CN111507618A - Method and device for checking longitude and latitude of cell and storage medium - Google Patents
Method and device for checking longitude and latitude of cell and storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a method, a device and a storage medium for checking longitude and latitude of a cell, wherein the method comprises the steps of obtaining a measurement report of terminal equipment included in at least one grid of a first cell, obtaining a first distance between each grid and the first cell according to a first time advance in the measurement report in each grid, obtaining a second distance between each grid and the first cell according to the longitude and latitude of each grid and the longitude and latitude of a first cell parameter, and obtaining the actual distance between each grid and the first cell according to the first distance obtained by calculating the time advance. According to the embodiment of the application, the labor cost for checking whether the I-reference longitude and latitude of the first cell are abnormal can be saved, and the checking efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for checking longitude and latitude of a cell and a storage medium.
Background
The wireless network quality analysis is a process of evaluating the quality of a wireless network based on certain wireless network indexes according to wireless network parameters acquired from wireless network equipment and terminal equipment. Many wireless network indexes are calculated based on the longitude and latitude of a cell, for example, when measurement report positioning is performed, the longitude and latitude in cell parameters are required to be used for calculating a positioning result. The longitude and latitude of the cell are usually obtained from the cell working parameters, and if the longitude and latitude of the cell working parameters are not accurate, wireless network indexes obtained by calculation based on the longitude and latitude are also inaccurate, so that the evaluation and optimization of the wireless network quality are influenced, for example, the longitude and latitude of the cell working parameters influence the output result of an antenna optimization adjustment scheme.
In the prior art, in order to check whether the longitude and latitude in the cell parameter are accurate, a tester mainly holds a device for testing the longitude and latitude to test the actual longitude and latitude of the cell on site, and then compares the actual longitude and latitude with the longitude and latitude in the cell parameter to determine whether the longitude and latitude in the cell parameter is accurate. However, this approach is time consuming, labor intensive, and inefficient.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a storage medium for checking longitude and latitude of a cell, and aims to solve the problems of time and labor consumption and low efficiency of manual checking by using a tester in the prior art.
In a first aspect, the present invention provides a method for checking longitude and latitude of a cell, where the method includes:
obtaining a measurement report of terminal equipment included in at least one grid of a first cell, wherein the measurement report comprises longitude and latitude of the terminal equipment and a first time advance between the terminal equipment and the first cell;
acquiring a first distance between each grid and the first cell according to a first time advance in a measurement report in each grid;
acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell engineering parameter;
and determining whether the longitude and latitude of the first cell are abnormal according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
Optionally, the determining whether the longitude and latitude of the first cell are abnormal according to a first distance between each grid and the first cell and a second distance between each grid and the first cell includes:
if the target grid with a preset proportion exists in the first cell, determining that the longitude and latitude of the industrial parameter of the first cell are abnormal; the absolute value of the difference between the first distance and the second distance of the target grid is greater than a preset threshold.
Optionally, the first cell has abnormal longitude and latitude, and a second cell having the same site as the first cell exists, and the method further includes:
fitting at least one first circular ring according to the first distance between each grid in the first cell and the first distance between each grid in the second cell and the second cell, wherein the distances corresponding to grids in the first circular ring have the same value;
and acquiring the modified longitude and latitude of the first cell according to the circle center of at least one first ring.
Optionally, the obtaining the modified longitude and latitude of the first cell according to the center of the at least one first ring includes:
acquiring the average value of the longitude and latitude of the circle center of the at least one first ring;
and taking the average value as the corrected longitude and latitude of the first cell.
Optionally, the first cell has abnormal longitude and latitude, and there is no second cell with the same site as the first cell, and the method further includes:
acquiring at least two second circular rings according to a preset inner ring radius and a preset outer ring radius by taking the longitude and latitude of at least two grids in the first cell as the circle center, wherein the preset inner ring radius and the preset outer ring radius are determined according to a first distance between the at least two grids and the first cell;
and acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in the at least two second circular rings.
Optionally, the obtaining the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid located in the at least two second circular rings at the same time includes:
determining the weight of the grids positioned in the at least two second circular rings at the same time according to the number of the measurement reports of the grids positioned at the circle center of each second circular ring; the interval to which the number of the measurement reports of each grid belongs corresponds to a weight, and the larger the value of the starting point of the interval is, the higher the corresponding weight is;
acquiring accumulated weights of the grids positioned in the at least two second circular rings simultaneously according to the weights of the grids positioned in the at least two second circular rings simultaneously; the accumulated weight is the sum of the weights of the grids which are positioned in the at least two second circular rings at the same time;
according to the sorting sequence of the accumulated weight values from high to low, acquiring the longitude and latitude of the first X grids, wherein X is an integer greater than or equal to 1;
and taking the average value of the longitude and latitude of the former X grids as the corrected longitude and latitude of the first cell.
Optionally, the obtaining a measurement report of a terminal device included in at least one grid of the first cell includes:
acquiring a measurement report of terminal equipment in a first cell;
and attributing the measurement report to a grid to which the longitude and latitude of the terminal equipment belong in the first cell according to the longitude and latitude of the terminal equipment.
In a second aspect, the present invention provides a device for checking longitude and latitude of a cell, the device comprising:
an obtaining module, configured to obtain a measurement report of a terminal device included in at least one grid of a first cell, where the measurement report includes a longitude and latitude of the terminal device, and a first timing advance between the terminal device and the first cell;
a processing module, configured to obtain a first distance between each grid and the first cell according to a first time advance in a measurement report in each grid; acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell engineering parameter; and determining whether the longitude and latitude of the first cell are abnormal according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
Optionally, the processing module is specifically configured to determine that the longitude and latitude of the first cell are abnormal when a target grid with a preset ratio exists in the first cell; the absolute value of the difference between the first distance and the second distance of the target grid is greater than a preset threshold.
Optionally, the first cell has abnormal longitude and latitude, and a second cell with the same site as the first cell exists;
the processing module is further configured to fit at least one first circle according to a first distance between each grid in the first cell and a first distance between each grid in the second cell and the second cell; acquiring the modified longitude and latitude of the first cell according to the circle center of at least one first ring; and the distances corresponding to the grids in the first circular ring have the same value.
Optionally, the processing module is further configured to obtain an average value of the longitude and latitude of the center of the at least one first ring; and taking the average value as the corrected longitude and latitude of the first cell.
Optionally, the first cell has abnormal longitude and latitude, and there is no second cell with the same site as the first cell;
the processing module is further configured to obtain at least two second circular rings according to a preset inner ring radius and a preset outer ring radius by taking the longitude and latitude of at least two grids in the first cell as a circle center; acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in the at least two second circular rings; the preset inner ring radius and the preset outer ring radius are determined according to first distances between the at least two grids and the first cell.
Optionally, the processing module is specifically configured to determine, according to the number of measurement reports of grids where the circle center of each second ring is located, weights of grids located in the at least two second rings at the same time; acquiring accumulated weights of the grids positioned in the at least two second circular rings simultaneously according to the weights of the grids positioned in the at least two second circular rings simultaneously; according to the sorting sequence of the accumulated weight values from high to low, acquiring the longitude and latitude of the first X grids, wherein X is an integer greater than or equal to 1; taking the average value of the longitude and latitude of the former X grids as the corrected longitude and latitude of the first cell; the accumulated weight is the sum of the weights of the grids which are positioned in the at least two second circular rings at the same time; the interval to which the number of the measurement reports of each grid belongs corresponds to a weight, and the larger the value of the starting point of the interval is, the higher the corresponding weight is.
Optionally, the obtaining module is specifically configured to obtain a measurement report of a terminal device in a first cell; and attributing the measurement report to a grid to which the longitude and latitude of the terminal equipment belong in the first cell according to the longitude and latitude of the terminal equipment.
In a third aspect, an embodiment of the present invention provides a device for checking longitude and latitude of a cell, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the apparatus to perform the method of any of the first aspects.
In a fourth aspect, the present invention provides a computer-readable storage medium, on which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the method according to any one of the first aspect is implemented.
The method includes obtaining a measurement report of a terminal device included in at least one grid of a first cell, obtaining a first distance between each grid and the first cell according to a first time advance in the measurement report in each grid, and obtaining a second distance between each grid and the first cell according to the longitude and latitude of each grid and the longitude and latitude of a first cell parameter. According to the embodiment of the application, the labor cost for checking whether the I-reference longitude and latitude of the first cell are abnormal can be saved, and the checking efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for checking longitude and latitude of a cell according to an embodiment of the present invention;
FIG. 3 is a schematic view of a grid provided by an embodiment of the present invention;
fig. 4 is a schematic flowchart of another method for checking longitude and latitude of a cell according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a cell according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a method for checking longitude and latitude of a cell according to another embodiment of the present invention;
fig. 7 is a schematic diagram of another cell provided by an embodiment of the present invention;
fig. 8 is a schematic diagram of another cell provided in an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a device for checking longitude and latitude of a cell according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another apparatus for checking longitude and latitude of a cell according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following, terms related to embodiments of the present invention will be described:
and (3) latitude and longitude of the cell: refers to the location of the antenna that the network device covers the cell.
Timing Advance (TA): in the process of sending uplink data by the terminal device, there is a certain time delay in radio frequency transmission due to the distance between the terminal device and the antenna of the network device, and in order to enable the uplink data of the terminal device to reach a cell at an expected time point, the terminal device needs to send data in advance, where the time sent in advance is the time advance. The timing advance is related to the terminal device's distance to the cell. For example, the shorter the distance from the terminal device to the cell, the smaller the timing advance, and the longer the distance from the terminal device to the cell, the larger the timing advance. That is, the timing advance may reflect the distance from the terminal device to the cell. In some embodiments, the time advance may be used to represent the terminal device to cell distance.
In general, the terminal device sends a timing advance measured by itself to the cell through a Measurement Report (MR), so that the cell indicates when the terminal device sends uplink data.
And (3) measurement report: and when the terminal equipment is positioned in the cell coverage area, the terminal equipment actively reports the measurement report to the network equipment or based on the request of the network equipment. The measurement report includes: latitude and longitude of the terminal equipment, time advance and other information.
And (3) cell parameter processing: the cell parameter is the working parameter of the cell, and the cell parameter is configured with the longitude and latitude of the cell, the frequency of the cell and other parameter information.
At present, in a mobile communication network, wireless network quality analysis evaluates the quality of a wireless network by acquiring data from wireless network equipment, terminal equipment and other equipment based on the data, so as to continuously optimize the network and improve the network service quality. For example, in recent years, the quality evaluation of the wireless network has important value based on the application of big data technology in the quality analysis of the wireless network.
The wireless network quality analysis is a process of evaluating the quality of a wireless network based on certain wireless network indexes according to wireless network parameters acquired from wireless network equipment and terminal equipment. Many wireless network indexes are calculated based on the longitude and latitude of a cell, for example, when measurement report positioning is performed, the longitude and latitude in cell parameters are required to be used for calculating a positioning result. The longitude and latitude of the cell are usually obtained from the cell working parameters, and if the longitude and latitude of the cell working parameters are not accurate, wireless network indexes obtained by calculation based on the longitude and latitude are also inaccurate, so that the evaluation and optimization of the wireless network quality are influenced, for example, the longitude and latitude of the cell working parameters influence the output result of an antenna optimization adjustment scheme.
In the prior art, in order to check whether the longitude and latitude in the cell parameter are accurate, a tester mainly holds a device for testing the longitude and latitude to test the actual longitude and latitude of the cell on site, and then compares the actual longitude and latitude with the longitude and latitude in the cell parameter to determine whether the longitude and latitude in the cell parameter is accurate. However, this approach is time consuming, labor intensive, and inefficient.
In view of the above problems, embodiments of the present invention provide a method for checking longitude and latitude of a cell, where a time advance between a terminal device and the cell may accurately reflect a distance from the terminal device to the cell, and therefore, comparing the distance obtained in this manner with a distance from the terminal device to the cell calculated based on the longitude and latitude of the terminal device and the longitude and latitude of a cell parameter may accurately determine whether the longitude and latitude of the cell parameter is abnormal. Compared with the existing mode for judging whether the longitude and latitude in the cell parameter are accurate, the mode provided by the embodiment of the invention can improve the efficiency of judging whether the longitude and latitude in the cell parameter are abnormal, and reduce the cost.
Exemplarily, fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention. As shown in fig. 1, the network management device and the server are included, and the network management device and the server are connected in communication. The network management device can collect the measurement report reported by the terminal device in each cell from the network device side based on the existing technical means, and the server can acquire the measurement report of each cell in the preset time from the network management device side and execute the method of the invention based on the acquired measurement report.
The following describes in detail a technical solution of the method for checking longitude and latitude of a cell provided by the present invention with reference to several specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a schematic flowchart of a method for checking longitude and latitude of a cell according to an embodiment of the present invention. As shown in fig. 2, the method of the present invention may include:
s101, obtaining a measurement report of terminal equipment included in at least one grid of the first cell.
The measurement report comprises longitude and latitude of the terminal equipment and a first time advance between the terminal equipment and the first cell. The longitude and latitude of the terminal device is the measured longitude and latitude of the terminal device when reporting the measurement report to the network device to which the first cell belongs. The first time advance between the terminal device and the first cell is the time advance between the terminal device and the first cell measured when the terminal device reports the measurement report to the network device to which the first cell belongs.
In this step, the coverage area of the first cell includes at least one grid, each grid occupying a certain latitude and longitude range in physical location. When the first cell includes a plurality of grids, the sizes of the grids may be the same or different. The shape of the grid may be circular, square, etc. The adjacent grids can be partially overlapped, namely, positions with the same longitude and latitude are included, and an overlapped area, namely, no position with the same longitude and latitude is included.
For example, taking cell 1 as an example of dividing a square grid with the same size, fig. 3 is a schematic diagram of a grid provided in an embodiment of the present invention. As shown in fig. 3, taking cell 1 as a sector coverage as an example, a part of the grid falls within the coverage of cell 1. If the longitude and latitude measured by a terminal device is located in grid Z shown in fig. 3 when the terminal device located in cell 1 reports a measurement report, the measurement report is a measurement report included in grid Z.
In a possible implementation manner, the server obtains a measurement report of the terminal device in the first cell, and then, the server belongs the measurement report to a grid to which the longitude and latitude of the terminal device in the first cell belong according to the longitude and latitude of the terminal device. For example, in an application scenario as shown in fig. 1, the server may obtain, from the network management device, measurement reports reported by all terminal devices in the first cell for a period of time. For example, the server may send a request to the network management device to request the network management device to send the measurement report of the terminal device in the first cell for a certain period of time to the server; or the network management device may actively send a measurement report of the terminal device in a certain time period of the first cell to the server. And then, the server belongs the measurement report to a grid to which the longitude and latitude of the terminal equipment in the first cell belong according to the longitude and latitude of the terminal equipment carried in the measurement report. It should be understood that the time period mentioned herein can be specifically set according to the user's requirement, for example, one week, one month, etc.
In another possible implementation manner, the server may directly obtain, from the network management device side, the measurement report to the terminal device included in the at least one grid of the first cell. In this implementation, after the network management device performs a measurement report on the terminal device in a certain time period from the network device side in the first cell, the network management device may attribute the measurement report to a grid to which the longitude and latitude of the terminal device in the first cell belong according to the longitude and latitude of the terminal device carried in the measurement report.
It should be understood that the attribution of the measurement report to grid Z as referred to herein may be understood as: mapping the identifier of the measurement report with the identifier of the grid, or adding the measurement report to a measurement report list (or set) corresponding to the grid, and so on.
S102, acquiring a first distance between each grid and a first cell according to the first time advance in the measurement report in each grid.
First, a trusted time advance of each grid may be obtained according to the first time advance in the measurement report in each grid. Wherein the trusted time advance may characterize an average time advance of the grid.
For example, for a certain grid in the first cell, assuming that m measurement reports belong to the grid, the number of each timing advance in the m measurement reports may be counted, and then the number of each timing advance is used as a weight to perform weighted calculation on the timing advances to obtain a trusted timing advance. For example, in m measurement reports, including X1 TA1, X2 TA2, … Xn TAn trusted timing advance is denoted as TAw, and X1+ X2 … Xn ═ m, then:
wherein, TAi is the value of the ith time advance, Xi is the number of the ith time advance, and m is the total number of the measurement reports in the grid, where X1+ X2+ … Xn is m.
In some cases, there are few anomalies in the timing advance values in the measurement reports. For example, assuming that the range of the timing advance is 1-10 under the coverage of the first cell, if the value of the timing advance carried in the measurement report reported by a certain terminal device is 100, it indicates that the timing advance is an abnormal timing advance. For a certain grid, because the number of the abnormal time advances is small, in a possible implementation manner, in order to avoid interference of the abnormal time advances on the trusted time advances and further influence the accuracy of the latitude and longitude check of the cell, only the time advances of which the number is greater than the preset threshold value are weighted and averaged to obtain the trusted time advances.
Secondly, a first distance between each grid and the first cell may be obtained according to the trusted timing advance of each grid. Similar to the timing advance in the above embodiment, the trusted timing advance may substantially indicate a distance from a grid to a cell, and therefore, a first distance between each grid and a first cell may be obtained according to the trusted timing advance of each grid. For example, every 1 trusted time advance may be converted to 78 meters in physical distance, and the trusted time amount of each grid may be multiplied by 78 meters to obtain a first distance of each grid from the first cell.
Continuing with the example of the cell 1 in step S101, if the coverage area of the cell 1 includes 50 grids in total, the trusted timing advance of each of the 50 grids may be obtained according to the first timing advance in the measurement report of the 50 grids; then, according to the trusted time advance of the 50 grids, a first distance between each grid of the 50 grids and the cell 1 is obtained, and the jth first distance is recorded as DTAjAnd j ranges from 1 to 50.
In this step, since the timing advance in the measurement report is measured by the terminal device during cell communication, the timing advance substantially represents the actual distance between the terminal device and the cell, and further, the first distance calculated from the timing advance substantially represents the actual distance between the grid and the cell.
S103, acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell.
The I-parameter longitude and latitude of the first cell come from the I-parameter of the first cell.
The latitude and longitude of each grid can be determined according to the latitude and longitude range divided by each grid, for example, the latitude and longitude of each grid can be the latitude and longitude of any point in the grid, or the latitude and longitude of the center point of the grid can be taken.
Based on the longitude and latitude of the cell parameter and the longitude and latitude of each grid, the distance from each grid to the cell can be calculated, for example, by using the following formula:
Dm＝H*arcos[cos(V1)*cos(V2)*cos(Q1-Q2)+sin(V1)*sin(V2)]
wherein D ismH is the earth radius, Q1 is the longitude of the grid, Q2 is the cell parameter longitude, V1 is the latitude of the grid, and V2 is the cell parameter latitude.
Continuing with the minimums in step S102In the example of the area 1, according to the longitude and latitude of 50 grids in the area 1 and the longitude and latitude of the industrial parameter of the area 1, the second distance between each grid in the 50 grids and the area 1 is respectively obtained, and the jth second distance is recorded as Dmj。
S104, determining whether the longitude and latitude of the first cell are abnormal or not according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
If the longitude and latitude of the first cell parameter are not abnormal, namely the longitude and latitude of the first cell parameter are accurate, the first distance from each grid to the first cell and the second distance from each grid to the first cell should be the same. Therefore, if the first distance between the grid and the first cell and the second distance between the grid and the first cell are different, it can be said that the longitude and latitude of the working parameter of the first cell are abnormal, i.e. the longitude and latitude of the working parameter of the first cell are not accurate.
In a possible implementation manner, if a target grid with a preset proportion exists in a first cell, determining that the longitude and latitude of the first cell are abnormal; and the absolute value of the difference value of the first distance and the second distance corresponding to the target grid is greater than a preset threshold value.
Continuing with the example of cell 1 in step S103, assuming that the preset proportion is 60%, the 50 second distances are respectively differed from the 50 first distances, and then the absolute value is taken. For the jth grid, we can say: dpj＝abs(Dmj-DTAj) Wherein D ispjIs the absolute value of the difference between the first distance and the second distance corresponding to the jth grid.
If there are 30 or more than 30 grids of DpjIf the longitude and the latitude of the industrial parameter of the cell 1 are larger than the preset threshold value, determining that the longitude and the latitude of the industrial parameter are abnormal; otherwise, determining that the I-parameter longitude and latitude of the cell 1 are not abnormal, namely that the I-parameter longitude and latitude of the cell 1 are accurate.
In another possible implementation manner, if the number of the target grids in the first cell is greater than the number of the non-target grids, determining that the longitude and latitude of the first cell are abnormal; the absolute value of the difference value between the first distance and the second distance corresponding to the target grid is greater than a preset threshold value, and the absolute value of the difference value between the first distance and the second distance corresponding to the non-target grid is less than or equal to the preset threshold value.
The method for checking the longitude and latitude of the cell provided by the embodiment of the invention obtains the first distance between each grid and the first cell by obtaining the measurement report of the terminal equipment included in at least one grid of the first cell according to the first time advance in the measurement report in each grid, and obtains the second distance between each grid and the first cell according to the longitude and latitude of each grid and the longitude and latitude of the industrial parameter of the first cell. According to the embodiment of the application, the labor cost for checking whether the I-reference longitude and latitude of the first cell are abnormal can be saved, and the checking efficiency is improved.
On the basis that the above embodiment determines that the longitude and latitude of the working parameter of the first cell are abnormal, the following two embodiments will mainly describe how to obtain the corrected longitude and latitude of the first cell when the longitude and latitude of the working parameter of the first cell is abnormal. In order to better understand the technical solution of the present invention, in the following example of the embodiment, in addition to the cell 1, four cells including the cell 2, the cell 3, and the cell 4 are included, and the station address of the cell 1, the cell 2, and the cell 3 is a (that is, the cell 1, the cell 2, and the cell 3 are co-sited cells), and the station address of the cell 4 is B. The same method as the above embodiment is adopted for the cell 2, the cell 3 and the cell 4, and the longitude and latitude of the working parameters of the cell 2, the cell 3 and the cell 4 are determined to be abnormal.
The first scenario is: there is a second cell with the same site as the first cell, i.e. the first cell and the second cell are co-sited cells. And judging whether the station addresses of the plurality of cells are the same, for example, judging whether the station addresses of the plurality of cells are the same according to the working parameter longitude and latitude of the cells. And if the I-parameter longitude and latitude of the first cell is the same as the I-parameter longitude and latitude of the second cell, the station address is the same. In some embodiments, cells with the same site may also be understood, and the deployment locations of the antennas covering these cells are the same.
Fig. 4 is a flowchart illustrating another method for checking longitude and latitude of a cell according to an embodiment of the present invention. This embodiment will give an emphasis on how to obtain the modified longitude and latitude of the first cell. On the basis of the embodiment shown in fig. 2, as shown in fig. 4, the method may further include:
s201, fitting at least one first circular ring according to the first distance between each grid in the first cell and the first distance between each grid in the second cell and the second cell, wherein the distances corresponding to the grids in the first circular ring have the same value.
Illustratively, cell 1 is referenced by longitude and latitude anomaly, and there are cell 2 and cell 3 with the same site as cell 1. Fig. 5 is a schematic diagram of a cell according to an embodiment of the present invention. As shown in fig. 5, the longitude and latitude of the working parameters of the cell 1, the cell 2 and the cell 3 are all located at a point P1, and the coverage areas of the cell 1, the cell 2 and the cell 3 are all sector areas of 120 degrees, and together form a circular coverage area. Illustratively, a grid of cells 1, 2, and 3 with a first distance R is shown in fig. 5.
In a possible implementation manner, for the grids with the first distance R of the cell 1, the cell 2, and the cell 3, a ring may be fitted, so that the grids with the first distance R are included in the fitted ring as much as possible, and a specific fitting method thereof may refer to an existing algorithm for fitting a ring, which is not described in detail in this embodiment.
In another possible implementation manner, a plurality of first circular rings may also be fitted according to grids with different values of the first distances of the cell 1, the cell 2, and the cell 3. For example, a grid with a first distance smaller than a preset threshold (e.g., 5 × 78m) may be selected, and the first plurality of circles may be fitted with the outer circle radius and the inner circle radius (outer circle radius, inner circle radius) satisfying the following relationship: (5 × 78m,4 × 78m), (4 × 78m,3 × 78m), (3 × 78m,2 × 78m), (2 × 78m,1 × 78m), (1 × 78m,0), wherein (1 × 78m,0) is a circle and can be regarded as a circular ring having an inner ring radius of 0.
S202, acquiring the corrected longitude and latitude of the first cell according to the circle center of at least one first ring.
The cell 1, the cell 2 and the cell 3 jointly form a circular coverage range, and the first distance obtained by calculating the time advance can substantially represent the actual distance between the grid and the cell, and the actual distances between the grids with the same first distance and the corresponding cells are the same; and it is known to those skilled in the art that only the center of the circle has the same distance to each point of the circle. Therefore, the modified longitude and latitude of the first cell can be determined through the circle center of the circular ring fitted by the grids with the same first distance.
For a circle fitted according to the grid with the first distance R in step S301, the longitude and latitude of the circle center of the circle may be taken as the corrected longitude and latitude of the cell 1, the cell 2, and the cell 3, and exemplarily, the point G1 in fig. 5 is the circle center of the circle to be fitted.
For the plurality of rings fitted according to the different values of the first distance in step S301, a possible implementation manner is to obtain an average value of the longitude and latitude of the center of the circle of at least one first ring, and use the average value as the corrected longitude and latitude of the first cell.
Another possible implementation manner is to obtain a weighted average of the longitude and latitude of the center of the at least one first ring, and use the weighted average as the corrected longitude and latitude of the first cell, where the weight may be determined by the number of measurement reports belonging to grids with the same first distance in the first cell and the second cell. For example, the ratio of the number of measurement reports belonging to grids with the same first distance in the first cell and the second cell to the total number of all measurement reports may be used as a weight.
According to the embodiment of the invention, the characteristic that the actual distances between grids and cells can be represented substantially based on the first distance calculated by the time advance is obtained, the actual distances between the grids with the first distance R and the corresponding cells are the same, only the distances between the circle center and each point of the circle are the same, the corrected longitude and latitude of the first cell can be obtained by fitting at least one circular ring and obtaining the corrected longitude and latitude of the first cell according to the circle center of the at least one circular ring.
The second scenario is: and a second cell with the same site as the first cell does not exist, namely the network equipment to which the first cell belongs is radio-frequency remote. And judging whether the station addresses of the plurality of cells are the same, for example, judging according to the working parameter longitude and latitude of the cells, and if a second cell which is the same as the working parameter longitude and latitude of the first cell does not exist, judging that a second cell which is the same as the station address of the first cell does not exist. In some embodiments, it is also understood that the absence of co-sited cells refers to the absence of antennas deployed in the same location as the antennas covering the first cell.
Fig. 6 is a flowchart illustrating a method for checking longitude and latitude of a cell according to another embodiment of the present invention. This embodiment will give an emphasis on how to obtain the modified longitude and latitude of the first cell. On the basis of the embodiment shown in fig. 2, as shown in fig. 6, the method may further include:
s301, taking the longitude and latitude of at least two grids in the first cell as the circle center, and taking the preset inner ring radius and the preset outer ring radius as second circles, wherein the preset inner ring radius and the preset outer ring radius are determined according to the first distance between the at least two grids and the first cell.
Illustratively, cell 4 has an abnormal latitude and longitude and there is no cell with the same site as cell 4. Fig. 7 is a schematic diagram of another cell provided in the embodiment of the present invention. As shown in fig. 7, the longitude and latitude of the working parameter of the cell 4 are located at a point P2, and the coverage area of the cell 4 is a sector area of 120 degrees.
As can be seen from the above embodiments, the first distance substantially represents the actual distances between the grids and the cell, and knowing the longitude and latitude of each grid and the actual distance from each grid to the cell, the outer ring radius and the inner ring radius of the ring may be determined by taking the longitude and latitude of each grid as the center, the corrected longitude and latitude of the cell may fall on these rings, and the higher the overlapping of multiple rings, the higher the possibility that the overlapping point is the corrected longitude and latitude of the cell, for example, the point G2 in fig. 7 is the overlapping point, i.e., the highest possibility that the corrected longitude and latitude of the cell 4 is.
For example, assuming 1 trusted time advance, which may be converted to 78 meters over a physical distance, when the first distance is L (units: meters), the preset inner ring radius may be:
L-0.5×78
the preset outer ring radius may be:
L+0.5×78
and secondly, taking the longitude and latitude of each grid as the center of a circle, and taking the preset inner ring radius and the preset outer ring radius as a second circular ring.
S302, acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in at least two second circular rings.
In a possible implementation manner, the server may determine the weight of the grids located in at least two second rings at the same time according to the number of measurement reports of the grids in which the center of each second ring is located. Then, the server may obtain the accumulated weight of the grids located in the at least two second rings at the same time according to the weight of the grids located in the at least two second rings at the same time. Thus, the server can obtain the longitude and latitude of the first X grids according to the sorting sequence of the accumulated weight from high to low, wherein X is an integer greater than or equal to 1; and taking the average value of the longitude and latitude of the first X grids as the corrected longitude and latitude of the first cell. The accumulated weight is the sum of the weights of the grids positioned in the at least two second circular rings, the interval to which the number of the measurement reports of each grid belongs corresponds to one weight, and the larger the value of the starting point of the interval is, the higher the corresponding weight is.
In this example, the server may further obtain the longitude and latitude of the last X grids according to a sorting order of the accumulated weight values from low to high, where X is an integer greater than or equal to 1; and acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of the first X grids.
For example, taking cell 4 as an example, the weight corresponding to the interval to which the number of measurement reports of each grid belongs may be, for example: when the number of the measurement reports included in the grid where the circle center of the second ring is located is in the interval 1-100, the weight of the grid in the second ring is 1, and when the number of the measurement reports included in the grid where the circle center of the second ring is located is in the interval 101 and 200, the weight of the grid in the second ring is 2, and so on. According to the method, the weight of the grids positioned in at least two second rings at the same time when all grids or part of grids in the cell 4 are taken as the centers of the second rings can be determined.
For the grids in the cell 4 that are simultaneously located in the coverage area of at least two second rings, after the weight of each grid is determined in the foregoing manner, the sum of the weights of the grids can be calculated. For example, for grid C, assuming that grid C is located in 3 second rings and the determined weight of each ring is 2, 1, respectively, the accumulated weight of the grid is 5, which is the accumulated weight of 2, 1. The larger the cumulative weight, the higher the degree of overlap, and the more likely the latitude and longitude of the cell 4 will be in a grid with a larger cumulative weight.
Illustratively, the accumulated weights are sorted from high to low, and the accumulated weights of the grids are sorted from high to low, so as to obtain the longitude and latitude of the grid corresponding to the first X accumulated weights, for example, the longitude and latitude of the grid corresponding to the first 3 accumulated weights may be taken. Then, the average value of the longitude and latitude of the 3 grids can be used as the corrected longitude and latitude of the first cell.
Fig. 8 is a schematic diagram of another cell according to an embodiment of the present invention. As shown in fig. 8, the grid in which the three circular rings are all overlapped is the grid with the highest accumulated weight, and the longitude and latitude after the modification of the first cell can be obtained by calculating the average value of the longitude and latitude of the 3 grids with the highest accumulated weight.
According to another possible implementation manner, according to an intersection point where at least two second circular rings are overlapped, the longitude and latitude of the grid with the largest intersection point is determined as the corrected longitude and latitude of the first cell.
For example, when all grids or part of grids in the cell 4 are taken as the centers of the second rings, a plurality of second rings may be determined, the second rings overlap with each other to form an intersection, and the longitude and latitude of the grid containing the most intersections may be determined as the modified longitude and latitude of the first cell.
The method of the present embodiment may also be applied to the first application scenario.
In the method of this embodiment, a circle is drawn by taking the longitude and latitude of a grid in a first cell as the center of a circle and taking a first distance of the grid as a radius, and the longitude and latitude with the most overlapped circles is determined as the modified longitude and latitude of the first cell. The method can accurately acquire the modified longitude and latitude of the first cell for the cells without the same station address, and compared with the prior art that the actual longitude and latitude of the cells are tested on site by testing personnel, the method can save the labor cost and improve the efficiency of acquiring the modified longitude and latitude.
When the longitude and latitude after the first cell is corrected are obtained, on one hand, the wireless network index of the cell can be calculated based on the longitude and latitude after the cell is corrected, so that the wireless network index of the cell is more accurate, and the accuracy of the evaluation and optimization of the wireless network quality is further improved; on the other hand, the longitude and latitude in the first cell working parameter can be replaced by the corrected longitude and latitude of the first cell so as to correct the longitude and latitude in the first cell working parameter. Of course, the modified longitude and latitude of the first cell may also be applied to any scene that needs to use the longitude and latitude of the cell, which is not described in detail.
In the method for checking longitude and latitude of a cell provided in the embodiment of the present invention, an execution subject for executing the method may be other electronic devices besides the server shown in fig. 1, for example, the execution subject for executing the method may also be a network management device shown in fig. 1, or a network device to which a first cell belongs.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Fig. 9 is a schematic structural diagram of a device for checking longitude and latitude of a cell according to an embodiment of the present invention, where as shown in fig. 9, the device includes: an acquisition module 11 and a processing module 12. Wherein the content of the first and second substances,
an obtaining module 11, configured to obtain a measurement report of a terminal device included in at least one grid of a first cell, where the measurement report includes a longitude and latitude of the terminal device, and a first time advance between the terminal device and the first cell;
a processing module 12, configured to obtain a first distance between each grid and a first cell according to a first time advance in a measurement report in each grid; acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell engineering parameter; and determining whether the longitude and latitude of the first cell are abnormal or not according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
Optionally, in some possible implementations, the processing module 12 is specifically configured to determine that the longitude and latitude of the first cell are abnormal when the target grid in the preset ratio exists in the first cell; the absolute value of the difference between the first distance and the second distance of the target grid is greater than a preset threshold.
Optionally, in some possible implementations, the first cell is configured to participate in the longitude and latitude abnormality, and a second cell having the same site as the first cell exists;
the processing module 12 is further configured to fit at least one first circular ring according to a first distance between each grid in the first cell and the first cell, and a first distance between each grid in the second cell and the second cell; acquiring the modified longitude and latitude of the first cell according to the circle center of at least one first ring; the distances corresponding to the grids in the first ring have the same value.
Optionally, in some possible implementations, the processing module 12 is further configured to obtain an average value of the longitude and latitude of the center of the at least one first ring; and taking the average value as the corrected longitude and latitude of the first cell.
Optionally, in some possible implementations, the first cell is configured to participate in the longitude and latitude abnormity, and there is no second cell with the same site as the first cell;
the processing module 12 is further configured to obtain at least two second circular rings according to a preset inner ring radius and a preset outer ring radius with the longitude and latitude of at least two grids in the first cell as a circle center; acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in at least two second circular rings; the preset inner ring radius and the preset outer ring radius are determined according to first distances between the at least two grids and the first cell.
Optionally, in some possible implementation manners, the processing module 12 is specifically configured to determine, according to the number of measurement reports of grids where the circle center of each second circular ring is located, weights of grids located in at least two second circular rings at the same time; acquiring accumulated weights of the grids positioned in the at least two second circular rings simultaneously according to the weights of the grids positioned in the at least two second circular rings simultaneously; according to the sorting sequence of the accumulated weight values from high to low, acquiring the longitude and latitude of the first X grids, wherein X is an integer greater than or equal to 1; taking the average value of the longitude and latitude of the first X grids as the corrected longitude and latitude of the first cell; the cumulative weight is the sum of the weights of the grids located in the at least two second rings at the same time.
Optionally, in some possible implementations, the obtaining module 11 is specifically configured to obtain a measurement report of a terminal device in a first cell; and according to the longitude and latitude of the terminal equipment, attributing the measurement report to a grid to which the longitude and latitude of the terminal equipment in the first cell belongs.
The device for checking longitude and latitude of a cell according to the embodiment shown in fig. 9 of the present invention may perform the actions of the server in the foregoing method embodiment. For example, the cell latitude and longitude checking device may be the server itself, or may be a chip of the server.
Fig. 10 is a schematic structural diagram of another apparatus for checking longitude and latitude of a cell according to an embodiment of the present invention, as shown in fig. 10, the apparatus includes: a memory 91 and at least one processor 92.
A memory 91 for storing program instructions.
The processor 92 is configured to implement the method for checking longitude and latitude of a cell in the embodiment of the present invention when the program instruction is executed, and the specific implementation principle may refer to the foregoing embodiment, which is not described herein again.
The cell latitude and longitude checking means may further include an input/output interface 93.
The input/output interface 93 may include a separate output interface and input interface, or may be an integrated interface that integrates input and output. The output interface is used for outputting data, the input interface is used for acquiring input data, the output data is a general name output in the method embodiment, and the input data is a general name input in the method embodiment.
The present application further provides a readable storage medium, where an execution instruction is stored in the readable storage medium, and when the execution instruction is executed by at least one processor of the device for checking longitude and latitude of a cell, when the execution instruction is executed by the processor, the method for checking longitude and latitude of a cell in the foregoing embodiment is implemented.
The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the cell latitude and longitude checking device may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the cell latitude and longitude checking device to implement the cell latitude and longitude checking method provided by the various embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. A method for checking longitude and latitude of a cell is characterized by comprising the following steps:
obtaining a measurement report of terminal equipment included in at least one grid of a first cell, wherein the measurement report comprises longitude and latitude of the terminal equipment and a first time advance between the terminal equipment and the first cell;
acquiring a first distance between each grid and the first cell according to a first time advance in a measurement report in each grid;
acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell engineering parameter;
and determining whether the longitude and latitude of the first cell are abnormal according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
2. The method of claim 1, wherein determining whether the first cell parameter longitude and latitude are abnormal according to a first distance from each grid to the first cell and a second distance from each grid to the first cell comprises:
if the target grid with a preset proportion exists in the first cell, determining that the longitude and latitude of the industrial parameter of the first cell are abnormal; the absolute value of the difference between the first distance and the second distance of the target grid is greater than a preset threshold.
3. The method of any of claims 1-2, wherein the first cell is configured to be out of longitude and latitude and there is a second cell having a same site as the first cell, the method further comprising:
fitting at least one first circular ring according to the first distance between each grid in the first cell and the first distance between each grid in the second cell and the second cell, wherein the distances corresponding to grids in the first circular ring have the same value;
and acquiring the modified longitude and latitude of the first cell according to the circle center of at least one first ring.
4. The method of claim 3, wherein the obtaining the modified longitude and latitude of the first cell according to the center of the at least one first ring comprises:
acquiring the average value of the longitude and latitude of the circle center of the at least one first ring;
and taking the average value as the corrected longitude and latitude of the first cell.
5. The method of any of claims 1-2, wherein the first cell is anomalous in longitude and latitude and there is no second cell having the same site as the first cell, the method further comprising:
acquiring at least two second circular rings according to a preset inner ring radius and a preset outer ring radius by taking the longitude and latitude of at least two grids in the first cell as the circle center, wherein the preset inner ring radius and the preset outer ring radius are determined according to a first distance between the at least two grids and the first cell;
and acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in the at least two second circular rings.
6. The method of claim 5, wherein the obtaining the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid simultaneously located in the at least two second rings comprises:
determining the weights of the grids positioned in the at least two second circular rings at the same time according to the number of the measurement reports of the grids in which the circle centers of the second circular rings are positioned, wherein the interval to which the number of the measurement reports of each grid belongs corresponds to one weight, and the larger the value of the starting point of the interval is, the higher the corresponding weight is;
acquiring accumulated weights of the grids positioned in the at least two second circular rings simultaneously according to the weights of the grids positioned in the at least two second circular rings simultaneously; the accumulated weight is the sum of the weights of the grids which are positioned in the at least two second circular rings at the same time;
according to the sorting sequence of the accumulated weight values from high to low, acquiring the longitude and latitude of the first X grids, wherein X is an integer greater than or equal to 1;
and taking the average value of the longitude and latitude of the former X grids as the corrected longitude and latitude of the first cell.
7. The method according to any of claims 1-2, wherein said obtaining a measurement report of a terminal device comprised in at least one grid of the first cell comprises:
acquiring a measurement report of terminal equipment in a first cell;
and attributing the measurement report to a grid to which the longitude and latitude of the terminal equipment belong in the first cell according to the longitude and latitude of the terminal equipment.
8. A device for checking latitude and longitude of a cell, the device comprising:
an obtaining module, configured to obtain a measurement report of a terminal device included in at least one grid of a first cell, where the measurement report includes a longitude and latitude of the terminal device, and a first timing advance between the terminal device and the first cell;
a processing module, configured to obtain a first distance between each grid and the first cell according to a first time advance in a measurement report in each grid; acquiring a second distance from each grid to the first cell according to the longitude and latitude of each grid and the longitude and latitude of the first cell engineering parameter; and determining whether the longitude and latitude of the first cell are abnormal according to the first distance between each grid and the first cell and the second distance between each grid and the first cell.
9. The apparatus according to claim 8, wherein the processing module is specifically configured to determine that the first cell parameter longitude and latitude is abnormal when a preset ratio of the target grid exists in the first cell; the absolute value of the difference between the first distance and the second distance of the target grid is greater than a preset threshold.
10. The apparatus according to any one of claims 8-9, wherein the first cell is configured to be out of longitude and latitude and there is a second cell having the same site as the first cell;
the processing module is further configured to fit at least one first circle according to a first distance between each grid in the first cell and a first distance between each grid in the second cell and the second cell; acquiring the modified longitude and latitude of the first cell according to the circle center of at least one first ring; and the distances corresponding to the grids in the first circular ring have the same value.
11. The apparatus of claim 10, wherein the processing module is further configured to obtain an average value of the longitude and latitude of the center of the at least one first ring; and taking the average value as the corrected longitude and latitude of the first cell.
12. The apparatus of any one of claims 8-9, wherein the first cell is anomalous in longitude and latitude and there is no second cell having the same site as the first cell;
the processing module is further configured to obtain at least two second circular rings according to a preset inner ring radius and a preset outer ring radius by taking the longitude and latitude of at least two grids in the first cell as a circle center; acquiring the modified longitude and latitude of the first cell according to the longitude and latitude of at least one grid positioned in the at least two second circular rings; the preset inner ring radius and the preset outer ring radius are determined according to first distances between the at least two grids and the first cell.
13. The apparatus according to claim 12, wherein the processing module is specifically configured to determine, according to the number of measurement reports of a grid in which a center of each of the second rings is located, a weight of a grid located in the at least two second rings at the same time; acquiring accumulated weights of the grids positioned in the at least two second circular rings simultaneously according to the weights of the grids positioned in the at least two second circular rings simultaneously; according to the sorting sequence of the accumulated weight values from high to low, acquiring the longitude and latitude of the first X grids, wherein X is an integer greater than or equal to 1; taking the average value of the longitude and latitude of the former X grids as the corrected longitude and latitude of the first cell; the accumulated weight is the sum of the weights of the grids which are positioned in the at least two second circular rings at the same time; the interval to which the number of the measurement reports of each grid belongs corresponds to a weight, and the larger the value of the starting point of the interval is, the higher the corresponding weight is.
14. The apparatus according to any of claims 8 to 9, wherein the obtaining module is specifically configured to obtain a measurement report of a terminal device in a first cell; and attributing the measurement report to a grid to which the longitude and latitude of the terminal equipment belong in the first cell according to the longitude and latitude of the terminal equipment.
15. A device for checking longitude and latitude of a cell is characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the apparatus to perform the method of any of claims 1-7.
16. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a processor, implement the method of any one of claims 1-7.
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