Positioning measurement method and apparatus

Abstract

The present application relates to the technical field of communications, and provides a positioning measurement method and apparatus. The method comprises: a target device receives first indication information from an LMF, the first indication information being used for indicating a measurement time window, a positioning reference signal (PRS) resource in the measurement time window pertaining to at least one frequency point, and the at least one frequency point comprising a target frequency point; and on the basis of the first indication information, the target device performs first positioning measurement on the PRS resource of the target frequency point within the measurement time window. On the basis of the described solution, the LMF uses the first indication information to instruct the target device to perform first positioning measurement on the PRS resource of the target frequency point within the measurement time window, thus preventing the target device from arbitrarily selecting a frequency point from a plurality of frequency points within the measurement time window to perform positioning measurement, so that the target device can be prevented from measuring different frequency points in the same measurement time window, and the accuracy of positioning measurement is improved.

Description

Positioning measurement method and device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 27, 2023, with application number 202311270473.9 and application name “Positioning Measurement Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more particularly, to a positioning measurement method and device. Background Art

[0003] Carrier phase positioning technology performs positioning by measuring the carrier phase change of the reference signal from the transmitter to the receiver. However, in carrier phase positioning technology, the terminal device and the reference station (positioning reference unit, PRU) must measure the reference signal sent by the base station at the same time to eliminate some error terms that vary with time. Taking downlink positioning as an example, the positioning management function (LMF) network element on the network side can configure a measurement time window for the terminal device and PRU, and instruct the terminal device and PRU to measure the downlink reference signal resource set within the measurement time window. However, the terminal device and PRU may not be able to measure the reference signal sent by the base station at the same time, resulting in low positioning measurement accuracy.

[0004] Therefore, how to improve the accuracy of positioning measurement is an urgent problem to be solved.

[0005] Summary of the Invention

[0006] The present application provides a positioning measurement method and device, which can improve the accuracy of positioning measurement.

[0007] In a first aspect, a positioning measurement method is provided. The method can be performed by a target device, which can be a terminal device or a positioning assistance device, or a component in the terminal device or positioning assistance device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can implement all or part of the functions of the terminal device, or a logic module or software that can implement all or part of the functions of the positioning assistance device. The method includes: the target device receives first indication information from an LMF, the first indication information is used to indicate a measurement time window, and the positioning reference signal (PRS) resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; the target device performs a first positioning measurement on the PRS resource of the target frequency point within the measurement time window according to the first indication information.

[0008] Here, the PRS resource can be understood as a PRS resource or a PRS resource set.

[0009] Based on the above scheme, LMF instructs the target device to perform the first positioning measurement on the PRS resources of the target frequency point within the measurement time window through the first indication information, thereby avoiding the target device from arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the target device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of the positioning measurement.

[0010] With reference to the first aspect, in certain implementations of the first aspect, all PRS resources within the measurement time window belong to the target frequency point.

[0011] In the case where multiple frequency resource sets exist within the same measurement time window, the target device needs to measure and report the PRS resource sets of multiple frequency points separately when reporting the measurement, which increases the processing complexity. In the embodiment of the present application, the PRS resources within the measurement time window all belong to a single frequency point, which can reduce the processing complexity of the target device performing positioning measurements and improve the efficiency of positioning measurements. In addition, the above scheme can be applied to terminal devices that only support measuring a maximum of one frequency point within a measurement time window, thereby improving the applicability of the positioning measurement method.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the target device performs a first positioning measurement on the PRS resources of the target frequency point within the measurement time window based on the first indication information, including: the target device only performs the first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

[0013] Based on the above scheme, LMF can instruct the target device to perform positioning measurement only on the PRS resources of the target frequency point within the measurement time window, avoiding the target device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0014] In combination with the first aspect, in certain implementations of the first aspect, before the target device performs the first positioning measurement only on the PRS resources of the target frequency point within the measurement time window, the method also includes: the target device sends first capability information to the LMF, and the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one.

[0015] Based on the above solution, if the target device only supports measuring a single frequency within a measurement time window, the LMF can instruct the target device to perform positioning measurements only on the PRS resources of the target frequency within the measurement time window. This solution implements positioning measurements for low-capability target devices and is applicable to terminal devices that only support measuring a maximum of one frequency within a measurement time window, thus improving the applicability of the positioning measurement method.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the target device performs a first positioning measurement on the PRS resources of the target frequency point within the measurement time window based on the first indication information, including: the target device preferentially performs the first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

[0017] Based on the above scheme, LMF can instruct the target device to prioritize positioning measurement of the PRS resources of the target frequency point within the measurement time window, avoiding the target device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0018] In combination with the first aspect, in certain implementations of the first aspect, before the target device preferentially performs the first positioning measurement on the PRS resources of the target frequency point within the measurement time window, the method also includes: the target device sends second capability information to the LMF, and the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window.

[0019] Based on the above solution, if the target device supports measuring multiple frequencies within the measurement time window, the LMF can instruct the target device to prioritize positioning measurements on the PRS resources of the target frequency within the measurement time window. This solution prevents the target device from measuring different frequencies within the same measurement time window, thereby improving positioning measurement accuracy.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the PRS resources within the measurement time window belong to multiple frequency points, and the first indication information also carries a priority, which is used to indicate the order in which the first positioning measurement is performed on multiple frequency points within the measurement time window.

[0021] Based on the above scheme, LMF instructs the target device through priority to perform the first positioning measurement on the PRS resources of multiple frequency points within the measurement time window in a certain order, thereby avoiding the target device from arbitrarily selecting a frequency point from the multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the target device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0022] With reference to the first aspect, in certain implementations of the first aspect, the PRS resources of the target frequency point belong to the same positioning frequency layer (PFL).

[0023] In combination with the first aspect, in some implementations of the first aspect, the first indication information is carried in a positioning request or assistance data.

[0024] In combination with the first aspect, in certain implementations of the first aspect, the method further includes: the target device receives second indication information from the LMF, and the second indication information is used to instruct the target device to perform a second positioning measurement on multiple PRS resources; the target device, based on the second indication information and the first indication information, preferentially performs the second positioning measurement on the PRS resource of the target frequency point among the multiple PRS resources.

[0025] Based on the above solution, the target device prioritizes measuring the PRS resources at the target frequency, preventing the target device from arbitrarily selecting a frequency from multiple frequencies for positioning measurement. This prevents the target device from measuring different frequencies, thereby improving the accuracy of positioning measurement. Furthermore, when performing the second positioning measurement, the target device is not limited to measuring the PRS resources at the target frequency within the measurement time window, making the final second positioning measurement result more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0026] In combination with the first aspect, in some implementations of the first aspect, the first indication information and the second indication information are carried in the same information.

[0027] With reference to the first aspect, in certain implementations of the first aspect, the PRS resource of the target frequency point within the measurement time window is associated with information of a reference network device.

[0028] Based on the above scheme, the PRS resources of the target frequency point within the measurement time window are associated with the information of the reference network device, so that the target device can report the measurement results after differentiation based on the reference network device, avoiding reporting a large number of measurement results for a single PRS to the LMF, reducing communication overhead and reducing the processing burden on the LMF side.

[0029] With reference to the first aspect, in certain implementations of the first aspect, the target device includes a terminal device to be positioned and measured and / or a positioning assistance device.

[0030] In a second aspect, a positioning measurement method is provided. The method can be performed by an LMF, or by a component in the LMF (e.g., a processor, a chip, or a chip system), or by a logic module or software that can implement all or part of the LMF functions. The method includes: the LMF sends first indication information to a target device, the first indication information is used to indicate a measurement time window, the PRS resources within the measurement time window belong to at least one frequency point, the at least one frequency point includes a target frequency point, and the first indication information is further used to instruct the target device to perform a first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

[0031] Based on the above scheme, LMF instructs the target device to perform the first positioning measurement on the PRS resources of the target frequency point within the measurement time window through the first indication information, thereby avoiding the target device from arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the target device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of the positioning measurement.

[0032] In combination with the second aspect, in certain implementations of the second aspect, the method also includes: the LMF receives first capability information from the target device, the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one, and the first indication information is specifically used to instruct the target device to perform the first positioning measurement only on the PRS resources of the target frequency point within the measurement time window.

[0033] Based on the above solution, if the target device only supports measuring one frequency point within the measurement time window, the LMF can instruct the target device to perform positioning measurements only on the PRS resources of the target frequency point within the measurement time window. The above solution implements positioning measurements for low-capability target devices and prevents the target device from measuring different frequencies within the same measurement time window, thereby improving the accuracy of positioning measurements. In addition, the above solution can be applied to terminal devices that only support measuring a maximum of one frequency point within a measurement time window, improving the applicability of the positioning measurement method.

[0034] In combination with the second aspect, in certain implementations of the second aspect, the method also includes: the LMF receives second capability information from the target device, the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window, and the first indication information is specifically used to instruct the target device to prioritize the first positioning measurement of the PRS resources of the target frequency point within the measurement time window.

[0035] Based on the above solution, if the target device supports measuring multiple frequencies within the measurement time window, the LMF can instruct the target device to prioritize positioning measurements on the PRS resources of the target frequency within the measurement time window. This solution prevents the target device from measuring different frequencies within the same measurement time window, thereby improving positioning measurement accuracy.

[0036] In combination with the second aspect, in certain implementations of the second aspect, the method also includes: the LMF sends second indication information to the target device, and the second indication information is used to instruct the target device to perform a second positioning measurement on multiple PRS resources, wherein the first indication information is also used to indicate that the second positioning measurement of the PRS resources of the target frequency point takes precedence over the second positioning measurement of the PRS resources of frequency points other than the target frequency point.

[0037] Based on the above solution, the target device prioritizes measuring the PRS resources at the target frequency, preventing the target device from arbitrarily selecting a frequency from multiple frequencies for positioning measurement. This prevents the target device from measuring different frequencies, thereby improving the accuracy of positioning measurement. Furthermore, when performing the second positioning measurement, the target device is not limited to measuring the PRS resources at the target frequency within the measurement time window, making the final second positioning measurement result more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0038] In a third aspect, a positioning measurement method is provided. The method can be performed by a network device or LMF, or by a component in the network device or LMF (e.g., a processor, chip, or chip system), or by a logic module or software that can implement all or part of the network device functions, or by a logic module or software that can implement all or part of the LMF functions. The method includes: the LMF sends first information to the network device, the first information carrying a measurement time window, and the sounding reference signal (SRS) resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; the network device performs a first positioning measurement on the SRS resource of the target frequency point within the measurement time window based on the first information.

[0039] The SRS resource may be understood as an SRS resource, an SRS resource set, or a bandwidth part (BWP).

[0040] Based on the above scheme, LMF instructs the network device to perform the first positioning measurement on the SRS resources of the target frequency point within the measurement time window through the first information, thereby avoiding the network device arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding each network device measuring different frequency points within the same measurement time window, thereby improving the accuracy of the positioning measurement.

[0041] In combination with the third aspect, in certain implementations of the third aspect, all SRS resources within the measurement time window belong to the target frequency point.

[0042] When multiple frequency resource sets exist within the same measurement time window, the network device needs to measure and report the SRS resource sets for each of the multiple frequency points separately when reporting the measurement, which increases the processing complexity. In the embodiment of the present application, the SRS resources within the measurement time window all belong to a single frequency point, which can reduce the processing complexity of the network device's positioning measurement and improve the efficiency of the positioning measurement.

[0043] In combination with the third aspect, in certain implementations of the third aspect, the network device performs a first positioning measurement on the SRS resources of the target frequency point within the measurement time window based on the first information, including: the network device only performs the first positioning measurement on the SRS resources of the target frequency point within the measurement time window.

[0044] Based on the above scheme, LMF can instruct the network device to perform positioning measurement only on the SRS resources of the target frequency point within the measurement time window, avoiding the network device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0045] In combination with the third aspect, in certain implementations of the third aspect, the network device performs a first positioning measurement on the SRS resources of the target frequency point within the measurement time window based on the first information, including: the network device preferentially performs the first positioning measurement on the SRS resources of the target frequency point within the measurement time window.

[0046] Based on the above solution, LMF can instruct network devices to prioritize SRS resources of the target frequency within the measurement time window for positioning measurement. The above solution avoids network devices measuring different frequencies within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0047] In combination with the third aspect, in certain implementations of the third aspect, the SRS resources within the measurement time window belong to multiple frequency points, and the first information also carries a priority, which is used to indicate the order in which the first positioning measurement is performed on multiple frequency points within the measurement time window.

[0048] Based on the above scheme, LMF instructs the network device to perform the first positioning measurement on the SRS resources of multiple frequency points within the measurement time window in a certain order through priority, avoiding the network device from arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the network device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0049] In combination with the third aspect, in certain implementations of the third aspect, the SRS resources of the target frequency point belong to the same component carrier (CC).

[0050] With reference to the third aspect, in certain implementations of the third aspect, the first information is carried in a measurement request.

[0051] In combination with the third aspect, in certain implementations of the third aspect, the method also includes: the LMF sends second information to the network device, and the second information is used to instruct the network device to perform a second positioning measurement on the multiple SRS resources; the network device performs the second positioning measurement on the SRS resource of the target frequency point among the multiple SRS resources based on the second information and the first information.

[0052] Based on the above solution, the network device prioritizes measuring the SRS resources of the target frequency, avoiding the network device from arbitrarily selecting a frequency point from multiple frequency points for positioning measurement. This can prevent the network device from measuring different frequency points, thereby improving the accuracy of positioning measurement. Furthermore, when performing the second positioning measurement, the network device is not limited to measuring the SRS resources of the target frequency point within the measurement time window, making the final measurement result of the second positioning measurement more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0053] In a fourth aspect, a communication device is provided. The communication device may be a LMF, or a device or module for performing LMF functions; the communication device may be a target device, or a device or module for performing target device functions; the communication device may be a network device, or a device or module for performing network device functions.

[0054] In one possible implementation, the communication device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the first aspect. The module or unit may be a hardware circuit, software, or a combination of hardware circuit and software.

[0055] Exemplarily, the communication device includes: a transceiver unit for receiving a first indication message from the LMF, the first indication message being used to indicate a measurement time window, the PRS resources within the measurement time window belonging to at least one frequency point, the at least one frequency point including a target frequency point; and a processing unit for performing a first positioning measurement on the PRS resources of the target frequency point within the measurement time window according to the first indication message.

[0056] In some implementations, the processing unit is specifically configured to perform the first positioning measurement only on the PRS resource of the target frequency point within the measurement time window.

[0057] In some implementations, the transceiver unit is further configured to: send first capability information to the LMF, where the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one.

[0058] In some implementations, the processing unit is specifically configured to: preferentially perform the first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

[0059] In some implementations, the transceiver unit is further configured to: send second capability information to the LMF, where the second capability information is used to indicate that the target device is capable of measuring multiple frequency points within the measurement time window.

[0060] In some implementations, the transceiver unit is further used to: receive second indication information from the LMF, where the second indication information is used to instruct the target device to perform a second positioning measurement on multiple PRS resources; wherein the processing unit is further used to: based on the second indication information and the first indication information, preferentially perform the second positioning measurement on the PRS resource of the target frequency point among the multiple PRS resources.

[0061] In another possible implementation, the communication device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the second aspect. The module or unit may be a hardware circuit, software, or a combination of hardware circuit and software.

[0062] Exemplarily, the communication device includes: a transceiver unit, used to send a first indication information to the target device, the first indication information is used to indicate a measurement time window, the PRS resources within the measurement time window belong to at least one frequency point, the at least one frequency point includes a target frequency point, and the first indication information is also used to instruct the target device to perform a first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

[0063] In some implementations, the transceiver unit is also used to: receive first capability information from the target device, the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one, and the first indication information is specifically used to instruct the target device to only perform the first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

[0064] In some implementations, the transceiver unit is further used to: receive second capability information from the target device, the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window, and the first indication information is specifically used to instruct the target device to prioritize the first positioning measurement of the PRS resources of the target frequency point within the measurement time window.

[0065] In some implementations, the transceiver unit is further used to: send second indication information to the target device, the second indication information being used to instruct the target device to perform a second positioning measurement on multiple PRS resources, wherein the first indication information is also used to indicate that the second positioning measurement on the PRS resources of the target frequency point takes precedence over the second positioning measurement on the PRS resources of frequency points other than the target frequency point.

[0066] In another possible implementation, the communication device may include a module or unit corresponding to each of the methods / operations / steps / actions described in the third aspect. The module or unit may be a hardware circuit, software, or a combination of hardware circuit and software.

[0067] In a fifth aspect, a communication device is provided, comprising a processor, wherein the processor is used to, by executing a computer program or instruction, or by a processing circuit, enable the communication device to execute the first aspect and any possible method of the first aspect; or enable the communication device to execute the second aspect and any possible method of the second aspect; or enable the communication device to execute the third aspect and any possible method of the third aspect.

[0068] In one possible implementation, the communication device further includes a memory for storing the computer program or instructions. Furthermore, the processor is specifically configured to call and execute the computer program or computer instructions stored in the memory, so that the processor implements any one of the first, second, or third aspects.

[0069] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0070] In a possible implementation, the communication device further includes a transceiver, and the processor is configured to control the transceiver to transmit and receive signals.

[0071] In the sixth aspect, a communication device is provided, comprising a processing circuit (also referred to as a processor) and an input / output interface (also referred to as an interface circuit), the input / output interface being used to input and / or output signals, the processing circuit being used to execute the first aspect and any possible method of the first aspect; or the processing circuit being used to execute the second aspect and any possible method of the second aspect; or the processing circuit being used to execute the third aspect and any possible method of the third aspect.

[0072] In a possible implementation, the processor is configured to communicate with other devices via an interface circuit and execute the method described in the first, second, or third aspect.

[0073] In the seventh aspect, a computer-readable storage medium is provided, on which a computer program or instruction is stored. When the computer program or the instruction is run on a computer, the first aspect and any possible method of the first aspect are executed; or, the second aspect and any possible method of the second aspect are executed; or, the third aspect and any possible method of the third aspect are executed.

[0074] In an eighth aspect, a computer program product is provided, comprising a computer program or instructions, which, when run on a computer, causes the first aspect and any possible method of the first aspect to be executed; or causes the second aspect and any possible method of the second aspect to be executed; or causes the third aspect and any possible method of the third aspect to be executed.

[0075] In a ninth aspect, a communication device is provided, comprising a processor connected to a memory and configured to call a program stored in the memory to execute any possible method of the first, second, or third aspects. The memory may be located within or outside the communication device. The processor may include one or more processors.

[0076] In one implementation, the communication device of the fifth, sixth, and ninth aspects may be a chip or a chip system.

[0077] In a tenth aspect, a chip device is provided, comprising a processor for calling a computer program or computer instruction in a memory so that the processor executes any one of the implementation methods of any one of the first to third aspects above.

[0078] Optionally, the processor is coupled to the memory via an interface.

[0079] In the eleventh aspect, a communication system is provided, which includes a target device and an LMF; the target device is used to execute the method shown in the first aspect, and the LMF is used to execute the method shown in the second aspect.

[0080] In the twelfth aspect, a communication system is provided, which includes a network device and a LMF; the network device and the LMF are used to execute the method shown in the third aspect.

[0081] The description of the beneficial effects of any of the fourth to twelfth aspects, etc. may refer to the description of the beneficial effects of the first, second or third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] FIG1 is a schematic diagram of a communication system used in an embodiment of the present application.

[0083] FIG2 is a schematic diagram of another communication system applied in an embodiment of the present application.

[0084] FIG3 is a schematic flow chart of a positioning measurement method.

[0085] FIG4 is a schematic diagram of an uplink-time difference of arrival (UL-TDOA) positioning technology.

[0086] FIG5 is a schematic diagram of carrier phase ranging.

[0087] FIG6 is a schematic diagram of positioning measurement using the double-difference carrier phase method.

[0088] FIG7 is a schematic diagram of configuring a measurement time window.

[0089] FIG8 is a schematic flowchart of a positioning measurement method provided in an embodiment of the present application.

[0090] FIG9 is a schematic flowchart of another positioning measurement method provided in an embodiment of the present application.

[0091] FIG10 is a schematic flowchart of another positioning measurement method provided in an embodiment of the present application.

[0092] FIG11 is a schematic flowchart of another positioning measurement method provided in an embodiment of the present application.

[0093] FIG12 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0094] FIG13 is a schematic block diagram of another communication device according to an embodiment of the present application.

[0095] FIG14 is a schematic block diagram of another communication device according to an embodiment of the present application.

[0096] FIG15 is a schematic block diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0097] The technical solution in this application will be described below with reference to the accompanying drawings.

[0098] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems. This application is not limited to this.

[0099] In the embodiment of the present application, the network device can be any device with wireless transceiver function. The device includes but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved NodeB, or a home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a 5G, such as a next generation Node Base station (gNB) in an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DPU). unit, DU), etc., or base stations in future communication systems, etc.

[0100] In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC), medium access control (MAC), and physical (PHY) layers. The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by both the DU and the AAU. It is understood that a network device can be a device that includes one or more of a CU node, a DU node, or an AAU node. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or may be classified as a network device in a core network (core network, CN), which is not limited in this application.

[0101] Network equipment provides services for cells, and terminal devices communicate with cells through transmission resources allocated by the network equipment (for example, frequency domain resources, or spectrum resources). The cell can belong to a macro base station (for example, a macro eNB or macro gNB), or to a base station corresponding to a small cell. Small cells here can include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0102] In the embodiments of the present application, a terminal device may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus. A terminal device may be a device that provides voice / data connectivity to a user, such as a handheld device or vehicle-mounted device with wireless connection capabilities. At present, some examples of terminals include: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile internet devices (MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and so on. assistant (PDA), handheld devices with wireless communication capabilities (handsets), computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future public land mobile networks (PLMNs), etc. Wearable devices can also be called wearable smart devices. They are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.In a broad sense, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0103] Furthermore, terminal devices can also be end devices in the Internet of Things (IoT) system. IoT is a crucial component of future information technology development. Its primary technical feature is connecting objects to the Internet through communication technologies, thereby enabling intelligent networks that interconnect humans and machines, and objects and things. IoT technology, for example, utilizes narrowband NB technology to achieve massive connectivity, deep coverage, and power-saving terminals.

[0104] In addition, the terminal device can also be a mobile station (MS), a subscriber unit (subscriber unit), a smart phone (smart phone), a wireless data card, a wireless modem (modem), a laptop computer (laptop computer), a machine type communication (MTC) terminal, etc.

[0105] The reference signal in the embodiment of the present application may include a downlink reference signal, a sidelink reference signal (SL-RS) and / or an uplink reference signal.

[0106] A downlink reference signal may refer to a reference signal sent by a network device to a terminal device. The downlink reference signal may include one or more of the following: a PRS dedicated to positioning proposed in R16, downlink reference signals proposed in other versions (such as a synchronization signal / physical broadcast channel block (SSB), a channel state information reference signal (CSI-RS), a tracking reference signal (TRS), or a downlink demodulation reference signal (DL-DMRS), etc.), or other downlink reference signals in the future, etc., which are not specifically limited in the embodiments of the present application. For example, the downlink reference signal may also include a cell-specific reference signal (CRS) for downlink, a terminal equipment-specific reference signal (UE-RS) for downlink, a channel state information reference signal (CSI-RS) for downlink channel measurement, a group-specific reference signal (GRS) for downlink, a beam reference signal (BRS) for downlink, a beam refinement reference signal (BRRS) for downlink, or a phase compensation reference signal (PCRS) for downlink, a path loss reference signal (PL-RS) for downlink, etc. Among them, the UE-RS for downlink is also called a demodulation reference signal (DMRS) for downlink.

[0107] Uplink reference signals include the demodulation reference signal (DMRS) used for uplink demodulation, the SRS used for uplink channel measurement, or the PCRS used for uplink. The DMRS used for physical uplink control channel (PUCCH) demodulation is called PUCCH DMRS, and the DMRS used for physical uplink shared channel (PUSCH) demodulation is called PUSCH DMRS.

[0108] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is only a description of an association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, bc, ac, or abc, where a, b, c can be single or multiple.

[0109] In addition, in order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. At the same time, in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0110] In addition, the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0111] FIG1 is a schematic diagram of a communication system 100 used in an embodiment of the present application.

[0112] As shown in Figure 1, the communication system 100 includes a terminal device (represented as a UE in Figure 1) and a radio access network (represented as a gNB and a next generation evolved node B (ng-eNB) in Figure 1). ng-eNB represents an LTE base station accessing the 5G core network, and gNB represents a 5G base station accessing the 5G core network. It should be understood that the communication system 100 shown in Figure 1 may include one or more base stations (including ng-eNB or gNB), and may also include one or more terminal devices, for example, one or more terminal device groups, etc., which are not shown in Figure 1 and are not limited in this application. It should be understood that communication between ng-eNB and gNB, or between two ng-eNBs, or between two gNBs is carried out through the Xn interface, which can also be called the XnAP interface. The gNB or Ng-eNB communicates with the UE through the air interface (the radio interface between UTRAN and UE, Uu interface), and the UEs communicate with each other through the proximity-based services communication 5 (PC5) interface.

[0113] FIG2 is a schematic diagram of another communication system 200 applied in an embodiment of the present application.

[0114] As shown in FIG2 , a communication system 200 includes a terminal device (denoted as UE in FIG2 ), a radio access network (denoted as a next generation radio access network (NG-RAN) in FIG2 ) and a core network.

[0115] The radio access network consists of one or more ng-eNBs and gNBs. The radio access network is connected to the core network via the NG-C interface. The radio access network can send and receive PRSs and obtain related measurement information.

[0116] The core network includes functions such as access and mobility management function (AMF) and location management function (LMF).

[0117] LMF is responsible for supporting different types of location services related to UE, including positioning of UE and transmission of auxiliary data to UE. The control plane and user plane of LMF are the enhanced-serving mobile location center (E-SMLC) and the secure user plane locator platform (SLP), respectively. LMF may exchange signals with RAN, such as ng-eNB or gNB, and UE. For example, LMF and ng-eNB or gNB exchange information through new radio positioning protocol annex (NRPPa) messages, such as obtaining configuration information of PRS, SRS, cell timing, cell location information, etc. For another example, LMF and UE transmit UE capability information, auxiliary information, measurement information, etc. through LTE positioning protocol (LPP) messages.

[0118] The AMF can receive location service requests related to the UE from the location service (LCS) entity or other network elements of the 5G core network (5G core, 5GC), or the AMF itself can start some location services on behalf of a specific UE and forward the location service request to the LMF.

[0119] The terminal device connects to the radio access network via the ng-eNB via the LTE-Uu interface. The terminal device can also connect to the radio access network via the gNB via the NR-Uu interface.

[0120] It should be understood that the communication system 200 may include one or more base stations (including ng-eNB or gNB). It should also be understood that the communication system 200 may include one or more terminal devices, for example, one or more terminal device groups.

[0121] It should also be understood that 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 simultaneously. It should be understood that the ng-eNB in ​​Figure 2 can also be a TRP or TP, and the nNB can also be a TRP or transmission measurement function (TMF), etc.

[0122] The embodiments of the present application can also be applied to the communication architecture based on the PC5 interface. For example, the UE may include a location management component (LMC). The LMC is a component / application deployed on the UE with partial LMF functions, which is used to support positioning services on the PC5 port.

[0123] Positioning is a critical function in mobile communication systems, requiring them to provide real-time user location information. 5G communication systems place high-precision demands on positioning, requiring an error of less than 10 meters outdoors and less than 1 meter indoors.

[0124] Positioning technologies include uplink positioning, downlink positioning, and uplink / downlink positioning. In uplink positioning, the base station measures the SRS signal sent by the UE, while in downlink positioning, the UE measures the PRS signal sent by the base station. In uplink / downlink positioning, the UE is required to measure both the PRS signal sent by the base station and the SRS signal sent by the UE.

[0125] Related technical solutions support multiple positioning technologies, including downlink-time difference of arrival (DL-TDOA) positioning technology, downlink-angle of departure (DL-AOD) positioning technology, UL-TDOA positioning technology, uplink-angle of arrival (UL-AOA) positioning technology, and multi-round trip time (multi-RTT) positioning technology. DL-TDOA, UL-TDOA, and multi-RTT are positioning technologies based on time of arrival, meaning the receiver needs to measure the time of arrival of the signal sent by the transmitter, and then convert it into distance information between the two, ultimately obtaining the location of the target to be located. DL-AOD and UL-AOA are angle-based positioning technologies, meaning the receiver measures the angle of arrival of the reference signal sent by the transmitter, and then infers the receiver's location based on the angle information between the receiver and multiple transmitters with known locations.

[0126] Fig. 3 is a schematic flow chart of a positioning measurement method 300. In conjunction with Fig. 3, the positioning process is described below using UL-TDOA as an example.

[0127] UL-TDOA requires measuring the uplink reference signal on the base station side (ie, the network equipment side), for example, measuring the arrival time of the SRS sent by the UE to be located. Referring to Figure 3, the measurement process generally goes through the following steps.

[0128] The LMF requests SRS configuration information from the serving base station, and the serving base station feeds back the SRS configuration information to the LMF; the serving base station sends the SRS configuration information to the UE to be located and indicates the SRS configuration information to the neighboring base station; the LMF sends measurement requests to the serving base station and the neighboring base station. After receiving the measurement request from the LMF, the serving base station and the neighboring base station respectively receive the SRS sent by the UE to be located and measure the arrival time of the SRS respectively; the serving base station and the neighboring base station respectively report the measurement information to the LMF, and the LMF uses the arrival time in the received measurement information to estimate the position and determine the position information of the UE to be located.

[0129] The serving base station is located in the cell where the UE to be located resides. It provides communication connectivity for the UE to be located. There are at least two neighboring base stations. These can be the base station in the cell where the UE to be located resides, base stations in other cells, or base stations that are partly in the cell where the UE to be located and partly in other cells. LMF calculates the position of the UE to be located based on measurement information from the serving base station and neighboring base stations. The following describes the positioning principles and calculation process.

[0130] UL-TDOA positioning works by measuring the time difference between SRS arrival times at different base stations to locate the source of radio signals. Specifically, LMF calculates the time difference between SRS arrival times at two base stations, deriving the distance difference from this time difference, and thus generating a hyperbola. The LMF then uses the time differences measured by three or more base stations to generate two or more hyperbolas. The LMF then locates the source based on the intersection of these two or more hyperbolas.

[0131] Figure 4 is a schematic diagram of the UL-TDOA positioning technology. The UE to be located in Figure 4 can send an SRS. Base stations 1, 2, and 3 in Figure 4 correspond to the serving base station and neighboring base stations that measure the SRS in the above-mentioned UL-TDOA positioning technology. Among base stations 1, 2, and 3, one base station is the serving base station for the terminal device, and the other two base stations are neighboring base stations for the terminal device. Referring to Figure 4, the UE to be located sends an SRS, and base stations 1, 2, and 3 each measure the SRS sent by the UE to be located.

[0132] Assuming that the positions of the three base stations are known, the coordinates of the i-th base station are defined as (x i ,y i ), i=1,2,3; the coordinates of the UE to be located are (x UE ,y UE ), and base station 1 is used as the reference base station, and the arrival time of the SRS measured by the other two base stations is t i , then the arrival time difference between base station 2 and base station 3 and base station 1 is Δt i1According to the definition of a hyperbola (the distance from two fixed points is constant), the UE to be located is located on the hyperbola with base stations 2 and 3 as foci, and the following set of equations can be listed:

[0133] In the above two equations, c is the speed of light, because there are only two unknowns (x UE ,y UE ), and solving the above two equations together can obtain the location information of the UE to be located. In practice, due to measurement errors, the above equations generally do not have analytical solutions. In engineering, optimization algorithms such as least squares algorithms or particle swarm filtering algorithms are often used to estimate the optimal solutions of the above two equations.

[0134] To describe it from another perspective, the arrival time difference between the SRS sent by the UE to be located and the arrival time at base station 1 and base station 2 is Δt 21 The arrival time difference between the SRS sent by the UE to be located and the base station 1 and base station 3 is Δt 31 . The arrival time difference Δt 21 Multiply by the speed of light to get the distance difference L1, and the arrival time difference Δt 21 Multiplying by the speed of light yields the distance difference L2. LMF can generate the hyperbola MN shown in Figure 4 based on the functional relationship between the positions of base stations 1 and 2 and the distance difference L1. It also generates the hyperbola RS shown in Figure 4 based on the functional relationship between the positions of base stations 1 and 3 and the distance difference L2. Furthermore, LMF can locate the UE to be located based on the intersection of hyperbola MN and hyperbola RS.

[0135] It should be noted that in FIG4 , three base stations are used to realize the positioning of the terminal device, but this application does not limit this. In actual applications, more than three base stations can also be used to realize the positioning of the terminal device.

[0136] A related technical solution can employ carrier phase positioning technology for positioning measurements. Carrier phase positioning measures distances with integer ambiguities by measuring the carrier phase variation of a reference signal from the transmitter to the receiver. For example, a 3 GHz RF signal corresponds to a carrier wavelength of 0.1 meters. Therefore, if the integer ambiguities of the carrier phase can be correctly resolved, theoretically, carrier phase ranging accuracy can reach centimeters to millimeters, resulting in high-precision positioning results.

[0137] Figure 5 is a schematic diagram of carrier phase ranging. Referring to Figure 5, d is the distance between the receiving end and the transmitting end, is the carrier phase measurement value, N is the integer ambiguity value, indicating that the reference signal has passed N carrier cycles in space. λ is the carrier wavelength, and the distance d is related to the carrier phase. The following equation is satisfied.

[0138] A positioning assistance device may be referred to as an anchor node, which may transmit and / or measure a PRS or SRS to assist in positioning measurements of a UE to be positioned. A positioning assistance device may be an anchor terminal device, a positioning reference unit (PRU), or the like.

[0139] By measuring the PRS or SRS using a positioning auxiliary device with a known position, the influence of non-ideal factors can be eliminated according to the double-difference carrier phase method to improve positioning accuracy. For example, non-ideal factors may include time synchronization error, random initial phase error, clock drift frequency deviation, and working parameter error of network equipment. The description of carrier phase positioning in R18 also supports the use of PRU to assist in the measurement of carrier phase and improve the accuracy of carrier phase positioning. In conjunction with Figure 6, some embodiments of the double-difference carrier phase method are introduced below, taking downlink positioning as an example.

[0140] FIG6 is a schematic diagram of positioning measurement using the double-difference carrier phase method.

[0141] Referring to Figure 6, assume that the UE to be located (represented by circles in Figure 4), the PRU (represented by squares in Figure 4), and base station i (i is 1, 2, or 3) all have time synchronization errors and random initial phase errors. The UE to be located measures the PRS transmitted by base station i (represented by solid arrows in Figure 4), and the PRU measures the PRS transmitted by base station i (represented by dashed arrows in Figure 4). The phase measurement value of the UE to be located relative to base station i can be determined using the following formula.

[0142] in, is the phase measurement value of the UE to be positioned relative to base station i; is the transmission delay between the UE to be located and base station i; is the time synchronization error between base station i and UE; φ t is the random initial phase error of the UE to be located; φ (i) is the random initial phase error of base station i, is the integer ambiguity between UE and base station i.

[0143] By performing a difference calculation between different base stations, the phase difference of arrival (PDOA) of the UE to be located is obtained. The specific formula is as follows.

[0144] in, is the phase measurement value of the UE to be positioned relative to base station j (j is 1, 2 or 3, j is different from i) The phase measurement value of the UE to be positioned relative to base station i The difference between is the transmission delay between the UE to be located and base station j The transmission delay between the UE to be located and base station i The difference between (ij) is the time synchronization error between base station j and UE Time synchronization error between base station j and UE The difference between (ij) is the random initial phase error φ of base station j (j) and is the random initial phase error φ of base station i (i) The difference between is the integer ambiguity between UE and base station j and is the integer ambiguity between UE and base station i The difference between .

[0145] The above formula can eliminate the random initial phase φ of the UE to be located. t Similarly, the PDOA with respect to PRU can be obtained by the following formula.

[0146] The parameters in the above formula can be found in the calculation The above formula simply replaces the subscript t with the subscript p, and the meanings of the various parameters in the above formula are not repeated here. Subtracting the PDOA for the UE to be located from the PDOA for the PRU yields a double-difference PDOA. The specific formula is as follows.

[0147] in, yes and The difference between for and The difference between for and The difference between .

[0148] The above formula can eliminate the random initial phase error φ on the base station side. (ij) and time synchronization error Δ (ij) , thereby determining according to The difference between the first distance difference and the second distance difference can be determined. The first distance difference is the distance difference between base station i and the UE to be located and the distance between base station i and the PRU, and the second distance difference is the difference between the distance between base station j and the UE to be located and the distance between base station j and the PRU. In other words, by introducing more base stations or PRUs, multiple double-difference PDOAs can be obtained, and combined with the location information of the PRUs and the location information of the base stations, the location estimation result of the UE to be located can be solved.

[0149] For example, a preliminary coarse positioning of the UE to be positioned can be performed by first using a positioning technique based on time of arrival measurement or angle of arrival measurement to determine the PRU closest to the UE. Then, the double-difference carrier phase positioning technique can be used to perform precise positioning measurement of the UE.

[0150] Random initial phase φ on the base station side (i) and time synchronization error Δ (ij) is an error term that varies with time. Therefore, in the above double-difference carrier phase positioning, the UE to be positioned and the PRU must simultaneously measure the PRS sent by the base station, so that the random initial phase error φ on the base station side can be eliminated by the above differential method. (i) and time synchronization error Δ (ij) .

[0151] For example, the LMF may configure a measurement time window for the UE or PRU to be located and instruct the UE or PRU to be located to perform positioning measurements within the measurement time window. The duration of the measurement time window may be 1, 2, 4, 6, 8, 12, or 16 time slots, and the configured measurement time windows may be 1 or 2. Within a measurement time window, there may be one or more frequency resource sets, where the resource sets may be PRS resources or SRS resources, which is not limited in this application.

[0152] For PRS resources, belonging to a frequency point may mean that these PRS resources (or PRS resource set) belong to the same PFL; for SRS resources, belonging to the same frequency point may mean that these SRS resources (or SRS resource set, BWP) belong to the same CC.

[0153] Figure 7 is a schematic diagram of configuring a measurement time window. Referring to Figure 7 , the upper portion of Figure 7 represents the time domain resources for transmission by the UE to be located, where "D" represents a downlink transmission time slot, "U" represents an uplink transmission time slot, and "S" represents a flexible transmission time slot.

[0154] Taking downlink positioning as an example, the LMF network element configures a measurement time window for the UE to be located and the PRU, and instructs the UE to be located and the PRU to measure PRS resources within the measurement time window. If the measurement time window configured by the LMF for the UE to be located or the PRU contains resource sets of multiple frequencies, the UE to be located and the PRU may not be able to simultaneously measure the PRS sent by the base station on a certain frequency.

[0155] Assume that the LMF configures a measurement time window for the UE and PRU, denoted as measurement time window 1. Measurement time window 1 is periodically distributed across the time domain resources of the UE and PRU, as shown in Figure 7. The PRS resources configured within measurement time window 1 belong to two frequency points, frequency point 1 and frequency point 2. In other words, measurement time window 1 contains PRS resources for frequency points 1 and 2. The UE to be located can choose to measure PRS resources for frequency point 1 or frequency point 2 within measurement time window 1, and the PRU can also choose to measure PRS resources for frequency point 1 or frequency point 2 within measurement time window 1.

[0156] In this case, the UE to be located and the PRU may not be able to simultaneously measure the PRS sent by the base station at a certain frequency. For example, the UE to be located measures the PRS resources of frequency 1 in the first measurement time window 1, and measures the PRS resources of frequency 2 in the measurement time window 1 of the next cycle. The PRU measures the PRS resources of frequency 2 in the first measurement time window 1, and measures the PRS resources of frequency 1 in the measurement time window 1 of the next cycle. In this way, the measurement time of the PRS resources of frequency 1 and the PRU of frequency 2 are different, which makes it impossible for the UE to be located and the PRU to eliminate the irrational factors that change with time through the double-difference carrier phase method, affecting the accuracy of the positioning measurement.

[0157] Therefore, how to improve the accuracy of positioning measurement is an urgent problem to be solved.

[0158] FIG8 is a schematic flow chart of a positioning measurement method 800 provided in an embodiment of the present application. The method 800 can improve the accuracy of downlink positioning measurement. The various actions of the method 800 are described below in conjunction with FIG8.

[0159] S810: The target device receives first indication information from the LMF. The first indication information indicates a measurement time window. PRS resources within the measurement time window belong to at least one frequency, including a target frequency. In response, the LMF sends the first indication information to the target device. The first indication information further instructs the target device to perform a first positioning measurement on the PRS resources of the target frequency within the measurement time window.

[0160] In some embodiments, the target device includes a terminal device and / or a positioning assistance device to be positioned and measured. That is, the LMF may send the first indication information to the terminal device, may send the first indication information to the positioning assistance device, or may send the first indication information to both the terminal device and the positioning assistance device. The positioning assistance device may be one or more. The positioning assistance device may be a PRU or other device.

[0161] The first indication information may be carried in any message, such as in assistant data. The assistant data may also carry the configuration of some or all PRS resources, and may also carry the coordinates of the network device (e.g., gNB coordinates or TRP coordinates). For example, the first indication information may be carried in a positioning request, which may be used to request the target device to measure PRS resources.

[0162] The first indication information may be used to indicate a measurement time window, but this application does not limit this. For example, the first indication information may also carry an indication of the measurement time window, or the first indication information may include the measurement time window.

[0163] It is understandable that each of the multiple time windows may be configured with PRS resources of one frequency point or multiple frequencies, or may not be configured with PRS resources. Among them, the time window configured with at least one frequency point can be selected as the measurement time window.

[0164] In some embodiments, the PRS resources in the measurement time window all belong to the target frequency point. In other words, the PRS resources in the measurement time window belong to only one frequency point. In other words, there are only PRS resources at one frequency point in the measurement time window.

[0165] PRS resources belonging to the same frequency point may mean that these PRS resources belong to the same PFL. For example, the PRS resources of the target frequency point belong to the same PFL. PRS resources belonging to the same frequency point may also mean that these PRS resources have the same absolute radio frequency channel number (ARFCN). For example, the PRS resources of the target frequency point have the same ARFCN. PRS resources belonging to the same frequency point may also mean that these PRS resources have the same frequency point parameter (point A). For example, the PRS resources of the target frequency point have the same point A.

[0166] In the case where multiple frequency resource sets exist within the same measurement time window, the target device needs to measure and report the PRS resource sets of multiple frequency points separately when reporting the measurement, which increases the processing complexity. In the embodiment of the present application, the PRS resources within the measurement time window all belong to a single frequency point, which can reduce the processing complexity of the target device performing positioning measurements and improve the efficiency of positioning measurements. In addition, the above scheme can be applied to terminal devices that only support measuring a maximum of one frequency point within a measurement time window, thereby improving the applicability of the positioning measurement method.

[0167] In some other embodiments, the PRS resources within the measurement time window belong to multiple frequency points. The first indication information may be used to indicate one of the multiple frequency points as a target frequency point.

[0168] The PRS resource may refer to a PRS resource or a PRS resource set. The PRS resource within the measurement time window may be one or more PRS resources, or one or more PRS resource sets.

[0169] The first positioning measurement may be a positioning measurement of the carrier phase or a positioning measurement of the time. For example, the measurement result of the positioning measurement of the carrier phase may include the carrier phase (reference signal carrier phase, RSCP) of the reference signal resource set and / or the carrier phase difference (reference signal carrier phase difference, RSCPD) of the reference signal resource set, etc. For another example, the measurement result of the positioning measurement of time may include at least one of the following: relative time of arrival (RTOA), reference signal arrival time difference (RSTD), transmit and receive time difference (Rx-Tx time difference) of the terminal device, transmit and receive time difference (Rx-Tx time difference) of the base station, etc.

[0170] S820: The target device performs a first positioning measurement on the PRS resource of the target frequency within the measurement time window according to the first indication information.

[0171] Based on the above scheme, LMF instructs the target device to perform the first positioning measurement on the PRS resources of the target frequency point within the measurement time window through the first indication information, thereby avoiding the target device from arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the target device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of the positioning measurement.

[0172] In some embodiments, S820 includes: the target device only performs the first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

[0173] As an example, the LMF may choose to configure a time window of only one frequency point as the measurement time window. In this way, the PRS resources in the measurement time window indicated by the first indication information sent by the LMF in S810 all belong to one frequency point.

[0174] As another example, the LMF may select a time window configured with multiple frequency points as a measurement time window, and indicate one of the multiple frequency points within the measurement time window as a target frequency point.

[0175] Based on the above scheme, LMF can instruct the target device to perform positioning measurement only on the PRS resources of the target frequency point within the measurement time window, avoiding the target device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0176] In some embodiments, before the target device performs the first positioning measurement only on the PRS resource of the target frequency within the measurement time window, the method 800 further includes: the target device sending first capability information to the LMF, where the first capability information is used to indicate that the target device can measure one frequency within the measurement time window. Correspondingly, the LMF receives the first capability information from the target device, where the first indication information is specifically used to instruct the target device to perform the first positioning measurement only on the PRS resource of the target frequency within the measurement time window.

[0177] It is understood that the target device can report the maximum number of PRS resources that can be supported for measurement within a measurement time window, and help the LMF configure the number of frequencies within the measurement time window by reporting capabilities (capability transfer). For the purpose of distinction, when the number of frequency points that the target device can measure within the measurement time window is one, the capability information reported by the target device is called first capability information.

[0178] Based on the above solution, when the target device only supports measuring one frequency point within the measurement time window, the LMF can instruct the target device to perform positioning measurements only on the PRS resources of the target frequency point within the measurement time window. The above solution implements positioning measurements for target devices with low capabilities (such as reduced capability (RedCap)), and is applicable to terminal devices that only support measuring a maximum of one frequency point within a measurement time window, thereby improving the applicability of the positioning measurement method.

[0179] In some embodiments, S820 includes: the target device preferentially performs the first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

[0180] As an example, the LMF can indicate one of multiple frequencies within a measurement time window as the target frequency, and instruct the target device to prioritize measuring the PRS resource of the target frequency within the measurement time window. For example, measurement time window 1 includes frequency 1 and frequency 2, and assuming the target frequency is 1. In this way, the target device can prioritize measuring frequency 1 in the first measurement time window and measure frequency 2 in the next measurement time window 1, thereby avoiding the target device measuring different frequencies within the same measurement time window.

[0181] Based on the above scheme, LMF can instruct the target device to prioritize positioning measurement of the PRS resources of the target frequency point within the measurement time window, avoiding the target device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0182] In some embodiments, before the target device preferentially performs the first positioning measurement on the PRS resource of the target frequency within the measurement time window, the method 800 further includes: the target device sending second capability information to the LMF, where the second capability information is used to indicate that the target device can measure multiple frequencies within the measurement time window. Correspondingly, the LMF receives the second capability information from the target device, where the first indication information is specifically used to instruct the target device to preferentially perform the first positioning measurement on the PRS resource of the target frequency within the measurement time window.

[0183] It is understood that the target device can report the maximum number of PRS resources that can be supported for measurement within a measurement time window, and by reporting capabilities, it helps the LMF configure the number of frequencies within the measurement time window. For the purpose of distinction, when the target device can measure multiple frequencies within the measurement time window, the capability information reported by the target device is called second capability information.

[0184] Based on the above solution, if the target device supports measuring multiple frequencies within the measurement time window, the LMF can instruct the target device to prioritize positioning measurements on the PRS resources of the target frequency within the measurement time window. This solution prevents the target device from measuring different frequencies within the same measurement time window, thereby improving positioning measurement accuracy.

[0185] In some embodiments, the PRS resources within the measurement time window belong to multiple frequency points, and the first indication information further carries a priority, which is used to indicate the order in which the first positioning measurement is performed on the multiple frequency points within the measurement time window.

[0186] The PRS resources within the measurement time window belong to multiple frequencies. That is, the PRS resources within the measurement time window indicated by the first indication information sent by the LMF can be resources of different frequencies. In other words, there can be cross-frequency resources within the measurement time window, and these resources belong to different PFLs or have different ARFCNs.

[0187] The first indication information also carries the priority, which can be understood as the first indication information also indicating the priority, or can also be understood as the first indication information also including the priority.

[0188] Priority can be understood as the frequency priority of different frequency points within the measurement time window. Priority is the order of positioning measurement of PRS resources of different frequency points within the measurement time window. The target device can measure and report multiple frequency points within the measurement time window according to the order of priority. For example, there are four frequency points {1, 2, 3, 4}, two measurement time windows {1, 2}, measurement time window 1 contains PRS resources of frequency points {1, 3}, and measurement time window 2 contains PRS resources of frequency points {2, 4}. By indicating that the priority of the frequency points is {1, 2, 3, 4}, the target device can first measure the PRS resources of frequency point 1 and then measure the PRS resources of frequency point 3 within measurement time window 1. In the case where the target device includes a UE to be located and a positioning assistance device, the UE to be located and the positioning assistance device can simultaneously measure the PRS resources of frequency points 1 and frequency point 3. Similarly, for measurement time window 2, the target device can first measure the PRS resources of frequency 2 and then measure the PRS resources of frequency 4. When the target device includes the UE to be located and the positioning auxiliary device, the above scheme realizes the simultaneous measurement of the PRS resources of frequency 2 and frequency 4 by the UE to be located and the positioning auxiliary device.

[0189] It should be noted that the present application does not limit the order in which the priority must indicate all frequency points within the measurement time window for performing the first positioning measurement. For example, the priority may indicate the order in which some frequency points within the measurement time window perform the first positioning measurement. For frequency points whose priority does not indicate an order, the target device may perform positioning measurement according to the existing scheme, or may not perform positioning measurement. That is, the target device may first measure the PRS resources of the frequency points indicated in the priority in the order of priority, and then measure the PRS resources of the frequency points not indicated in the priority in a random order. Alternatively, the target device may only measure the PRS resources of the frequency points indicated in the priority in the order of priority, and not measure the PRS resources of the frequency points not indicated in the priority.

[0190] Based on the above scheme, LMF instructs the target device through priority to perform the first positioning measurement on the PRS resources of multiple frequency points within the measurement time window in a certain order, thereby avoiding the target device from arbitrarily selecting a frequency point from the multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the target device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0191] In some embodiments, the method 800 further includes: the target device receiving second indication information from the LMF, the second indication information being used to instruct the target device to perform a second positioning measurement on a plurality of PRS resources; and the target device preferentially performing the second positioning measurement on a PRS resource of the target frequency among the plurality of PRS resources based on the second indication information and the first indication information. Correspondingly, the LMF sends second indication information to the target device, the first indication information being further used to indicate that the second positioning measurement on the PRS resource of the target frequency takes precedence over the second positioning measurement on PRS resources of frequencies other than the target frequency.

[0192] The second indication information can be the same as the first indication information. In other words, a single indication information can instruct the target device to perform both the first and second positioning measurements. In this case, the second indication information can also be referred to as the first indication information. Alternatively, the second indication information and the first indication information can be issued simultaneously.

[0193] Exemplarily, the first indication information and the second indication information are carried in the same message. Alternatively, it can be understood that the first indication information and the second indication information are included in the same message. Exemplarily, the first indication information and the second indication information can be carried in auxiliary data or a positioning request, or in other messages.

[0194] The second positioning measurement is similar to the first positioning measurement, except that the second positioning measurement is a measurement of the PRS resources and is not limited to the PRS resources within the measurement time window. In other words, the second positioning measurement can measure both the PRS resources within the measurement time window and the PRS resources outside the measurement time window. It should be understood that the number of PRS resources on the time-frequency resources is usually greater than the number of PRS resources configured in the measurement time window. Therefore, the PRS resources measured by the target device on the time-frequency resources will be greater than the PRS resources measured only within the time window, so that the measurement result of the final time will be more accurate, thereby making the positioning of the terminal device more accurate. Alternatively, since the target device can measure both the PRS resources within the time window and the PRS resources outside the time window, the measured PRS resources will be more than the PRS resources measured only within the measurement time window, which will also make the final measurement result more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0195] Accordingly, the second positioning measurement is preferentially performed on the PRS resource of the target frequency among the multiple PRS resources, and is not limited to the PRS resource of the target frequency within the measurement time window. In other words, the second positioning measurement can measure the PRS resource of the target frequency within the measurement time window, and can also measure the PRS resource of the target frequency outside the measurement time window.

[0196] Based on the above solution, the target device prioritizes measuring the PRS resources at the target frequency, preventing the target device from arbitrarily selecting a frequency from multiple frequencies for positioning measurement. This prevents the target device from measuring different frequencies, thereby improving the accuracy of positioning measurement. Furthermore, when performing the second positioning measurement, the target device is not limited to measuring the PRS resources at the target frequency within the measurement time window, making the final second positioning measurement result more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0197] In some embodiments, the PRS resource of the target frequency point within the measurement time window is associated with information of a reference network device.

[0198] For example, assume there are three PRS resources in the target frequency: PRS resource 1, PRS resource 2, and PRS resource 3. The target device receives PRSs from base stations 1, 2, and 3, respectively, based on PRS resource 1, PRS resource 2, and PRS resource 3, thereby performing positioning measurements on PRS resource 1, PRS resource 2, and PRS resource 3. Base station 1 is the reference network device, and PRS resource 1, PRS resource 2, and PRS resource 3 are all associated with the information of base station 1. In this way, the target device can differentiate the measurement results of PRS resource 1 and PRS resource 2, and the measurement results of PRS resource 1 and PRS resource 3, and report the differentiated measurement results to the LMF.

[0199] If the PRS resource at the target frequency within the measurement time window is not associated with the reference network device information, the target device cannot determine the differential measurement result based on the reference network device and cannot determine the reference network device information. The differential measurement result may not be based on the same reference network device, and thus can only report the measurement result of a single PRS resource. In this case, the target device needs to report more measurement results, and the LMF needs to receive and process more measurement results, which increases communication overhead and increases the processing burden on the LMF side.

[0200] Based on the above scheme, the PRS resources of the target frequency point within the measurement time window are associated with the information of the reference network device, so that the target device can report the measurement results after differentiation based on the reference network device, avoiding reporting a large number of measurement results for a single PRS to the LMF, reducing communication overhead and reducing the processing burden on the LMF side.

[0201] Fig. 9 is a schematic flow chart of another positioning measurement method 800 provided in an embodiment of the present application. The method 800 shown in Fig. 9 includes the following steps.

[0202] Step 1: LMF obtains the capabilities of the target device through the LPP capability transfer process. This step can be regarded as capability reporting. The reported capability information may include the PRS resources or resource sets of the maximum number of frequency points supported by the target device to be measured within a measurement time window.

[0203] Step 2: The LMF makes an information request to the serving base station and neighboring base stations (e.g., gNB or TRP), requesting gNB / TRP information. The requested information includes the serving base station and neighboring base station cell information, the serving base station and neighboring base station coordinates, the serving base station and neighboring base station IDs, and the PRS resource configuration.

[0204] Step 3: The serving base station and neighboring base station (e.g., gNB or TRP) send an information response to the LMF in response to the requested information. The response information includes the serving base station and neighboring base station's cell information, their coordinates, their IDs, and PRS resource configuration.

[0205] Step 4: The LMF transmits or provides assistance data to the target device. The assistance data includes the PRS resource configuration. The assistance data may also include the coordinates of the serving base station and neighboring base stations. The assistance data is also called assistance information.

[0206] Step 5: The LMF requests location information from the target device and requests that the target device measure a PRS. The location request may include first indication information, which indicates the measurement time window and the target frequency within the measurement time window. If there are multiple frequencies within the measurement time window, the frequency priority may also be indicated.

[0207] It should be noted that the first indication information may also be sent in step 4, that is, carried in the auxiliary data.

[0208] Step 6: The target device measures the PRS and obtains a measurement result. For example, the measurement result may include RSTD and RSCPD, but this application is not limited to this. For example, the measurement result may also be other time measurement quantities or other carrier phase measurement quantities.

[0209] Step 7: The target device reports the measurement results to LMF.

[0210] Some embodiments of downlink positioning are introduced above in conjunction with FIG8 and FIG9 . Some embodiments of uplink positioning are introduced below.

[0211] FIG10 is a schematic flow chart of another positioning measurement method 1000 provided in an embodiment of the present application. This method 1000 can improve the accuracy of downlink positioning measurement. The various actions of the method 1000 are described below in conjunction with FIG10.

[0212] S1010. The LMF sends first information to the network device. The first information carries a measurement time window. The SRS resources within the measurement time window belong to at least one frequency point. The at least one frequency point includes a target frequency point.

[0213] In some embodiments, the target device includes the serving base station where the terminal device to be located and / or a neighboring base station of the serving base station is located. That is, the LMF may send the first information to the serving base station, to a neighboring base station, or to both the serving base station and the neighboring base stations. The neighboring base station may be one or more. The neighboring base station may be a gNB or another base station such as a TRP.

[0214] The first information is similar to the first indication information, with one difference being that the first information is sent by the LMF to the network device, and the first indication information is sent by the LMF to the target device.

[0215] The first information may be used to indicate a measurement time window, but this application is not limited thereto. For example, the first information may also carry an indication of the measurement time window, or the first information may include an indication of the measurement time window. The meaning of the measurement time window is consistent with the above and is not repeated here.

[0216] The first information may be carried in any message, for example, in a measurement request. The measurement request may also carry configuration of part or all of the SRS resources.

[0217] It is understandable that each of the multiple time windows may be configured with SRS resources of one frequency point or multiple frequencies, or may not be configured with SRS resources. Among them, a time window configured with at least one frequency point can be selected as the measurement time window.

[0218] In some embodiments, all SRS resources in the measurement time window belong to the target frequency. In other words, the SRS resources in the measurement time window belong to only one frequency. In other words, there is only one SRS resource at one frequency in the measurement time window.

[0219] SRS resources belonging to the same frequency point may mean that these SRS resources belong to the same CC. For example, the SRS resources of the target frequency point belong to the same CC. SRS resources belonging to the same frequency point may also mean that these SRS resources have the same ARFCN. For example, the SRS resources of the target frequency point have the same ARFCN. SRS resources belonging to the same frequency point may also mean that these SRS resources have the same carrier. For example, the SRS resources of the target frequency point have the same carrier.

[0220] When multiple frequency resource sets exist within the same measurement time window, the network device needs to measure and report the SRS resource sets for each of the multiple frequency points separately when reporting the measurement, which increases the processing complexity. In the embodiment of the present application, the SRS resources within the measurement time window all belong to a single frequency point, which can reduce the processing complexity of the network device's positioning measurement and improve the efficiency of the positioning measurement.

[0221] In some other embodiments, the SRS resources within the measurement time window belong to multiple frequency points. The first information may be used to indicate one of the multiple frequency points as a target frequency point.

[0222] The SRS resource may refer to an SRS resource, an SRS resource set, or a BWP. The SRS resource within the measurement time window may be multiple SRS resources, multiple SRS resource sets, or multiple BWPs.

[0223] The first positioning measurement can be a positioning measurement of a carrier phase or a positioning measurement of time. The specific meaning can be found in the above description of the first positioning measurement, which will not be repeated here.

[0224] S1020: The network device performs a first positioning measurement on the SRS resource of the target frequency within the measurement time window according to the first information.

[0225] Based on the above scheme, LMF instructs the network device to perform the first positioning measurement on the SRS resources of the target frequency point within the measurement time window through the first information, thereby avoiding the network device arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding each network device measuring different frequency points within the same measurement time window, thereby improving the accuracy of the positioning measurement.

[0226] In some embodiments, S1020 includes: the network device only performs the first positioning measurement on the SRS resource of the target frequency point within the measurement time window.

[0227] As an example, the LMF may choose to configure a time window of only one frequency point as the measurement time window. In this way, the SRS resources in the measurement time window indicated by the first information sent by the LMF all belong to one frequency point.

[0228] As another example, the LMF may select a time window configured with multiple frequency points as a measurement time window, and indicate one of the multiple frequency points within the measurement time window as a target frequency point.

[0229] Based on the above scheme, LMF can instruct the network device to perform positioning measurement only on the SRS resources of the target frequency point within the measurement time window, avoiding the network device measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0230] In some embodiments, S1020 includes: the network device preferentially performs the first positioning measurement on the SRS resource of the target frequency point within the measurement time window.

[0231] As an example, the LMF can indicate one of multiple frequency points within a measurement time window as the target frequency point, and instruct the network device to prioritize measuring the SRS resources of the target frequency point within the measurement time window. For example, there are frequency points 1 and frequency point 2 within measurement time window 1, and it is assumed that the target frequency point is 1. In this way, the network device can prioritize measuring frequency point 1 in the first measurement time window and measure frequency point 2 in the measurement time window 1 of the next cycle, thereby avoiding the network device measuring different frequency points within the same measurement time window.

[0232] Based on the above solution, LMF can instruct network devices to prioritize SRS resources of the target frequency within the measurement time window for positioning measurement. The above solution avoids network devices measuring different frequencies within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0233] In some embodiments, the SRS resources within the measurement time window belong to multiple frequency points, and the first information further carries a priority, which is used to indicate the order in which the first positioning measurement is performed on the multiple frequency points within the measurement time window.

[0234] The SRS resources within the measurement time window belong to multiple frequencies. That is, the SRS resources within the measurement time window indicated by the first information sent by the LMF can be resources of different frequencies. In other words, there can be cross-frequency resources within the measurement time window. These resources belong to different CCs, or have different ARFCNs, or different absolute frequencies. In this way, when carrier aggregation exists, that is, when there are multiple CCs within a measurement time window, the measurement time window also contains multiple frequencies.

[0235] The first information also carries the priority, which can be understood as the first information also indicating the priority, or can also be understood as the first information also including the priority.

[0236] Priority can be understood as the frequency priority of different frequency points within the measurement time window. Priority is the order of positioning measurement of SRS resources of different frequency points within the measurement time window. The network device can measure and report multiple frequency points within the measurement time window according to the order of priority. For example, there are four frequency points {1, 2, 3, 4}, two measurement time windows {1, 2}, measurement time window 1 contains SRS resources of frequency points {1, 3}, and measurement time window 2 contains SRS resources of frequency points {2, 4}. By indicating that the priority of the frequency points is {1, 2, 3, 4}, the network device can first measure the SRS resources of frequency point 1 and then measure the SRS resources of frequency point 3 within the measurement time window 1. In the case where the network device includes a serving base station and a neighboring base station, the serving base station and the neighboring base station can measure the SRS resources of frequency point 1 and frequency point 3 simultaneously. Similarly, for measurement time window 2, the network equipment can first measure the SRS resources of frequency 2, and then measure the SRS resources of frequency 4. When the network equipment includes a serving base station and a neighboring base station, the above scheme realizes the simultaneous measurement of the SRS resources of frequency 2 and frequency 4 by the serving base station and the neighboring base station.

[0237] It should be noted that the present application does not limit the order in which the priority must indicate all the frequency points within the measurement time window for performing the first positioning measurement. For example, the priority may indicate the order in which some of the frequency points within the measurement time window perform the first positioning measurement. For frequency points whose priority does not indicate an order, the network device may perform positioning measurements according to the existing scheme, or may not perform positioning measurements. That is, the network device may first measure the SRS resources of the frequency points indicated in the priority in the order of priority, and then measure the SRS resources of the frequency points not indicated in the priority in a random order. Alternatively, the network device may only measure the SRS resources of the frequency points indicated in the priority in the order of priority, and not measure the SRS resources of the frequency points not indicated in the priority.

[0238] Based on the above scheme, LMF instructs the network device to perform the first positioning measurement on the SRS resources of multiple frequency points within the measurement time window in a certain order through priority, avoiding the network device from arbitrarily selecting a frequency point from multiple frequency points within the measurement time window for positioning measurement, thereby avoiding the network device from measuring different frequency points within the same measurement time window, thereby improving the accuracy of positioning measurement.

[0239] In some embodiments, the method also includes: the LMF sends second information to the network device, and the second information is used to instruct the network device to perform a second positioning measurement on the multiple SRS resources; the network device performs the second positioning measurement on the SRS resource of the target frequency point among the multiple SRS resources in priority based on the second information and the first information.

[0240] The second information can be the same instruction as the first information. In other words, a single message can instruct the network device to perform both the first and second positioning measurements. In this case, the second information can also be referred to as the first information. Alternatively, the second information and the first information can be sent simultaneously.

[0241] Exemplarily, the first information and the second information are carried in the same message. It can also be understood that the first information and the second information are included in the same message. Exemplarily, the first information and the second information can be carried in a measurement request or in other messages.

[0242] It should be noted that the second positioning measurement is performed on SRS resources, not limited to SRS resources within the measurement time window. The description of the second positioning measurement on SRS resources can be found in the description of the measurement on PRS resources above, which will not be repeated here.

[0243] Based on the above solution, the network device prioritizes measuring the SRS resources of the target frequency, avoiding the network device from arbitrarily selecting a frequency point from multiple frequency points for positioning measurement. This can prevent the network device from measuring different frequency points, thereby improving the accuracy of positioning measurement. Furthermore, when performing the second positioning measurement, the network device is not limited to measuring the SRS resources of the target frequency point within the measurement time window, making the final measurement result of the second positioning measurement more accurate, thereby improving the overall positioning accuracy of the terminal device.

[0244] Fig. 11 is a schematic flow chart of another positioning measurement method 1000 provided in an embodiment of the present application. The method 1000 shown in Fig. 11 includes the following steps.

[0245] Step 1: LMF sends a positioning information request to the serving base station through NRPPa, requesting to configure SRS resources for the target.

[0246] Step 2: The serving base station determines available SRS resources and sends configuration information of the SRS resources to the target device.

[0247] Step 3: The serving base station sends a positioning information response via NRPPa, reporting the configuration information of the SRS resources to the LMF.

[0248] Step 4: The LMF sends the SRS configuration and measurement request to the base stations participating in positioning (e.g., neighboring base stations) via NRPPa. The measurement request may include first information, which may indicate the measurement time window and the target frequency within the time measurement window. If there are multiple frequencies within the time measurement window, the first information may also indicate the priority of these frequencies.

[0249] Step 5: Each base station (eg, a serving base station and multiple neighboring base stations) measures the SRS sent by the target device.

[0250] Step 6: Each base station sends a measurement response to the LMF based on the measurement time information, indicating the measurement results of the target device, such as the carrier phase and time.

[0251] Step 7: LMF performs location calculation of the terminal device based on the measurement results.

[0252] The following is an introduction to the device embodiment corresponding to the method embodiment of the present application. The following is only a brief introduction to the device, and the specific implementation steps and details of the solution can be referred to the method embodiment above.

[0253] To implement the various functions of the methods provided herein, both terminal devices and network devices may include hardware structures and / or software modules, with the aforementioned functions implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0254] Figure 12 is a schematic block diagram of a communication device 1200 according to an embodiment of the present application. The communication device 1200 includes a processor 1210 and a communication interface 1220. The processor 1210 and the communication interface 1220 may be interconnected via a bus 1230. The communication device 1200 may be a target device (e.g., a terminal device or a PRU), a network device (e.g., a serving base station or a neighboring base station), or a LMF.

[0255] Optionally, the communication device 1200 may further include a memory 1240. The memory 1240 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM). The memory 1240 is used for related instructions and data. The memory 1240 may be integrated with the processor 1210 or provided separately.

[0256] The processor 1210 may be one or more central processing units (CPUs). In the case where the processor 1210 is a CPU, the CPU may be a single-core CPU or a multi-core CPU. The processor 1210 may be a signal processor, a chip, or other integrated circuit that can implement the method of the present application, or a portion of the circuitry used for processing functions in the aforementioned processor, chip, or integrated circuit. In addition, the communication interface 1220 may also be an input / output interface, which is used for inputting or outputting signals or data, or may be an input / output circuit.

[0257] When the communication apparatus 1200 is a target device, illustratively, the processor 1210 is configured to perform the following operations: receive first indication information from the LMF; and perform a first positioning measurement on a PRS resource of a target frequency point within the measurement time window according to the first indication information.

[0258] When the communication apparatus 1200 is a LMF, illustratively, the processor 1210 is configured to perform the following operations: sending first indication information to the target device.

[0259] When the communication apparatus 1200 is a network device, illustratively, the processor 1210 is configured to perform the following operations: receive first information from the LMF; and perform a first positioning measurement on an SRS resource of a target frequency point within a measurement time window according to the first information.

[0260] The above contents are merely exemplary descriptions. When the communication device 1200 is a terminal device or a network device, it will be responsible for executing the methods or steps related to the terminal device or the network device in the above method embodiments.

[0261] It is understood that when the communication device 1200 is a target device or a network device, the communication interface 1220 may also be referred to as a transceiver. The transceiver may include a transmitter and a receiver, where the transmitter is configured to perform a transmission operation and the receiver is configured to perform a reception operation. For example, the processor 1210 is configured to control the transceiver to receive and / or transmit signals.

[0262] It should be noted that the communication device 1200 may include a transmitter but not a receiver. Alternatively, the communication device 1200 may include a receiver but not a transmitter. The specific implementation depends on whether the above solution executed by the communication device 1200 includes a sending action and a receiving action.

[0263] The above description is merely exemplary. For details, please refer to the contents of the above method embodiments. The implementation of each operation in FIG12 may also correspond to the corresponding description of the method embodiments shown in FIG8 to FIG11.

[0264] For example, the communication device 1200 may be used to perform the downlink positioning measurement solution shown in FIG. 8 or FIG. 9 .

[0265] When the communication device 1200 is a target device: the communication interface 1220 is used to receive a first indication information from the LMF, where the first indication information is used to indicate a measurement time window, and the positioning reference signal PRS resources within the measurement time window belong to at least one frequency point, and the at least one frequency point includes a target frequency point; the processor 1210 is used to perform a first positioning measurement on the PRS resources of the target frequency point within the measurement time window according to the first indication information.

[0266] When the communication device 1200 is an LMF: the communication interface 1220 is used to send a first indication message to the target device, where the first indication message is used to indicate a measurement time window, where the positioning reference signal PRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point. The first indication message is also used to instruct the target device to perform a first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

[0267] For another example, the communication device 1200 may be used to execute the uplink positioning measurement solution shown in FIG. 10 or FIG. 11 .

[0268] When the communication device 1200 is a network device: the communication interface 1220 is used to receive first information from the LMF, the first information carries a measurement time window, and the sounding reference signal SRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; the processor 1210 is used to perform a first positioning measurement on the SRS resource of the target frequency point within the measurement time window according to the first information.

[0269] When the communication device 1200 is LMF: the communication interface 1220 is used to send first information to the network device, where the first information carries a measurement time window, and the sounding reference signal SRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes the target frequency point.

[0270] For other implementations, please refer to the detailed description of the embodiment shown in Figure 8 or Figure 9 above, which will not be repeated here. It should be understood that the specific process of each component performing the above corresponding process has been detailed in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0271] Figure 13 is a schematic block diagram of another communication device 1300 according to an embodiment of the present application. Communication device 1300 may be a target device, a network device, or an LMF, or may be a chip or module within the target device, network device, or LMF, and is configured to implement the methods described in the embodiments of Figures 8 to 11. For details, please refer to the relevant descriptions of the aforementioned method embodiments.

[0272] The communication device 1300 includes a transceiver unit 1310. The transceiver unit 1310 is described below by way of example.

[0273] The transceiver unit 1310 may include a transmitting unit and a receiving unit. The transmitting unit is used to perform the transmitting action of the communication device, and the receiving unit is used to perform the receiving action of the communication device. For ease of description, the embodiments of this application combine the transmitting unit and the receiving unit into a single transceiver unit. This is described here for a unified explanation and will not be repeated later. The transceiver unit 1310 can implement corresponding communication functions. The transceiver unit 1310 can also be referred to as a communication interface or communication module.

[0274] It should be noted that the communication device 1300 may include a sending unit but not a receiving unit. Alternatively, the communication device 1300 may include a receiving unit but not a sending unit. The specific implementation depends on whether the above solution executed by the communication device 1300 includes a sending action and a receiving action.

[0275] When the communication apparatus 1300 is a target device, illustratively, the transceiver unit 1310 is configured to receive first indication information from the LMF, etc.

[0276] Optionally, the communication apparatus 1300 may further include a processing unit 1320 configured to execute the contents of steps involving processing, coordination, etc. on the target device.

[0277] When the communication device 1300 is a LMF, illustratively, the transceiver unit 1310 is configured to send first indication information, etc. to a target device.

[0278] Optionally, the communication device 1300 may further include a processing unit 1320, which is used to execute the content of the LMF involving processing, coordination and other steps.

[0279] When the communication device 1300 is a network device, illustratively, the transceiver unit 1310 is used to receive the first information from the LMF, etc.

[0280] Optionally, the communication device 1300 may further include a processing unit 1320, which is used to execute the content of steps involving processing, coordination, etc. of the network device.

[0281] The above contents are merely exemplary descriptions. When the communication device 1300 is a target device, LMF or network device, it will be responsible for executing the methods or steps related to the target device, LMF or network device in the above method embodiments.

[0282] Optionally, the communication device 1300 further includes a storage unit 1330, which is configured to store a program or code for executing the aforementioned method. Alternatively, the storage unit 1330 may be configured to store instructions and / or data, and the processing unit 1320 may read the instructions and / or data in the storage unit 1330 to enable the communication device 1300 to implement the aforementioned method embodiment. For example, the communication device 1300 may be configured to execute the downlink positioning measurement solution illustrated in FIG. 8 or FIG. 9 .

[0283] When the communication device 1300 is a target device: the transceiver unit 1310 is used to receive a first indication information from the LMF, where the first indication information is used to indicate a measurement time window, and the positioning reference signal PRS resources within the measurement time window belong to at least one frequency point, and the at least one frequency point includes a target frequency point; the processing unit 1320 is used to perform a first positioning measurement on the PRS resources of the target frequency point within the measurement time window according to the first indication information.

[0284] When the communication device 1300 is an LMF: the transceiver unit 1310 is used to send a first indication message to the target device, where the first indication message is used to indicate a measurement time window, and the positioning reference signal PRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point. The first indication information is also used to instruct the target device to perform a first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

[0285] For another example, the communication device 1300 may be used to perform the uplink positioning measurement solution shown in FIG. 8 or FIG. 9 .

[0286] When the communication device 1300 is a network device: the transceiver unit 1310 is used to receive first information from the LMF, the first information carries a measurement time window, and the sounding reference signal SRS resources within the measurement time window belong to at least one frequency point, and the at least one frequency point includes a target frequency point; the processing unit 1320 is used to perform a first positioning measurement on the SRS resources of the target frequency point within the measurement time window according to the first information.

[0287] When the communication device 1300 is LMF: the transceiver unit 1310 is used to send first information to the network device, where the first information carries a measurement time window, and the sounding reference signal SRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes the target frequency point.

[0288] For other implementations, please refer to the detailed description of the embodiment shown in Figure 10 or Figure 11, which will not be repeated here. It should be understood that the specific process of each component performing the above corresponding process has been detailed in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0289] The device embodiments shown in Figures 12 and 13 are used to implement the contents described in Figures 8 to 11. The specific execution steps and methods of the devices shown in Figures 12 and 13 can refer to the contents described in the above method embodiments.

[0290] The present application further provides an apparatus 1400, which may be a target device, a processor in the target device, or a chip. The apparatus 1400 may be used to execute the operations executed by the target device in the above method embodiment.

[0291] When apparatus 1400 is a target device, FIG14 shows a simplified schematic diagram of the target device structure. As shown in FIG14 , the target device includes a processor, a memory, and a transceiver. The memory can store computer program code, and the transceiver includes a transmitter 1431, a receiver 1432, a radio frequency circuit (not shown), an antenna 1433, and input / output devices (not shown).

[0292] The processor is mainly used to process communication protocols and communication data; control the target device, execute software programs and process the data of software programs, etc.

[0293] Memory is mainly used to store software programs and data.

[0294] Radio frequency circuits are mainly used for conversion between baseband signals and radio frequency signals and for processing radio frequency signals.

[0295] Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

[0296] The input and output device may include a touch screen, a display screen, or a keyboard. The input and output device is mainly used to receive data input by the user and output data to the user. It should be noted that some types of target devices may not have input and output devices.

[0297] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. Then, the RF circuit performs RF processing on the baseband signal and sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the target device, the RF circuit receives the RF signal through the antenna. The RF circuit converts the RF signal into a baseband signal and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Figure 14 only shows one memory, processor and transceiver. In the actual target device product, there may be one or more processors and one or more memories. The memory may also be called a storage medium or a storage device, etc. The memory may be set independently of the processor or integrated with the processor, and the embodiments of the present application do not limit this.

[0298] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions may be regarded as the transceiver module of the target device, and the processor with processing function may be regarded as the processing module of the target device.

[0299] As shown in FIG14 , the target device includes a processor 1410, a memory 1420, and a transceiver 1430. The processor 1410 may also be referred to as a processing unit, a processing board, a processing module, or a processing device. The transceiver 1430 may also be referred to as a transceiver unit, a transceiver, or a transceiver device.

[0300] Optionally, the device implementing the receiving function in transceiver 1430 is considered a receiving module, and the device implementing the transmitting function in transceiver 1430 is considered a transmitting module. That is, transceiver 1430 includes a receiver and a transmitter. A transceiver may also be sometimes referred to as a transceiver, a transceiver module, or a transceiver circuit. A receiver may also be sometimes referred to as a receiver, a receiving module, or a receiving circuit. A transmitter may also be sometimes referred to as a transmitter, a transmitting module, or a transmitting circuit.

[0301] The processor 1410 is used to execute the processing actions on the target device side in the embodiments shown in Figures 8 and 9. The transceiver 1430 is used to execute the transceiver actions on the target device side in the embodiments shown in Figures 8 and 9.

[0302] When the apparatus 1400 is a chip, the chip includes a processor, a memory, and a transceiver. The transceiver may be an input / output circuit or a communication interface. The processor may be a processing module, a microprocessor, or an integrated circuit integrated on the chip. In the above method embodiments, the target device's sending operation may be understood as an output of the chip, and the target device's receiving operation may be understood as an input of the chip.

[0303] The present application further provides an apparatus 1500, which may be a network device or LMF, or a chip of the network device or LMF. The apparatus 1500 may be used to perform the operations performed by the network device or LMF in the embodiments shown in FIG8 to FIG11 .

[0304] Figure 15 shows a simplified structural diagram. Apparatus 1500 includes part 1510, part 1520, and part 1530.

[0305] Part 1510 is mainly used for baseband processing, base station control, etc.; Part 1510 is usually the control center of device 1500, which can usually be called a processor, used to control device 1500 to perform the processing operations on the network device or LMF side in the above method embodiment.

[0306] The 1520 section is primarily used to store computer program code and data.

[0307] Section 1530 is primarily used for receiving and transmitting RF signals and converting RF signals to baseband signals. Section 1530 can generally be referred to as a transceiver module, transceiver, transceiver circuit, or transceiver. The transceiver module in section 1530, which can also be referred to as a transceiver or transceiver, includes an antenna 1533 and a RF circuit (not shown in the figure), where the RF circuit is primarily used for RF processing. Optionally, the device used to implement the receiving function in section 1530 can be considered a receiver, and the device used to implement the transmitting function can be considered a transmitter. That is, section 1530 includes a receiver 1532 and a transmitter 1531. A receiver can also be referred to as a receiving module, receiver, or receiving circuit, and a transmitter can be referred to as a transmitting module, transmitter, or transmitting circuit.

[0308] Sections 1510 and 1520 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control device 1500. If multiple boards are present, the boards may be interconnected to enhance processing capabilities. As an alternative embodiment, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may simultaneously share one or more processors.

[0309] For example, in one implementation, the transceiver module in section 1530 is used to perform the transceiver-related processes performed by the LMF in the embodiments shown in Figures 8 and 9. The processor in section 1510 is used to perform the processing-related processes performed by the LMF in the embodiments shown in Figures 8 and 9.

[0310] For example, in another implementation, the transceiver module in section 1530 is used to execute the transceiver-related processes performed by the network device or LMF in the embodiments shown in Figures 10 and 11. The processor in section 1510 is used to execute the processing-related processes performed by the network device or LMF in the embodiments shown in Figures 10 and 11.

[0311] When apparatus 1500 is a chip, the chip includes a transceiver, memory, and a processor. The transceiver may be an input / output circuit or a communication interface; the processor may be a processor, microprocessor, or integrated circuit integrated on the chip. In the above method embodiments, the transmission operation of the network device or LMF can be understood as an output of the chip, and the reception operation of the network device or LMF in the above method embodiments can be understood as an input of the chip.

[0312] The present application also provides a chip, including a processor, for calling and executing instructions stored in a memory, so that a communication device equipped with the chip executes the methods in the above examples.

[0313] The present application also provides another chip, comprising: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is configured to execute code in a memory. When the code is executed, the processor is configured to execute the methods in the above examples. Optionally, the chip also includes a memory, which is configured to store computer programs or code.

[0314] The present application also provides a processor for coupling with a memory, and for executing the methods and functions involving a network device, LMF or target device in any of the above embodiments.

[0315] In another embodiment of the present application, a computer program product including a computer program or instructions is provided. When the computer program product is run on a computer, the method of the aforementioned embodiment is implemented.

[0316] The present application also provides a computer program. When the computer program is executed in a computer, the method of the aforementioned embodiment is implemented.

[0317] In another embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program. When the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0318] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0319] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0320] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0321] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0322] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0323] If 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. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, 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 and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0324] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A positioning measurement method, characterized in that: include: The target device receives first indication information from the positioning management function LMF, where the first indication information is used to indicate a measurement time window, where a positioning reference signal PRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; The target device performs a first positioning measurement on the PRS resource of the target frequency point within the measurement time window according to the first indication information.

2. The method according to claim 1, characterized in that The PRS resources within the measurement time window all belong to the target frequency point.

3. The method according to claim 1, characterized in that The target device performs a first positioning measurement on the PRS resource of the target frequency point within the measurement time window according to the first indication information, including: The target device performs the first positioning measurement only on the PRS resources of the target frequency point within the measurement time window.

4. The method according to claim 3, characterized in that Before the target device performs the first positioning measurement only on the PRS resource of the target frequency point within the measurement time window, the method further includes: The target device sends first capability information to the LMF, where the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one.

5. The method according to claim 1, characterized in that The target device performs a first positioning measurement on a PRS resource of a target frequency point within the measurement time window according to the first indication information, including: The target device preferentially performs the first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

6. The method according to claim 5, characterized in that Before the target device preferentially performs the first positioning measurement on the PRS resource of the target frequency point within the measurement time window, the method further includes: The target device sends second capability information to the LMF, where the second capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is multiple.

7. The method according to claim 5 or 6, characterized in that: The PRS resources within the measurement time window belong to multiple frequency points, and the first indication information further carries a priority, where the priority is used to indicate an order in which the first positioning measurement is performed on the multiple frequency points within the measurement time window.

8. The method according to any one of claims 1 to 7, characterized in that The PRS resources of the target frequency point belong to the same positioning frequency layer PFL.

9. The method according to any one of claims 1 to 8, characterized in that The first indication information is carried in a positioning request or assistance data.

10. The method according to any one of claims 1 to 9, characterized in that Also includes: The target device receives second indication information from the LMF, where the second indication information is used to instruct the target device to perform a second positioning measurement on a plurality of PRS resources; The target device preferentially performs the second positioning measurement on the PRS resource of the target frequency point among the multiple PRS resources according to the second indication information and the first indication information.

11. A positioning measurement method, characterized in that: include: The positioning management function LMF sends a first indication message to the target device, where the first indication message is used to indicate a measurement time window, where the positioning reference signal PRS resources within the measurement time window belong to at least one frequency point, where the at least one frequency point includes a target frequency point, and the first indication message is also used to instruct the target device to perform a first positioning measurement on the PRS resources of the target frequency point within the measurement time window.

12. The method according to claim 11, characterized in that Also includes: The LMF receives first capability information from the target device, where the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one, and the first indication information is specifically used to instruct the target device to perform the first positioning measurement only on the PRS resources of the target frequency point within the measurement time window.

13. The method according to claim 11, characterized in that Also includes: The LMF receives second capability information from the target device, where the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window, and the first indication information is specifically used to indicate that the target device prioritizes the first positioning measurement of the PRS resources of the target frequency point within the measurement time window.

14. The method according to any one of claims 11 to 13, characterized in that Also includes: The LMF sends second indication information to the target device, and the second indication information is used to instruct the target device to perform a second positioning measurement on multiple PRS resources, wherein the first indication information is also used to indicate that the second positioning measurement of the PRS resources of the target frequency point takes precedence over the second positioning measurement of the PRS resources of frequency points other than the target frequency point.

15. A positioning measurement method, characterized in that: include: The positioning management function LMF sends first information to the network device, where the first information carries a measurement time window, where the sounding reference signal SRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; The network device performs a first positioning measurement on the SRS resource of the target frequency point within the measurement time window according to the first information.

16. The method according to claim 15, characterized in that The SRS resources within the measurement time window all belong to the target frequency point.

17. The method according to claim 15, characterized in that The network device performs a first positioning measurement on the SRS resource of the target frequency point within the measurement time window according to the first information, including: The network device performs the first positioning measurement only on the SRS resources of the target frequency point within the measurement time window.

18. The method according to claim 15, characterized in that The network device performs a first positioning measurement on the SRS resource of the target frequency point within the measurement time window according to the first information, including: The network device preferentially performs the first positioning measurement on the SRS resources of the target frequency point within the measurement time window.

19. The method according to claim 18, characterized in that The SRS resources within the measurement time window belong to multiple frequency points, and the first information further carries a priority, where the priority is used to indicate an order in which the first positioning measurement is performed on the multiple frequency points within the measurement time window.

20. The method according to any one of claims 15 to 19, characterized in that The SRS resources of the target frequency point belong to the same component carrier CC.

21. The method according to any one of claims 15 to 20, characterized in that The first information is carried in the measurement request.

22. The method according to any one of claims 15 to 21, characterized in that Also includes: The LMF sends second information to the network device, where the second information is used to instruct the network device to perform a second positioning measurement on the multiple SRS resources; The network device performs the second positioning measurement preferentially on the SRS resource of the target frequency point among the multiple SRS resources according to the second information and the first information.

23. A communication device, characterized in that: comprising a processor configured to, by executing a computer program or instructions, or, by means of a logic circuit, The communication device is caused to execute the method according to any one of claims 1 to 10, or The communication device is caused to execute the method according to any one of claims 11 to 14, or The communication device is enabled to execute the method according to any one of claims 15 to 22.

24. A computer-readable storage medium, characterized in that: The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed on a computer, so that the method of any one of claims 1 to 10 is performed, or, so that the method of any one of claims 11 to 14 is performed, or, The method according to any one of claims 15 to 22 is performed.

25. A communication device, characterized in that: The communication device comprises: a transceiver unit, configured to receive first indication information from a positioning management function LMF, wherein the first indication information is used to indicate a measurement time window, wherein a positioning reference signal PRS resource within the measurement time window belongs to at least one frequency point, and the at least one frequency point includes a target frequency point; A processing unit is used to perform a first positioning measurement on the PRS resource of the target frequency point within the measurement time window according to the first indication information.

26. The communication device according to claim 25, characterized in that The processing unit is specifically used for: The first positioning measurement is performed only on the PRS resources of the target frequency point within the measurement time window.

27. The communication device according to claim 26, characterized in that The transceiver unit is also used for: Sending first capability information to the LMF, where the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one.

28. The communication device according to claim 25, characterized in that The processing unit is specifically used for: The first positioning measurement is preferentially performed on the PRS resources of the target frequency point within the measurement time window.

29. The communication device according to claim 28, characterized in that The transceiver unit is also used for: Sending second capability information to the LMF, where the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window.

30. The communication device according to any one of claims 25 to 29, characterized in that: The transceiver unit is also used for: receiving second indication information from the LMF, where the second indication information is used to instruct the target device to perform a second positioning measurement on a plurality of PRS resources; wherein the processing unit is further used to: The second positioning measurement is performed preferentially on the PRS resource of the target frequency point among the multiple PRS resources according to the second indication information and the first indication information.

31. A communication device, characterized in that: include: A transceiver unit is used to send first indication information to a target device, where the first indication information is used to indicate a measurement time window, where a positioning reference signal PRS resource within the measurement time window belongs to at least one frequency point, where the at least one frequency point includes a target frequency point, and the first indication information is also used to instruct the target device to perform a first positioning measurement on the PRS resource of the target frequency point within the measurement time window.

32. The communication device according to claim 31, characterized in that The transceiver unit is also used for: Receive first capability information from the target device, where the first capability information is used to indicate that the number of frequency points that the target device can measure within the measurement time window is one, and the first indication information is specifically used to instruct the target device to perform the first positioning measurement only on the PRS resources of the target frequency point within the measurement time window.

33. The communication device according to claim 31, characterized in that The transceiver unit is also used for: Receive second capability information from the target device, where the second capability information is used to indicate that the target device can measure multiple frequency points within the measurement time window, and the first indication information is specifically used to instruct the target device to prioritize the first positioning measurement of the PRS resources of the target frequency point within the measurement time window.

34. The communication device according to any one of claims 31 to 33, characterized in that: The transceiver unit is also used for: Sending second indication information to the target device, wherein the second indication information is used to instruct the target device to perform a second positioning measurement on multiple PRS resources, wherein the first indication information is also used to indicate that the second positioning measurement of the PRS resources of the target frequency point takes precedence over the second positioning measurement of the PRS resources of frequency points other than the target frequency point.

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