Terminal device positioning method and network-side device
By deploying multiple single TR antennas that stretch in the network side equipment, the problems of high base station deployment costs and difficult power control in indoor positioning scenarios are solved, and efficient terminal device positioning is achieved and power consumption and deployment costs are reduced.
Patent Information
- Application Number
- PCT/CN2024/096560
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-07-31
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-06
AI Technical Summary
In indoor positioning scenarios, the prior art requires multiple base stations to locate terminal equipment, resulting in high cost of base station deployment and difficulty in power control.
By deploying multiple single TR antennas that are stretched out in the network side device, the terminal equipment is used to measure the terminal equipment separately, multiple measurement reports are obtained, and the position information of the terminal equipment is determined.
Reduces the number of network-side devices required for terminal equipment positioning, reduces power consumption and deployment costs, and improves positioning accuracy.
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Figure CN2024096560_06022025_PF_FP_ABST
Abstract
Description
Terminal device positioning method and network side device
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to a Chinese patent application filed with the Patent Office of China on July 31, 2023, with application number 202310957816.2 and invention name “A terminal device positioning method and network side device”. The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field
[0003] The present application relates to the field of mobile communication technology, and in particular to a terminal device positioning method and network-side equipment. Background Art
[0004] In indoor positioning scenarios where the uplink relative time of arrival (UL RTOA) reported by base stations is used to locate terminal devices, measurement reports from three base stations are required for two-dimensional positioning, while measurement reports from four base stations are required for three-dimensional positioning to calculate the location information of the terminal device.
[0005] However, in operational scenarios such as chemical and steel industries, safety considerations place strict requirements on the number and power of base stations deployed indoors. In some office scenarios, such as conference rooms with multiple rooms, positioning in each room requires deploying at least three base stations in each room, which undoubtedly increases base station deployment costs and makes power control difficult.
[0006] 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.
[0007] Summary of the Invention
[0008] 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 multiple remote single TR antennas, the multiple single TR antennas are connected to the network-side device body via a signal feeder, and the multiple single TR antennas are deployed at different positions in a target positioning scenario. The method includes: measuring the target terminal separately 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 a measurement value of a specified parameter for determining the position of the target terminal; and determining the position information of the target terminal according to the measurement value of the specified parameter in the multiple measurement reports.
[0009] 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 multiple remote single TR antennas, and the multiple single TR antennas are connected to the network side device body through a signal feeder. The multiple single TR antennas are deployed at different positions in the target positioning scenario. The device includes: a report generation module, which is used to measure the target terminal separately 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 a measurement value of a specified parameter for determining the position of the target terminal; and a position determination module, which is used to determine the position information of the target terminal based on the measurement value of the specified parameter in the multiple measurement reports.
[0010] According to a third aspect, a network side device is provided, comprising: 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; the plurality of single TR antennas are used to measure a target terminal at different positions in a target positioning scenario, respectively, to obtain a plurality of measurement reports for the target terminal, one single TR antenna measurement corresponding to one measurement report, and the measurement report containing measurement values of specified parameters for determining the position of the target terminal.
[0011] In a fourth aspect, an electronic device is provided, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the method described in the first aspect.
[0012] In a fifth aspect, a computer-readable storage medium is provided, which, when the instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to execute the method described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0014] FIG1 is a schematic diagram of a multi-TR antenna remote design of a network-side device provided in an embodiment of the present application.
[0015] FIG2 is a flow chart of a terminal device positioning method provided in an embodiment of the present application.
[0016] FIG3 is a schematic diagram of a first application scenario (LOS scenario) of a terminal device positioning method provided in an embodiment of the present application.
[0017] FIG4 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 the present application.
[0018] FIG5A 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 the present application.
[0019] FIG5B is a schematic diagram of discount provided in an embodiment of the present application.
[0020] FIG6 is a first schematic diagram of a third application scenario (LOS scenario + multiple compartments) of a terminal device positioning method provided in an embodiment of the present application.
[0021] FIG7 is a second schematic diagram of a third application scenario (LOS scenario + multiple compartments) of a terminal device positioning method provided in an embodiment of the present application.
[0022] FIG8 is a schematic structural diagram of a network-side device provided in an embodiment of the present application.
[0023] FIG9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
[0024] FIG10 is a schematic structural diagram of a terminal device positioning apparatus according to an embodiment of the present application. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in one or more embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present application without making creative efforts should fall within the scope of protection of the present application.
[0026] The terms "first," "second," etc., in this application and the claims are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the numerals used in this manner are interchangeable where appropriate so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein. In addition, the term "and / or" in this application and the claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.
[0027] In order to reduce the number of network-side devices (such as base stations) required for terminal device positioning, the present application proposes a terminal device positioning method and a network-side device, which are described below in conjunction with the accompanying drawings.
[0028] In the embodiments of the present application, the network-side device used for terminal device positioning includes multiple antenna ports. For example, if the network-side device is a 5G base station, the network-side device can be a base station that includes a 4TR antenna or an 8TR antenna. In other words, the antenna model required by the network-side device in the embodiments of the present application is NTR, where N is any positive integer and TR is the abbreviation for Transmit and Receive.
[0029] As shown in Figure 1, in order to reduce the number of network-side devices (such as base stations) required for terminal device positioning, the embodiment of the present application pulls 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, a remote antenna with the original N antenna ports can be constructed for a network-side device. 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 the network-side device. This solution of replacing the network-side device that originally needs to be deployed with an antenna can also save the cost of deploying the network-side device required for positioning.
[0030] With the antenna remote solution shown in Figure 1, a network-side device generates a group of measurement reports based on the probe signal from the target terminal device, which can be expressed as follows:
[0031] trp1:{t=t0,rsrp=d0}
[0032] Where t represents the arrival delay and rsrp represents the reference signal received power.
[0033] If N sets of single TR antennas are constructed, each set of single antennas forms an antenna radiation pattern (ARP) and is independently measured. As a result, the following four sets of measurement reports can be obtained:
[0034] arp1:{t=t1,rsrp=d1}
[0035] arp2:{t=t2,rsrp=d2}
[0036] arp3:{t=t3,rsrp=d3}
[0037] ......
[0038] trp N :{t=t N ,rsrp=dN}
[0039] Therefore, the location information of the target terminal can be calculated using N groups of positioning measurement reports from a base station.
[0040] A terminal device positioning method provided in an embodiment of the present application 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 the present application can also be used for outdoor positioning, for example, positioning based on outdoor 5G macro base stations. That is, in an embodiment of the present application, the network side device can be any one of a 5G pico base station, a Bluetooth device, a UWB device, and a 5G macro base station.
[0041] In this embodiment of the present application, the network-side device receives the probe signal and is responsible for calculating measurement parameters such as the arrival delay, arrival angle, and received signal strength of the received probe signal within the network-side device (i.e., the network-side device itself). The terminal device is responsible for sending the probe signal, and multiple remote single-TR antennas are responsible for receiving the same uplink probe measurement signal from the terminal device.
[0042] The arrival delay may include but is not limited to a timing advance (TA). The received signal strength may include but is not limited to at least one of a reference signal receiving power (RSRP), a received signal strength indication (RSSI), a reference signal received quality (RSRQ), and a signal to interference noise ratio (SINR). The sounding signal may include but is not limited to an uplink sounding reference signal (SRS) and a single-frequency sinusoidal signal.
[0043] Based on the network-side device shown in FIG1 , this application proposes a terminal device positioning method. This method can be applied to the network-side device shown in FIG1 , which includes multiple remote single TR antennas. The multiple single TR antennas are connected to the network-side device body via signal feeders. The multiple single TR antennas are deployed at different locations in the target positioning scenario. As shown in FIG2 , the method may include:
[0044] In step 201, a target terminal is measured 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 a measurement value of a specified parameter for determining the location of the target terminal.
[0045] Specifically, step 201 may include: receiving, via the multiple single-TR antennas, a probe signal sent by the target terminal; and analyzing, respectively, the probe signals received by the multiple single-TR antennas to generate the multiple measurement reports. The method by which the network-side device analyzes the received probe signal is prior art and is not further described herein.
[0046] The specified parameters may include but are not limited to at least one of arrival delay, arrival angle and received signal strength.
[0047] Step 202: Determine the location information of the target terminal according to the measurement values of the designated parameters in the multiple measurement reports.
[0048] In the embodiment of the present application, the target positioning scenario is mainly described as an indoor positioning scenario. Specifically, the target positioning scenario may include three situations:
[0049] The first application scenario: a scenario without obstacles, namely the LOS (Line of Sight) scenario.
[0050] The second application scenario involves multiple compartments, such as a multi-story building or a conference room with multiple rooms. Optionally, these multiple compartments can also include LOS scenarios, meaning that a particular compartment is in an LOS scenario. See the third application scenario below for details. Of course, these multiple compartments can also include non-LOS scenarios, such as irregularly shaped or obstructed by obstacles.
[0051] The third application scenario: the first application scenario + the second application scenario, that is, LOS scenario + multiple compartments.
[0052] 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 by using the layout mode and positioning principle of multiple remote single TR antennas indoors as shown in the embodiments of this application.
[0053] For different application scenarios, the specified parameters used for positioning will be different, which are explained below one by one.
[0054] 1) First application scenario (LOS scenario)
[0055] This scenario is an open, unobstructed scene, such as a rectangular, empty room. Furthermore, for non-LOS scenarios, i.e., compartments with irregular shapes or obstructions (such as T-shaped, cross-shaped, or "F"-shaped buildings, train stations, and airport terminals with obstructions in the middle), they can be divided into multiple areas (compartments) based on LOS requirements, and each area can be used as a LOS scenario.
[0056] In this scenario, the number of single TR antennas is no less than 2.
[0057] In this scenario, a delay-based positioning method may be used, that is, the specified parameters include arrival delay.
[0058] In this scenario, the deployment principles for a single TR antenna include:
[0059] a. Deploy multiple single TR antennas at the boundaries of the scene (such as corners) and ensure that the target area is within the coverage area of the multiple single TR antennas.
[0060] b. The number of multiple single TR antennas is greater than 3. When installed, ensure that the target user within the coverage area of the multiple single TR antennas can directly see the multiple single TR antennas;
[0061] c. During installation, ensure that multiple single TR antennas are as far away from obstacles as possible, usually 2-3 meters away from obstacles.
[0062] As shown in Figure 3, if the target positioning scenario is an open, unobstructed rectangular room, a 4TR network-side device can be selected, and 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.
[0063] 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.
[0064] 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 embodiment of the present application proposes two solutions.
[0065] Solution 1: The signal feeder lines connecting different single TR antennas among the multiple single TR antennas and the network side device body have the same length, 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.
[0066] In Solution 1, determining the location information of the target terminal based on 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 based on 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 time of arrival positioning method (Uplink Time Of Arrival, UTOA) or an uplink time difference of arrival positioning method (Uplink Time Difference of Arrival, UTDOA).
[0067] It can be understood that by selecting signal feeders of the same length, the delay of the detection signal propagating in the signal feeder 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).
[0068] In solution 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 obtained through each single TR antenna. The measurement information in these multiple measurement reports can be expressed as follows:
[0069] Arp0:
[0070] Arp1:
[0071] Arp2:
[0072] ...
[0073] Arpi:
[0074] 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 i 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.
[0075] Solution 2: 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.
[0076] In Solution 2, determining the location information of the target terminal based on 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, for any single TR antenna among the multiple single TR antennas, a first propagation delay of the detection signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna based on the length of the signal feeder between the single TR antenna and the network-side device body; and determining, based on 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 (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; and determining the location information of the target terminal based on the location information of the multiple single TR antennas, the second propagation delays corresponding to the multiple single TR antennas, and a delay-based positioning method, wherein the delay-based positioning method includes UTOA or UTDOA.
[0077] 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 deducted 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:
[0078] Among them, L i is the length of the signal feeder between the i-th single TR antenna and the network-side device, and c is the speed of light.
[0079] In solution 2, 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:
[0080] Arp0:
[0081] Arp1:
[0082] Arp2:
[0083] ...
[0084] Arpi:
[0085] Among them, prru i ′:[xi ′,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, where i = 0, 1, 2, . . . , N-1.
[0086] After determining the coordinates of each single TR antenna and the corresponding propagation delay using Solution 1 or Solution 2, assuming the coordinates of the target terminal are [X, Y, Z], if the UTDOA is used to determine the location of the target terminal, the following solution equation can be constructed:
[0087] When the number of remote single TR antennas exceeds four, at least three sets of equations can be constructed using the above method. The coordinates of the target terminal [X, Y, Z] can be solved using the least squares method, thereby achieving the purpose of locating the target terminal using one base station.
[0088] The process of using TOA to construct and solve equations can be referred to related technologies and will not be described in detail in the embodiments of this application.
[0089] Optionally, in the first application scenario, the location of the target terminal may be determined based on an angle-of-arrival (AOA) positioning method, where the corresponding specified parameter includes an angle of arrival. In this case, step 202 may include determining the location information of the target terminal based on the location information of the multiple single-TR antennas, the angle of arrival measurement values in the multiple measurement reports, and the AOA.
[0090] Similarly, the process of using AOA to construct and solve equations can also refer to related technologies, and will not be described in detail in the embodiments of this application.
[0091] Optionally, in the first application scenario, the location of the target terminal can be determined by combining a delay-based positioning method with an angle-of-arrival (AOA) positioning method. In this case, the specified parameters include arrival delay and arrival angle, and determining the location information of the target terminal based on the measured values of the specified parameters in the multiple measurement reports includes:
[0092] 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 described 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 described in the multiple measurement reports, and the uplink arrival time difference positioning method UTDOA and the arrival angle positioning method AOA.
[0093] 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 arrival angle respectively, and then the coordinate information of the target terminal can be obtained by jointly solving them. This embodiment of the present application will not be elaborated.
[0094] 2) Second application scenario (scenarios involving multiple compartments)
[0095] The second application scenario can be a scenario with multiple compartments, for example, a scenario including multiple rooms or a scenario including multiple floors. In a scenario with multiple floors, on the one hand, using signal feeders of the same length to offset delay becomes more difficult, and on the other hand, the accuracy of the delay between intervals is poor, resulting in large positioning accuracy errors. Therefore, in this scenario, a positioning method based on signal reception strength can be selected for positioning, which has higher accuracy.
[0096] In this scenario, at least one single TR antenna is deployed in a compartment, and the specified parameter of at least one single TR antenna in a compartment includes received signal strength. Exemplarily, the specific deployment principles of the single TR antenna may include:
[0097] a. For scenarios containing multiple rooms (such as scenarios containing multiple offices): Deploy a remote single TR antenna in the center of each compartment (such as a room). As shown in Figure 4, 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 center of compartments 1, 2, 3, and 4, respectively. The network-side device body can be deployed in any of these four compartments or in other rooms outside these compartments. The network-side device body and the remote single TR antenna can be connected via a signal feeder.
[0098] b. For cross-floor scenarios: Deploy a remote single TR antenna on each floor. As shown in Figure 5A, 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 center areas of the rooftops on the first, second, third, and fourth floors, respectively. The network-side equipment can be deployed on any of these four floors or elsewhere. The network-side equipment and the remote single TR antenna can be connected via a signal feeder.
[0099] In 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 follows:
[0100] Arp0:
[0101] Arp1:
[0102] Arp2:
[0103] ...
[0104] 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 i-th single TR antenna and the network-side device body, d i 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, where i = 0, 1, 2, . . . , N-1.
[0105] in, f represents frequency, m represents frequency loss decibel coefficient, n represents distance loss decibel coefficient, L i represents the length of the signal feeder between the i-th single TR antenna and the network-side device body, and A represents the circuit attenuation in decibels.
[0106] On this basis, as an example, step 202 may include: searching from a pre-constructed fingerprint library based on the measurement values 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 values of the terminal device at the point received by the multiple single TR antennas, and the data in the fingerprint library is obtained by pre-measurement.
[0107] 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.
[0108] 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:
[0109] For any single TR antenna among the multiple single TR antennas, determine the path loss of the probe signal received by the single TR antenna in the signal feeder corresponding to the single TR antenna based on 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 probe signal received by the single TR antenna, which propagates from the target terminal to the single TR antenna, based on 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.
[0110] The location information of the target terminal is determined according to the location information of the multiple single TR antennas and actual received signal strength values corresponding to the multiple single TR antennas.
[0111] 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.
[0112] 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.
[0113] In the second example, the solution may be performed by function fitting. Specifically, determining the maximum value among the actual received signal strength values corresponding to the multiple single TR antennas may include:
[0114] 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 based on the coordinate information of the single TR antenna; wherein the coordinate origin is a pre-set origin of the coordinate system used to represent the coordinates of each single TR antenna and the target terminal.
[0115] The formula for calculating the distance of the i-th single TR antenna relative to the coordinate origin can be expressed as:
[0116] Among them, [x i ,y i ,z i ] represents the coordinates of the i-th single TR antenna.
[0117] Optionally, the distances of the multiple single TR antennas relative to the coordinate origin may be sorted to facilitate subsequent function fitting.
[0118] Step 2: Construct an objective function based on 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.
[0119] Among them, the objective function can be expressed as:
[0120] f(l i )=rsrp i
[0121] Among them, rsrp i Indicates the actual received signal strength value corresponding to the i-th single TR antenna.
[0122] Step 3: Determine the coordinate values of the multiple single-TR antennas in the curve of the objective function.
[0123] Step 4: construct a broken line graph according to the coordinate values of the multiple single TR antennas in the curve of the objective function.
[0124] 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. 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.
[0125] Step 5: Determine the maximum value and / or the maximum value in the line graph.
[0126] Among them, the maximum value and the maximum value can be expressed as:
[0127] f(x) 极大 =f(l m )=rsrp m
[0128] f(x) max =f(l n )=rsrp n
[0129] Step 6: Determine the location of the compartment where the single TR antenna corresponding to the maximum value or the maximum value is located as the location of the target terminal (target compartment).
[0130] The following uses the application scenario shown in FIG. 5A as an example to illustrate the process of determining the location of the target terminal by applying the second example above.
[0131] The first step is to select a 4TR base station for the application scenario shown in Figure 5A and pull out four single-TR antenna panels. The positioning requirement is to determine the floor where the target terminal is located, so the extended single-TR antenna panels are deployed in the middle of the middle ceiling of the four floors, and the base station is installed on the third floor.
[0132] 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:
[0133] Arp1:arp1:[4m,6m,5m],rsrp=-120dB
[0134] Arp2:arp2:[4m,6m,10m],rsrp=-108dB
[0135] Arp3:arp3:[4m,6m,15m],rsrp=-98dB
[0136] Arp4:arp4:[4m,6m,20m],rsrp=-117dB
[0137] 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 .
[0138] In the fourth step, the point data of each single TR antenna panel is calculated based on the objective function as follows:
[0139] [l1,rsrp1]=(8.78,-120)
[0140] [l2,rsrp2]=(12.33,-108)
[0141] [l3,rsrp3]=(16.64,-98)
[0142] [l4,rsrp4]=(21.26,-117)
[0143] In the fifth step, a line graph is constructed based on the calculated position data for each single-TR antenna panel, as shown in Figure 5B. Figure 5B shows that the curve has only one maximum value, indicating that the target terminal is located on the floor where ARP3 (single-TR antenna panel 3) is located. This demonstrates that the terminal positioning method provided by this embodiment of the present application not only has low algorithmic complexity, but also reduces site construction costs and offers high accuracy, making this method highly practical.
[0144] Optionally, in the above-mentioned 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, the method shown in Figure 2 may also include: determining the location information of the target terminal in the target compartment based on the location information of the 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.
[0145] 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.
[0146] 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 position 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.
[0147] 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.
[0148] It is 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 first 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 accurately locating the target terminal. The specific calculation method can be referred to the description of the corresponding application scenario above and will not be repeated here.
[0149] 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 maximum value is located is determined as the position of the target terminal.
[0150] 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 an unreasonable trough, it is judged that there is an abnormality; otherwise, there is no abnormality.
[0151] 3) The third application scenario (LOS scenario + multiple compartments)
[0152] In actual applications, there may be situations where the first application scenario and the second application scenario 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 that is unobstructed. Specifically, as shown in Figure 6, there are 5 compartments in a real application scenario, of which the second compartment is a larger LOS scenario (first compartment); as shown in Figure 7, there are 2 compartments in a real application scenario, and both of these 2 compartments are a larger LOS scenario (first compartment). Faced with such a scenario, the positioning requirement evolves to first determine which compartment the target terminal is in, and then determine whether the compartment is a LOS scenario. If so, further determine the position of the target terminal in the compartment.
[0153] In this scenario, a positioning method based on time delay and a positioning method based on received signal strength may be used simultaneously. The specified parameters may include arrival time delay and received signal strength. Optionally, the specified parameters may also include arrival angle.
[0154] 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 the arrival delay and the arrival angle, the specified parameters corresponding to the measurement of the second single TR antenna include the received signal strength, and the specified parameters corresponding to the measurement of the second single TR antenna also include at least one of the arrival delay and the arrival angle, and the second compartment is a compartment among the multiple compartments except the first compartment.
[0155] As shown in Figure 6, a second single TR antenna is deployed in the center of each of the second compartments, Compartment 1, Compartment 3, Compartment 4, and Compartment 5. A first single TR antenna is deployed at each of the three corners of Compartment 2 (the first compartment), and a second single TR antenna is deployed at the remaining corner. In actual applications, facing the application scenario shown in Figure 6, an 8TR 5G base station can be used as the network-side device for positioning. This 8TR 5G base station can be converted into a 5G base station with eight remote single TR antennas, and these eight single TR antennas can then be deployed as shown in Figure 6.
[0156] As shown in Figure 7, a first single TR antenna surface is deployed at each of the three corners of Compartment 1 (the first compartment) and Compartment 2 (the first compartment), and a second single TR antenna is deployed at the remaining corner. In actual applications, facing the application scenario shown in Figure 7, an 8TR 5G base station can also be used as the network-side device for positioning, and this 8TR 5G base station can be converted into a 5G base station with eight telescopic single TR antennas, and then these eight single TR antennas can be deployed as shown in Figure 7.
[0157] It should be noted that when the second single-TR antenna also participates in time-delay positioning, it not only measures received signal strength but also measures at least one of time of arrival and angle of arrival. In other words, the second single-TR antenna differs from the first single-TR antenna in that it also measures received signal strength.
[0158] 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.
[0159] 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 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.
[0160] 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 measurement value of the received signal strength in the measurement report obtained by corresponding measurement 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 measurement value of at least one of the arrival delay and arrival angle in the multiple measurement reports can be referred to the above description of the first application scenario, and will not be repeated.
[0161] In addition, as can be seen from the above description, 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 generate 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 generate 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.
[0162] 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:
[0163] For any single TR antenna among the multiple single TR antennas, determining, based on the length of the signal feeder between the single TR antenna and the network-side device body, 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;
[0164] The location information of the target terminal is determined based on 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.
[0165] Among them, the detailed process of determining the location information of the target terminal based on 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 can be referred to the above descriptions of the first application scenario and the second application scenario respectively, and will not be repeated here.
[0166] The above describes a terminal device positioning method provided by an embodiment of the present application. This method performs remote processing on multiple TR antennas contained in a network-side device, so that the network-side device has multiple remote single TR antennas, and deploys these remote multiple single TR antennas at different locations in 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 can determine the location information of the target terminal 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 by the embodiment of the present application does not require the deployment of multiple network-side devices in the target positioning scene. 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.
[0167] As shown in FIG8 , an embodiment of the present application further provides a network-side device, including: a plurality of remote single TR antennas, wherein:
[0168] The multiple single TR antennas are connected to the network side device body via a signal feeder;
[0169] 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 the measurement values of the specified parameters used to determine the position of the target terminal.
[0170] 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.
[0171] The foregoing description describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0172] FIG9 is a schematic diagram of the structure of an electronic device according to an embodiment of the present application. Referring to FIG9 , at 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 device. Of course, the electronic device may also include hardware required for other services.
[0173] The processor, network interface, and memory can be interconnected via an internal bus, such as an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. These buses can be classified as address buses, data buses, and control buses. For ease of illustration, FIG9 shows only one bidirectional arrow, but this does not imply that there is only one bus or only one type of bus.
[0174] The memory is used to store programs. Specifically, the program may include program code, which includes computer operating instructions. The memory may include internal memory and non-volatile memory, and provides instructions and data to the processor.
[0175] The processor reads the corresponding computer program from the non-volatile memory into the internal memory and then runs it, forming a terminal device positioning device at the logical level. The processor executes the program stored in the memory and is specifically used to perform the following operations:
[0176] Measuring a target terminal using the multiple single TR antennas respectively to obtain multiple measurement reports for the target terminal, wherein one measurement report is obtained corresponding to one single TR antenna measurement, and the measurement report includes a measurement value of a specified parameter used to determine a location of the target terminal;
[0177] The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
[0178] The method performed by the terminal device positioning device disclosed in the embodiment shown in FIG9 of the present application can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor or by software instructions. 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 gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.
[0179] The electronic device can also execute the method of Figure 2 and realize the functions of the terminal device positioning device in the embodiment shown in Figure 2, and the embodiment of this application will not be repeated here.
[0180] Of course, in addition to software implementation, the electronic device of this application 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.
[0181] The present application also provides a computer-readable storage medium storing one or more programs. The one or more programs include instructions. When executed by a portable electronic device including multiple application programs, the instructions enable the portable electronic device to perform the method of the embodiment shown in FIG. 2 , and are specifically configured to perform the following operations:
[0182] Measuring a target terminal using the multiple single TR antennas respectively to obtain multiple measurement reports for the target terminal, wherein one measurement report is obtained corresponding to one single TR antenna measurement, and the measurement report includes a measurement value of a specified parameter used to determine a location of the target terminal;
[0183] The location information of the target terminal is determined according to the measurement values of the designated parameters in the multiple measurement reports.
[0184] Figure 10 is a schematic diagram of a terminal device positioning apparatus 1000 according to an embodiment of the present application. Apparatus 1000 can be applied to a network-side device, which includes multiple remote single-TR antennas connected to the network-side device via signal feeders and deployed at different locations within the target positioning scenario. Referring to Figure 10 , in a software implementation, terminal device positioning apparatus 1000 may include a report generation module 1001 and a location determination module 1002.
[0185] The report generation module 1001 is used to measure the target terminal separately 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.
[0186] Specifically, the report generation module 1001 may be configured to: receive, via the multiple single TR antennas, the probe signals sent by the target terminal; and analyze, respectively, the probe signals received by the multiple single TR antennas to generate the multiple measurement reports. The method by which the network-side device analyzes the received probe signals is prior art and is not further described herein.
[0187] The specified parameters may include but are not limited to at least one of arrival delay, arrival angle and received signal strength.
[0188] The location determination module 1002 is configured to determine the location information of the target terminal according to the measurement values of the designated parameters in the multiple measurement reports.
[0189] Specifically, the specific process of the location determination module 1002 performing positioning for different application scenarios can refer to the above description of the method embodiment shown in FIG2 , which will not be repeated here.
[0190] The terminal device positioning device 1000 provided in the embodiment of the present application can also execute the method of Figure 2 and achieve the same technical effect, and the embodiment of the present application will not be described in detail here.
[0191] In short, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
[0192] The systems, devices, modules, or units described in the above embodiments may be implemented by computer chips or entities, or by products having 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 smartphone, 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.
[0193] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The 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 disc read-only memory (CD-ROM), digital versatile disc (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 transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.
[0194] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.
[0195] The various embodiments in this application are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiment is generally similar to the method embodiment, so the description is relatively simple. For relevant parts, refer 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
Patent Citations
Positioning method based on single base station, base station, electronic device and storage medium
CN112462354A
Positioning method based on distributed antenna
CN1844948A
Position estimation method and position estimation apparatus
US11265841B2
Reporting downlink reference signals associated with multiple antenna panels
US20220116173A1
Positioning request method, positioning request device and positioning request program
US20220303938A1