WO2023221924A1 - 定位方法和通信装置 - Google Patents

定位方法和通信装置 Download PDF

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Publication number
WO2023221924A1
WO2023221924A1 PCT/CN2023/094200 CN2023094200W WO2023221924A1 WO 2023221924 A1 WO2023221924 A1 WO 2023221924A1 CN 2023094200 W CN2023094200 W CN 2023094200W WO 2023221924 A1 WO2023221924 A1 WO 2023221924A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
information
reference signal
network device
request
Prior art date
Application number
PCT/CN2023/094200
Other languages
English (en)
French (fr)
Inventor
张梦晨
姚楚婷
徐海博
Original Assignee
华为技术有限公司
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
Priority claimed from CN202210728631.XA external-priority patent/CN117135561A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023221924A1 publication Critical patent/WO2023221924A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present application relates to the field of wireless communications, and more specifically, to a positioning method and a communication device.
  • the current positioning method mainly locates the target terminal device based on the reference signal of the Uu port in the positioning scenario.
  • a side link that is, at least one that can send the reference signal of the PC5 interface is introduced in the positioning scenario.
  • Network element or terminal or entity such as road side unit (RSU)
  • RSU road side unit
  • the reference signal based on the Uu port and the reference signal based on the PC5 interface are needed to locate the target terminal device, or positioning
  • the target terminal device only needs to be positioned based on the reference signal of the PC5 interface.
  • the location information of the target terminal device cannot be accurately calculated.
  • Embodiments of the present application provide a positioning method and a communication device, which can accurately calculate the position of a target terminal device in a positioning scenario including side-line communication.
  • a positioning method is provided.
  • the method can be executed by a first terminal device, or can also be executed by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the method may include: the first terminal device obtains first information, the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and a synchronization source of the second terminal device, Wherein, the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the first terminal device determines the location of the first terminal device according to the first information. location information.
  • the second terminal device that assists in locating the position of the first terminal device communicates with the first terminal device through a side link in the positioning scenario, that is, a side link reference signal based on the PC5 interface is required in the positioning scenario.
  • the first terminal device can accurately calculate the location information of the first terminal device by obtaining the synchronization information of the second terminal device.
  • the first terminal device obtains the first information, including: the first terminal device receives the first information from the second network device.
  • the second network device in this application is a device with positioning management function.
  • the second network device The device can be part of the core network or can be integrated into network equipment.
  • the second network device may be the location management function LMF, or the location management component LMC in the service network device of the terminal device to be located.
  • the second network device may also be called a positioning management device or a positioning center. This application does not limit the name of the positioning management device. In future evolution technologies, the positioning management device may also be given other names.
  • the first terminal device obtains the first information, including: the first terminal device receives a first configuration message from the second network device, the first configuration message includes the second The configuration information of the sidelink reference signal of the terminal device and the configuration information of the sidelink reference signal of the second terminal device are used by the first terminal device to receive the sidelink reference signal of the second terminal device; the first configuration message also includes first information.
  • the first terminal device obtaining the first information includes: the first terminal device receiving the first information from the second terminal device.
  • the method further includes: the first terminal device receiving a second configuration message from the second terminal device, the second configuration message including the side row reference of the second terminal device
  • the signal configuration information, the configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the second configuration message also includes the first information.
  • the method further includes: the first terminal device sending a first message to the second network device, where the first message includes the identification of the second terminal device.
  • the first terminal device can report to the second network device the identity of the second terminal device that can be used to locate its own position, so as to avoid the second terminal device that does not need to send the sideline reference signal from also sending the sideline reference signal to the first terminal device. Waste of resources caused by sidelink reference signals.
  • the second terminal device is one or more terminal devices.
  • a positioning method is provided.
  • the method can be executed by a second network device, or can also be executed by a component (such as a chip or circuit) of the second network device.
  • a component such as a chip or circuit
  • the method may include: the second network device obtains first information, the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and a synchronization source of the second terminal device, Wherein, the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the second network device determines the location of the first terminal device according to the first information. location information.
  • the second terminal device that assists in locating the position of the first terminal device communicates with the first terminal device through the side link in the positioning scenario, that is, in the positioning scenario
  • the reference signal based on the PC5 interface needs to be used to determine the location of the first terminal device.
  • the second network device can accurately calculate the location information of the first terminal device by acquiring the synchronization information of the second terminal device.
  • the second network device obtains the first information, including: the second network device receives the first information from the second terminal device.
  • the second network device obtains the first information, including: the second network device receives the first information from the serving base station network device of the second terminal device.
  • the second network device obtains the first information, including: the second network device receives the first information from the first terminal device.
  • the method further includes: the second network device sends a first request message to the second terminal device, the first request message is used to request synchronization information of the second terminal device , the second network The device receives a first request response message from the second terminal device, where the first request response message includes first information.
  • the method further includes: the second network device sends a second request message to the serving base station network device of the second terminal device, the second request message is used to request the second Synchronization information of the terminal device, the second network device receives a second request response message from the serving base station network device of the second terminal device, and the second request response message includes the first information.
  • the second network device sends a third request message to the first terminal device, and the third request message is used to request synchronization information of the second terminal device.
  • the second network device A third request response message is received from the first terminal device, where the third request response message includes the first information.
  • the method further includes: the second network device sending a fourth request message to the serving base station network device of the second terminal device, where the fourth request message is used to request configuration of the second terminal device.
  • the configuration information of the side-link reference signal of the second terminal device is used by the first terminal device to receive the side-link reference signal of the second terminal device; the second network device receives the side-link reference signal from the second terminal device.
  • a fourth request response message of the service base station network device of the device, the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device; the fourth request response message includes the first information.
  • the method further includes: the second network device sends a first configuration message to the first terminal device, where the first configuration message includes the sideline reference signal of the second terminal device.
  • the configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the first configuration message also includes first information.
  • the method further includes: a second network device receiving a first message from the first terminal device, where the first message includes an identification of the second terminal device; the second network device The device sends first indication information to the third terminal device.
  • the first indication information indicates that the third terminal device does not need to send a reference signal to the first terminal device.
  • the third terminal device requests for assistance in locating all networks of the first terminal device for the second network device. Terminal equipment other than the second terminal equipment among all terminal equipment covered by the device.
  • the second network device receives the identification of the second terminal device that can be used to locate its own location reported by the first terminal device, and sends the first indication information to the third terminal device to avoid the need to send the side reference.
  • the terminal equipment of the signal also sends the side-link reference signal to the first terminal equipment, resulting in a waste of resources.
  • the method further includes: the second terminal device is one or more terminal devices.
  • a positioning method is provided.
  • the method can be executed by the first terminal device, or can also be executed by a component (such as a chip or circuit) of the first terminal device.
  • a component such as a chip or circuit
  • the method may include: the first terminal device obtains first information, the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and a synchronization source of the second terminal device, Wherein, the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the first terminal device sends the first information to the second network device.
  • the reference signal based on the PC5 interface needs to be used to determine the location of the first terminal device.
  • the first terminal device can send the synchronization information of the second terminal device to the second network device, so that the second network device can accurately calculate the location information of the first terminal device.
  • the first terminal device obtaining the first information includes: the first terminal device receiving the first information from the second terminal device.
  • the method further includes: the first terminal device receiving a second configuration message from the second terminal device, the second configuration message including the side reference of the second terminal device.
  • the signal configuration information, the configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the second configuration message also includes the first information.
  • the method further includes: the first terminal device sending a first message to the second network device, where the first message includes the identification of the second terminal device.
  • the second terminal device is one or more terminal devices.
  • a positioning method is provided.
  • the method can be executed by a second network device, or can also be executed by a component (such as a chip or circuit) of the second network device.
  • a component such as a chip or circuit
  • the method may include: the second network device obtains first information, the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and a synchronization source of the second terminal device, Wherein, the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the second network device sends the first information to the first terminal device.
  • the second terminal device that assists in locating the position of the first terminal device communicates with the first terminal device through the side link in the positioning scenario, that is, in the positioning scenario
  • the reference signal based on the PC5 interface needs to be used to determine the location of the first terminal device.
  • the second network device sends the synchronization information of the second terminal device to the first terminal device, so that the first terminal device can accurately calculate the location information of the first terminal device.
  • the second network device obtains the first information, including: the second network device receives the first information from the second terminal device.
  • the second network device obtains the first information, including: the second network device receives the first information from the serving base station network device of the second terminal device.
  • the method further includes: the second network device sending a first request message to the second terminal device, the first request message being used to request synchronization information of the second terminal device , the second network device receives a first request response message from the second terminal device, where the first request response message includes the first information.
  • the method further includes: the second network device sending a second request message to the serving base station network device of the second terminal device, the second request message being used to request the second Synchronization information of the terminal device, the second network device receives a second request response message from the serving base station network device of the second terminal device, and the second request response message includes the first information.
  • the method further includes: the second network device sending a fourth request message to the serving base station network device of the second terminal device, where the fourth request message is used to request configuration of the second terminal device.
  • the configuration information of the side-link reference signal of the second terminal device is used by the first terminal device to receive the side-link reference signal of the second terminal device; the second network device receives the side-link reference signal from the second terminal device.
  • a fourth request response message of the service base station network device of the device, the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device; the fourth request response message includes the first information.
  • the method further includes: the second network device sends a first configuration message to the first terminal device, where the first configuration message includes the sidelink reference signal of the second terminal device.
  • configuration information The configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the first configuration message also includes first information.
  • the method further includes: the second network device receives a first message from the first terminal device, where the first message includes the identification of the second terminal device; the second network device The device sends first instruction information to the third terminal device.
  • the first instruction information indicates that the third terminal device does not need to send a reference signal to the first terminal device.
  • the third terminal device requests all base station network devices for assisting in locating the target terminal for the second network device. Terminal equipment other than the second terminal equipment among all covered terminal equipment.
  • the second terminal device is one or more terminal devices.
  • a positioning method is provided.
  • the method can be executed by the first network device, or can also be executed by a component (such as a chip or circuit) of the first network device.
  • a component such as a chip or circuit
  • the method may include: the first network device obtains first information, the first information includes synchronization information of the second terminal device, the first network device is a serving network device of the second terminal device, and the synchronization information of the second terminal device includes the Synchronization information of the synchronization source between the second terminal equipment and the second terminal equipment.
  • the second terminal equipment is used to assist in locating the position of the first terminal equipment.
  • the second terminal equipment and the first terminal equipment are connected through a side link.
  • the method further includes: the first network device receiving a second request message from the second network device, the second request message being used to request synchronization of the second terminal device Information: the first network device sends a second request response message to the second network device, and the second request response message includes the first information.
  • the method further includes: the first network device receiving a fourth request message from the second network device, the fourth request message being used to request configuration of the second terminal device.
  • the configuration information of the sidelink reference signal, the configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the first network device sends a fourth request to the second network device response message, the fourth request response message includes the configuration information of the sidelink reference signal of the second terminal device; the fourth request response message also includes the first information.
  • the method further includes: the first network device sending a second message to the second terminal device, the second message including the configuration of the sidelink reference signal of the second terminal device. information.
  • the method further includes: the first network device sending a fifth request message to the second terminal device, the fifth request message being used to request the side row of the second terminal device. Configuration information of the reference signal; the first network device receives a fifth request response message from the second terminal device, and the fifth response request message includes configuration information of the sideline reference signal of the second terminal device.
  • the second terminal device is one or more terminal devices.
  • a positioning method is provided.
  • the method can be executed by a second terminal device, or can also be executed by a component (such as a chip or circuit) of the second terminal device.
  • a component such as a chip or circuit
  • the method may include: the second terminal device determines synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and a synchronization source of the second terminal device; the second terminal device sends the synchronization information to the first device.
  • Send the first information the first information includes the synchronization information of the second terminal device, wherein the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device and the first terminal device are connected through a side link
  • the first device is a first terminal device or a second network device.
  • the method when the first device is a second network device, the method further includes: the second terminal device receives a first request message from the first device, the first request message Used to request synchronization information of the second terminal device; the second terminal device sends a first response request message to the first device, and the first request response message includes the first information.
  • the method when the first device is a first terminal device, the method further includes: the second terminal device sends a second configuration message to the first device, and the second configuration message includes The configuration information of the sidelink reference signal of the second terminal device, the configuration information of the sidelink reference signal of the second terminal device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the second configuration message also includes the first information.
  • the method further includes: the second terminal device receiving a second message from the service network device of the second terminal device, the second message including the side information of the second terminal device. Configuration information of the row reference signal.
  • the method further includes: the second terminal device receiving a fifth request message from the service network device of the second terminal device, the fifth request message being used to request the second Configuration information of the sidelink reference signal of the terminal device; the second terminal device sends a fifth request response message to the serving network device of the second terminal device, and the fifth response request message includes the configuration information of the sidelink reference signal of the second terminal device.
  • the synchronization source of the second terminal device is the serving base station network device of the second terminal device
  • the synchronization information is the second terminal device and the serving base station network of the second terminal device. The time difference between the subframe boundaries of the device.
  • the synchronization source of the second terminal device is the Global Navigation Satellite System GNSS
  • the synchronization information is the direct frame number time offset offsetDFN of the second terminal device.
  • a seventh aspect provides a communication device configured to perform the method provided in the first or third aspect.
  • the device may include units and/or modules for performing the first aspect or the third aspect and the method in any possible implementation of the first aspect or the third aspect, such as a processing unit and/or a communication unit. .
  • the device is a first terminal device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in the first terminal device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or Related circuits, etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc. It can be understood that when the device is a chip, chip system or circuit used in a first terminal device, the first aspect or the third aspect and the method in any of the possible implementations of the first aspect or the third aspect involve The first terminal equipment is the device.
  • An eighth aspect provides a communication device configured to perform the method provided in the second or fourth aspect.
  • the device may include units and/or modules for performing the second aspect or the fourth aspect and the method in any possible implementation of the second or fourth aspect, such as a processing unit and/or a communication unit .
  • the device is a second network device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, chip system or circuit used in the second network device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip, chip system or circuit etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc. It can be understood that when the device is a chip, chip system or circuit used in a second network device, the second aspect or the fourth aspect and the method in any of the possible implementations of the second aspect or the fourth aspect involve The second network device is the device.
  • a ninth aspect provides a communication device, which is used to perform the method provided in the fifth aspect.
  • the device may include units and/or modules for performing the method in the fifth aspect and any possible implementation of the fifth aspect, such as a processing unit and/or a communication unit.
  • the device is a first network device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in the first network device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or Related circuits, etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc. It can be understood that when the device is a chip, chip system or circuit used in a first network device, the first network device involved in the method in any of the fifth aspects and any possible implementation manner of the fifth aspect is the first network device. device.
  • a communication device which is used to perform the method provided in the sixth aspect.
  • the device may include units and/or modules, such as a processing unit and/or a communication unit, for performing the sixth aspect and the method in any possible implementation manner of the sixth aspect.
  • the device is a second terminal device.
  • the communication unit may be a transceiver, or an input/output interface;
  • the processing unit may be at least one processor.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the device is a chip, a chip system or a circuit used in the second terminal device.
  • the communication unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or Related circuits, etc.
  • the processing unit may be at least one processor, processing circuit or logic circuit, etc. It can be understood that when the device is a chip, chip system or circuit used in a second terminal device, the second terminal device involved in the method in any possible implementation manner of the sixth aspect and the sixth aspect is the second terminal device. device.
  • the present application provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to retrieve data from the at least one memory.
  • the computer program or instruction is called and run, so that the communication device performs the method in the first aspect or the third aspect and any possible implementation of the first aspect or the third aspect.
  • the present application provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to retrieve data from the at least one memory.
  • the computer program or instruction is called and run, so that the communication device performs the method in the second aspect or the fourth aspect and any possible implementation of the second aspect or the fourth aspect.
  • the present application provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to slave The computer program or instructions are called and run in at least one memory, so that the communication device executes the method in the fifth aspect and any possible implementation manner of the fifth aspect.
  • the present application provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, the at least one memory is used to store computer programs or instructions, and the at least one processor is used to retrieve data from the at least one memory.
  • the computer program or instruction is called and run, so that the communication device executes the method in the sixth aspect and any possible implementation manner of the sixth aspect.
  • a computer-readable storage medium stores a program code for device execution.
  • the program code includes a program code for executing the above-mentioned first aspect, second aspect, third aspect, or third aspect.
  • the method in any possible implementation manner of the fourth aspect, the fifth aspect, or the sixth aspect, and the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, or the sixth aspect.
  • a sixteenth aspect provides a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, it causes the computer to execute the above first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect or The sixth aspect and the method in any possible implementation manner of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect or the sixth aspect.
  • a chip in a seventeenth aspect, includes a processor and a communication interface.
  • the processor reads instructions stored in the memory through the communication interface and executes the above-mentioned first aspect, second aspect, third aspect, fourth aspect or third aspect.
  • the fifth aspect or the sixth aspect and the method in any possible implementation manner of the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect or the sixth aspect.
  • the chip also includes a memory, in which computer programs or instructions are stored.
  • the processor is used to execute the computer programs or instructions stored in the memory.
  • the processor is used to execute Any of the above first aspect or second aspect or third aspect or fourth aspect or fifth aspect or sixth aspect and first aspect or second aspect or third aspect or fourth aspect or fifth aspect or sixth aspect. A method among possible implementations.
  • An eighteenth aspect provides a communication system, which includes one or more communication devices shown in the eleventh to fourteenth aspects.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a wireless communication system 200 suitable for embodiments of the present application.
  • Figure 3 is a schematic diagram of the DL-TDOA positioning method.
  • Figure 4 is a schematic flow chart of a positioning method provided by an embodiment of the present application.
  • Figure 5 is a schematic flowchart of a positioning management device and a first terminal device provided by this application for obtaining the configuration information of the sidelink reference signal of the second terminal device.
  • Figure 6 is a schematic flow chart of a positioning management device provided by this application for calculating the location information of the first terminal device.
  • Figure 7 is a schematic flow chart of another positioning management device provided by this application calculating the position information of the first terminal device.
  • Figure 8 is a schematic flow chart of a positioning method provided by an embodiment of the present application.
  • Figure 9 is a schematic flow chart of a first terminal device calculating location information of the first terminal device provided by this application.
  • Figure 10 is a schematic flow chart of another first terminal device provided by this application for calculating the location information of the first terminal device.
  • FIG. 11 is a schematic block diagram of the communication device 1000 provided by this application.
  • Figure 12 is a schematic structural diagram of the communication device 10 provided by this application.
  • the technical solution of this application can be applied to scenarios where terminal equipment needs to be positioned. For example, it can be applied to adopt time difference of arrival (TDOA), downlink time difference of arrival (DL-TDOA), uplink time difference of arrival (UL-TDOA), enhanced cell In the positioning scenario of enhanced cell identifier (E-CID) or multi round-trip time (multi-RTT) technology.
  • TDOA time difference of arrival
  • DL-TDOA downlink time difference of arrival
  • UL-TDOA uplink time difference of arrival
  • E-CID enhanced cell identifier
  • multi-RTT multi round-trip time
  • LTE long term evolution
  • FDD frequency division duplex
  • UMTS time division duplex
  • WiMAX microwave access
  • 5G fifth generation
  • 5G fifth generation
  • NR new radio
  • V2X vehicle-to-X
  • V2X can include vehicle to Internet (vehicle to network, V2N), vehicle to vehicle (vehicle to-vehicle, V2V), vehicle to infrastructure (vehicle to infrastructure, V2I), vehicle to pedestrian (vehicle to pedestrian, V2P), etc.
  • long term evolution-vehicle (LTE-V) vehicle networking, machine type communication , MTC), Internet of things (IoT), long term evolution-machine (LTE-M), machine to machine (M2M), etc.
  • the terminal equipment in the embodiment of this application may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication equipment, user agent or user device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or a device with wireless communications Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, audio devices, terminal devices in future 5G networks or future evolved Public Land Mobile Networks (PLMN) ), the embodiments of the present application are not limited to this.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN Public Land Mobile Networks
  • the terminal device in this application may also be a road side communication unit (road side units, RSU).
  • RSU is a facility deployed on the roadside for auxiliary communication in the vehicle delay-tolerant network. It is directly connected to the backbone network and can communicate wirelessly with the vehicle. Compared with vehicles in on-board delay-tolerant networks, RSU has better communication capabilities, coverage and transmission speed, and can communicate with multiple vehicles at the same time. In addition, RSU has a large storage space, which can store information and improve communication probability. Therefore, by deploying relevant RSUs in the road traffic system, on the one hand, it can effectively solve the Internet access problem of existing vehicles, on the other hand, it can also greatly increase the communication opportunities between vehicles. Through the RSU cache message, Efficient transmission of messages between vehicles.
  • the terminal device may include: a radio resource control (RRC) signaling interaction module, a media access control (media access control, MAC) signaling interaction module, and physical (physical, PHY) signaling.
  • RRC radio resource control
  • MAC media access control
  • PHY physical (physical, PHY) signaling.
  • the RRC signaling interaction module may be: a module used by network equipment and terminal equipment to send and receive RRC signaling.
  • the MAC signaling interaction module may be: a module used by network equipment and terminal equipment to send and receive media access control element (media access control control element, MAC-CE) signaling.
  • PHY signaling and data can be: modules used by network equipment and terminal equipment to send and receive uplink control signaling or downlink control signaling, uplink and downlink data or downlink data.
  • the network device in the embodiment of this application may be a device used to communicate with a terminal device.
  • the network device includes but is not limited to: a global system for mobile communications (GSM) system or a code division multiple access (code division multiple access) , the base transceiver station (BTS) in CDMA), or the base station B (nodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolution of the LTE system Type base station B (evolved nodeB, eNB or eNodeB), or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or a radio network controller (radio network controller, RNC), Base station controller (BSC), home base station (e.g., home evolved nodeB, or home nodeB, HNB), baseband unit (BBU), or the network device can be a relay station, access point, or vehicle-mounted device , wearable devices and network equipment in 5G networks or network equipment in future evolved PLMN networks
  • gNB may include centralized units (CUs) and DUs.
  • gNB can also include an active antenna unit (active antenna unit, AAU for short).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP). layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • layer functions DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), or the CU can be divided into network equipment in the core network (core network, CN), which is not limited in this application.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application.
  • the communication system 100 includes a terminal device (represented as UE in Figure 1), a wireless access network (represented as next generation radio access network (NG-RAN) in Figure 1) and a core network.
  • a terminal device represented as UE in Figure 1
  • a wireless access network represented as next generation radio access network (NG-RAN) in Figure 1
  • NG-RAN next generation radio access network
  • the radio access network includes one or more next generation evolved node B (next generation evolved node B, ng-eNB) and gNB.
  • Ng-eNB represents the LTE base station connected to the 5G core network
  • gNB represents the 5G base station connected to the 5G core network.
  • Communication between Ng-eNB and gNB, or between two ng-eNBs, or between two gNBs is through the Xn interface.
  • the Xn interface may also be called the XnAP interface.
  • the wireless access network is connected to the core network through the NG-C interface.
  • the core network includes other functions such as access and mobility management function (AMF) and location management function (LMF).
  • AMF access and mobility management function
  • LMF location management function
  • the LMF is responsible for supporting different types of location services related to the UE, including positioning the UE and transmitting assistance data to the UE.
  • the LMF may signal interact with the RAN, eg, ng-eNB or gNB, and the UE.
  • LMF and ng-eNB or gNB exchange information through new radio positioning protocol annex (NRRPa) messages, such as obtaining reference signals (position reference signal, PRS), sounding reference signals (sounding reference signal, SRS) configuration information, cell timing, cell location information, etc.
  • NRRPa new radio positioning protocol annex
  • LMF and UE transmit UE capability information, auxiliary information, measurement information, etc. through LTE positioning protocol (LPP) messages.
  • LTP LTE positioning protocol
  • the AMF entity can receive location service requests related to the UE from the location services (LCS) entity of the 5G core network (5G core, 5GC), or the AMF itself can also start some location services on behalf of a specific UE and transfer the location services The request is forwarded to LMF.
  • LCS location services
  • the terminal device is connected to the radio access network via the ng-eNB through the LTE-Uu interface.
  • the terminal device can also connect to the radio access network via the gNB through the NR-Uu interface.
  • the communication system 100 may include one or more base stations (including ng-eNB or gNB). It should also be understood that the communication system 100 may include one or more terminal devices, for example, one or more terminal device groups (UE set as shown in Figure 1). A gNB can send data or control signaling to one or more terminal devices. Multiple gNBs can also send data or control signaling to a terminal device at the same time.
  • ng-eNB and gNB in Figure 1 can also be replaced by TRP, TP, reception point (RP), cell, etc.
  • FIG. 2 is a schematic diagram of a wireless communication system 200 suitable for embodiments of the present application.
  • the wireless communication system 200 may include at least one terminal device, such as the UE 101 shown in FIG. 2 .
  • the wireless communication system 200 may further include multiple network devices (for example, the network device may be a base station (BS) or a TRP, the base station is taken as an example below), where the multiple base stations include the base station of the serving cell of the terminal device 101 and the base station of one or more neighboring cells of the serving cell.
  • the base station of the serving cell (may also be called serving base station) is shown as 102 in Figure 2
  • the base station of the adjacent cell (may also be called adjacent base station) is shown as 103 and 104 in Figure 2.
  • Both network equipment and terminal equipment can be configured with multiple antennas, and network equipment and terminal equipment can communicate using multi-antenna technology.
  • the base station in Figure 2 can be replaced by TRP, TP, RP, cell, etc.
  • the wireless communication system 200 may also include an LMF network element 105.
  • the LMF network element 105 can be used to implement location estimation of the terminal device.
  • the LMF network element 105 can be deployed inside the core network, that is, the LMF network element 105 also belongs to a core network element.
  • the LMF network element 105 can communicate with the network device through the AMF network element (not shown in the figure).
  • the LMF network element sending information to the network device through the AMF network element is abbreviated as, the LMF network element sends information to the network device.
  • the LMF network element sending a message to the network device can be understood as the LMF network element first sending the information to the AMF network element, and the AMF network element forwarding the information to the network device.
  • the LMF network element can directly send the information to the network device.
  • some functions of the LMF network element 105 can be integrated in the network device.
  • LMC location management component
  • the base station 102 of the serving cell and the base stations 103 and 104 of two neighboring cells all integrate LMC.
  • the LMC of the LMF network element integrated in the network device sends information to the network device, which can also be considered as the LMF network element sending information to the network device.
  • Figure 2 shows a base station 102 of a serving cell and base stations 103 and 104 of two neighboring cells.
  • the communication system 200 may also include more base stations of neighboring cells.
  • the LMF network element and the base station communicate through the NRPPa protocol.
  • the LMF network element and the UE communicate through the LPP protocol.
  • the LMF exchanges cell information with the base station through the NRPPa protocol, such as configuration information of the cell's reference signal, cell timing information, and geographical location information of the cell.
  • LMF transfers UE capability information, auxiliary information, measurement information, etc. with the UE through the LPP protocol.
  • the communication interface between the terminal and the base station, Uu communication must involve the base station and be covered by the cellular network. Its characteristics are: achieving reliable communication over long distances and a wider range. PC5 interface and Uu interface can coexist.
  • the communication interface between terminals is a short-distance direct communication interface between vehicles, people and road infrastructure.
  • PC5 communication does not require cellular network coverage and can communicate point-to-point. Its characteristics are: low-latency, high-capacity, and high-reliability communication through direct connection, broadcast, and network scheduling.
  • the direct communication link used by the PC5 interface is called the sidelink (SL).
  • RRC idle state RRC_IDLE
  • RRC deactivated state RRC_INACTIVE
  • RRC connected state RRC_CONNECTED
  • RAN has the context of the UE, and the UE and RAN have a signaling connection.
  • the UE can receive messages and system messages sent by the RAN to control the UE to perform data transmission, handover, and notify the UE of relevant scheduling information, and the RAN can receive channel quality information fed back by the UE.
  • 2RRC_INACTIVE RRC deactivated state: The connection between the RAN and the core network is maintained, and no resources are allocated to the air interface, which can quickly restore services and improve the experience of delay-sensitive applications.
  • the power saving effect of users in the deactivated state can also be close to idle. status, extending the battery life of your mobile phone.
  • 3RRC_IDLE (RRC idle state): RAN has no context for the UE, and there is no signaling connection between the UE and the RAN. In this state, the UE can receive system messages and paging messages, and perform cell selection and reselection. When the UE needs to establish a connection with the network for a certain purpose (service request, location update, paging, etc.), the RRC connection establishment is triggered. After the RRC connection is established, it enters the RRC connection state.
  • a certain purpose service request, location update, paging, etc.
  • the RRC non-connected state in this application may be the RRC idle state and/or the RRC deactivated state.
  • the RRC non-connected state in this application can be replaced by the RRC idle state and/or the RRC deactivated state.
  • TP used for a cell, part of a cell or a positioning reference signal that only supports DL (positioning
  • Transmission points may include base station (ng-eNB or gNB) antennas, remote radio heads, remote antennas of the base station, antennas that only support DL-PRS TP, etc.
  • a cell may include one or more transmission points. For homogeneous deployment, each transmission point can correspond to a cell.
  • TRP A group of geographically co-located antennas (such as an antenna array with one or more antenna elements) that supports TP and/or RP functions.
  • RP A set of geographically co-located receiving antennas (e.g. with one or more antenna elements) for a cell, a portion of a cell, or an RP for a UL channel sounding reference signal (SRS) only. antenna array).
  • the reception point can include a base station (ng-eNB or gNB) antenna, a remote radio head, a remote antenna of the base station, an antenna that only supports UL-SRS RP, etc.
  • a cell may include one or more reception points. For homogeneous deployment, each receiving point can correspond to a cell.
  • the target UE can be positioned through positioning technology, so that the positioning initiator that initiates the positioning service can obtain the location information of the target UE.
  • the positioning initiator can be LCS, UE, or AMF network element, etc.
  • the LCS requests the serving AMF of the target UE to locate the target UE; or the serving AMF of the target UE decides to locate the target UE; or the target UE requests positioning services from its serving AMF, for example, due to positioning or transmission of assistance information.
  • LMF will further perform positioning-related operations.
  • the LMF needs to interact with the base station, such as obtaining auxiliary information related to air interface positioning; the LMF also needs to interact with the target UE, such as the capability transmission process, including obtaining the UE's positioning capability and providing positioning-related auxiliary information to the UE.
  • the target UE can be positioned by sending and/or receiving positioning-related reference signals based on the Uu port, and positioning methods supported in NR and LTE can be used to achieve positioning of the target UE.
  • positioning-related reference signals based on the Uu interface include PRS and/or SRS, where PRS is a downlink signal and SRS is an uplink signal.
  • TDOA a commonly used cellular network positioning method
  • TDOA includes the downlink time difference of arrival (DL-TDOA) positioning method and the uplink time difference of arrival (UL-TDOA) positioning method.
  • DL-TDOA and UL-TDOA can achieve positioning of the target UE through the communication system shown in Figure 1 or Figure 2. It should be noted that TDOA requires a high degree of time synchronization between base stations that assist in locating the target UE.
  • the DL-TDOA positioning method will be described in detail below in conjunction with Figure 3.
  • the base station in Figure 3 can be replaced by TRP, TP, RP, cell, etc.
  • the principle of DL-TDOA is that the target UE receives downlink signals (such as PRS) from multiple TPs, and the target UE uses the assistance data (assistance data) received from the LMF to measure the DL RSTD (reference signal time difference, reference) of the PRS sent by multiple TPs. signal time difference), and calculate the location information of the target UE based on the DL RSTD.
  • the plurality of TPs include a reference TP, for example, the reference TP corresponds to the serving base station of the target UE.
  • multiple TPs also include at least two adjacent TPs.
  • DL RSTD is the downlink relative time difference (DL relative timing difference) between the adjacent TP and the reference TP.
  • the downlink relative time difference can be defined as time A minus Time B, where time A is the start time when the target UE receives a subframe from the neighboring TP, and time B is the corresponding start time when the target UE receives a subframe from the reference TP, which subframe is closest in time to the neighboring TP. Subframe received by TP.
  • Figure 3 is a schematic diagram of the DL-TDOA positioning method.
  • the serving base station 102 sends PRS1 to UE101 at time t1', and UE101 receives PRS1 at time t1.
  • the neighboring base station 103 sends PRS2 to UE101 at time t2', and UE101 receives PRS2 at time t2.
  • the base station 104 sends PRS3 to the UE101 at time t3', and the UE101 receives the PRS3 at time t3.
  • the distance difference between any point on curve 1 in Figure 3 and the serving base station 102 and the neighboring base station 103 is a fixed value ⁇ S2.
  • the distance difference between any point on the curve 2 and the serving base station 102 and the neighboring base station 104 is a fixed value ⁇ S3.
  • Curve 1 The intersection point with curve 2 is the position of UE101.
  • the location information of UE101 can be calculated.
  • RSTD 1,2 represents the DL RSTD of the PRS sent by the serving base station 102 and the neighboring base station 103
  • RSTD 1,3 represents the DL RSTD of the PRS sent by the serving base station 102 and the neighboring base station 104.
  • the location information of the target UE can be calculated by LMF, which can be called LMF-based or UE-assisted.
  • LMF LMF-based or UE-assisted.
  • the target UE and/or the base station need to report to the LMF the DLRSTD of the PRS received by the target UE from multiple base stations.
  • the LMF calculates the target UE based on the DLRSTD reported by the UE and/or the base station. location information.
  • the target UE can also calculate its own location information, which can be called UE-based. As shown in Figure 3, if it is UE-based, the target UE can calculate its own location information based on the DLRSTD of the PRS received from multiple base stations.
  • the RSTD in the above formula (1) and formula (2) can also be determined by the received subframe boundary difference between each neighboring TP and the reference TP, for example
  • the received subframe boundary difference is RSTD.
  • the received subframe boundary difference can be understood as the subframe boundary difference of multiple TPs on the target UE side, or can also be understood as the subframe boundary difference of multiple TPs.
  • the calculation method of receiving subframe boundary difference can refer to the calculation method of the downlink relative time difference of DL RSTD mentioned above.
  • the starting time when the target UE receives a subframe from the adjacent TP minus the time when the target UE receives a subframe from the reference TP.
  • the PRS sending time difference in the above formula (1) and formula (2) can be represented by the difference in the sending subframe boundary between each neighboring TP and the reference TP, for example
  • the sending subframe boundary difference is the PRS sending time difference
  • the sending subframe boundary difference can also be understood as the subframe boundary difference of multiple TPs.
  • the calculation method of the sending subframe boundary difference can refer to the calculation method of the downlink relative time difference of the above-mentioned DL RSTD. For example, for example, the starting time of the neighboring TP sending a subframe to the target UE, minus the reference TP sending a subframe to the target UE. The corresponding start time of the subframe that is closest in time to the subframe sent by the neighboring TP.
  • the above subframe boundary difference may be replaced by a frame boundary difference. It is understood that the boundary difference can be replaced by the time difference of the boundary.
  • RSTD 1,2 in formula (1) can be reported to LMF by UE101
  • t1' can be determined by LMF according to the PRS1 configuration information of the serving base station 102
  • t2' can be determined by LMF according to the neighboring base station 103
  • the PRS2 configuration information of get can be reported to LMF by UE101
  • t1' can be determined by LMF according to the PRS1 configuration information of the serving base station 102
  • t2' can be determined by LMF according to the neighboring base station 103
  • the PRS2 configuration information of get The PRS2 configuration information of get.
  • RSTD 1 and 3 in formula (2) can be reported to LMF by UE101, and t1' can be reported by LMF from serving base station 102 obtained from the PRS1 configuration information of the neighboring base station 104, t3' can be obtained by the LMF from the PRS3 configuration information of the neighboring base station 104, or t1' is the subframe boundary of the serving base station 102, t3' is the subframe boundary of the neighboring base station 104, t3'- t1' can be obtained from the subframe boundary difference between the neighboring base station 104 and the serving base station 102.
  • RSTD 1,2 in formula (1) can be measured by the UE itself
  • t1' can be determined by UE101 based on the PRS1 configuration information sent by the LMF
  • t2' can be determined by the UE101 based on the PRS2 sent by the LMF.
  • the configuration information determines that, alternatively, t1' is the subframe boundary of the serving base station 102, t2' is the subframe boundary of the neighboring base station 103, and t2'-t1' can be obtained by the subframe boundary difference between the serving base station 102 and the neighboring base station 103.
  • t1' can be determined by UE based on the PRS1 configuration information sent by LMF
  • t3' can be determined by UE101 based on PRS3 sent by LMF.
  • the configuration information determines that, alternatively, t1' is the subframe boundary of the serving base station 102, t3' is the subframe boundary of the adjacent base station 104, and t3'-t1' can be obtained from the subframe boundary difference between the serving base station 102 and the adjacent base station 104.
  • the principle of the UL-TDOA positioning method is to calculate the location information of the target UE using the UL relative time of arrival (RTOA) of the uplink signals (such as SRS) sent by the target UE to multiple RPs.
  • RTOA is the start time of the subframe containing the uplink signal received by the RP, relative to the RTOA reference time.
  • the RP measures the UL-RTOA of the received signal (e.g. SRS) using the assistance data obtained from the positioning server. That is to say, the LMF calculates the location information of the UE based on the time difference between multiple RPs receiving the SRS sent by the UE.
  • the specific description of the UL-TDOA positioning method will not be repeated here.
  • the current positioning method is mainly based on the reference signal of the Uu interface for positioning
  • a side link is introduced in the positioning scenario based on the Uu interface, that is, at least one network element or terminal that can send the reference signal of the PC5 interface is introduced in the positioning scenario or Entity (such as roadside unit (RSU)).
  • the reference signal based on the Uu interface and the sidelink reference signal based on the PC5 interface are needed to locate the target UE in the positioning scenario.
  • the positioning scenario only Position the target UE based on the sidelink reference signal of the PC5 interface.
  • the LMF or the target UE cannot accurately calculate the location information of the target UE.
  • the adjacent base station 104 is replaced by an RSU.
  • the RSU can send the sidelink reference signal of the PC5 interface (hereinafter, the sidelink reference signal of the PC5 interface is (SL-PRS example), at this time, in the DL-TDOA positioning scenario shown in Figure 3, the reference signal based on the Uu interface and the sidelink reference signal based on the PC5 interface are needed to position the UE101, because the LMF or UE101 transmits to the neighboring base station 104 There is a difference in the way of determining the time of PRS3 (that is, t3') and the way of determining the sending time of the SL-PRS sent by the RSU. Therefore, the LMF or UE101 cannot accurately calculate the location information of the UE101.
  • the sidelink reference signal of the PC5 interface is (SL-PRS example)
  • this application proposes a positioning method that can effectively solve the above technical problems.
  • the location information of the target UE can be calculated by the target UE itself or by the LMF.
  • the process of positioning the target UE by the target UE and the LMF will be described in detail below with reference to the accompanying drawings.
  • Figure 4 is a schematic flow chart of a positioning method provided by an embodiment of the present application.
  • the LMF calculates the location information of the target UE, and the method may include the following steps.
  • the second network device obtains first information.
  • the first information includes synchronization information of the second terminal device.
  • the synchronization information of the second terminal device includes synchronization information of the second terminal device and the synchronization source of the second terminal device.
  • the first information includes the synchronization information of the second terminal device and the synchronization source of the second terminal device.
  • the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link.
  • the second network device in the embodiment of the present application is a device with a location management function.
  • the second network device may be part of the core network, or may be integrated into the network device.
  • the second network device may be the LMF shown in Figures 1 and 2, or a location management component (LMC) in the service network device of the terminal device to be located.
  • the second network device may also be called a positioning management device or a positioning center. This application does not limit the name of the positioning management device. In future evolution technologies, the positioning management device may also be given other names. In all the embodiments of this application, the second network device is used as the positioning management device as an example for description.
  • the first terminal device is the target UE.
  • the first terminal device can be regarded as UE101
  • the second terminal device can be regarded as RSU
  • the positioning management device can be regarded as LMF105.
  • one or more second terminal devices that assist in locating the position of the first terminal device may be included, and this application does not limit this.
  • the second terminal device is used to assist in locating the position of the first terminal device.
  • the first terminal device receives the side row reference signal from the second terminal device, and/or the first terminal device sends the second terminal device to the second terminal device.
  • the terminal device sends a side-link reference signal to assist the positioning management device in locating the position of the first terminal device.
  • the synchronization information of the second terminal device includes the time difference between the subframe boundaries of the second terminal device and the serving network device of the second terminal device.
  • the time difference between the second terminal device and the subframe boundary of the serving network device of the second terminal device may be the time difference between the second terminal device and the downlink subframe boundary of the serving network device of the second terminal device, or may also be the time difference between the second terminal device and the subframe boundary of the serving network device of the second terminal device.
  • the time difference between the uplink subframe boundary of the device and the serving network device of the second terminal device may be the time difference between the second terminal device and the downlink subframe boundary of the serving network device of the second terminal device, or may also be the time difference between the second terminal device and the subframe boundary of the serving network device of the second terminal device.
  • the time difference between the subframe boundary of the second terminal device and the serving network device of the second terminal device includes timing advance (timing advance, TA) information of the second terminal device.
  • timing advance timing advance
  • the synchronization information of the second terminal device is TA/ 2.
  • the synchronization information of the second terminal device includes the time difference between the subframe boundaries of the second terminal device and the serving network device of the second terminal device.
  • the synchronization information of the second terminal device may be determined by the distance between the second terminal device and the serving network device of the second terminal device.
  • the second terminal device and the serving network device of the second terminal device are determined by positioning.
  • the method determines the distance information between the second terminal device and the service network device of the second terminal device, or the location information of the second terminal device, etc.
  • the positioning method may be multiple cell-round trip time (Multi-RTT). ), UL-TDOA, UL-TDOA and other arbitrary positioning methods.
  • the synchronization information of the second terminal device can be obtained through the distance information between the second terminal device and the service network device of the second terminal device, or the location information of the second terminal device, or the like.
  • the synchronization information of the second terminal device includes a direct frame number (DFN) of the second terminal device. Time offset (offsetDFN).
  • DFN direct frame number
  • offsetDFN Time offset
  • the positioning management device may obtain the first information through any of the following methods.
  • Method 1 The positioning management device receives the first information from the second terminal device.
  • the positioning management device obtains the first information mainly includes the following steps:
  • the positioning management device sends a first request message to the second terminal device.
  • the first request message is used to request the second terminal device. Synchronization information of end devices.
  • the second terminal device receives the first request message from the positioning management device.
  • the first request message is used to request the synchronization information of the second terminal device. It can also be understood that the first request message includes the first request information, and the first request information is used to request the second terminal device. Device synchronization information.
  • the second terminal device In response to the received first request message, the second terminal device sends a first request response message to the positioning management device, where the first request response message includes the first information.
  • the positioning management device receives the first request response message from the second terminal device.
  • Method 2 The positioning management device receives the first information from the service network device of the second terminal device. It can be understood that when the second terminal device is in the RRC connection state, the service network device of the second terminal device knows the synchronization information of the second terminal device, and the positioning management device can obtain the first information from the service network device of the second terminal device. .
  • the positioning management device receives the service network device corresponding information from each second terminal device.
  • the first information that is, the positioning management device receives synchronization information of multiple second terminal devices from multiple network devices respectively.
  • the service network device of the second terminal device may report the first information based on the request of the positioning management device.
  • obtaining the first information by the positioning management device mainly includes the following steps:
  • the positioning management device sends a second request message to the service network device of the second terminal device.
  • the second request message is used to request synchronization information of the second terminal device.
  • the service network device of the second terminal device receives the second request message from the positioning management device.
  • the second request message is used to request synchronization information of the second terminal device. It can also be understood that the second request message includes the second request information, and the second request information is used to request the second terminal device. Device synchronization information.
  • the second terminal device In response to the received second request message, the second terminal device sends a second request response message to the positioning management device, where the second request response message includes the first information.
  • the positioning management device receives a second request response message from the serving network device of the second terminal device.
  • the service network device of the second terminal device actively reports the first information to the positioning management device.
  • obtaining the first information by the positioning management device mainly includes the following steps:
  • the positioning management device sends a fourth request message to the serving network device of the second terminal device.
  • the fourth request message is used to request the configuration information of the sidelink reference signal of the second terminal device, wherein the sidelink reference signal of the second terminal device
  • the signal configuration information is used by the first terminal device to receive the sideline reference signal of the second terminal device.
  • the service network device of the second terminal device receives the fourth request message from the positioning management device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device. It can also be understood that the fourth request message includes fourth request information, and the fourth request information Used to request configuration information of the sidelink reference signal of the second terminal device.
  • the configuration information of the sidelink reference signal may include at least one of the following: resource configuration of the sidelink reference signal, such as time domain resources, frequency domain resources, or the first symbol in the time slot, the number of symbols, The sparse offset of the first symbol, the slot offset of the first slot of the resource set; the period of the sidelink reference signal and other information; the staggering pattern; the number of repetitions of the sidelink reference signal; Muting configuration of the side row reference signal.
  • resource configuration of the sidelink reference signal such as time domain resources, frequency domain resources, or the first symbol in the time slot, the number of symbols, The sparse offset of the first symbol, the slot offset of the first slot of the resource set; the period of the sidelink reference signal and other information; the staggering pattern; the number of repetitions of the sidelink reference signal; Muting configuration of the side row reference signal.
  • the service network device of the second terminal device sends the third request message to the positioning management device.
  • the fourth request response message includes the configuration information of the sidelink reference signal of the second terminal device and the first information
  • the service network device of the second terminal device after the service network device of the second terminal device receives the fourth request message, even if the positioning management device does not request the synchronization information of the second terminal device, the service network device of the second terminal device based on the subsequent For positioning needs, the configuration information of the side-link reference signal of the second terminal device and the synchronization information of the second terminal device can also be directly sent to the positioning management device at the same time.
  • the serving network device of the second terminal device may also separately send the first information and the fourth request response message to the positioning management device, that is, the fourth request response message includes the configuration information of the sideline reference signal of the second terminal device,
  • the first information is carried in other messages.
  • the positioning management device can also obtain the first information through the method given below or other implementation methods, that is, after receiving the fourth request message, the service network device of the second terminal device reports it through the fourth request response message.
  • Configuration information of the side-link reference signal of the second terminal device but does not report synchronization information of the second terminal device, which is not specifically limited in this application.
  • the configuration information of the sidelink reference signal of the second terminal device included in the fourth request response message may be directly determined by the serving network device of the second terminal device, or may be determined by the second terminal device. . It will be described below in conjunction with Figure 5 .
  • Figure 5 is a schematic flow chart of a positioning management device provided by this application to obtain the configuration information of the sidelink reference signal of the second terminal device.
  • Figure 5 includes the processes corresponding to determination method 1 and determination method 2.
  • the service network device of the second terminal device directly determines the configuration information of the sidelink reference signal of the second terminal device.
  • the determination method 1 mainly includes the following steps:
  • the positioning management device sends a fourth request message to the first network device.
  • the first network device is a service network device of the second terminal device.
  • the positioning management device receives the fourth request message from the first network device.
  • the first network device determines the configuration information of sideline reference signals of one or more second terminal devices within its coverage.
  • the first network device may only determine the identity of the one or more second terminal devices requested by the positioning management device. Configuration information of the sidelink reference signal.
  • the first network device determines the configuration information of the sideline reference signal of each second terminal device within its coverage. .
  • the first network device sends a fourth request response message to the positioning management device, where the fourth request response message includes configuration information of sidelink reference signals corresponding to one or more second terminal devices within the coverage of the first network device.
  • the fourth request response message includes the identities of the one or more second terminal devices requested by the positioning management device. Configuration information of the sidelink reference signal.
  • the fourth request response message includes side rows of all second terminal devices within the coverage of the first network device. Reference signal configuration information.
  • the first network device sends the configuration information of the respective sidelink reference signals to one or more second terminal devices within its coverage.
  • the first network device sends a second message to the second terminal device, and the second message includes the second terminal device.
  • Configuration information of the side row reference signal After the configuration information of the sidelink reference signal of a second terminal device is determined in S503, the first network device sends a second message to the second terminal device, and the second message includes the second terminal device. Configuration information of the side row reference signal.
  • the first network device sends a second message to one of the multiple second terminal devices respectively.
  • the second message includes configuration information of the sidelink reference signal of the second terminal device.
  • the first network device may also send the configuration information to only one second terminal device among the multiple second terminal devices.
  • Configuration information of sidelink reference signals of multiple second terminal devices For example, the first network device sends a second message to the one second terminal device, where the second message includes the configuration information of the sideline reference signals of the plurality of second terminal devices.
  • the plurality of second terminal devices may be the second terminal devices requested by the positioning management device in the fourth request message.
  • the second terminal device determines the configuration information of the sidelink reference signal of the second terminal device.
  • the determination method 2 mainly includes the following steps:
  • the positioning management device sends a fourth request message to the first network device.
  • the first network device is a service network device of the second terminal device.
  • the positioning management device receives the fourth request response message from the first network device.
  • the first network device in response to the received fourth request message, sends a fifth request message to the second terminal device, where the fifth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal device receives the fifth request message from the first network device.
  • the fifth request message is used to request the configuration information of the sidelink reference signal of the second terminal device. It can also be understood that the fifth request message includes the fifth request information, and the fifth request information is Requesting to configure the configuration information of the sidelink reference signal of the second terminal device.
  • the first network device may only request one or more second terminal devices requested by the positioning management device in the fourth request message.
  • a plurality of second terminal devices send a fifth request message.
  • the first network device may send the fifth request message to all second terminal devices within its coverage.
  • the second terminal device determines the configuration information of the sideline reference signal of the second terminal device.
  • the second terminal device sends a fifth request response message, where the fifth response request message includes configuration information of the sidelink reference signal of the second terminal device.
  • the first network device receives the fifth request response message from the second terminal device.
  • the first network device sends a fourth request response message to the positioning management device.
  • the fourth request response message includes one or more identifiers requested by the location management device in the fourth request message. Configuration information of the side row reference signal of the second terminal device.
  • the first terminal device needs to receive or send the sidelink reference signal based on the configuration information of the sidelink reference signal of the second terminal device.
  • the above describes how the positioning management device obtains the configuration information of the side-link reference signal of the second terminal device.
  • how the first terminal device obtains the configuration information of the side-link reference signal of the second terminal device is explained with reference to FIG. 5 .
  • the first terminal device obtains the configuration information of the sideline reference signal of the second terminal device from the positioning management device. Specifically, as shown in Figure 5, S510, the positioning management device sends a first configuration message to the first terminal device, where the first configuration message includes configuration information of the sidelink reference signal of the second terminal device. Correspondingly, the first terminal device receives the first configuration message from the positioning management device.
  • the positioning management device needs to send the configuration information of the sideline reference signals of multiple second terminal devices to the first terminal device, then the positioning management device can send the configuration information of the multiple second terminal devices to the first terminal device respectively.
  • the identifier of each second terminal device and the configuration information of the sideline reference signal of each second terminal device that is, the identifier of the second terminal device corresponds one-to-one to the configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device needs to send the configuration information of the sideline reference signals of multiple second terminal devices to the first terminal device, then the positioning management device can send the identifiers of multiple second terminal devices to the first terminal device. and configuration information of side-link reference signals of multiple second terminal devices, where the identifiers of the multiple second terminal devices correspond one-to-one to the configuration information of side-link reference signals of multiple second terminal devices.
  • the second terminal device is taken as an RSU as an example to illustrate the one-to-one correspondence between the identifiers of multiple second terminal devices and the configuration information of the sideline reference signals of the multiple second terminal devices.
  • a message carries the configuration information of the sidelink reference signal of the RSU in the order of RSU#1, RSU#2 and RSU#3, then the message also needs to carry the configuration information of the sidelink reference signal of the RSU in the order of RSU#1, RSU#2 and RSU#3.
  • the sequence carries the identity of the RSU. If the configuration information of the sidelink reference signal of the RSU is carried in the order of RSU#2, RSU#1 and RSU#3 in a message, the message also needs to be carried in the order of RSU#2, RSU#1 and RSU#3. The sequence carries the identity of the RSU.
  • the one-to-one correspondence means that the first terminal device needs to be able to determine the configuration information of the side-link reference signals of RSU#1, RSU#2, and RSU#3 according to the corresponding method.
  • the positioning management device configures a list, which includes multiple configuration information, and each configuration includes the identity of the RSU and the configuration information of the sideline reference signal of the RSU.
  • one-to-one correspondence can also be achieved through other correspondence methods, which will not be described again here.
  • the first configuration message may also include first information.
  • the first terminal device obtains the configuration information of the sideline reference signal of the second terminal device from the second terminal device.
  • the second terminal device sends a second configuration message to the first terminal device, where the second configuration message includes configuration information of the sidelink reference signal of the second terminal device.
  • the first terminal device receives the second configuration message from the second terminal device.
  • the second configuration message may also include the first information.
  • a unicast connection is established between the first terminal device and the second terminal device, and the second terminal device sends the configuration information of the sideline reference signal of the second terminal device to the first terminal device based on the unicast connection. .
  • a unicast connection is not established between the first terminal device and the second terminal device.
  • the second terminal device sends the configuration information of the side-link reference signal of the second terminal device to the first terminal device through broadcast or multicast.
  • the second terminal device may also send the configuration information of the sideline reference signals of other second terminal devices to the first terminal device. This application does not limit this.
  • Method 3 The positioning management device receives the first information from the first terminal device.
  • the first terminal device can obtain the synchronization information of the second terminal device from the second terminal device, and then send it to the positioning management device. For example, if the first terminal device and the second terminal device have established a unicast connection, the second terminal device sends the synchronization information of the second terminal device to the first terminal device in a unicast manner, where the second terminal device
  • the synchronization information may be carried in an RRC reconfiguration message or other RRC dedicated message on the side link between the first terminal device and the second terminal device; or, a unicast connection is not established between the first terminal device and the second terminal device.
  • the second terminal device sends the synchronization information of the second terminal device to the first terminal device through broadcast or multicast.
  • the first terminal device may report the first information based on the request of the positioning management device.
  • the positioning management device obtains the first information mainly through the following steps:
  • the positioning management device sends a third request message to the first terminal device.
  • the third request message is used to request synchronization information of the second terminal device.
  • the first terminal device receives the third request message from the positioning management device.
  • the third request message is used to request synchronization information of the second terminal device. It can also be understood that the third request message includes the third request information, and the third request information is used to request the second terminal device. Device synchronization information.
  • the first terminal device In response to the received third request message, the first terminal device sends a third request response message to the positioning management device, where the third request response message includes the first information.
  • the positioning management device receives the third request response message from the first terminal device.
  • the first terminal device actively reports the first information to the positioning management device.
  • the positioning management device obtains the first information mainly through the following steps:
  • the first terminal device When the first terminal device reports the measurement result of the first reference signal to the positioning management device, the first terminal device also reports the first information of one or more second terminal devices corresponding to the measurement result at the same time. That is to say, the first terminal device always reports the measurement results and the first information together to the positioning management device.
  • the first reference signal includes a side row reference signal sent by the second terminal device to the first terminal device (ie, the reference signal of the PC5 interface) or a side row reference signal sent by the first terminal device to the second terminal device, such as the first terminal device.
  • a reference signal includes SL-PRS.
  • the first reference signal also includes a reference signal sent to the first terminal device by the network device that assists in locating the location of the first terminal device (ie, the reference signal of the Uu interface).
  • the first reference signal includes SL-PRS and DL -PRS.
  • the first reference signal also includes a reference signal of the Uu interface sent by the first terminal device, such as the first reference signal.
  • a reference signal of the Uu interface such as SRS
  • the first reference signal also includes a reference signal of the Uu interface sent by the first terminal device, such as the first reference signal.
  • the second network device determines the location information of the first terminal device according to the synchronization information of the second terminal device.
  • the second network device positioning management device
  • the second network device positioning management device
  • the RSU sends an SL-PRS to the UE 101 at time T3
  • the formula (1) remains unchanged
  • t3' in formula (2) needs to be replaced by T3
  • the serving base station 102, the neighboring base station 103 and the neighboring base station 104 maintain synchronization, or the transmission subframe boundary difference between the serving base station 102, the neighboring base station 103 and the neighboring base station 104 is known, when LMF-based, LMF105 can determine t3'-t1', but after introducing RSU, LMF105 does not know the synchronization information of RSU, so it cannot determine T3-t1', that is, it cannot accurately calculate the location information of UE101. In this application, by obtaining the synchronization information of the RSU, the LMF105 can accurately calculate the location information of the UE101.
  • the RSTD is determined by the sideline reference signal of the PC5 interface and the reference signal of the Uu interface.
  • the RSTD 1 and 3 in the above formula (3) are obtained by the UE based on the sidelink reference signal sent by the RSU and the positioning reference signal sent by the serving base station 102.
  • RSTD 1, 3 in formula (3) is the relative time difference.
  • the relative time difference can be defined as time C minus time D, where time C is the starting time when the target UE (ie UE101) receives a subframe from the RSU.
  • Time D is the time when the target UE receives the corresponding start time of a subframe from the reference TP (i.e., the serving base station 102) that is closest in time to the subframe received from the RSU.
  • the RSTD is only determined by the PC5 interface sidelink reference signal.
  • the serving base station 102, the adjacent base station 103 and the adjacent base station 104 as an example, the RSTD 1 , 2 of the above formula (2) and the RSTD 1, 3 of the formula (3) are obtained based on the sidelink reference signal sent by the UE based on the RSU. of.
  • the RSTD 1,2 in equation (2) and the RSTD 1,3 in equation (3) are not exactly the same as the DL RSTD at this time, but you can refer to the above DL How RSTD is calculated.
  • RSTD 1,2 in formula (2) is the relative time difference, which can be defined as time E minus time F, where time E is the start time when the target UE receives a subframe from RSU 2 , and time F is the target The corresponding start time of the UE receiving a subframe from reference RSU 1 , which is closest in time to the subframe received from RSU 2 ;
  • RSTD 1, 3 in formula (3) is the relative time difference, and the relative time difference can It is defined as time G minus time F, where time E is the start time when the target UE receives a subframe from RSU 3 , and time F is the corresponding start time when the target UE receives a subframe from reference RSU 1.
  • the subframe is at time The subframe closest to that received from RSU 3 .
  • the synchronization source of the RSU may be the service network device of the RSU or GNSS.
  • the synchronization sources of the RSUs when at least one RSU is introduced in the positioning scenario, it is not limited that the synchronization sources of the RSUs must be the same. That is to say, when at least one RSU is introduced in the positioning scenario, the synchronization source of the RSU can be only the service network device of the RSU, or the synchronization source of the RSU can only be GNSS.
  • the synchronization source of some RSUs can be the RSU's Serving network equipment, the synchronization source of some other RSUs is GNSS, which is not limited in this application.
  • the location information of the target UE can be obtained based on the reference signal of the Uu interface and the reference signal of the PC5 interface, or the location information of the target UE can be obtained based only on the reference signal of the Uu interface and the reference signal of the PC5 interface.
  • the side row reference signal of the PC5 interface is obtained, which will not be described again here.
  • the first terminal device can also report to the positioning management device the identity of the second terminal device that can be used to locate its own position, so as to avoid the second terminal device that does not need to send the sidelink reference signal.
  • the terminal device also sends the side-link reference signal to the first terminal device, resulting in a waste of resources.
  • the method may also include the following steps:
  • the first terminal device sends a first message to the positioning management device, where the first message includes the identification of the second terminal device.
  • the positioning management device receives the first message from the first terminal device,
  • the positioning management device sends the first indication information to the third terminal device.
  • the first indication information indicates that the third terminal device does not need to send the sideline reference signal to the first terminal device.
  • the third terminal device is all terminal devices except the second terminal. Terminal equipment other than the terminal equipment corresponding to the identification of the device.
  • all terminal devices in 2) request assistance in positioning all networks of the first terminal device for the positioning management device.
  • All terminal equipment covered by network equipment, or all terminal equipment covered by all network equipment that requests assistance in locating the first terminal equipment for the positioning management equipment, these terminal equipment are relatively close to the first terminal equipment, or all terminal equipment
  • the device is all second terminal devices corresponding to the configuration information of the sideline reference signal of the second terminal device included in the first configuration message sent by the positioning management device to the first terminal device in S510, or all the terminal devices are the All second terminal devices in the second configuration message sent by the first terminal device.
  • the method for the positioning management device to obtain the first information is described in detail above in conjunction with Figure 4 .
  • the following is a specific implementation process for two possible positioning management devices in Figure 6 and Figure 7 to calculate the location information of the first terminal device based on the method shown in Figure 4.
  • Figure 6 is a schematic flow chart of a positioning management device provided by this application for calculating the location information of the first terminal device.
  • the method may include the following steps.
  • the positioning initiator initiates positioning of the first terminal device, and the positioning management device interacts with the first terminal device in terms of capabilities, such as executing a capability transmission process.
  • the first terminal device sends the identification of the second terminal device that can receive the sidelink signal to the positioning management device.
  • the identifier of the second terminal device is the identifier of the RSU.
  • the positioning management device may refer to the identification of the second terminal device sent by the first terminal device to determine which terminal device to use to assist in locating the location of the first terminal device.
  • the identifier may be a layer 2 identifier, or the identifier may be an identifier negotiated between the first terminal device and the positioning management device, which is not limited in this application.
  • the positioning management device sends a fourth request message to the first network device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the first network device is a service network device of the second terminal device.
  • the first network device receives the fourth request message from the positioning management device.
  • the first network device sends a fourth request response message to the positioning management device, where the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device receives the fourth request response message from the first network device.
  • the first network device can send a request to the positioning management device in the fourth request response message.
  • the synchronization information of the second terminal device is sent, that is, the fourth request response message also includes the first information. If the second terminal device is in a non-RRC connection state before S602 or at the time of S602, and the first network device does not know the synchronization information of the second terminal device, then the first network device cannot send a request to the positioning management device in the fourth request response message at this time.
  • the synchronization information of the second terminal device is sent, that is, the fourth request response message does not include the first information.
  • the first terminal device obtains the configuration information of the sidelink reference signal of the second terminal device.
  • the first terminal device may report to the positioning management device the identity of the second terminal device that can be used to locate its own location, so as to avoid a waste of resources caused by all terminal devices sending sideline reference signals to the first terminal device.
  • the positioning management device can instruct all terminal devices except the second terminal device that there is no need to send the sideline reference signal to the first terminal device.
  • all terminal devices are all terminal devices covered by all network devices that request assisted positioning of the first terminal device for the positioning management device, or all terminal devices request assisted positioning for the positioning management device. Terminal devices covered by all network devices of the first terminal device, these terminal devices are relatively close to the first terminal device, or all terminal devices are included in the first configuration message sent by the positioning management device to the first terminal device in S510. All second terminal devices corresponding to the configuration information of the side-link reference signal of the included second terminal device, or all the terminal devices are all second terminal devices in the second configuration message sent to the first terminal device in S520.
  • the positioning management device sends a first positioning request message to the first terminal device.
  • the first positioning request message is used to request the first terminal device to measure the first reference signal, or to request positioning measurement of the first terminal device.
  • the first terminal device receives the first positioning request message from the positioning management device.
  • the first reference signal includes a side row reference signal sent by the second terminal device to the first terminal device (ie, the reference signal of the PC5 interface) or a side row reference signal sent by the first terminal device to the second terminal device, such as the first terminal device.
  • a reference signal includes SL-PRS.
  • the first reference signal also includes a reference signal sent to the first terminal device by the network device that assists in locating the location of the first terminal device (ie, the reference signal of the Uu interface).
  • the first reference signal includes SL-PRS and DL -PRS.
  • the positioning scenario also involves a reference signal of the Uu interface (such as SRS) sent by the first terminal device
  • the first reference signal also includes a reference signal of the Uu interface sent by the first terminal device, such as the first reference signal.
  • a reference signal of the Uu interface such as SRS
  • a unicast connection is established between the first terminal device and the second terminal device, and the second terminal device sends the first reference signal to the first terminal device based on the unicast connection.
  • the second terminal device sends the first reference signal to the first terminal device alone.
  • the second terminal device sends the first reference signal to each first terminal device respectively.
  • a terminal device sends a first reference signal.
  • the second terminal device sends the first reference signal to at least one first terminal device at the same time. At this time, when the second terminal device needs to send the first reference signal to multiple first terminal devices, the sending method is similar to broadcasting. , the second terminal device only needs to send the first reference signal once.
  • no unicast connection is established between the first terminal device and the second terminal device, and the second terminal device sends the first reference signal to the first terminal device through broadcast or multicast. This application does not limit this.
  • the method of sending the first reference signal introduced above is not only applicable to the second terminal device sending the first reference signal to the first terminal device, but also applicable to the first terminal device sending the first reference signal to the second terminal device. . This application does not limit this.
  • the first positioning request message is LPP request location information.
  • the first terminal device measures the first reference signal and obtains the first measurement result.
  • the first measurement result obtained by the first terminal device includes RSTD, for example, includes the RSTD obtained by the first terminal device based on the first terminal device transmitting sideline reference signals with one or more second terminal devices.
  • the first measurement result also includes information such as the identification of the second terminal device.
  • the first terminal device sends a first positioning request response message to the positioning management device, where the first positioning request message includes the first measurement result.
  • the first terminal device may also report time information corresponding to the first reference signal to the positioning management device. For example, the first terminal device transmits (receives or sends) the frame number and subframe number of the SL-PRS.
  • the positioning management device may execute S612.
  • the positioning management device may When the first network device requests the first information, S608 and S609 are executed. Alternatively, the positioning management device may request the first information from the second terminal device and perform S610 and S611. For example, if the second terminal device is not in the RRC connected state before S602 or at the time of S602, for example, the second terminal device is in the RRC idle state or the RRC deactivated state, the positioning management device does not obtain the second terminal device's second terminal device from the first network device. information, the positioning management device may request the first network device or the second terminal device for the first information of the second terminal device included in the first measurement result based on the first measurement result reported by the first terminal device.
  • the positioning management device sends a second request message to the first network device.
  • the second request message is used to request synchronization information of the second terminal device.
  • the first network device receives the second request message from the positioning management device.
  • the second request message includes identities of one or more second terminal devices.
  • the positioning management device may determine which second terminal devices it needs synchronization information based on the first measurement result, and then request the synchronization information of these second terminal devices from the serving network device of these second terminal devices.
  • the service network devices of these second terminal devices may be the same network device or different network devices.
  • the positioning management device can determine based on the first measurement result that it is necessary to obtain the synchronization information of RSU#1, RSU#2 and RSU#3.
  • the service network devices of RSU#1 and RSU#2 are Base station #1 (i.e., an example of the first network device), and the serving base station of RSU #3 is base station #2 (i.e., another example of the first network device), then the positioning management device sends a request message #1 (i.e., the first network device) to the base station #1 An example of two request messages), request message #1 is used to request synchronization information of RSU#1 and RSU#2, request message #1 includes the identification of RSU#1 and RSU#2; the positioning management device sends a request message to base station #2 #2 (that is, another example of the second request message), request message #2 is used to request synchronization information of RSU #3, and request message #2 includes the identifier of RSU3.
  • request message #1 is used to request synchronization information of RSU#1 and RSU#2
  • request message #1 includes the identification of RSU#1 and RSU#2
  • the positioning management device sends a request message to base station #2 #2 (that is, another example of the
  • Positioning management device Positioning management device Positioning management device S609 In response to the received second request message, the first network device sends a second request response message to the positioning management device, where the second request response message includes the first information. Correspondingly, the positioning management device receives the second request response message from the first network device. After that, S612 is executed.
  • the second request response message includes the first information of one or more second terminal devices requested by the location management device in the second request message.
  • request message #1 and request message #2 in S608 will continue taking request message #1 and request message #2 in S608 as an example.
  • the base station #1 sends a request response message #1 to the positioning management device.
  • the request response message #1 includes the synchronization information of RSU #1 and RSU #2.
  • the base station #2 sends a request response message #2 to the positioning management device.
  • the request response message #2 includes the synchronization information of the RSU #3.
  • the positioning management device sends a first request message to the second terminal device.
  • the first request message is used to request synchronization information of the second terminal device.
  • the second terminal device receives the first request message from the positioning management device.
  • the second terminal device In response to the received first request message, the second terminal device sends a first request response message to the positioning management device, where the first request response message includes the first information.
  • the positioning management device receives the first request response message from the second terminal device. After that, S612 is executed.
  • the positioning management device determines the location information of the first terminal device according to the first information.
  • the location management device determines the location information of the first terminal device according to the first information and the first measurement result.
  • the location management device determines the location information of the first terminal device according to the first information and the first measurement result.
  • Figure 7 is a schematic flow chart of another positioning management device provided by this application calculating the position information of the first terminal device.
  • the method may include the following steps.
  • the first network device sends a fourth request response message to the positioning management device, where the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device receives the fourth request response message from the first network device.
  • the first network device may send a message in the fourth request response message.
  • the synchronization information of the second terminal device is sent to the positioning management device, that is, the fourth request response message also includes the first information. If the second terminal device is in a non-RRC connection state before S702 or at the time of S702, and the first network device does not know the synchronization information of the second terminal device, then the first network device cannot send a request to the positioning management device in the fourth request response message at this time.
  • the synchronization information of the second terminal device is sent, that is, the fourth request response message does not include the first information.
  • the first network device does not send the synchronization information of the second terminal device to the positioning management device regardless of whether it knows the synchronization information of the second terminal device.
  • the first terminal device obtains the configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal device sends the first information to the first terminal device.
  • the first terminal device receives the first information from the second terminal device.
  • the positioning management device sends a first positioning request message to the first terminal device.
  • the first positioning request message is used to request the first terminal device to measure the first reference signal, or to request positioning measurement of the first terminal device.
  • the first terminal device receives the first positioning request message from the positioning management device.
  • the first positioning request message also includes the first positioning request information.
  • the first positioning request information includes the identification of one or more second terminal devices. , at this time, the first positioning request message can be used to request synchronization information of the second terminal device.
  • the first terminal device measures the first reference signal and obtains the first measurement result.
  • the first terminal device sends a first positioning request response message to the positioning management device, where the first positioning request response message includes the first measurement result.
  • the positioning management device receives the first positioning request response message from the first terminal device.
  • the first positioning request message also includes the identification of one or more second terminal devices.
  • the first positioning request message can be used to request the If the identification of one or more second terminal devices corresponds to the synchronization information of the second terminal device, then the first positioning request response message in this step also includes the first information of the one or more second terminal devices.
  • the RRC status of the second terminal device is not distinguished in this step, and the first terminal device may actively report the first information of one or more second terminal devices corresponding to the first measurement result.
  • the positioning management device determines the location information of the first terminal device according to the first information.
  • the location management device determines the location information of the first terminal device according to the first information and the first measurement result.
  • the location management device determines the location information of the first terminal device according to the first information and the first measurement result.
  • the process of the positioning management device calculating the location of the target UE has been described in detail above.
  • the process of the target UE itself calculating the location of the target UE will be described below with reference to FIG. 8 .
  • Figure 8 is a schematic flow chart of another positioning method provided by an embodiment of the present application.
  • the target UE calculates the location information of the target UE, and the method may include the following steps.
  • the first terminal device obtains first information, the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization information of the second terminal device and the synchronization source of the second terminal device, where the first The second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link.
  • the first terminal device can be regarded as UE101, and the second terminal device can be regarded as RSU.
  • one or more second terminal devices that assist in locating the position of the first terminal device may be included, and this application does not limit this.
  • the synchronization information of the second terminal device refer to the description in S401, which will not be described again here.
  • the first terminal device may obtain the first information through any of the following methods.
  • Method 4 The first terminal device receives the first information from the positioning management device.
  • the first terminal device obtains the first information mainly includes the following steps:
  • the positioning management device sends a first configuration message to the first terminal device.
  • the first configuration message includes configuration information of the sidelink reference signal of the second terminal device and first information, wherein the configuration information of the sidelink reference signal of the second terminal device Used by the first terminal device to receive the side row reference signal of the second terminal device.
  • the first terminal device receives the first configuration message from the positioning management device.
  • the positioning management device may also send the first information and the first configuration message separately, that is, the first configuration message includes the configuration information of the sidelink reference signal of the second terminal device, and the first information is carried in other messages.
  • the positioning management device may also send the first information and the configuration information of the sidelink reference signal of the second terminal device separately, that is, the positioning management device separately sends the first information including the configuration information of the sidelink reference signal of the second terminal device. a configuration message, and a first configuration message including first information.
  • the positioning management device obtains the first information and the configuration information of the side-link reference signal of the second terminal device in this method, please refer to the description of method one and method two in S401, which will not be described again here.
  • Method 5 The first terminal device receives the first information from the second terminal device.
  • first terminal device and the second terminal device communicate based on the side link in the PC5 interface.
  • the first terminal device can obtain the first information from the second terminal device through the PC5 interface.
  • the first terminal device obtains the first information mainly includes the following steps:
  • the second terminal device sends a second configuration message to the first terminal device.
  • the second configuration message includes the configuration information of the sidelink reference signal of the second terminal device and the first information, where the configuration information of the sidelink reference signal of the second terminal device The information is used by the first terminal device to receive the sideline reference signal of the second terminal device.
  • the first terminal device receives the second configuration message from the second terminal device.
  • the second terminal device may also send the first information and the second configuration message separately, that is, the second configuration message includes the configuration information of the sideline reference signal of the second terminal device, and the first information is carried in other messages.
  • the second terminal device may also send the first information and the configuration information of the sideline reference signal of the second terminal device separately, that is, the second terminal device separately sends the configuration information including the sidelink reference signal of the second terminal device. a second configuration message, and a second configuration message including the first information.
  • the first terminal device determines the location information of the first terminal device according to the first information.
  • the first terminal device can also report to the positioning management device the identity of the second terminal device that can be used to locate its own position, so as to prevent the second terminal device that does not need to send the side-link reference signal from also sending the side-link reference signal to the first terminal device. Waste of resources caused by reference signals.
  • the method may also include the following steps:
  • the first terminal device sends a first message to the positioning management device, where the first message includes the identification of the second terminal device.
  • the positioning management device receives the first message from the first terminal device,
  • the positioning management device sends the first indication information to the third terminal device.
  • the first indication information indicates that the third terminal device does not need to send a reference signal to the first terminal device.
  • the third terminal device is all terminal devices except the second terminal device. Identifies other terminal devices other than the corresponding terminal device.
  • all terminal devices in 2) are all terminal devices covered by all network devices that request assistance in positioning the first terminal device for the positioning management device, or all terminal devices request assistance in positioning all networks of the first terminal device for the positioning management device.
  • Terminal devices covered by the device these terminal devices are relatively close to the first terminal device, or all terminal devices are on the side of the second terminal device included in the first configuration message sent by the positioning management device to the first terminal device in S510.
  • All second terminal devices corresponding to the configuration information of the row reference signal, or all second terminal devices are all second terminal devices in the second configuration message sent to the first terminal device in S520.
  • the method for the first terminal device to obtain the first information is described in detail above with reference to FIG. 8 .
  • the following is a specific implementation process for two possible first terminal devices to calculate the position of the first terminal device in Figure 9 and Figure 10 based on the method shown in Figure 8 .
  • Figure 9 is a schematic flow chart of a first terminal device calculating location information of the first terminal device provided by this application.
  • the method may include the following steps.
  • the positioning initiator initiates positioning of the first terminal device, and the positioning management device interacts with the first terminal device in terms of capabilities, such as executing a capability transmission process.
  • the positioning management device sends a fourth request message to the first network device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the first network device is a service network device of the second terminal device.
  • the first network device receives the fourth request message from the positioning management device.
  • the first network device sends a fourth request response message to the positioning management device, where the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device receives the fourth request response message from the first network device.
  • the first network device can send a request to the positioning management device in the fourth request response message.
  • the synchronization information of the second terminal device is sent, that is, the fourth request response message also includes the first information. If the second terminal device is in a non-RRC connection state before S902 or at the time of S902, and the first network device does not know the synchronization information of the second terminal device, then the first network device cannot send a request to the positioning management device in the fourth request response message at this time. Send to second terminal
  • the synchronization information of the device, that is, the fourth request response message does not include the first information.
  • the first terminal device obtains the configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device may send the first terminal device to the first terminal device. information.
  • the location management device may request the first information from the first network device, and then perform S905 and S906.
  • the positioning management device may request the first information from the second terminal device and perform S907 and S908.
  • the positioning management device does not obtain the second terminal device's second terminal device from the first network device. If a piece of information is obtained, the positioning management device may request the first network device or the second terminal device for the first information of the second terminal device.
  • the positioning management device sends a second request message to the first network device.
  • the second request message is used to request synchronization information of the second terminal device.
  • the first network device receives the second request message from the positioning management device.
  • the first network device In response to the received second request message, the first network device sends a second request response message to the positioning management device, where the second request response message includes the first information.
  • the positioning management device receives the second request response message from the first network device. After that, S909 is executed.
  • the positioning management device sends a first request message to the second terminal device.
  • the first request message is used to request synchronization information of the second terminal device.
  • the second terminal device receives the first request message from the positioning management device.
  • the second terminal device In response to the received first request message, the second terminal device sends a first request response message to the positioning management device, where the first request response message includes the first information.
  • the positioning management device receives the first request response message from the second terminal device. After that, S909 is executed.
  • the positioning management device sends the first information to the first terminal device.
  • the first terminal device receives the first information from the positioning management device.
  • the positioning management device may obtain the configuration information of the sidelink reference signal of the second terminal device.
  • the information and the first information are sent to the first terminal device at the same time.
  • the first terminal device measures the first reference signal and obtains the first measurement result.
  • the first terminal device determines the location information of the first terminal device according to the first information.
  • the first terminal device determines the location information of the first terminal device according to the first information and the first measurement result.
  • the specific process of determining the location of the first terminal device please refer to the above description, which will not be described again here.
  • Figure 10 is a schematic flow chart of another first terminal device provided by this application for calculating the location information of the first terminal device.
  • the method may include the following steps.
  • the positioning initiator initiates positioning of the first terminal device, and the positioning management device interacts with the first terminal device. Capabilities, such as executing capability transfer processes.
  • the positioning management device sends a fourth request message to the first network device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the first network device is a service network device of the second terminal device.
  • the first network device receives the fourth request message from the positioning management device.
  • the first network device sends a fourth request response message to the positioning management device, where the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device.
  • the positioning management device receives the fourth request response message from the first network device.
  • the first network device can send a request to the positioning management device in the fourth request response message.
  • the synchronization information sent to the second terminal device also includes the first information. If the second terminal device is in a non-RRC connection state before S1002 or at the time of S1002, and the first network device does not know the synchronization information of the second terminal device, then the first network device cannot send a request to the positioning management device in the fourth request response message at this time.
  • the synchronization information of the second terminal device is sent, that is, the fourth request response message does not include the first information.
  • the first network device does not send the synchronization information of the second terminal device to the positioning management device regardless of whether it knows the synchronization information of the second terminal device.
  • the first terminal device obtains the configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal device sends the first information to the first terminal device.
  • the first terminal device receives the first information from the second terminal device.
  • S1004 and S1005 may occur at the same time, that is, the second terminal device sends the configuration information of the sideline reference signal of the second terminal device and the first information to the first terminal device at the same time.
  • the first terminal device obtains the configuration information of the sideline reference signal of the second terminal device from the positioning management device, and the first terminal device obtains the first information from the second terminal device.
  • the first terminal device measures the first reference signal and obtains the first measurement result.
  • the first terminal device determines the location information of the first terminal device according to the first information.
  • the first terminal device determines the location information of the first terminal device according to the first information and the first measurement result.
  • the first reference signal and the specific process of determining the location of the first terminal device refer to the above description, which will not be described again here.
  • obtaining the first information is a necessary step in this application, and other steps may be optional steps in all embodiments of the application.
  • each step in the above-mentioned FIG. 4 to FIG. 10 is only an exemplary description and is not strictly limited.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
  • the equipment in the existing network architecture is mainly used as an example for illustrative description. It should be understood that the embodiments of the present application are not limited to the specific form of the equipment. For example, devices that can achieve the same functions in the future are applicable to the embodiments of this application.
  • the number of nouns means “singular noun or plural noun", that is, “one or more”, unless otherwise specified.
  • At least one means one or more
  • plural means two or more.
  • “And/or” describes the relationship between 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, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an "or” relationship.
  • A/B means: A or B.
  • At least one of the following or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c Can be single or multiple.
  • the ordinal words such as "first” and “second” mentioned in the embodiment of this application are used to distinguish multiple objects and are not used to limit the size, content, order, timing, priority or importance of multiple objects.
  • the first request message and the second request message can be the same message or different messages, and this name does not indicate the content, size, application scenario, sender/receiver of the two messages. end, priority or importance.
  • the numbering of steps in the various embodiments introduced in this application is only to distinguish different steps and is not used to limit the order between steps. For example, S503 may occur before S504, or may occur after S504, or may occur simultaneously with S504.
  • the methods and operations implemented by the device can also be implemented by components of the device (such as chips or circuits), without limitation.
  • embodiments of the present application also provide corresponding devices, and the devices include modules for executing corresponding modules in each of the above method embodiments.
  • the module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above method embodiments are also applicable to the following device embodiments.
  • the methods and operations implemented by devices can also be implemented by components of the device (such as chips or circuit) implementation.
  • terminal equipment and network equipment include corresponding hardware structures and/or software modules for performing each function.
  • Embodiments of the present application can divide the terminal device or network device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module according to each function.
  • FIG. 11 is a schematic block diagram of the communication device 1000 provided by this application.
  • the device 100 includes a transceiver unit 1100 and a processing unit 1200.
  • the transceiver unit 1100 can be used to implement corresponding communication functions.
  • the transceiver unit 1100 may also be called a communication interface or a communication unit.
  • the processing unit 1200 may be used to process data or information.
  • the device 1000 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 1200 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the terminal equipment can be used to store instructions and/or data, and the processing unit 1200 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the actions of the terminal equipment can be used to store instructions and/or data
  • the processing unit 1200 can read the instructions and/or data in the storage unit, so that the device implements each of the foregoing method embodiments.
  • the device 1000 can be used to perform the actions performed by the first terminal device in the above method embodiments.
  • the device 1000 can be the first terminal device or a component of the first terminal device,
  • the transceiving unit 1100 is configured to perform transceiver-related operations on the first terminal device side in the above method embodiment, and the processing unit 1200 is configured to perform processing-related operations on the first terminal device side in the above method embodiment.
  • the transceiver unit 1100 obtains first information, where the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization of the second terminal device and the synchronization source of the second terminal device.
  • the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link;
  • the processing unit 1200 is used by the first terminal device according to the first terminal device.
  • a piece of information determines the location information of the first terminal device.
  • the transceiver unit 1100 is specifically configured to receive the first information from the second network device of the positioning management function network element.
  • the transceiver unit 1100 is specifically configured to receive the first information from the second terminal device.
  • the transceiver unit 1100 is specifically configured to receive a first configuration message from the second network device of the positioning management function network element.
  • the first configuration message includes the configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal device The configuration information of the sidelink reference signal is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the first configuration message also includes first information.
  • the transceiver unit 1100 is specifically configured to receive a second configuration message from the second terminal device.
  • the second configuration message includes configuration information of the sidelink reference signal of the second terminal device.
  • the sidelink reference signal of the second terminal device The configuration information is used by the first terminal device to receive the sideline reference signal of the second terminal device; the second configuration message also includes the first information.
  • the transceiver unit 1100 is also configured to send a first message to the second network device of the positioning management function network element, where the first message includes the identity of the second terminal device.
  • the second terminal device is a group of terminal devices, and the group of terminal devices includes one or more terminal devices.
  • the device 1000 can implement steps or processes corresponding to those executed by the first terminal device in the method embodiments according to the embodiments of the present application.
  • the device 1000 can include a first terminal device for executing the embodiments shown in Figures 4 to 10.
  • the transceiver unit 1100 obtains the first information, the first information includes the synchronization information of the second terminal device, and the synchronization information of the second terminal device includes the second terminal device and the synchronization source of the second terminal device. Synchronization information, in which the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the transceiver unit 1100 is also used to provide the positioning management function The second network device of the network element sends the first information.
  • the transceiver unit 1100 is specifically configured to receive the first information from the second terminal device.
  • the transceiver unit 1100 is specifically configured to receive a second configuration message from the second terminal device.
  • the second configuration message includes configuration information of the sidelink reference signal of the second terminal device.
  • the sidelink reference signal of the second terminal device The configuration information is used by the first terminal device to receive the sideline reference signal of the second terminal device; the second configuration message also includes the first information.
  • the transceiver unit 1100 is also configured to send a first message to the second network device of the positioning management function network element, where the first message includes the identity of the second terminal device.
  • the second terminal device is a group of terminal devices, and the group of terminal devices includes one or more terminal devices.
  • the device 1000 can implement steps or processes corresponding to those executed by the first terminal device in the method embodiments according to the embodiments of the present application.
  • the device 1000 can include a first terminal device for executing the embodiments shown in Figures 4 to 10.
  • the device 1000 can be used to perform the actions performed by the second network device in the above method embodiments.
  • the device 1000 can be the second network device or a component of the second network device.
  • the transceiving unit 1100 is configured to perform transceiver-related operations on the second network device side in the above method embodiment
  • the processing unit 1200 is configured to perform processing-related operations on the second network device side in the above method embodiment.
  • the transceiver unit 1100 is used to obtain first information.
  • the first information includes synchronization information of the second terminal device.
  • the synchronization information of the second terminal device includes the synchronization source of the second terminal device and the second terminal device. Synchronization information, wherein the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the processing unit 1200 is used to determine the location of the first terminal device according to the second terminal device's location.
  • the synchronization information of the device determines the location information of the first terminal device.
  • the transceiver unit 1100 is specifically configured to receive the first information from the second terminal device.
  • the transceiver unit 1100 is specifically configured to receive the first information from the service network device of the second terminal device.
  • the transceiver unit 1100 is specifically configured to receive the first information from the first terminal device.
  • the transceiver unit 1100 is also used to send a first request message to the second terminal device.
  • the first request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also used to receive a message from the second terminal device.
  • the first request response message includes the first information.
  • the transceiver unit 1100 is also configured to send a second request message to the service network device of the second terminal device.
  • the second request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also configured to receive data from the second terminal device.
  • second The terminal device serves a second request response message of the network device, where the second request response message includes the first information.
  • the transceiver unit 1100 is also used to send a third request message to the first terminal device, and the third request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also used to receive a message from the first terminal device.
  • the third request response message includes the first information.
  • the transceiver unit 1100 is also configured to send a fourth request message to the serving network device of the second terminal device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal The configuration information of the sidelink reference signal of the device is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the transceiver unit 1100 is also used to receive the fourth request response message from the service network device of the second terminal device,
  • the fourth request response message includes configuration information of the sidelink reference signal of the second terminal device; the fourth request response message includes the first information.
  • the transceiver unit 1100 is also configured to send a first configuration message to the first terminal device.
  • the first configuration message includes the configuration information of the sidelink reference signal of the second terminal device, and the configuration information of the sidelink reference signal of the second terminal device.
  • the configuration information is used by the first terminal device to receive the sideline reference signal of the second terminal device; the first configuration message also includes first information.
  • the transceiver unit 1100 is also configured to receive a first message from the first terminal device, where the first message includes the identification of the second terminal device; the transceiver unit 1100 is also configured to send the first indication information to the third terminal device.
  • the first instruction information indicates that the third terminal device does not need to send a reference signal to the first terminal device, and the third terminal device requests assisted positioning of the target terminal for the second network device among all terminal devices covered by all network devices except the second terminal device. external terminal equipment.
  • the second terminal device is a group of terminal devices, and the group of terminal devices includes one or more terminal devices.
  • the device 1000 can implement steps or processes corresponding to the execution of the second network device in the method embodiments according to the embodiments of the present application.
  • the device 1000 can include steps for executing the second network device in the embodiments shown in Figures 4 to 10.
  • the unit of execution of the method The specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the transceiver unit 1100 is used to obtain first information, where the first information includes synchronization information of the second terminal device, and the synchronization information of the second terminal device includes synchronization of the second terminal device and the second terminal device.
  • the synchronization information of the source wherein the second terminal device is used to assist in locating the position of the first terminal device, and the second terminal device communicates with the first terminal device through a side link; the transceiver unit 1100 is also used to send a message to the third terminal device.
  • a terminal device sends the first information.
  • the transceiver unit 1100 is specifically configured to receive the first information from the second terminal device.
  • the transceiver unit 1100 is specifically configured to receive the first information from the service network device of the second terminal device.
  • the transceiver unit 1100 is also used to send a first request message to the second terminal device.
  • the first request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also used to receive a message from the second terminal device.
  • the first request response message includes the first information.
  • the transceiver unit 1100 is also configured to send a second request message to the service network device of the second terminal device.
  • the second request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also configured to receive data from the second terminal device.
  • the second terminal device serves a second request response message of the network device, and the second request response message includes the first information.
  • the transceiver unit 1100 is also configured to send a fourth request message to the serving network device of the second terminal device.
  • the fourth request message is used to request configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal The configuration information of the side-link reference signal of the device is used by the first terminal device to receive the side-link reference signal of the second terminal device; the transceiver unit 1100, also configured to receive a fourth request response message from the service network device of the second terminal device, where the fourth request response message includes the configuration information of the sideline reference signal of the second terminal device; the fourth request response message includes the first information .
  • the transceiver unit 1100 is also configured to send a first configuration message to the first terminal device.
  • the first configuration message includes the configuration information of the sidelink reference signal of the second terminal device, and the configuration information of the sidelink reference signal of the second terminal device.
  • the configuration information is used by the first terminal device to receive the sideline reference signal of the second terminal device; the first configuration message also includes first information.
  • the transceiver unit 1100 is also configured to receive a first message from the first terminal device, where the first message includes the identification of the second terminal device; the transceiver unit 1100 is also configured to send the first indication information to the third terminal device.
  • the first instruction information indicates that the third terminal device does not need to send a reference signal to the first terminal device, and the third terminal device requests assisted positioning of the target terminal for the second network device among all terminal devices covered by all network devices except the second terminal device. external terminal equipment.
  • the second terminal device is a group of terminal devices, and the group of terminal devices includes one or more terminal devices.
  • the device 1000 can implement steps or processes corresponding to those performed by the second network device in the method embodiments according to the embodiments of this application.
  • the device 1000 can include a method for executing the second network device in the embodiments shown in Figures 4 to 10.
  • the unit of methods that the device executes The specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the device 1000 can be used to perform the actions performed by the first network device in the above method embodiments.
  • the device 1000 can be the first network device or a component of the first network device.
  • the transceiving unit 1100 is configured to perform transceiver-related operations on the first network device side in the above method embodiment
  • the processing unit 1200 is configured to perform processing-related operations on the first network device side in the above method embodiment.
  • the transceiver unit 1100 is used to obtain first information.
  • the first information includes synchronization information of the second terminal device.
  • the first network device is the serving network device of the second terminal device.
  • the second terminal device is used to To assist in locating the position of the first terminal device, the second terminal device communicates with the first terminal device through a side link; the transceiver unit 1100 is also used to send the first information to the second network device.
  • the transceiver unit 1100 is also configured to receive a second request message from the second network device.
  • the second request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 is also configured to send the second request message to the second network device.
  • a second request response message is sent, and the second request response message includes the first information.
  • the transceiver unit 1100 is also configured to receive a fourth request message from the second network device.
  • the fourth request message is used to request configuration information of the side row reference signal of the second terminal device.
  • the configuration information of the row reference signal is used by the first terminal device to receive the side row reference signal of the second terminal device; the transceiver unit 1100 is also used to send a fourth request response message to the second network device, where the fourth request response message includes the second Configuration information of the sidelink reference signal of the terminal device; the fourth request response message also includes the first information.
  • the transceiver unit 1100 is also configured to send a second message to the second terminal device, where the second message includes the configuration information of the sideline reference signal of the second terminal device.
  • the transceiver unit 1100 is also configured to send a fifth request message to the second terminal device.
  • the fifth request message is used to request the configuration information of the sideline reference signal of the second terminal device; the transceiver unit 1100 is also configured to receive A fifth request response message from the second terminal device, the fifth response request message includes configuration information of the sidelink reference signal of the second terminal device.
  • the second terminal device is a group of terminal devices, and the group of terminal devices includes one or more terminal devices.
  • the apparatus 1000 can implement the steps corresponding to the execution of the first network device in the method embodiment according to the embodiment of the present application.
  • the apparatus 1000 may include a unit for executing the method executed by the first network device in the embodiments shown in FIGS. 4 to 10 .
  • the specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the device 1000 can be used to perform the actions performed by the second terminal device in the above method embodiments.
  • the device 1000 can be the second terminal device or a component of the second terminal device.
  • the transceiver unit 1100 is configured to perform transceiver-related operations on the second terminal device side in the above method embodiment
  • the processing unit 1200 is configured to perform processing-related operations on the second terminal device side in the above method embodiment.
  • the processing unit 1200 is used to determine the synchronization information of the second terminal device.
  • the synchronization information of the second terminal device includes the synchronization information of the second terminal device and the synchronization source of the second terminal device; the transceiver unit 1100, Used to send first information to the first device, where the first information includes synchronization information of the second terminal device, wherein the second terminal device is used to assist in locating the position of the first terminal device, between the second terminal device and the first terminal device
  • the communication is carried out through the side link, and the first device is the first terminal device or the second network device of the positioning management function network element.
  • the transceiver unit 1100 is also used to receive a first request message from the first device, and the first request message is used to request synchronization information of the second terminal device; the transceiver unit 1100 , used to send a first response request message to the first device, where the first request response message includes first information.
  • the transceiver unit 1100 is also configured to send a second configuration message to the first device, where the second configuration message includes the configuration information of the sideline reference signal of the second terminal device.
  • the configuration information of the sidelink reference signal of the two terminal devices is used by the first terminal device to receive the sidelink reference signal of the second terminal device; the second configuration message also includes the first information.
  • the transceiver unit 1100 is also configured to receive a second message from the serving network device of the second terminal device, where the second message includes configuration information of the sidelink reference signal of the second terminal device.
  • the transceiver unit 1100 is also configured to receive a fifth request message from the serving network device of the second terminal device, where the fifth request message is used to request the configuration information of the sideline reference signal of the second terminal device; the transceiver unit 1100 , and is also used to send a fifth request response message to the serving network device of the second terminal device, where the fifth response request message includes configuration information of the sidelink reference signal of the second terminal device.
  • the device 1000 can implement steps or processes corresponding to the execution of the second terminal device in the method embodiments according to the embodiments of the present application.
  • the device 1000 can include a second terminal for executing the embodiments shown in Figures 4 to 10.
  • the unit of methods that the device executes The specific process of each unit performing the above corresponding steps has been described in detail in each of the above method embodiments, and will not be described again for the sake of brevity.
  • the device 1000 here is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor) for executing at least one software or firmware program etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a dedicated processor or a group processor
  • memory merged logic circuitry, and/or other suitable components to support the described functionality.
  • the apparatus 1000 can be specifically the first terminal device in the above embodiments, and can be used to execute various processes corresponding to the first terminal device in the above method embodiments and/or or steps; alternatively, the device 1000 may be specifically the second network device in the above embodiments, and may be used to perform various processes and/or steps corresponding to the second network device in the above method embodiments, or the device 1000 may be specifically It is the first network device in the above embodiments and can be used to perform various processes and/or steps corresponding to the first network device in the above method embodiments. Alternatively, the device 1000 can be specifically the second terminal in the above embodiments. The device can be used to perform the above method embodiments with the second terminal device. The corresponding processes and/or steps are not repeated here to avoid duplication.
  • the device 1000 of each of the above solutions has the function of realizing the corresponding steps performed by each device in the above method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes at least one module corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver ), other units, such as a processing unit, can be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • the above-mentioned transceiver unit 1100 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in Figure 11 can be the device in the aforementioned embodiment, or it can be a chip or a chip system, such as a system on chip (SoC).
  • the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip. No limitation is made here.
  • Figure 12 is a schematic structural diagram of the communication device 10 provided by this application.
  • the device 10 includes a processor 11 coupled to a memory 12 for storing computer programs or instructions and/or data.
  • the processor 11 is used for executing computer programs or instructions stored in the memory 12 or reading the memory 12
  • the stored data is used to execute the methods in the above method embodiments.
  • processors 11 there are one or more processors 11 .
  • the memory 12 is integrated with the processor 11 or is provided separately.
  • the device 10 also includes a transceiver 13, which is used for receiving and/or transmitting signals.
  • the processor 11 is used to control the transceiver 13 to receive and/or transmit signals.
  • the device 10 is used to implement the operations performed by the first terminal device in each of the above method embodiments.
  • the processor 11 is used to execute computer programs or instructions stored in the memory 12 to implement related operations of the first terminal device in each of the above method embodiments.
  • the device 10 is used to implement the operations performed by the second network device in each of the above method embodiments.
  • the processor 11 is used to execute computer programs or instructions stored in the memory 12 to implement related operations of the second network device in each of the above method embodiments. For example, the method performed by the second network device in the embodiment shown in Figures 4 to 10.
  • the device 10 is used to implement the operations performed by the first network device in each of the above method embodiments.
  • the processor 11 is used to execute computer programs or instructions stored in the memory 12 to implement related operations of the first network device in each of the above method embodiments. For example, the method performed by the first network device in the embodiment shown in Figures 4 to 10.
  • the device 10 is used to implement the operations performed by the second terminal device in each of the above method embodiments.
  • the processor 11 is used to execute computer programs or instructions stored in the memory 12 to implement the above methods.
  • Related operations of the second terminal device in the embodiment For example, the method executed by the second terminal device in the embodiment shown in Figures 4 to 10.
  • this application also provides a computer-readable storage medium.
  • Computer instructions are stored in the computer-readable storage medium. When the computer instructions are run on the computer, the methods in each method embodiment of the application are executed.
  • the application also provides a computer program product.
  • the computer program product includes computer program code or instructions. When the computer program code or instructions are run on a computer, the methods in each method embodiment of the application are executed.
  • this application also provides a chip, which includes a processor.
  • the memory used to store the computer program is provided independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the methods in each method embodiment of the present application are executed.
  • the chip may also include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit, etc.
  • the chip may also include a memory.
  • the present application also provides a communication system, including one or more of the first terminal device, the second network device, the first network device and the second terminal device in the embodiment of the present application.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has the ability to process signals. During the implementation process, each step of the above method embodiment can be completed through an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the processor can be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), or field programmable Gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable Gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the methods disclosed in the embodiments of the present application can be directly implemented by a hardware encoding processor, or executed by a combination of hardware and software modules in the encoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of storage. device.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

一种定位方法和通信装置，包括：第一终端设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第一终端设备根据第一信息确定第一终端设备的位置信息。该方法可以使第一终端设备在包含侧行通信的定位场景中准确计算第一终端设备的位置信息。

Description

定位方法和通信装置
本申请要求于2022年6月25日提交中国国家知识产权局、申请号为202210728631.X、申请名称为“定位方法和通信装置”的中国专利申请的优先权，以及，要求于2022年5月20日提交中国国家知识产权局、申请号为202210555591.3、申请名称为“一种通信方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信领域，并且更具体地，涉及一种定位方法和通信装置。
背景技术
目前的定位方法主要是在定位场景中基于Uu口的参考信号对目标终端设备进行定位，当该定位场景中引入侧行链路时，即定位场景中引入至少一个可以发送PC5接口的参考信号的网元或终端或实体(例如路侧单元(rode side unit，RSU))，此时，定位场景中需要基于Uu口的参考信号和基于PC5接口的参考信号对目标终端设备进行定位，或者，定位场景中仅需要基于PC5接口的参考信号对目标终端设备进行定位。但是，由于PC5接口的侧行参考信号的发送和接收与Uu口的参考信号的发送和接收存在差异，会导致无法准确计算出目标终端设备的位置信息。
发明内容
本申请实施例提供一种定位方法和通信装置，该方法可以在包含侧行通信的定位场景中准计算出目标终端设备的位置。
第一方面，提供了一种的定位方法，该方法可以由第一终端设备执行，或者，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第一终端设备执行为例进行说明。
该方法可以包括：第一终端设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第一终端设备根据第一信息确定第一终端设备的位置信息。
基于上述技术方案，当定位场景中辅助定位第一终端设备的位置的第二终端设备与第一终端设备通过侧行链路进行通信时，即该定位场景中需要基于PC5接口的侧行参考信号对第一终端设备进行定位时，第一终端设备可以通过获取的第二终端设备的同步信息，准确计算出第一终端设备的位置信息。
结合第一方面，在第一方面的某些实现方式中，第一终端设备获取第一信息，包括：第一终端设备接收来自第二网络设备的第一信息。
应理解，本申请中的第二网络设备是具有定位管理功能的设备，示例性地，第二网络 设备可以是核心网的一部分，或者可以集成到网络设备中。例如，第二网络设备可以是定位管理功能LMF，或者，是待定位终端设备的服务网络设备中的定位管理组件LMC。第二网络设备也可以称为定位管理设备或定位中心，本申请并不限定定位管理设备的名称，在未来演进技术中，定位管理设备也可能被赋予其他名称。结合第一方面，在第一方面的某些实现方式中，第一终端设备获取第一信息，包括：第一终端设备接收来自第二网络设备的第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
结合第一方面，在第一方面的某些实现方式中，第一终端设备获取第一信息，包括：第一终端设备接收来自第二终端设备的第一信息。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：第一终端设备接收来自第二终端设备的第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：第一终端设备向第二网络设备发送第一消息，第一消息包括第二终端设备的标识。
基于上述技术方案，第一终端设备可以向第二网络设备上报可用于定位自己位置的第二终端设备的标识，以避免不需要发送侧行参考信号的第二终端设备也向第一终端设备发送侧行参考信号而导致的资源浪费。
结合第一方面，在第一方面的某些实现方式中，第二终端设备为一个或多个终端设备。
第二方面，提供了一种的定位方法，该方法可以由第二网络设备执行，或者，也可以由第二网络设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第二网络设备执行为例进行说明。
该方法可以包括：第二网络设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第二网络设备根据第一信息确定第一终端设备的位置信息。
基于上述技术方案，当定位场景中辅助定位第一终端设备的位置的第二终端设备与第一终端设备通过侧行链路进行通信时，即该定位场景中需要基于PC5接口的参考信号对第一终端设备进行定位时，第二网络设备可以通过获取的第二终端设备的同步信息，准确计算出第一终端设备的位置信息。
结合第二方面，在第二方面的某些实现方式中，第二网络设备获取第一信息，包括：第二网络设备接收来自第二终端设备的第一信息。
结合第二方面，在第二方面的某些实现方式中，第二网络设备获取第一信息，包括：第二网络设备接收来自第二终端设备的服务基站网络设备的第一信息。
结合第二方面，在第二方面的某些实现方式中，第二网络设备获取第一信息，包括：第二网络设备接收来自第一终端设备的第一信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息，第二网络 设备接收来自第二终端设备的第一请求响应消息，第一请求响应消息包括第一信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备的服务基站网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息，第二网络设备接收来自第二终端设备的服务基站网络设备的第二请求响应消息，第二请求响应消息包括第一信息。
结合第二方面，在第二方面的某些实现方式中，第二网络设备向第一终端设备发送第三请求消息，第三请求消息用于请求第二终端设备的同步信息，第二网络设备接收来自第一终端设备的第三请求响应消息，第三请求响应消息包括第一信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备的服务基站网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二网络设备接收来自第二终端设备的服务基站网络设备的第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息包括第一信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二网络设备向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二网络设备接收来自第一终端设备的第一消息，第一消息包括第二终端设备的标识；第二网络设备向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送参考信号，第三终端设备为第二网络设备请求辅助定位第一终端设备的所有网络设备覆盖的所有终端设备中除第二终端设备之外的终端设备。
基于上述技术方案，第二网络设备接收来第一终端设备上报的可用于定位自己位置的第二终端设备的标识，并向第三终端设备发送第一指示信息，以避免不需要发送侧行参考信号的终端设备也向第一终端设备发送侧行参考信号而导致的资源浪费。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：第二终端设备为一个或多个终端设备。
第三方面，提供了一种的定位方法，该方法可以由第一终端设备执行，或者，也可以由第一终端设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第一终端设备执行为例进行说明。
该方法可以包括：第一终端设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第一终端设备向第二网络设备发送第一信息。
基于上述技术方案，当定位场景中辅助定位第一终端设备的位置的第二终端设备与第一终端设备通过侧行链路进行通信时，即该定位场景中需要基于PC5接口的参考信号对第一终端设备进行定位时，第一终端设备可以向第二网络设备发送第二终端设备的同步信息，使得第二网络设备能够准确计算出第一终端设备的位置信息。
结合第三方面，在第三方面的某些实现方式中，第一终端设备获取第一信息，包括：第一终端设备接收来自第二终端设备的第一信息。
结合第三方面，在第三方面的某些实现方式中，该方法还包括：第一终端设备接收来自第二终端设备的第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
结合第三方面，在第三方面的某些实现方式中，该方法还包括：第一终端设备向第二网络设备发送第一消息，第一消息包括第二终端设备的标识。
结合第三方面，在第三方面的某些实现方式中，第二终端设备为一个或多个终端设备。
第四方面，提供了一种的定位方法，该方法可以由第二网络设备执行，或者，也可以由第二网络设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第二网络设备执行为例进行说明。
该方法可以包括：第二网络设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第二网络设备向第一终端设备发送第一信息。
基于上述技术方案，当定位场景中辅助定位第一终端设备的位置的第二终端设备与第一终端设备通过侧行链路进行通信时，即该定位场景中需要基于PC5接口的参考信号对第一终端设备进行定位时，第二网络设备向第一终端设备发送第二终端设备的同步信息，从而使得第一终端设备能够准确计算出第一终端设备的位置信息。
结合第四方面，在第四方面的某些实现方式中，第二网络设备获取第一信息，包括：第二网络设备接收来自第二终端设备的第一信息。
结合第四方面，在第四方面的某些实现方式中，第二网络设备获取第一信息，包括：第二网络设备接收来自第二终端设备的服务基站网络设备的第一信息。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息，第二网络设备接收来自第二终端设备的第一请求响应消息，第一请求响应消息包括第一信息。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备的服务基站网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息，第二网络设备接收来自第二终端设备的服务基站网络设备的第二请求响应消息，第二请求响应消息包括第一信息。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第二网络设备向第二终端设备的服务基站网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二网络设备接收来自第二终端设备的服务基站网络设备的第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息包括第一信息。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第二网络设备向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息， 第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
结合第四方面，在第四方面的某些实现方式中，该方法还包括：第二网络设备接收来自第一终端设备的第一消息，第一消息包括第二终端设备的标识；第二网络设备向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送参考信号，第三终端设备为第二网络设备请求辅助定位目标终端的所有基站网络设备覆盖的所有终端设备中除第二终端设备之外的终端设备。
结合第四方面，在第四方面的某些实现方式中，第二终端设备为一个或多个终端设备。
第五方面，提供了一种的定位方法，该方法可以由第一网络设备执行，或者，也可以由第一网络设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第一网络设备执行为例进行说明。
该方法可以包括：第一网络设备获取第一信息，第一信息包括第二终端设备的同步信息，第一网络设备是第二终端设备的服务网络设备，第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；第一网络设备向第二网络设备发送第一信息。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：第一网络设备接收来自第二网络设备的第二请求消息，第二请求消息用于请求第二终端设备的同步信息；第一网络设备向第二网络设备发送第二请求响应消息，第二请求响应消息包括第一信息。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：第一网络设备接收来自第二网络设备的第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一网络设备向第二网络设备发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息还包括第一信息。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：第一网络设备向第二终端设备发送第二消息，第二消息包括第二终端设备的侧行参考信号的配置信息。
结合第五方面，在第五方面的某些实现方式中，该方法还包括：第一网络设备向第二终端设备发送第五请求消息，第五请求消息用于请求第二终端设备的侧行参考信号的配置信息；第一网络设备接收来自第二终端设备的第五请求响应消息，第五响应请求消息包括第二终端设备的侧行参考信号的配置信息。
结合第五方面，在第五方面的某些实现方式中，第二终端设备为一个或多个终端设备。
第六方面，提供了一种的定位方法，该方法可以由第二终端设备执行，或者，也可以由第二终端设备的组成部件(例如芯片或者电路)执行，对此不作限定，为了便于描述，下面以由第二终端设备执行为例进行说明。
该方法可以包括：第二终端设备确定第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息；第二终端设备向第一设备发送第一信息，第一信息包括第二终端设备的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信，第一设备为第一终端设备或第二网络设备。
结合第六方面，在第六方面的某些实现方式中，当第一设备为第二网络设备，该方法还包括：第二终端设备接收来自第一设备的第一请求消息，第一请求消息用于请求第二终端设备的同步信息；第二终端设备向第一设备发送第一响应请求消息，第一请求响应消息包括第一信息。
结合第六方面，在第六方面的某些实现方式中，当第一设备为第一终端设备，该方法还包括：第二终端设备向第一设备发送第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
结合第六方面，在第六方面的某些实现方式中，该方法还包括：第二终端设备接收来自第二终端设备的服务网络设备的第二消息，第二消息包括第二终端设备的侧行参考信号的配置信息。
结合第六方面，在第六方面的某些实现方式中，该方法还包括：第二终端设备接收来自第二终端设备的服务网络设备的第五请求消息，第五请求消息用于请求第二终端设备的侧行参考信号的配置信息；第二终端设备向第二终端设备的服务网络设备发送第五请求响应消息，第五响应请求消息包括第二终端设备的侧行参考信号的配置信息。
结合第一方面至第六方面，在某些实现方式中，第二终端设备的同步源为第二终端设备的服务基站网络设备，同步信息为第二终端设备与第二终端设备的服务基站网络设备的子帧边界的时间差。
结合第一方面至第六方面，在某些实现方式中，第二终端设备的同步源为全球导航卫星系统GNSS，同步信息为第二终端设备的直接帧号时间偏移offsetDFN。
第七方面，提供一种通信装置，该装置用于执行上述第一方面或第三方面提供的方法。具体地，该装置可以包括用于执行第一方面或第三方面以及第一方面或第三方面中任一种可能实现方式中的方法的单元和/或模块，如处理单元和/或通信单元。
在一种实现方式中，该装置为第一终端设备。当该装置为第一终端设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，该装置为用于第一终端设备中的芯片、芯片系统或电路。当该装置为用于第一终端设备中的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。可以理解的，该装置为用于第一终端设备中的芯片、芯片系统或电路时，第一方面或第三方面以及第一方面或第三方面中任一种可能实现方式中的方法中涉及的第一终端设备即为该装置。
第八方面，提供一种通信装置，该装置用于执行上述第二方面或第四方面提供的方法。具体地，该装置可以包括用于执行第二方面或第四方面以及第二方面或第四方面中任一种可能实现方式中的方法的单元和/或模块，如处理单元和/或通信单元。
在一种实现方式中，该装置为第二网络设备。当该装置为第二网络设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，该装置为用于第二网络设备中的芯片、芯片系统或电路。当该 装置为用于第二网络设备中的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。可以理解的，该装置为用于第二网络设备中的芯片、芯片系统或电路时，第二方面或第四方面以及第二方面或第四方面中任一种可能实现方式中的方法中涉及的第二网络设备即为该装置。
第九方面，提供一种通信装置，该装置用于执行上述第五方面提供的方法。具体地，该装置可以包括用于执行第五方面以及第五方面中任一种可能实现方式中的方法的单元和/或模块，如处理单元和/或通信单元。
在一种实现方式中，该装置为第一网络设备。当该装置为第一网络设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，该装置为用于第一网络设备中的芯片、芯片系统或电路。当该装置为用于第一网络设备中的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。可以理解的，该装置为用于第一网络设备中的芯片、芯片系统或电路时，第五方面以及第五方面中任一种可能实现方式中的方法中涉及的第一网络设备即为该装置。
第十方面，提供一种通信装置，该装置用于执行上述第六方面提供的方法。具体地，该装置可以包括用于执行第六方面以及第六方面中任一种可能实现方式中的方法的单元和/或模块，如处理单元和/或通信单元。
在一种实现方式中，该装置为第二终端设备。当该装置为第二终端设备时，通信单元可以是收发器，或，输入/输出接口；处理单元可以是至少一个处理器。可选地，收发器可以为收发电路。可选地，输入/输出接口可以为输入/输出电路。
在另一种实现方式中，该装置为用于第二终端设备中的芯片、芯片系统或电路。当该装置为用于第二终端设备中的芯片、芯片系统或电路时，通信单元可以是该芯片、芯片系统或电路上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等；处理单元可以是至少一个处理器、处理电路或逻辑电路等。可以理解的，该装置为用于第二终端设备中的芯片、芯片系统或电路时，第六方面以及第六方面中任一种可能实现方式中的方法中涉及的第二终端设备即为该装置。
第十一方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第一方面或第三方面以及第一方面或第三方面任意可能的实现方式中的方法。
第十二方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第二方面或第四方面以及第二方面或第四方面任意可能的实现方式中的方法。
第十三方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从 至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第五方面以及第五方面任意可能的实现方式中的方法。
第十四方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第六方面以及第六方面任意可能的实现方式中的方法。
第十五方面，提供一种计算机可读存储介质，该计算机可读存储介质存储用于设备执行的程序代码，该程序代码包括用于执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十六方面，提供一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十七方面，提供一种芯片，芯片包括处理器与通信接口，处理器通过通信接口读取存储器上存储的指令，执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
可选地，作为一种实现方式，芯片还包括存储器，存储器中存储有计算机程序或指令，处理器用于执行存储器上存储的计算机程序或指令，当计算机程序或指令被执行时，处理器用于执行上述第一方面或第二方面或第三方面或第四方面或第五方面或第六方面以及第一方面或第二方面或第三方面或第四方面或第五方面或第六方面中任一种可能实现方式中的方法。
第十八方面，提供一种通信系统，该通信系统包括第十一方面至第十四方面中所示的一个或多个通信设备。
附图说明
图1是适用于本申请实施例的无线通信系统100的示意图。
图2是适用于本申请实施例的无线通信系统200的示意图。
图3是DL-TDOA定位方法的示意图。
图4是本申请实施例提供的一种定位方法的示意性流程图。
图5是本申请提供的一种定位管理设备和第一终端设备获取第二终端设备的侧行参考信号的配置信息的示意性流程图。
图6是本申请提供的一种定位管理设备计算第一终端设备位置信息的示意性流程图。
图7是本申请提供的另一种定位管理设备计算第一终端设备的位置信息的示意性流程图。
图8是本申请实施例提供的一种定位方法的示意性流程图。
图9是本申请提供的一种第一终端设备计算第一终端设备的位置信息的示意性流程图。
图10是本申请提供的另一种第一终端设备计算第一终端设备的位置信息的示意性流程图。
图11为本申请提供的通信装置1000的示意性框图。
图12为本申请提供的通信装置10的示意性结构图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
本申请的技术方案可以应用于需要对终端设备进行定位的场景。例如，可以应用于采用到达时间差(time difference of arrival,TDOA)、下行到达时间差(downlink time difference of arrival，DL-TDOA)、上行到达时间差(uplink time difference of arrival，UL-TDOA)、增强型小区标识(enhanced cell identifier,E-CID)或多往返时间(multi round-trip time,multi-RTT)技术的定位场景中。
本申请实施例的技术方案可以应用于各种通信系统，例如：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)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)系统或新无线(new radio，NR)以及未来的通信系统，车到其它设备(vehicle-to-X V2X)，其中V2X可以包括车到互联网(vehicle to network，V2N)、车到车(vehicle to-vehicle，V2V)、车到基础设施(vehicle to infrastructure，V2I)、车到行人(vehicle to pedestrian，V2P)等、车间通信长期演进技术(long term evolution-vehicle，LTE-V)、车联网、机器类通信(machine type communication，MTC)、物联网(internet of things，IoT)、机器间通信长期演进技术(long term evolution-machine，LTE-M)，机器到机器(machine to machine，M2M)等。
本申请实施例中的终端设备可以指用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、音响设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请中的终端设备还可以是路侧通信单元(road side units，RSU)。RSU是车载容迟网络中部署在路边进行辅助通信的设施，它与骨干网直接相连，并且可以与车辆进行无线通信。相比车载容迟网络中的车辆，RSU具有更好的通信能力、覆盖范围和传输速度，而且可以同时与多辆车辆进行通信。此外，RSU还有较大的存储空间，可以存储信息，提高通信概率。因此，通过在道路交通系统中部署相关的RSU，一方面能有效地解决现有车载的互联网接入问题，另一方面，也能极大地增加车载之间的通信机会，通过RSU缓存消息，实现车与车之间消息的高效传递。
示例性地，终端设备中可以包括：无线资源控制(radio resource control，RRC)信令交互模块、媒体接入控制(media access control，MAC)信令交互模块、以及物理(physical，PHY)信令交互模块。其中，RRC信令交互模块可以为：网络设备和终端设备用于发送及接收RRC信令的模块。MAC信令交互模块可以为：网络设备和终端设备用于发送及接收媒体接入控制控制元素(media access control control element，MAC-CE)信令的模块。PHY信令及数据可以为：网络设备和终端设备用于发送及接收上行控制信令或下行控制信令、上下行数据或下行数据的模块。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备包括但不限于：全球移动通信(global system for mobile communications，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站B(nodeB，NB)，还可以是LTE系统中的演进型基站B(evolved nodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，还可以是无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、家庭基站(例如，home evolved nodeB，或home nodeB，HNB)、基带单元(baseband unit，BBU)，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，可以是WLAN中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等,可以是新型无线系统(new radio，NR)系统中的gNB或传输点(TRP或TP)，或者，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，本申请实施例并不限定。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，简称AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
为便于理解本申请实施例，首先对本申请实施例可能应用的通信系统进行说明。
图1是适用于本申请实施例的无线通信系统100的示意图。该通信系统100包括终端设备(图1中表示为UE)、无线接入网(图1中表示为下一代无线接入网(next generation radio access network，NG-RAN))与核心网。
无线接入网包括一个或多个下一代演进型节点B(next generation evolved node B， ng-eNB)和gNB。Ng-eNB表示接入5G核心网的LTE基站，gNB表示接入5G核心网的5G基站。Ng-eNB与gNB之间、或两个ng-eNB之间，或两个gNB之间通过Xn接口通信。Xn接口还可以称为XnAP接口。无线接入网通过NG-C接口连接到核心网。
核心网包括接入和移动性管理功能(access and mobility management function，AMF)与定位管理功能(location management function，LMF)等其他功能。
LMF负责支持有关UE的不同类型的位置服务，包括对UE的定位和向UE传输辅助数据。LMF可能与RAN，例如，ng-eNB或gNB，以及UE进行信号交互。例如，LMF与ng-eNB或gNB之间通过新空口定位协议副本(new radio positioning protocol annex，NRPPa)消息进行信息交互，例如，获取参考信号(position reference signal，PRS)、探测参考信号(sounding reference signal，SRS)的配置信息、小区定时、小区位置信息等。又例如，LMF与UE之间通过LTE定位协议(LTE positioning protocol，LPP)消息进行UE能力信息传递、辅助信息传递、测量信息传递等。
AMF实体可以从5G核心网(5G core，5GC)的位置服务(location services，LCS)实体接收与UE相关的位置服务请求，或者，AMF本身也可以代表特定UE启动一些位置服务，并将位置服务请求转发给LMF。
终端设备通过LTE-Uu接口经由ng-eNB连接到无线接入网。终端设备还可通过NR-Uu接口经由gNB连接到无线接入网。
应理解，该通信系统100中可以包括一个或多个基站(包括ng-eNB或gNB)。还应理解，该通信系统100中可以包括一个或多个终端设备，例如包括一个或多个终端设备组(如图1中所示的UE set)。一个gNB可以向一个或多个终端设备发送数据或控制信令。多个gNB也可以同时向一个终端设备发送数据或控制信令。
可选地，图1中的ng-eNB和gNB也可以替换为TRP、TP、接收点(reception point，RP)、小区等。
图2是适用于本申请实施例的无线通信系统200的示意图。如图2所示，该无线通信系统200可以包括至少一个终端设备，例如图2所示的UE101。该无线通信系统200可以还包括多个网络设备(比如，网络设备可以为基站(base station,BS)或者TRP，以下以基站为例)，其中，多个基站包括终端设备101的服务小区的基站以及服务小区的一个或多个邻小区的基站。服务小区的基站(也可以称为服务基站)如图2中所示的102，邻小区的基站(也可以称为邻基站)如图2中所示的103和104。网络设备和终端设备均可配置多个天线，网络设备与终端设备可使用多天线技术通信。
可选地，图2中的基站可以替换为TRP、TP、RP、小区等。
除了网络设备和终端设备外，该无线通信系统200中还可以包括LMF网元105。LMF网元105可以用于实现终端设备的位置估计。LMF网元105可以部署于核心网内部，即LMF网元105也属于一种核心网网元。LMF网元105可以通过AMF网元(图中未示出)与网络设备进行通信。为了便于描述，本申请实施例中将LMF网元通过AMF网元向网络设备发送信息简称为，LMF网元向网络设备发送信息。换句话说，本申请实施例中所称的LMF网元向网络设备发送消息可以理解为，该LMF网元先将信息发送至AMF网元，该AMF网元将该信息转发至该网络设备。可选地，若LMF网元与网络设备之间存在接口，该LMF网元可以直接将信息发送至网络设备。
在一些实施例中，LMF网元105的部分功能，例如定位管理组件(location management component，LMC)，可以集成在网络设备中。例如，服务小区的基站102以及两个邻小区的基站103和104都集成了LMC。集成在网络设备内的LMF网元的LMC向网络设备发送信息也可以认为是LMF网元向网络设备发送信息。
需要说明的是，图2中所示的通信系统的架构仅是作为示例，不限定采用其它的架构。例如，图2中示出了服务小区的基站102以及两个邻小区的基站103和104。显然，通信系统200中还可以包括更多个邻小区的基站。
在通信系统100和通信系统200中，LMF网元和基站之间通过NRPPa协议进行通信。LMF网元和UE之间通过LPP协议进行通信。其中，LMF通过NRPPa协议与基站之间交互小区信息，例如，小区的参考信号的配置信息、小区定时信息以及小区的地理位置信息等。LMF通过LPP协议与UE之间进行UE能力信息传递、辅助信息传递、测量信息传递等。
以下，对本申请实施例中的部分用语或概念进行解释说明，以便于本领域技术人员理解。
1、Uu接口(蜂窝通信接口)
终端和基站之间的通信接口，Uu通信必须要有基站参与，蜂窝网络覆盖。其特点是：实现长距离和更大范围的可靠通信。PC5接口和Uu接口可以共存。
2、PC5接口(直连通信接口)
终端与终端之间的通信接口，即车、人、道路基础设施之间的短距离直接通信接口，PC5通信不需要蜂窝网络覆盖，可以点对点通信。其特点是：通过直连、广播、网络调度的形式实现低时延、高容量、高可靠的通信。
应理解，区别于普通Uu接口中的下行链路(downlink，DL)和上行链路(uplink，UL)，PC5接口使用的直接通信链路称为侧行链路(sidelink，SL)。
3、RRC状态
NR中的RRC状态包括三种：RRC空闲态(RRC_IDLE)，RRC去激活态(RRC_INACTIVE)，RRC连接态(RRC_CONNECTED)。下面对三种RRC状态进行简单介绍。
①RRC_CONNECTED(RRC连接态)：RAN有UE的上下文，UE和RAN有信令连接。UE可接收RAN下发的控制UE进行数据传输、切换、通知UE相关调度信息的消息及系统消息，且RAN可接收UE反馈的信道质量信息。
②RRC_INACTIVE(RRC去激活态)：RAN和核心网之间保持连接，空口没有分配资源，能够使业务快速恢复，提升时延敏感应用体验，另外，处于去激活态的用户省电效果也能逼近空闲态，延长手机续航时间。
③RRC_IDLE(RRC空闲态)：RAN没有UE的上下文，UE和RAN没有信令连接，在此状态中，UE可接收系统消息和寻呼消息，进行小区选择和重选。当UE因为某个目的(业务请求，位置更新，寻呼等)需要和网络建立连接，则触发RRC连接建立，RRC连接建立后，则进入RRC连接态。
应理解，本申请中的RRC非连接态可以是RRC空闲态和/或RRC去激活态。本申请中的RRC非连接态可以替换为RRC空闲态和/或RRC去激活态。
4、TP：用于一个小区、一个小区的一部分或一个仅支持DL定位参考信号(positioning  reference signal，PRS)的TP的一组地理上共址的发射天线(例如具有一个或多个天线元件的天线阵列)。传输点可以包括基站(ng-eNB或gNB)天线、远端无线电头、基站的远端天线、仅支持DL-PRS TP的天线等。一个小区可以包括一个或多个传输点。对于同构部署，每个传输点可以对应一个小区。
5、TRP：一组地理上共址的天线(例如具有一个或多个天线元件的天线阵列)，支持TP和/或RP功能。
6、RP：用于一个小区、一个小区的一部分或一个仅UL信道探测参考信号(sounding reference signal，SRS)的RP的一组地理上共址的接收天线(例如具有一个或多个天线元件的天线阵列)。接收点可以包括基站(ng-eNB或gNB)天线、远端无线电头、基站的远端天线、仅支持UL-SRS RP的天线等。一个小区可以包括一个或多个接收点。对于同构部署，每个接收点可以对应一个小区。
定位是移动通信系统中的重要功能，要求系统能够实时地提供用户的位置信息。目前，可以通过定位技术对目标UE(target UE)进行定位，使发起定位服务的定位发起方获取到目标UE的位置信息。其中，定位发起方可以为LCS、UE、或者AMF网元等。例如：LCS向目标UE的服务AMF请求定位目标UE；或者，目标UE的服务AMF决定定位目标UE；或者，目标UE向其服务AMF请求定位服务，例如由于定位或传输辅助信息等发起请求。当定位服务被触发后，将由LMF进一步执行定位相关操作。LMF需要与基站交互，例如获取空口定位相关的辅助信息；LMF还需要与目标UE交互，例如能力传输流程，包括获取UE的定位能力、向UE提供定位相关的辅助信息等。
在现有的Uu口定位中，可以通过目标UE发送和/或接收基于Uu口的定位相关的参考信号进行定位，以及使用NR、LTE中支持的定位方法，实现对目标UE的定位。示例的，基于Uu口的定位相关的参考信号包括PRS和/或SRS，其中，PRS为下行信号，SRS为上行信号。
示例的，一种常用的蜂窝网络的定位方法为TDOA，TDOA包括下行到达时间差(downlink time difference of arrival，DL-TDOA)定位方法和上行到达时间差(uplink time difference of arrival，UL-TDOA)定位方法。DL-TDOA和UL-TDOA可以通过图1或图2所示的通信系统实现对目标UE的定位。需要说明是，TDOA需要辅助定位目标UE的基站之间高度时间同步。
下面结合图3对DL-TDOA定位方法进行详细描述。可选地，图3中的基站可以替换为TRP、TP、RP、小区等。DL-TDOA的原理是目标UE从多个TP接收下行信号(例如PRS)，目标UE使用从LMF接收的辅助数据(assistance data)测量多个TP发送的PRS的DL RSTD(reference signal time difference，参考信号时间差)，并根据该DL RSTD计算目标UE的位置信息。其中，该多个TP中包括一个参考TP，例如该参考TP对应于目标UE的服务基站。除了参考TP以外，多个TP还包括至少两个邻TP，可以理解，DL RSTD是邻TP与参考TP之间的下行相对时间差(DL relative timing difference)，该下行相对时间差可以定义为时间A减时间B，其中时间A为目标UE从邻TP接收一个子帧的开始的时间，时间B为目标UE从参考TP接收一个子帧的相应开始的时间，该子帧在时间上最接近从该邻TP接收到的子帧。
图3是DL-TDOA定位方法的示意图。作为示例，如图3所示，在使用DL-TDOA对 目标UE(即UE101)的定位过程中，服务基站102在t1’向UE101发送PRS1，UE101在时刻t1接收到PRS1，邻基站103在t2’向UE101发送PRS2，UE101在时刻t2接收到PRS2，邻基站104在t3’向UE101发送PRS3，UE101在时刻t3接收到PRS3。图3中的曲线1上的任意点到服务基站102和邻基站103的距离差为定值ΔS2，曲线2上的任意点到服务基站102和邻基站104的距离差为定值ΔS3，曲线1和曲线2的交点为UE101的位置。
由图3可以得到如下公式(1)和公式(2)：
ΔS2＝(t2-t2’)*c-(t1-t1’)*c＝{(t2-t1)-(t2’-t1’)}*c＝{RSTD1,2–(t2’-t1’)}*c(1)
ΔS3＝(t3-t3’)*c-(t1-t1’)*c＝{(t3-t1)-(t3’-t1’)}*c＝{RSTD1,3–(t3’-t1’)}*c(2)
只要通过上述公式可以得到ΔS2和ΔS3，这样就可以计算出UE101的位置信息。
可以理解，在图3所示的场景下，邻基站103和邻基站104均为邻TP，服务基站102为参考TP。其中，RSTD1,2表示服务基站102和邻基站103发送的PRS的DL RSTD，RSTD1,3表示服务基站102和邻基站104发送的PRS的DL RSTD。
可选地，目前的定位技术中可以由LMF计算目标UE的位置信息，可以称为LMF-based或者UE-assisted。如图3所示，如果为LMF-based，此时目标UE和/或基站需要向LMF上报目标UE从多个基站接收的PRS的DLRSTD，由LMF基于UE和/或基站上报的DLRSTD计算目标UE的位置信息。
可选地，也可以由目标UE计算其自身的位置信息，可以称为UE-based。如图3所示，如果为UE-based，此时目标UE可以基于从多个基站接收的PRS的DLRSTD计算出自己的位置信息。
在一些实施例中，LMF或者目标UE在计算目标UE位置信息时，上述公式(1)和公式(2)中的RSTD也可以由每个邻TP与参考TP的接收子帧边界差决定，例如接收子帧边界差即为RSTD，接收子帧边界差可以理解为多个TP在目标UE侧的子帧边界差，也可以理解为多个TP的子帧边界差。例如，接收子帧边界差的计算方式可以参考上述DL RSTD的下行相对时间差的计算方式，例如，目标UE从邻TP接收一个子帧的开始的时间，减去目标UE从参考TP接收一个子帧的相应开始的时间，该子帧在时间上最接近从邻TP接收到的子帧。
在一些实施例中，LMF或者UE在计算目标UE位置信息时，上述公式(1)和公式(2)中的PRS发送时间差可以通过每个邻TP与参考TP的发送子帧边界差表示，例如发送子帧边界差即为PRS发送时间差，发送子帧边界差也可以理解为多个TP的子帧边界差。例如，发送子帧边界差的计算方式可以参考上述DL RSTD的下行相对时间差的计算方式，例如，例如，邻TP向目标UE发送一个子帧的开始的时间，减去参考TP向目标UE发送一个子帧的相应开始的时间，该子帧在时间上最接近邻TP发送的子帧。
在一些实施例中，上述子帧边界差可以替换为帧边界差。可以理解的是，边界差可以替换为边界的时间差。
示例的，当LMF-based时，公式(1)中的RSTD1,2可以由UE101上报给LMF，t1’可以由LMF根据服务基站102的PRS1配置信息确定，t2’可以由LMF根据邻基站103的PRS2配置信息确定，或者，t1’为服务基站102的子帧边界，t2’为邻基站103的子帧边界，即t2’-t1’可以通过邻基站103与服务基站102的子帧边界差得到。同理，当LMF-based时，公式(2)中的RSTD1,3可以由UE101上报给LMF，t1’可以由LMF从服务基站102 的PRS1配置信息中获取，t3’可以由LMF从邻基站104的PRS3配置信息中获取，或者，t1’为服务基站102的子帧边界，t3’为邻基站104的子帧边界，t3’-t1’可以通过邻基站104与服务基站102的子帧边界差得到。
示例的，当UE-based时，公式(1)中的RSTD1,2可以由UE自身测量获取，t1’可以由UE101根据LMF发送的PRS1配置信息确定，t2’可以由UE101根据LMF发送的PRS2配置信息确定，或者，t1’为服务基站102的子帧边界，t2’为邻基站103的子帧边界，t2’-t1’可以通过服务基站102与邻基站103的子帧边界差得到。同理，当UE-based时，公式(2)中的RSTD1,3可以由UE101自身测量获取，t1’可以由UE根据LMF发送的PRS1配置信息确定，t3’可以由UE101根据LMF发送的PRS3配置信息确定，或者，t1’为服务基站102的子帧边界，t3’为邻基站104的子帧边界，t3’-t1’可以通过服务基站102与邻基站104的子帧边界差得到。
除此之外，UL-TDOA定位方法的原理是利用目标UE给多个RP发送的上行信号(例如SRS)的UL相对到达时间(relative time of arrival，RTOA)计算目标UE的位置信息，UL-RTOA是RP接收到的包含上行信号的子帧的开始时间，相对于RTOA参考时间。RP使用从定位服务器获得的辅助数据测量接收到的信号(例如SRS)的UL-RTOA。也就是说，LMF基于多个RP接收到UE发送的SRS的时间差，计算UE的位置信息。关于UL-TDOA定位方法的具体描述这里不再赘述。
由于目前定位方法主要是基于Uu口的参考信号进行定位，当基于Uu口的定位场景中引入侧行链路时，即定位场景中引入至少一个可以发送PC5接口的参考信号的网元或终端或实体(例如路侧单元(rode side unit，RSU))，此时，定位场景中需要基于Uu口的参考信号和基于PC5接口的侧行参考信号对目标UE进行定位，或者，定位场景中仅需要基于PC5接口的侧行参考信号对目标UE进行定位。但是，由于PC5接口的侧行参考信号的发送和接收与Uu口的参考信号的发送和接收存在差异，会导致LMF或目标UE无法准确计算得到目标UE的位置信息。为便于理解，这里举例说明，在图3所示的DL-TDOA定位场景中将邻基站104替换为RSU，该RSU可以发送PC5接口的侧行参考信号(下面以PC5接口的侧行参考信号为SL-PRS举例)，此时，图3所示的DL-TDOA定位场景中需要基于Uu口的参考信号和基于PC5接口的侧行参考信号对UE101进行定位，由于LMF或UE101对邻基站104发送PRS3的时间(即t3’)的确定方式与对RSU发送SL-PRS的发送时间的确定方式存在差异，因此，会导致LMF或UE101无法准确计算得到UE101的位置信息。
有鉴于此，本申请提出一种定位方法，能够有效解决上述技术问题。由上文可知，目标UE的位置信息可以由目标UE本身计算，也可以由LMF计算，下面结合附图对目标UE和LMF定位目标UE的过程进行详细描述。
图4是本申请实施例提供的一种定位方法的示意性流程图。该方法中由LMF计算目标UE的位置信息，该方法可以包括如下步骤。
S401，第二网络设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信。
本申请实施例中的第二网络设备是具有定位管理功能的设备，示例性地，第二网络设备可以是核心网的一部分，或者可以集成到网络设备中。例如，第二网络设备可以是图1和图2所示的LMF，或者，是待定位终端设备的服务网络设备中的定位管理组件(location management component，LMC)。第二网络设备也可以称为定位管理设备或定位中心，本申请并不限定定位管理设备的名称，在未来演进技术中，定位管理设备也可能被赋予其他名称。本申请所有实施例中以第二网络设备为定位管理设备作为示例进行说明。
可以理解，第一终端设备为目标UE。示例的，在图2或图3所示的定位场景中，第一终端设备可以看作是UE101，第二终端设备可以看作是RSU，定位管理设备可以看作是LMF105。
应理解，在一个场景中，可以包括一个或多个辅助定位第一终端设备的位置的第二终端设备，本申请对此不做限定。其中，第二终端设备用于辅助定位第一终端设备的位置，可以理解为第一终端设备通过接收来自第二终端设备的侧行参考信号，和/或，第一终端设备通过向发第二终端设备发送侧行参考信号辅助定位管理设备定位第一终端设备的位置。
可选地，当第二终端设备的同步源为第二终端设备的服务网络设备，第二终端设备的同步信息包括第二终端设备与第二终端设备的服务网络设备的子帧边界的时间差。
示例的，第二终端设备与第二终端设备的服务网络设备的子帧边界的时间差可以为第二终端设备与第二终端设备的服务网络设备下行子帧边界的时间差，还可以为第二终端设备与第二终端设备的服务网络设备的上行子帧边界的时间差。
示例的，关于子帧边界的时间差的计算方式，还可以参考上述DL RSTD的下行相对时间差的计算方式。示例的，第二终端设备与第二终端设备的服务网络设备的子帧边界的时间差包括第二终端设备的时间提前量(timing advance，TA)信息，例如第二终端设备的同步信息为TA/2。
可选地，当第二终端设备的同步源为第二终端设备的服务网络设备，第二终端设备的同步信息包括第二终端设备与第二终端设备的服务网络设备的子帧边界的时间差。
示例的，第二终端设备的同步信息可以由第二终端设备与第二终端设备的服务网络设备的之间的距离决定，例如第二终端设备与第二终端设备的服务网络设备之间通过定位方法确定第二终端设备与第二终端设备的服务网络设备之间的距离信息，或者第二终端设备的位置信息等，该定位方法可以为多小区往返时间(multiplecell-round trip time，Multi-RTT)、UL-TDOA、UL-TDOA等任意定位方法。第二终端设备的同步信息可以通过第二终端设备与第二终端设备的服务网络设备之间的距离信息，或者第二终端设备的位置信息等得到。
可选地，当第二终端设备的同步源为全球导航卫星系统(global navigation satellite system，GNSS)时，第二终端设备的同步信息包括第二终端设备的直接帧号(direct frame number，DFN)时间偏移(offsetDFN)。
可选地，定位管理设备可能通过以下任一方发获取到第一信息。
方法一：定位管理设备接收来自第二终端设备的第一信息。
基于方法一，在一种可能的具体实现方式中，定位管理设备获取第一信息主要包括以下步骤：
1)定位管理设备向第二终端设备发送第一请求消息，第一请求消息用于请求第二终 端设备的同步信息。对应的，第二终端设备接收来自定位管理设备的第一请求消息。
可选地，本申请所有实施例中第一请求消息用于请求第二终端设备的同步信息也可以理解为，第一请求消息中包括第一请求信息，第一请求信息用于请求第二终端设备的同步信息。
2)响应于接收到的第一请求消息，第二终端设备向定位管理设备发送第一请求响应消息，第一请求响应消息包括第一信息。对应的，定位管理设备接收来自第二终端设备的第一请求响应消息。
方法二：定位管理设备接收来自第二终端设备的服务网络设备的第一信息。可以理解，在第二终端设备处于RRC连接态时，第二终端设备的服务网络设备知道第二终端设备的同步信息，则定位管理设备可以从第二终端设备的服务网络设备获取到第一信息。
应理解，当定位场景中包括多个第二终端设备时，如果多个第二终端设备的服务网络设备不为同一网络设备，则定位管理设备接收来自每个第二终端设备的服务网络设备对应的第一信息，即定位管理设备从多个网络设备分别接收多个第二终端设备的同步信息。
基于方法二，在一种可能的具体实现方式中，第二终端设备的服务网络设备可以基于定位管理设备的请求上报第一信息。示例的，定位管理设备获取第一信息主要包括以下步骤：
1)定位管理设备向第二终端设备的服务网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息。对应的，第二终端设备的服务网络设备接收来自定位管理设备的第二请求消息。
可选地，本申请所有实施例中第二请求消息用于请求第二终端设备的同步信息也可以理解为，第二请求消息中包括第二请求信息，第二请求信息用于请求第二终端设备的同步信息。
2)第二终端设备响应于接收到的第二请求消息，向定位管理设备发送第二请求响应消息，第二请求响应消息包括第一信息。对应的，定位管理设备接收来自第二终端设备的服务网络设备的第二请求响应消息。
基于方法二，在另一种可能的具体实现方式中，第二终端设备的服务网络设备主动向定位管理设备上报第一信息。示例的，定位管理设备获取第一信息主要包括以下步骤：
1)定位管理设备向第二终端设备的服务网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息其中，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号。对应的，第二终端设备的服务网络设备接收来自定位管理设备的第四请求消息。
可选地，本申请所有实施例中第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息也可以理解为，第四请求消息中包括第四请求信息，第四请求信息用于请求配置第二终端设备的侧行参考信号的配置信息。
示例的，侧行参考信号的配置信息可以包括以下至少一项：侧行参考信号的资源配置，例如时域资源、频域资源，又例如时隙中的第一个符号、符号的个数、第一个符号的疏状偏移、资源集合的第一个时隙的时隙偏移量；侧行参考信号的周期等信息；交错排列方式(Staggering pattern)；侧行参考信号的重复次数；侧行参考信号的静音(muting)配置。2)第二终端设备的服务网络设备响应于接收到的第四请求消息，向定位管理设备发送第 四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息和第一信息。对应的，定位管理设备接收来自第二终端设备的服务网络设备的第四请求响应消息。
也就说，该实现方式中，第二终端设备的服务网络设备在接收到第四请求消息后，即使定位管理设备没有请求第二终端设备的同步信息，第二终端设备的服务网络设备基于后续的定位需要也可以直接将第二终端设备的侧行参考信号的配置信息和第二终端设备的同步信息同时发送给定位管理设备。
可选地，第二终端设备的服务网络设备也可以分开向定位管理设备发送第一信息和第四请求响应消息，即第四请求响应消息包括第二终端设备的侧行参考信号的配置信息，第一信息承载于其他消息中。
可选地，定位管理设备也可以通过下文中给出的方法或其他实现方式获取第一信息，即第二终端设备的服务网络设备在接收到第四请求消息后，通过第四请求响应消息上报第二终端设备的侧行参考信号的配置信息，但不上报第二终端设备的同步信息，本申请对此不作具体限定。
可选地，该实现方式中，第四请求响应消息中包括的第二终端设备的侧行参考信号的配置信息可以由第二终端设备的服务网络设备直接确定，也可以由第二终端设备确定。下面结合图5进行描述。
图5是本申请提供的一种定位管理设备获取第二终端设备的侧行参考信号的配置信息的示意性流程图。图5包括确定方式①和确定方式②对应的流程。
应理解，图5所示的方法可以单独实施，或者与本申请中的其他方案结合形成新的实施例，本申请对此不作限定。
①由第二终端设备的服务网络设备直接确定第二终端设备的侧行参考信号的配置信息。示例的，如图5中的所示，该确定方式①主要包括以下步骤：
S501，定位管理设备向第一网络设备发送第四请求消息。其中，第一网络设备为第二终端设备的服务网络设备。对应的，定位管理设备接收来自第一网络设备的第四请求消息。
S502，响应于接收到的第四请求消息，第一网络设备确定其覆盖范围内的一个或多个第二终端设备的侧行参考信号的配置信息。
在一些实施例中，若定位管理设备在第四请求消息中包括了一个或多个第二终端设备的标识，第一网络设备可以只确定定位管理设备请求的一个或多个第二终端设备的侧行参考信号的配置信息。
在一些实施例中，若定位管理设备在第四请求消息中没有指示第二终端设备的标识，则第一网络设备确定其覆盖范围内的每个第二终端设备的侧行参考信号的配置信息。
S503，第一网络设备向定位管理设备发送第四请求响应消息，第四请求响应消息包括第一网络设备的覆盖范围内的一个或多个第二终端设备对应的侧行参考信号的配置信息。
在一些实施例中，若定位管理设备在第四请求消息中包括了一个或多个第二终端设备的标识，则第四请求响应消息包括定位管理设备请求的一个或多个第二终端设备的侧行参考信号的配置信息。
在一些实施例中，若定位管理设备在第四请求消息中没有指示任何一个第二终端设备的标识，则第四请求响应消息包括第一网络设备覆盖范围内的所有第二终端设备的侧行参考信号的配置信息。
S504，第一网络设备向其覆盖范围内的一个或多个第二终端设备发送各自对应的侧行参考信号的配置信息。
在一些实施例中，S503中确定了一个第二终端设备的侧行参考信号的配置信息，则第一网络设备向该第二终端设备发送第二消息，第二消息中包括该第二终端设备的侧行参考信号的配置信息。
在一些实施例中，S503中确定了多个第二终端设备的侧行参考信号的配置信息，则第一网络设备分别向该多个第二终端设备中的一个第二终端设备发送第二消息，第二消息中包括该一个第二终端设备的侧行参考信号的配置信息。
在一些实施例中，S503中确定了多个第二终端设备的侧行参考信号的配置信息，则第一网络设备还可以仅向该多个第二终端设备中的一个第二终端设备发送该多个第二终端设备的侧行参考信号的配置信息。例如，第一网络设备向该一个第二终端设备发送第二消息，第二消息中包括该多个第二终端设备的侧行参考信号的配置信息。例如，该多个第二终端设备可以为定位管理设备在第四请求消息中请求的第二终端设备。
应理解，本申请对S503和S504的顺序不做限定。
②由第二终端设备确定第二终端设备的侧行参考信号的配置信息。示例的，如图5中的所示，该确定方式②主要包括以下步骤：
S501，定位管理设备向第一网络设备发送第四请求消息。其中，第一网络设备为第二终端设备的服务网络设备。对应的，定位管理设备接收来自第一网络设备的第四请求响应消息。
S502'，响应于接收到的第四请求消息，第一网络设备向第二终端设备发送第五请求消息，第五请求消息用于请求第二终端设备的侧行参考信号的配置信息。对应的，第二终端设备接收来自第一网络设备的第五请求消息。
可选地，本申请所有实施例中第五请求消息用于请求第二终端设备的侧行参考信号的配置信息也可以理解为，第五请求消息中包括第五请求信息，第五请求信息用于请求配置第二终端设备的侧行参考信号的配置信息。
在一些实施例中，若定位管理设备在第四请求消息中包括了一个或多个第二终端设备的标识，则第一网络设备可以只向定位管理设备在第四请求消息中请求的一个或多个第二终端设备发送第五请求消息。
在一些实施例中，若定位管理设备在第四请求消息中没有指示第二终端设备的标识，则第一网络设备可以向其覆盖范围内的所有第二终端设备的发送第五请求消息。
S503'，响应于接收到的第五请求消息，第二终端设备确定第二终端设备的侧行参考信号的配置信息。
S504'，第二终端设备发送第五请求响应消息，第五响应请求消息包括第二终端设备的侧行参考信号的配置信息。对应的，第一网络设备接收来自第二终端设备的第五请求响应消息。
S505'，第一网络设备向定位管理设备发送第四请求响应消息。
在一些实施例中，若定位管理设备在第四请求消息中包括了一个或多个第二终端设备的标识，则第四请求响应消息包括定位管理设备在第四请求消息中请求的一个或多个第二终端设备的侧行参考信号的配置信息。
可以理解，针对定位管理设备计算或者UE计算的定位方案，第一终端设备需要基于第二终端设备的侧行参考信号的配置信息接收或发送侧行参考信号。上面对定位管理设备获取第二终端设备的侧行参考信号的配置信息进行了描述，这里结合图5对第一终端设备如何获取第二终端设备的侧行参考信号的配置信息进行说明。
可选地，第一终端设备从定位管理设备获取第二终端设备的侧行参考信号的配置信息。具体的，如图5所示，S510，定位管理设备向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息。对应的，第一终端设备接收来自定位管理设备的第一配置消息。
在一些实施例中，定位管理设备需要向第一终端设备发送多个第二终端设备的侧行参考信号的配置信息，则定位管理设备可以向第一终端设备分别发送多个第二终端设备中每个第二终端设备的标识以及该每个第二终端设备的侧行参考信号的配置信息，即，第二终端设备的标识与第二终端设备的侧行参考信号的配置信息一一对应。
在一些实施例中，定位管理设备需要向第一终端设备发送多个第二终端设备的侧行参考信号的配置信息，则定位管理设备可以向第一终端设备发送多个第二终端设备的标识以及多个第二终端设备的侧行参考信号的配置信息，其中多个第二终端设备的标识与多个第二终端设备的侧行参考信号的配置信息一一对应。这里以第二终端设备为RSU举例说明多个第二终端设备的标识与多个第二终端设备的侧行参考信号的配置信息一一对应。例如，在一个消息中按照RSU#1、RSU#2和RSU#3的顺序承载RSU的侧行参考信号的配置信息，则在该消息中也需要按照RSU#1、RSU#2和RSU#3的顺序承载RSU的标识。如果在一个消息中按照RSU#2、RSU#1和RSU#3的顺序承载RSU的侧行参考信号的配置信息，则在该消息中也需要按照RSU#2、RSU#1和RSU#3的顺序承载RSU的标识。简单说，一一对应是指第一终端设备需要根据对应的方式能够确定出RSU#1、RSU#2和RSU#3的侧行参考信号的配置信息。又例如，定位管理设备配置一个列表，该列表包括多个配置信息，每个配置包括RSU的标识以及该RSU的侧行参考信号的配置信息。或者，也可以通过其他对应方式实现一一对应，这里不再赘述。
示例的，第一配置消息中还可以包括第一信息。
可选地，第一终端设备从第二终端设备获取第二终端设备的侧行参考信号的配置信息。具体的，如图5所示，S520，第二终端设备向第一终端设备发送第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息。对应的，第一终端设备接收来自第二终端设备的第二配置消息。示例的，第二配置消息中还可以包括第一信息。
在一些实施例中，第一终端设备与第二终端设备之间建立了单播连接，第二终端设备基于该单播连接向第一终端设备发送第二终端设备的侧行参考信号的配置信息。或者，第一终端设备与第二终端设备之间未建立单播连接，例如，第二终端设备通过广播或者组播的方式向第一终端设备发送第二终端设备的侧行参考信号的配置信息。其中，第二终端设备还可以向第一终端设备发送其他第二终端设备的侧行参考信号的配置信息。本申请对此不做限定。
可以理解，图5所示的获取第二终端设备的侧行参考信号的配置信息的方法仅是示例性说明，本申请实施例不限于此。
方法三：定位管理设备接收来自第一终端设备的第一信息。
可以理解，第一终端设备可以从第二终端设备获取第二终端设备的同步信息，再发送给定位管理设备。示例的，若第一终端设备与第二终端设备已经建立单播连接，则第二终端设备通过单播的方式向第一终端设备发送第二终端设备的同步信息，其中，第二终端设备的同步信息可以承载于第一终端设备与第二终端设备的侧行链路上的RRC重配消息或其他的RRC专用消息；或者，第一终端设备与第二终端设备之间未建立单播连接，第二终端设备通过广播或者组播的方式向第一终端设备发送第二终端设备的同步信息。
基于方法三，在一种可能的具体实现方式中，第一终端设备可以基于定位管理设备的请求上报第一信息。示例的，定位管理设备获取第一信息的主要包括以下步骤：
1)定位管理设备向第一终端设备发送第三请求消息，第三请求消息用于请求第二终端设备的同步信息。对应的，第一终端设备接收来自定位管理设备的第三请求消息。
可选地，本申请所有实施例中第三请求消息用于请求第二终端设备的同步信息也可以理解为，第三请求消息中包括第三请求信息，第三请求信息用于请求第二终端设备的同步信息。
2)响应于接收到的第三请求消息，第一终端设备向定位管理设备发送第三请求响应消息，第三请求响应消息包括第一信息。对应的，定位管理设备接收来自第一终端设备的第三请求响应消息。
基于方法三，在另一种可能的具体实现方式中，第一终端设备主动向定位管理设备上报第一信息。示例的，定位管理设备获取第一信息的主要包括以下步骤：
当第一终端设备向定位管理设备上报第一参考信号的测量结果时，第一终端设备还会同时上报该测量结果对应的一个或多个第二终端设备的第一信息。也就是说，第一终端设备总是将测量结果和第一信息一起上报给定位管理设备。
应理解，第一参考信号包括第二终端设备发送给第一终端设备的侧行参考信号(即PC5接口的参考信号)或第一终端设备发送给第二终端设备的侧行参考信号，例如第一参考信号包括SL-PRS。可选地，第一参考信号还包括辅助定位第一终端设备的位置的网络设备发送给第一终端设备的参考信号(即Uu接口的参考信号)，例如第一参考信号包括SL-PRS和DL-PRS。可选地，如果定位场景中还涉及第一终端设备发送的Uu接口的参考信号(例如SRS)，则第一参考信号还包括第一终端设备发送的Uu接口的参考信号，例如第一参考信号包括SL-PRS、DL-PRS和SRS。
S402，第二网络设备根据第二终端设备的同步信息确定第一终端设备的位置信息。
下面具体说明第二网络设备(定位管理设备)获取第一信息后能够准确计算第一终端设备的位置信息的具体原因。这里结合图2举例说明，当在图2所示的DL-TDOA定位场景中将邻基站104替换为RSU后，例如，在定位过程中，该RSU在T3时刻向UE101发送SL-PRS，则公式(1)保持不变，公式(2)中的t3’需要替换为T3，得到如下公式(3)：
ΔS3＝(t3-T3)*c-(t1-t1’)*c＝{(t3-t1)-(T3-t1’)}*c＝{RSTD1,3–(T3-t1’)}*c   (3)
可以理解，由于服务基站102、邻基站103和邻基站104保持同步，或者说服务基站102、邻基站103和邻基站104之间的发送子帧边界差是已知的，当LMF-based时，LMF105可以确定出t3’-t1’，但是引入RSU后，LMF105不知道RSU的同步信息，因此无法确定T3-t1’，即无法准确计算UE101的位置信息。而本申请通过获取RSU的同步信息，能够使LMF105准确计算出UE101的位置信息。
需要说明的是，当定位场景中引入至少一个RSU时，针对包含参考TP与至少一个RSU的定位场景，RSTD由PC5接口侧行参考信号与Uu接口的参考信号决定。以邻基站104替换为RSU为例，上述公式(3)中RSTD1,3是UE基于RSU发送的侧行参考信号与服务基站102发送的定位参考信号得到的。由于此时UE测量的信号不仅包括下行参考信号，还包括侧行参考信号，因此，此时公式(3)中的RSTD1,3与DL RSTD不完全相同，但是可以参考上述DL RSTD的计算方式。例如，公式(3)中的RSTD1,3为相对时间差，该相对时间差可以定义为时间C减时间D，其中时间C为目标UE(即UE101)从RSU接收一个子帧的开始的时间，时间D为目标UE从参考TP(即服务基站102)接收一个子帧的相应开始的时间，该子帧在时间上最接近从RSU接收到的子帧。
需要说明的是，当定位场景中引入至少一个RSU时，针对仅包含RSU的定位场景，即参考基站也由RSU替换时，RSTD仅由PC5接口侧行参考信号决定。以服务基站102、邻基站103以及邻基站104均替换为RSU为例，上述公式(2)的RSTD1,2和公式(3)的RSTD1,3是UE基于RSU发送的侧行参考信号得到的。由于此时UE测量的信号仅包括侧行参考信号，因此，此时公式(2)的RSTD1,2和公式(3)中的RSTD1,3与DL RSTD不完全相同，但是可以参考上述DL RSTD的计算方式。例如，公式(2)中的RSTD1,2为相对时间差，该相对时间差可以定义为时间E减时间F，其中时间E为目标UE从RSU2接收一个子帧的开始的时间，时间F为目标UE从参考RSU1接收一个子帧的相应开始的时间，该子帧在时间上最接近从RSU2接收到的子帧；公式(3)中的RSTD1,3为相对时间差，该相对时间差可以定义为时间G减时间F，其中时间E为目标UE从RSU3接收一个子帧的开始的时间，时间F为目标UE从参考RSU1接收一个子帧的相应开始的时间，该子帧在时间上最接近从RSU3接收到的子帧。
另外，如S401中所述，RSU的同步源可为RSU的服务网络设备或者GNSS。本申请中，当定位场景中引入至少一个RSU时，不限定RSU的同步源必须相同。也就是说，当定位场景中引入至少一个RSU时，RSU的同步源可以仅为RSU的服务网络设备，或者RSU的同步源仅为GNSS，除此之外，一些RSU的同步源为该RSU的服务网络设备，另一些RSU的同步源为GNSS，本申请对此不做限定。
类似的，若定位场景中引入至少一个RSU，当采用UL-TDOA定位方法时，目标UE的位置信息可以基于Uu接口的参考信号以及PC5接口的参考信号得到，或者目标UE的位置信息可以仅基于PC5接口的侧行参考信号得到，这里不再赘述。
可以理解，在本申请给出的所有实施例中，第一终端设备还可以向定位管理设备上报可用于定位自己位置的第二终端设备的标识，以避免不需要发送侧行参考信号的第二终端设备也向第一终端设备发送侧行参考信号而导致的资源浪费。那么，可选地，该方法还可以包括以下步骤：
1)第一终端设备向定位管理设备发送第一消息，第一消息包括第二终端设备的标识。对应的，定位管理设备接收来自第一终端设备的第一消息，
2)定位管理设备向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送侧行参考信号，第三终端设备为所有终端设备中除第二终端设备的标识对应的终端设备之外的其他终端设备。
示例的，2)中的所有终端设备为定位管理设备请求辅助定位第一终端设备的所有网 络设备覆盖的所有终端设备，或者，所有终端设备为定位管理设备请求辅助定位第一终端设备的所有网络设备覆盖的终端设备，这些终端设备距离第一终端设备的距离较近，或者，所有终端设备为S510中定位管理设备向第一终端设备发送的第一配置消息中包括的第二终端设备的侧行参考信号的配置信息对应的所有第二终端设备，或者，所有终端设备为S520中向第一终端设备发送的第二配置消息中的所有第二终端设备。
可以理解，本申请中的实施例可以适用于所有需要获取第一信息才能实现对目标UE准确定位的定位方法中，本申请对此不做具体限定。
上文结合图4对定位管理设备获取第一信息的方法进行了详细描述。下面基于图4所示的方法给出图6和图7两种可能的定位管理设备计算第一终端设备位置信息的具体实现流程。
图6是本申请提供的一种定位管理设备计算第一终端设备位置信息的示意性流程图。该方法可以包括如下步骤。
S601，定位发起方发起对第一终端设备的定位，定位管理设备与第一终端设备交互能力，例如执行能力传输流程。
可选地，第一终端设备向定位管理设备发送其可接收到侧行信号的第二终端设备的标识。例如，第二终端设备为RSU，则第二终端设备的标识为RSU的标识。定位管理设备可以参考第一终端设备发送的第二终端设备的标识，确定使用哪些终端设备辅助定位第一终端设备的位置。该标识可以为层二标识，或者，该标识为第一终端设备与定位管理设备之间协商的标识，本申请对此不做限定。
S602，定位管理设备向第一网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息。其中，第一网络设备为第二终端设备的服务网络设备。对应的，第一网络设备接收来自定位管理设备的第四请求消息。
S603，第一网络设备向定位管理设备向发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息。对应的，定位管理设备接收来自第一网络设备的第四请求响应消息。
该方法中，若S602之前或者S602之时第二终端设备处于RRC连接态，第一网络设备知道第二终端设备的同步信息，则第一网络设备可以在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中还包括第一信息。若S602之前或者S602之时第二终端设备处于非RRC连接态，第一网络设备不知道第二终端设备的同步信息，则此时第一网络设备无法在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中不包括第一信息。
S604，第一终端设备获取第二终端设备的侧行参考信号的配置信息。
关于S602至S604中定位管理设备和第一终端设备获取第二终端设备的侧行参考信号的配置信息的配置方式可以参见上文中对图5的描述，这里不再赘述。
可选地，第一终端设备可以向定位管理设备上报可用于定位自己位置的第二终端设备的标识，以避免所有终端设备都向第一终端设备发送侧行参考信号而导致的资源浪费。这样，定位管理设备就可以指示所有终端设备中除第二终端设备外的终端设备无需向第一终端设备发送侧行参考信号。其中，所有终端设备为定位管理设备请求辅助定位第一终端设备的所有网络设备覆盖的所有终端设备，或者，所有终端设备为定位管理设备请求辅助定 位第一终端设备的所有网络设备覆盖的终端设备，这些终端设备距离第一终端设备的距离较近，或者，所有终端设备为S510中定位管理设备向第一终端设备发送的第一配置消息中包括的第二终端设备的侧行参考信号的配置信息对应的所有第二终端设备，或者，所有终端设备为S520中向第一终端设备发送的第二配置消息中的所有第二终端设备。
S605，定位管理设备向第一终端设备发送第一定位请求消息，该第一定位请求消息用于请求第一终端设备测量第一参考信号，或者用于请求第一终端设备的定位测量。对应的，第一终端设备接收来自定位管理设备的第一定位请求消息。应理解，第一参考信号包括第二终端设备发送给第一终端设备的侧行参考信号(即PC5接口的参考信号)或第一终端设备发送给第二终端设备的侧行参考信号，例如第一参考信号包括SL-PRS。可选地，第一参考信号还包括辅助定位第一终端设备的位置的网络设备发送给第一终端设备的参考信号(即Uu接口的参考信号)，例如第一参考信号包括SL-PRS和DL-PRS。可选地，如果定位场景中还涉及第一终端设备发送的Uu接口的参考信号(例如SRS)，则第一参考信号还包括第一终端设备发送的Uu接口的参考信号，例如第一参考信号包括SL-PRS、DL-PRS和SRS。
在一些实施例中，第一终端设备与第二终端设备之间建立了单播连接，第二终端设备基于该单播连接向第一终端设备发送第一参考信号。例如，第二终端设备单独向第一终端设备发送第一参考信号，此时，当第二终端设备需要向多个第一终端设备发送第一参考信号时，第二终端设备分别向每个第一终端设备发送第一参考信号。又例如，第二终端设备同时向至少一个第一终端设备发送第一参考信号，此时，当第二终端设备需要向多个第一终端设备发送第一参考信号时，类似于广播的发送方式，第二终端设备只需要发送一次第一参考信号。
在一些实施例中，第一终端设备与第二终端设备之间未建立单播连接，第二终端设备通过广播或者组播的方式向第一终端设备发送第一参考信号。本申请对此不做限定。
需要说明的是，以上介绍的第一参考信号的发送方式不仅适用于第二终端设备向第一终端设备发送第一参考信号，还适用于第一终端设备向第二终端设备发送第一参考信号。本申请对此不做限定。
示例的，该第一定位请求消息为LPP request location information。
S606，第一终端设备对第一参考信号进行测量，得到第一测量结果。
示例的，第一终端设备得到的第一测量结果包括RSTD，例如，包括第一终端设备基于第一终端设备与一个或多个第二终端设备传输侧行参考信号得到的RSTD。第一测量结果还包括第二终端设备的标识等信息。
S607，第一终端设备向定位管理设备发送第一定位请求响应消息，该第一定位请求消息包括第一测量结果。
可选地，第一终端设备还可以向定位管理设备上报第一参考信号对应的时间信息。例如，第一终端设备传输(接收或发送)SL-PRS的帧号和子帧号。
可选地，如果S603中第四请求响应消息中包括第一信息，则执行S612。例如，如果S602之前或者S602之时第二终端设备处于RRC连接态，定位管理设备从第一网络设备获取第二终端设备的第一信息，则定位管理设备可以执行S612。
可选地，如果S603中第四请求响应消息中不包括第一信息，则定位管理设备可以向 第一网络设备请求第一信息，则执行S608和S609。或者，定位管理设备可以向第二终端设备请求第一信息，执行S610和S611。例如，如果S602之前或者S602之时第二终端设备未处于RRC连接态，例如第二终端设备为RRC空闲态或RRC去激活态，定位管理设备未从第一网络设备获取第二终端设备的第一信息，则定位管理设备可以基于第一终端设备上报的第一测量结果，向第一网络设备或者第二终端设备请求第一测量结果中包括的第二终端设备的第一信息。
S608，定位管理设备向第一网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息。对应的，第一网络设备接收来自定位管理设备的第二请求消息。
示例的，第二请求消息中包括一个或多个第二终端设备的标识。
可选地，定位管理设备可以基于第一测量结果确定其需要哪些第二终端设备的同步信息，之后，向这些第二终端设备的服务网络设备请求这些第二终端设备的同步信息。可以理解，这些第二终端设备的服务网络设备可能为同一网络设备，也可以为不同的网络设备。这里以第二终端设备为RSU举例说明，定位管理设备可以基于第一测量结果确定需要获取RSU#1、RSU#2和RSU#3的同步信息，RSU#1、RSU#2的服务网络设备为基站#1(即第一网络设备的一例)，RSU#3的服务基站为基站#2(即第一网络设备的另一例)，则定位管理设备向基站#1发送请求消息#1(即第二请求消息的一例)，请求消息#1用于请求RSU#1和RSU#2的同步信息，请求消息#1包括RSU#1和RSU#2的标识；定位管理设备向基站#2发送请求消息#2(即第二请求消息的另一例)，请求消息#2用于请求RSU#3的同步信息，请求消息#2包括RSU3的标识。
定位管理设备定位管理设备定位管理设备S609，第一网络设备响应于接收到的第二请求消息，向定位管理设备发送第二请求响应消息，第二请求响应消息包括第一信息。对应的，定位管理设备接收来自第一网络设备的第二请求响应消息。之后，执行S612。
示例的，第二请求响应消息包括定位管理设备在第二请求消息中请求的一个或多个第二终端设备的第一信息。
为便于理解，以S608中的请求消息#1和请求消息#2为例继续进行描述。基站#1响应于接收到的请求消息#1，向定位管理设备发送请求响应消息#1，请求响应消息#1包括RSU#1和RSU#2的同步信息。基站#2响应于接收到的请求消息#2，向定位管理设备发送请求响应消息#2，请求响应消息#2包括RSU#3的同步信息。
S610，定位管理设备向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息。对应的，第二终端设备接收来自定位管理设备的第一请求消息。
S611，响应于接收到的第一请求消息，第二终端设备向定位管理设备发送第一请求响应消息，第一请求响应消息包括第一信息。对应的，定位管理设备接收来自第二终端设备的第一请求响应消息。之后，执行S612。
S612，定位管理设备根据第一信息确定第一终端设备的位置信息。
具体的，定位管理设备根据第一信息以及第一测量结果确定第一终端设备的位置信息。关于具体确定第一终端设备的位置的过程参见上文中的描述，这里不再赘述。
图7是本申请提供的另一种定位管理设备计算第一终端设备的位置信息的示意性流程图。该方法可以包括如下步骤。
S701和S702具体可以参见S601和S602中的描述，这里不再赘述。
S703，第一网络设备向定位管理设备向发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息。对应的，定位管理设备接收来自第一网络设备的第四请求响应消息。
可选地，该步骤中，若S702之前或者S702之时第二终端设备处于RRC连接态，第一网络设备知道第二终端设备的同步信息，则第一网络设备可以在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中还包括第一信息。若S702之前或者S702之时第二终端设备处于非RRC连接态，第一网络设备不知道第二终端设备的同步信息，则此时第一网络设备无法在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中不包括第一信息。
可选地，该步骤中，第一网络设备无论知不知道第二终端设备的同步信息，都不向定位管理设备发送第二终端设备的同步信息。
S704，第一终端设备获取第二终端设备的侧行参考信号的配置信息。
关于S702至S704中定位管理设备和第一终端设备获取第二终端设备的侧行参考信号的配置信息的配置方式可以参见上文中对图5的描述，这里不再赘述。S705，第二终端设备向第一终端设备发送第一信息。对应的，第一终端设备接收来自第二终端设备的第一信息。
其中，第二终端设备向第一终端设备发送第一信息的发送方式可以参见图4中方法三的描述。
S706，定位管理设备向第一终端设备发送第一定位请求消息，该第一定位请求消息用于请求第一终端设备测量第一参考信号，或者用于请求第一终端设备的定位测量。对应的，第一终端设备接收来自定位管理设备的第一定位请求消息。
可选地，如果S703中第四请求响应消息中不包括第一信息，则第一定位请求消息还包括第一定位请求信息，例如第一定位请求信息包括一个或多个第二终端设备的标识，此时第一定位请求消息可以用于请求第二终端设备的同步信息。
S707，第一终端设备对第一参考信号进行测量，得到第一测量结果。
关于第一参考信号的描述参见S605中的描述，关于第一测量结果的描述参见S606中的描述，这里不再赘述。
S708，第一终端设备向定位管理设备发送第一定位请求响应消息，该第一定位请求响应消息包括第一测量结果。对应的，定位管理设备接收来自第一终端设备的第一定位请求响应消息。
可选地，如果S703中第四请求响应消息中不包括第一信息，则第一定位请求消息还包括一个或多个第二终端设备的标识，此时第一定位请求消息可以用于请求该一个或多个第二终端设备的标识对应的第二终端设备的同步信息，则该步骤中第一定位请求响应消息中还包括该一个或多个第二终端设备的第一信息。
可选地，该步骤中不区分第二终端设备的RRC状态，第一终端设备可以主动上报第一测量结果对应的一个或多个第二终端设备的第一信息。
S709，定位管理设备根据第一信息确定第一终端设备的位置信息。
具体的，定位管理设备根据第一信息以及第一测量结果确定第一终端设备的位置信息。关于具体确定第一终端设备的位置的过程参见上文中的描述，这里不再赘述。
以上对定位管理设备计算目标UE的位置的过程进行了详细描述，下面继续结合图8对目标UE本身计算目标UE的位置的过程进行描述。
图8是本申请实施例提供的另一种定位方法的示意性流程图。该方法中由目标UE计算目标UE的位置信息，该方法可以包括如下步骤。
S801，第一终端设备获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信。
示例的，在图2所示的定位场景中，第一终端设备可以看作是UE101，第二终端设备可以看作是RSU。
应理解，在一个场景中，可以包括一个或多个辅助定位第一终端设备的位置的第二终端设备，本申请对此不做限定。关于第二终端设备的同步信息参见S401中的描述，这里不再赘述。
可选地，第一终端设备可能通过以下任一方法获取到第一信息。
方法四：第一终端设备接收来自定位管理设备的第一信息。
基于方法四，在一种可能的具体实现方式中，第一终端设备获取第一信息主要包括以下步骤：
定位管理设备向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息和第一信息，其中，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号。对应的，第一终端设备接收来自定位管理设备的第一配置消息。
可选地，定位管理设备也可以将第一信息与第一配置消息分开发送，即第一配置消息包括第二终端设备的侧行参考信号的配置信息，第一信息承载于其他消息中。
可选地，定位管理设备也可以将第一信息与第二终端设备的侧行参考信号的配置信息分开发送，即定位管理设备分别发送包括第二终端设备的侧行参考信号的配置信息的第一配置消息，和包括第一信息的第一配置消息。
关于该方法中定位管理设备如何获取第一信息和第二终端设备的侧行参考信号的配置信息可以参见S401中方法一和方法二的描述，这里不再赘述。
方法五：第一终端设备接收来自第二终端设备的第一信息。
可以理解，第一终端设备和第二终端设备基于PC5接口中的侧行链路进行通信。第一终端设备可以通过PC5接口从第二终端设备获取第一信息。
基于方法五，在一种可能的具体实现方式中，第一终端设备获取第一信息的主要包括以下步骤：
第二终端设备向第一终端设备发送第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息和第一信息，其中，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号。对应的，第一终端设备接收来自第二终端设备的第二配置消息。
可选地，第二终端设备也可以将第一信息与第二配置消息分开发送，即第二配置消息包括第二终端设备的侧行参考信号的配置信息，第一信息承载于其他消息中。
可选地，第二终端设备也可以将第一信息与第二终端设备的侧行参考信号的配置信息分开发送，即第二终端设备分别发送包括第二终端设备的侧行参考信号的配置信息的第二配置消息，和包括第一信息的第二配置消息。
S802，第一终端设备根据第一信息确定第一终端设备的位置信息。
关于第一终端设备获取第一信息后能够准确计算第一终端设备的位置的具体原因这里不再赘述，参见S402中的描述。
可以理解，第一终端设备还可以向定位管理设备上报可用于定位自己位置的第二终端设备的标识，以避免不需要发送侧行参考信号的第二终端设备也向第一终端设备发送侧行参考信号而导致的资源浪费。那么，可选地，该方法还可以包括以下步骤：
1)第一终端设备向定位管理设备发送第一消息，第一消息包括第二终端设备的标识。对应的，定位管理设备接收来自第一终端设备的第一消息，
2)定位管理设备向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送参考信号，第三终端设备为所有终端设备中除第二终端设备的标识对应的终端设备之外的其他终端设备。
示例的，2)中的所有终端设备为定位管理设备请求辅助定位第一终端设备的所有网络设备覆盖的所有终端设备，或者，所有终端设备为定位管理设备请求辅助定位第一终端设备的所有网络设备覆盖的终端设备，这些终端设备距离第一终端设备的距离较近，或者，所有终端设备为S510中定位管理设备向第一终端设备发送的第一配置消息中包括的第二终端设备的侧行参考信号的配置信息对应的所有第二终端设备，或者，所有终端设备为S520中向第一终端设备发送的第二配置消息中的所有第二终端设备。
上文结合图8对第一终端设备获取第一信息的方法进行了详细描述。下面基于图8所示的方法给出图9和图10两种可能的第一终端设备计算第一终端设备位置的具体实现流程。
图9是本申请提供的一种第一终端设备计算第一终端设备的位置信息的示意性流程图。该方法可以包括如下步骤。
S901，定位发起方发起对第一终端设备的定位，定位管理设备与第一终端设备交互能力，例如执行能力传输流程。
S901具体可参见S601的描述，这里不再赘述。
S902，定位管理设备向第一网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息。其中，第一网络设备为第二终端设备的服务网络设备。对应的，第一网络设备接收来自定位管理设备的第四请求消息。
S903，第一网络设备向定位管理设备向发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息。对应的，定位管理设备接收来自第一网络设备的第四请求响应消息。
该方法中，若S902之前或者S902之时第二终端设备处于RRC连接态，第一网络设备知道第二终端设备的同步信息，则第一网络设备可以在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中还包括第一信息。若S902之前或者S902之时第二终端设备处于非RRC连接态，第一网络设备不知道第二终端设备的同步信息，则此时第一网络设备无法在第四请求响应消息中向定位管理设备发送第二终端 设备的同步信息，即第四请求响应消息中不包括第一信息。
S904，第一终端设备获取第二终端设备的侧行参考信号的配置信息。
关于S902至S904中定位管理设备和第一终端设备获取第二终端设备的侧行参考信号的配置信息的配置方式可以参见上文中对图5的描述，这里不再赘述。
示例的，如果S903中第四请求响应消息中包括第一信息，则执行S909。例如，如果S902之前或者S902之时第二终端设备处于RRC连接态，定位管理设备从第一网络设备获取第二终端设备的第一信息，则定位管理设备可以执行向第一终端设备发送第一信息。
示例的，如果S903中第四请求响应消息中不包括第一信息，则定位管理设备可以向第一网络设备请求第一信息，则执行S905和S906。或者，定位管理设备可以向第二终端设备请求第一信息，执行S907和S908。例如，如果S902之前或者S902之时第二终端设备未处于RRC连接态，例如第二终端设备为RRC空闲态或RRC去激活态，定位管理设备未从第一网络设备获取第二终端设备的第一信息，则定位管理设备可以向第一网络设备或者第二终端设备请求第二终端设备的第一信息。
S905，定位管理设备向第一网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息。对应的，第一网络设备接收来自定位管理设备的第二请求消息。
关于第二请求消息的描述可以参考S608，这里不再赘述。
S906，第一网络设备响应于接收到的第二请求消息，向定位管理设备发送第二请求响应消息，第二请求响应消息包括第一信息。对应的，定位管理设备接收来自第一网络设备的第二请求响应消息。之后，执行S909。
关于第二请求响应消息的描述可以参考S609，这里不再赘述。
S907，定位管理设备向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息。对应的，第二终端设备接收来自定位管理设备的第一请求消息。
S908，响应于接收到的第一请求消息，第二终端设备向定位管理设备发送第一请求响应消息，第一请求响应消息包括第一信息。对应的，定位管理设备接收来自第二终端设备的第一请求响应消息。之后，执行S909。
S909，定位管理设备向第一终端设备发送第一信息。对应的，第一终端设备接收来自定位管理设备的第一信息。
可选地，如果S904中第一终端设备需要从定位管理设备获取第二终端设备的侧行参考信号的配置信息，那么，S909中定位管理设备可以将第二终端设备的侧行参考信号的配置信息和第一信息同时发送给第一终端设备。
S910，第一终端设备对第一参考信号进行测量，得到第一测量结果。
关于第一参考信号的描述参见S605中的描述，关于第一测量结果的描述参见S606中的描述，这里不再赘述。
S911，第一终端设备根据第一信息确定第一终端设备的位置信息。
具体的，第一终端设备根据第一信息以及第一测量结果确定第一终端设备的位置信息。关于确定第一终端设备的位置的具体过程参见上文中的描述，这里不再赘述。
图10是本申请提供的另一种第一终端设备计算第一终端设备的位置信息的示意性流程图。该方法可以包括如下步骤。
S1001，定位发起方发起对第一终端设备的定位，定位管理设备与第一终端设备交互 能力，例如执行能力传输流程。
S1001具体可参见S601的描述，这里不再赘述。
S1002，定位管理设备向第一网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息。其中，第一网络设备为第二终端设备的服务网络设备。对应的，第一网络设备接收来自定位管理设备的第四请求消息。
S1003，第一网络设备向定位管理设备向发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息。对应的，定位管理设备接收来自第一网络设备的第四请求响应消息。
可选的，若S1002之前或者S1002之时第二终端设备处于RRC连接态，第一网络设备知道第二终端设备的同步信息，则第一网络设备可以在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息还中包括第一信息。若S1002之前或者S1002之时第二终端设备处于非RRC连接态，第一网络设备不知道第二终端设备的同步信息，则此时第一网络设备无法在第四请求响应消息中向定位管理设备发送第二终端设备的同步信息，即第四请求响应消息中不包括第一信息。
可选地，该步骤中，第一网络设备无论知不知道第二终端设备的同步信息，都不向定位管理设备发送第二终端设备的同步信息。
S1004，第一终端设备获取第二终端设备的侧行参考信号的配置信息。
关于S1002至S1004中定位管理设备和第一终端设备获取第二终端设备的侧行参考信号的配置信息的配置方式可以参见上文中对图5的描述，这里不再赘述。
S1005，第二终端设备向第一终端设备发送第一信息。对应的，第一终端设备接收来自第二终端设备的第一信息。
其中，第二终端设备向第一终端设备发送第一信息的发送方式可以参见图4中方法三的描述。
在一些实施例中，S1004和S1005可以同时发生，即第二终端设备同时向第一终端设备发送第二终端设备的侧行参考信号的配置信息以及第一信息。
在一些实施例中，第一终端设备从定位管理设备获取第二终端设备的侧行参考信号的配置信息，第一终端设备从第二终端设备获取第一信息。
S1006，第一终端设备对第一参考信号进行测量，得到第一测量结果。
关于第一参考信号的描述参见S605中的描述，关于第一测量结果的描述参见S606中的描述，这里不再赘述。
S1007，第一终端设备根据第一信息确定第一终端设备的位置信息。
具体的，第一终端设备根据第一信息以及第一测量结果确定第一终端设备的位置信息。关于对第一参考信号的描述以及确定第一终端设备的位置的具体过程参见上文中的描述，这里不再赘述。
可以理解，本申请中获取第一信息是必要的步骤，在申请的所有实施例中，其他步骤可以是可选步骤。可以理解，上述图4至图10中各个步骤仅是示例性说明，对此不作严格限定。此外，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
还可以理解，在本申请的各实施例中涉及到一些消息名称，其命名不对本申请实施例 的保护范围造成限定。
还可以理解，本申请的各实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，也可以在某些场景下，与其他特征进行结合，不作限定。
还可以理解，在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
还可以理解，在上述一些实施例中，主要以现有的网络架构中的设备为例进行了示例性说明，应理解，对于设备的具体形式本申请实施例不作限定。例如，在未来可以实现同样功能的设备都适用于本申请实施例。
本申请实施例中，对于名词的数目，除非特别说明，表示“单数名词或复数名词”，即"一个或多个”。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。例如，A/B，表示：A或B。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，表示：a,b,c,a和b,a和c,b和c,或a和b和c，其中a,b,c可以是单个，也可以是多个。
本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如，第一请求消息和第二请求消息，可以是同一个消息，也可以是不同的消息，且，这种名称也并不是表示这两个消息的内容、大小、应用场景、发送端/接收端、优先级或者重要程度等的不同。另外，本申请所介绍的各个实施例中对于步骤的编号，只是为了区分不同的步骤，并不用于限定步骤之间的先后顺序。例如，S503可以发生在S504之前，或者可能发生在S504之后，或者也可能与S504同时发生。
还可以理解，上述各个方法实施例中，由设备实现的方法和操作，也可以由可由设备的组成部件(例如芯片或者电路)来实现，不作限定。
相应于上述各方法实施例给出的方法，本申请实施例还提供了相应的装置，所述装置包括用于执行上述各个方法实施例相应的模块。该模块可以是软件，也可以是硬件，或者是软件和硬件结合。可以理解的是，上述各方法实施例所描述的技术特征同样适用于以下装置实施例。
可以理解的是，上述各个方法实施例中，由设备(如上述如第一终端设备、第二终端设备、LMF、网络设备等)实现的方法和操作，也可以由设备的部件(例如芯片或者电路)实现。
以上，结合图1至图10详细说明了本申请实施例提供的方法。上述方法主要从网元的之间交互的角度进行了介绍。可以理解的是，终端设备和网络设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。
本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
以下，结合图11和图12详细说明本申请实施例提供的通信装置。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，部分内容不再赘述。本申请实施例可以根据上述方法示例对终端设备或网络设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。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。需要说明的是，本申请实施例中对模块的划分是示意性的，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。下面以采用对应各个功能划分各个功能模块为例进行说明。
图11是本申请提供的通信装置1000的示意性框图。如图11，该装置100包括收发单元1100和处理单元1200。收发单元1100可以用于实现相应的通信功能。收发单元1100还可以称为通信接口或通信单元。处理单元1200可以用于进行数据或信息的处理。
可选地，该装置1000还包括存储单元，该存储单元可以用于存储指令和/或数据，处理单元1200可以读取存储单元中的指令和/或数据，以使得装置实现前述各个方法实施例中终端设备的动作。
一种可能的设计，该装置1000可以用于执行上文各个方法实施例中第一终端设备所执行的动作，这时，该装置1000可以为第一终端设备或者第一终端设备的组成部件，收发单元1100用于执行上文方法实施例中第一终端设备侧的收发相关的操作，处理单元1200用于执行上文方法实施例中第一终端设备侧的处理相关的操作。
一种可能的实现方式，收发单元1100，获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；处理单元1200，用于第一终端设备根据第一信息确定第一终端设备的位置信息。
可选地，收发单元1100，具体用于接收来自定位管理功能网元第二网络设备的第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第一信息。
可选地，收发单元1100，具体用于接收来自定位管理功能网元第二网络设备的第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
可选地，收发单元1100，还用于向定位管理功能网元第二网络设备发送第一消息，第一消息包括第二终端设备的标识。
示例的，第二终端设备为一组终端设备，该一组终端设备包括一个或多个终端设备。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第一终端设备执行的步骤或者流程，该装置1000可以包括用于执行图4至图10所示实施例中的第一终端设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
另一种可能的实现方式，收发单元1100，获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；收发单元1100，还用于向定位管理功能网元第二网络设备发送第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
可选地，收发单元1100，还用于向定位管理功能网元第二网络设备发送第一消息，第一消息包括第二终端设备的标识。
示例的，第二终端设备为一组终端设备，该一组终端设备包括一个或多个终端设备。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第一终端设备执行的步骤或者流程，该装置1000可以包括用于执行图4至图10所示实施例中的第一终端设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
另一种可能的设计，该装置1000可以用于执行上文各个方法实施例中第二网络设备所执行的动作，这时，该装置1000可以为第二网络设备或者第二网络设备的组成部件，收发单元1100用于执行上文方法实施例中第二网络设备侧的收发相关的操作，处理单元1200用于执行上文方法实施例中第二网络设备侧的处理相关的操作。
一种可能的实现方式，收发单元1100，用于获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；处理单元1200，用于根据第二终端设备的同步信息确定第一终端设备的位置信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的服务网络设备的第一信息。
可选地，收发单元1100，具体用于接收来自第一终端设备的第一信息。
可选地，收发单元1100，还用于向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于接收来自第二终端设备的第一请求响应消息，第一请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第二终端设备的服务网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于接收来自第二 终端设备的服务网络设备的第二请求响应消息，第二请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第一终端设备发送第三请求消息，第三请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于接收来自第一终端设备的第三请求响应消息，第三请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第二终端设备的服务网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；收发单元1100，还用于接收来自第二终端设备的服务网络设备的第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
可选地，收发单元1100，还用于接收来自第一终端设备的第一消息，第一消息包括第二终端设备的标识；收发单元1100，还用于向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送参考信号，第三终端设备为第二网络设备请求辅助定位目标终端的所有网络设备覆盖的所有终端设备中除第二终端设备之外的终端设备。
示例的，第二终端设备为一组终端设备，该一组终端设备包括一个或多个终端设备。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第二网络设备执行的步骤或者流程，该装置1000可以包括用于执行图4至10所示实施例中的第二网络设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
另一种可能的实现方式，收发单元1100，用于获取第一信息，第一信息包括第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；收发单元1100，还用于向第一终端设备发送第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的第一信息。
可选地，收发单元1100，具体用于接收来自第二终端设备的服务网络设备的第一信息。
可选地，收发单元1100，还用于向第二终端设备发送第一请求消息，第一请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于接收来自第二终端设备的第一请求响应消息，第一请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第二终端设备的服务网络设备发送第二请求消息，第二请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于接收来自第二终端设备的服务网络设备的第二请求响应消息，第二请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第二终端设备的服务网络设备发送第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；收发单元 1100，还用于接收来自第二终端设备的服务网络设备的第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息包括第一信息。
可选地，收发单元1100，还用于向第一终端设备发送第一配置消息，第一配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第一配置消息还包括第一信息。
可选地，收发单元1100，还用于接收来自第一终端设备的第一消息，第一消息包括第二终端设备的标识；收发单元1100，还用于向第三终端设备发送第一指示信息，第一指示信息指示第三终端设备无需向第一终端设备发送参考信号，第三终端设备为第二网络设备请求辅助定位目标终端的所有网络设备覆盖的所有终端设备中除第二终端设备之外的终端设备。
示例的，第二终端设备为一组终端设备，该一组终端设备包括一个或多个终端设备。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第二网络设备执行的步骤或者流程，该装置1000可以包括用于执行图4至图10所示实施例中的第二网络设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
又一种可能的设计，该装置1000可以用于执行上文各个方法实施例中第一网络设备所执行的动作，这时，该装置1000可以为第一网络设备或者第一网络设备的组成部件，收发单元1100用于执行上文方法实施例中第一网络设备侧的收发相关的操作，处理单元1200用于执行上文方法实施例中第一网络设备侧的处理相关的操作。
一种可能的实现方式，收发单元1100，用于获取第一信息，第一信息包括第二终端设备的同步信息，第一网络设备是第二终端设备的服务网络设备，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信；收发单元1100，还用于向第二网络设备发送第一信息。
可选地，收发单元1100，还用于接收来自第二网络设备的第二请求消息，第二请求消息用于请求第二终端设备的同步信息；收发单元1100，还用于向第二网络设备发送第二请求响应消息，第二请求响应消息包括第一信息。
可选地，收发单元1100，还用于接收来自第二网络设备的第四请求消息，第四请求消息用于请求配置第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；收发单元1100，还用于向第二网络设备发送第四请求响应消息，第四请求响应消息包括第二终端设备的侧行参考信号的配置信息；第四请求响应消息还包括第一信息。
可选地，收发单元1100，还用于向第二终端设备发送第二消息，第二消息包括第二终端设备的侧行参考信号的配置信息。
可选地，收发单元1100，还用于向第二终端设备发送第五请求消息，第五请求消息用于请求第二终端设备的侧行参考信号的配置信息；收发单元1100，还用于接收来自第二终端设备的第五请求响应消息，第五响应请求消息包括第二终端设备的侧行参考信号的配置信息。
示例的，第二终端设备为一组终端设备，该一组终端设备包括一个或多个终端设备。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第一网络设备执行的 步骤或者流程，该装置1000可以包括用于执行图4至图10所示实施例中的第一网络设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
又一种可能的设计，该装置1000可以用于执行上文各个方法实施例中第二终端设备所执行的动作，这时，该装置1000可以为第二终端设备或者第二终端设备的组成部件，收发单元1100用于执行上文方法实施例中第二终端设备侧的收发相关的操作，处理单元1200用于执行上文方法实施例中第二终端设备侧的处理相关的操作。
一种可能的实现方式，处理单元1200，用于确定第二终端设备的同步信息，第二终端设备的同步信息包括第二终端设备与第二终端设备的同步源的同步信息；收发单元1100，用于向第一设备发送第一信息，第一信息包括第二终端设备的同步信息，其中，第二终端设备用于辅助定位第一终端设备的位置，第二终端设备与第一终端设备之间通过侧行链路进行通信，第一设备为第一终端设备或定位管理功能网元第二网络设备。
可选地，当第一设备为第二网络设备，收发单元1100，还用于接收来自第一设备的第一请求消息，第一请求消息用于请求第二终端设备的同步信息；收发单元1100，用于向第一设备发送第一响应请求消息，第一请求响应消息包括第一信息。
可选地，当第一设备为第一终端设备，收发单元1100，还用于向第一设备发送第二配置消息，第二配置消息包括第二终端设备的侧行参考信号的配置信息，第二终端设备的侧行参考信号的配置信息用于第一终端设备接收第二终端设备的侧行参考信号；第二配置消息还包括第一信息。
可选地，收发单元1100，还用于接收来自第二终端设备的服务网络设备的第二消息，第二消息包括第二终端设备的侧行参考信号的配置信息。
可选地，收发单元1100，还用于接收来自第二终端设备的服务网络设备的第五请求消息，第五请求消息用于请求第二终端设备的侧行参考信号的配置信息；收发单元1100，还用于向第二终端设备的服务网络设备发送第五请求响应消息，第五响应请求消息包括第二终端设备的侧行参考信号的配置信息。
该装置1000可实现对应于根据本申请实施例的方法实施例中的第二终端设备执行的步骤或者流程，该装置1000可以包括用于执行图4至图10所示实施例中的第二终端设备执行的方法的单元。各单元执行上述相应步骤的具体过程在上述各方法实施例中已经详细说明，为了简洁，在此不再赘述。
应理解，这里的装置1000以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行至少一个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置1000可以具体为上述实施例中的第一终端设备，可以用于执行上述各方法实施例中与第一终端设备对应的各个流程和/或步骤；或者，装置1000可以具体为上述实施例中的第二网络设备，可以用于执行上述各方法实施例中与第二网络设备对应的各个流程和/或步骤，或者，装置1000可以具体为上述实施例中的第一网络设备，可以用于执行上述各方法实施例中与第一网络设备对应的各个流程和/或步骤，或者，装置1000可以具体为上述实施例中的第二终端设备，可以用于执行上述各方法实施例中与第二终端设 备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置1000具有实现上述方法中各设备所执行的相应步骤的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括至少一个与上述功能相对应的模块；例如收发单元可以由收发机替代(例如，收发单元中的发送单元可以由发送机替代，收发单元中的接收单元可以由接收机替代)，其它单元，如处理单元等可以由处理器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
此外，上述收发单元1100还可以是收发电路(例如可以包括接收电路和发送电路)，处理单元可以是处理电路。
需要指出的是，图11中的装置可以是前述实施例中的设备，也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。在此不做限定。
图12是本申请提供的通信装置10的示意性结构图。该装置10包括处理器11，处理器11与存储器12耦合，存储器12用于存储计算机程序或指令和/或数据，处理器11用于执行存储器12存储的计算机程序或指令，或读取存储器12存储的数据，以执行上文各方法实施例中的方法。
可选地，处理器11为一个或多个。
可选地，存储器12为一个或多个。
可选地，该存储器12与该处理器11集成在一起，或者分离设置。
可选地，如图12所示，该装置10还包括收发器13，收发器13用于信号的接收和/或发送。例如，处理器11用于控制收发器13进行信号的接收和/或发送。
作为一种方案，该装置10用于实现上文各个方法实施例中由第一终端设备执行的操作。
例如，处理器11用于执行存储器12存储的计算机程序或指令，以实现上文各个方法实施例中第一终端设备的相关操作。例如，图4至图10所示实施例中的第一终端设备执行的方法。
作为另一种方案，该装置10用于实现上文各个方法实施例中由第二网络设备执行的操作。
例如，处理器11用于执行存储器12存储的计算机程序或指令，以实现上文各个方法实施例中第二网络设备的相关操作。例如，图4至图10所示实施例中的第二网络设备执行的方法。
作为又一种方案，该装置10用于实现上文各个方法实施例中由第一网络设备执行的操作。
例如，处理器11用于执行存储器12存储的计算机程序或指令，以实现上文各个方法实施例中第一网络设备的相关操作。例如，图4至图10所示实施例中的第一网络设备执行的方法。
作为又一种方案，该装置10用于实现上文各个方法实施例中由第二终端设备执行的操作。
例如，处理器11用于执行存储器12存储的计算机程序或指令，以实现上文各个方法 实施例中第二终端设备的相关操作。例如，图4至图10所示实施例中的第二终端设备执行的方法。
此外，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中的方法被执行。
本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中的方法被执行。
此外，本申请还提供一种芯片，所述芯片包括处理器。用于存储计算机程序的存储器独立于芯片而设置，处理器用于执行存储器中存储的计算机程序，以使得本申请各方法实施例中的方法被执行。
进一步地，所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口，也可以为接口电路等。进一步地，所述芯片还可以包括存储器。
此外，本申请还提供一种通信系统，包括本申请实施例中的第一终端设备、第二网络设备、第一网络设备和第二终端设备中的一个或多个设备。
应理解，本申请实施例中的处理器可以是集成电路芯片，具有处理信号的能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成，或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DRRAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述的存储器旨在包括但不限于这些和任意其它适合类型存储 器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请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)执行本申请各个实施例所述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、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (35)

  1. 一种定位方法，其特征在于，包括：
    第一终端设备获取第一信息，所述第一信息包括第二终端设备的同步信息，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，其中，所述第二终端设备用于辅助定位所述第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信；
    所述第一终端设备根据所述第一信息确定所述第一终端设备的位置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端设备获取第一信息，包括：
    所述第一终端设备接收来自第二网络设备的所述第一信息；
    或，
    所述第一终端设备接收来自所述第二终端设备的所述第一信息。
  3. 根据权利要求1所述的方法，其特征在于，
    所述第一终端设备获取第一信息，包括：
    所述第一终端设备接收来自第二网络设备的第一配置消息，所述第一配置消息包括所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；所述第一配置消息还包括所述第一信息；
    或，
    所述第一终端设备接收来自所述第二终端设备的第二配置消息，所述第二配置消息包括所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；所述第二配置消息还包括所述第一信息。
  4. 一种定位方法，其特征在于，包括：
    第一终端设备获取第一信息，所述第一信息包括第二终端设备的同步信息，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，其中，所述第二终端设备用于辅助定位所述第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信；
    所述第一终端设备向第二网络设备发送所述第一信息。
  5. 根据权利要求4所述的方法，其特征在于，所述第一终端设备获取第一信息，包括：
    所述第一终端设备接收来自所述第二终端设备的所述第一信息。
  6. 根据权利要求4所述的方法，其特征在于，
    所述第一终端设备获取第一信息，包括：
    所述第一终端设备接收来自所述第二终端设备的第二配置消息，所述第二配置消息包括所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；
    所述第二配置消息还包括所述第一信息。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向第二网络设备发送第一消息，所述第一消息包括所述第二终端设备的标识。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述第二终端设备为一个或多个终端设备。
  9. 一种定位方法，其特征在于，包括：
    第二网络设备获取第一信息，所述第一信息包括第二终端设备的同步信息，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，其中，所述第二终端设备用于辅助定位第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信；
    所述第二网络设备根据所述第一信息确定所述第一终端设备的位置信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第二网络设备获取第一信息，包括：
    所述第二网络设备接收来自所述第二终端设备的所述第一信息；
    或，
    所述第二网络设备接收来自所述第二终端设备的服务网络设备的所述第一信息；
    或，
    所述第二网络设备接收来自所述第一终端设备的所述第一信息。
  11. 根据权利要求10所述的方法，其特征在于，所述第二网络设备获取第一信息，包括：
    所述第二网络设备向所述第二终端设备发送第一请求消息，所述第一请求消息用于请求所述第二终端设备的同步信息，所述第二网络设备接收来自所述第二终端设备的第一请求响应消息，所述第一请求响应消息包括所述第一信息；
    或，
    所述第二网络设备向所述第二终端设备的服务网络设备发送第二请求消息，所述第二请求消息用于请求所述第二终端设备的同步信息，所述第二网络设备接收来自所述第二终端设备的服务网络设备的第二请求响应消息，所述第二请求响应消息包括所述第一信息；
    或，
    所述第二网络设备向所述第一终端设备发送第三请求消息，所述第三请求消息用于请求所述第二终端设备的同步信息，所述第二网络设备接收来自所述第一终端设备的第三请求响应消息，所述第三请求响应消息包括所述第一信息。
  12. 一种定位方法，其特征在于，包括：
    第二网络设备获取第一信息，所述第一信息包括第二终端设备的同步信息，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，其中，所述第二终端设备用于辅助定位第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信；
    所述第二网络设备向所述第一终端设备发送所述第一信息。
  13. 根据权利要求12所述的方法，其特征在于，所述第二网络设备获取第一信息， 包括：
    所述第二网络设备接收来自所述第二终端设备的所述第一信息；
    或，
    所述第二网络设备接收来自所述第二终端设备的服务网络设备的所述第一信息。
  14. 根据权利要求12所述的方法，其特征在于，所述第二网络设备获取第一信息，包括：
    所述第二网络设备向所述第二终端设备发送第一请求消息，所述第一请求消息用于请求所述第二终端设备的同步信息，所述第二网络设备接收来自所述第二终端设备的第一请求响应消息，所述第一请求响应消息包括所述第一信息；
    或，
    所述第二网络设备向所述第二终端设备的服务网络设备发送第二请求消息，所述第二请求消息用于请求所述第二终端设备的同步信息，所述第二网络设备接收来自所述第二终端设备的服务网络设备的第二请求响应消息，所述第二请求响应消息包括所述第一信息。
  15. 根据权利要求9或12所述的方法，其特征在于，
    所述第二网络设备获取第一信息，包括：
    所述第二网络设备向所述第二终端设备的服务网络设备发送第四请求消息，所述第四请求消息用于请求配置所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；
    所述第二网络设备接收来自所述第二终端设备的服务网络设备的第四请求响应消息，所述第四请求响应消息包括所述第二终端设备的侧行参考信号的配置信息；
    所述第四请求响应消息包括所述第一信息。
  16. 根据权利要求9或12所述的方法，其特征在于，
    所述第二网络设备获取第一信息，包括：
    所述第二网络设备向所述第一终端设备发送第一配置消息，所述第一配置消息包括所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；
    所述第一配置消息还包括所述第一信息。
  17. 根据权利要求9至16中任一项所述的方法，其特征在于，所述方法还包括：
    所述第二网络设备接收来自所述第一终端设备的第一消息，所述第一消息包括所述第二终端设备的标识；
    所述第二网络设备向第三终端设备发送第一指示信息，所述第一指示信息指示所述第三终端设备无需向所述第一终端设备发送参考信号，所述第三终端设备为所述第二网络设备请求辅助定位目标终端的所有网络设备覆盖的所有终端设备中除所述第二终端设备之外的终端设备。
  18. 根据权利要求9至17中任一项所述的方法，其特征在于，所述第二终端设备为一个或多个终端设备。
  19. 一种定位方法，其特征在于，包括：
    第一网络设备获取第一信息，所述第一信息包括所述第二终端设备的同步信息，所述 第一网络设备是所述第二终端设备的服务网络设备，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息，所述第二终端设备用于辅助定位第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信；
    所述第一网络设备向第二网络设备发送所述第一信息。
  20. 根据权利要求19所述的方法，其特征在于，所述第一网络设备向第二网络设备发送所述第一信息，包括：
    所述第一网络设备接收来自所述第二网络设备的第二请求消息，所述第二请求消息用于请求第二终端设备的同步信息；
    所述第一网络设备向所述第二网络设备发送第二请求响应消息，所述第二请求响应消息包括所述第一信息。
  21. 根据权利要求19所述的方法，其特征在于，
    所述第一网络设备向第二网络设备发送所述第一信息，包括：
    所述第一网络设备接收来自所述第二网络设备的第四请求消息，所述第四请求消息用于请求配置所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；
    所述第一网络设备向所述第二网络设备发送第四请求响应消息，所述第四请求响应消息包括所述第二终端设备的侧行参考信号的配置信息；
    所述第四请求响应消息还包括所述第一信息。
  22. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述第二终端设备发送第二消息，所述第二消息包括所述第二终端设备的侧行参考信号的配置信息。
  23. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述第二终端设备发送第五请求消息，所述第五请求消息用于请求所述第二终端设备的侧行参考信号的配置信息；
    所述第一网络设备接收来自所述第二终端设备的第五请求响应消息，所述第五响应请求消息包括所述第二终端设备的侧行参考信号的配置信息。
  24. 根据权利要求19至23中任一项所述的方法，其特征在于，第二终端设备为一个或多个终端设备。
  25. 一种定位方法，其特征在于，包括：
    第二终端设备确定所述第二终端设备的同步信息，所述第二终端设备的同步信息包括所述第二终端设备与所述第二终端设备的同步源的同步信息；
    所述第二终端设备向第一设备发送第一信息，所述第一信息包括所述第二终端设备的同步信息，其中，所述第二终端设备用于辅助定位第一终端设备的位置，所述第二终端设备与所述第一终端设备之间通过侧行链路进行通信，所述第一设备为所述第一终端设备或第二网络设备。
  26. 根据权利要求25所述的方法，其特征在于，当所述第一设备为所述第二网络设备，所述第二终端设备向第一设备发送第一信息，包括：
    所述第二终端设备接收来自所述第一设备的第一请求消息，所述第一请求消息用于请 求所述第二终端设备的同步信息；
    所述第二终端设备向所述第一设备发送第一响应请求消息，所述第一请求响应消息包括所述第一信息。
  27. 根据权利要求25所述的方法，其特征在于，当所述第一设备为所述第一终端设备，
    所述第二终端设备向第一设备发送第一信息，包括：
    所述第二终端设备向所述第一设备发送第二配置消息，所述第二配置消息包括所述第二终端设备的侧行参考信号的配置信息，所述第二终端设备的侧行参考信号的配置信息用于所述第一终端设备接收所述第二终端设备的侧行参考信号；
    所述第二配置消息还包括所述第一信息。
  28. 根据权利要求25至27中任一项所述的方法，其特征在于，所述方法还包括：
    所述第二终端设备接收来自所述第二终端设备的服务网络设备的第二消息，所述第二消息包括所述第二终端设备的侧行参考信号的配置信息。
  29. 根据权利要求25至27中任一项所述的方法，其特征在于，所述方法还包括：
    所述第二终端设备接收来自所述第二终端设备的服务网络设备的第五请求消息，所述第五请求消息用于请求所述第二终端设备的侧行参考信号的配置信息；
    所述第二终端设备向所述第二终端设备的服务网络设备发送第五请求响应消息，所述第五响应请求消息包括所述第二终端设备的侧行参考信号的配置信息。
  30. 根据权利要求1至29中任一项所述的方法，其特征在于，
    所述第二终端设备的同步源为所述第二终端设备的服务网络设备，所述同步信息为所述第二终端设备与所述第二终端设备的服务网络设备的子帧边界的时间差；
    或，
    所述第二终端设备的同步源为全球导航卫星系统GNSS，所述同步信息为所述第二终端设备的直接帧号时间偏移。
  31. 一种通信装置，其特征在于，包括执行如权利要求1至30中任一项所述方法的单元或模块。
  32. 一种通信装置，其特征在于，所述通信装置包括至少一个处理器，
    所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求1至8中任一项所述的方法；或者，
    所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求9至18中任一项所述的方法；或者，
    所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求19至24中任一项所述的方法；或者，
    所述至少一个处理器用于执行存储器中存储的计算机程序，以使得所述装置执行如权利要求25至30中任一项所述的方法。
  33. 根据权利要求32所述的装置，其特征在于，所述装置还包括所述存储器和/或通信接口，所述通信接口与所述处理器耦合，
    所述通信接口，用于输入和/或输出信息。
  34. 一种计算机可读存储介质，其特征在于，包括计算机程序，
    当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求1至8中任一项所述的方法；或者，
    当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求9至18中任一项所述的方法；或者，
    当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求19至24中任一项所述的方法；或者，
    当所述计算机程序在计算机上运行时，使得所述计算机执行如权利要求25至30中任一项所述的方法。
  35. 一种计算机程序产品，其特征在于，所述计算机程序产品中包括计算机程序代码，其特征在于：
    当所述计算机程序代码在计算机上运行时，使得计算机实现上述权利要求1至8中任一项所述的方法；或者，
    当所述计算机程序代码在计算机上运行时，使得计算机实现上述权利要求9至18中任一项所述的方法；或者，
    当所述计算机程序代码在计算机上运行时，使得计算机实现上述权利要求19至24中任一项所述的方法；或者，
    当所述计算机程序代码在计算机上运行时，使得计算机实现上述权利要求25至30中任一项所述的方法。
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