WO2024031714A1 - Procédé de positionnement et appareil associé - Google Patents

Procédé de positionnement et appareil associé Download PDF

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Publication number
WO2024031714A1
WO2024031714A1 PCT/CN2022/112315 CN2022112315W WO2024031714A1 WO 2024031714 A1 WO2024031714 A1 WO 2024031714A1 CN 2022112315 W CN2022112315 W CN 2022112315W WO 2024031714 A1 WO2024031714 A1 WO 2024031714A1
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WO
WIPO (PCT)
Prior art keywords
time point
auxiliary
terminal device
node
time
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PCT/CN2022/112315
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English (en)
Chinese (zh)
Inventor
赵群
江小威
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/112315 priority Critical patent/WO2024031714A1/fr
Priority to CN202280002736.5A priority patent/CN115669114A/zh
Publication of WO2024031714A1 publication Critical patent/WO2024031714A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technology, and in particular, to a positioning method and a device thereof.
  • terminal equipment In cellular wireless communications, terminal equipment is positioned through uplink (UL) and/or downlink (downlink, DL) positioning reference signals (Positioning Reference Signal, PRS).
  • the terminal device is positioned by measuring the time difference between the DLPRS signals sent by multiple different base stations to reach the terminal device, or the terminal device sends uplink PRS signals, and the base station measures the time difference between the ULPRS signals of the same terminal device arriving at different base stations. The device is positioned.
  • positioning terminal equipment only through base stations requires the support of multiple base stations.
  • the number of base stations is small, accurate positioning information cannot be obtained, reducing positioning accuracy.
  • Embodiments of the present application provide a positioning method and device, which can be applied to long term evolution (long term evolution, LTE) systems, fifth generation (5th generation, 5G) mobile communication systems, and 5G new radio (new radio, NR) systems. , or other future new mobile communication systems and other communication systems, determine the first reception time point through the first PRS sent by the auxiliary node set, and determine the first reference time point, according to the first reception time point and the first reference time The first time difference is obtained, and the target terminal device is positioned according to the first time difference. This avoids the decrease in positioning accuracy when the number of base stations is small, and improves the positioning accuracy of target terminal equipment.
  • long term evolution long term evolution
  • 5G fifth generation
  • new radio new radio
  • embodiments of the present application provide a positioning method applied to a target terminal device.
  • the method includes:
  • auxiliary node set includes at least one auxiliary base station and at least one auxiliary terminal equipment;
  • a first time difference is obtained according to the receiving time point and the first reference time point, where the first time difference is used to position the target terminal device.
  • obtaining the reception time point according to the first PRS includes:
  • the starting time point at which the target terminal device receives the first time unit sent from the first auxiliary node is the receiving time point; wherein the first auxiliary node is the auxiliary node.
  • determining the first reference time point includes:
  • the target terminal device when the target terminal device receives the second time unit sent from the second auxiliary node, determine the start time of the second time unit closest to the first time unit in the time domain.
  • the point is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set.
  • determining the first reference time point includes:
  • the starting time point of the second time unit closest to the first time unit in the time domain is determined to be the first reference time point.
  • determining the first reference time point includes:
  • the target terminal device When the target terminal device receives the second time unit sent from the first communication node, it is determined that the starting time point of the second time unit closest to the first time unit in the time domain is the first reference At a point in time, the first communication node does not belong to the auxiliary node set.
  • the determined second auxiliary node is the same.
  • the serving base station of the target terminal device belongs to the auxiliary node set
  • the serving base station of the target terminal device is determined as the second auxiliary node.
  • the determined first communication node is the same.
  • the serving base station of the target terminal device when the serving base station of the target terminal device does not belong to the auxiliary node set, the serving base station of the target terminal device is determined as the first communication node.
  • the method includes:
  • Receive configuration or control signaling sent by the base station or the core network and determine the second auxiliary node or the first communication node according to the configuration or control signaling.
  • determining the first reference time point includes:
  • the target terminal device When the first auxiliary node is the auxiliary base station, when the target terminal device receives the second time unit sent from the second auxiliary node, it is determined that it is closest to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set;
  • the first auxiliary node is the auxiliary terminal device
  • the second time unit when the target terminal device performs side-link communication transmission determine the closest time unit to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point.
  • determining the first reference time point includes:
  • the target terminal device When the first auxiliary node is the auxiliary base station, when the target terminal device receives the second time unit sent from the second auxiliary node, it is determined that it is closest to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set;
  • the target terminal device When the first auxiliary node is the auxiliary terminal device, when the target terminal device receives the second time unit sent from the first communication node, it is determined that the distance in the time domain from the first time unit is The starting time point of the most recent second time unit is the first reference time point, and the first communication node does not belong to the auxiliary node set.
  • the method also includes:
  • the first auxiliary node is the auxiliary base station, determine that the second auxiliary node is the first reference node;
  • the second auxiliary node is determined to be a second reference node, where the first reference node and the second reference node are different.
  • the first reference node is the auxiliary base station; the second reference node is the auxiliary terminal equipment.
  • the method also includes:
  • the starting time point at which the target terminal device receives the fourth time unit sent from the second reference node that is closest to the second reference time point in the time domain is the third reference time point.
  • the method also includes:
  • the starting time point of the fourth time unit that is closest to the second reference time point in the time domain when the target terminal device performs side-link communication transmission is determined to be the third reference time point.
  • the method also includes:
  • the starting time point at which the target terminal device receives the fourth time unit sent from the first communication node that is closest to the second reference time point in the time domain is the third reference time point.
  • the method also includes:
  • Positioning assistance information is generated according to a second time difference between the second reference time point and the third reference time point.
  • the method also includes:
  • Positioning assistance information is generated according to the synchronization source type sent by the target terminal device for side link communication.
  • the synchronization source type includes one or more of the following:
  • Optional also includes:
  • obtaining the first time difference based on the receiving time point and the first reference time point includes:
  • the difference between the receiving time point and the first reference time point is determined to be the first time difference.
  • the first PRS sent by the auxiliary base station is downlink DLPRS
  • the first PRS sent by the auxiliary terminal equipment is side link SLPRS.
  • the method also includes:
  • the auxiliary node set includes at least one auxiliary base station and at least one auxiliary terminal device.
  • control signaling includes at least one of the following:
  • embodiments of the present application provide another positioning method, which is applied to the auxiliary base station and auxiliary terminal equipment in the auxiliary node set.
  • the method includes:
  • the target terminal device is positioned according to the first time difference between the receiving time point and the first reference time point.
  • embodiments of the present application provide a communication device that has some or all of the functions of the terminal device in implementing the method described in the first aspect.
  • the functions of the communication device may have some or all of the functions in this application.
  • the functions in the embodiments may also be used to independently implement any of the embodiments in this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory.
  • the communication device includes:
  • a first transceiver module configured to receive the first positioning reference signal PRS sent by a set of auxiliary nodes, where the set of auxiliary nodes includes at least one auxiliary base station and at least one auxiliary terminal equipment;
  • a first processing module configured to obtain the reception time point according to the first PRS and determine the first reference time point
  • the second processing module is configured to obtain a first time difference according to the receiving time point and the first reference time point, where the first time difference is used to position the target terminal device.
  • embodiments of the present application provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect.
  • the functions of the communication device may have some of the functions in this application.
  • the functions in all embodiments may also be used to implement any one embodiment of the present application independently.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory.
  • the communication device includes:
  • the second transceiver module is configured to send a first positioning reference signal PRS to the target terminal device to instruct the terminal device to obtain the reception time point according to the first PRS and determine the first reference time point;
  • a third processing module configured to locate the target terminal device according to the first time difference between the receiving time point and the first reference time point.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the method described in the second aspect.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • inventions of the present application provide a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
  • inventions of the present application provide a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
  • embodiments of the present application provide a positioning system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. the above-mentioned communication device.
  • embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
  • embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
  • the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.
  • the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
  • this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic flow chart of a positioning method provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram of a time unit provided by the embodiment of the present application.
  • Figure 6 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Figure 7 is a schematic flowchart of a positioning method provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Figure 9 is a schematic flowchart of a positioning method provided by an embodiment of the present application.
  • Figure 10 is a schematic diagram of a time unit provided by the embodiment of the present application.
  • Figure 11 is a schematic flow chart of a positioning method provided by an embodiment of the present application.
  • Figure 12 is a schematic diagram of a time unit provided by the embodiment of the present application.
  • Figure 13 is a schematic flowchart of a positioning method provided by an embodiment of the present application.
  • Figure 14 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 15 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Figure 16 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include but is not limited to one network device and one terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present application. In actual applications, two or more devices may be included.
  • the communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5th generation 5th generation
  • NR 5th generation new radio
  • side link in the embodiment of the present application may also be called a side link or a through link.
  • the network device 101 in the embodiment of this application is an entity on the network side that is used to transmit or receive signals.
  • the network device 101 can be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Or access nodes in wireless fidelity (WiFi) systems, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • the network equipment provided by the embodiments of this application may be composed of a centralized unit (central unit, CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • the structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of this application is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • Terminal devices can be cars with communication functions, smart cars, roadside units, mobile phones, wearable devices, tablets (Pad), computers with wireless transceiver functions, virtual reality , VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control (industrial control), wireless terminal equipment in self-driving (self-driving), remote medical surgery (remote medical surgery) Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, and smart home Wireless terminal equipment, etc.
  • the embodiments of this application do not limit the specific technology and specific equipment form used by the terminal equipment.
  • the 3GPPR16 protocol supports communication between terminal devices through side links (SL), that is, direct links (or sidelinks) between terminal devices can be used for communication. Similarly, positioning through cellular networks is supported in 3GPPR16 and R17.
  • the terminal equipment can transmit ULPRS, and the base station can also transmit downlink PRS. By measuring the PRS signal, the terminal equipment can be positioned.
  • the target terminal device can be positioned only through the PRS signal (SLPRS) transmitted on the sidelink; the target terminal device can also be positioned through a combination of SLPRS and UL/DL PRS. Positioning here includes absolute positioning (estimate absolute geographical location), relative positioning (estimate relative geographical location) and ranging/lateral positioning.
  • SLPRS roadside nodes
  • TDOA Time Difference of Arrival
  • DLTDOA uses the terminal equipment to measure the time difference between the downlink PRS signals sent by multiple different base stations to the terminal equipment and reaches the terminal equipment for positioning; while ULTDOA sends uplink PRS signals through the terminal equipment, and the base station measures the time difference between the uplink PRS signals of the same terminal equipment reaching different base stations. The time difference is used to locate the terminal device.
  • positioning terminal equipment through TDOA requires the support of multiple base stations.
  • the number of base stations is small (for example, less than 3), accurate positioning information cannot be obtained. Therefore, when the distance between base stations is large and the terminal device is located in the center of a cell, it may not be possible to find a sufficient number of base stations to perform TDOA positioning of the terminal device.
  • Figure 2 is a schematic flowchart of a positioning method provided by an embodiment of the present application. As shown in Figure 2, the method may include but is not limited to the following steps:
  • Step S201 Receive the first positioning reference signal PRS sent by the auxiliary node set, where the auxiliary node set includes at least one auxiliary base station and at least one auxiliary terminal device.
  • the target terminal device is positioned through the PRS signal, which is a signal specially designed for the 5G in-band wireless positioning function.
  • PRS signal is a signal specially designed for the 5G in-band wireless positioning function.
  • Rel-16 completes the standardized definition of PRS dedicated to downlink positioning.
  • 5G NRPRS uses a pseudo-random sequence modulated by quadrature phase shift keying (QPSK), with a specific time-frequency resource block allocation method, and in the time slot symbols and sub-registers.
  • QPSK quadrature phase shift keying
  • Carrier mapping is subject to certain constraints: it cannot be mapped to the resource particles allocated to the synchronization signal block (SSB), and it does not overlap with the cell reference signal of any antenna port.
  • PRS can be distributed in 24 to 272 physical resource blocks in the frequency domain, and can occupy 2, 4, 6, or 12 orthogonal frequency division multiplexing (OFDM) symbols in one time slot in the time domain.
  • OFDM orthogonal frequency division multiplexing
  • PRS allows terminal equipment to receive signals from multiple base stations at the same time, thereby using the triangulation positioning principle to calculate the location of the terminal equipment.
  • the 3GPP standard uses PRS to coordinate the PRS signals of adjacent cells in the frequency domain and time domain respectively to reduce the mutual interference of PRS emitted by different base stations.
  • PRS muting PRS muting
  • the base station can send DLPRS to the terminal equipment through the downlink, and the terminal equipment can also transmit SLPRS through the side link.
  • this application equips the target terminal device with a corresponding auxiliary node set.
  • the auxiliary node set includes at least one auxiliary base station and at least one auxiliary terminal device.
  • the auxiliary terminals in the auxiliary node set The equipment and the auxiliary base station send the reference signal PRS to the target terminal equipment.
  • the target terminal device receives the first PRS sent by the auxiliary terminal device and the auxiliary base station in the auxiliary node set.
  • the first PRS belongs to the auxiliary node set.
  • the first PRS may be the auxiliary terminal device or the auxiliary base station.
  • Step S202 Obtain the reception time point according to the first PRS and determine the first reference time point.
  • the target terminal device after the target terminal device receives the first PRS sent by the auxiliary terminal device and/or the auxiliary base station, it can obtain the reception time point based on the time point when the first PRS is received, and further determine the first reference point in time.
  • the first reference time point is determined by a PRS sent to the target terminal device by other auxiliary base stations or auxiliary terminal devices that are different from the auxiliary terminal device and/or the auxiliary base station in the auxiliary node set.
  • the first PRS sent by the auxiliary base station is downlink DLPRS
  • the first PRS sent by the auxiliary terminal equipment is side link SLPRS.
  • Step S203 Obtain a first time difference according to the receiving time point and the first reference time point, where the first time difference is used to position the target terminal device.
  • the TDOA positioning method is used to locate the target terminal equipment.
  • the specific principle of TDOA is: by measuring the time it takes for the PRS sent from two transmitting points (the first transmitting point and the second transmitting point) to reach the receiving point.
  • the distance between the first transmitting point and the receiving point is obtained by combining the PRS propagation speed and the distance between the first transmitting point and the receiving point, and then based on the sum of the lines connecting the first transmitting point and the second transmitting point distance difference, draw a hyperbola, the first emission point and the second emission point are the focus of the hyperbola.
  • Select multiple pairs of launch points and repeat the above TDOA positioning process to obtain multiple hyperbolas. The intersection of these hyperbolas is the location of the target terminal device.
  • the TDOA positioning method requires time synchronization between transmitting points. Since there is no need to detect signal transmission time, the system's requirements for time synchronization are greatly reduced. For base stations, because the locations of base stations are fixed, synchronization between base stations is much easier to achieve than synchronization between base stations and mobile terminals.
  • the transmitting points are the auxiliary terminal equipment and the auxiliary base station in the auxiliary node set.
  • the execution subject of the TDOA positioning calculation based on the first time difference can be the target terminal device, or it can be the location management function (Location Management Function, LMF) in the core network.
  • LMF Location Management Function
  • the LMF receives the location request for the target UE from the serving AMF using the Nlmf interface.
  • the LMF interacts with the UE to exchange location information applicable to UE-assisted and UE-based positioning methods, and with NG-RAN, N3IWF or TNAN to obtain location information.
  • the first reception time point can be determined based on the first PRS sent by the auxiliary terminal equipment and/or the auxiliary base station in the auxiliary node set, and the first reference time point can be determined. According to the first reception time point and The first reference time point obtains the first time difference, and the target terminal device is positioned according to the first time difference. This avoids the decrease in positioning accuracy when the number of base stations is small, and improves the positioning accuracy of target terminal equipment.
  • obtaining the reception time point according to the first PRS in step S202 includes:
  • the starting time point at which the target terminal device receives the first time unit sent from the first auxiliary node is the receiving time point; wherein the first auxiliary node is the auxiliary node.
  • the PRS sent by the first auxiliary node is the first PRS, and the time unit is a subframe or a time slot; the first auxiliary node sends according to the first time unit, and the first time unit is in Two adjacent ones in the time domain; the target terminal device determines the timing corresponding to the first auxiliary node by receiving the first PRS.
  • the timing is the layout information of the first time unit in the time domain received by the target terminal device. According to the first auxiliary node The corresponding timing can obtain the starting time point of each first time unit, and then select one of the starting time points of the first time unit as the receiving time point.
  • FIG. 3 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Timing1 is the timing corresponding to the first auxiliary node.
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • its starting time point is the position corresponding to the leftmost end of the first time unit on the time axis.
  • the first time units are adjacent in the time domain.
  • the end time point of the previous time unit is also the starting time point of the next time unit.
  • the end time point of the first time unit n is also the start time point of the first time unit n+1.
  • the starting time point of any first time unit can be selected, or the starting time point of a specific first time unit can be selected, for example, the first time unit including the first PRS transmission can be Determine the receiving time point.
  • the starting time point of the first time unit n can be selected as the receiving time point.
  • the time unit may be a slot, a subframe, a frame, an OFDM symbol, etc., or it may be 1 second, 1 millisecond, etc.
  • determining the first reference time point in step S202 includes:
  • the target terminal device when the target terminal device receives the second time unit sent from the second auxiliary node, determine the start time of the second time unit closest to the first time unit in the time domain.
  • the point is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set.
  • the second auxiliary node in the auxiliary node set transmits according to the second time unit, and the second time unit is adjacent in the time domain; the target terminal device determines the first PRS by receiving the first PRS.
  • the timing corresponding to the second auxiliary node is the layout information of the second time unit in the time domain received by the target terminal device.
  • the target terminal device can obtain the starting time point of each second time unit according to the timing corresponding to the second auxiliary node. , and then obtain the starting time point of the second time unit that is closest to the first time unit in the time domain from the starting time point of the second time unit and select one as the first reference time point.
  • Timing1 is the timing corresponding to the first auxiliary node.
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing2 is the timing corresponding to the second auxiliary node.
  • Timing2 includes layout information in the time domain of each second time unit sent by the second auxiliary node. Specifically, it may include the starting time point of each second time unit. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • the time difference between the first reference time point and the receiving time point is the first time difference.
  • determining the first reference time point in step S202 includes:
  • the starting time point of the second time unit closest to the first time unit in the time domain is determined to be the first reference time point.
  • the target terminal device transmits according to the second time unit, and the second time units are adjacent in the time domain; the target terminal device can determine the corresponding timing when it performs side link communication, and the timing is The layout information of the second time unit in the time domain sent by the target terminal device when performing side link communication. According to the timing, the starting time point of each second time unit can be obtained, and then from the start of the second time unit Among the time points, one of the starting time points of the second time unit that is closest to the first time unit in the time domain is selected as the first reference time point.
  • FIG. 5 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Timing1 is the timing corresponding to the first auxiliary node.
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing3 is the timing for the target terminal device to send side-link communication.
  • Timing3 includes the layout information in the time domain of each second time unit sent by the target terminal device for side-link communication. Specifically, it may include the start and start of each second time unit. starting time point. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • the time difference between the first reference time point and the receiving time point is the first time difference.
  • determining the first reference time point in step S202 includes:
  • the target terminal device When the target terminal device receives the second time unit sent from the first communication node, it is determined that the starting time point of the second time unit closest to the first time unit in the time domain is the first reference At a point in time, the first communication node does not belong to the auxiliary node set.
  • the first communication node transmits according to second time units, and the second time units are adjacent in the time domain; the target terminal device can determine the timing corresponding to the first communication node, and the timing is the target terminal The device receives the layout information of the second time unit in the time domain. According to the timing, the starting time point of each second time unit can be obtained, and then the starting time point of the second time unit is obtained in the time domain. Select one of the starting time points of the second time unit that is closest to the first time unit as the first reference time point, where the first communication node does not belong to the auxiliary node set.
  • Timing1 is the timing corresponding to the first auxiliary node.
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing4 is the timing corresponding to the first communication node.
  • Timing4 includes the layout information in the time domain of each second time unit sent by the first communication node, and specifically may include the starting time point of each second time unit. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • the time difference between the first reference time point and the receiving time point is the first time difference.
  • the determined second auxiliary node is the same.
  • the same second auxiliary node is configured for it, so that the first auxiliary node
  • the first reference time point corresponding to the node will not differ depending on whether the first auxiliary node is an auxiliary base station or an auxiliary terminal device, and the first reference time points corresponding to the auxiliary base station and the auxiliary terminal device are unified.
  • the serving base station of the target terminal device belongs to the auxiliary node set
  • the serving base station of the target terminal device is determined as the second auxiliary node.
  • the serving base station of the target terminal device in the process of obtaining the first reference time point through the second auxiliary node, if the serving base station of the target terminal device belongs to the auxiliary node set, that is, the serving base station of the target terminal device is an auxiliary base station. , the serving base station of the target terminal device can be determined as the second auxiliary node.
  • the determined first communication node is the same.
  • the same second auxiliary node is configured for it, so that the first auxiliary node
  • the first reference time point corresponding to the node will not differ depending on whether the first auxiliary node is an auxiliary base station or an auxiliary terminal device, and the first reference time points corresponding to the auxiliary base station and the auxiliary terminal device are unified.
  • the serving base station of the target terminal device when the serving base station of the target terminal device does not belong to the auxiliary node set, the serving base station of the target terminal device is determined as the first communication node.
  • the serving base station of the target terminal device can be determined as the first communication node.
  • the method also includes:
  • Receive configuration or control signaling sent by the base station or the core network and determine the second auxiliary node or the first communication node according to the configuration or control signaling.
  • the second auxiliary node or the first communication node may be instructed by the base station or the core network, and the target terminal device performs the operation according to the configuration or control signaling sent by the second base station or the core network. Determine the second auxiliary node or the first communication node, and further determine the first reference time point.
  • determining the first reference time point includes:
  • the target terminal device When the first auxiliary node is the auxiliary base station, when the target terminal device receives the second time unit sent from the second auxiliary node, it is determined that it is closest to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set;
  • the first auxiliary node is the auxiliary terminal device
  • the second time unit when the target terminal device performs side-link communication transmission determine the closest time unit to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point;
  • different methods can be selected to determine the first reference time point for the two situations that the first auxiliary node is an auxiliary base station and the first auxiliary node is an auxiliary terminal device.
  • Timing1 is the timing corresponding to the first auxiliary node
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing2 is the timing corresponding to the second auxiliary node.
  • Timing2 includes layout information in the time domain of each second time unit sent by the second auxiliary node. Specifically, it may include the starting time point of each second time unit. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • Timing1 is the timing corresponding to the first auxiliary node
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing3 is the timing for the target terminal device to send side-link communication.
  • Timing3 contains the layout information in the time domain of each second time unit sent by the terminal device through the side link. Specifically, it may include the starting time of each second time unit. point. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • determining the first reference time point includes:
  • the target terminal device When the first auxiliary node is the auxiliary base station, when the target terminal device receives the second time unit sent from the second auxiliary node, it is determined that it is closest to the first time unit in the time domain.
  • the starting time point of the second time unit is the first reference time point; wherein the second auxiliary node is an auxiliary base station or auxiliary terminal equipment in the auxiliary node set;
  • the target terminal device When the first auxiliary node is the auxiliary terminal device, when the target terminal device receives the second time unit sent from the first communication node, it is determined that the distance in the time domain from the first time unit is The starting time point of the most recent second time unit is the first reference time point, and the first communication node does not belong to the auxiliary node set.
  • different methods can be selected to determine the first reference time point for the two situations where the first auxiliary node is an auxiliary base station and the first auxiliary node is an auxiliary terminal device.
  • Timing1 is the timing corresponding to the first auxiliary node
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing2 is the timing corresponding to the second auxiliary node.
  • Timing2 includes layout information in the time domain of each second time unit sent by the second auxiliary node. Specifically, it may include the starting time point of each second time unit. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • Timing1 is the timing corresponding to the first auxiliary node
  • Timing1 contains the layout information of each first time unit in the time domain, specifically the starting time point of each first time unit.
  • Timing4 is the timing corresponding to the first communication node. Timing4 includes the layout information in the time domain of each second time unit sent by the first communication node, and specifically may include the starting time point of each second time unit. For each second time unit, its starting time point is the position corresponding to the leftmost end of the second time unit on the time axis, and the second time units are adjacent in the time domain.
  • the starting time point of a first time unit and determining it as the receiving time point it is necessary to select the starting time point closest to the receiving time point from the starting time point of the second time unit and use it as the third time point.
  • a reference point in time In a possible embodiment, the starting time point of the first time unit n is selected as the receiving time point, and then it is detected that the starting time point of the second time unit m is closest to the receiving time point in the time domain, so the The starting time point of the second time unit m is used as the first reference time point.
  • the method includes:
  • the first auxiliary node is the auxiliary base station, determine that the second auxiliary node is the first reference node;
  • the second auxiliary node is determined to be a second reference node, where the first reference node and the second reference node are different.
  • the first auxiliary node as the first auxiliary node can be used for the two situations that the first auxiliary node is an auxiliary base station and the first auxiliary node is an auxiliary terminal equipment.
  • the auxiliary base station and the auxiliary terminal equipment serving as the first auxiliary node respectively select different second auxiliary nodes (ie, the first reference node and the second reference node) to determine the reference time point. If the first auxiliary node is the auxiliary base station, the reference time point is determined according to the first reference node; if the first auxiliary node is the auxiliary terminal equipment, the reference time point is determined according to the second reference node. . It should be noted that the first reference node and the second reference node are different.
  • the first reference node is the auxiliary base station; the second reference node is the auxiliary terminal equipment.
  • the first reference node for determining the reference time point selection also needs to be an auxiliary base station in the auxiliary node set; for the case where the first auxiliary node is an auxiliary terminal device, the first reference node for determining the reference time point selection is The second reference node also needs to be an auxiliary terminal device in the auxiliary node set.
  • FIG. 7 is a schematic flowchart of a positioning method provided by an embodiment of the present application. As shown in Figure 7, the method may include but is not limited to the following steps:
  • Step S701 determine the starting time point at which the target terminal device receives the third time unit sent from the first reference node as the second reference time point;
  • the first reference node when the first auxiliary node is an auxiliary base station, the first reference node sends DLPRS to the target terminal device according to the third time unit, and the third time units are adjacent in the time domain; the target The terminal device can determine the timing corresponding to the first reference node, which is the layout information of the third time unit in the time domain received by the target terminal device, and can obtain the starting point of each third time unit according to the timing corresponding to the first reference node. starting time point, and then select one of the starting time points of the third time unit as the second reference time point.
  • the starting time point of any third time unit can be selected, or the starting time point of a specific third time unit can be selected, such as the third time unit including the DLPRS transmission sent by the first reference node. This can be determined as the second reference time point.
  • Step S702 Determine the starting time point at which the target terminal device receives the fourth time unit sent from the second reference node that is closest to the second reference time point in the time domain as the third reference time point.
  • the second reference node when the first auxiliary node is an auxiliary terminal device, the second reference node sends SLPRS to the target terminal device according to the fourth time unit, and the third time units are adjacent in the time domain;
  • the target terminal device can determine the timing corresponding to the second reference node by receiving SLPRS.
  • the timing is the layout information of the fourth time unit in the time domain received by the target terminal device.
  • Each fourth time can be obtained according to the timing corresponding to the second reference node.
  • the starting time point of the fourth time unit is then selected as the third reference time point from the starting time point of the fourth time unit.
  • FIG 8 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Timing5 is the timing corresponding to the first reference node.
  • Timing5 includes the third time unit sent by each first reference node in the time domain.
  • Layout information specifically the starting time point of each third time unit.
  • Timing6 is the timing corresponding to the second reference node.
  • Timing6 includes layout information in the time domain of each fourth time unit sent by the second reference node. Specifically, it may include the starting time point of each fourth time unit. For each third time unit, its starting time point is the position corresponding to the leftmost end of the third time unit on the time axis, and the third time units are adjacent in the time domain.
  • the starting time point of a third time unit and determine it as the second reference time point, and then select the closest to the second reference time point from the starting time point of the fourth time unit sent by the second reference node 307
  • the starting time point is used as the third reference time point.
  • the starting time point of the third time unit i is selected as the second reference time point, and then it is detected that the starting time point of the fourth time unit j is far away from the second reference time point in the time domain. recently, so the starting time point of the fourth time unit j is used as the third reference time point.
  • FIG. 9 is a schematic flowchart of a positioning method provided by an embodiment of the present application. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step S901 determine the starting time point at which the target terminal device receives the third time unit sent from the second auxiliary node as the second reference time point;
  • the second auxiliary node transmits according to the third time unit, and the third time units are adjacent in the time domain; the target terminal device passes The PRS is received to determine the timing corresponding to the second auxiliary node, and the timing is the layout information of the third time unit in the time domain received by the target terminal device.
  • the starting time point of any third time unit can be selected, or the starting time point of a specific third time unit can be selected, for example, the third time unit including the PRS transmission sent by the second auxiliary node, This can be determined as the second reference time point.
  • Step S902 Determine the starting time point of the fourth time unit closest to the second reference time point in the time domain when the target terminal device performs side link communication transmission as the third reference time point.
  • FIG 10 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Timing5 is the timing corresponding to the second auxiliary node.
  • Timing5 contains the third time unit sent by each second auxiliary node in the time domain.
  • Timing6 is the timing when the target terminal device sends side-link communication.
  • Timing6 contains the layout information in the time domain of each fourth time unit sent by the target terminal device through side-link communication. Specifically, it may include the layout information of each fourth time unit.
  • Starting time point For each third time unit, its starting time point is the position corresponding to the leftmost end of the third time unit on the time axis, and the third time units are adjacent in the time domain.
  • the starting time point of a third time unit and determine it as the second reference time point, and then select the second reference time from the starting time point of the fourth time unit sent by the target terminal device for side link communication. Click the nearest starting time point and use it as the third reference time point.
  • the starting time point of the third time unit i is selected as the second reference time point, and then it is detected that the starting time point of the fourth time unit j is far away from the second reference time point in the time domain. recently, so the starting time point of the fourth time unit j is used as the third reference time point.
  • the third reference time point may be determined based on the fourth time unit in which the target terminal device performs side-link communication transmission.
  • Figure 11 is a schematic flowchart of a positioning method provided by an embodiment of the present application. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step S1101 determine that the starting time point at which the target terminal device receives the third time unit sent from the second auxiliary node is the second reference time point; the second auxiliary node sends according to the third time unit, the The third time units are adjacent to each other in the time domain; the target terminal device determines the timing corresponding to the second auxiliary node by receiving the PRS, and the timing is the layout information of the third time unit in the time domain received by the target terminal device.
  • the starting time point of any third time unit can be selected, or the starting time point of a specific third time unit can be selected, for example, the third time unit including the PRS transmission sent by the second auxiliary node, This can be determined as the second reference time point.
  • the second auxiliary node when the first auxiliary node is an auxiliary terminal device, the second auxiliary node sends a PRS to the target terminal device, and determines the second reference according to the third time unit sent by the second reference node to the target terminal device. point in time.
  • Step S1102 Determine that the starting time point of the fourth time unit that is closest to the second reference time point in the time domain and is sent by the first communication node and is received by the target terminal device is the third reference time point.
  • the third reference time point may be determined based on the fourth time unit sent by the first communication node.
  • FIG 12 is a schematic diagram of a time unit provided by an embodiment of the present application.
  • Timing5 is the time point corresponding to the second auxiliary node.
  • Timing5 contains the third time unit sent by each second auxiliary node in the time domain.
  • layout information specifically the starting time point of each third time unit.
  • Timing6 is a time point corresponding to the first communication node.
  • Timing6 includes layout information in the time domain of each fourth time unit sent by the first communication node. Specifically, it may include the starting time point of each fourth time unit. For each third time unit, its starting time point is the position corresponding to the leftmost end of the third time unit on the time axis, and the third time units are adjacent in the time domain.
  • the starting time point of a third time unit and determine it as the second reference time point, and then select the starting time point closest to the second reference time point from the starting time point of the fourth time unit sent by the first communication node.
  • the starting time point is used as the third reference time point.
  • the starting time point of the third time unit i is selected as the second reference time point, and then it is detected that the starting time point of the fourth time unit j is far away from the second reference time point in the time domain. recently, so the starting time point of the fourth time unit j is used as the third reference time point.
  • the method also includes:
  • Positioning assistance information is generated according to a second time difference between the second reference time point and the third reference time point.
  • the target terminal device may use the second reference time point and the third reference time point as positioning assistance information, specifically calculating the difference between the second reference time point and the third reference time point, As the second time difference, positioning assistance information is generated based on the second time difference.
  • the method also includes:
  • the target terminal device in order to obtain an accurate first time difference, needs to use a synchronization source to perform time synchronization on the auxiliary terminal device and the auxiliary base station in the auxiliary node set.
  • the synchronization source is the subject used for synchronization.
  • the synchronization source type includes one or more of the following:
  • Optional also includes:
  • obtaining the first time difference based on the receiving time point and the first reference time point includes:
  • the difference between the receiving time point and the first reference time point is determined to be the first time difference.
  • the method also includes:
  • the auxiliary node set includes at least one auxiliary base station and at least one auxiliary terminal equipment.
  • the base station or core network may configure the auxiliary node set for the target terminal device, and the target terminal device determines the auxiliary node set according to the configuration or control signaling sent by the second base station or core network, To receive the first PRS and further obtain the time difference.
  • control signaling includes at least one of the following:
  • control signaling may carry address or ID information so that the target terminal can identify the auxiliary base station and auxiliary terminal equipment in the auxiliary node set.
  • the control signaling may carry the configuration information of the first PRS, which includes: the sending time of the first PRS, the starting position of the frequency domain resource, the first PRS size information, the sequence ID information of the first PRS, the Information such as sending cycle and number of sendings.
  • Figure 13 is a schematic flowchart of a positioning method provided by an embodiment of the present application. As shown in Figure 12, the method is applied to the auxiliary base station and auxiliary terminal equipment in the auxiliary node set. The method may include but is not limited to the following steps:
  • Step S1301 Send a first positioning reference signal PRS to the target terminal device to instruct the terminal device to obtain a receiving time point according to the first PRS and determine a first reference time point;
  • Step S1302 Position the target terminal device according to the first time difference between the receiving time point and the first reference time point.
  • the first reception time point can be determined based on the first PRS sent by the auxiliary terminal equipment and/or the auxiliary base station in the auxiliary node set, and the first reference time point can be determined. According to the first reception time point and The first reference time point obtains the first time difference, and the target terminal device is positioned according to the first time difference. This avoids the decrease in positioning accuracy when the number of base stations is small, and improves the positioning accuracy of target terminal equipment.
  • network equipment and terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 14 is a schematic structural diagram of a communication device 140 provided by an embodiment of the present application.
  • the communication device 140 shown in FIG. 14 may include a transceiver module 1401 and a processing module 1402.
  • the transceiving module 1401 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 1401 may implement the sending function and/or the receiving function.
  • the communication device 140 may be a terminal device (such as the terminal device in the foregoing method embodiment), a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 140 may be a network device, a device in a network device, or a device that can be used in conjunction with the network device.
  • the communication device 140 is a terminal device (such as the terminal device in the aforementioned method embodiment) and includes:
  • a first transceiver module configured to receive the first positioning reference signal PRS sent by a set of auxiliary nodes, where the set of auxiliary nodes includes at least one auxiliary base station and at least one auxiliary terminal equipment;
  • a first processing module configured to obtain the reception time point according to the first PRS and determine the first reference time point
  • the second processing module is configured to obtain a first time difference according to the receiving time point and the first reference time point, where the first time difference is used to position the target terminal device.
  • the communication device 140 is a network device including:
  • the second transceiver module is configured to send a first positioning reference signal PRS to the target terminal device to instruct the terminal device to obtain the reception time point according to the first PRS and determine the first reference time point;
  • a third processing module configured to locate the target terminal device according to the first time difference between the receiving time point and the first reference time point.
  • FIG. 15 is a schematic structural diagram of another communication device 150 provided by an embodiment of the present application.
  • the communication device 150 may be a network device, a terminal device (such as the terminal device in the foregoing method embodiment), a chip, a chip system, a processor, etc. that supports the network device to implement the above method, or a terminal device that supports A chip, chip system, or processor that implements the above method.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 150 may include one or more processors 1501.
  • the processor 1501 may be a general-purpose processor or a special-purpose processor, or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 150 may also include one or more memories 1502, on which a computer program 1503 may be stored.
  • the processor 1501 executes the computer program 1503, so that the communication device 150 performs the steps described in the above method embodiments. method.
  • the memory 1502 may also store data.
  • the communication device 150 and the memory 1502 can be provided separately or integrated together.
  • the communication device 150 may also include a transceiver 1504 and an antenna 1505.
  • the transceiver 1504 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1504 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 150 may also include one or more interface circuits 1506.
  • the interface circuit 1506 is used to receive code instructions and transmit them to the processor 1501 .
  • the processor 1501 executes the code instructions to cause the communication device 150 to perform the method described in the above method embodiment.
  • the communication device 150 is a terminal device (such as the terminal device in the aforementioned method embodiment): the processor 1501 is configured to execute steps S201, S202 and S203 in Figure 2 .
  • the communication device 150 is a network device: the transceiver 1504 is used to perform steps S601 and S602 in FIG. 6 .
  • the processor 1501 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1501 may store a computer program 1503, and the computer program 1503 runs on the processor 1501, causing the communication device 150 to perform the method described in the above method embodiment.
  • the computer program 1503 may be solidified in the processor 1501, in which case the processor 1501 may be implemented by hardware.
  • the communication device 150 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the terminal device in the foregoing method embodiment), but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited to Limitations of Figure 15.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 16 refer to the schematic structural diagram of the chip shown in FIG. 16 .
  • the chip shown in Figure 16 includes a processor 1601 and an interface 1602.
  • the number of processors 1601 may be one or more, and the number of interfaces 1602 may be multiple.
  • the chip also includes a memory 1603, which is used to store necessary computer programs and data.
  • Embodiments of the present application also provide a positioning system, which includes a communication device as a terminal device (such as the terminal device in the foregoing method embodiment) and a communication device as a network device in the embodiment of FIG. 14, or the system includes
  • the communication device is a terminal device (such as the terminal device in the aforementioned method embodiment) and the communication device is a network device.
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • the corresponding relationships shown in each table in this application can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by this application.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande divulguent un procédé de positionnement et un appareil associé, applicables à des systèmes de communication tels que des systèmes d'évolution à long terme, des systèmes de communication mobile de cinquième génération, de nouveaux systèmes de nouvelle radio 5G ou d'autres systèmes de communication mobile futurs. Le procédé consiste à : recevoir un premier PRS envoyé par un premier nœud auxiliaire dans un ensemble de nœuds auxiliaires, acquérir un point temporel de réception selon le premier PRS, et déterminer un premier point temporel de référence ; et acquérir une première différence temporelle en fonction du point temporel de réception et du premier point temporel de référence, la première différence temporelle étant utilisée pour positionner un dispositif terminal cible. Par la mise en œuvre des modes de réalisation de la présente invention, un premier point temporel de réception peut être déterminé selon un premier PRS envoyé par un premier nœud auxiliaire, un premier point temporel de référence est déterminé, et une première différence temporelle est obtenue selon le premier point temporel de réception et le premier point temporel de référence, de façon à positionner un dispositif terminal cible. La réduction de la précision de positionnement est empêchée dans une situation dans laquelle le nombre de stations de base est faible, et la précision de positionnement d'un dispositif terminal cible est améliorée.
PCT/CN2022/112315 2022-08-12 2022-08-12 Procédé de positionnement et appareil associé WO2024031714A1 (fr)

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CN202280002736.5A CN115669114A (zh) 2022-08-12 2022-08-12 定位方法及其装置

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