实施例中，处理器803，还用于：从高层信令参数中的扰码编码scramblingID或序列产生配置sequenceGenerationConfig中，确定nID。
本公开实施例中，第一序列为GOLD序列。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图9是本公开另一实施例的终端定位装置的结构示意图，该装置适用于第二终端。
如图9所示，该终端定位装置900，包括存储器901，收发机902，处理器903及用户接口904：存储器901，用于存储计算机程序；收发机902，用于在处理器903的控制下收发数据；处理器903，用于读取存储器901中的计算机程序并执行以下操作：
接收第一终端发送的直通链路定位参考信号S-PRS，其中，S-PRS包括第一序列；
根据S-PRS计算定位测量结果，并将定位测量结果发送至第一终端或定位服务器。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器903代表的一个或多个处理器和存储器901代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口904还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器903负责管理总线架构和通常的处理，存储器901可以存储处理器903在执行操作时所使用的数据。
在一些实施例中，处理器903可以是CPU(中央处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可编程逻辑器件)，处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一方法。处理器与存储器也可以物理上分开布置。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
为了实现上述实施例，本公开实施例提出了一种处理器可读存储介质，处理器可读存储介质存储有计算机程序，计算机程序用于使处理器执行直通链路定位参考信号的发送方法和/或终端定位方法。在一些实施例中，该处理器可读存储介质是非临时性处理机可读存储介质。
为了实现上述实施例，本公开实施例提出了一种计算机程序产品，包括计算机程序，该计算机程序在被处理器执行时实现如本公开前述实施例提出的直通链路定位参考信号的发送方法和/或终端定位方法。
为了实现上述实施例，本公开实施例还提出一种计算机程序，其中该计算机程序包括计算机程序代码，当该计算机程序代码在计算机上运行时，使得计算机执行如本公开前述实施例提出的直通链路定位参考信号的发送方法和/或终端定位方法。
需要说明的是，前述对直通链路定位参考信号的发送方法和/或终端定位方法实施例的解释说明也适用于上述实施例中的装置、非瞬时处理器可读存储介质、计算机程序产品和计算机程序，此处不再赘述。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、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。应理解可由计算机可执行指令实现流程图和/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。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器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。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器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。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，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公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。
需要说明的是，在本公开的描述中，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。此外，在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本公开的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本公开的实施例所属技术领域的技术人员所理解。
应当理解，本公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本公开各个实施例中的各功能单元可以集成在一个处理模块中，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模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本公开的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。
本公开所有实施例均可以单独被执行，也可以与其他实施例相结合被执行，均视为本公开要求的保护范围。

Claims (40)

  1. 一种直通链路定位参考信号的发送方法，适用于第一终端，其中，包括：
    生成第一序列，并根据所述第一序列获取直通链路定位参考信号S-PRS；
    发送所述S-PRS。
  2. 根据权利要求1所述的方法，其中，所述生成第一序列，包括：
    根据第一时隙参数和目标参数，生成所述第一序列。
  3. 根据权利要求2所述的方法，其中，所述第一时隙参数，包括以下参数中的至少一项：
    所述第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、所述第一序列映射的时隙的编号、所述第一序列映射的时隙内的所述OFDM符号的编号。
  4. 根据权利要求3所述的方法，其中，所述根据所述第一时隙参数和目标参数，生成所述第一序列，包括：
    根据所述第一时隙参数和所述目标参数，对伪随机序列c(n)进行初始化，其中，初始化方法如下：
    或者，
    其中，nID为所述目标参数，为每个时隙中包含的正交频分复用OFDM符号的数量，为所述第一序列映射的时隙的编号，l为所述第一序列映射的时隙内的所述OFDM符号的编号，
    其中β为实数，且M为正整数。
  5. 根据权利要求1至4中任一项所述的方法，其中，所述生成第一序列，包括：
    基于定义所述第一序列r(m)；
    其中，c(2m)和c(2m+1)由所述伪随机序列c(n)定义，其中m为自然数。
  6. 根据权利要求5所述的方法，其中，所述伪随机序列c(n)基于x1(n)序列和x2(n)序列生成，其中：
    x1(n+31)＝(x1(n+3)+x1(n))mod 2，其中，所述x1(n)序列初始化为x1(0)＝1，x1(n)＝0，n＝1,2,...,N，N是正整数；
    x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod 2，其中，所述x2(n)序列的初始化表示为
    所述伪随机序列c(n)定义为：
    c(n)＝(x1(n+Nc)+x2(n+Nc))mod 2，其中Nc是正整数。
  7. 根据权利要求6所述的方法，其中，所述nID采用如下方式中的至少一种方式确定，包括：
    根据预配置信息或配置信息确定所述nID；
    根据所述S-PRS的标识信息确定所述nID；
    根据所述第一终端的标识信息和/或第二终端的标识信息确定所述nID；
    根据区域标识信息确定所述nID；
    根据优先级信息确定所述nID；
    根据所述第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定所述nID；
    根据高层信令确定所述nID。
  8. 根据权利要求7所述的方法，其中，
    所述区域标识信息，包括所述第一终端和/或所述第二终端所在地理区域的区域标识；
    所述优先级信息，包括终端定位优先级或数据包优先级。
  9. 根据权利要求7或8所述的方法，其中，
    所述区域标识信息，由所述PSCCH的所述SCI指示；
    所述优先级信息，由所述PSCCH的所述SCI和/或高层信令指示；
    其中，所述PSCCH为所述第一终端发送所述S-PRS的关联信道。
  10. 根据权利要求1-9中任一项所述的方法，其中，所述S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号UL SRS-Pos使用的频率资源不同，其中，所述频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
  11. 根据权利要求7所述的方法，其中，所述根据所述第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定所述nID，包括：
    其中，所述nID为所述目标参数，所述为所述CRC的十进制表示数值，所述CRC根据所述PSCCH携带的SCI中的载荷Payload生成，所述PSCCH上的SCI与所述S-PRS在同一时隙发送。
  12. 根据权利要求7所述的方法，其中，所述根据所述第一终端的标识信息和/或所述第二终端的标识信息确定所述nID，包括：
    nID＝(sourceID+destinationID)mod Z1
    其中，所述nID为所述目标参数，所述sourceID为所述第一终端的标识信息，所述destinationID为所述第二终端的标识信息，所述Z1为正整数。
  13. 根据权利要求7所述的方法，其中，所述根据优先级信息确定所述nID，包括：
    从所述优先级信息中，确定所述第一终端的目标优先级；
    响应于所述目标优先级为第一候选优先级，则根据
    nID＝(zoneID)mod Z2得到所述nID，其中，所述nID为所述目标参数，所述Z2为正整数；
    响应于所述目标优先级为第二候选优先级，则根据
    nID＝nID0+(zoneID)mod Z3得到所述nID，其中，所述nID为所述目标参数，所述nID0为正整数，所述Z3为正整数。
  14. 根据权利要求7所述的方法，其中，所述根据高层信令确定所述nID，包括：
    从高层信令参数中的扰码编码scramblingID或序列产生配置sequenceGenerationConfig中，确定所述nID。
  15. 根据权利要求1-9和11-14中任一项所述的方法，其中，所述第一序列为GOLD序列。
  16. 一种终端定位方法，所述方法适用于第二终端，其中，所述方法包括：
    接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；
    根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
  17. 一种直通链路定位参考信号的发送装置，适用于第一终端，其中，包括：
    生成模块，用于生成第一序列，并根据所述第一序列获取直通链路定位参考信号S-PRS；
    发送模块，用于发送所述S-PRS。
  18. 根据权利要求17所述的装置，其中，所述生成模块，还用于：
    根据所述第一时隙参数和目标参数，生成所述第一序列。
  19. 根据权利要求18所述的装置，其中，所述第一时隙参数，包括以下参数中的至少一项：
    所述第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、所述第一序列映射的时隙的编号、所述第一序列映射的时隙内的所述OFDM符号的编号。
  20. 根据权利要求19所述的装置，其中，所述生成模块，还用于：
    根据所述第一时隙参数和所述目标参数，对伪随机序列c(n)进行初始化，其中，初始化方法如下：
    或者，
    其中，nID为所述目标参数，为每个时隙中包含的正交频分复用OFDM符号的数量，为所述第一序列映射的时隙的编号，l为所述第一序列映射的时隙内的所述OFDM符号的编号，
    其中β为实数，且M为正整数。
  21. 根据权利要求20所述的装置，其中，所述nID采用如下方式中的至少一种方式获取，包括：
    根据预配置信息或配置信息确定所述nID；
    根据所述S-PRS的标识信息确定所述nID；
    根据所述第一终端的标识信息和/或第二终端的标识信息确定所述nID；
    根据区域标识信息确定所述nID；
    根据优先级信息确定所述nID；
    根据所述第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定所述nID；
    根据高层信令确定所述nID。
  22. 根据权利要求21所述的装置，其中，
    所述区域标识信息，包括所述第一终端和/或所述第二终端所在地理区域的区域标识；
    所述优先级信息，包括终端定位优先级或数据包优先级。
  23. 根据权利要求21或22所述的装置，其中，
    所述区域标识信息，由所述PSCCH的所述SCI指示；
    所述优先级信息，由所述PSCCH的所述SCI和/或高层信令指示；
    其中，所述PSCCH为所述第一终端发送所述S-PRS的关联信道。
  24. 根据权利要求17-23中任一项所述的装置，其中，所述S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号UL SRS-Pos使用的频率资源不同，其中，所述频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
  25. 一种终端定位装置，所述装置适用于第二终端，其中，所述装置包括：
    接收模块，用于接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；
    计算模块，用于根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
  26. 一种直通链路定位参考信号的发送装置，所述装置适用于第一终端，其中，包括存储器，收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    生成第一序列，并根据所述第一序列获取生直通链路定位参考信号S-PRS；
    发送所述S-PRS。
  27. 根据权利要求26所述的装置，其中，所述处理器，还用于：
    根据所述第一时隙参数和目标参数，生成所述第一序列。
  28. 根据权利要求27所述的装置，其中，所述第一时隙参数，包括以下参数中的至少一项：
    所述第一序列映射的时隙中包含的正交频分复用OFDM符号的数量、所述第一序列映射的时隙的编号、所述第一序列映射的时隙内的所述OFDM符号的编号。
  29. 根据权利要求28所述的方法，其中，所述处理器，还用于：
    根据所述第一时隙参数和所述目标参数，对伪随机序列c(n)进行初始化，其中，初始化方法如下：
    或者，
    其中，nID为所述目标参数，为每个时隙中包含的正交频分复用OFDM符号的数量，为所述第一序列映射的时隙的编号，l为所述第一序列映射的时隙内的所述OFDM符号的编号，
    其中β为实数，且M为正整数。
  30. 根据权利要求29所述的装置，其中，所述nID采用如下方式中的至少一种方式获取，包括：
    根据预配置信息或配置信息确定所述nID；
    根据所述S-PRS的标识信息确定所述nID；
    根据所述第一终端的标识信息和/或第二终端的标识信息确定所述nID；
    根据区域标识信息确定所述nID；
    根据优先级信息确定所述nID；
    根据所述第一终端在物理直通链路控制信道PSCCH中的直通链路控制信息SCI的循环冗余校验码CRC确定所述nID；
    根据高层信令确定所述nID。
  31. 根据权利要求30所述的装置，其中，
    所述区域标识信息，包括所述第一终端和/或所述第二终端所在地理区域的区域标识；
    所述优先级信息，包括终端定位优先级或数据包优先级。
  32. 根据权利要求30或31所述的装置，其中，
    所述区域标识信息，由所述PSCCH的所述SCI指示；
    所述优先级信息，由所述PSCCH的所述SCI和/或高层信令指示；
    其中，所述PSCCH为所述第一终端发送所述S-PRS的关联信道。
  33. 根据权利要求26-32中任一项所述的装置，其中，所述S-PRS对应的频率资源，与下行链路定位参考信号DL-PRS和/或上行链路探测参考信号UL SRS-Pos使用的频率资源不同，其中，所述频率资源包括子载波、资源池、带宽部分BWP、载波、频带中的至少一种。
  34. 一种终端定位装置，所述装置适用于第二终端，其中，包括存储器，收发机，处理器：存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收第一终端发送的直通链路定位参考信号S-PRS，其中，所述S-PRS包括第一序列；
    根据所述S-PRS计算定位测量结果，并将所述定位测量结果发送至所述第一终端或定位服务器。
  35. 一种处理器可读存储介质，其中，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至15中任一项所述的直通链路定位参考信号的发送方法。
  36. 一种处理器可读存储介质，其中，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求16所述的终端定位方法。
  37. 一种计算机程序产品，包括计算机程序，其中所述计算机程序在被处理器执行时实现如权利要求1至15中任一项所述的直通链路定位参考信号的发送方法。
  38. 一种计算机程序产品，包括计算机程序，其中所述计算机程序在被处理器执行时实现如权利要求16所述的终端定位方法。
  39. 一种计算机程序，其中所述计算机程序包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行如权利要求1至15中任一项所述的直通链路定位参考信号的发送方法。
  40. 一种计算机程序，其中所述计算机程序包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行如权利要求16所述的终端定位方法。
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