Terminal equipment positioning method and network side equipment
By extending multiple TR antennas in the network-side device into a single TR antenna and deploying them in different locations, the problems of high base station deployment cost and difficulty in power control in indoor positioning are solved, and three-dimensional positioning of terminal devices is realized through one device , reducing power consumption and cost.
Patent Information
- Application Number
- CN202310957816.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-31
- Publication Date
- 2025-02-14
AI Technical Summary
In indoor positioning scenarios, the prior art requires the deployment of multiple base stations to achieve three-dimensional positioning of terminal devices, resulting in high cost of base station deployment and difficulty in power control.
By stretching multiple TR antennas in the network-side device, multiple single TR antennas are formed, and these single TR antennas are deployed at different locations in the target positioning scene, the terminal equipment is measured by using these single TR antennas to generate Multiple measurement reports are used to determine the location information of the terminal device.
Three-dimensional positioning of terminal devices is realized through one network-side device, reducing the number of required network-side devices, and reducing power consumption and base station deployment costs.
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Figure CN119450347A_ABST
Abstract
Description
Technical Field
[0001] This document relates to the field of mobile communication technology, and in particular to a terminal device positioning method and network-side equipment. Background Art
[0002] In indoor positioning scenarios where the uplink relative time of arrival (UL RTOA) reported by base stations is used to locate terminal devices, for two-dimensional positioning, measurement reports from three base stations are required, while for three-dimensional positioning, measurement reports from four base stations are required to calculate the location information of the terminal device.
[0003] However, in operating scenarios such as the chemical and steel industries, there are strict requirements on the number and power of base stations deployed indoors for safety reasons. In some office scenarios, such as a conference room with multiple rooms, if you want to locate each room, you need to deploy at least three base stations in each room, which will undoubtedly increase the cost of base station deployment and make power control difficult.
[0004] Therefore, how to reduce the number of network-side devices (such as base stations) required for terminal device positioning is a technical problem that needs to be solved urgently. Summary of the invention
[0005] The embodiments of this specification provide a terminal device positioning method and a network-side device, which are used to solve the problem of how to reduce the number of network-side devices (such as base stations) required for terminal device positioning.
[0006] To solve the above technical problems, the embodiments of this specification are implemented as follows:
[0007] In a first aspect, a terminal device positioning method is provided, which is applied to a network side device, wherein the network side device includes a plurality of remote single TR antennas, the plurality of single TR antennas are connected to a network side device body through a signal feeder, and the plurality of single TR antennas are deployed at different positions in a target positioning scene, and the method includes:
[0008] Measuring the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one measurement of the single TR antenna corresponds to one measurement report, and the measurement report includes a measurement value of a specified parameter used to determine the position of the target terminal;
[0009] The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
[0010] In a second aspect, a terminal device positioning device is provided, which is applied to a network side device, wherein the network side device includes a plurality of remote single TR antennas, wherein the plurality of single TR antennas are connected to a network side device body through a signal feeder, and the plurality of single TR antennas are deployed at different positions in a target positioning scene, wherein the device includes:
[0011] a report generating module, configured to measure the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one measurement of the single TR antenna corresponds to one measurement report, and the measurement report includes a measurement value of a specified parameter used to determine the position of the target terminal;
[0012] The location determination module is used to determine the location information of the target terminal according to the measurement values of the specified parameters in the multiple measurement reports.
[0013] In a third aspect, a network side device is provided, comprising: a plurality of remote single TR antennas, wherein:
[0014] The multiple single TR antennas are connected to the network side device body via a signal feeder;
[0015] The multiple single TR antennas are used to measure the target terminal at different positions in the target positioning scenario, respectively, to obtain multiple measurement reports for the target terminal. One single TR antenna measurement corresponds to one measurement report, and the measurement report contains measurement values of specified parameters used to determine the position of the target terminal.
[0016] In a fourth aspect, an electronic device is provided, including:
[0017] processor;
[0018] a memory for storing instructions executable by the processor;
[0019] The processor is configured to execute the instructions to implement the method as described in the first aspect.
[0020] According to a fifth aspect, a computer-readable storage medium is provided. When instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the method described in the first aspect.
[0021] In an embodiment of the present specification, multiple TR antennas included in a network side device are remotely processed so that the network side device has multiple remote single TR antennas, and these remote multiple single TR antennas are deployed at different locations of the target positioning scene, so that a network side device can obtain multiple measurement reports for the target terminal through the multiple remote single TR antennas, and the location information of the target terminal can be determined based on the measurement values of the specified parameters in these multiple measurement reports. It can be seen that the terminal device positioning solution provided in the embodiment of the present specification does not need to deploy multiple network side devices in the target positioning scene, and the terminal device can be positioned through one network side device, which reduces the number of network side devices required for terminal device positioning, reduces power consumption, and is easier to control power. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0023] Figure 1 It is a schematic diagram of a multi-TR antenna remote design of a network side device provided in an embodiment of this specification.
[0024] Figure 2 It is a flowchart of a terminal device positioning method provided in an embodiment of this specification.
[0025] Figure 3 This is a schematic diagram of a first application scenario (LOS scenario) of a terminal device positioning method provided in an embodiment of this specification.
[0026] Figure 4 It is a schematic diagram of a second application scenario (including a scenario with multiple compartments) of a terminal device positioning method provided in an embodiment of this specification.
[0027] Figure 5A This is an example of a second application scenario (including a scenario with multiple compartments) of a terminal device positioning method provided in an embodiment of this specification.
[0028] Figure 5B It is a discount schematic diagram provided in an embodiment of this specification.
[0029] Figure 6 This is a schematic diagram of a third application scenario (LOS scenario + multiple compartments) of a terminal device positioning method provided in an embodiment of this specification. Figure 1 .
[0030] Figure 7 This is a schematic diagram of a third application scenario (LOS scenario + multiple compartments) of a terminal device positioning method provided in an embodiment of this specification. Figure 2 .
[0031] Figure 8 It is a structural diagram of a network side device provided in an embodiment of this specification.
[0032] Fig. 9 is a schematic diagram of the structure of an electronic device according to an embodiment of the present specification;
[0033] Fig.10 It is a structural schematic diagram of a terminal equipment positioning device according to an embodiment of the present specification. DETAILED DESCRIPTION
[0034] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in one or more embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. According to the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this document.
[0035] The terms "first", "second", etc. in this specification and claims are used to distinguish similar objects, and are not used to describe a particular order or precedence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of this specification can be implemented in an order other than those illustrated or described herein. In addition, "and / or" in this specification and claims means at least one of the connected objects, and the character " / " generally means that the objects associated with each other are in an "or" relationship.
[0036] In order to reduce the number of network-side devices (such as base stations) required for terminal device positioning, this specification proposes a terminal device positioning method and a network-side device, which are described below in conjunction with the accompanying drawings.
[0037] In the present embodiment, the network side device used for terminal device positioning includes multiple antenna ports. Taking the network side device as a 5G base station as an example, the network side device can be a base station including a 4TR antenna or an 8TR antenna. In other words, the antenna model of the network side device required in the present embodiment is NTR, where N is an arbitrary positive integer and TR is the abbreviation of Transmit and Receive.
[0038] like Figure 1As shown, in order to reduce the number of network-side devices (such as base stations) required for terminal device positioning, the embodiments of this specification pull out an antenna panel from each antenna port of the network-side device including the NTR antenna panel as a single TR antenna panel, and the remote single TR antenna is connected to the network-side device body through a signal feeder. That is, the original NTR antenna system is modified into a plurality of single TR antenna systems. In this way, for a network-side device, a remote antenna with N antenna ports can be constructed. A remote single TR antenna is equivalent to a network-side device for measurement, and a measurement report for the terminal device is obtained by measurement, thereby reducing the number of network-side devices required for terminal device positioning and realizing power degradation of network-side devices. This solution of replacing the network-side devices that originally need to be deployed with antennas can also save the deployment cost of the network-side devices required for positioning.
[0039] pass Figure 1 In the antenna remote scheme shown in the figure, a network-side device originally analyzes the detection signal from the target terminal device as a group of measurement reports, which can be expressed as follows:
[0040] trp1:{t=t0,rsrp=d0}
[0041] Wherein, t represents the arrival delay, and rsrp represents the reference signal received power.
[0042] If N groups of single TR antennas are constructed, each group of single antennas is an antenna radiation pattern (Antenna Radiation Pattern, ARP), and independent measurements are performed, so the following four groups of measurement reports can be obtained:
[0043] arp1:{t=t1,rsrp=d1}
[0044] arp2:{t=t2,rsrp=d2}
[0045] arp3:{t=t3,rsrp=d3} ......
[0047] trp N :{t=t N ,rsrp=d N}
[0048] Therefore, the location information of the target terminal can be calculated using N groups of positioning measurement reports of a base station.
[0049] A terminal device positioning method provided in an embodiment of this specification can be used for indoor positioning, for example, positioning based on indoor 5G pico base stations, Bluetooth, and pulse radio (Ultra Wideband, UWB). A terminal device positioning method provided in an embodiment of this specification can also be used for outdoor positioning, for example, positioning based on outdoor 5G macro base stations. That is to say, in an embodiment of this specification, the network side device can be any one of a 5G pico base station, a Bluetooth device, a UWB device, a 5G macro base station and the like.
[0050] In the embodiments of this specification, the network side device is responsible for receiving the detection signal, and is responsible for calculating the arrival delay, arrival angle, and received signal strength of the received detection signal inside the network side device (i.e., the network side device body). The terminal device is responsible for sending the detection signal, and the multiple single TR antennas at a distance are responsible for receiving the same uplink detection measurement signal from the terminal device.
[0051] The arrival delay may include but is not limited to the time advance TA. The received signal strength may include but is not limited to at least one of the reference signal receiving power (RSRP), the received signal strength indication (RSSI), the reference signal received quality (RSRQ) and the signal interference noise ratio (SINR). The detection signal may include but is not limited to one of the uplink sounding reference signal (SRS) and the single-frequency sinusoidal signal.
[0052] exist Figure 1 Based on the network side device shown in the figure, this specification proposes a terminal device positioning method, which can be applied to Figure 1 The network side device shown includes multiple remote single TR antennas, the multiple single TR antennas are connected to the network side device body through signal feeders, and the multiple single TR antennas are deployed at different positions in the target positioning scene, such as Figure 2 As shown, the method may include:
[0053] Step 201, respectively measure the target terminal through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one single TR antenna measurement corresponds to one measurement report, and the measurement report includes the measurement value of the specified parameter used to determine the position of the target terminal.
[0054] Specifically, step 201 may include: receiving the detection signals sent by the target terminal through the multiple single TR antennas respectively; analyzing the detection signals received by the multiple single TR antennas respectively, and generating the multiple measurement reports. The method for the network side device to analyze the received detection signals belongs to the prior art and is not described in detail herein.
[0055] The specified parameters may include but are not limited to at least one of arrival delay, arrival angle and received signal strength.
[0056] Step 202: Determine the location information of the target terminal according to the measurement values of the designated parameters in the multiple measurement reports.
[0057] In the embodiments of this specification, the target positioning scenario is mainly described as an indoor positioning scenario. Specifically, the target positioning scenario may include three situations:
[0058] The first application scenario: a scenario without obstacles, namely, a LOS (Line of Sight) scenario.
[0059] The second application scenario: a scenario including multiple compartments, such as a building with multiple floors, a conference room with multiple rooms, etc. Optionally, the multiple compartments may also include LOS scenarios, that is, the interior of a certain compartment belongs to the LOS scenario, as shown in the third application scenario below. Of course, the multiple compartments may also include compartments of non-LOS scenarios, such as compartments of irregular shapes or with obstacles.
[0060] The third application scenario: the first application scenario + the second application scenario, that is, LOS scenario + multiple compartments.
[0061] It should be noted that those skilled in the art can also expand the layout mode and positioning principle of multiple remote single TR antennas outdoors through the layout mode and positioning principle of multiple remote single TR antennas indoors shown in the embodiments of this specification.
[0062] For different application scenarios, the specified parameters used for positioning may be different, which are described below one by one.
[0063] 1) The first application scenario (LOS scenario)
[0064] This scene is an empty scene with no line of sight obstruction, such as a rectangular empty room. In addition, for non-LOS scenes, that is, for compartments with irregular shapes or obstacles (such as T-shaped, cross-shaped, and square-shaped buildings, stations, airport terminals, etc. with obstacles in the middle), they can be divided into multiple areas (compartments) based on LOS requirements, and then each area is used as a LOS scene.
[0065] In this scenario, the number of single TR antennas is no less than 2.
[0066] In this scenario, a delay-based positioning method may be used, that is, the specified parameters include the arrival delay.
[0067] In this scenario, the deployment principles of a single TR antenna include:
[0068] a. Multiple single TR antennas are deployed at the boundaries of the scene (such as corners) and the target area is ensured to be within the coverage area of the multiple single TR antennas;
[0069] b. The number of multiple remote single TR antennas is greater than 3. When installed, it is ensured that the target users within the coverage area of the multiple single TR antennas can directly see the multiple single TR antennas;
[0070] c. During installation, ensure that multiple single TR antennas are as far away from obstacles as possible, usually 2-3 meters away from obstacles.
[0071] like Figure 3 As shown in the figure, if the target positioning scene is an open, unobstructed rectangular room, a 4TR network-side device can be selected, and the four single TR antennas can be deployed at the four corners of the room, and the four single TR antennas can be kept a certain distance away from the wall.
[0072] Accordingly, step 202 may include: determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measured values of the arrival delays in the multiple measurement reports.
[0073] Since the length of the signal feeder connecting the remote single TR antenna and the network-side device body will affect the arrival delay of the detection signal (the detection signal will also propagate with a certain delay in the signal feeder - the first propagation delay), in order to offset the propagation delay in the signal feeder, the embodiments of this specification propose two solutions.
[0074] Solution 1: The lengths of the signal feeder lines connecting different single TR antennas among the multiple single TR antennas and the network side device body are the same, and the specific length is the signal feeder line length required for the single TR antenna farthest from the network side device body among the multiple single TR antennas.
[0075] In Scheme 1, determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measured values of the arrival delays in the multiple measurement reports may specifically include: determining the location information of the target terminal according to the location information of the multiple single TR antennas, the measured values of the arrival delays in the multiple measurement reports and a delay-based positioning method, wherein the delay-based positioning method includes an uplink arrival time positioning method (Uplink Time Of Arrival, UTOA) or an uplink arrival time difference positioning method (Uplink Time Difference of Arrival, UTDOA).
[0076] It can be understood that by selecting signal feeder lines of the same length, the delay of the detection signal propagating in the signal feeder line can be offset when constructing the UTOA or UTDOA positioning equation, ensuring that the constructed delay difference is the distance delay difference between the target terminal and the two ARPs (single TR antennas).
[0077] In scheme 1, taking the arrival delay as TA as an example, for the detection signal from the target terminal to each single TR antenna, multiple measurement reports equivalent to multiple base stations can be measured by each single TR antenna. The measurement information in these multiple measurement reports can be expressed as:
[0078] Arp0: prru:[x,y,z],
[0079] Arp1:prru′1:[x′1,y′1,z′1],
[0080] Arp2:prru′2:[x′2,y′2,z′2], ...
[0082] Arpi: prru′ i :[x′ i ,y′ i ,z′ i ],
[0083] Among them, prru′ i :[x′ i ,y′ i ,z′ i ] represents the coordinates of the location of the i-th single TR antenna, TA i represents the time advance corresponding to the i-th single TR antenna, represents the time delay of the detection signal propagating in the signal feeder, t iIt represents the propagation delay of the detection signal sent by the target terminal from the target terminal to the i-th single TR antenna, i = 0, 1, 2, ..., N-1.
[0084] Solution 2: The lengths of signal feeder lines connecting different single TR antennas among the multiple single TR antennas and the network-side device body are the same or different.
[0085] In scheme 2, determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measured values of the arrival delays in the multiple measurement reports may specifically include: for any single TR antenna among the multiple single TR antennas, determining the first propagation delay of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna according to the length of the signal feeder between the single TR antenna and the network side device body; and determining the second propagation delay (arrival delay-first propagation delay=second propagation delay) of the detection signal received by the single TR antenna from the target terminal to the single TR antenna according to the measured value of the arrival delay in the measurement report corresponding to the single TR antenna and the first propagation delay; determining the location information of the target terminal according to the location information of the multiple single TR antennas, the second propagation delay corresponding to the multiple single TR antennas, and a delay-based positioning method, wherein the delay-based positioning method includes UTOA or UTDOA.
[0086] In Solution 2, taking the arrival delay as TA as an example, for the detection signal from the target terminal to each single TR antenna, the delay of the detection signal propagating in the signal feeder can be calculated first, and then the received delay can be offset to obtain the delay of the detection signal propagating between the target terminal and Arp (single TR antenna). Solution 2 needs to record the length of the signal feeder corresponding to each single TR antenna during the installation phase, and pass it to the network side device through the interface as a positioning algorithm parameter to calculate the offset delay information. The propagation delay of the detection signal in the signal feeder is calculated by distance - the calculation formula for the first propagation delay is as follows:
[0087]
[0088] Among them, L i is the length of the signal feeder line between the ith single TR antenna and the network-side device body, and c is the speed of light.
[0089] In solution 2, multiple measurement reports equivalent to multiple base stations can be obtained through each single TR antenna. The measurement information in the multiple measurement reports can be expressed as:
[0090] Arp0: prru:[x,y,z],
[0091] Arp1:prru′1:[x′1,y′1,z′1],
[0092] Arp2:prru′2:[x′2,y′2,z′2], ...
[0094] Arpi: prru′ i :[x′ i ,y′ i ,z′ i ],
[0095] Among them, prru′ i :[x′ i ,y′ i ,z′ i ] represents the coordinates of the location of the i-th single TR antenna, TA i represents the time advance corresponding to the i-th single TR antenna, represents the propagation delay of the detection signal in the signal feeder between the i-th single TR antenna and the network-side device body - the first propagation delay, t i It represents the propagation delay of the detection signal sent by the target terminal from the target terminal to the i-th single TR antenna - the second propagation delay, i = 0, 1, 2, ..., N-1.
[0096] After determining the coordinates of the location of each single TR antenna and the propagation delay corresponding to each single TR antenna through the above scheme 1 or scheme 2, assuming that the coordinates of the target terminal are: [X, Y, Z], if UTDOA is used to determine the location of the target terminal, the following solution equation can be constructed:
[0097]
[0098] ......
[0100]
[0101] When the number of multiple remote single TR antennas exceeds 4, at least 3 sets of equations can be constructed by the above method, and the coordinates of the target terminal can be solved by the least squares method: [X, Y, Z], thereby achieving the purpose of positioning the target terminal using one base station.
[0102] The process of using TOA to construct a solution equation can refer to the relevant technology and will not be described in detail in this embodiment of the specification.
[0103] Optionally, in the first application field, the location of the target terminal can also be determined based on the angle-of-arrival (AOA) positioning method, and the corresponding specified parameter includes the angle of arrival. In this case, step 202 may include: determining the location information of the target terminal according to the location information of the multiple single TR antennas, the measured values of the angle of arrival in the multiple measurement reports, and the AOA.
[0104] Similarly, the process of using AOA to construct a solution equation can also refer to the relevant technology, and the embodiments of this specification will not be repeated.
[0105] Optionally, in the first application scenario, the location of the target terminal can also be determined by combining a positioning method based on a delay and a positioning method based on an angle of arrival (AOA). At this time, the specified parameters include an arrival delay and an arrival angle, wherein the location information of the target terminal is determined according to the measured values of the specified parameters in the multiple measurement reports, including:
[0106] The location information of the target terminal is determined based on the location information of the multiple single TR antennas, the measured values of the arrival delay and the arrival angle in the multiple measurement reports, and the uplink arrival time positioning method UTOA and the arrival angle positioning method AOA; or, the location information of the target terminal is determined based on the location information of the multiple single TR antennas, the measured values of the arrival delay and the arrival angle in the multiple measurement reports, and the uplink arrival time difference positioning method UTDOA and the arrival angle positioning method AOA.
[0107] It should be noted that when the delay-based positioning method and the angle-of-arrival (AOA)-based positioning method are used to comprehensively determine the location information of the target terminal, the solution equations for the target terminal coordinates can be constructed based on the arrival delay and the arrival angle respectively, and then the coordinate information of the target terminal can be obtained by jointly solving them. This specification does not elaborate on the embodiments.
[0108] 2) Second application scenario (scenarios involving multiple compartments)
[0109] The second application scenario may be a scenario with multiple compartments, for example, a scenario with multiple rooms or a scenario with multiple floors. In a cross-floor scenario, on the one hand, it becomes more difficult to use signal feeders of the same length to offset the delay, and on the other hand, the accuracy of the delay between intervals is poor, resulting in a large positioning accuracy error. Therefore, in this scenario, a positioning method based on signal reception strength can be used for positioning, which is more accurate.
[0110] In this scenario, at least one single TR antenna is deployed in a compartment, and the specified parameters of at least one single TR antenna in a compartment include received signal strength. Exemplarily, the specific deployment principles of the single TR antenna may include:
[0111] a. For scenarios with multiple rooms (such as multiple offices): deploy a remote single TR antenna in the center of each compartment (such as a room), such as Figure 4 As shown, single TR antenna panel 1, single TR antenna panel 2, single TR antenna panel 3 and single TR antenna panel 4 are deployed in the central areas of compartment 1, compartment 2, compartment 3 and compartment 4 respectively; the network side device body can be deployed in any of the four compartments, or in other rooms outside these compartments, and the network side device body can be connected to the remote single TR antenna through a signal feeder.
[0112] b. For cross-floor scenarios: deploy a remote single TR antenna on each floor, such as Figure 5A As shown, single TR antenna panel 1, single TR antenna panel 2, single TR antenna panel 3 and single TR antenna panel 4 are deployed in the central areas of the roofs of the first floor, the second floor, the third floor and the fourth floor respectively; the network side equipment body can be deployed on any of the four floors or at other locations outside these floors, and the network side equipment body can be connected to the remote single TR antenna through a signal feeder.
[0113] Under the above deployment, multiple measurement reports equivalent to multiple base stations can be obtained through each single TR antenna. The measurement information in these multiple measurement reports can be expressed as:
[0114] Arp0: prru:[x,y,z],
[0115] Arp1:prru′1:[x′1,y′1,z′1],
[0116] Arp2:prru′2:[x′2,y′2,z′2], ...
[0118] Among them, prru′ i :[x′ i ,y′ i ,z′ i ] represents the coordinates of the location of the i-th single TR antenna, rsrp i represents the received signal strength corresponding to the i-th single TR antenna, represents the path loss of the detection signal in the signal feeder between the ith single TR antenna and the network-side device body, di It represents the actual received signal strength value of the detection signal received by the i-th single TR antenna and propagated from the target terminal to the i-th single TR antenna, i=0,1,2,···,N-1.
[0119] in, f represents frequency, m represents frequency loss decibel coefficient, n represents distance loss decibel coefficient, L i It represents the length of the signal feeder between the ith single TR antenna and the network-side device body, and A represents the circuit attenuation in decibels.
[0120] On this basis, as an example, step 202 may include: searching from a pre-constructed fingerprint library according to the measurement value of the received signal strength in the multiple measurement reports to obtain the location information of the target terminal, wherein the fingerprint library stores the coordinate information of each point in the target positioning scene and the correspondence between the received signal strength value received by the multiple single TR antennas from the terminal device at the point, and the data in the fingerprint library is obtained by pre-measurement.
[0121] As another example, step 202 may include: determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measurement values of the received signal strength in the multiple measurement reports.
[0122] Specifically, determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measurement values of the received signal strengths in the multiple measurement reports may include:
[0123] For any single TR antenna among the multiple single TR antennas, determine the path loss of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna according to the length of the signal feeder between the single TR antenna and the network side device body; and determine the actual received signal strength value of the detection signal received by the single TR antenna propagated from the target terminal to the single TR antenna according to the measured value of the received signal strength in the measurement report corresponding to the single TR antenna and the path loss; please refer to the above for the specific calculation formula;
[0124] The location information of the target terminal is determined according to the location information of the multiple single TR antennas and the actual received signal strength values corresponding to the multiple single TR antennas.
[0125] Among them, determining the location information of the target terminal based on the location information of the multiple single TR antennas and the actual received signal strength values corresponding to the multiple single TR antennas may include: determining the maximum value among the actual received signal strength values corresponding to the multiple single TR antennas; and determining the position of the compartment where the single TR antenna corresponding to the maximum value is located as the target compartment where the target terminal is located.
[0126] In the first example, actual received signal strength values corresponding to the multiple single TR antennas may be directly compared to determine the maximum value among the actual received signal strength values corresponding to the multiple single TR antennas.
[0127] In the second example, the solution may be performed by function fitting. Specifically, determining the maximum value of the actual received signal strength values corresponding to the multiple single TR antennas may include:
[0128] Step 1: for any single TR antenna among the multiple single TR antennas, determine the distance of the single TR antenna relative to the coordinate origin according to the coordinate information of the single TR antenna; wherein the coordinate origin is a preset origin of the coordinate system used to characterize the coordinates of each single TR antenna and the target terminal.
[0129] The formula for calculating the distance of the i-th single TR antenna relative to the coordinate origin can be expressed as:
[0130]
[0131] Among them, [x i ,y i ,z i ] represents the coordinates of the i-th single TR antenna.
[0132] Optionally, the distances of the multiple single TR antennas relative to the coordinate origin may be sorted to facilitate subsequent function fitting.
[0133] Step 2: construct an objective function for the distances of the multiple single TR antennas relative to the origin and the actual received signal strength values corresponding to the multiple single TR antennas, wherein the objective function is a function of the actual received signal strength value corresponding to the single TR antenna with respect to the distance of the single TR antenna relative to the origin.
[0134] Among them, the objective function can be expressed as:
[0135] f(l i )=rsrp i
[0136] Among them, rsrp i Indicates the actual received signal strength value corresponding to the i-th single TR antenna.
[0137] Step 3: Determine the coordinate values of the multiple single TR antennas in the curve of the objective function.
[0138] Step 4: construct a line graph according to the coordinate values of the multiple single TR antennas in the curve of the objective function.
[0139] Specifically, the coordinates of the multiple single TR antennas are substituted into the objective function to obtain the actual received signal strength values corresponding to the multiple single TR antennas, and the actual received signal strength values corresponding to the multiple single TR antennas are connected with a broken line to obtain a broken line graph.
[0140] Step 5, determining the maximum value and / or the maximum value in the line graph.
[0141] Among them, the maximum value and the maximum value can be expressed as:
[0142] f(x) 极大 =f(l m )=rsrp m
[0143] f(x) max =f(l n )=rsrp n
[0144] Step 6: Determine the position of the compartment where the single TR antenna corresponding to the local maximum value or the maximum value is located as the position (target compartment) where the target terminal is located.
[0145] Below Figure 5A Taking the application scenario shown as an example, the process of applying the above second example to determine the location of the target terminal is illustrated.
[0146] The first step is to Figure 5A In the application scenario shown, a 4TR base station is selected and four single TR antenna panels are pulled out. The positioning requirement is to determine the floor where the target terminal is located, so the remote single TR antenna panels are deployed in the middle of the middle ceilings of the four floors, and the base station is installed on the third floor.
[0147] In the second step, the base station obtains the coordinate information and received signal strength measurement value of each ARP through the single TR antenna panel as follows:
[0148] Arp1:arp1:[4m,6m,5m],rsrp=-120dB
[0149] Arp2:arp2:[4m,6m,10m],rsrp=-108dB
[0150] Arp3:arp3:[4m,6m,15m],rsrp=-98dB
[0151] Arp4:arp4:[4m,6m,20m],rsrp=-117dB
[0152] The third step is to construct the objective function according to the method of constructing the objective function in the second example above:i )=rsrp i .
[0153] In the fourth step, the point data of each single TR antenna panel is calculated based on the objective function as follows:
[0154] [l1,rsrp1]=(8.78,-120)
[0155] [l2,rsrp2]=(12.33,-108)
[0156] [l3,rsrp3]=(16.64,-98)
[0157] [l4,rsrp4]=(21.26,-117)
[0158] The fifth step is to construct a line graph based on the calculated point data of each single TR antenna panel, such as Figure 5B As shown. Figure 5B It can be analyzed that the curve has only one maximum value but no maximum value, so it can be known that the floor where the target terminal is located is the floor where ARP3 (single TR antenna panel 3) is located. It can be seen that the terminal positioning method provided in the embodiment of this specification not only has low algorithm complexity, but also can reduce the cost of site construction and has high accuracy, so the method has strong practicality.
[0159] Optionally, in the above second application scenario, if at least two single TR antennas are deployed in the target compartment (equivalent to superimposing the first application scenario in the second application scenario), and the specified parameters of the at least two single TR antennas also include at least one of the arrival delay and the arrival angle, then Figure 2 The method shown may also include: determining the location information of the target terminal in the target compartment based on the location information of at least two single TR antennas in the target compartment and the measured values of the arrival delay and / or the arrival angle in the measurement report corresponding to the at least two single TR antennas, and the target compartment is one of the multiple compartments.
[0160] As an example, if at least two single TR antennas are deployed in the target compartment (equivalent to superimposing the first application scenario in the second application scenario), and the specified parameters of the at least two single TR antennas also include arrival delay, then the location information of the target terminal in the target compartment is determined based on the position information of the at least two single TR antennas in the target compartment and the measured value of the arrival delay in the measurement report corresponding to the at least two single TR antennas and the delay-based positioning method, wherein the delay-based positioning method includes the uplink arrival time positioning method UTOA or the uplink arrival time difference positioning method UTDOA.
[0161] As another example, if at least two single TR antennas are deployed in the target compartment (equivalent to superimposing the first application scenario in the second application scenario), and the specified parameters of the at least two single TR antennas also include the angle of arrival, then the location information of the target terminal in the target compartment is determined based on the position information of the at least two single TR antennas in the target compartment and the measured values of the angle of arrival in the measurement report corresponding to the at least two single TR antennas and the angle of arrival positioning method AOA.
[0162] As another example, if at least two single TR antennas are deployed in the target compartment (equivalent to superimposing the first application scenario in the second application scenario), and the specified parameters of the at least two single TR antennas also include arrival delay and arrival angle, then the location information of the target terminal in the target compartment is determined based on the position information of the at least two single TR antennas in the target compartment and the measured values of the arrival delay and the arrival angle in the measurement report corresponding to the at least two single TR antennas, as well as the uplink arrival time positioning method UTOA and the arrival angle positioning method AOA; or, the location information of the target terminal in the target compartment is determined based on the position information of the at least two single TR antennas in the target compartment and the measured values of the arrival delay and the arrival angle in the measurement report corresponding to the at least two single TR antennas, as well as the uplink arrival time difference positioning method UTDOA and the arrival angle positioning method AOA.
[0163] It can be understood that when the first application scenario is superimposed on the second application scenario (i.e., the third application scenario described below), the target compartment where the target terminal is located can be determined based on the method described above for the second application scenario, and then the specific position of the target terminal in the target compartment can be determined based on the method described above for the first application scenario, thereby locating the exact position of the target terminal. The specific calculation method can refer to the description of the corresponding application scenario above, and will not be repeated here.
[0164] Optionally, in the second application scenario, before determining the position of the compartment where the single TR antenna corresponding to the maximum value is located as the target compartment where the target terminal is located, it is also possible to determine whether there is an abnormality in the measurement values of the received signal strength in the multiple measurement reports; when it is determined that there is no abnormality in the measurement values of the received signal strength in the multiple measurement reports, the position of the compartment where the single TR antenna corresponding to the local maximum value is located is determined as the position of the target terminal.
[0165] Among them, the method for determining whether there is an abnormality in the measured value of the received signal strength in the measurement report can be: judging whether the measured value of the received signal strength is obviously lower than the normal value (such as the rated minimum value); if so, it is judged that there is an abnormality; otherwise, there is no abnormality; or, the changing trend of the above-mentioned broken line can be used for judgment; if there is an abnormality in the changing trend of the broken line, such as the appearance of unreasonable troughs, it is judged that there is an abnormality; otherwise, there is no abnormality.
[0166] 3) The third application scenario (LOS scenario + multiple compartments)
[0167] In actual applications, the first application scenario and the second application scenario may appear at the same time. That is, the target positioning scenario includes a scenario with multiple compartments, and the multiple compartments include at least one first compartment without obstacles. Specifically, Figure 6 As shown, there are five compartments in a real application scenario, of which the second compartment is a larger LOS scenario (the first compartment); Figure 7 As shown, there are two compartments in a real application scenario, and both of these compartments are a large LOS scenario (the first compartment). Faced with such a scenario, the positioning requirement evolves to first determine which compartment the target terminal is in, then determine whether the compartment is a LOS scenario, and if so, further determine the location of the target terminal in the compartment.
[0168] In this scenario, a positioning method based on delay and a positioning method based on received signal strength may be used simultaneously. The specified parameters may include arrival delay and received signal strength. Optionally, the specified parameters may also include arrival angle.
[0169] In this scenario, the deployment method of the single TR antenna includes: the multiple single TR antennas include a first single TR antenna and a second single TR antenna, a first compartment is deployed with at least one of the first single TR antenna and the second single TR antenna, a second compartment is deployed with one of the second single TR antenna, the specified parameters corresponding to the measurement of the first single TR antenna include at least one of an arrival delay and an arrival angle, the specified parameters corresponding to the measurement of the second single TR antenna include a received signal strength, and the specified parameters corresponding to the measurement of the second single TR antenna also include at least one of an arrival delay and an arrival angle, and the second compartment is a compartment among the multiple compartments except the first compartment.
[0170] like Figure 6 As shown, a second single TR antenna is deployed in the central area of each of the second compartments, compartment 1, compartment 3, compartment 4, and compartment 5; a first single TR antenna is deployed in each of the three corners of compartment 2 (the first compartment), and a second single TR antenna is deployed in the remaining corner. Figure 6 In the application scenario shown in the figure, the 8TR5G base station can be selected as the network-side device for positioning, and the 8TR 5G base station can be transformed into a 5G base station with 8 remote single TR antennas, and then the 8 single TR antennas can be connected in a Figure 6 Deploy as shown.
[0171] like Figure 7 As shown, a first single TR antenna surface is deployed at three corners of compartment 1 (first compartment) and compartment 2 (first compartment), and a second single TR antenna is deployed at the remaining corner. Figure 7 In the application scenario shown in the figure, an 8TR 5G base station can also be selected as the network-side device for positioning, and the 8TR 5G base station can be transformed into a 5G base station with 8 remote single TR antennas, and then the 8 single TR antennas can be connected in a Figure 7 Deploy as shown.
[0172] It should be noted that when the second single TR antenna also participates in delay positioning, the second single TR antenna is not only used to measure the received signal strength, but also used to measure at least one of the arrival time and the arrival angle. In other words, the second single TR antenna is different from the first single TR antenna in that the second single TR antenna also measures the received signal strength.
[0173] In this scenario, for the first compartment, the deployment principle of the single TR antenna follows the deployment principle for the first application field described above; for the second compartment, the deployment principle of the single TR antenna follows the deployment principle for the second application field described above.
[0174] In this scenario, step 202 may include: determining the target compartment where the target terminal is located based on the position information of the second single TR antenna in the first compartment and the second compartment, and the measurement value of the received signal strength in the measurement report obtained by corresponding measurements of the second single TR antenna in the first compartment and the second compartment; if the target compartment is the first compartment, determining the position information of the target terminal in the target compartment based on the position information of the multiple single TR antennas and the measurement value of at least one of the arrival delay and the arrival angle in the multiple measurement reports; if the target compartment is the second compartment, determining the position of the second compartment as the position of the target terminal.
[0175] Among them, the specific process of determining the target compartment where the target terminal is located according to the position information of the second single TR antenna in the first compartment and the second compartment, and the measured value of the received signal strength in the measurement report obtained by corresponding measurements of the second single TR antenna in the first compartment and the second compartment, can be referred to the above description of the second application scenario; the specific process of determining the position information of the target terminal in the target compartment according to the position information of the multiple single TR antennas and the measured value of at least one of the arrival delay and the arrival angle in the multiple measurement reports can be referred to the above description of the first application scenario, and the description will not be repeated.
[0176] In addition, it can be seen from the above description that, whether positioning is based on arrival delay or received signal strength, the signal feeder between the distant single TR antenna and the network-side device body will cause positioning signal loss. For example, according to the above description of how to locate the terminal device in the first application scenario, the detection signal received by the single TR antenna will produce a first propagation delay in the signal feeder corresponding to the single TR antenna; according to the above description of how to locate the terminal device in the second application scenario, the detection signal received by the single TR antenna will produce path loss in the signal feeder corresponding to the single TR antenna. These losses have an impact on positioning accuracy and need to be eliminated.
[0177] In view of this, regardless of whether the lengths of the signal feeder lines connecting different single TR antennas among the multiple single TR antennas and the network side device body are the same or different, the above step 202 may include:
[0178] For any single TR antenna among the multiple single TR antennas, determine the propagation delay or path loss of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna according to the length of the signal feeder between the single TR antenna and the network side device body;
[0179] And according to the measured value of the specified parameter in the measurement report corresponding to the single TR antenna, and the propagation delay or path loss in the signal feeder corresponding to the single TR antenna, the location information of the target terminal is determined.
[0180] Among them, according to the measured values of the specified parameters described in the measurement report corresponding to the single TR antenna, and the propagation delay or path loss in the signal feeder corresponding to the single TR antenna, the detailed process of determining the location information of the target terminal can be referred to the above description of the first application scenario and the second application scenario respectively, and no further details will be given.
[0181] The above is a description of a terminal device positioning method provided in an embodiment of this specification. This method performs remote processing on multiple TR antennas included in a network side device, so that the network side device has multiple remote single TR antennas, and deploys these multiple remote single TR antennas at different locations of the target positioning scene, so that a network side device can obtain multiple measurement reports for the target terminal through the multiple remote single TR antennas, and the location information of the target terminal can be determined based on the measurement values of the specified parameters in these multiple measurement reports. It can be seen that the terminal device positioning solution provided in the embodiment of this specification does not need to deploy multiple network side devices in the target positioning scene, and the positioning of the terminal device can be achieved through one network side device, which reduces the number of network side devices required for terminal device positioning, reduces power consumption, makes it easier to control power, and saves the deployment cost of the network side devices required for positioning.
[0182] like Figure 8 As shown, the embodiment of this specification also provides a network side device, including: a plurality of remote single TR antennas, wherein:
[0183] The multiple single TR antennas are connected to the network side device body via a signal feeder;
[0184] The multiple single TR antennas are used to measure the target terminal at different positions in the target positioning scenario, respectively, to obtain multiple measurement reports for the target terminal. One single TR antenna measurement corresponds to one measurement report, and the measurement report contains measurement values of specified parameters used to determine the position of the target terminal.
[0185] It can be understood that when the network side device is used for terminal device positioning, the number of network side devices required for terminal device positioning can be reduced, power consumption can be reduced, and the deployment cost of the network side devices required for positioning can be saved.
[0186] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0187] Fig. 9 This is a schematic diagram of the structure of an electronic device according to an embodiment of this specification. Fig. 9At the hardware level, the electronic device includes a processor, and optionally also includes an internal bus, a network interface, and a memory. The memory may include a memory, such as a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. Of course, the electronic device may also include hardware required for other services.
[0188] The processor, network interface and memory can be interconnected through an internal bus, which can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.
[0189] The memory is used to store the program. Specifically, the program may include a program code, and the program code includes a computer operation instruction. The memory may include a memory and a non-volatile memory, and provides instructions and data to the processor.
[0190] The processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it, forming a terminal equipment positioning device at the logical level. The processor executes the program stored in the memory and is specifically used to perform the following operations:
[0191] Measuring the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one measurement of the single TR antenna corresponds to one measurement report, and the measurement report includes a measurement value of a specified parameter used to determine the position of the target terminal;
[0192] The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
[0193] The above is as in this manual Fig. 9The method performed by the terminal equipment positioning device disclosed in the illustrated embodiment can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of this specification can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of this specification can be directly embodied as a hardware decoding processor for execution, or a combination of hardware and software modules in the decoding processor for execution. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
[0194] The electronic device may also perform Figure 2 The method is implemented by the terminal equipment positioning device. Figure 2 The functions in the illustrated embodiments will not be described in detail in this specification.
[0195] Of course, in addition to software implementation, the electronic device of this specification does not exclude other implementation methods, such as logic devices or a combination of software and hardware, etc., that is to say, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic devices.
[0196] The embodiment of the present specification also provides a computer-readable storage medium, which stores one or more programs, wherein the one or more programs include instructions, which, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to execute Figure 2 The method of the embodiment shown is specifically used to perform the following operations:
[0197] Measuring the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one measurement of the single TR antenna corresponds to one measurement report, and the measurement report includes a measurement value of a specified parameter used to determine the position of the target terminal;
[0198] The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
[0199] Fig.10 This is a schematic diagram of the structure of a terminal device positioning device 1000 according to an embodiment of this specification. The device 1000 can be applied to a network side device, wherein the network side device includes multiple remote single TR antennas, the multiple single TR antennas are connected to the network side device body through a signal feeder, and the multiple single TR antennas are deployed at different positions in the target positioning scene. Please refer to Fig.10 In a software implementation, the terminal device positioning device 1000 may include: a report generating module 1001 and a position determining module 1002 .
[0200] The report generation module 1001 is used to measure the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one single TR antenna measurement corresponds to one measurement report, and the measurement report includes the measurement value of the specified parameter used to determine the position of the target terminal.
[0201] Specifically, the report generation module 1001 can be used to: respectively receive the detection signals sent by the target terminal through the multiple single TR antennas; respectively analyze the detection signals received by the multiple single TR antennas to generate the multiple measurement reports. The method for the network side device to analyze the received detection signal belongs to the prior art and is not described in detail herein.
[0202] The specified parameters may include but are not limited to at least one of arrival delay, arrival angle and received signal strength.
[0203] The location determination module 1002 is configured to determine the location information of the target terminal according to the measurement values of the specified parameters in the multiple measurement reports.
[0204] Specifically, the specific process of the location determination module 1002 for positioning in different application scenarios can be referred to above. Figure 2 The description of the illustrated method embodiment will not be repeated here.
[0205] The terminal device positioning device 1000 provided in the embodiment of this specification can also execute Figure 2 The method can achieve the same technical effect, and the embodiments of this specification will not be repeated here.
[0206] In short, the above description is only a preferred embodiment of this specification and is not intended to limit the protection scope of this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.
[0207] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
[0208] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.
[0209] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.
[0210] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
Claims
1. A terminal device positioning method is applied to a network side device, wherein the network side device includes a plurality of remote single TR antennas, the plurality of single TR antennas are connected to the network side device body through a signal feeder, and the plurality of single TR antennas are deployed at different positions in a target positioning scene, the method comprising: Measuring the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal, wherein one measurement of the single TR antenna corresponds to one measurement report, and the measurement report includes a measurement value of a specified parameter used to determine the position of the target terminal; The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
2. The method according to claim 1, wherein the measuring the target terminal respectively through the multiple single TR antennas to obtain multiple measurement reports for the target terminal comprises: Receiving the detection signals sent by the target terminal respectively through the multiple single TR antennas; The detection signals received by the multiple single TR antennas are analyzed respectively to generate the multiple measurement reports.
3. The method according to claim 1 or 2, wherein the specified parameter comprises at least one of an arrival delay, an arrival angle and a received signal strength.
4. According to the method of claim 1 or 2, the lengths of the signal feeder lines connecting different single TR antennas among the plurality of single TR antennas and the network side device body are the same or different, wherein: The determining, according to the measurement values of the specified parameters in the multiple measurement reports, the location information of the target terminal includes: For any single TR antenna among the multiple single TR antennas, determining a propagation delay or path loss of a detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna according to the length of the signal feeder between the single TR antenna and the network-side device body; And according to the measured value of the specified parameter in the measurement report corresponding to the single TR antenna, and the propagation delay or path loss in the signal feeder corresponding to the single TR antenna, the location information of the target terminal is determined.
5. According to the method of claim 1, the target positioning scenario is a LOS scenario without obstacles, the number of the multiple single TR antennas is greater than or equal to 2, and the specified parameters include at least one of the arrival delay and the arrival angle.
6. The method according to claim 5, wherein the specified parameters include arrival delay, the number of the plurality of single TR antennas is greater than or equal to 3, and wherein: The determining, according to the measurement values of the specified parameters in the multiple measurement reports, the location information of the target terminal includes: The location information of the target terminal is determined according to the location information of the multiple single TR antennas and the measured values of the arrival delays in the multiple measurement reports.
7. The method according to claim 6, wherein the lengths of the signal feeder lines connecting different single TR antennas among the plurality of single TR antennas and the network side device body are the same or different, wherein: The determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measured values of the arrival delays in the multiple measurement reports includes: For any single TR antenna among the multiple single TR antennas, determine, according to the length of the signal feeder between the single TR antenna and the network-side device body, a first propagation delay of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna; and determine, according to the measured value of the arrival delay in the measurement report corresponding to the single TR antenna and the first propagation delay, a second propagation delay of the detection signal received by the single TR antenna from the target terminal to the single TR antenna; The location information of the target terminal is determined according to the location information of the multiple single TR antennas, the second propagation delay corresponding to the multiple single TR antennas, and a delay-based positioning method, wherein the delay-based positioning method includes an uplink arrival time positioning method UTOA or an uplink arrival time difference positioning method UTDOA.
8. According to the method of claim 1, the target positioning scenario is a scenario with multiple compartments, at least one single TR antenna is deployed in one compartment, and the specified parameters of at least one single TR antenna include received signal strength.
9. The method according to claim 8, wherein determining the location information of the target terminal according to the measurement values of the specified parameters in the plurality of measurement reports comprises: The location information of the target terminal is determined according to the location information of the multiple single TR antennas and the measurement values of the received signal strengths in the multiple measurement reports.
10. The method according to claim 9, wherein determining the location information of the target terminal according to the location information of the multiple single TR antennas and the measured values of the received signal strength in the multiple measurement reports comprises: For any single TR antenna among the multiple single TR antennas, determine the path loss of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna according to the length of the signal feeder between the single TR antenna and the network-side device body; and determine the actual received signal strength value of the detection signal received by the single TR antenna propagated from the target terminal to the single TR antenna according to the measured value of the received signal strength in the measurement report corresponding to the single TR antenna and the path loss; The location information of the target terminal is determined according to the location information of the multiple single TR antennas and the actual received signal strength values corresponding to the multiple single TR antennas.
11. The method according to claim 10, wherein determining the location information of the target terminal according to the location information of the multiple single TR antennas and the actual received signal strength values corresponding to the multiple single TR antennas comprises: Determine a maximum value among actual received signal strength values corresponding to the multiple single TR antennas; The position of the compartment where the single TR antenna corresponding to the maximum value is located is determined as the target compartment where the target terminal is located.
12. The method according to claim 8 or 11, if at least two single TR antennas are deployed in the target compartment, and the specified parameters of the at least two single TR antennas further include at least one of arrival delay and arrival angle, the method further comprises: The location information of the target terminal in the target compartment is determined based on the location information of at least two single TR antennas in the target compartment and the measured values of the arrival delay and / or the arrival angle in the measurement report corresponding to the at least two single TR antennas, and the target compartment is one of the multiple compartments.
13. The method according to claim 11, before determining the position of the compartment where the single TR antenna corresponding to the maximum value is located as the target compartment where the target terminal is located, the method further comprises: Determining whether there is an abnormality in the measurement values of the received signal strength in the multiple measurement reports; When it is determined that there is no abnormality in the measurement values of the received signal strength in the multiple measurement reports, the position of the compartment where the single TR antenna corresponding to the maximum value or the maximum value is located is determined as the position of the target terminal.
14. A network side device, comprising: Multiple single TR antennas are pulled out, where The multiple single TR antennas are connected to the network side device body via a signal feeder; The multiple single TR antennas are used to measure the target terminal at different positions in the target positioning scenario, respectively, to obtain multiple measurement reports for the target terminal. One single TR antenna measurement corresponds to one measurement report, and the measurement report contains measurement values of specified parameters used to determine the position of the target terminal.
15. An electronic device, comprising: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1 to 13. 16 . A computer-readable storage medium, when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the method according to claim 1 .
Citation Information
Cited By
Terminal device positioning method and network-side device
EP4723685A1