WO2023116658A1 - Positioning mode acquisition method, electronic device and storage medium - Google Patents

Abstract

Provided in the embodiments of the present application are a positioning mode acquisition method, an electronic device and a storage medium. The method comprises: acquiring a positioning mode, wherein the positioning mode at least comprises a first positioning mode and a second positioning mode; and performing positioning according to the positioning mode.

Description

A positioning mode acquisition method, electronic equipment and storage medium technical field

The present application relates to the technical field of wireless communication, for example, to a method for acquiring a positioning mode, electronic equipment and a storage medium.

Background technique

Positioning technology is widely used in different fields of modern life, such as automatic driving, map navigation, smart factories, etc., and with the development of technology, the requirements for positioning accuracy are gradually increasing. Generally speaking, conventional time-based or angle-based positioning algorithms in related technologies require a line of sight (Line Of Sight, LOS) between the terminal and the positioning device. In this case, the positioning accuracy is not high, and the error will exceed ten meters, which cannot meet the needs of production and life. At present, artificial intelligence (AI) is a relatively important technology, which can be combined with positioning technology to greatly improve the positioning accuracy. However, the current positioning method combined with AI is limited by the label of the current channel scene. After the channel environment changes, the AI network parameters trained based on the original channel environment are quite different from the changed channel, resulting in the positioning accuracy of the AI-based positioning method. For example, the network parameters trained in InF-DL (Indoor Factory with Dense clutter and Low base station height) are difficult to use in the InF-DH (Indoor Factory with Dense clutter and High base station height) scene. In the same environment, Changes in channel properties will also be caused by changes in blocking, shadow fading, and interference. Once the trained network parameters cannot adapt to the new scene, it may lead to an increase in positioning error.

Contents of the invention

Embodiments of the present application provide a method for acquiring a positioning mode, an electronic device, and a storage medium.

An embodiment of the present application provides a positioning mode acquisition method, wherein the method includes the following steps:

Acquiring a positioning mode, wherein the positioning mode includes a first positioning mode and a second positioning mode; performing positioning according to the positioning mode.

The embodiment of the present application provides a method for obtaining a positioning mode, which is applied to a device, including:

Get positioning mode;

Feedback the positioning mode;

Wherein, the positioning mode is used to instruct other devices to perform positioning according to the positioning mode.

The embodiment of the present application also provides an electronic device, wherein the electronic device includes:

one or more processors;

memory for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors are made to implement any method described in the embodiments of the present application.

Description of drawings

FIG. 1 is a flow chart of a positioning mode acquisition method provided in an embodiment of the present application;

FIG. 2 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

Fig. 3 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

Fig. 4 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

Fig. 5 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

Fig. 6 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

Fig. 7 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application;

FIG. 8 is a schematic diagram of a wireless network positioning architecture provided by an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a device for acquiring a positioning mode provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

In the subsequent description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating the description of the present application and has no specific meaning by itself. Therefore, 'module', 'part' or 'unit' may be used in combination.

In practical applications, high-precision positioning is our goal. For example, in 3GPP Release 17, the positioning requirement in the Industrial Internet of Things (IIOT) scenario is that the positioning error is less than 0.2m. Under NLOS, the classic positioning algorithm generally cannot meet the above positioning requirements, but AI-based positioning accuracy can be improved. However, AI-based positioning has generalization problems. For example, network parameters trained in Indoor Factory with Dense clutter and Low base station height (InF-DL) are difficult to apply to dense impurities and low base station heights. Indoor Factory with Dense clutter and High base station height (InF-DH) scenarios, even in the same scenario due to changes in blocking, changes in shadow fading, and changes in interference, the channel properties vary greatly. The trained network parameters may not be able to adapt to new scenarios, resulting in increased positioning errors. At present, AI-based positioning can greatly improve the positioning accuracy, but after all, it depends on the channel scene corresponding to the current training parameters. After the channel environment changes, if the changed channel environment is quite different from the scene corresponding to the training AI network parameters, it will cause AI On the contrary, the positioning accuracy of the positioning method is not as good as that of the non-AI positioning method in the related art. Therefore, it is necessary to be able to dynamically switch between the AI positioning mode and the positioning mode in related technologies during the positioning process.

Fig. 1 is a flow chart of a method for acquiring a positioning mode provided by an embodiment of the present application. The embodiment of the present application is applicable to the situation of positioning in a wireless network. The method can be executed by a device for obtaining a positioning mode. The device can be implemented by means of software and/or hardware, and is generally applied to equipment, which can include terminals and base stations. and core network equipment, etc., referring to Figure 1, the method provided by the embodiment of the present application specifically includes the following steps:

Step 110, acquiring a positioning mode, wherein the positioning mode includes at least a first positioning mode and a second positioning mode.

Wherein, the positioning mode may be a mode used when the device in the wireless network performs positioning, and a suitable positioning mode can reduce the positioning accuracy error of the device. In the embodiment of the present application, the types of positioning modes may include at least two types, that is, the first positioning mode and the second positioning mode, wherein the first positioning mode mainly refers to a positioning method based on artificial intelligence technology, and the second positioning mode Refers to the commonly used positioning methods based on non-artificial intelligence in related technologies.

In this embodiment of the application, before the device performs positioning, the positioning mode required for positioning can be obtained. The positioning module can be the first positioning mode or the second positioning mode. It can be understood that the obtained positioning mode can be positioning The indication of the mode or the identification number of the positioning mode.

Step 120, perform positioning according to the positioning mode.

Specifically, after acquiring the positioning mode, the device may perform positioning according to the positioning mode.

In the embodiment of the present application, by acquiring the positioning mode, the positioning mode can include the first positioning mode or the second positioning mode, and positioning can be performed according to the method corresponding to the positioning mode. In the embodiment of the present application, determining the positioning mode before positioning can prevent the positioning mode from Fix the problem of large positioning accuracy errors, and enhance the reliability of positioning services. For example, when the device is a terminal or a base station with a positioning function, the base station or terminal can acquire a positioning mode and perform positioning according to the positioning mode.

In an example, the terminal acquires a positioning mode and performs positioning according to the positioning mode. Another example is that the base station acquires a positioning mode and performs positioning according to the positioning mode. Another example is that the location management function (Location Management Function, LMF) acquires a positioning mode and performs positioning according to the positioning mode.

Fig. 2 is a flow chart of another positioning mode acquisition method provided by an embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to FIG. 2, the method provided in the embodiment of the present application includes the following steps:

Step 210: Receive a positioning mode, and determine a positioning mode according to the received positioning mode.

In the embodiment of this application, the device can receive the positioning mode sent by other devices, and determine the positioning mode used for its own positioning according to the received positioning mode. For example, the base station or the LMF transmits the positioning mode to the terminal, and the terminal receives the positioning mode transmitted by the base station or the LMF, and the terminal can determine the positioning mode used for its own positioning according to the positioning mode. Another example is that the terminal feeds back the positioning mode to the base station or LMF, the base station or LMF receives the positioning mode, and the base station or LMF determines the positioning mode used for its own positioning according to the received positioning mode.

Step 220, perform positioning according to the positioning mode.

In the embodiment of the present application, the device may receive the positioning mode sent by other devices, and perform positioning according to the positioning mode. For example, when the device is a terminal that does not determine its own positioning mode but has positioning capabilities, the base station or LMF may send the positioning mode to the terminal, and the terminal performs positioning according to the positioning mode. For another example, when the device is a base station that does not determine its own positioning mode but has positioning capabilities, the terminal or LMF may send the positioning mode to the base station, and the base station performs positioning according to the positioning mode.

In an example, the base station acquires the positioning mode and transmits the positioning mode to the terminal, and the terminal receives the positioning mode and performs positioning according to the positioning mode. In yet another example, the LMF acquires the positioning mode and transmits the positioning mode to the terminal, and the terminal receives the positioning mode and performs positioning according to the positioning mode. In another example, the terminal acquires the positioning mode and transmits the positioning mode to the base station, and the base station receives the positioning mode and performs positioning according to the positioning mode. In another example, the terminal acquires the positioning mode and transmits the positioning mode to the LMF, and the LMF receives the positioning mode and performs positioning according to the positioning mode. In another example, the LMF acquires the positioning mode and transmits the positioning mode to the base station, and the base station receives the positioning mode and performs positioning according to the positioning mode.

Fig. 3 is a flow chart of another positioning mode acquisition method provided by an embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to Figure 3, the method provided in the embodiment of the present application specifically includes the following steps:

Step 310: Obtain a positioning mode, where the positioning mode includes at least a first positioning mode and a second positioning mode.

Step 320, feedback the positioning mode, so that other nodes perform positioning according to the positioning mode.

In this embodiment of the application, when the device does not have the positioning capability, the device can feed back the positioning mode acquired by itself to other devices with positioning capability, and other devices with positioning capability perform positioning according to the feedback positioning mode. Exemplarily, when the base station or the terminal has no positioning capability, the base station or the terminal may obtain the positioning mode, and send the positioning mode to the LMF, and the LMF with the positioning capability performs positioning according to the positioning mode.

In an example, the terminal obtains the positioning mode, and feeds back the positioning mode to the base station, so that the base station performs positioning according to the fed back positioning mode. In an example, the terminal obtains the positioning mode, and feeds back the positioning mode to the LMF, so that the LMF performs positioning according to the fed back positioning mode. In another example, the base station obtains the positioning mode, and transmits the positioning mode to the LMF, so that the LMF performs positioning according to the transmitted positioning mode. In an example, the LMF acquires the positioning mode, and transmits the positioning mode to the terminal, so that the terminal performs positioning according to the transmitted positioning mode. In an example, the LMF obtains the positioning mode, and transmits the positioning mode to the base station, so that the base station performs positioning according to the transmitted positioning mode.

Fig. 4 is a flow chart of another positioning mode acquisition method provided by an embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to Figure 4, the method provided by the embodiment of the present application includes the following steps:

Step 410, determine a positioning mode according to the positioning result of the first positioning mode and the first reference value.

Wherein, the positioning result may be the result of the positioning of the device based on the first positioning mode, and the positioning result may reflect the state of positioning of the device according to the first positioning mode, and the first reference value may be a standard physical quantity used to measure the size of the positioning error , the first reference value may be a critical value of a physical quantity of a positioning error, and the first reference value may specifically be a distance value, a time value or a power value, a position coordinate value, and the like.

In the embodiment of this application, the positioning result generated by the device according to the first positioning mode can be obtained, the positioning result can be compared with the first reference value, and whether the first positioning mode should continue to be determined as the positioning mode can be determined based on the comparison result . For example, if the positioning result is smaller than the first reference value, it is determined that the positioning mode is the first positioning mode; otherwise, it is determined that the positioning mode is the second positioning mode.

Step 420, perform positioning according to the positioning mode.

Fig. 5 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to FIG. 5, the method provided in the embodiment of the present application specifically includes the following steps:

Step 510: Determine a positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and the first reference value.

In this embodiment of the application, the device can perform positioning based on the first positioning mode and the second positioning mode, and the device can obtain the positioning results in the first positioning mode and the positioning results in the second positioning mode, and can determine For the difference between the above two positioning results and the first reference value, the mode corresponding to the positioning result with the smallest difference may be selected as the positioning mode used for device positioning.

Step 520, perform positioning according to the positioning mode.

Fig. 6 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to FIG. 6, the method provided in the embodiment of the present application specifically includes the following steps:

Step 610, determine the positioning mode according to the capability of the terminal.

The terminal capability may be the communication capability of the terminal. For example, the terminal capability may include whether it has AI positioning capability or whether it supports AI computing capability, etc. The terminal capability may reflect whether the terminal supports the first positioning mode.

Specifically, the device may determine the positioning mode according to the AI positioning capability of the terminal. For example, when the terminal supports the first positioning mode, the device may determine the positioning mode as the first positioning mode. For another example, when the terminal does not support the first positioning mode, the device may determine the positioning mode as the second positioning mode.

Step 620, perform positioning according to the positioning mode.

Fig. 7 is a flow chart of another positioning mode acquisition method provided by the embodiment of the present application. The embodiment of the present application is based on the embodiment of the above application. Referring to FIG. 7, the method provided in the embodiment of the present application specifically includes the following steps:

Step 710, determine a positioning mode according to the channel line-of-sight information.

Wherein, the channel line-of-sight information may be a line-of-sight or non-line-of-sight indication value, and the channel line-of-sight information may reflect the blocking state of the wireless communication, that is, whether there is a line-of-sight between the positioning device and the terminal. The channel line-of-sight information may include one or a group of status indication values, and each status indication value may be 0 or 1, or a value between [0, 1], such as 0, 0.1, 0.2, 0.3, ..., 1 one of the. Each state indication value is used to measure the LOS or NLOS situation corresponding to a base station or a beam or a reference signal resource set.

Specifically, the device can determine the positioning mode as the first positioning mode or the second positioning mode according to the channel line-of-sight information. For example, if the channel line-of-sight information indicates that there are at least three LOS base stations, the second positioning mode can be used; otherwise Use the first positioning mode.

Step 720, perform positioning according to the positioning mode.

Further, on the basis of the foregoing application embodiments, the first reference value is determined according to received signaling.

Wherein, the received signaling may be the signaling received by the device, for example, it may be the first reference value indication signaling, which may indicate the value of the first reference value, and the received signaling may be high-layer signaling and/or physical layer signaling make.

In this embodiment of the present application, the first reference value may be determined by the first reference value indicating signaling received by the device, and the first reference value indicating signaling may be high layer signaling and/or physical layer signaling. In some embodiments, the high-level signaling includes radio resource control (Radio Resource Control, RRC) signaling, media control-control element (Media Access Control control element, MAC CE) signaling, LTE protocol positioning (LTE Positioning Protocol, LPP ) signaling, etc., where the NR positioning protocol may also be called LPP.

Further, on the basis of the foregoing application embodiments, the first reference value is determined according to a default configuration.

In this embodiment of the present application, the device may determine the first reference value according to the default configuration. The default configuration may be located locally on the device or at a node that has a communication relationship with the device. For example, if the device is a terminal, the default configuration may be located at the base station, and the base station may locate The default configuration can be sent to the terminal before. Another example is that the device is a terminal. The default configuration can be located in the LMF. The LMF can deliver the default configuration to the terminal before positioning. Another example is that the device is a base station. The default configuration can be located in the LMF. The LMF can send the default configuration to the base station before positioning.

Further, on the basis of the foregoing application embodiments, the first reference value is determined according to historical positioning data.

Wherein, the historical positioning data may be a positioning result of a past period of time, and the historical positioning data may represent a positioning effect of a device within a period of time.

Specifically, the first reference value can be determined by processing the historical positioning data, for example, the average value or variance of the historical positioning data can be used as the first reference value, or the value obtained by filtering the historical positioning data can be used as the first reference value.

Further, on the basis of the foregoing application embodiments, the first reference value includes at least one of the following: absolute position coordinates, relative position coordinates, angle information, arrival time information, and received power information.

In this embodiment of the present application, the first reference value may be one or more of absolute position coordinates, relative position coordinates, angle information, arrival time information, and received power information.

Further, on the basis of the foregoing application embodiments, the method further includes: feeding back position parameter information corresponding to the positioning mode.

In the embodiment of the present application, the device may also transmit the location parameter information used to obtain the positioning mode to other nodes, and the other nodes may perform positioning or determine the positioning mode based on the location parameter information.

FIG. 8 is a schematic diagram of a wireless network positioning architecture provided by an embodiment of the present application. Referring to Fig. 8, the wireless communication network may include a terminal, a base station and a core network. In some embodiments, a terminal may be a cellular phone, a cordless phone, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a Wearable devices, or 5th Generation Mobile Communication Technology (5th Generation Mobile Communication Technology, 5G) network or terminal equipment in the future 5G network, medical equipment with positioning function, unmanned aerial vehicle, machine equipment with positioning function, etc., this The embodiment does not limit this.

In some embodiments, the base station may be an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), Long Term Evolution advanced (LTE-A), new wireless ( The 5G base station equipment represented by New Radio (NR) air interface, or the base station in the future communication system, etc., the base station can include various macro base stations, micro base stations, home base stations, remote wireless, routers, Bluetooth, positioning auxiliary equipment, positioning devices , positioning signal sending point, or various network side devices such as primary cell and secondary cell.

In some embodiments, a core network is included, and the core network includes a location management function (Location Management Function, LMF), wherein the LMF can be responsible for allocation of positioning pilots, positioning calculations, management of positioning base station lists, and positioning-related parameter management. Resource allocation, positioning-related signaling transmission and response, etc. In an example, the LMF may be located in the core network. In an example, the LMF is located in a base station with a positioning function. In an example, the LMF is located in an independent device for positioning.

In the embodiment of the present application, the distance appearing in the positioning method can represent at least one of the following: the absolute value of the difference between two scalars, or the square of the absolute value of the difference between two scalars, the norm of the difference between two vectors, and the two The square of the norm of the difference of vectors, the norm of the difference of two matrices, the square of the norm of the difference of two matrices. Of course, any other physical definition used to measure the similarity or difference between two scalars or vectors or matrices may also be used.

In some examples, location parameter information includes but is not limited to at least one of the following: Reference Signal Time Difference (Reference Signal Time Difference, RSTD), relative time of arrival (Relative Time Of Arrival, RTOA), angle of arrival (Angle of Arrival, AoA), Angle of Departure (AOD), receiving and sending time difference (Rx-Tx time difference), sending and receiving time difference (Tx-Rx time difference), reference signal received power (Reference Signal Received Power), multi-path information, increasing path number, increase the relative delay of the path, increase the power of the multipath, increase the time domain response of the multipath, and increase the real part and the imaginary part of the time domain response of the multipath, wherein the receiving and sending time difference includes the receiving and sending time difference of the base station side (gNB Rx-Tx time difference) and terminal side receiving and sending time difference (UE Rx-Tx time difference), when the angle information includes azimuth and elevation angle, the arrival angle includes the arrival zenith angle ZOA (Zenith angle Of Arrival) and arrival azimuth (Azimuth angle Of Departure, AOD), the departure angle includes ZOD (Zenith angle Of Departure) and departure azimuth (Azimuth angle Of Departure, AOA). In one example, the location parameter information is divided into downlink location parameter information and uplink location parameter information, wherein the downlink location parameter information includes but not limited to at least one of the following: TDOA, RSTD, AOD, ZOD, UE Rx- Tx time difference, increase the number of paths, increase the relative delay of the paths, increase the power of multipath, increase the time domain response of multipath, increase the real part and imaginary part of the time domain response of multipath, where the path here is Multipath corresponding to the downlink channel. Uplink location parameter information includes but is not limited to at least one of the following: RTOA, RSTD, AOA, ZOA, gNB Rx-Tx time difference, increasing the number of paths, increasing the relative delay of paths, increasing multipath power, increasing multipath The time domain response of the multipath increases the real part and the imaginary part of the time domain response, where the path here is the multipath corresponding to the uplink channel.

In some embodiments, the multipath information includes but is not limited to at least one of the following: the path with the strongest power, the first path, the N path with the strongest power, the time and/or RSRP corresponding to the N path with the strongest power, and the time window N path, the time and/or RSRP corresponding to the N path in the time window, the N path greater than the threshold, the time and/or RSRP corresponding to the N path greater than the threshold, the line-of-sight indicator (LoS/NLoS indicator) .

In some embodiments, high-level signaling includes but not limited to radio resource control (Radio Resource Control, RRC), media control-control element (Media Access Control control element, MAC CE), LPP (LTE Positioning Protocol) high-level signaling, NRPPa (NR Positioning Protocol A) high-level signaling, LPPa (LTE Positioning Protocol A) high-level signaling, among which LPP is also used in NR positioning protocol. In some examples, as shown in Figure 8, RRC and MAC-CE are used for the signaling transmission between the terminal and the base station, LPP is used for the signaling transmission between the LMF and the terminal, and NRPPa or LPPa is used for the signaling between the LMF and the base station signaling transmission. In addition, physical layer signaling can also be transmitted between the base station and the terminal. For example, the downlink transmits physical layer signaling on the Physical Downlink Control Channel (PDCCH), and the uplink transmits physical layer signaling on the Physical Uplink Control Channel (PDCCH). CHannel, PUCCH) transmits physical layer signaling. In one example, the LMF needs to transmit signaling or communicate with the base station through the access and mobility management function (Access and Mobility Management Function, AMF) module, and in one example, the LMF needs to communicate with the terminal through the AMF module transmission of signaling or communication.

In some embodiments, the pattern of the reference signal includes but is not limited to a resource element (Resource element, RE) used to transmit the reference signal, RE is the minimum time-frequency resource used to transmit a modulation symbol, including a frequency domain subcarrier and Wireless resource on a symbol, the symbol can be Orthogonal Frequency Division Multiplexing (OFDM) symbol, Orthogonal Frequency Division Multiple Access (FDMA) symbol, single carrier frequency Symbol types such as Single-Carrier Frequency Division Multiple Access (SC-FDMA) symbols, wireless resources composed of multiple symbols and multiple subcarriers constitute a physical resource block, such as 14 symbols with consecutive indexes and 12 subcarriers with consecutive indexes constitute a physical resource block (Physical Resource block, PRB). The reference signals used for positioning include but are not limited to Positioning Reference Signals (PRS) in the downlink, and Sounding Reference Signals (SRS) for positioning in the uplink, of course Other reference signals used for positioning may also be included, which is not limited here.

In some embodiments, the positioning method includes a first positioning mode and a second positioning mode, wherein the first positioning mode mainly refers to a positioning method based on artificial intelligence technology, and the second positioning mode refers to a traditional non-artificial intelligence-based common Positioning methods, including but not limited to DL-TDOA based on TDOA or RSTD, OTDOA, UL RTOA or UL TDOA based on RTOA, angle-based methods DL-AOD, UL-AOA, based on Rx-Tx time difference Round trip time positioning method (Round trip time, RTT), RSRP-based enhanced cell identification (Enhanced cell ID, ECID) and other methods. Among them, artificial intelligence (AI) includes machine learning (Machine learning, ML), deep learning, reinforcement learning, migration learning, deep reinforcement learning, etc. In some embodiments, the artificial intelligence is realized by a neural network, and the neural network includes at least an input layer, an output layer, and at least one hidden layer, wherein each layer of the neural network includes but is not limited to using a fully connected layer, a dense layer, and a convolutional layer. , at least one of transposed convolutional layer, direct connection layer, activation function, normalization layer, pooling layer, etc. In some embodiments, each layer of the neural network may include a sub-neural network, such as a residual network, a dense network, a recurrent network, and the like.

In some embodiments, position coordinate information is included, and the position coordinate information includes but is not limited to one of the following: absolute physical coordinates (x, y, z) or (x, y), absolute polar coordinates (r, a, b ) or (r, a), relative physical coordinates (x', y', z') or (x', y'), relative polar coordinates (r', a', b') or (r', a '), positioning related parameters, relative distance, distance. Wherein, x, y, and z are real numbers, r is a real number greater than 0, and a, b are azimuth angles or elevation angles. x', y', z' are real numbers, which are offsets relative to a reference position value, r' is a real number greater than 0, a', b' are azimuth or elevation angles, and are also offsets relative to a reference position place.

In some embodiments, positioning by the base station, the terminal, or the LMF refers to acquiring position coordinate information or position parameter information corresponding to the terminal to be positioned.

In some embodiments, a first reference value is included, and the first reference value includes but is not limited to at least one specific value of location coordinate information, such as absolute physical coordinates (x0, y0, z) or (x0, y0) , absolute polar coordinates (r0, a0, b0) or (r0, a0), relative physical coordinates (x0', y0', z') or (x0', y0'), relative polar coordinates (r0', a0' , b0') or (r0', a0'), where x0, y0, z0 are real numbers, r0 is a real number greater than 0, and a0, b0 are azimuth or elevation angles. x0', y0', z0' are real numbers, which are offsets relative to a reference position value, r0' is a real number greater than 0, a0', b0' are azimuth or elevation angles, and are also offsets relative to a reference position place. Specific values of positioning related parameters, such as TOA0, RSTD0, AOA0, DOA0, RSRP0, relative distance d0, etc.

In an exemplary embodiment, it is taken that the terminal itself has a positioning function as an example. The communication system includes at least one terminal, N base stations for positioning and a location management function LMF, where N is a positive integer greater than or equal to 1, such as 3, 4, 5 and other integers, and the N base stations can be of the same type base stations, or different types of base stations. The terminal has the ability to calculate position coordinate information, and can perform self-positioning according to the positioning reference signals issued by the N base stations, that is, the terminal can obtain position information, such as absolute coordinates or relative coordinates. In an example, the terminal obtains the base station list for positioning and the reference signal configuration information for positioning by receiving the LPP high-level signaling sent by the LMF. Here, the LPP high-level signaling includes but not limited to the LPP high-level signaling ProvideAssistanceData. The terminal determines the positioning mode according to the positioning result of the first positioning mode and the first reference value. The terminal receives positioning reference signals of N positioning base stations, such as PRS, and calculates a channel matrix H according to the received N positioning reference signals, where H is a matrix of L*K*C, and L is L selected for positioning. Base station, K is the K sampling points (or K paths) selected on the time domain channel from each of the L base stations used for positioning to the terminal or K subcarriers selected on the frequency domain channel, and C is the channel The number is a positive integer greater than 1, and each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H is It can be converted as needed, not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel. The terminal inputs H into the artificial intelligence module used for positioning, and outputs terminal position information Y, which is the output of the AI positioning method corresponding to the first positioning mode. The terminal obtains the first reference value Y0, compares the distance D between Y and Y0, and if the D is less than the configured threshold value D0, uses the first positioning mode for positioning, otherwise uses the second positioning mode for positioning, such as using DL- At least one of TDOA, DL-AOD, ECID, RTT, etc. for positioning. In an example, the Y is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y is a relative physical coordinate or a relative polar coordinate, and the first reference value is a reference value of a relative physical coordinate or a relative polar coordinate, such as two positioning points of the terminal (such as different antennas, different robot arms, Different positioning components) position difference. In an example, the Y is the transmission time or distance from the base station (such as the serving base station, the primary base station, or at least one positioning base station) to the terminal, and the Y0 is a reference value of the transmission time or distance from the base station to the terminal. Among them, the Y0 is obtained according to the RRC or MAC CE of the receiving base station, or according to the LPP protocol high-level signaling of the receiving LMF, such as the cooperation data AssistanceData, or the value configured in the background of the terminal, or the average value of the data based on the historical positioning of the terminal. The value obtained, or the value obtained by the terminal through filtering historical positioning data.

The terminal feeds back the positioning mode selection result to the base station or the LMF. In an example, the terminal feeds back corresponding position parameter information to the base station or LMF according to the positioning mode. In one example, for the second positioning mode, the terminal feeds back the downlink location parameter information. In one example, the terminal feeds back the channel matrix corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high-level signaling, and the H The overall coding feedback may also be performed on the part of H corresponding to each base station, for example, the information of one column or one row of H corresponding to each base station is fed back.

In another exemplary embodiment, the terminal itself has a positioning function. The system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can be of the same type or of different types. The terminal has position calculation capability. Self-positioning can be performed according to the positioning reference signals issued by the N base stations, that is, the terminal can obtain position information, such as absolute coordinates or relative coordinates. In an example, the terminal obtains the base station list for positioning and the reference signal configuration information for positioning by receiving the LPP high-level signaling sent by the LMF. Here, the LPP high-level signaling includes but not limited to the LPP high-level signaling ProvideAssistanceData. The terminal determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and the first reference value. The terminal receives positioning reference signals of N positioning base stations, such as PRS, and calculates a channel matrix H according to the received N positioning reference signals, where H is a matrix of L*K*C, and L is L selected for positioning. Base station, K is the K sampling points (or K paths) selected on the time domain channel from each of the L base stations used for positioning to the terminal or K subcarriers selected on the frequency domain channel, and C is the channel The number is a positive integer greater than 1, and each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H is It can be converted as needed, not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel. The terminal inputs H into the artificial intelligence module used for positioning, and outputs terminal position information Y1, which is the output of the AI positioning method corresponding to the first positioning mode. In an example, the terminal inputs all or part of the H into a positioning module corresponding to the second positioning mode to output position information Y2. In an example, the terminal inputs the position parameter information calculated according to the PRS into the positioning module corresponding to the second positioning mode, and outputs position information Y2, where the position parameter information is downlink position parameter information. The terminal obtains the first reference value Y0, calculates the distance D1 between Y1 and Y0, and calculates the distance D2 between Y2 and Y0. If D1 is smaller than D2, use the first positioning mode for positioning, otherwise use the second positioning mode for positioning, such as using DL -At least one of TDOA, DL-AOD, ECID, RTT, etc. for positioning. In one example, the Y1 or Y2 is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y1 or Y2 are relative physical coordinates or relative polar coordinates, and the first reference value is a reference value of relative physical coordinates or relative polar coordinates, such as two positioning points of the terminal (such as different antennas, different machines arm, different positioning components) position difference. In an example, the Y1 or Y2 is the transmission time or distance from the base station (such as the serving base station, the master base station, or at least one positioning base station) to the terminal, and the Y0 is a reference to the transmission time or distance from the base station to the terminal value. Among them, the Y0 is obtained according to the RRC or MAC CE of the receiving base station, or according to the LPP protocol high-level signaling of the receiving LMF, such as the cooperation data AssistanceData, or the value configured in the background of the terminal, or the average value of the data based on the historical positioning of the terminal. The value obtained, or the value obtained by the terminal through filtering historical positioning data.

The terminal feeds back the positioning mode selection result to the base station or the LMF. In an example, the terminal feeds back corresponding position parameter information to the base station or LMF according to the positioning mode. In one example, for the second positioning mode, the terminal feeds back the downlink location parameter information. In one example, the terminal feeds back the channel matrix corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high-level signaling, and the H The overall coding feedback may also be performed on the part of H corresponding to each base station, for example, the information of one column or one row of H corresponding to each base station is fed back.

In an exemplary embodiment, the system includes at least one terminal and N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations may be the same type of base station, Different types of base stations are also possible. The terminal has position calculation capability. Self-positioning can be performed according to the positioning reference signals issued by the N base stations, that is, the terminal can obtain position information, such as absolute coordinates or relative coordinates. In an example, the terminal obtains the base station list used for positioning and the reference signal configuration information used for positioning by receiving the LPP high layer signaling sent by the LMF. In one example, the terminal selects the positioning mode according to the terminal positioning capability (or terminal capability). If the terminal positioning capability does not support the first positioning mode, the terminal uses the second positioning mode for positioning, otherwise the terminal uses the positioning result of the first positioning mode and the first reference value to determine the positioning mode, or the terminal determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and the first reference value. In one example, the terminal performs positioning mode selection according to the line-of-sight non-line-of-sight indicator value LOS/NLOS indicator. For example, if at least L1 LOS/NLOS indicators are 1 or greater than a certain threshold value, the second positioning mode is used for positioning, otherwise The terminal determines the positioning mode according to the positioning result of the first positioning mode and the first reference value, or the terminal determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode and the first reference value, and L1 is greater than or equal to 1 an integer of .

The terminal feeds back the positioning mode selection result to the base station or the LMF. In an example, the terminal feeds back corresponding position parameter information to the base station or LMF according to the positioning mode, and the base station or LMF performs positioning according to the received position parameter information. In one example, for the second positioning mode, the terminal feeds back the downlink location parameter information. In one example, the terminal feeds back the channel matrix corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high-level signaling, and the H The overall coding feedback may also be performed on the part of H corresponding to each base station, for example, the information of one column or one row of H corresponding to each base station is fed back.

In an exemplary embodiment, the terminal assists in positioning, and the wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can It may be the same type of base station, or may be different types of base stations. The terminal does not have positioning capability, but can feed back location parameter information to the base station or LMF according to LPP high layer signaling. In an example, the location parameter information is downlink location parameter information. In an example, the LPP high-level signaling for feeding back location parameter information is ProvideLocationInformation-x, where x represents version information, such as 10, 11, 12, 13, 14, 15, 16, 17, 18 and other integers greater than 0, where The positioning mode is determined according to the positioning result of the first positioning mode and the first reference value. In an example, the terminal obtains the base station list used for positioning and the reference signal configuration information used for positioning by receiving the LPP high layer signaling sent by the LMF. The terminal receives positioning reference signals of N positioning base stations, such as PRS, and calculates a channel matrix H according to the received N positioning reference signals, where H is a matrix of L*K*C, and L is L selected for positioning. Base station, K is the K sampling points (or K paths) selected on the time domain channel from each of the L base stations used for positioning to the terminal or K subcarriers selected on the frequency domain channel, and C is the channel The number is a positive integer greater than 1, and each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H is It can be converted as needed, not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel. The terminal feeds back the channel matrix H through the LPP high-layer signaling, and can perform overall coding feedback on H, or can feedback the part of H corresponding to each base station, such as feeding back the information of a column or a row of H corresponding to each base station. The LMF obtains the channel matrix information H by receiving the channel matrix H fed back by the LPP high layer signaling. In an example, the LPP high-level signaling for feeding back location parameter information is ProvideLocationInformation-x, where x is version information, and may be an integer greater than 0 or the like.

The LMF inputs the H received through the LPP high-level signaling into the artificial intelligence module for positioning, and outputs the location information Y of the terminal, that is, the output of the AI positioning method corresponding to the first positioning mode. The LMF obtains the first reference value Y0, compares the distance D between Y and Y0, and if the D is less than the configured threshold value D0, uses the first positioning mode for positioning, otherwise uses the second positioning mode for positioning, such as DL- At least one of TDOA, DL-AOD, ECID, RTT, etc. for positioning. In an example, the Y is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y is a relative physical coordinate or a relative polar coordinate, and the first reference value is a reference value of a relative physical coordinate or a relative polar coordinate, such as two positioning points of the terminal (such as different antennas, different robot arms, Different positioning components) position difference. In an example, the Y is the transmission time or distance from the base station (such as the serving base station, the primary base station, or at least one positioning base station) to the terminal, and the Y0 is a reference value of the transmission time or distance from the base station to the terminal. Wherein, the Y0 is configured according to the background of the LMF, or is a value fed back by the receiving terminal, such as one of the following values fed back by the terminal: a value configured by the background of the terminal, or an average value obtained by the terminal according to historical positioning data, Or the value obtained by the terminal through filtering historical positioning data.

The LMF transmits the positioning mode selection result to the terminal through the LPP high layer signaling. The terminal feeds back corresponding location parameter information to the base station or LMF according to the positioning mode selected by the received LPP high-layer signaling, and the base station or LMF performs positioning according to the received location parameter information. In one example, for the second positioning mode, the terminal feeds back the downlink location parameters. In one example, the terminal feeds back the channel matrix corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high layer signaling, and H can be performed The overall coding feedback may also feedback the part of H corresponding to each base station, such as feeding back the information of a column or a row of H corresponding to each base station.

In another exemplary embodiment, the terminal assists in positioning, and the wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and N base stations It can be the same type of base station or different types of base stations. The terminal does not have the positioning capability, and can only assist the base station or the LMF in positioning. For example, it can feed back location parameter information to the LMF or the base station according to LPP high-level signaling. In an example, the location parameter information is downlink location parameter information. In an example, the LPP high-level signaling for feeding back location parameter information is ProvideLocationInformation-x, where x represents version information, such as 10, 11, 12, 13, 14, 15, 16, 17, 18 and other integers greater than 0. In an example, the terminal obtains the base station list used for positioning and the reference signal configuration information used for positioning by receiving the LPP high layer signaling sent by the LMF. The terminal receives positioning reference signals of N positioning base stations, such as PRS, and calculates a channel matrix H according to the received N positioning reference signals, where H is a matrix of L*K*C, and L is L selected for positioning. Base station, K is the K sampling points (or K paths) selected on the time domain channel from each of the L base stations used for positioning to the terminal or K subcarriers selected on the frequency domain channel, and C is the channel The number is a positive integer greater than 1, and each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H is It can be converted as needed, not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel. The terminal feeds back the channel matrix H through the LPP high-layer signaling, and can perform overall coding feedback on H, or can feedback the part of H corresponding to each base station, such as feeding back the information of a column or a row of H corresponding to each base station. The LMF obtains the channel matrix information H by receiving the channel matrix H fed back by the LPP high layer signaling. In an example, the LPP high-level signaling for feeding back location parameter information is ProvideLocationInformation-x, where x is version information, and may be an integer greater than 0 or the like. In another example, the terminal feeds back location parameter information through LPP high layer signaling, where the location parameter information is downlink location parameter information.

The LMF inputs H into the artificial intelligence module for positioning, and outputs terminal position information Y1, which is the output of the AI positioning method corresponding to the first positioning mode. In an example, the LMF inputs all or part of the H into a positioning module corresponding to the second positioning mode to output position information Y2. In an example, the LMF receives the position parameter information fed back by the terminal and inputs it into the positioning module corresponding to the second positioning mode, and outputs the position information Y2. LMF obtains the first reference value Y0, calculates the distance D1 between Y1 and Y0, and calculates the distance D2 between Y2 and Y0. If D1 is smaller than D2, use the first positioning mode for positioning, otherwise use the second positioning mode for positioning, such as DL -At least one of TDOA, DL-AOD, ECID, RTT, etc. for positioning. In one example, the Y1 or Y2 is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y1 or Y2 are relative physical coordinates or relative polar coordinates, and the first reference value is a reference value of relative physical coordinates or relative polar coordinates, such as two positioning points of the terminal (such as different antennas, different machines arm, different positioning components) position difference. In an example, the Y1 or Y2 is the transmission time or distance from the base station (such as the serving base station, the master base station, or at least one positioning base station) to the terminal, and the Y0 is a reference to the transmission time or distance from the base station to the terminal value. Wherein, wherein, the Y0 is configured according to the background of the LMF, or is the value fed back by the receiving terminal, such as one of the following values fed back by the terminal: the value configured by the terminal background, or the average value obtained by the terminal based on historical positioning data value, or the value obtained by the terminal through filtering historical positioning data.

The LMF transmits the positioning mode selection result to the terminal through the LPP high layer signaling. The terminal feeds back corresponding location parameter information to the base station or LMF according to the positioning mode selected by the received LPP high-layer signaling, and the base station or LMF performs positioning according to the received location parameter information. In one example, for the second positioning mode, the terminal feeds back the downlink location parameters. In one example, the terminal feeds back the channel matrix H corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high-level signaling, and the H The overall coding feedback may also be performed on the part of H corresponding to each base station, for example, the information of one column or one row of H corresponding to each base station is fed back.

In another exemplary embodiment, the wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can be of the same type base stations, or different types of base stations. The terminal does not have the positioning capability, and can only assist the base station or the LMF in positioning, for example, it can feed back position parameter information according to the high-layer signaling of the LPP. In one example, the terminal obtains the list of base stations used for positioning and the reference signal configuration information used for positioning by receiving the LPP high-level signaling sent by the LMF, and the terminal receives the PRS corresponding to the N base stations and feeds back position parameter information or channel matrix H . In one example, the LMF selects a positioning mode based on the terminal positioning capability fed back by the terminal. If the terminal positioning capability does not support the first positioning mode, the LMF uses the second positioning mode for positioning; otherwise, the LMF uses the positioning result of the first positioning mode and the first positioning mode. The reference value determines the positioning mode, or the LMF determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and the first reference value. In one example, the LMF selects the positioning mode according to the LOS/NLOS indicator received from the terminal. For example, if at least L1 LOS/NLOS indicators are 1 or greater than a certain threshold, the second positioning mode positioning, otherwise the LMF determines the positioning mode according to the positioning result of the first positioning mode and the first reference value, or the LMF determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode and the first reference value, Where L1 is an integer greater than or equal to 1.

The LMF transmits the positioning mode selection result to the terminal through the LPP high-level signaling, and the terminal feeds back the corresponding position parameter information to the base station or the LMF according to the positioning mode selected by the received LPP high-level signaling, and the LMF performs positioning according to the received position parameter information. In an example, for the second positioning mode, the terminal feeds back the downlink position parameters. In one example, the terminal feeds back the channel matrix corresponding to the first positioning mode, and the terminal feeds back the channel matrix H through LPP high-layer signaling, and H can be encoded as a whole Feedback may also be performed on the part of H corresponding to each base station, such as feeding back the information of a column or a row of H corresponding to each base station.

In an exemplary embodiment, the base station assists positioning. The wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can It may be the same type of base station, or may be different types of base stations. The base station does not have the positioning capability, but can feed back location parameter information to the LMF according to NRPPa high-level signaling. In an example, the location parameter information is uplink location parameter information. In an example, the NRPPa high-layer signaling for feeding back location parameter information is a measurement information response MEASUREMENT INITIATION RESPONSE, such as E-CID MEASUREMENT INITIATION RESPONSE. In an example, the NRPPa high-level signaling for feeding back location parameter information is information response INITIATION RESPONSE, such as OTDOA MEASUREMENT INITIATION RESPONSE. In an example, in an example, the NRPPa high-level signaling for feeding back location parameter information is a measurement result Measurement Result or an information element (Information element, IE) including the Measurement Result. In an example, the base station obtains the terminal to be positioned and the reference signal configuration information used for positioning by receiving the NRPPa high layer signaling sent by the LMF. The i-th base station among the N base stations receives the positioning reference signal sent by the terminal, such as SRS, and calculates the channel matrix Hi according to the received positioning reference signal, where Hi is a matrix of K*C, and K is the N base stations used for positioning K sampling points (or K paths) selected on the time domain channel from each base station to the terminal or K subcarriers selected on the frequency domain channel, C is the number of channels, which is a positive integer greater than 1, Hi’s Each element is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1]. The LMF receives the Hi of the N base stations, i=1,...,N, and constructs a matrix H from them, where H is a matrix of L*K*C, L is the L base stations selected for positioning, and K K sampling points (or K paths) selected on the time-domain channel from each of the L base stations used for positioning to the terminal or K sub-carriers selected on the frequency-domain channel, C is the number of channels, and is A positive integer greater than 1, each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H can be as required The conversion is not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel.

The LMF inputs the H received through the LPP high-level signaling into the artificial intelligence module for positioning, and outputs the location information Y of the terminal, that is, the output of the AI positioning method corresponding to the first positioning mode. LMF obtains the first reference value Y0, compares the distance D between Y and Y0, if the D is less than the configured threshold value D0, uses the first positioning mode for positioning, otherwise uses the second positioning mode for positioning, such as using UL- At least one of RTOA, UL-TDOA, UL-AOA, ECID, RTT, etc. for positioning. In an example, the Y is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y is a relative physical coordinate or a relative polar coordinate, and the first reference value is a reference value of a relative physical coordinate or a relative polar coordinate, such as two positioning points of the terminal (such as different antennas, different robot arms, Different positioning components) position difference. In an example, the Y is the transmission time or distance from the base station (such as the serving base station, the primary base station, or at least one positioning base station) to the terminal, and the Y0 is a reference value of the transmission time or distance from the base station to the terminal. Wherein, the Y0 is configured according to the background of the LMF, or is a value fed back by the receiving terminal, such as one of the following values fed back by the terminal: a value configured by the background of the terminal, or an average value obtained by the terminal according to historical positioning data, Or the value obtained by the terminal through filtering historical positioning data.

The LMF transmits the positioning mode selection result to the base station through the LPP high-level signaling, and the base station feeds back the corresponding position parameter information to the LMF according to the positioning mode selected by the received NRPPa high-level signaling, and the LMF performs positioning according to the received position parameter information. In an example , for the second positioning mode, the base station feeds back uplink position parameter information, and in one example, the base station feeds back a channel matrix corresponding to the first positioning mode.

In an exemplary embodiment, the wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can be of the same type The base station may also be different types of base stations. The base station does not have the positioning capability, but can feed back location parameter information to the LMF according to NRPPa high-level signaling. In an example, the location parameter information is uplink location parameter information. In an example, the NRPPa high-layer signaling for feeding back location parameter information is a measurement information response MEASUREMENT INITIATION RESPONSE, such as E-CID MEASUREMENT INITIATION RESPONSE. In an example, the NRPPa high-level signaling for feeding back location parameter information is information response INITIATION RESPONSE, such as OTDOA MEASUREMENT INITIATION RESPONSE. In an example, in an example, the NRPPa high-level signaling for feeding back location parameter information is a measurement result Measurement Result or an information element (Information element, IE) including the Measurement Result. In an example, the base station obtains the terminal to be positioned and the reference signal configuration information used for positioning by receiving the NRPPa high layer signaling sent by the LMF. The i-th base station among the N base stations receives the positioning reference signal sent by the terminal, such as SRS, and calculates the channel matrix Hi according to the received positioning reference signal, where Hi is a matrix of K*C, and K is the N base stations used for positioning K sampling points (or K paths) selected on the time domain channel from each base station to the terminal or K subcarriers selected on the frequency domain channel, C is the number of channels, which is a positive integer greater than 1, Hi’s Each element is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1]. The LMF receives the Hi of the N base stations, i=1,...,N, and constructs a matrix H from them, where H is a matrix of L*K*C, L is the L base stations selected for positioning, and K K sampling points (or K paths) selected on the time-domain channel from each of the L base stations used for positioning to the terminal or K sub-carriers selected on the frequency-domain channel, C is the number of channels, and is A positive integer greater than 1, each element of H is a real number, preferably a normalized real number, such as a real number in the interval [-1, 1], [0, 1], where the dimension order of H can be as required The conversion is not limited to the first dimension being the base station, the second dimension being the sampling point, and the third dimension being the channel. In another example, the base station feeds back the uplink location parameter information through NRPPa high layer signaling.

The LMF inputs H into the artificial intelligence module for positioning, and outputs terminal position information Y1, which is the output of the AI positioning method corresponding to the first positioning mode. In an example, the LMF inputs all or part of the H into a positioning module corresponding to the second positioning mode to output position information Y2. In an example, the LMF receives the uplink position parameter information fed back by the base station and inputs it into the positioning module corresponding to the second positioning mode, and outputs the position information Y2. LMF obtains the first reference value Y0, calculates the distance D1 between Y1 and Y0, and calculates the distance D2 between Y2 and Y0. If D1 is smaller than D2, use the first positioning mode for positioning, otherwise use the second positioning mode for positioning, such as UL - At least one of RTOA, UL-TDOA, UL-AOA, ECID, RTT, etc. for positioning. In one example, the Y1 or Y2 is an absolute physical coordinate or an absolute polar coordinate, and the first reference value Y0 is a reference value of an absolute physical coordinate or an absolute polar coordinate. In an example, the Y1 or Y2 are relative physical coordinates or relative polar coordinates, and the first reference value is a reference value of relative physical coordinates or relative polar coordinates, such as two positioning points of the terminal (such as different antennas, different machines arm, different positioning components) position difference. In an example, the Y1 or Y2 is the transmission time or distance from the base station (such as the serving base station, the master base station, or at least one positioning base station) to the terminal, and the Y0 is a reference to the transmission time or distance from the base station to the terminal value. Wherein, wherein, the Y0 is configured according to the background of the LMF, or is the value fed back by the receiving terminal, such as one of the following values fed back by the terminal: the value configured by the terminal background, or the average value obtained by the terminal based on historical positioning data value, or the value obtained by the terminal through filtering historical positioning data.

The LMF transmits the positioning mode selection result to the base station through the LPP high-level signaling, and the base station feeds back the corresponding position parameter information to the LMF according to the positioning mode selected by the received NRPPa high-level signaling. In one example, for the second positioning mode, the base station feeds back the uplink The position parameter, in an example, the base station feeds back the channel matrix corresponding to the first positioning mode.

In an exemplary embodiment, the wireless communication system includes at least one terminal, N base stations for positioning, and a location management function LMF, where N is a positive integer greater than or equal to 1, and the N base stations can be of the same type The base station may also be different types of base stations. The base station does not have the positioning capability, but can feed back location parameter information to the LMF according to NRPPa high-level signaling. In an example, the location parameter information is uplink location parameter information. In one example, the LMF selects a positioning mode based on the terminal positioning capability fed back by the base station. If the terminal positioning capability does not support the first positioning mode, the second positioning mode is used for positioning; otherwise, the LMF uses the positioning result of the first positioning mode and the first positioning mode. The reference value determines the positioning mode, or the LMF determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and the first reference value. In one example, the LMF selects the positioning mode according to the received LOS/NLOS indicator value fed back by the base station. For example, if at least L1 LOS/NLOS indicators are 1 or greater than a certain threshold value, the second positioning mode positioning, otherwise the LMF determines the positioning mode according to the positioning result of the first positioning mode and the first reference value, or the LMF determines the positioning mode according to the positioning result of the first positioning mode, the positioning result of the second positioning mode and the first reference value, Where L1 is a positive integer.

The LMF transmits the positioning mode selection result to the base station through the LPP high-level signaling, and the base station feeds back the corresponding position parameter information to the LMF according to the positioning mode selected by the received NRPPa high-level signaling, and the LMF performs positioning according to the received position parameter information. In an example , for the second positioning mode, the base station feeds back uplink position parameters, and in one example, the base station feeds back a channel matrix corresponding to the first positioning mode.

Fig. 9 is a schematic structural diagram of an apparatus for acquiring a positioning mode provided by an embodiment of the present application. The positioning mode acquisition method provided by any embodiment of the present application can be executed, and has corresponding functional modules and beneficial effects for executing the method. The apparatus may be implemented by software and/or hardware, and specifically includes: a mode determination module 801 and a positioning execution module 802 .

The mode determination module 801 is configured to acquire a positioning mode, wherein the positioning mode includes at least a first positioning mode and a second positioning mode.

The positioning execution module 802 is configured to perform positioning according to the positioning mode.

In this embodiment of the present application, the positioning mode is acquired by the mode determination module. The positioning mode may include the first positioning mode or the second positioning mode. The positioning execution module may perform positioning according to the positioning model. In the embodiment of the present application, the positioning mode is determined before positioning, which can be Prevent the problem of large positioning accuracy errors caused by fixed positioning modes, and enhance the reliability of positioning services.

Further, on the basis of the above-mentioned application embodiments, the positioning mode acquisition device further includes:

A mode sending module, configured to feed back the positioning mode, so that other nodes perform positioning according to the positioning mode.

Further, on the basis of the foregoing application embodiments, the mode determination module 801 is specifically configured to: receive a positioning mode, and determine the positioning mode according to the received positioning mode.

Further, on the basis of the above-mentioned application embodiments, the mode determining module 801 is further specifically configured to: determine the positioning mode according to the positioning result of the first positioning mode and the first reference value.

Further, on the basis of the above-mentioned application embodiments, the mode determination module 801 is also specifically configured to: determine the positioning mode according to the positioning results of the first positioning mode and the second positioning mode and the first reference value.

Further, on the basis of the above-mentioned application embodiments, the mode determination module 801 is also specifically configured to: determine the positioning mode according to the terminal capability.

Further, on the basis of the foregoing application embodiments, the mode determining module 801 is also specifically configured to: determine the positioning mode according to channel line-of-sight information.

Further, on the basis of the above-mentioned application embodiments, the first reference value in the positioning mode acquisition device is determined according to the received signaling.

Further, on the basis of the above-mentioned application embodiments, the first reference value in the positioning mode acquisition device is determined according to the default configuration.

Further, on the basis of the above-mentioned application embodiments, the first reference value in the positioning mode acquisition device is determined according to historical positioning data.

Further, on the basis of the above-mentioned application embodiments, the first reference value in the positioning mode acquisition device includes at least one of the following: absolute position coordinates, relative position coordinates, angle information, arrival time information, and received power information.

Further, on the basis of the above-mentioned application embodiments, the positioning mode acquisition device further includes: a channel state module, configured to feed back position parameter information corresponding to the positioning mode.

FIG. 10 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic equipment includes a processor 80, a memory 81, an input device 82 and an output device 83; the number of processors 80 in the electronic equipment can be one or more, and one processor 80 is taken as an example in Fig. 10; the processor in the electronic equipment 80, the memory 81, the input device 82 and the output device 83 may be connected through a bus or in other ways. In FIG. 10, connection through a bus is taken as an example.

As a computer-readable storage medium, the memory 81 can be used to store software programs, computer-executable programs and modules, such as modules corresponding to the positioning mode acquisition device in the embodiment of the present application (mode determination module 801 and positioning execution module 802). The processor 80 executes various functional applications and data processing of the electronic device by running the software programs, instructions and modules stored in the memory 81 , that is, realizes the above-mentioned positioning mode acquisition method.

The memory 81 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the electronic device, and the like. In addition, the memory 81 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory 81 may further include a memory that is remotely located relative to the processor 80, and these remote memories may be connected to the electronic device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 82 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the electronic device. The output device 83 may include a display device such as a display screen.

The embodiment of the present application also provides a storage medium containing computer-executable instructions, the computer-executable instructions are used to execute a positioning mode acquisition method when executed by a computer processor, and the method includes:

Acquire a positioning mode, wherein the positioning mode includes at least a first positioning mode and a second positioning mode; perform positioning according to the positioning mode.

Through the above description about the implementation, those skilled in the art can clearly understand that the present application can be realized by means of software and necessary general-purpose hardware, and of course it can also be realized by hardware, but in many cases the former is a better implementation . Based on this understanding, the essence of the technical solution of this application or the part that contributes to the related technology can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as computer floppy disks, Read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disc, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in various embodiments of the present application.

It is worth noting that in the above-mentioned embodiment of the device, the included units and modules are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, each functional unit The specific names are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application.

Those of ordinary skill in the art can understand that all or some of the steps in the method disclosed above, the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.

In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit . Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

Claims (14)

A method for obtaining a positioning mode, applied to a device, comprising: A positioning mode is acquired, wherein the positioning mode includes at least a first positioning mode and a second positioning mode. Positioning is performed according to the positioning mode. The method according to claim 1, wherein said obtaining the positioning mode comprises: Receive location patterns from other devices. The method according to claim 1, wherein said obtaining the positioning mode comprises: The positioning mode is determined according to a positioning result of the first positioning mode and a first reference value. The method according to claim 1, wherein said obtaining the positioning mode comprises: The positioning mode is determined according to the positioning result of the first positioning mode, the positioning result of the second positioning mode, and a first reference value. The method according to claim 1, wherein said obtaining the positioning mode comprises: The positioning mode is determined according to the capability of the terminal. The method according to claim 1, wherein said obtaining the positioning mode comprises: The positioning mode is determined according to channel line-of-sight information. The method according to claim 3 or 4, wherein the first reference value is determined according to received signaling. The method according to claim 3 or 4, wherein the first reference value is determined according to a default configuration. The method according to claim 3 or 4, wherein the first reference value is determined according to historical positioning data. The method according to claim 3 or 4, wherein the first reference value includes at least one of the following: absolute position coordinates, relative position coordinates, angle information, arrival time information, and received power information. The method according to claim 1, further comprising: The position parameter information corresponding to the positioning mode is fed back. A method for obtaining a positioning mode, applied to a device, comprising: Get positioning mode; Feedback the positioning mode; Wherein, the positioning mode is used to instruct other devices to perform positioning according to the positioning mode. An electronic device comprising: one or more processors; memory for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1-12. A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method according to any one of claims 1-12 is implemented.

Images