A method and apparatus for positioning a repeater, an electronic device, and a storage medium

Abstract

The application provides a method and device for positioning a repeater, electronic equipment and a storage medium. The method comprises collecting average background noise data of cells in a preset area, drawing a frequency domain waveform of the background noise according to the average background noise data, and then determining whether there is repeater-like interference according to the frequency domain waveform. In response to the existence of the repeater-like interference, a cell to be searched for an interference source is obtained, and finally the position of the repeater is positioned according to the cell to be searched for the interference source and a corresponding co-located cell. The application solves the problems that the existing positioning method has low accuracy and work efficiency when judging the type of the interference source and positioning the position of the interference source, and cannot accurately position in the case of multiple interference sources.

Description

Technical Field

[0001] This invention relates to the field of wireless communication, and more particularly to a method, apparatus, electronic device, and storage medium for locating repeaters. Background Technology

[0002] During the evolution of 800M and 900M networks, external uplink interference has always been a significant issue in network deployment and optimization. Uplink interference increases call drop rates, reduces base station coverage, and degrades call quality, severely impacting network metrics and user call quality. External interference mainly includes spurious interference and malfunctions of fixed wireless equipment. In particular, some illegally installed repeaters by users, due to their low price and poor component performance, cause strong uplink interference, often found in urban villages. This is a common problem in low-frequency networks because base stations cannot directly locate these illegally installed repeaters, making interference removal difficult.

[0003] Current technologies typically employ methods to locate uplink interference sources, which require a high level of expertise and experience from network optimization personnel. This over-reliance on the expertise and experience of network optimization personnel limits the accuracy and efficiency in determining the type and location of interference sources. Furthermore, it has the problem of failing to accurately locate multiple interference sources in a given scenario. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art by providing a method, apparatus, electronic device and storage medium for locating repeaters, so as to at least solve the problems that the existing positioning methods have low accuracy and efficiency in determining the type of interference source and locating the location of the interference source, and cannot accurately locate multiple interference sources.

[0005] In a first aspect, the present invention provides a method for locating a repeater station, the method comprising:

[0006] Collect average noise floor data of cells within a preset area, and plot the frequency domain waveform of the noise floor based on the average noise floor data;

[0007] Confirm the presence of repeater-type interference based on the frequency domain waveform;

[0008] In response to the presence of repeater-type interference, the cell containing the interference source to be located is obtained;

[0009] The location of the repeater station is determined based on the cell containing the interference source to be located and the corresponding common positioning cell.

[0010] Further, the step of collecting average noise floor data of cells within a preset area and plotting the frequency domain waveform of the noise floor based on the average noise floor data includes:

[0011] Collect the average noise floor of the Physical Resource Module (PRB) of the cell within the preset area;

[0012] The frequency domain waveform of the noise floor is plotted based on the average noise floor of the PRB.

[0013] Furthermore, the collection of the average noise floor of the Physical Resource Module (PRB) within the preset area specifically includes:

[0014] The average noise floor of a preset number of PRBs in a preset area is collected based on the bandwidth.

[0015] Specifically, when the bandwidth is 5MHz, the preset quantity is 24; when the bandwidth is 10MHz, the preset quantity is 51; and when the bandwidth is 20MHz, the preset quantity is 105.

[0016] Furthermore, the step of confirming the existence of repeater-type interference based on the frequency domain waveform includes:

[0017] When the frequency domain waveform matches any of the following three waveforms, it can be identified as repeater-type interference:

[0018] The frequency domain exhibits a broadband interference waveform;

[0019] In the frequency domain, it exhibits narrowband spike interference;

[0020] The frequency domain exhibits a sawtooth pattern.

[0021] Further, the step of locating the repeater's position based on the cell containing the interference source to be located and the corresponding co-location cell includes:

[0022] S1, based on the cell where the interference source is to be found, select at least three cells within a preset range from the cells where there is repeater-type interference to be found as common positioning cells, form a cell group with the cell where the interference source is to be found, and set the repeater's transmission power.

[0023] S2, Select three cells from the cell group, and determine the path loss corresponding to each cell based on the noise floor value of each of the three selected cells and the first formula;

[0024] S3, use the propagation model to convert the path loss into a first distance, and use the three-point positioning method to initially locate the position of the repeater station based on the first distance;

[0025] S4, use any two cells from the three selected cells and the unselected cells in the cell group to perform positioning, obtain the new repeater location, and calculate the second distance between the new repeater location and the initially located repeater location;

[0026] S5, adjust the transmit power set by the repeater. When the number of adjustments reaches the predetermined number, proceed to step S6; otherwise, return to step S2.

[0027] S6, Select the location with the smallest second distance in step S4 as the final location of the repeater station;

[0028] Furthermore, the first formula is:

[0029] L n =P0-P n +Gr n

[0030] Among them, L n Let Pn represent the path loss between the nth cell and the repeater, and P0 be the transmit power of the repeater. n Gr represents the noise floor value of the nth cell. n Let be the receive gain of the base station corresponding to the nth cell.

[0031] In a second aspect, the present invention provides a repeater positioning device, comprising:

[0032] The processing module is used to collect the average noise floor data of cells within a preset area and to plot the frequency domain waveform of the noise floor based on the average noise floor data.

[0033] The analysis module, connected to the processing module, is used to determine whether repeater-type interference exists based on the frequency domain waveform.

[0034] The lookup module, connected to the analysis module, is used to obtain the cell containing the interference source to be found in response to the presence of repeater interference;

[0035] The positioning module, connected to the search module, is used to locate the repeater location based on the cell containing the interference source to be searched and the corresponding co-location cell.

[0036] Furthermore, the processing module specifically includes:

[0037] The collection unit is used to collect the average noise floor of the physical resource module (PRB) of the cell within a preset area;

[0038] The drawing unit is used to draw the frequency domain waveform of the noise floor based on the average noise floor of the PRB.

[0039] Thirdly, the present invention provides an electronic device comprising: a processor and a memory coupled to the processor; the memory storing a program for a method of locating a repeater that can be run on the processor, wherein when the program for the method of locating a repeater is executed by the processor, the method of locating a repeater described in the first aspect implements the steps of the method of locating a repeater described above.

[0040] Fourthly, the present invention provides a computer storage medium storing a program for a method of locating a repeater, wherein when the program for locating a repeater is executed by a processor, it implements the steps of the method for locating a repeater described in the first aspect.

[0041] This invention provides a method, apparatus, electronic device, and storage medium for locating repeaters. First, it collects average noise floor data of cells within a preset area. Then, it plots the frequency domain waveform of the noise floor based on the average noise floor data. Next, it confirms the presence of repeater-type interference based on the frequency domain waveform. In response to the presence of repeater-type interference, it acquires the cell containing the interference source to be located. Finally, it locates the repeater's position based on the cell containing the interference source and its corresponding co-location cell. This invention plots the frequency domain waveform of the noise floor using the average noise floor data of cells within a preset area and confirms the presence of repeater-type interference based on the frequency domain waveform. Since the average noise floor data indicating repeater-type interference has obvious waveform characteristics in the frequency domain, it can improve the accuracy of interference source type identification and increase work efficiency. Furthermore, locating the repeater's position based on the cell containing the interference source and its corresponding co-location cell improves the accuracy of interference source location and enables accurate location even with multiple repeater-type interference sources. This solves the problems of low accuracy and efficiency in existing positioning methods for determining the type and location of interference sources, and the inability to accurately locate multiple interference sources. Attached Figure Description

[0042] Figure 1 This is a flowchart of a method for locating a repeater according to Embodiment 1 of the present invention;

[0043] Figure 2 This is a frequency domain waveform diagram of broadband interference in a repeater according to Embodiment 1 of the present invention;

[0044] Figure 3 This is a frequency domain waveform diagram of narrowband spike interference in a repeater according to Embodiment 1 of the present invention;

[0045] Figure 4 This is a frequency domain waveform diagram of the sawtooth wave noise floor in Embodiment 1 of the present invention;

[0046] Figure 5 for Figure 1 A flowchart illustrating step S104;

[0047] Figure 6 This is a schematic diagram of the structure of a repeater positioning device according to Embodiment 2 of the present invention;

[0048] Figure 7 This is a schematic diagram of the structure of an electronic device according to Embodiment 3 of the present invention. Detailed Implementation

[0049] To enable those skilled in the art to better understand the technical solution of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0050] It is understood that the specific embodiments and accompanying drawings described herein are merely for explaining the invention and are not intended to limit the invention.

[0051] It is understood that, without conflict, the various embodiments and features in the embodiments of the present invention can be combined with each other.

[0052] It is understood that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, while the parts unrelated to the present invention are not shown in the drawings.

[0053] It is understood that each unit or module involved in the embodiments of the present invention may correspond to only one entity structure, or may be composed of multiple entity structures, or multiple units or modules may be integrated into one entity structure.

[0054] It is understood that the terms "first," "second," etc., in the embodiments of the present invention are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a specific order of objects.

[0055] It is understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of this invention may occur in a different order than that marked in the accompanying drawings.

[0056] It is understood that the flowcharts and block diagrams of this invention illustrate the possible architecture, functions, and operations of systems, apparatuses, devices, and methods according to various embodiments of this invention. Each block in the flowchart or block diagram may represent a unit, module, program segment, or code, containing executable instructions for implementing the specified function. Furthermore, each block or combination of blocks in the block diagram and flowchart can be implemented using a hardware-based system to achieve the specified function, or using a combination of hardware and computer instructions.

[0057] It is understood that the units and modules involved in the embodiments of the present invention can be implemented by software or by hardware. For example, the units and modules can be located in a processor.

[0058] Application Overview

[0059] During the evolution of 800M and 900M networks, external uplink interference has always been a significant issue in network deployment and optimization. Uplink interference increases call drop rates, reduces base station coverage, and degrades call quality, severely impacting network metrics and user call quality. External interference mainly includes spurious interference and malfunctions of fixed wireless equipment. In particular, some illegally installed repeaters by users, due to their low price and poor component performance, cause strong uplink interference, often found in urban villages. This is a common problem in low-frequency networks because base stations cannot directly locate these illegally installed repeaters, making interference removal difficult.

[0060] Current technologies typically employ methods to locate uplink interference sources. These methods heavily rely on the experience and judgment of network optimization personnel, thus demanding a high level of expertise and experience. Furthermore, for an affected cell, the waveform of its interference levels often contains multiple interference sources, each with its own unique patterns and characteristics, requiring different location methods. Existing technologies also utilize network data for location, first collecting interference data from multiple system-side nodes, then identifying the type of interference experienced by each node; next, clustering the locations of system-side nodes experiencing the same type of interference; and finally processing the clustered nodes to calculate the external interference direction and distance, thereby determining the interference location and marking it in a GIS. However, these existing technologies are overly reliant on the expertise and experience of network optimization personnel, resulting in low accuracy and efficiency in identifying and locating interference sources, and failing to accurately locate multiple interference sources.

[0061] To address the aforementioned problems, this application proposes a method, apparatus, electronic device, and storage medium for locating repeaters. The method involves plotting the frequency domain waveform of the noise floor using average noise floor data from cells within a preset area, and then confirming the presence of repeater-type interference based on the frequency domain waveform. Since the average noise floor data indicating repeater-type interference exhibits distinct waveform characteristics in the frequency domain, the accuracy of interference source identification and work efficiency can be improved. Furthermore, locating the repeater's position based on the cell containing the interference source and the corresponding co-location cell enhances the accuracy of interference source location, and accurate location can be achieved even in the presence of multiple repeater-type interferences.

[0062] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0063] Example 1:

[0064] This embodiment provides a method for locating repeaters, such as... Figure 1 As shown, the method includes:

[0065] Step S101: Collect the average noise floor data of cells within a preset area, and plot the frequency domain waveform of the noise floor based on the average noise floor data.

[0066] In this embodiment, the preset area is the region covered by one or more base stations.

[0067] Specifically, the average noise floor of the physical resource module (PRB) of the cell within the preset area is collected, and the frequency domain waveform of the noise floor is plotted based on the average noise floor of the PRB.

[0068] In this embodiment, in order to plot the frequency domain waveform of the noise floor, the noise floor on the base station side is first monitored routinely. After collecting the average noise floor data of the cells in the preset area, the frequency domain waveform of the noise floor is plotted.

[0069] Optionally, the collection of the average noise floor of the Physical Resource Module (PRB) of cells within a preset area specifically includes:

[0070] The average noise floor of a preset number of PRBs in a preset area is collected based on the bandwidth.

[0071] Specifically, when the bandwidth is 5MHz, the preset quantity is 24; when the bandwidth is 10MHz, the preset quantity is 51; and when the bandwidth is 20MHz, the preset quantity is 105.

[0072] In this embodiment, the average noise floor of the collected PRBs can be determined based on the bandwidth. When plotting the frequency domain waveform of the noise floor, a 1-hour interval can be selected as the granularity of the average noise floor. The vertical axis is set to the bandwidth, and the horizontal axis is set to the average noise floor of 1 to N (i.e., a preset number of) PRBs. When the bandwidth is 5MHz, the average noise floor of 24 PRBs is collected; when the bandwidth is 10MHz, the average noise floor of 51 PRBs is collected; and when the bandwidth is 20MHz, the average noise floor of 105 PRBs is collected.

[0073] Step S102: Confirm whether there is repeater-type interference based on the frequency domain waveform.

[0074] Specifically, the frequency domain waveform of the plotted noise floor is compared with the frequency domain waveforms of three typical repeater-type interferences. If the frequency domain waveform of the noise floor matches any of the three typical repeater-type interferences, then it is considered that there is repeater-type interference in the cell within the preset area.

[0075] Optionally, confirming the existence of repeater-type interference based on the frequency domain waveform includes:

[0076] When the frequency domain waveform matches any of the following three waveforms, it can be identified as repeater-type interference:

[0077] The frequency domain exhibits a broadband interference waveform;

[0078] In the frequency domain, it exhibits narrowband spike interference;

[0079] The frequency domain exhibits a sawtooth pattern.

[0080] In this embodiment, three typical repeater-type interference frequency domain waveforms are as follows: Figure 2-4 As shown. Figure 2 This is a frequency domain waveform diagram of broadband interference from repeaters; Figure 3 This is the frequency domain waveform diagram of narrowband spike interference from a repeater; Figure 4 This is a frequency domain waveform diagram of repeater interference that exhibits a sawtooth pattern in the frequency domain. When the frequency domain waveform of the noise floor drawn in step S101 is consistent with any of the three types of repeater interference frequency domain waveforms mentioned above, it can be confirmed as repeater interference. In the frequency domain waveform diagram, the vertical axis is the bandwidth, and the horizontal axis is the average noise floor of the PRB. The frequency domain waveform diagrams of various repeater interferences have their own characteristics. The frequency domain waveform diagram of broadband repeater interference is relatively stable, and the noise floor is raised throughout the entire bandwidth. The frequency domain waveform diagram of narrowband repeater spike interference is generated when the repeater is powered on, as some repeaters are aging and the interference is unrelated to external signals. The PRB position of the spike of the same interference source is relatively fixed, while the PRB position of the spike of different interference sources may be different. The frequency domain waveform diagram of repeater interference exhibiting a sawtooth pattern has a small variance in the noise floor throughout the entire bandwidth, with the maximum difference in the noise floor level of the RB is about 7dB.

[0081] Step S103: In response to the presence of repeater-type interference, obtain the cell from which the interference source is to be found.

[0082] Specifically, the frequency domain waveform of the noise floor is plotted based on the average noise floor data of each cell. If the frequency domain waveform of the noise floor of a certain cell is consistent with any of the three types of repeater interference frequency domain waveforms, the cell is confirmed to have repeater interference, and the cell is the cell where the interference source is to be found.

[0083] Step S104: Locate the repeater station based on the cell containing the interference source to be found and the corresponding common positioning cell.

[0084] Furthermore, the location of the repeater station is determined based on the cell containing the interference source to be located and the corresponding co-location cell, as described above. Figure 5 As shown, the specific steps include:

[0085] S1, based on the cell where the interference source is to be found, select at least three cells within a preset range from the cells where there is repeater-type interference to be found as common positioning cells, form a cell group with the cell where the interference source is to be found, and set the repeater's transmission power.

[0086] Specifically, based on the cell where the interference source is to be located, three cells within 1000 meters of the cell with the same interference type are selected as common location cells and identified as being affected by the same interference source. Meanwhile, to avoid the impact of traffic volume on the noise floor, PRB noise floor data of each cell can be collected at 5:00 AM for interference localization.

[0087] S2, select three cells from the cell group, and determine the path loss corresponding to each cell based on the noise floor value of each of the three selected cells and the first formula.

[0088] Specifically, the first formula is:

[0089] L n =P0-P n +Gr n

[0090] Among them, L n Let Pn represent the path loss between the nth cell and the repeater, and P0 be the transmit power of the repeater. n Gr represents the noise floor value of the nth cell. n Let be the receive gain of the base station corresponding to the nth cell.

[0091] In this step, the path loss consists of three parts, including the repeater's transmit power (denoted by P0), the cell's noise floor (denoted by P), and the signal strength of the repeater. n (represented by Gr) the receive gain of the base station corresponding to the cell (in Gr) n (represented by L), the road loss corresponding to the community (represented by L). n (represented as: L) n =P0-P n +Gr n The repeater's transmission power is set manually or by the system. The cell's noise floor varies depending on the type of interference. For broadband interference, P n This represents the average noise floor of the corresponding cell, i.e., the average noise floor of each PRB; for narrowband spike interference, P n To correspond to the intensity of peaks in the cell noise floor data, if there are peaks at multiple PRB locations, the intensity of the peak at each PRB location is treated as a set of data, and the location results are calculated sequentially, because there may be multiple interference sources; for sawtooth noise floor, P n This represents the average noise floor of the corresponding cell, i.e., the average noise floor of each PRB.

[0092] S3, use the propagation model to convert the path loss into a first distance, and use the three-point positioning method to initially locate the position of the repeater station based on the first distance;

[0093] Specifically, the Okumura-Hata model is preferred for propagation.

[0094] S4, use any two cells from the three selected cells and the unselected cells in the cell group to perform positioning, obtain the new repeater location, and calculate the second distance between the new repeater location and the initially located repeater location;

[0095] S5, adjust the transmit power set by the repeater. When the number of adjustments reaches the predetermined number, proceed to step S6; otherwise, return to step S2.

[0096] S6. Select the location with the smallest second distance in step S4 as the final location of the repeater.

[0097] In this embodiment, average noise floor data of cells within a preset area is collected. Then, based on the frequency domain waveform plotted from the average noise floor data, it is determined whether repeater-type interference exists within the area. The path loss between each cell and the repeater is calculated, and a propagation model is used to convert the path loss into distance. The repeater's location is then calculated using a three-point positioning method. Finally, the distances between two cells whose repeater locations have been determined and the unselected cells within the cell group are calculated, and three-point positioning is performed for correction. This method improves the accuracy and efficiency of personnel in determining the type and location of interference sources, and enables accurate positioning even when multiple interference sources exist in the scenario.

[0098] In a specific embodiment, taking an average noise floor of 51 elements for a bandwidth of 10MHz, the method for locating a repeater may include the following steps:

[0099] (1) Perform routine monitoring of base station noise floor in the cell, collect the average noise floor of each PRB, and plot the frequency domain waveform of the noise floor. When the frequency domain waveform of the noise floor is a broadband interference waveform, a narrowband spike interference waveform, or a sawtooth shape, it can be confirmed as repeater interference, and the corresponding cell is the cell where the interference source is to be found.

[0100] (2) Based on the cell where the interference source is to be found, select at least three cells within 1000 meters of the cell with the same interference type as common location cells, form a cell group, and identify them as being affected by the same interference source.

[0101] (3) First, set the transmit power of the repeater to P0, and the noise floor values ​​of cells 1 to 3 to be P1 to P3. The values ​​of P1 to P3 vary depending on the type of interference. For broadband interference, P1 to P3 are the average noise floor of cells 1 to 3, that is, the average noise floor of each PRB; for narrowband spike interference, P1 to P3 are the intensity of the spike. If there are spikes at multiple PRB locations, the intensity of the spike at each PRB location is taken as a set of data, and the location result is calculated sequentially, because there may be multiple interference sources; for sawtooth noise floor, P1 to P3 are the average noise floor of cells 1 to 3.

[0102] (4) Calculate road loss:

[0103] L1=P0-P1+Gr1, L2=P0-P2+Gr2, L3=P0-P3+Gr3.

[0104] Gr1, Gr2, and Gr3 represent the base station's receive gain, measured in dB, and can be obtained from the cell's operating parameters.

[0105] (5) Select a propagation model to convert road loss into distance, taking the Okumura-Hata model as an example, but not limited to this model.

[0106] (a) Urban scene:

[0107] L1=69.55+26.16lg(f)-13.82lg(ht1)-a(hm)+[44.9-6.55lg(ht1)]lgd1

[0108] Where f is the operating frequency, in MHz;

[0109] ht1 is the height of base station 1 in cell 1, in meters, which can be obtained from engineering parameters;

[0110] hm is the repeater height in meters, which can be taken as the average repeater height found in the area where the interference source is to be found.

[0111] d1 is the distance between cell 1 base station and repeater station, in km.

[0112] The repeater antenna height factor α(hm) is given by the following formula:

[0113]

[0114] (b) Suburban scene:

[0115] L1=69.55+26.16lg(f)-13.82lg(ht1)+[44.9-6.55lg(ht1)]lgd1+Kmr

[0116] in,

[0117] (c) Open rural scenes:

[0118] L1=69.55+26.16lg(f)-13.82lg(ht1)+[44.9-6.55lg(ht1)]lgd1+Ru

[0119] Where, Ru = -4.78 × lg 2 (f)+18.33×lg(f)-40.94.

[0120] Using this method, the distances d2 and d3 between the base stations of cell 2 and cell 3 and the repeater are calculated.

[0121] (6) Given the coordinates of the three base stations, the location of the interference source is determined using the three-point positioning method. The base stations are labeled as base station 1, base station 2, and base station 3. The positions of base stations 1-3 are (X1, Y1, Z1), (X2, Y2, Z2), and (X3, Y3, Z3), respectively. The position of the repeater is (x, y, z).

[0122] but

[0123]

[0124] Where n is the base station number, the repeater location (x, y, z) can be calculated based on the above equation.

[0125] (7) Introduce cell 4, which is affected by the same interference source, to calibrate the location of the interference source. Use cells 1, 2, and 4 to perform steps (1)-(6) to obtain the new location of the interference source (i.e., the repeater location). Calculate the distance Δd between the two interference sources. Adjust the repeater multiple times, assuming the transmit power P0, and repeat steps (1)-(6) to calculate a set of interference source distances (Δd1, Δd2, Δd3, ..., Δd...). N ), where N is the number of times the repeater power is adjusted. The location with the smallest distance Δd from the interference source is selected as the final interference source location, and the corresponding interference source power is set to be the closest to the actual transmission power.

[0126] (8) If there are multiple groups P1 to P4 in the cell group, repeat steps (2) to (7) to locate the interference source. If the distance between the location result and the location of the already located interference source exceeds the preset threshold, it is identified as another interference source, and it is confirmed that there are multiple repeater interferences in the cell.

[0127] This invention provides a method for locating repeaters. First, it collects average noise floor data of cells within a preset area. Then, it plots the frequency domain waveform of the noise floor based on the average noise floor data. Next, it confirms the presence of repeater-type interference based on the frequency domain waveform. In response to the presence of repeater-type interference, it obtains the cell containing the interference source to be located. Finally, it locates the repeater's position based on the cell containing the interference source and its corresponding co-location cell. This invention plots the frequency domain waveform of the noise floor using the average noise floor data of cells within a preset area and confirms the presence of repeater-type interference based on the frequency domain waveform. Since the average noise floor data indicating repeater-type interference has obvious waveform characteristics in the frequency domain waveform, it can improve the accuracy of interference source type identification and increase work efficiency. Furthermore, locating the repeater's position based on the cell containing the interference source and its corresponding co-location cell improves the accuracy of interference source location and enables accurate location even in cases of multiple repeater-type interference sources. This solves the problems of existing positioning methods having low accuracy and efficiency in identifying and locating interference sources, and the inability to accurately locate multiple interference sources.

[0128] Example 2:

[0129] like Figure 6 As shown, this embodiment provides a repeater positioning device for performing the above-described method for locating a repeater, including:

[0130] Processing module 601 is used to collect average noise floor data of cells within a preset area and draw frequency domain waveforms of the noise floor based on the average noise floor data;

[0131] Analysis module 602, connected to processing module 601, is used to confirm whether repeater-type interference exists based on the frequency domain waveform;

[0132] The lookup module 603, connected to the analysis module 602, is used to obtain the cell containing the interference source to be found in response to the presence of repeater interference.

[0133] The positioning module 604 is connected to the search module 603 and is used to locate the repeater location based on the cell of the interference source to be searched and the corresponding co-location cell.

[0134] Optionally, the processing module 601 specifically includes:

[0135] The collection unit is used to collect the average noise floor of the physical resource module (PRB) of the cell within a preset area;

[0136] The drawing unit is used to draw the frequency domain waveform of the noise floor based on the average noise floor of the PRB.

[0137] Optionally, the collection unit is specifically used for:

[0138] The average noise floor of a preset number of PRBs in a preset area is collected based on the bandwidth.

[0139] Specifically, when the bandwidth is 5MHz, the preset quantity is 24; when the bandwidth is 10MHz, the preset quantity is 51; and when the bandwidth is 20MHz, the preset quantity is 105.

[0140] Optionally, the analysis module 602 is specifically used for:

[0141] When the frequency domain waveform matches any of the following three waveforms, it can be identified as repeater-type interference:

[0142] The frequency domain exhibits a broadband interference waveform;

[0143] In the frequency domain, it exhibits narrowband spike interference;

[0144] The frequency domain exhibits a sawtooth pattern.

[0145] Optionally, the positioning module 604 specifically includes:

[0146] The processing unit is configured to, based on the cell where the interference source to be found is located, select at least three cells within a preset range from the cells where repeater-type interference exists as common positioning cells, form a cell group with the cell where the interference source to be found is located, and set the transmit power of the repeater.

[0147] The selection calculation unit is used to select three cells from the cell group and determine the path loss corresponding to each cell based on the noise floor value of each of the three selected cells in combination with the first formula.

[0148] The first calculation unit is used to convert the path loss into a first distance using a propagation model, and to initially locate the position of the repeater station using a three-point positioning method based on the first distance.

[0149] The second calculation unit is used to perform localization using any two cells from the three selected cells and the unselected cells in the cell group to obtain the location of the new repeater, and to calculate the second distance between the new repeater location and the initially located repeater location.

[0150] The control unit is used to adjust the transmit power set by the repeater. When the number of adjustments reaches a predetermined number, the judgment unit is executed; otherwise, the process returns to the selection calculation unit.

[0151] The judgment unit is used to select the location with the smallest second distance in the second calculation unit as the final location of the repeater.

[0152] Optionally, the first formula is:

[0153] L n =P0-P n +Gr n

[0154] Among them, L n Let Pn represent the path loss between the nth cell and the repeater, and P0 be the transmit power of the repeater. n Gr represents the noise floor value of the nth cell. n Let be the receive gain of the base station corresponding to the nth cell.

[0155] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0156] The apparatus of the above embodiments is used to implement the multicast source selection method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0157] Example 3:

[0158] refer to Figure 7 This embodiment provides an electronic device, including: a processor 701, and a memory 702 coupled to the processor 701; the memory 702 stores a program for a method of locating a repeater that can run on the processor 701, and when the program for the method of locating a repeater is executed by the processor 701, it implements the steps of the method of locating a repeater as described in any of the foregoing embodiments. Although the above device only shows the processor 701 and the memory 702, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above device may only include the components necessary for implementing the embodiments of the specification, and does not necessarily include all the components shown in the figures.

[0159] Example 4:

[0160] This embodiment provides a computer storage medium storing a computer program, which, when executed by a processor, implements the method for locating repeaters in Embodiment 1 above.

[0161] The computer storage medium includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). Computer storage media includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technologies, CD-ROM (CompactDisc Read-Only Memory), DVD or other optical disc storage, cartridges, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer.

[0162] In summary, the present invention provides a method, apparatus, electronic device, and storage medium for locating repeaters. First, it collects average noise floor data of cells within a preset area. Then, it plots the frequency domain waveform of the noise floor based on the average noise floor data. Next, it confirms the presence of repeater-type interference based on the frequency domain waveform. In response to the presence of repeater-type interference, it acquires the cell containing the interference source to be located. Finally, it locates the repeater's position based on the cell containing the interference source to be located and its corresponding co-location cell. This invention plots the frequency domain waveform of the noise floor using the average noise floor data of cells within a preset area and confirms the presence of repeater-type interference based on the frequency domain waveform. Since the average noise floor data containing repeater-type interference has obvious waveform characteristics in the frequency domain waveform, it can improve the accuracy of interference source type identification and increase work efficiency. Furthermore, locating the repeater's position based on the cell containing the interference source to be located and its corresponding co-location cell can improve the accuracy of interference source location and achieve accurate location even in the case of multiple repeater-type interference sources. This solves the problems of existing positioning methods having low accuracy and work efficiency in determining the type and location of interference sources, and the inability to accurately locate multiple interference sources.

[0163] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A method for locating a repeater station, characterized in that, include: Collect average noise floor data of cells within a preset area, and plot the frequency domain waveform of the noise floor based on the average noise floor data; Confirm the presence of repeater-type interference based on the frequency domain waveform; In response to the presence of repeater-type interference, the cell containing the interference source to be located is obtained; The location of the repeater station is determined based on the cell containing the interference source to be located and the corresponding co-location cell. The step of locating the repeater's position based on the cell containing the interference source to be located and the corresponding co-location cell includes: S1, based on the cell where the interference source is to be found, select at least three cells within a preset range from the cells where there is repeater-type interference to be found as common positioning cells, form a cell group with the cell where the interference source is to be found, and set the repeater's transmission power. S2, Select three cells from the cell group, and determine the path loss corresponding to each cell based on the noise floor value of each of the three selected cells and the first formula. The noise floor value of the cell varies depending on the type of interference: when the interference type is broadband interference or sawtooth noise floor, the noise floor value of the cell is the average noise floor of the corresponding cell; when the interference type is narrowband spike interference, the noise floor value of the cell is the intensity of the spike in the noise floor data of the corresponding cell. S3, use the propagation model to convert the path loss into a first distance, and use the three-point positioning method to initially locate the position of the repeater station based on the first distance; S4, use any two cells from the three selected cells and the unselected cells in the cell group to perform positioning, obtain the new repeater location, and calculate the second distance between the new repeater location and the initially located repeater location; S5, adjust the transmit power set by the repeater. When the number of adjustments reaches the predetermined number, proceed to step S6; otherwise, return to step S2. S6. Select the location with the smallest second distance in step S4 as the final location of the repeater.

2. The method according to claim 1, characterized in that, The process of collecting average noise floor data of cells within a preset area and plotting the frequency domain waveform of the noise floor based on the average noise floor data includes: Collect the average noise floor of the Physical Resource Module (PRB) of the cell within the preset area; The frequency domain waveform of the noise floor is plotted based on the average noise floor of the PRB.

3. The method according to claim 2, characterized in that, The collection of the average noise floor of the Physical Resource Module (PRB) of cells within the preset area specifically includes: The average noise floor of a preset number of PRBs in a preset area is collected based on the bandwidth. Specifically, when the bandwidth is 5MHz, the preset quantity is 24; when the bandwidth is 10MHz, the preset quantity is 51; and when the bandwidth is 20MHz, the preset quantity is 105.

4. The method according to claim 1, characterized in that, The step of confirming the existence of repeater-type interference based on the frequency domain waveform includes: When the frequency domain waveform matches any of the following three waveforms, it can be identified as repeater-type interference: The frequency domain exhibits a broadband interference waveform; In the frequency domain, it exhibits narrowband spike interference; The frequency domain exhibits a sawtooth pattern.

5. The method according to claim 1, characterized in that, The first formula is: Among them, L n Let Pn represent the path loss between the nth cell and the repeater, and P0 be the transmit power of the repeater. n Gr represents the noise floor value of the nth cell. n Let be the receive gain of the base station corresponding to the nth cell.

6. A repeater positioning device, characterized in that, include: The processing module is used to collect the average noise floor data of cells within a preset area and to plot the frequency domain waveform of the noise floor based on the average noise floor data. The analysis module, connected to the processing module, is used to determine whether repeater-type interference exists based on the frequency domain waveform. The lookup module, connected to the analysis module, is used to obtain the cell containing the interference source to be found in response to the presence of repeater interference; The positioning module, connected to the search module, is used to locate the repeater location based on the cell containing the interference source to be searched and the corresponding co-location cell. The positioning module specifically includes: The processing unit is configured to, based on the cell where the interference source to be found is located, select at least three cells within a preset range from the cells where repeater-type interference exists as common positioning cells, form a cell group with the cell where the interference source to be found is located, and set the transmit power of the repeater. The selection calculation unit is used to select three cells from the cell group and determine the path loss corresponding to each cell based on the noise floor value of each of the three selected cells and the first formula. The noise floor value of the cell varies depending on the type of interference: when the interference type is broadband interference or sawtooth noise floor, the noise floor value of the cell is the average noise floor of the corresponding cell; when the interference type is narrowband spike interference, the noise floor value of the cell is the intensity of the spike in the noise floor data of the corresponding cell. The first calculation unit is used to convert the path loss into a first distance using a propagation model, and to initially locate the position of the repeater station using a three-point positioning method based on the first distance. The second calculation unit is used to perform localization using any two cells from the three selected cells and the unselected cells in the cell group to obtain the location of the new repeater, and to calculate the second distance between the new repeater location and the initially located repeater location. The control unit is used to adjust the transmit power set by the repeater. When the number of adjustments reaches a predetermined number, the judgment unit is executed; otherwise, the process returns to the selection calculation unit. The judgment unit is used to select the location with the smallest second distance in the second calculation unit as the final location of the repeater.

7. The apparatus according to claim 6, characterized in that, The processing module specifically includes: The collection unit is used to collect the average noise floor of the physical resource module (PRB) of the cell within a preset area; The drawing unit is used to draw the frequency domain waveform of the noise floor based on the average noise floor of the PRB.

8. An electronic device, characterized in that, The device includes: a processor, and a memory coupled to the processor; the memory stores a program for a method of locating a repeater that can run on the processor, the program for the method of locating a repeater implementing the steps of the method of locating a repeater as described in any one of claims 1-5 when executed by the processor.

9. A computer storage medium, characterized in that, A program storing a method for locating a repeater, wherein when the program for locating a repeater is executed by a processor, it implements the steps of the method for locating a repeater as described in any one of claims 1-5.

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