Positioning method and device, chip system and storage medium

Abstract

The invention discloses a positioning method and device, a chip system and a storage medium, which are used for more accurate positioning based on information of a reflecting surface for indicating a path. In the application, a first device receives at least one first signal. The first device determines first information from measurements of a plurality of paths of at least one first signal. The first information includes information indicating reflective surfaces of the plurality of paths. The first information can indicate the reflecting surfaces of the plurality of paths, so that the first information can be used for assisting in constructing a more accurate geometrical relationship model among the plurality of paths, and the accuracy of the position information can be improved when the positioning management device solves the position information of the to-be-positioned device based on the geometrical relationship model.

Description

Technical Field

[0001] The present application relates to the field of positioning technology, and in particular to a positioning method, device, chip system and storage medium. Background Art

[0002] With the rapid development of communication technology, high-precision positioning has gradually been identified as an important research project in the 5th generation mobile networks or 5th generation wireless systems (5G) of the 3rd Generation Partnership Project (3GPP). The scenarios of New Radio (NR) positioning mainly include: enhanced mobile broadband (eMBB) outdoor, eMBB indoor, ultra-reliable and low latency communications (URLLC) and massive machine type of communication (mMTC) / Internet of things (IOT). It is also required to have high security, scalability, high availability and accuracy assurance in high-speed applications.

[0003] The 3GPP standard supports multiple positioning technologies such as downlink time of arrival (DL-TDOA), downlink angle of departure (DL-AOD), uplink time of arrival (UL-TDOA), uplink angle of arrival (UL-AOA), and roundtrip time (RTT). Positioning technologies can be mainly divided into uplink positioning technologies, downlink positioning technologies, and uplink / downlink positioning technologies. Uplink positioning technologies include, for example, UL-AOA, in which the base station can measure the signal sent by the terminal to obtain the angle of arrival (AOA), which can be used to estimate the position of the terminal. Uplink / downlink positioning technologies include, for example, RTT, in which both the terminal and the base station need to measure the arrival time of the received signal to calculate the RTT.

[0004] Positioning technology requires the devices involved in positioning to send signals, and the measurement results of these signals can be used to locate the devices to be located. How to improve positioning accuracy has become an urgent problem to be solved. Summary of the invention

[0005] Embodiments of the present application provide a positioning method, device, chip system, and storage medium for more accurate positioning based on information of a reflective surface used to indicate a path.

[0006] For example, the base station sends at least one positioning reference signal (PRS), and the terminal measures the at least one PRS to obtain measurement results of multiple paths. The terminal sends a sounding reference signal (SRS) along the transmission direction of these paths. The measurement values ​​such as the arrival angle and the round-trip delay RTT corresponding to the SRS and PRS can be used to solve the position of the terminal. However, the transmission directions of the multiple paths obtained by the terminal are not fixed. Some paths may be direct paths, some may be reflected paths reflected by the ground, and some may be reflected paths reflected by the wall. When the transmission directions of the multiple paths are different, the several relationships constructed by the multiple paths may be different, and the algorithms for solving the position information corresponding to these different geometric relationships may also be different.

[0007] For example, if one path is a direct path and another path is a ground reflection path, the geometric relationship constructed by multiple paths in this scenario can be solved using algorithm #1 to obtain the position information. For another example, if one path is a direct path and another path is a wall reflection path, the geometric relationship constructed by multiple paths in this scenario needs to be solved using algorithm #2 to obtain the position information.

[0008] However, in the existing solutions, the positioning management device cannot distinguish the geometric relationship between the multiple paths measured by the UE, and thus cannot find a more accurate geometric relationship model.

[0009] In the solution provided by the present application, the positioning management device can obtain the first information, and the first information can indicate the reflection surfaces of multiple paths. The positioning management device can construct a more accurate geometric relationship model between the multiple paths based on the reflection surface information of the multiple paths, and the position information of the device to be positioned can be solved more accurately based on the geometric relationship model.

[0010] The solution provided by this application is introduced below.

[0011] In a first aspect, an embodiment of the present application provides a communication method, which can be applied to a first device. The first device can be, for example, a terminal or a unit, module, or chip (system) inside the terminal. The first device can also be a network device or a chip (system) inside the network.

[0012] In this solution, a first device receives at least one first signal, determines first information based on measurement results of multiple paths of the at least one first signal, and includes information for indicating transmission directions of the multiple paths.

[0013] Since the first information can indicate the transmission directions of multiple paths, the first information can be used to construct a more accurate geometric relationship model between the multiple paths, and then the positioning management device can improve the accuracy of the position information when solving the position information of the device to be positioned based on the geometric relationship model.

[0014] The information used to indicate the transmission direction of the path in the present application may include information used to indicate the reflective surface of the path and / or information used to indicate the path.

[0015] In a possible implementation, the information of the reflection surface indicating the path includes: the reflection surface information of the path among the multiple paths. The reflection surface information can reflect the transmission direction of the reflection path among the multiple paths, and then a set relationship model between the paths can be constructed based on the transmission direction of the path.

[0016] In one possible embodiment, the information of the reflective surface indicating the path includes at least one of the following: information of the type of the reflective surface indicating the path; information of the material of the reflective surface indicating the path; information of the reflectivity of the reflective surface indicating the path; information of the reflection energy of the reflective surface indicating the path; information of the surface characteristics of the reflective surface indicating the path; information of the direction of the reflective surface indicating the path; or information of the position of the reflective surface indicating the path.

[0017] The first device can identify the information of these reflective surfaces through its own sensors and / or based on the information of the reflection paths among the received multiple paths, and then infer the transmission direction of the paths based on this information. This solution can reduce the identification difficulty of the first device.

[0018] In a possible implementation manner, the information used to indicate the path further includes: angle information of a path among the multiple paths. The angle information of the path can more accurately indicate the transmission direction of the path.

[0019] In a possible implementation, the information for indicating the multiple paths further includes: type information of the paths among the multiple paths. The type information of the path indicates that the type of the path includes a reflection path or a direct path; or the type information of the path indicates that the type of the path includes a line of sight (LOS) path or other path. The type information of the path is easier to identify, and the information can also indicate the transmission direction of the path, which can reduce the identification difficulty of the first device.

[0020] In a possible implementation, the information for indicating the multiple paths also includes information for indicating at least one of the following: the order of the paths among the multiple paths when the paths of at least one first signal are ordered according to the order of arrival time; or the order of the paths among the multiple paths when the paths of at least one first signal are ordered according to the order of received power strength. Such information is easier to identify, and the information can also indicate the transmission direction of the path, thereby reducing the difficulty of identification by the first device.

[0021] In a possible implementation, the first information further includes at least one of the following: information indicating the arrival time of a path among the multiple paths; information indicating the arrival angle of a path among the multiple paths; or information indicating the round-trip delay corresponding to a path among the multiple paths.

[0022] The first information may also include some measurement results, which may be obtained by measuring the first signal (such as arrival time, arrival angle, or phase difference, etc.), or may be obtained by combining the measurement result of the first signal with the measurement results of other signals (such as the measurement result obtained by the third device measuring the second signal and the third signal from the first device) (such as round-trip delay). These measurement results can assist the positioning management device in positioning.

[0023] In a possible implementation, the positioning management device and the first device may be located in the same device or in different devices. When located in different devices, the first device sends the first information so that the positioning management device can use a more appropriate algorithm to solve the location information of the first device in combination with the first information.

[0024] In a possible implementation, before the first device determines the first information based on the measurement results of multiple paths of at least one first signal, the first device receives first configuration information, where the first configuration information includes information of the path to be searched. The first device measures the at least one first signal based on the first configuration information to obtain the measurement results of multiple paths of the at least one first signal.

[0025] The first device measures at least one first signal received, and may obtain a direct path or a reflected path. Since the direct path is unobstructed, the direct path has a stronger capability and is easier to measure by the first device. However, the reflected path is difficult to measure because the propagation path is long and the path loss is large. In this implementation, the first configuration information can indicate the direction of the path to be searched by the first device, so the first device can direct the receiving beam in the direction indicated by the first configuration information. When the direction of the receiving beam matches the direction of the path to be received, the first device receives a larger amount of energy in the path, thereby improving the accuracy of the measurement of the path.

[0026] In a possible implementation, the information of the path to be searched includes: information of the reflection surface of the path to be searched. In this way, when searching for the path of the first signal, the first device may direct the receiving beam toward the reflection surface indicated by the first configuration information, which may also be understood as matching the information of the reflection surface toward which the receiving beam is directed with the information of the reflection surface indicated by the first configuration information. For example, the reflection surface information of a path among the multiple paths is the same as the reflection surface information of the path to be searched.

[0027] In one possible embodiment, the reflection surface information of the path to be searched includes at least one of the following: information for indicating the type of the reflection surface of the path to be searched; information for indicating the material of the reflection surface of the path to be searched; information for indicating the reflectivity of the reflection surface of the path to be searched; information for indicating the reflection energy of the reflection surface of the path to be searched; information for indicating the surface characteristics of the reflection surface of the path to be searched; information for indicating the direction of the reflection surface of the path to be searched; or information for indicating the position of the reflection surface of the path to be searched.

[0028] The first device can identify the information of the above-mentioned reflection surfaces through its own sensors and / or based on the information of the reflection paths among the multiple paths received. The positioning management device sends the information of the reflection surfaces of the paths to be searched, which can facilitate the first device to find the reflection surfaces with the same information as the reflection surfaces of the paths to be searched. This solution can reduce the execution difficulty on the first device side.

[0029] In a possible implementation, the information of the reflective surface of the path indicated by the first information matches the information of the reflective surface of the path to be searched, for example, the type or material of the reflective surfaces indicated by the two are the same, or the reflectivity, reflection energy, surface features, direction or position indicated by the two are relatively close or the same.

[0030] In a possible implementation, the information of the path to be searched also includes: angle information of the path to be searched. In this way, the first device can match the direction of the receiving beam with the angle information of the path, for example, the angle indicated by the angle information of the path among the multiple paths includes the angle indicated by the angle information of the path to be searched. This solution is relatively easy to implement.

[0031] In a possible implementation, the information of the path to be searched further includes: type information of the path to be searched, the type information of the path to be searched indicating that the type of the path to be searched includes a direct path or a reflected path. Or, the type information of the path indicates that the type of the path includes a LOS path or other path. For example, the type of the path among the multiple paths measured by the first device includes the type of the path to be searched. The type information of the path is easier to identify, and the information can also indicate the transmission direction of the path, which can reduce the identification difficulty of the first device.

[0032] In a possible implementation, the information of the path to be searched also includes information for indicating at least one of the following: the order of the path to be searched when the path of at least one first signal is ordered according to the order of arrival time; or the order of the paths among the multiple paths when the path of at least one first signal is ordered according to the order of received power. Such information is easier to identify, thus reducing the identification difficulty of the first device.

[0033] In a possible implementation, the first device acquires second configuration information. The second configuration information indicates that the second signal is associated with the first path in a spatial relationship, and the second configuration information further indicates that the third signal is associated with the second path in a spatial relationship. The first device sends the second signal and the third signal according to the second configuration information.

[0034] In the case of solving the location information of the first device by the round-trip delay of the signal between the third device and the first device, the spatial relationship of the multiple reference signals sent by the first device can be associated with the multiple paths of at least one first signal received by the first device through the second configuration information, so that the multiple reference signals sent by the first device can be transmitted along the transmission direction of the path, thereby more accurately calculating the round-trip delay between the first device and the third device.

[0035] In the present application, the first path and the second path may not be the paths among the multiple paths indicated by the first information obtained by the first device, for example, they may be two paths specified by the network device for the first device, or the first path and the second path are not the paths corresponding to at least one first signal. In another possible implementation, the first path and the second path are the paths among the multiple paths indicated by the first information obtained by the first device, or the first path and the second path are the two paths corresponding to at least one first signal measured by the first device.

[0036] In a possible implementation, the first path and the second path are the same path corresponding to the first signal; or, the first path and the second path are two different paths corresponding to the first signals. In this way, the two paths may come from the same signal transmission direction or different signal transmission directions, thereby providing more possibilities for path selection.

[0037] In a possible implementation, the first device generates the second configuration information according to the measurement results of multiple paths of at least one first signal; or the first device receives the second configuration information. In this way, the flexibility of the solution can be improved.

[0038] In a possible implementation, the number of signals configured by the second configuration information is associated with the number of paths in the multiple paths. For example, the number of paths in the multiple paths obtained by the first device measuring at least one first signal is equal to (or greater than) the number of reference signals for positioning configured by the first device. In this way, each reference signal for positioning configured for the first device can be associated with the spatial relationship of one of the multiple paths, thereby improving the rationality of the solution.

[0039] In a second aspect, an embodiment of the present application provides a communication method, which can be applicable to a positioning management device. The positioning management device can be, for example, a positioning management device or a unit, module or chip (system) inside the positioning management device.

[0040] In this solution, the positioning management device receives first information, which is determined based on the measurement results of multiple paths of at least one first signal, and includes information indicating the transmission directions of the multiple paths. The positioning management device determines the location information of the device to be positioned based on the first information.

[0041] Since the first information can indicate the transmission directions of multiple paths, the first information can be used to construct a more accurate geometric relationship model between the multiple paths, and then the positioning management device can improve the accuracy of the position information when solving the position information of the device to be positioned based on the geometric relationship model.

[0042] The information used to indicate the transmission direction of the path in the present application may include information of the reflective surface used to indicate the path and / or information used to indicate the path. The description of the implementation scheme and beneficial effects of the first information can refer to the related description of the first aspect above, which will not be repeated here.

[0043] In a possible implementation manner, the positioning management device sends first configuration information.

[0044] The description of the relevant implementation methods and beneficial effects of the first configuration information can be found in the relevant description of the first aspect above, and will not be repeated here.

[0045] In a possible implementation, the positioning management device sends the second information based on the first information. The second information includes: information for indicating the transmission direction of multiple paths, and / or fourth information. The fourth information indicates that the second signal is associated with the spatial relationship of the first path, and the fourth information also indicates that the third signal is associated with the spatial relationship of the second path. In the embodiment of the present application, the information for indicating the transmission direction of the path in the second information may include information for indicating the reflective surface of the path and / or information for indicating the path. The relevant contents of the information for indicating the reflective surface of the path and the information for indicating the path can be found in the relevant description of the first aspect above, and will not be repeated here.

[0046] The second information is used to assist the second device in configuring the spatial relationship of the reference signal for positioning for the first device. Since the spatial relationship of the multiple reference signals sent by the first device can be associated with the multiple paths of at least one first signal received by the first device, the multiple reference signals sent by the first device can be transmitted along the transmission direction of the path, so that the round-trip delay between the first device and the third device can be calculated more accurately.

[0047] In a possible implementation, the positioning management device receives third information, the third information is obtained based on the measurement result of the second signal and the measurement result of the third signal, the second signal is associated with the spatial relationship of the first path, and the third signal is associated with the spatial relationship of the second path. The positioning management device determines the location information of the device to be positioned based on the first information and the third information.

[0048] Since the positioning management device can determine the location information of the device to be positioned (such as the first device) in combination with more information, the positioning accuracy can be further improved.

[0049] In a possible implementation, the third information includes at least one of the following: information indicating the arrival time of the second signal; information indicating the arrival angle of the second signal; information indicating the round trip delay corresponding to the second signal; information indicating the arrival time of the third signal; information indicating the arrival angle of the third signal; or information indicating the round trip delay corresponding to the third signal. Such information can assist the positioning management device in determining the location information of the first device.

[0050] In a possible implementation manner, the first path and the second path are the same path corresponding to the first signal; or, the first path and the second path are two different paths corresponding to the first signals.

[0051] In a possible implementation manner, the number of signals configured by the second configuration information is associated with the number of paths in the multiple paths.

[0052] The related implementation modes of the first path and the second path, as well as the description and beneficial effects of the related implementation modes in the second aspect can be found in the related description of the first aspect above, and will not be repeated here.

[0053] In a third aspect, an embodiment of the present application provides a communication method, which can be applied to a second device. The second device can be, for example, a terminal or a unit, module, or chip (system) inside the terminal. The second device can also be a network device or a chip (system) inside the network.

[0054] In this solution, the second device receives the second information. The second information is obtained based on the measurement results of multiple paths of at least one first signal received by the first device. The second device sends second configuration information based on the second information, the second configuration information indicates that the second signal is associated with the spatial relationship of the first path, and the second configuration information also indicates that the third signal is associated with the spatial relationship of the second path; the second configuration information is used by the first device to send the second signal and the third signal.

[0055] The description of the implementation manner and beneficial effects of the information in the second information used to indicate the transmission directions of multiple paths can be found in the related description of the second aspect above, and will not be repeated here.

[0056] In a fourth aspect, an embodiment of the present application provides a communication method, which can be applied to a third device. The third device and the second device can be the same device or different devices. The third device can be, for example, a terminal or a unit, module or chip (system) inside the terminal. The third device can also be a network device or a chip (system) inside the network.

[0057] In this solution, the third device receives the second signal and the third signal, and determines third information according to the measurement result of the second signal and the measurement result of the third signal, and the third information is used for positioning.

[0058] In a possible implementation manner, the third device sends at least one first signal.

[0059] In one possible embodiment, the third information includes at least one of the following: information indicating the arrival time of the second signal; information indicating the arrival angle of the second signal; information indicating the round-trip delay corresponding to the second signal; information indicating the arrival time of the third signal; information indicating the arrival angle of the third signal; or information indicating the round-trip delay corresponding to the third signal.

[0060] In a possible implementation manner, the third device sends third information.

[0061] The description of the relevant implementation methods and beneficial effects in the fourth aspect can be found in the relevant description of the first aspect above, and will not be repeated here.

[0062] In a fifth aspect, a communication device is provided, which may be the aforementioned first device, second device, third device or positioning management device. The communication device may include a communication unit and a processing unit to perform any aspect of the above-mentioned first to fourth aspects, or to perform any possible implementation of the first to fourth aspects. The communication unit is used to perform functions related to sending and receiving. Optionally, the communication unit includes a receiving unit and a sending unit. In one design, the communication device is a communication chip, the processing unit may be one or more processors or processor cores, and the communication unit may be an input and output circuit or port of the communication chip.

[0063] In another design, the communication unit may be a transmitter and a receiver, or the communication unit may be a transmitter and a receiver.

[0064] Optionally, the communication device also includes various modules that can be used to execute any aspect of the first to fourth aspects above, or execute any possible implementation of the first to fourth aspects.

[0065] In a sixth aspect, a communication device is provided, which may be the aforementioned first device, second device, third device or positioning management device. The communication device may include a processor and a memory to execute any one of the above-mentioned first to fourth aspects, or to execute any possible implementation of the first to fourth aspects. Optionally, a transceiver is also included, the memory is used to store a computer program or instruction, and the processor is used to call and run the computer program or instruction from the memory, and when the processor executes the computer program or instruction in the memory, the communication device executes any one of the above-mentioned first to fourth aspects, or to execute any possible implementation of the first to fourth aspects.

[0066] Optionally, there are one or more processors and one or more memories.

[0067] Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

[0068] Optionally, the transceiver may include a transmitter (transmitter) and a receiver (receiver).

[0069] In a seventh aspect, a communication device is provided, which may be the aforementioned first device, second device, third device or positioning management device. The communication device may include a processor to perform any aspect of the aforementioned first to fourth aspects, or to perform any possible implementation of the first to fourth aspects. The processor is coupled to a memory. Optionally, the communication device also includes a memory. Optionally, the communication device also includes a communication interface, and the processor is coupled to the communication interface.

[0070] In one implementation, when the communication device is the first device, the second device, the third device or the positioning management device, the communication interface may be a transceiver, or an input / output interface. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0071] In another implementation, when the communication device is a chip or a chip system, the communication interface may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system, etc. The processor may also be embodied as a processing circuit or a logic circuit.

[0072] In an eighth aspect, a system is provided, the system comprising the second device mentioned above.

[0073] In one possible implementation, the system may further include one or more first devices. In another possible implementation, the system may further include one or more third devices. In another possible implementation, the system may further include a positioning management device.

[0074] In the ninth aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instruction), which, when executed, enables a computer to execute any one of the first to fourth aspects described above, or any possible implementation of the first to fourth aspects.

[0075] In the tenth aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer program is run on a computer, the computer executes any one of the first to fourth aspects above, or executes any possible implementation of the first to fourth aspects.

[0076] In the eleventh aspect, a chip system is provided, which may include a processor. The processor is coupled to a memory and may be used to perform any of the first to fourth aspects described above, or to perform any possible implementation of the first to fourth aspects. Optionally, the chip system also includes a memory. The memory is used to store a computer program (also referred to as code, or instruction). The processor is used to call and run a computer program from the memory, so that a device equipped with the chip system performs any of the first to fourth aspects described above, or performs any possible implementation of the first to fourth aspects.

[0077] In a twelfth aspect, a processing device is provided, comprising: an interface circuit and a processing circuit. The interface circuit may include an input circuit and an output circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that any aspect of the first to fourth aspects above, or any possible implementation of the first to fourth aspects is implemented.

[0078] In the specific implementation process, the above-mentioned processing device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0079] In one implementation, when the communication device is the first device, the second device, the third device, or the positioning management device, the interface circuit may be a radio frequency processing chip in the first device, the second device, the third device, or the positioning management device, and the processing circuit may be a baseband processing chip in the first device, the second device, the third device, or the positioning management device.

[0080] In another implementation, the communication device may be a part of the first device, the second device, the third device or the positioning management device, such as an integrated circuit product such as a system chip or a communication chip. The interface circuit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processing circuit may be a logic circuit on the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0082] Figure 2A A schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0083] Figure 2B A schematic diagram of another communication system architecture applicable to the embodiments of the present application;

[0084] Figure 2C A schematic diagram of another communication system architecture applicable to the embodiments of the present application;

[0085] Figure 2D A schematic diagram of another communication system architecture applicable to the embodiments of the present application;

[0086] Figure 2E A schematic diagram of another communication system architecture applicable to the embodiments of the present application;

[0087] Figure 3 A schematic diagram of the principle of determining the angle of arrival information provided in an embodiment of the present application;

[0088] Figure 4 A schematic diagram of the principle of positioning using the RTT positioning technology and the arrival angle positioning technology provided in the embodiment of the present application;

[0089] Figure 5 A flowchart of a positioning method provided in an embodiment of the present application;

[0090] Figure 6 A schematic diagram of the principle of determining the location information of the first device provided in an embodiment of the present application;

[0091] Figure 7 A flowchart of a positioning method provided in an embodiment of the present application;

[0092] Figure 8 A flowchart of a positioning method provided in an embodiment of the present application;

[0093] Fig. 9 A flowchart of a positioning method provided in an embodiment of the present application;

[0094] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0095] Fig.11 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0096] Figure 1 The schematic diagram of the architecture of a communication system 1000 applicable to the embodiment of the present application is exemplarily shown. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may further include at least one terminal (such as Figure 1120a-120j in the figure). The terminal is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminals and wireless access network devices can be connected to each other by wired or wireless means. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.

[0097] The network devices involved in the embodiments of the present application include, for example, radio access network (RAN) devices. The radio access network devices may be base stations, evolved NodeBs (eNodeBs), transmission reception points (TRPs), transmission nodes (TPs), next generation NodeBs (gNBs) in fifth generation (5G) mobile communication systems, next generation NodeBs in sixth generation (6G) mobile communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems, etc.; they may also be modules or units that perform some functions of a base station, for example, they may be centralized units (CUs) or distributed units (DUs). The CU here completes the functions of the radio resource control protocol and packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and medium access control (MAC) layer of the base station, and can also complete the functions of part or all of the physical layer. For the specific description of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP).

[0098] The wireless access network device can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, the following description takes a base station as an example of a wireless access network device.

[0099] The terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, a sensor, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0100] The above-mentioned terminal can establish a connection with the operator network through the interface (such as N1, etc.) provided by the operator network, and use the data and / or voice services provided by the operator network. The terminal can also access the domain name system (DNS) through the operator network, use the operator services deployed on the DNS, and / or services provided by a third party. Among them, the above-mentioned third party can be a service provider other than the operator network and the terminal, and can provide other data and / or voice services to the terminal. Among them, the specific form of expression of the above-mentioned third party can be determined according to the actual application scenario, and is not limited here.

[0101] The terminal may also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, a road side unit (RSU), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0102] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons, and artificial satellites in the air. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0103] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0104] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0105] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0106] In this application, the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the service cell of the terminal. When the terminal communicates with the service cell, it will also be interfered by signals from neighboring cells.

[0107] The core network involved in the embodiments of the present application may include network equipment that processes and forwards user signaling and data. For example, it includes access and mobility management function (AMF), session management function (SMF), user plane gateway, positioning management equipment and other core network equipment. Among them, the user plane gateway can be a server with functions such as mobility management, routing, and forwarding of user plane data, which is generally located on the network side, such as a serving gateway (SGW) or a packet data network gateway (PGW) or a user plane network element function entity (UPF). AMF and SMF are equivalent to the mobility management entity (MME) in the long term evolution (LTE) system. AMF is mainly responsible for access, and SMF is mainly responsible for session management. Of course, other network elements can also be included in the core network, which are not listed here one by one.

[0108] The positioning management device has a positioning function. The positioning management device involved in the embodiments of the present application may include a positioning management function (LMF) or a positioning management component (LMC), or may be a local location management function (LLMF) located in a network device, or a positioning server, which is not limited in the embodiments of the present application. For the convenience of description, the following embodiments are all introduced by taking the positioning management device as LMF as an example.

[0109] based on Figure 1 The content shown, Figure 2A The following is a schematic diagram of a communication system architecture applicable to the embodiments of the present application, and the communication system is illustrated by taking the positioning architecture in LTE and NR Rel-16 as an example. Figure 2A As shown, the network elements / modules involved mainly include the next generation radio access network (NGRAN), the terminal and the core network.

[0110] Among them, the core network includes location management function (LMF), access and mobility management function (AMF), service location protocol (SLP) and evolved serving mobile location center (E-SMLC). The location server, namely location management function (LMF), is connected to AMF, and LMF and AMF are connected through NLs ​​interface. UE communicates with serving base station through Uu link; Ng-eNB is LTE base station, gNB is NR base station, and base stations communicate through Xn interface; base station and AMF communicate through NG-C interface, and AMF (Access and Mobility Management Function) is equivalent to the router for communication between gNB and LMF; LMF realizes UE location estimation, and AMF and LMF communicate through NLs ​​interface. LMF is responsible for supporting different types of location services for terminals, including positioning of terminals and delivering auxiliary data to terminals. LMF can calculate the location of terminals based on the measurement results of other network elements. AMF can receive location service requests related to the terminal from the 5th generation core network location services (5GC LCS) entity, or AMF itself can start some location services on behalf of a specific terminal and forward the location service request to LMF. After obtaining the location information returned by the terminal, the relevant location information is returned to the 5GC LCS entity.

[0111] NG RAN may include next generation node B (gNB), next generation evolved node B (ng-eNB), etc. gNB and ng-eNB are connected through the Xn interface, and LMF is connected to ng-eNB / gNB through the NG-C interface.

[0112] One or more network devices on the NG RAN side configure resources for sending reference signals and send reference signals to the terminal. The terminal measures downlink signals such as the reference signal and feeds back the measurement results to the LMF to support positioning. It should be understood that the reference signal is used for positioning and can also be called a positioning reference signal. This article mainly focuses on downlink positioning, so the positioning reference signal can be PRS, cell common reference signal (CRS), channel state information (CSI)-RS, etc. This article takes the positioning reference signal as an example of PRS. Other reference signal methods can refer to this example and will not be repeated here. In one possible implementation method, the PRS resources can be configured at the cell level, that is, PRS resources are configured for each cell separately. After the terminal re-establishes the radio resource control (RRC) connection with the target cell, the base station of the target cell can configure the PRS resources for the target cell, and the terminal obtains the PRS resources configured for the target cell to receive and measure the PRS on the PRS resources.

[0113] The communication method provided in the embodiment of the present application can be applied to various communication systems, for example: LTE system, fifth generation (5th generation, 5G) system, such as NR, and next generation communication system, such as 6G system, etc. Of course, the technical solution of the embodiment of the present application can also be applied to other communication systems, as long as the communication system has a positioning demand for the terminal. In addition, the communication system can also be applied to future-oriented communication technologies. The system described in the embodiment of the present application is to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. It is known to those skilled in the art that with the evolution of the network architecture, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0114] Figure 2BThe network architecture of another communication system applicable to the embodiment of the present application is shown, and the communication system includes a core network, NG-RAN and a terminal. The core network includes LMF, AMF, secure user plane location (SUPL) location platform (SLP) and enhanced serving mobile location center (E-SMLC) and other network elements / modules, and NG RAN includes gNB, ng-eNB and other network elements / modules. The specific functions of LMF, AMF, SLP, E-SMLC, gNB and ng-eNB and other network elements / modules, and the connection relationship between each network element / module can be found in the above text. Figure 2A The introduction of the relevant parts will not be repeated here.

[0115] and Figure 2A The difference is, Figure 2B In the network architecture shown, LMC is added to NG-RAN. The specific deployment method of LMC is to set it inside the base station, such as in gNB or ng-ENB. In this network architecture, LMC is a function inside the base station, so there is no need to introduce a new interface. LMC can assume part of the functions of LMF. Under this architecture, gNB can not report the measurement results of the signal used for positioning to the LMF of the core network, thereby saving signaling overhead and reducing positioning delay.

[0116] Figure 2C FIG. 4 shows another network architecture of a communication system to which the embodiment of the present application is applicable. Figure 2C As shown in Figure 1, the communication system also includes a core network, NG-RAN and terminals. Figure 2B The difference is, Figure 2C The LMC in the network architecture shown is an independent logical node in NG-RAN and is connected to the base station through a new interface, e.g. Figure 2C In the NB-CU, LMC is connected to gNB-CU through interface Itf.

[0117] Figure 2D FIG. 4 shows another network architecture of a communication system to which the embodiment of the present application is applicable. Figure 2D As shown in Figure 1, the communication system also includes the core network, NG-RAN and terminals. LMC is an independent logical node in NG-RAN. Figure 2C The difference is that LMC can Figure 2D Connect to multiple base stations simultaneously via new interfaces. Figure 2D Taking the example that the LMC is connected to two base stations at the same time, in specific implementation, the LMC can also be connected to more base stations.

[0118] It should be understood that the above Figure 2A , Figure 2B , Figure 2C and Figure 2D These are several exemplary descriptions of communication systems to which the embodiments of the present application are applicable, and do not specifically limit the types, quantities, connection methods, etc. of network elements included in the communication systems to which the present application is applicable. Figure 2A , Figure 2B , Figure 2C and Figure 2D The network elements / modules indicated by the dotted lines are not indispensable but optional, for example, E-SMLC or SLP are not indispensable; or, the network elements / modules indicated by the dotted lines are in another form of existence, for example, gNB or ng-eNB are also called transmission reception point (TRP) in some embodiments, and the terminal is called a SUPL enabled terminal (SET) in some embodiments, where SUPL is the abbreviation of secure user plane location (SUPL).

[0119] Figure 2E A schematic diagram of a network architecture of another communication system provided in an embodiment of the present application is exemplarily shown. Figure 2E Therefore, the communication system includes a first device, a second device and a third device. Optionally, the communication system may further include a positioning management device. In the embodiment of the present application, the second device may configure information for the first device, for example, configuration information of a signal for positioning may be configured for the first device. For example, the signal sent by the first device for positioning is SRS, and the second device may be used to configure the configuration information of SRS for the first device. The first device may transmit signals for positioning to and from the third device. The third device may determine the location of the first device based on the measurement result, and the third device may also report the measurement result to the positioning management device. In the embodiment of the present application, information may also be transmitted between the first device and the positioning management device, for example, the first device may also transmit the measurement result to the positioning management device.

[0120] In the embodiment of the present application, the first device and / or the third device may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D Network equipment, chips (systems) inside network equipment, terminals or chips (systems) inside terminals.

[0121] The first device may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2Cor Figure 2D In the case of the terminal or the chip (system) inside the terminal shown in , the third device may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The first device may be the terminal shown in the figure, the chip (system) inside the terminal, the network device or the chip (system) inside the network device. Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D In the case of the network device or the chip (system) inside the network shown in , the third device can be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The terminal shown in, the chip (system) inside the terminal, the network device or the chip (system) inside the network device.

[0122] In the embodiment of the present application, the second device and the third device may be the same device, or two different devices. The second device may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The second device may be a network device, a chip (system) inside a network device, a terminal or a chip (system) inside a terminal. For example, the second device is a terminal or a chip (system) inside a terminal, and the second device may also have the function of configuring relevant parameters for the first terminal, such as the second device is a road side unit (RSU). For example, the second device is a serving base station, the third device is a neighboring base station of the serving base station, and the first device is a terminal.

[0123] The positioning management device in the embodiment of the present application may be the aforementioned Figure 1 , Figure 2A , Figure 2B , Figure 2C or Figure 2D The location management device involved or the chip (system) in the location management device. The location management device may include one or more of LMF, LMC or LLMF. The location management device in the embodiment of the present application and the second device (and / or the third device) may be located in the same device, and the location management device may also be located in the same device as the first device.

[0124] The following is an introduction to the nouns and terms involved in the embodiments of the present application.

[0125] (1) Positioning reference signal.

[0126] The first signal, the second signal, and the third signal involved in the embodiments of the present application can be understood as signals that can be used for positioning. The first signal, the second signal, and the third signal in the embodiments of the present application can also be referred to as positioning signals. The first signal refers to a signal sent by a third device, and the second signal and the third signal are signals sent by the first device.

[0127] In the embodiment of the present application, one or more of the first signal, the second signal and the third signal may be a PRS, an SRS, a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sidelink positioning reference signal (SL-PRS) and a synchronization signal-physical sidelink broadcast channel block (SSB). One or more of the block.

[0128] The solution provided in the embodiment of the present application is applicable to transmitting a signal for positioning between two devices, such as transmitting a signal for positioning between a first device and a third device. The two devices may both be terminals or chips (systems) inside the terminals. In this case, it can also be understood that the solution provided in the embodiment of the present application is also applicable to a sidelink.

[0129] The sidelink (SL) in the embodiment of the present application may also be referred to as a sidelink, a sidelink, a direct link, a side link or an auxiliary link, etc. In the embodiment of the present application, the above terms all refer to links established between devices of the same type, and their meanings are the same. The so-called devices of the same type may be links between terminals, etc. For links between terminals, there are D2D links defined in 3GPP versions (Rel)-12 / 13, and there are also V2X links defined by 3GPP for vehicle networking, such as vehicle-to-vehicle, vehicle-to-mobile phone, or vehicle-to-any entity, including Rel-14 / 15. It also includes V2X links based on NR systems in Rel-16 and subsequent versions that are currently being studied by 3GPP.

[0130] (2)Spatial relationship.

[0131] The English word for spatial relation in the embodiments of the present application may be spatial relation. The spatial relation of signals in the embodiments of the present application (such as the spatial relation between the second signal and the first path involved later, or the spatial relation between the third signal and the second path) may refer to the relationship between the two signals when the two signals propagate in space. The spatial relation in the embodiments of the present application may also be replaced by other names, such as beam, beam direction, transmission direction, transmission beam direction, receiving direction, reception beam direction, etc. The first path and the second path may be two paths of the same signal, or they may be the paths of two signals.

[0132] The spatial relationship association between two signals in the embodiment of the present application (such as the spatial relationship association between the second signal and the first path involved later, or the spatial relationship association between the third signal and the second path) may refer to the directions of the two signals being consistent or close when the two signals propagate in space. The spatial relationship association between two signals in the embodiment of the present application may also refer to the spatial association between the transmit beam or receive beam of one signal and the transmit beam or receive beam of another signal, such as the transmit beam or receive beam of one signal and the transmit beam or receive beam of another signal have the same or close beam direction.

[0133] (3) Angle of arrival information.

[0134] (3.1) Method for calculating the angle of arrival.

[0135] The following is an example in which the third device measures the signal from the first device to obtain the arrival angle information. The solution in which the first device obtains the arrival angle information by measuring the signal from the third device is similar and will not be described in detail.

[0136] The third device may estimate the angle of arrival by utilizing the phase difference between multiple antenna array elements. Figure 3 The schematic diagram of the principle of determining the arrival angle information provided in the embodiment of the present application is exemplarily shown, taking the third device measuring the signal sent by the first device to determine the arrival angle as an example, as shown in FIG. Figure 3 As shown, the third device may include multiple antenna array elements (for example, two or more antenna array elements, which may also be referred to as array antennas). It is generally assumed that the first device is far enough from the third device that the propagation paths of the signal emitted by the first device to each antenna array element of the third device can be considered parallel. Thus, in a possible implementation, the angle of arrival can be calculated using the following formulas (1) and (2):

[0137]

[0138]

[0139] In the above formulas (1) and (2), ψ is the phase difference between antenna elements, θ is the arrival angle of the signal sent by the first device, d is the distance between antenna elements, c is the speed of light, and τ is the path difference between the signal sent by the first device and the antenna elements; -jω Can be a preset constant.

[0140] (3.2) Angle of arrival information.

[0141] The arrival angle information involved in the embodiment of the present application includes at least one of the following three items: azimuth angle of arrival (AOA) and / or zenith angle of arrival (ZOA).

[0142] In the embodiment of the present application, the arrival angle information may also include coordinate system information, which may be a global coordinate system (Global Coordinate System, GCS) or a local coordinate system (Local Coordinate System, LCS). Among them, the global coordinate system is the coordinate system of the three-dimensional space where the object is located. The local coordinate system, that is, the coordinate system takes the center of the object as the coordinate origin, and the rotation or translation of the object is performed around the local coordinate system. At this time, when the object model is rotated or translated, the local coordinate system also performs the corresponding rotation or translation operation.

[0143] When the angular coordinate system is GCS, the azimuth arrival angle can be the angle between the incident angle direction and the true north direction or the angle between the projection of the incident angle direction on the horizontal plane and the true north direction, and ZOA can be the angle between the incident angle direction and the zenith direction. When the angular coordinate system is LCS, the azimuth arrival angle can be the angle between the projection of the incident angle direction on the xy plane of the rectangular coordinate system and the true north direction, and ZOA can be the angle between the incident angle direction and the z-axis.

[0144] In the above possible implementation, when the arrival angle information does not include an angle coordinate system (for example, when the arrival angle information only includes the azimuth arrival angle, or only includes ZOA), in this implementation, a default coordinate system may be used, for example, a default coordinate system may be defined for the azimuth arrival angle and the ZOA, respectively. The default coordinate system defined for the azimuth arrival angle may be a coordinate system under the GCS, or may be a coordinate system under the LCS. The default coordinate system defined for the ZOA may be a coordinate system under the GCS, or may be a coordinate system under the LCS.

[0145] For example, the azimuth arrival angle in the arrival angle information may refer to the projection of the signal transmission path between the third device and the first device on the horizontal plane, and the angle between the third device end and the true north direction. The ZOA included in the arrival angle information may specifically refer to the projection of the signal transmission path between the third device and the first device on the horizontal plane, and the angle between the third device end and the zenith direction.

[0146] (3.3)RTT.

[0147] RTT can be understood as the round-trip time of a signal between two devices.

[0148] For example, the third device sends a signal a1 to the first device (the signal a1 is, for example, a positioning reference signal (PRS), the third device uses the local clock of the third device to record the transmission time t0 of the signal a1, and the first device uses the local clock of the first device to measure the arrival time t1 of the signal a1.

[0149] After receiving the signal a1, the first device sends a signal a2 to the third device (the signal a2 is, for example, a sounding reference signal (SRS). The first device records the transmission time t2 of the signal a2 using the local clock of the first device, and the third device measures the arrival time t3 of the signal a2 using the local clock of the third device. The RTT of the signal transmitted between the first device and the third device is: [(t3-t0)-(t2-t1)].

[0150] A possible positioning solution is introduced below, which uses RTT positioning technology and arrival angle positioning technology for positioning. Figure 4 The schematic diagram of the principle of positioning by using the RTT positioning technology and the arrival angle positioning technology provided in the embodiment of the present application is exemplified, such as Figure 4 As shown, the RTT is obtained by transmitting signals between the third device and the first device, and then the value of the distance R between the third device and the first device can be determined to be (RTT×c / 2), where c is the speed of light, × represents multiplication, and / represents division. It can be determined that the first device is located on a circle with the third device as the center and R as the radius. On the other hand, the third device measures the signal from the first device to obtain the arrival angle information. Using the arrival angle information, a ray can be determined, which starts from the third device and the angle between the ray and the third device is the arrival angle θ. The intersection of the ray and the above-mentioned circle with R as the radius is the position of the first device.

[0151] This positioning solution can achieve single-station positioning, that is, one third device (that is, no need for multiple third devices) can achieve positioning of the first device. The solution provided in the embodiment of the present application can also be applied to the scenario where the first device is positioned by multiple third devices, in which the multiple third devices can all or partly apply the solution on the third device side provided in the embodiment of the present application.

[0152] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 2E , Figure 3 and Figure 4 The embodiments shown and the other contents described above, Figure 5 The following is a flow chart of a communication method provided by an embodiment of the present application. Figure 5 The interaction between the first device, the second device, the third device and the positioning management device is introduced. Figure 5 The first device, the second device, the third device and the positioning management device may be the aforementioned Figure 4 For the first device, the second device, the third device and the positioning management device, the relevant introduction can be found in the above content and will not be repeated here.

[0153] like Figure 5 As shown, the method includes:

[0154] Step 501: A third device sends at least one first signal.

[0155] Correspondingly, the first device receives at least one first signal.

[0156] The first signal is a signal that can be used for positioning, such as a PRS. For related content, please refer to the above description and will not be repeated here.

[0157] Step 502: The first device determines first information according to measurement results of multiple paths of at least one first signal.

[0158] The first information is determined based on measurement results of multiple paths of at least one first signal.

[0159] The first information may include the following information A1 and / or information A2: Information A1 is information for indicating the transmission directions of the multiple paths; Information A2 is the measurement results of the multiple paths.

[0160] Information A1 is information used to indicate the transmission directions of multiple paths.

[0161] In the embodiments of the present application, the transmission direction of the diameter can be understood to be replaced by the direction of the diameter or the orientation of the diameter. The transmission direction of the diameter can be written as the direction of the diameter in English.

[0162] In a possible implementation manner, the information used to indicate the transmission directions of the multiple paths may include information used to indicate the reflective surface of the path and / or information used to indicate the path.

[0163] The information of the reflecting surface for indicating the path may include information A1.1. The information for indicating the path may include one or more of information A1.2, information A1.3, information A1.4 or information A1.5. Information A1.2 is the angle information of the path among the multiple paths. Information A1.3 is the type information of the path among the multiple paths. Information A1.4 is the order of the paths among the multiple paths when the paths of at least one first signal are ordered according to the order of arrival time. Information A1.5 is the order of the paths among the multiple paths when the paths of at least one first signal are ordered according to the order of received power strength.

[0164] One or more of the information A1.1, information A1.2, information A1.3, information A1.4 or information A1.5 can indicate the transmission direction of a path among the multiple paths measured by the first device. Therefore, this information is classified as information used to indicate the transmission direction of multiple paths in this application. In actual applications, this information can also be used for other purposes. For example, information A1.4 can be used to indicate the arrival time of the path, and information A1.5 is used to indicate the strength of the received power of the path. This information can assist the positioning management device in evaluating the reliability of the location information. For example, if the received power of the path is strong, the positioning management device can deem that the reliability of the location information determined based on the relevant measurement results of the path is strong.

[0165] Information A1.1, information of the reflecting surface used to indicate the path.

[0166] The reflection surface information of a path among multiple paths can be used to indicate the transmission direction of the path. The reflection surface information of a path among multiple paths can assist the positioning management device in determining the algorithm corresponding to the reflection path, so as to more accurately solve the position information of the device to be positioned. For example, one of the multiple paths measured by the first device is a direct path, and another path is a reflection path, and the reflection surface of the reflection path is the ground, that is, the reflection path is the path reflected by the ground. This information can assist the positioning management device in establishing a geometric relationship model between the direct path and the reflection path, and then combine the measurement results of these paths to more accurately calculate the position information of the device to be positioned.

[0167] The information A1.1 may include one or more of the following information A1.1.1, information A1.1.2, information A1.1.3, information A1.1.4, information A1.1.5, information A1.1.6 or information A1.1.7.

[0168] Information A1.1.1: Information indicating the type of the reflective surface of the path.

[0169] The types of reflective surfaces of the diameter may include walls, mirrors, floors or reflective panels.

[0170] In an embodiment of the present application, the first device can also distinguish the type of reflection path by analyzing the path characteristics of the relevant spectrum when measuring the first signal. For example, when the path energy is more concentrated, it can be considered that the reflectivity is high, and then it is inferred that the reflecting surface may be a mirror; when the path energy is more dispersed, it is considered that the reflection conditions are not good, and then it is inferred that the reflecting surface may be the ground or a wall.

[0171] The information used to indicate the type of the reflective surface of the path may implicitly indicate the direction of the reflective surface or indicate the transmission direction of the path. For example, when the type of the reflective surface of the path is the ground, the information used to indicate the type of the reflective surface of the path may also implicitly indicate that the reflective surface is below the first device. For another example, when the type of the reflective surface of the path is a wall, the information used to indicate the type of the reflective surface of the path may also implicitly indicate that the reflective surface is in the horizontal direction of the first device (or defined by words indicating directions such as east, south, west, and north). For another example, when the type of the reflective surface of the path is a reflective plate, the information used to indicate the type of the reflective surface of the path may also implicitly indicate that the direction of the reflective surface may be more flexible. In this case, the positioning management device may further determine the direction of the reflective surface and / or the transmission direction of the path in combination with other information.

[0172] Information A1.1.2 is used to indicate the material of the reflective surface of the path.

[0173] The materials of the reflective surface of the diameter can include cement, wood, metal or glass.

[0174] The information of the material of the reflecting surface indicates the nature or surface condition of the reflecting surface, which is related to the reflected energy. For example, the correlation between the material and the shape of the energy spectrum can be pre-configured, and the first device performs multipath identification based on the measured spectrum, and then determines the corresponding material of the reflecting surface based on the identified energy spectrum shape. Spectral shape matching is conducive to ensuring the accuracy of reflection path judgment. The energy spectrum is generated by the first device after processing the received first signal. The reflected energy of metal or glass is concentrated, while the reflected energy of cement or wood is more divergent. The half-peak width of the spectrum corresponding to cement or wood will be larger than the spectrum corresponding to metal or glass.

[0175] The material of the reflective surface can also implicitly indicate the direction of the reflective surface and / or the transmission direction of the path. For example, if the material of the reflective surface is glass, the positioning management device can infer that the reflective surface is a wall. For another example, if the material of the reflective surface is cement, the positioning management device can infer that the reflective surface is the ground. Then, the orientation of the reflective surface and / or the transmission direction of the path are inferred based on the type of the reflective surface. For related content, please refer to the above-mentioned related description and will not be repeated here.

[0176] Information A1.1.3, information indicating the reflectivity of the reflecting surface of the path.

[0177] The reflectivity of a reflective surface indicates the percentage of the radiation energy reflected by the reflective surface to the total radiation energy. The reflectivity of a reflective surface is related to the properties of different reflective surfaces or the surface conditions of the reflective surface, and may also be related to the incident angle and the wavelength of the electromagnetic wave. The value range is generally [0,1].

[0178] For example, the correlation between reflectivity and energy spectrum shape can be preconfigured, and the first device performs multipath identification based on the measured spectrum, and then determines the reflectivity of the corresponding reflecting surface based on the identified energy spectrum shape. Spectral shape matching is conducive to ensuring the accuracy of reflection path judgment. The energy spectrum is generated by the first device after processing the received first signal, and can indicate the change in the energy received by the first signal at the receiving end over time. The higher the reflectivity, the more concentrated the energy indicated by the energy spectrum shape; the lower the reflectivity, the more divergent the energy indicated by the energy spectrum shape. The half-peak width of the spectrum corresponding to the latter will be larger than the spectrum corresponding to the former.

[0179] The reflectivity of the reflecting surface can also implicitly indicate the direction of the reflecting surface and / or the transmission direction of the path. For example, if the reflectivity of the reflecting surface is high, the positioning management device can infer that the reflecting surface is glass, and then infer that the reflecting surface is a wall. Then, according to the type of the reflecting surface, the orientation of the reflecting surface and / or the transmission direction of the path are inferred. For related content, please refer to the above-mentioned related description and will not be repeated here.

[0180] Information A1.1.4 is used to indicate the information of the reflected energy of the reflecting surface of the path.

[0181] The reflected energy of the reflecting surface may indicate the reflected energy of the reflecting surface, or indicate the ratio between the reflected energy of the reflecting surface and the strongest reflected energy among all paths measured by the first device, or indicate the ratio between the reflected energy of the reflecting surface and the received energy of all paths measured by the first device.

[0182] The reflected energy of the reflecting surface is related to the properties of different reflecting surfaces or the surface conditions of the reflecting surfaces, and may also be related to the incident angle and the wavelength of the electromagnetic wave.

[0183] The first device performs multipath identification based on the measured spectrum, and then determines the reflected energy of the corresponding reflecting surface based on the identified energy spectrum shape. Spectrum shape matching is conducive to ensuring the accuracy of reflection path judgment. The energy spectrum is generated by the first device after processing the received first signal. The higher the reflected energy, the more concentrated the energy indicated by the energy spectrum shape; the lower the reflected energy, the more dispersed the energy indicated by the energy spectrum shape. The half-peak width of the spectrum corresponding to the latter will be greater than the spectrum corresponding to the former.

[0184] The reflected energy of the reflecting surface can also implicitly indicate the direction of the reflecting surface and / or the transmission direction of the path. For example, if the reflected energy of the reflecting surface is high, the positioning management device can infer that the reflecting surface is glass, and then infer that the reflecting surface is a wall. Then, according to the type of the reflecting surface, the orientation of the reflecting surface and / or the transmission direction of the path are inferred. For related content, please refer to the above-mentioned related description and will not be repeated here.

[0185] Information A1.1.5, information indicating the surface characteristics of the reflecting surface of the path.

[0186] The surface characteristics of the reflective surface may indicate the roughness of the reflective surface.

[0187] For example, the relationship between the surface features of the reflecting surface and the shape of the energy spectrum can be preconfigured, and the first device performs multipath identification based on the measured spectrum, and then determines the corresponding surface features of the reflecting surface based on the identified energy spectrum shape. Spectral shape matching is conducive to ensuring the accuracy of reflection path judgment. The energy spectrum is generated by the first device after processing the received first signal. Under the same material, the smaller the surface roughness of the reflecting surface (that is, the smoother the surface), the more concentrated the energy indicated by the energy spectrum shape; the larger the surface roughness of the reflecting surface (that is, the rougher the surface), the more divergent the energy indicated by the energy spectrum shape. The half-peak width of the spectrum corresponding to the latter will be larger than the spectrum corresponding to the former.

[0188] The surface features of the reflective surface can also implicitly indicate the direction of the reflective surface and / or the transmission direction of the path. For example, if the surface features of the reflective surface indicate that the reflective surface is relatively smooth, the positioning management device can infer that the reflective surface is glass, and then infer that the reflective surface is a wall. Then, the orientation of the reflective surface and / or the transmission direction of the path are inferred based on the type of the reflective surface. For related content, please refer to the above-mentioned related description and will not be repeated here.

[0189] Information A1.1.6 is used to indicate the direction information of the reflecting surface of the path.

[0190] In a possible example, the direction information of the reflecting surface used to indicate the path may indicate the orientation of the reflecting surface, or indicate the direction of the normal vector of the reflecting surface, or indicate the direction of the reflecting surface relative to the first device.

[0191] The normal vector of a surface (such as a reflective surface) is a vector perpendicular to the surface, and the normal vector can be used to represent the direction and inclination of the surface. For a given surface, there can be countless vectors perpendicular to it, and they can all be called the normal vector of the surface.

[0192] For example, the first device may be equipped with some sensors, such as a gravity sensor, a magnetic field sensor, a gyroscope, or a camera. The first device may sense the magnitude of acceleration from multiple coordinate axes through the sensors, and then identify the posture and orientation of the first device. The posture and orientation of the first device may indicate the transmission direction of the path.

[0193] For example, when the first device needs to search for a reflection path, the antenna module of the first device may retrieve direction information from the sensor module, and different reflection paths may correspond to different beam forming of the antenna module.

[0194] For example, when the first device needs to search for a reflection path reflected by the ground, the antenna module of the first device will point the beam in the direction of the center of the earth. It can be understood that the orientation of the first device is toward the center of the earth, and the transmission direction of the path is the direction of the path reflected by the ground. The reflecting surface is the ground, and the direction of the reflecting surface is toward the sky. It can also be understood that the reflecting surface is directly below the first device (this information can be understood as information about the direction of the reflecting surface relative to the first device). The direction of the normal vector of the reflecting surface in this example is toward the center of the earth.

[0195] For example, when the first device needs to search for a reflection path reflected by a wall, the antenna module of the first device will point the beam in a direction parallel to the ground. It can be understood that the orientation of the first device is perpendicular to the center of the earth, and the transmission direction of the path is the direction of the path reflected by the wall. The reflecting surface is a wall, and the direction of the reflecting surface is parallel to the ground. It can also be understood that the reflecting surface is located to the east of the first device (east is a word indicating a direction, and can also be replaced by other words indicating a direction, such as west, south, north, southwest, etc.) (this information can be understood as information about the direction of the reflecting surface relative to the first device). In this example, the direction of the normal vector of the reflecting surface is perpendicular to the center of the earth.

[0196] In another possible example, the direction of the reflecting surface of the diameter may also include the angle information of the reflecting surface. The angle information of the reflecting surface may be represented by the angle between the normal vector of the reflecting surface and one or more reference axes (the reference axes may include three coordinate axes in the coordinate system, for example) in the coordinate system. The coordinate system may be GCS or LCS. Among them, the global coordinate system may be one with the first device as the coordinate origin. In another possible implementation, the angle of the reflecting surface may also include the angle between the projection of the normal vector of the reflecting surface on a certain reference plane and a certain reference direction. The reference axis and / or the reference direction may be selected by the first device itself, or may be the direction of a coordinate axis in a certain coordinate system, or may be a predefined reference direction.

[0197] For example, the first device searches at 45 degrees to the southeast and finds a reflection path (the reflection path is one of the multiple paths measured by the first device). The reflection surface of the reflection path is located to the southeast of the first device, and the direction of the reflection surface (or the normal vector of the reflection surface) is 45 degrees to the northwest.

[0198] For another example, when the first device needs to search for a path reflected by a wall or a reflective plate, the first device can obtain the angle range of the path to be searched (the angle range can be pre-configured in the first device or configured to the first device by other devices), and the first device points the antenna module within the angle range, which can also be understood as the antenna module of the first device searching within the angle range to obtain the reflected path.

[0199] For another example, when the first device needs to search for a path reflected by a wall or a reflective plate, the first device can obtain the angle or direction of the path to be searched (the angle or direction may be pre-configured in the first device or configured to the first device by other devices), and the first device points the antenna module toward the angle or direction, which can also be understood as the antenna module of the first device searching within the angle or direction (the direction may be, for example, a horizontal direction) to obtain the reflected path.

[0200] In a possible example, after the first device obtains the angle or direction, it can also determine the angle range of the path to be searched based on the angle or direction. For example, a direction (such as the horizontal direction or the north direction) is set as a reference, and the angle range of the path to be searched is a range determined by plus or minus 15 degrees of the reference (15 degrees is an example, and it can also be other values), that is, the reference is regarded as 0 degrees, and the angle range is from minus 15 degrees to plus 15 degrees. The angle range of plus or minus 15 degrees can be located on a plane composed of two coordinate axes (such as the x-axis and the y-axis, or the x-axis and the z-axis, etc.) in the geodetic coordinate system (or other coordinate systems), or on any plane under the geodetic coordinate system (or other coordinate systems). For example, the angle range of the path to be searched is a pitch angle range of 15 degrees, and the pitch angle refers to any line in the plane composed of the z-axis and the y-axis (or the x-axis) under the geodetic coordinates as a reference, and the angle range of plus or minus 15 degrees is maintained on the plane with the reference.

[0201] The direction information of the reflecting surface can indicate the transmission direction of the path, and then the positioning management device can establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the position information of the device to be positioned.

[0202] Information A1.1.7 is used to indicate the position information of the reflecting surface of the path.

[0203] The position information of the reflecting surface of the path can indicate the orientation of the reflecting surface, or indicate the orientation of the reflecting surface relative to the first device. For example, the position information of the reflecting surface of the path can indicate the coordinates of the reflecting surface, or the relative distance between the reflecting surface and the terminal. For example, the terminal can measure the channel strength and the direction corresponding to the path. Assuming that the terminal has obtained the general information of the environment in advance, the terminal can determine its own orientation and the corresponding position of the reflecting surface in the environment through the sensors installed by itself, and then determine the coordinates of the reflecting surface or the relative distance to the reflecting surface.

[0204] For example, the first device searches at 45 degrees in the southeast direction and finds a reflection path (the reflection path is a path among multiple paths measured by the first device), then the position information of the reflection surface of the reflection path indicates that the reflection surface is located in the southeast direction of the first device. For another example, the reflection surface is the ground, then the position information of the reflection surface indicates that the position of the reflection surface is located on the ground. For another example, the reflection surface is a wall, then the position information of the reflection surface indicates that the position of the reflection surface is located on the wall. The wall can be a surface perpendicular to the ground.

[0205] The position information of the reflecting surface can indicate the transmission direction of the path, and then the positioning management device can establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the position information of the device to be positioned.

[0206] Information A1.2, angle information of a path among multiple paths.

[0207] The angle information of the path may include the direction of the incoming wave of the path, the angle of arrival of the path and other information.

[0208] The angle information of the path may include an angle range, and the angle range may be a search range of the first device when searching for the path, or may be referred to as a search angle range of the first device.

[0209] For example, the first device faces southeast, the search range is 42 degrees to 48 degrees southeast of the first device, and the first device searches for a reflection path (the reflection path is a path among multiple paths measured by the first device), and the direction of the path is 45 degrees southeast of the first device. Then the angle information of the reflection path may include the angle range of the path: 42 degrees to 48 degrees southeast. The angle information of the reflection path may also include the angle of the path: 45 degrees southeast.

[0210] The angle information of the path can indicate the transmission direction of the path, and then the positioning management device can establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the position information of the device to be positioned.

[0211] Information A1.3: type information of a path among the multiple paths.

[0212] The type of path may include a first path or other paths. Other paths may also be replaced by additional paths. The other paths refer to paths other than the first path. The first path may be understood as the earliest path received by the first device among the paths corresponding to the first signals. For example, the first path may be a LOS path.

[0213] The type of path may also include a reflection path or a direct path. These first signals may propagate through a line of sight (LOS) path (i.e., the straight-line distance between the first device and the third device). Due to the presence of obstructions (such as trees, buildings, walls, etc.), the signals will be reflected, so these first signals may also propagate through a non-line of sight (NLOS) path. The NLOS path can be understood as a reflection path.

[0214] The type information of the path can implicitly indicate the transmission direction of the path. For example, when the type of the path is a direct path, the direction of the path is the straight line direction from the third device to the first device. The positioning management device can then establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the position information of the device to be positioned.

[0215] Information A1.4: order of paths among the plurality of paths when the paths of at least one first signal are ordered according to the order of arrival time.

[0216] For example, the first device measures the first signals, and all the paths obtained can be named in order of arrival time: first arrival path, second arrival path, third arrival path, etc. Information A1.4 may include information for indicating which arrival path a path is.

[0217] The type information of the path can implicitly indicate the transmission direction of the path. For example, when the first arrival path of the path, the positioning management device can infer that the path is a straight path, and the direction of the path is the straight line direction from the third device to the first device. Then the positioning management device can establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the location information of the device to be located.

[0218] Information A1.5, when the paths of at least one first signal are sorted in order of received power strength, the sorting of the paths among the multiple paths.

[0219] For example, the first device measures the first signals, and all the paths obtained can be named in order of receiving power strength: the first strongest path, the second strongest path, the third strongest path, etc. Information A1.5 can include information for indicating which strongest path a path is.

[0220] The type information of the path can implicitly indicate the transmission direction of the path. For example, when the first strongest path of the path, the positioning management device can infer that the path is a direct path, and the direction of the path is the straight line direction from the third device to the first device. Then the positioning management device can establish a geometric relationship model between multiple paths, and then combine the measurement results of these paths to more accurately calculate the location information of the device to be located.

[0221] Information A2, measurement results of multiple paths obtained by the first device.

[0222] The measurement results of the multiple paths may include some parameters used for positioning, and these parameters may correspond to the positioning technology.

[0223] For example, when the RTT positioning technology is used to locate the first device. The third device sends a first signal (the first signal is, for example, a PRS), and the first device receives the first signal. The first device sends a second signal (the second signal is, for example, divided into an SRS). The spatial relationship of the second signal can be associated with the spatial relationship of the first path of the first signal. The measurement results of multiple paths are used to determine the first RTT, and the first RTT is used to determine the location information of the first device. The first RTT can be obtained by the following formula: [(the time when the second signal arrives at the third device-the time when the third device sends the first signal)-(the time when the first path of the first signal arrives at the first device-the time when the first device sends the second signal)]. The measurement results of the multiple paths obtained by the first device may include information on the time when the first path of the first signal arrives at the first device (or the arrival time information of the first path), and / or, information on the time when the first device sends the second signal. Alternatively, the measurement results of the multiple paths obtained by the first device may include the value of the first RTT (or the information on the round-trip delay corresponding to the first path).

[0224] For another example, the measurement results of the multiple paths may also include parameters such as a phase difference and an arrival angle obtained by the first device measuring at least one first signal.

[0225] In addition to the above information A1 and information A2, the first information may also include other information, such as information indicating the number of paths in the multiple paths. Such information may assist the positioning management device in positioning.

[0226] In the embodiment of the present application, the first information is used for positioning. When the positioning management device and the first device belong to the same device, the first device may have a positioning function. In this case, the first information can assist the first device in positioning. For example, the first device determines the location information of the first device based on the first information. When the positioning management device and the first device do not belong to the same device, the first device can send the first information to the positioning management device so that the positioning management device can determine the location information of the first device with the help of the first information. For example Figure 5 The method flow may include the following steps 503 and 504.

[0227] Step 503: The first device sends the first information.

[0228] Correspondingly, the positioning management device receives the first information.

[0229] Step 504: The positioning management device determines the location information of the device to be positioned according to the first information.

[0230] After the positioning management device obtains the first information, it can determine the transmission directions of the multiple paths measured by the first device based on the first information, and then find the corresponding algorithm based on the correlation between the transmission directions of the multiple paths and the preconfigured algorithm. The algorithm can be understood as a geometric model relationship constructed based on the transmission directions of the multiple paths. The positioning management device can more accurately determine the location information of the device to be located (such as the first device) based on the found algorithm. The solution provided in the embodiment of the present application can also be used to solve the location information of a third device (for example, the third device is a terminal). The embodiment of the present application takes solving the location information of the first device as an example for introduction.

[0231] Figure 6 The schematic diagram of the principle of determining the location information of the first device provided in the embodiment of the present application is exemplarily shown as follows: Figure 6 As shown, the third device sends at least one first signal, and the first device measures at least one first signal to obtain information about the first path and the second path. In the embodiment of the present application, the first path and the second path may not be the path of the first signal, but may also be the path of the first signal. In this example, the first path and the second path are taken as the path of the first signal. The second device sends the second signal and the third signal, and the spatial relationship of the second signal is associated with the first path of the first signal, and the spatial relationship of the third signal is associated with the second path of the first signal. The first path is a direct path, and the second path is a reflected path. The second path can construct a reflected path through the ground, wall or any reflective plate. Figure 6 The second path is a reflection path reflected by the ground as an example.

[0232] Figure 6 (a) shows a schematic diagram of two diameters of the first device in a three-dimensional coordinate system. Figure 6 (b) shows the geometric relationship diagram of the plane constructed by the two paths. Figure 6 (a) and Figure 6 As shown in (b), the height of the first device from the ground is marked as h, the length of the projection of the second device and the third device on the horizontal plane (the plane formed by the x-axis and the y-axis) is marked as d, and the arrival angle of the second signal includes the horizontal arrival angle and the vertical arrival angle. The horizontal arrival angle is marked as The vertical angle of arrival is denoted by θ. Figure 6 (a) and Figure 6 The geometric relationship in (b) can be obtained as follows:

[0233]

[0234] In formula (3), p is the product of the difference between the second RTT and the first RTT and the speed of light. The values ​​of d and h can be obtained by the above formula (3). The coordinate information of the first device can be further obtained. The coordinate information of the first device can be determined by the following formula (4):

[0235]

[0236] Combining the above formula (3), it can be seen that The value of is equal to the distance of the second path transmission path, and the value of The value of is equal to the distance of the transmission path of the first path. Since p is the product of the difference between the second RTT and the first RTT and the speed of light, It can be regarded as the difference between the distance of the transmission path of the second path calculated based on the two RTTs and the speed of light and the distance of the transmission path of the first path; the first RTT can be obtained by the following formula: [(the time when the second signal arrives at the third device-the time when the third device sends the first signal)-(the time when the first path of the first signal arrives at the first device-the time when the first device sends the second signal)]; the second RTT can be obtained by the following formula: [(the time when the third signal arrives at the third device-the time when the third device sends the first signal)-(the time when the second path of the first signal arrives at the first device-the time when the first device sends the third signal)].

[0237] The reflection surface (or transmission direction) of the path measured by the first device is related to the geometric relationship between the measurement results, or the reflection surfaces (or transmission directions) of multiple paths are related to the formula (or algorithm) constructed between the measurement results for solving the position information of the first device. If the positioning management device solves the position information based on only a set of fixed algorithms, it may cause the obtained position information to be inaccurate or even wrong.

[0238] In the solution provided in the present application, the positioning management device can determine a more accurate geometric relationship (or a more accurate formula or algorithm) between the various measurement results based on the first information, and then obtain more accurate location information of the first device.

[0239] Furthermore, in the process of solving formula (3), a difference operation is performed between the first RTT and the second RTT. Since the first RTT may be affected by the channel delay and the second RTT is also affected by the channel delay, the difference operation between the first RTT and the second RTT can reduce the influence of the channel delay, thereby improving the positioning accuracy.

[0240] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D, Figure 2E , Figure 3 , Figure 4 , Figure 5 and Figure 6 The embodiments shown and the other contents described above, Figure 7 A flow chart of a communication method provided in an embodiment of the present application is exemplified. Figure 7 Can be regarded as Figure 5 An extended embodiment of the embodiment, Figure 7 The first device, the second device, the third device and the positioning management device may be the aforementioned Figure 4 For the first device, the second device, the third device and the positioning management device, the relevant introduction can be found in the above content and will not be repeated here.

[0241] like Figure 7 As shown, the method includes:

[0242] Step 701: The positioning management device sends first configuration information.

[0243] Correspondingly, the first device receives the first configuration information.

[0244] In a possible example, the first configuration information may be carried in long term evolution positioning protocol (LPP) positioning request information.

[0245] The first configuration information includes information about the path to be searched. The information about the path to be searched can indicate the direction of the search, and then the first device can search according to the search direction configured by the first configuration information. The information about the path to be searched indicates that the search direction is toward the center of the earth, so the first device can point its antenna toward the center of the earth to search for the path of the first signal. In the embodiment of the present application, after the first device receives the first configuration information, it can first search based on the search direction indicated by the first configuration information. If the path of the first signal is found in the search direction, the obtained path can be considered as the aforementioned Figure 5 The path among the multiple paths mentioned in the illustrated embodiment. It can also be understood that the transmission direction of the path among the multiple paths includes the direction indicated by the information of the path to be searched. In another possible implementation, the first device may not search for a signal in the search direction indicated by the first configuration information. In this case, the first device may search for the path of the first signal according to the preconfigured direction.

[0246] The first configuration information may include the following information B1. Information B1 is information of the path to be searched. The information of the path to be searched may indicate the search direction of the first device, or indicate the search orientation of the first device, or indicate the direction (or orientation, transmission direction, etc.) of the path to be searched.

[0247] In a possible implementation, the information of the path to be searched includes the following reflecting surface information of the path to be searched (information B1.1), and may also include one or more of information B1.2, information B1.3, information B1.4 or information B1.5. Information B1.2 is the angle information of the path to be searched (also referred to as the search angle information of the first device). Information B1.3 is the type information of the path to be searched. Information B1.4 is the sorting of the path to be searched when the paths of at least one first signal are sorted in order of arrival time. Information B1.5 is the sorting of the path to be searched when the paths of at least one first signal are sorted in order of received power.

[0248] Information B1.1, reflecting surface information of the path to be searched.

[0249] The reflection surface information of the path to be searched can be used to indicate the transmission direction of the path to be searched, or to indicate the search direction of the first device. The first device can search for the reflection path based on the reflection surface information indicated by the first configuration information, and the reflection surface information of the searched reflection path matches (or is the same as) the reflection surface information indicated by the first configuration information.

[0250] Information B1.1 may include one or more of the following information B1.1.1, information B1.1.2, information B1.1.3, information B1.1.4, information B1.1.5, information B1.1.6 or information B1.1.7.

[0251] Information B1.1.1 is used to indicate the type of the reflecting surface of the path to be searched.

[0252] The types of the reflective surface of the path to be searched may include a wall, a mirror, the ground or a reflective plate.

[0253] The positioning management device indicates information about the type of the reflection surface of the path to be searched through the first configuration information. When the first device searches for the path of the first signal, the type of the reflection surface of the reflection path searched by the first device needs to be as similar as possible to the type of the reflection surface indicated by the first configuration information. The scheme for the first device to determine the type of the reflection surface of the searched reflection path can be referred to the above content and will not be repeated here.

[0254] The type of the reflective surface may implicitly indicate the direction and / or position of the reflective surface, or implicitly indicate the search direction of the first device.

[0255] For example, if the first configuration information indicates that the type of the reflective surface of the path to be searched is the ground, the first device needs to direct the antenna toward the ground for searching. The first device can determine the direction of the ground according to the sensor configured by itself.

[0256] For another example, if the first configuration information indicates that the type of the reflection surface of the path to be searched is a wall, the first device needs to direct the antenna toward the direction of the wall for searching. The first device can determine the direction of the wall according to the sensor configured by itself, for example, the wall can be located in a direction perpendicular to the ground, or the wall can be located in a horizontal direction.

[0257] Information B1.1.2 is used to indicate the material of the reflective surface of the path to be searched.

[0258] The material of the reflective surface of the path to be searched may include cement, wood, metal or glass, etc. The information of the material of the reflective surface indicates the property or surface condition of the reflective surface, which is related to the reflected energy.

[0259] The positioning management device indicates information about the material of the reflection surface of the path to be searched through the first configuration information. When the first device searches for the path of the first signal, the material of the reflection surface of the reflection path searched by the first device needs to be as consistent as possible with the material of the reflection surface indicated by the first configuration information. The scheme for the first device to determine the material of the reflection surface of the searched reflection path can be referred to the above content and will not be repeated here.

[0260] The material of the reflecting surface may implicitly indicate the direction and / or position of the reflecting surface, or implicitly indicate the search direction of the first device. For example, if the first configuration information indicates that the material of the reflecting surface of the path to be searched is cement, the first device infers that the reflecting surface is the ground, and the first device needs to turn the antenna direction toward the ground for searching.

[0261] For another example, if the first configuration information indicates that the material of the reflective surface of the path to be searched is glass, then it is inferred that the reflective surface is a wall, and the first device needs to direct the antenna toward the wall for searching.

[0262] Information B1.1.3 is used to indicate the reflectivity of the reflecting surface of the path to be searched.

[0263] The information on the reflectivity of the reflecting surface can be found in the relevant content of the aforementioned information A1.1.3 and will not be repeated here.

[0264] The positioning management device indicates the information of the reflectivity of the reflection surface of the path to be searched through the first configuration information. When the first device searches for the path of the first signal, the reflectivity of the reflection surface of the reflection path searched by the first device needs to be within the interval range of the reflectivity of the reflection surface indicated by the first configuration information. The scheme for the first device to determine the reflectivity of the reflection surface of the searched reflection path can be referred to the above content and will not be repeated here.

[0265] The reflectivity of the reflecting surface may implicitly indicate the direction and / or position of the reflecting surface, or implicitly indicate the search direction of the first device. For example, if the first configuration information indicates that the reflectivity of the reflecting surface of the path to be searched is low, the first device infers that the reflecting surface is the ground, and the first device needs to direct the antenna toward the ground for search.

[0266] For another example, if the first configuration information indicates that the reflectivity of the reflective surface of the path to be searched is high, it is inferred that the reflective surface is a wall (such as a wall made of mirror material), and the first device needs to direct the antenna toward the wall for search.

[0267] Information B1.1.4 is used to indicate the reflected energy of the reflecting surface of the path to be searched.

[0268] The information on the reflected energy of the reflecting surface can be found in the relevant content of the aforementioned information A1.1.4 and will not be repeated here.

[0269] The positioning management device indicates the information of the reflection energy of the reflection surface of the path to be searched through the first configuration information. When the first device searches for the path of the first signal, the reflection energy of the reflection surface of the reflection path searched by the first device needs to be within the interval range of the reflection energy of the reflection surface indicated by the first configuration information. The scheme for the first device to determine the reflection energy of the reflection surface of the searched reflection path can be referred to the above content and will not be repeated here.

[0270] The reflected energy of the reflecting surface may implicitly indicate the direction and / or position of the reflecting surface, or implicitly indicate the search direction of the first device. For example, if the first configuration information indicates that the reflected energy of the reflecting surface of the path to be searched is low, the first device infers that the reflecting surface is the ground, and the first device needs to turn the antenna direction toward the ground for searching.

[0271] For another example, if the first configuration information indicates that the reflection energy of the reflection surface of the path to be searched is high, it is inferred that the reflection surface is a wall (such as a wall made of mirror material), and the first device needs to direct the antenna toward the wall for search.

[0272] Information B1.1.5 is used to indicate the surface characteristics of the reflecting surface of the path to be searched.

[0273] Information on the surface characteristics of the reflective surface can be found in the relevant content of the aforementioned information A1.1.5 and will not be repeated here.

[0274] The positioning management device indicates information about the surface features of the reflection surface of the path to be searched through the first configuration information. When the first device searches for the path of the first signal, the surface features of the reflection surface of the reflection path searched by the first device need to match the surface features of the reflection surface indicated by the first configuration information. For example, the roughness indicated by the surface features of the reflection surface of the reflection path searched by the first device needs to be within the range of the roughness indicated by the surface features of the reflection surface indicated by the first configuration information. The scheme for the first device to determine the surface features of the reflection surface of the searched reflection path can be found in the aforementioned content and will not be repeated here.

[0275] The surface features of the reflecting surface may implicitly indicate the direction and / or position of the reflecting surface, or implicitly indicate the search direction of the first device. For example, if the first configuration information indicates that the surface features of the reflecting surface of the path to be searched indicate that the reflecting surface is relatively rough, the first device infers that the reflecting surface is the ground, and the first device needs to direct the antenna toward the ground for searching.

[0276] For another example, if the first configuration information indicates that the surface characteristics of the reflecting surface of the path to be searched indicate that the reflecting surface is relatively smooth, then it is inferred that the reflecting surface is a wall (such as a wall made of mirror material), and the first device needs to direct the antenna toward the wall for search.

[0277] Information B1.1.6 is used to indicate the direction information of the reflecting surface of the path to be searched.

[0278] In a possible example, the direction information for indicating the reflective surface of the path to be searched may indicate the orientation of the reflective surface, or indicate the direction of the normal vector of the reflective surface, or indicate the direction of the reflective surface relative to the first device.

[0279] The first device searches according to the direction information of the reflecting surface configured by the first configuration information, and the direction of the reflecting surface of the path searched by the first device matches the direction of the reflecting surface indicated by the first configuration information. For example, the direction of the reflecting surface of the path searched by the first device is within the direction range of the reflecting surface indicated by the first configuration information, or the direction of the reflecting surface of the path searched by the first device is the same as the direction of the reflecting surface indicated by the first configuration information.

[0280] For example, the direction of the reflection surface configured by the first configuration information is toward the sky, or the reflection surface configured by the first configuration information is located directly below the first device (this information can be understood as information about the direction of the reflection surface relative to the first device), or the direction of the normal vector of the reflection surface configured by the first configuration information is toward the center of the earth. In these cases, the antenna module of the first device will point the beam toward the center of the earth to search for the path of at least one first signal, and the direction of the reflection surface of the obtained path is also toward the sky.

[0281] For another example, the direction (or orientation) of the reflection surface configured by the first configuration information is perpendicular to the center of the earth, or the direction of the reflection surface configured by the first configuration information is parallel to the ground, or the direction of the normal vector of the reflection surface configured by the first configuration information is perpendicular to the center of the earth. In these cases, the antenna module of the first device will point the beam in the direction of the wall.

[0282] For another example, the reflection surface configured by the first configuration information is located in the east of the first device (the east is a word indicating a direction, and can also be replaced by other words indicating directions, such as the west, south, north, southwest, etc.) (this information can be understood as information about the direction of the reflection surface relative to the first device). In these cases, the antenna module of the first device will point the beam to the east (if the reflection surface indicated by the first configuration information is located in other directions of the first device (such as the west), the antenna module of the first device will point the beam to that direction (such as the west)).

[0283] For another example, the direction of the reflection surface configured in the first configuration information includes angle information of the reflection surface. The angle information of the reflection surface can refer to the relevant content of the aforementioned information A1.1.4, which will not be described in detail.

[0284] For example, if the first configuration information indicates that the direction of the reflecting surface is 45 degrees toward the southeast, the first device searches for the antenna module in the direction of 45 degrees toward the southeast.

[0285] For another example, the first configuration information indicates an angle range of the path to be searched, and the first device directs the antenna module toward the angle range, which can also be understood as the antenna module of the first device searching within the angle range to obtain the reflection path.

[0286] For another example, the first configuration information indicates the angle or direction of the path to be searched (the angle or direction may be pre-configured in the first device or configured to the first device by other devices), and the first device points the antenna module toward the angle or direction. It can also be understood that the antenna module of the first device searches within the angle or direction (the direction may be, for example, a horizontal direction) to obtain the reflection path.

[0287] In a possible example, after the first device obtains the angle or direction, it can also determine the angle range of the path to be searched based on the angle or direction, such as setting a direction (such as the horizontal direction or the north direction) as a reference, and the angle range of the path to be searched is plus or minus 15 degrees of the reference (15 degrees is an example, and other values ​​are also possible). For related content, please refer to the relevant description in the aforementioned information A1.1.6, which will not be repeated here.

[0288] Information B1.1.7 is used to indicate the position information of the reflecting surface of the path to be searched.

[0289] The position information of the reflective surface of the path to be searched may indicate the position of the reflective surface of the path to be searched by the first device, or indicate the position of the reflective surface relative to the first device. For example, the position information of the reflective surface of the path to be searched may indicate the coordinates of the reflective surface, or the relative distance between the reflective surface and the terminal. For more information, please refer to the relevant description in the aforementioned information B1.1.7, which will not be repeated here.

[0290] For example, the first configuration information indicates that the position information of the path to be searched is 45 degrees southeast of the first device. The first device searches at 45 degrees southeast, and finds a reflection path (the reflection path is one of the multiple paths measured by the first device). The position information of the reflection surface of the reflection path indicates that the reflection surface is located southeast of the first device. For another example, the first configuration information indicates that the position of the reflection surface of the path to be searched is located on the ground, and the first device searches toward the ground. For another example, the first configuration information indicates that the reflection surface of the path to be searched is located on a wall, and the wall can be a surface perpendicular to the ground, and the first device searches toward the wall.

[0291] Information B1.2, angle information of the path to be searched.

[0292] The angle information of the path to be searched may include information such as the direction of the incoming wave of the path to be searched.

[0293] The angle information of the path to be searched may include an angle range, and the angle range may be a search range when the first device searches for the path, or may be referred to as a search angle range of the first device.

[0294] For example, the first configuration information indicates that the angle range of the path to be searched is 42 degrees to 48 degrees in the southeast direction. Then the first device searches in the southeast direction, and the search range is 42 degrees to 48 degrees in the southeast direction of the first device.

[0295] For another example, the first configuration information indicates that the angle range of the path to be searched is 45 degrees in the southeast direction. Then the first device searches at 45 degrees in the southeast direction. In another possible example, the first device may also search within a range of 42 to 48 degrees in the southeast direction. 42 to 48 degrees can be considered as the angle range determined by the first device based on 45 degrees, and 42 to 48 degrees is obtained by adding or subtracting 3 degrees from 45 degrees, where 3 degrees is an example and can be replaced by other values.

[0296] Information B1.3, type information of the path to be searched.

[0297] The type of the path to be searched may include the first path or other paths. The type of the path to be searched may also include a reflection path or a direct path. The type information of the path to be searched may refer to the relevant content of the aforementioned information A1.3, which will not be repeated here.

[0298] The first device may search based on the type of the path indicated by the first configuration information, and the type of the path searched by the first device is the same as the type of the path configured by the first configuration information.

[0299] Information B1.4: order of the paths to be searched when the paths of at least one first signal are ordered according to the order of arrival time.

[0300] For example, if the first configuration information indicates that the paths to be searched are the first arrival path and the second arrival path, the first device may use the first arrival path and the second arrival path of the at least one first signal searched as the paths among the multiple paths indicated in the first information.

[0301] The content of information B1.4 can refer to the relevant content of the aforementioned information A1.4 and will not be repeated here.

[0302] Information B1.5, when the paths of at least one first signal are sorted in order of received power strength, the sorting of the paths among the multiple paths.

[0303] For example, if the first configuration information indicates that the paths to be searched are the first strongest path and the second strongest path, the first device may use the first strongest path and the second strongest path of the at least one first signal searched as the path among the multiple paths indicated in the first information.

[0304] The content of information B1.5 can refer to the relevant content of the aforementioned information A1.5 and will not be repeated here.

[0305] Step 702: The third device sends at least one first signal.

[0306] Correspondingly, the first device receives at least one first signal.

[0307] For step 702, reference may be made to the relevant contents of the aforementioned step 501, which will not be described in detail.

[0308] Step 703: The first device measures at least one first signal based on the first configuration information to obtain measurement results of multiple paths of the at least one first signal.

[0309] The measurement results of multiple diameters can be found in the above-mentioned related content and will not be repeated here.

[0310] Step 704: The first device determines first information according to measurement results of multiple paths of at least one first signal.

[0311] For step 704, reference may be made to the relevant contents of the aforementioned step 502, which will not be described in detail.

[0312] Step 705: The first device sends the first information.

[0313] Correspondingly, the positioning management device receives the first information.

[0314] In a possible example, the first information may be carried in the positioning information provided by the LPP.

[0315] For step 705, reference may be made to the relevant contents of the aforementioned step 503, which will not be described in detail.

[0316] Step 706: The positioning management device sends second information based on the first information.

[0317] Correspondingly, the second device receives the second information.

[0318] In a possible example, the second information may be carried in a new radiopositioning protocol annex (NRPPa) positioning information request.

[0319] The second information is used to assist the second device in configuring a reference signal for positioning for the first device. The second signal and the third signal in the embodiment of the present application are examples of two signals in the reference signal for positioning configured by the second device for the first device. The second signal and the third signal are, for example, SRS.

[0320] The second information is obtained based on the measurement results of multiple paths of at least one first signal received by the first device. The second information can also be determined based on the first information. The second information can include the following information C1 and / or information C2.

[0321] Information C1 is information used to indicate the transmission directions of multiple paths.

[0322] Information C1 can be understood as the information in the first information for indicating the transmission direction of multiple paths, and the information for indicating the transmission direction of multiple paths can include information for indicating the reflection surface of the path and / or information for indicating the path. Information C1 can include the content in the information A1, which will not be repeated here.

[0323] Information C2, the fourth information.

[0324] The fourth information may be used to indicate the spatial relationship of the reference signals (such as the second signal and the third signal) configured for positioning of the first device. The number of reference signals configured for positioning of the first device may be associated with the number of paths in the multiple paths obtained by the first device measuring at least one first signal. For example, the number of paths in the multiple paths obtained by the first device measuring at least one first signal is equal to (or greater than) the number of reference signals configured for positioning of the first device. Each reference signal configured for positioning of the first device may be associated with the spatial relationship of one of the multiple paths.

[0325] Taking the case where the reference signal used for positioning configured by the first device includes the second signal and the third signal as an example, the fourth information indicates the spatial relationship association between the second signal and the first path. The fourth information also indicates the spatial relationship association between the third signal and the second path.

[0326] In the embodiment of the present application, the signal received by the first device is collectively referred to as a first signal. The first signal may be one or more, for example, the multiple first signals are multiple PRSs.

[0327] In the present application, the first path and the second path may not be the paths among the multiple paths indicated by the first information obtained by the first device, for example, they may be two paths specified by the network device for the first device, or the first path and the second path are not the paths corresponding to at least one first signal. In another possible implementation, the first path and the second path are the paths among the multiple paths indicated by the first information obtained by the first device, or the first path and the second path are the two paths corresponding to at least one first signal measured by the first device.

[0328] In the embodiment of the present application, the first path and the second path are the same path corresponding to the first signal. For example, the first device measures a first signal to obtain the first path and the second path. Alternatively, the first path and the second path are the paths corresponding to two different first signals. In this case, the first device can measure a first signal to obtain the first path, and the first device can measure another first signal to obtain the second path. The first path and the second path may both be direct paths, or they may be other paths.

[0329] For example, the second device sends a first signal, the first path of the first signal is a direct path, and the second path is a reflected path reflected by the ground. For another example, the second device sends a first signal, the first path of the first signal is a direct path. The second device sends another first signal, and the second path is a reflected path of the first signal reflected by the wall. In these cases, the second device needs to configure at least two reference signals for the first device, such as the second signal and the third signal, respectively. The first device directs the transmission beam of the second signal toward the direction of the first path, and directs the transmission beam of the third signal toward the direction of the second path. In this way, the RTT corresponding to the second signal and the first path, and the RTT corresponding to the second signal and the second path can be used to more accurately calculate the location information of the first device and better eliminate errors in the RTT calculation process.

[0330] The second information can assist the second device in configuring the spatial relationship of the reference signals (such as the second signal and the third signal) used for positioning for the first device. When the second information includes the fourth information, the positioning management device can determine the spatial relationship of the reference signals (such as the second signal and the third signal) used for positioning sent by the first device based on the first information, and send the indication information of the spatial relationship to the second device so that the second device sends the spatial relationship to the first device.

[0331] The second information may also include other information, such as the number of paths among the multiple paths reported by the first device, so as to assist the second device in configuring a reference signal for positioning for the first device.

[0332] In the embodiment of the present application, the spatial relationship between a signal and a path can be understood in many ways. The spatial relationship between the second signal and the first path is introduced as an example below. The content of the spatial relationship between the third signal and the second path is similar to it and will not be repeated here.

[0333] In the embodiment of the present application, the spatial relationship association between the second signal and the first path of the first signal can also be referred to as the spatial relationship association between the second signal and the first signal (or as having an association relationship), or as the spatial relationship association between the second signal and the spatial relationship association of the first signal (or as having an association relationship). In the embodiment of the present application, the spatial relationship association between the second signal and the first path of the first signal can also be understood as the spatial association relationship between the propagation direction of the second signal and the first path of the first signal, or the sending direction of the second signal and the direction of the first path of the first signal are associated (for example, the two directions are consistent or close), or the sending beam direction of the second signal is associated with the propagation direction of the first path of the first signal (for example, the two directions are consistent or close), or the sending beam direction of the second signal is associated with the sending beam direction of the first path of the first signal (for example, the two directions are consistent or close), or the sending beam direction of the second signal is associated with the sending beam direction of the first path of the first signal (for example, the two directions are consistent or close).

[0334] There are many specific forms of the fourth information in the embodiments of the present application. The following is introduced by taking the first information indicating the spatial relationship association between the second signal and the first path as an example. The content of the fourth information indicating the spatial relationship association between the third signal and the second path is similar and will not be repeated. For example, the fourth information includes identification information of the first path of the first signal. In this way, the second device can determine the spatial relationship association between the second signal and the first path of the first signal based on the identification information of the first path of the first signal. In another possible implementation, the fourth information includes configuration information of the spatial relationship, and the configuration information of the spatial relationship is used to configure the spatial relationship of the second signal. The English name of the configuration information of the spatial relationship can be, for example, spatial relation information, and the configuration information of the spatial relationship can include identification information of the first path of the first signal. In this way, when the second device determines that the identification information of the first path of the first signal exists in the configuration information of the spatial relationship included in the first configuration information, it can determine that the spatial relationship of the second signal is associated with the spatial relationship of the first path of the first signal.

[0335] Step 707: The second device sends second configuration information according to the second information.

[0336] Correspondingly, the first device receives the second configuration information.

[0337] The second configuration information may be used to indicate the spatial relationship of reference signals (such as the second signal and the third signal) configured for positioning for the first device. For example, the second configuration information indicates that the second signal is associated with the spatial relationship of the first path, and the second configuration information also indicates that the third signal is associated with the spatial relationship of the second path. The second configuration information is used by the first device to send the second signal and the third signal.

[0338] If the second information includes the above information C1, the second device can configure the spatial relationship for the reference signal to be sent by the first device for positioning according to the information C1. If the second information includes the above information C2, that is, the fourth information. The second configuration information can directly include the spatial relationship of the reference signal to be sent by the first device for positioning indicated by the fourth information.

[0339] The spatial relationship of the reference signal configuration to be sent by the first device for positioning included in the second configuration information can refer to the relevant content of the spatial relationship indicated in the aforementioned fourth information, and will not be repeated here.

[0340] The second device may also configure a reference signal for positioning for the first device based on other information. For example, the second device may determine the number of reference signals configured for positioning for the first device based on the number of multiple paths obtained by the first device through measuring at least one first signal. For example, the two may be equal. Other configuration information of the reference signal for positioning may be sent to the first device together with the second configuration information, or may be sent to the first device separately.

[0341] In another possible implementation, the second device does not need to configure the spatial relationship of the reference signal to be sent by the first device for positioning, and the first device can determine the spatial relationship of the reference signal to be sent for positioning based on the first information (or the first device generates the second configuration information based on the measurement results of multiple paths of at least one first signal). In this case, the second device may no longer need to send information to the first device to indicate the spatial relationship of the reference signal to be sent by the first device for positioning. For example, the above step 707 may not be performed, or the second configuration information in step 707 may not include the spatial relationship of the reference signal for positioning configured for the first device.

[0342] Step 708: The first device sends a second signal and a third signal according to the second configuration information.

[0343] Correspondingly, the third device receives the second signal and the third signal.

[0344] Step 709: The third device determines third information according to the measurement result of the second signal and the measurement result of the third signal.

[0345] The third information may include the measurement result of the second signal and the measurement result of the third signal, and may also include some parameters determined according to the measurement result of the second signal and / or the measurement result of the third signal. The third information is used for positioning.

[0346] The measurement result of the second signal may include some parameters used for positioning, and these parameters may correspond to the positioning technology. For example, when the RTT positioning technology is used to locate the first device. The measurement result of the second signal may include the value of the first RTT (or the information of the round-trip delay corresponding to the second signal), and may also include some parameters used to determine the value of the first RTT. The first RTT can be obtained by the following formula: [(the time when the second signal arrives at the third device-the time when the third device sends the first signal)-(the time when the first path of the first signal arrives at the first device-the time when the first device sends the second signal)]. The measurement result of the second signal may include information indicating the sending time of the first path of the first signal, and / or, information on the time when the second signal arrives at the third device (or the second signal arrival time information). The measurement result of the second signal may also include information indicating the phase difference or arrival angle of the second signal. When the measurement result of the second signal includes the value of the first RTT, the third device may obtain some parameters for calculating the first RTT from other devices (such as the first device) (such as the time when the first path of the first signal arrives at the first device, and the time when the first device sends the second signal).

[0347] Similarly, the measurement result of the third signal may include some parameters used for positioning, and these parameters may correspond to the positioning technology. For example, when the RTT positioning technology is used to locate the first device. The measurement result of the third signal may include the value of the second RTT (or the information of the round-trip delay corresponding to the third signal), and may also include some parameters for determining the second RTT value. The second RTT can be obtained by the following formula: [(the time when the third signal arrives at the third device-the time when the third device sends the first signal)-(the time when the second path of the first signal arrives at the first device-the time when the first device sends the third signal)]. The measurement result of the third signal may include information indicating the sending time of the second path of the first signal, and / or, information on the time when the third signal arrives at the third device (or the third signal arrival time information). The measurement result of the third signal may also include information indicating the phase difference or arrival angle of the third signal. When the measurement result of the third signal includes the value of the second RTT, the third device may obtain some parameters for calculating the second RTT from other devices (such as the first device) (such as the time when the second path of the first signal arrives at the first device, and the time when the first device sends the third signal).

[0348] In the embodiment of the present application, the positioning management device and the third device can be on the same device or on different devices. When the positioning management device and the third device belong to the same device, the third device can have a positioning function. For example, the third device can determine the location information of the first device in combination with the third information (in this case, Figure 7In the solution, the following steps 710 and 711 may not be performed. When the positioning management device and the third device do not belong to the same device, the third device may send the third information to the positioning management device so that the positioning management device can determine the location information of the first device with the help of the third information, such as Figure 7 The method flow may include the following steps 710 and 711.

[0349] Step 710: The third device sends third information.

[0350] Correspondingly, the positioning management device receives the third information.

[0351] In a possible example, the third information may be carried in the NRPPa measurement response.

[0352] Step 711: The positioning management device determines the location information of the device to be positioned according to the first information and the third information.

[0353] Step 711 can be regarded as an implementation of the above step 504. In step 711, since the positioning management device can determine the location information of the device to be positioned (such as the first device) in combination with more information, the positioning accuracy can be further improved.

[0354] exist Figure 7 In the embodiment shown, the first device measures at least one first signal received, and may obtain a direct path or a reflected path. The direct path is relatively strong because it is unobstructed, and the first device can measure it more easily. However, the reflected path is difficult to measure because the propagation path is long and the path loss is large. Figure 7 In the provided embodiment, the first configuration information can indicate the direction of the path to be searched by the first device, so the first device can direct the receiving beam in the direction indicated by the first configuration information. When the direction of the receiving beam matches the direction of the path to be received, the first device receives greater energy in the path, thereby improving the accuracy of the measurement of the path.

[0355] On the other hand, when the location information of the first device is solved by the round-trip delay of the signal between the third device and the first device, the spatial relationship of multiple reference signals sent by the first device can be associated with multiple paths of at least one first signal received by the first device through the second configuration information, so that the multiple reference signals sent by the first device can be transmitted along the transmission direction of the path, thereby more accurately calculating the round-trip delay between the first device and the third device.

[0356] On the other hand, by calculating multiple round-trip delays, the influence of channel delay can be reduced, thereby improving the positioning accuracy. The specific analysis process of reducing channel delay can be found in the above Figure 6The description is not repeated here.

[0357] On the other hand, the second device can send second configuration information based on the received second information. Since the second information is obtained based on the information of the path obtained by the first device measuring the first signal, the second device can learn the specific conditions of each path obtained by the first device based on the second information, and then can more reasonably configure the spatial relationship of the reference signal for the first device.

[0358] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 2E , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The embodiments shown and the other contents described above, Figure 8 A flow chart of a communication method provided in an embodiment of the present application is exemplified. Figure 8 Can be regarded as Figure 5 and / or Figure 7 An extended embodiment of the embodiment. Figure 8 It can be understood as a combination of the solution provided in the embodiment of the present application and the existing standards. The various information appearing in the embodiment of the present application can be transmitted through a newly defined message or through a currently defined message.

[0359] Figure 8 In the example, the first device is a terminal, the second device and the third device are the same base station, and the positioning management device is LMF. The first device, the second device, the third device and the positioning management device may also be the aforementioned Figure 4 The contents described in will not be repeated here.

[0360] like Figure 8 As shown, the method includes:

[0361] Step 801: LMF and a base station exchange reference signal configuration information.

[0362] Through step 801, the LMF can obtain the reference signal (such as the first signal (such as PRS)) configuration information of the base station, such as the time-frequency domain resources of the reference signal, so as to send the reference signal configuration information to the terminal later. When the first signal sent by the base station is PRS, the English expression of the interaction between the base station and the LMF in step 801 can be: NRPPa PRS configuration information exchange.

[0363] Step 802: The LMF interacts with the terminal regarding positioning capabilities.

[0364] Through step 802, the LMF can know the positioning capability of the terminal, which positioning technologies the terminal supports, which parameters the terminal can measure, etc., which are used for positioning, and these parameters may include RTT, angle of arrival, etc.

[0365] Step 803: The positioning management device sends a message to the terminal that the LPP provides auxiliary data.

[0366] Correspondingly, the first device receives a message from the LPP providing auxiliary data.

[0367] In a possible example, the third configuration information may be carried in LPP provides assistance data, where LPP provides assistance data in English may be written as LPP provide assistance data.

[0368] In an embodiment of the present application, the third configuration information is used to configure at least one first signal. The third configuration information may include identification information of at least one first signal. The identification information of the first signal may include information that can indicate the first signal. For example, it may include one or more of the resource information of the first signal, the cell index corresponding to the first signal, the index of the first signal, or the configuration information of the first signal. For example, the first signal is a PRS, and the identification information of the first signal may include an identifier of the PRS, a resource set index of the PRS, or one or more of the resource index of the PRS.

[0369] Step 804: The positioning management device sends LPP positioning request information to the terminal.

[0370] Correspondingly, the terminal receives the LPP request positioning information.

[0371] The LPP request location information may be written as LPP request location information in English. The first configuration information may be carried in the LPP request location information.

[0372] For step 804, reference may be made to the relevant contents of the aforementioned step 701, which will not be described in detail.

[0373] Step 805: The base station sends at least one first signal.

[0374] Correspondingly, the terminal receives at least one first signal.

[0375] For step 805, reference may be made to the relevant contents of the aforementioned step 702, which will not be described in detail.

[0376] Step 806: The terminal measures at least one first signal to obtain measurement results of multiple paths of the at least one first signal.

[0377] For step 806, reference may be made to the relevant contents of the aforementioned step 703, which will not be described in detail.

[0378] Step 807: The terminal determines first information according to measurement results of multiple paths of at least one first signal.

[0379] For step 807, reference may be made to the relevant contents of the aforementioned step 704, which will not be described in detail.

[0380] Step 808: The terminal sends a message to LPP to provide positioning information.

[0381] Correspondingly, LMF receives the message from LPP providing positioning information.

[0382] The message that LPP provides positioning information may be LPP provide location information in English.

[0383] The first information may be carried in a message in which the LPP provides positioning information. In another possible implementation, the measurement result of at least one first signal obtained by the terminal in the embodiment of the present application (the aforementioned information A2) and the information used to indicate the transmission direction of multiple paths (information A1) may be sent through two messages respectively, or may be sent through one message.

[0384] For step 808, reference may be made to the relevant contents of the aforementioned step 705, which will not be described in detail.

[0385] Step 809, LMF sends NRPPa positioning information request.

[0386] Correspondingly, the base station receives the NRPPa positioning information request.

[0387] The NRPPa positioning information request may be written as NRPPa positioning information request in English. The second information may be carried in the NRPPa positioning information request.

[0388] For step 809, reference may be made to the relevant contents of the aforementioned step 706, which will not be described in detail.

[0389] Step 810: The base station sends reference signal configuration information.

[0390] Correspondingly, the first device receives reference signal configuration information.

[0391] When the reference signal sent by the terminal is SRS, the reference signal configuration information may also be UE SRS configuration information. The second configuration information may be carried in the reference signal configuration information. Or the second configuration information may be sent separately from the reference signal configuration information.

[0392] Before step 801, a step of the base station determining resources of a reference signal sent by the terminal may also be included.

[0393] For step 810, reference may be made to the relevant contents of the aforementioned step 707, which will not be described in detail.

[0394] Step 811: The base station sends an NRPPa positioning information response to the LMF.

[0395] Correspondingly, LMF receives NRPPa positioning information response.

[0396] The NRPPa positioning information response can be regarded as a response message of the NRPPa positioning information request. The NRPPa positioning information response can be written as NRPPa positioning information response in English.

[0397] Step 812: LMF sends an NRPPa positioning activation request to the base station.

[0398] Correspondingly, the base station receives the NRPPa positioning activation request.

[0399] The NRPPa positioning activation request may be used to instruct the base station to activate the transmission of the reference signal on the terminal side. The NRPPa positioning activation request may be written as NRPPa positioning activation request in English.

[0400] Step 813: The base station sends a message for activating reference signal transmission to the terminal.

[0401] Correspondingly, the terminal receives a message for activating reference signal transmission.

[0402] If the reference signal sent by the terminal is an SRS, the message for activating the transmission of the reference signal may be written as activate SRS transmission in English.

[0403] Step 814: The base station sends an NRPPa positioning activation response to the LMF.

[0404] Correspondingly, LMF receives the NRPPa positioning activation response sent by the base station.

[0405] The NRPPa positioning activation response can be regarded as a response message of the NRPPa positioning activation request. The NRPPa positioning activation response can be written as NRPPa positioning activation response in English.

[0406] Step 815: LMF sends an NRPPa measurement request to the base station.

[0407] Correspondingly, the base station receives the NRPPa measurement request.

[0408] The NRPPa measurement request may be written as NRPPa measurement request in English. After receiving the NRPPa measurement request, the base station may measure the reference signal received from the terminal.

[0409] Step 816: The terminal sends a second signal and a third signal.

[0410] Correspondingly, the base station receives the second signal and the third signal.

[0411] For step 816, reference may be made to the relevant contents of the aforementioned step 708, which will not be described in detail.

[0412] Step 817: The base station measures the second signal and the third signal, and determines third information according to the measurement result of the second signal and the measurement result of the third signal.

[0413] For step 817, please refer to the relevant content of the aforementioned step 709, which will not be repeated here.

[0414] Step 818: The base station sends an NRPPa measurement response.

[0415] Correspondingly, the LMF receives the NRPPa measurement response.

[0416] The NRPPa measurement response may be referred to as NRPPa measurement response in English. The third information may be carried in the NRPPa measurement response. The NRPPa measurement response may be regarded as a response message to the NRPPa measurement request.

[0417] For step 818, reference may be made to the relevant contents of the aforementioned step 710, which will not be described in detail.

[0418] Step 819: LMF determines the location information of the device to be located based on the first information and the third information.

[0419] For step 819, please refer to the relevant contents of the aforementioned step 711, which will not be described in detail.

[0420] Step 820: LMF sends a message to the base station to deactivate NRPPa positioning.

[0421] Correspondingly, the base station receives an NRPPa positioning deactivation message, which can be written as NRPPa positioning deactivationg in English. The NRPPa positioning deactivation message can deactivate the current positioning process between the base station and the terminal. After receiving the message, the base station may no longer send the first signal.

[0422] based on Figure 1 , Figure 2A , Figure 2B , Figure 2C , Figure 2D , Figure 2E , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The embodiments shown and the other contents described above, Fig. 9 A flow chart of a communication method provided in an embodiment of the present application is exemplified. Fig. 9 Can be regarded as Figure 8 Another possible embodiment of the embodiment.

[0423] and Figure 8 The difference is that Figure 8 The order of the steps in the can be adjusted. Fig. 9 An example is shown Figure 8 An example in which the order of the steps in are adjusted. Fig. 9 After the adjustment in the steps, the time when the terminal measures the first signal can be closer to the time when the base station measures the second signal and the third signal. Since the terminal may be in a moving process, when the time when the terminal measures the reference signal is closer to the time when the base station measures the reference signal, the error in the positioning process can be further reduced and the positioning accuracy can be improved.

[0424] Fig. 9 In the example, the first device is a terminal, the second device and the third device are the same base station, and the positioning management device is LMF. The first device, the second device, the third device and the positioning management device may also be the aforementioned Figure 4 The contents described in will not be repeated here.

[0425] like Fig. 9 As shown, the method includes:

[0426] Step 901: The LMF exchanges reference signal configuration information with the base station.

[0427] For step 901, reference may be made to the relevant contents of the aforementioned step 801, which will not be described in detail.

[0428] Step 902: LMF interacts with the terminal regarding positioning capabilities.

[0429] For step 902, reference may be made to the relevant contents of the aforementioned step 802, which will not be described in detail.

[0430] Step 903, LMF sends NRPPa positioning information request.

[0431] Correspondingly, the base station receives the NRPPa positioning information request.

[0432] exist Fig. 9 In the scheme shown, LMF has not obtained the information of the reflecting surface of the path measured by the terminal before sending the NRPPa positioning information request. Therefore, LMF may not send the second information, or it can be understood that the second information is not carried in the NRPPa positioning information request. In this case, the terminal can configure the spatial relationship between the second signal and the third signal by itself.

[0433] For step 903, reference may be made to the relevant contents of the aforementioned step 809, which will not be described in detail.

[0434] Step 904: The base station sends reference signal configuration information.

[0435] Correspondingly, the first device receives reference signal configuration information.

[0436] exist Fig. 9 In the scheme shown, the base station has not yet obtained the information of the reflection surface of the path measured by the terminal before sending the reference signal configuration information, so the base station may not configure the spatial relationship for the reference signal to be sent by the terminal. In this case, the terminal can configure the spatial relationship between the second signal and the third signal by itself. The configuration information of the reference signal may not include the second configuration information.

[0437] For step 904, reference may be made to the relevant contents of the aforementioned step 810, which will not be described in detail.

[0438] Step 905: The base station sends an NRPPa positioning information response to the LMF.

[0439] Correspondingly, LMF receives NRPPa positioning information response.

[0440] For step 905, reference may be made to the relevant contents of the aforementioned step 811, which will not be described in detail.

[0441] Step 906: LMF sends an NRPPa positioning activation request to the base station.

[0442] Correspondingly, the base station receives the NRPPa positioning activation request.

[0443] For step 906, reference may be made to the relevant contents of the aforementioned step 812, which will not be described in detail.

[0444] Step 907: The base station sends a message for activating reference signal transmission to the terminal.

[0445] Correspondingly, the terminal receives a message for activating reference signal transmission.

[0446] For step 907, please refer to the relevant content of the aforementioned step 813, which will not be repeated here.

[0447] Step 908: The base station sends an NRPPa positioning activation response to the LMF.

[0448] Correspondingly, LMF receives the NRPPa positioning activation response sent by the base station.

[0449] For step 908, reference may be made to the relevant contents of the aforementioned step 814, which will not be described in detail.

[0450] Step 909: LMF sends an NRPPa measurement request to the base station.

[0451] Correspondingly, the base station receives the NRPPa measurement request.

[0452] For step 909, reference may be made to the relevant contents of the aforementioned step 815, which will not be described in detail.

[0453] Step 910: The positioning management device sends a message to the terminal that LPP provides auxiliary data.

[0454] Correspondingly, the first device receives a message from the LPP providing auxiliary data.

[0455] For step 910, reference may be made to the relevant contents of the aforementioned step 803, which will not be described in detail.

[0456] Step 911: The positioning management device sends LPP positioning request information to the terminal.

[0457] Correspondingly, the terminal receives the LPP request positioning information.

[0458] For step 911, please refer to the relevant content of the aforementioned step 804, which will not be repeated here.

[0459] Step 912: The base station sends at least one first signal.

[0460] Correspondingly, the terminal receives at least one first signal.

[0461] For step 912, reference may be made to the relevant contents of the aforementioned step 805, which will not be described in detail.

[0462] Step 913: The terminal measures at least one first signal to obtain measurement results of multiple paths of the at least one first signal.

[0463] For step 913, reference may be made to the relevant contents of the aforementioned step 806, which will not be described in detail.

[0464] Step 914: The terminal sends a second signal and a third signal.

[0465] Correspondingly, the base station receives the second signal and the third signal.

[0466] For step 914, please refer to the relevant content of the aforementioned step 816, which will not be repeated here.

[0467] Step 915: The base station measures the second signal and the third signal, and determines third information according to the measurement result of the second signal and the measurement result of the third signal.

[0468] For step 915, please refer to the relevant content of the aforementioned step 817, which will not be repeated here.

[0469] Step 916: The terminal determines first information according to measurement results of multiple paths of at least one first signal.

[0470] For step 916, reference may be made to the relevant contents of the aforementioned step 807, which will not be described in detail.

[0471] Step 917: The terminal sends a message to LPP to provide positioning information.

[0472] Correspondingly, LMF receives the message from LPP providing positioning information.

[0473] For step 917, please refer to the relevant content of the aforementioned step 808, which will not be repeated here.

[0474] Step 918: The base station sends an NRPPa measurement response.

[0475] Correspondingly, LMF receives the NRPPa measurement response.

[0476] For step 918, please refer to the relevant content of the aforementioned step 818, which will not be repeated here.

[0477] Step 919: LMF determines the location information of the device to be located based on the first information and the third information.

[0478] For step 919, please refer to the relevant content of the aforementioned step 819 and will not be repeated here.

[0479] Step 920: LMF sends a message to the base station to deactivate NRPPa positioning.

[0480] Correspondingly, the base station receives the NRPPa positioning deactivation message.

[0481] For step 920, reference may be made to the relevant contents of the aforementioned step 820, which will not be described in detail.

[0482] Fig.10 and Fig.11 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 The terminal 120 shown may also be Figure 1 The RAN node 110 shown may also be a module (such as a chip) applied to the terminal 120 or the RAN node 110, and the communication device may be a positioning management device in an embodiment of the present application, or a module (such as a chip) applied to a positioning management device.

[0483] like Fig.10 As shown, the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320. The communication device 1300 is used to implement the above Figure 5 , Figure 7 , Figure 8 or Fig. 9 The functions of the terminal or base station in the method embodiment shown in FIG.

[0484] When the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 The function of the first device in the method embodiment shown is: the processing unit 1310 is used to: receive at least one first signal through the transceiver unit 1320, and determine the first information according to the measurement results of multiple paths of the at least one first signal.

[0485] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 The function of the first device in the method embodiment shown is: the processing unit 1310 is further used to: send the first information through the transceiver unit 1320.

[0486] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9The function of the first device in the method embodiment shown is: the processing unit 1310 is also used to: receive the first configuration information through the transceiver unit 1320, measure at least one first signal based on the first configuration information, and obtain measurement results of multiple paths of the at least one first signal.

[0487] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 The function of the first device in the method embodiment shown is: the processing unit 1310 is also used to: obtain second configuration information through the transceiver unit 1320, and send a second signal and a third signal according to the second configuration information.

[0488] When the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 When the function of the positioning management device in the method embodiment shown is: the processing unit 1310 is also used to: receive first information through the transceiver unit 1320, the first information is determined based on the measurement results of multiple paths of at least one first signal, and determine the location information of the device to be positioned based on the first information.

[0489] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 When the function of the positioning management device in the method embodiment shown is: the processing unit 1310 is further used to: send the first configuration information through the transceiver unit 1320.

[0490] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 When the function of the location management device is located in the method embodiment shown: the processing unit 1310 is further used to: send the second information through the transceiver unit 1320.

[0491] In a possible implementation, when the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 When the function of the positioning management device in the method embodiment shown is: the processing unit 1310 is also used to: receive the third information through the transceiver unit 1320, and determine the location information of the device to be positioned according to the first information and the third information.

[0492] When the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 The function of the second device in the method embodiment shown is: the processing unit 1310 is further used to: receive second information through the transceiver unit 1320, and send second configuration information according to the second information.

[0493] When the communication device 1300 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 The function of the third device in the method embodiment shown is: the processing unit 1310 is also used to: send at least one first signal through the transceiver unit 1320, and receive the second signal and the third signal.

[0494] For more detailed description of the processing unit 1310 and the transceiver unit 1320, please refer to Figure 5 , Figure 7 , Figure 8 or Fig. 9 The method embodiment shown is described in detail.

[0495] like Fig.11 As shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It is understood that the interface circuit 1420 can be a transceiver or an input-output interface. Optionally, the communication device 1400 may also include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute instructions or storing data generated after the processor 1410 executes instructions.

[0496] When the communication device 1400 is used to implement Figure 5 , Figure 7 , Figure 8 or Fig. 9 When the method is shown, the processor 1410 is used to implement the function of the above-mentioned processing unit 1310, and the interface circuit 1420 is used to implement the function of the above-mentioned transceiver unit 1320.

[0497] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal device in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.

[0498] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the network device in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.

[0499] In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it to B indirectly through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside the RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station.

[0500] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0501] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0502] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When a computer program or instruction is loaded and executed on a computer, the process or function of the embodiment of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc; it can also be a semiconductor medium, such as a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0503] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0504] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: 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 the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0505] It is understood that the various numbers involved in the embodiments of the present application (such as the digital numbers "first" and "second", and the letter numbers "parameter A", "parameter B", "parameter C", etc.) are only distinguished for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A positioning method, characterized in that: The method is applicable to a first device, and the method comprises: The first device receives at least one first signal; The first device determines first information according to the measurement results of multiple paths of the at least one first signal, and the first information includes information indicating the reflection surfaces of the multiple paths.

2. The method according to claim 1, characterized in that The information for indicating the reflection surfaces of the multiple paths includes at least one of the following: Information indicating the type of reflective surface of the path; Information indicating the material of the reflective surface of the path; Information indicating the reflectivity of the reflective surface of the path; Information indicating the reflected energy of the reflecting surface of the path; information indicating the surface characteristics of the reflective surface of the path; Direction information of the reflecting surface indicating the path; or Used to indicate position information of the reflecting surface of the path.

3. The method according to any one of claims 1 to 2, characterized in that: The method further comprises: The first device sends the first information.

4. The method according to any one of claims 1 to 3, characterized in that: Before the first device determines the first information according to the measurement results of the multiple paths of the at least one first signal, the first device further includes: The first device receives first configuration information, wherein the first configuration information includes reflection surface information of a path to be searched; The first device measures the at least one first signal based on the first configuration information to obtain measurement results of the multiple paths of the at least one first signal.

5. The method according to claim 4, characterized in that The reflection surface information of the path to be searched includes at least one of the following: Information used to indicate the type of the reflective surface of the path to be searched; Information used to indicate the material of the reflective surface of the path to be searched; Information indicating the reflectivity of the reflective surface of the path to be searched; Information for indicating the reflected energy of the reflecting surface of the path to be searched; Information indicating the surface characteristics of the reflective surface of the path to be searched; Direction information for indicating the reflecting surface of the path to be searched; or Used to indicate the position information of the reflecting surface of the path to be searched.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: The first device acquires second configuration information, where the second configuration information indicates that the second signal is associated with a spatial relationship of the first path, and the second configuration information further indicates that the third signal is associated with a spatial relationship of the second path; The first device sends the second signal and the third signal according to the second configuration information.

7. A positioning method, characterized in that: The method is applicable to a positioning management device, and the method comprises: The positioning management device receives first information, where the first information is determined based on measurement results of multiple paths of at least one first signal, and the first information includes information indicating reflection surfaces of the multiple paths; The positioning management device determines the location information of the device to be positioned according to the first information.

8. The method according to claim 7, characterized in that The information for indicating the reflection surfaces of the multiple paths includes at least one of the following: Information indicating the type of reflective surface of the path; Information indicating the material of the reflective surface of the path; Information indicating the reflectivity of the reflective surface of the path; Information indicating the reflected energy of the reflective surface of the path; information indicating the surface characteristics of the reflective surface of the path; Direction information of the reflecting surface indicating the path; or Used to indicate the position information of the reflecting surface of the path.

9. The method according to any one of claims 7 to 8, characterized in that: Before the positioning management device receives the first information, the method further includes: The positioning management device sends first configuration information, where the first configuration information includes reflection surface information of the path to be searched.

10. The method according to claim 9, characterized in that The reflection surface information of the path to be searched includes at least one of the following: Information used to indicate the type of the reflective surface of the path to be searched; Information used to indicate the material of the reflective surface of the path to be searched; Information indicating the reflectivity of the reflective surface of the path to be searched; Information for indicating the reflected energy of the reflecting surface of the path to be searched; Information indicating the surface characteristics of the reflective surface of the path to be searched; Direction information for indicating the reflecting surface of the path to be searched; or Used to indicate the position information of the reflecting surface of the path to be searched.

11. The method according to any one of claims 7 to 10, characterized in that: After receiving the first information, the positioning management device further includes: The positioning management device sends second information according to the first information; The second information includes: information indicating the reflection surfaces of the multiple paths, and / or fourth information; The fourth information indicates that the second signal is associated with the first path in a spatial relationship, and the fourth information further indicates that the third signal is associated with the second path in a spatial relationship.

12. A positioning method, characterized in that: The method is applicable to a second device, and the method comprises: The second device receives second information, and the second information is obtained based on the measurement results of multiple paths of at least one first signal received by the first device; the second device sends second configuration information based on the second information, and the second configuration information indicates that the second signal is associated with the first path in a spatial relationship, and the second configuration information also indicates that the third signal is associated with the second path in a spatial relationship, and the second configuration information is used by the first device to send the second signal and the third signal.

13. The method according to claim 12, characterized in that The second information includes: Information indicating the reflection surfaces of the multiple paths; and / or, Fourth information, the fourth information indicating that the second signal is associated with the first path in a spatial relationship, and the fourth information further indicating that the third signal is associated with the second path in a spatial relationship.

14. A positioning device, characterized in that: The device includes a processor and an interface circuit; The processor is used to: receiving at least one first signal through the interface circuit; According to the measurement results of the multiple paths of the at least one first signal, first information is determined, where the first information includes information indicating the reflection surfaces of the multiple paths.

15. The device according to claim 14, characterized in that The information for indicating the reflection surfaces of the multiple paths includes at least one of the following: Information indicating the type of reflective surface of the path; Information indicating the material of the reflective surface of the path; Information indicating the reflectivity of the reflective surface of the path; Information indicating the reflected energy of the reflective surface of the path; information indicating the surface characteristics of the reflective surface of the path; Direction information of the reflecting surface indicating the path; or Used to indicate the position information of the reflecting surface of the path.

16. The device according to any one of claims 14 to 15, characterized in that The interface circuit is also used for: The first information is sent.

17. The device according to any one of claims 14 to 16, characterized in that The interface circuit is also used for: Receiving first configuration information, wherein the first configuration information includes reflection surface information of a path to be searched; The processor is further configured to: The at least one first signal is measured based on the first configuration information to obtain measurement results of the multiple paths of the at least one first signal.

18. The device according to claim 17, characterized in that The reflection surface information of the path to be searched includes at least one of the following: Information used to indicate the type of the reflective surface of the path to be searched; Information used to indicate the material of the reflective surface of the path to be searched; Information indicating the reflectivity of the reflective surface of the path to be searched; Information for indicating the reflected energy of the reflecting surface of the path to be searched; Information indicating the surface characteristics of the reflective surface of the path to be searched; Direction information for indicating the reflecting surface of the path to be searched; or Used to indicate the position information of the reflecting surface of the path to be searched.

19. The device according to any one of claims 14 to 18, characterized in that: The processor is further configured to: Acquire second configuration information, where the second configuration information indicates a spatial relationship association between the second signal and the first path, and the second configuration information further indicates a spatial relationship association between the third signal and the second path; The second signal and the third signal are sent through the interface circuit according to the second configuration information.

20. A positioning device, characterized in that: The device includes a processor and an interface circuit; The processor is used to: receiving first information through the interface circuit, where the first information is determined based on a measurement result of multiple paths of at least one first signal, and the first information includes information indicating a reflection surface of the multiple paths; The location information of the device to be located is determined according to the first information.

21. The device according to claim 20, characterized in that The information for indicating the reflection surfaces of the multiple paths includes at least one of the following: Information indicating the type of reflective surface of the path; Information indicating the material of the reflective surface of the path; Information indicating the reflectivity of the reflective surface of the path; Information indicating the reflected energy of the reflective surface of the path; information indicating the surface characteristics of the reflective surface of the path; Direction information of the reflecting surface indicating the path; or Used to indicate the position information of the reflecting surface of the path.

22. The device according to any one of claims 20 to 21, characterized in that The interface circuit is also used for: Sending first configuration information, where the first configuration information includes reflection surface information of a path to be searched.

23. The device according to claim 22, characterized in that The reflection surface information of the path to be searched includes at least one of the following: Information used to indicate the type of the reflective surface of the path to be searched; Information used to indicate the material of the reflective surface of the path to be searched; Information indicating the reflectivity of the reflective surface of the path to be searched; Information for indicating the reflected energy of the reflecting surface of the path to be searched; Information indicating the surface characteristics of the reflective surface of the path to be searched; Direction information for indicating the reflecting surface of the path to be searched; or Used to indicate the position information of the reflecting surface of the path to be searched.

24. The device according to any one of claims 20 to 23, characterized in that The processor is further configured to: sending second information through the interface circuit according to the first information; The second information includes: information indicating the reflection surfaces of the multiple paths, and / or fourth information; The fourth information indicates that the second signal is associated with the first path in a spatial relationship, and the fourth information further indicates that the third signal is associated with the second path in a spatial relationship.

25. A positioning device, characterized in that: The device includes a processor and an interface circuit; The processor is used to: receiving second information through the interface circuit, where the second information is obtained based on measurement results of multiple paths of at least one first signal received by the first device; According to the second information, second configuration information is sent through the interface circuit, the second configuration information indicates that the second signal is associated with the spatial relationship of the first path, the second configuration information also indicates that the third signal is associated with the spatial relationship of the second path, and the second configuration information is used by the first device to send the second signal and the third signal.

26. The device according to claim 25, characterized in that The second information includes: Information indicating the reflection surfaces of the multiple paths; and / or, The fourth information indicates that the second signal is associated with the first path in a spatial relationship, and the fourth information further indicates that the third signal is associated with the second path in a spatial relationship.

27. A communication device, characterized in that: The method comprises a processing unit and a communication unit, wherein the processing unit is used to execute the method according to any one of claims 1 to 13 through the communication unit.

28. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are called by a computer, the method according to any one of claims 1 to 13 is executed.

29. A chip system, characterized in that: The chip system includes at least one processor and an interface circuit, the interface circuit and the at least one processor are interconnected via lines, and the processor executes the method according to any one of claims 1 to 13 by running instructions.

30. A computer program product, characterized in that The computer program product stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the method according to any one of claims 1 to 13 is executed.

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