CN108111965B - Method and device for determining position of base station - Google Patents

Abstract

The embodiment of the present invention discloses a method for determining the location of a base station. The method includes: according to the obtained work parameter data of each user terminal UE, looking up a table to obtain the latitude and longitude of each neighboring cell base station of each UE, The UEs are divided into a group; according to the reference signal received power RSRP of the base station in the main area, the RSRP and the transmit power of each adjacent base station in the working parameter data of each UE in each group, determine each UE in each group to the main area The path loss of the base station and the path loss from each UE in each group to each neighbor base station; according to the latitude and longitude of each neighbor cell base station of each UE in each group and the path from each UE in each group to each neighbor cell base station Loss, determine the location information of each UE in each group; determine the main area of each UE in each group according to the location information of each UE in each group and the path loss from each UE in each group to the base station in the main area Location information of the base station. The embodiment of the present invention also discloses a device for determining the location of a base station.

Description

A method and device for determining the location of a base station

technical field

The present invention relates to the technical field of data communication, and in particular, to a method and device for determining the location of a base station.

Background technique

Nowadays, as the basic equipment of data communication, the base station is of great significance, and the detection of the actual engineering parameters of the base station has always been the focus of research.

In the prior art, there are a variety of methods for detecting the actual engineering parameters of the base station to determine the position of the base station. The first method is manual on-site detection, and the latitude and longitude of the base station is checked through a global positioning system (GPS, Global Positioning System) and a spirit level. and azimuth, but this method has a large workload for the entire network, and can only spot check some sites, cannot perform regular check of the latitude and longitude of base stations in the entire network, and cannot efficiently support the daily optimization project of the network; the second is based on the parameter measurement report. The signal transmission delay (TA, Timing Advance) and the signal arrival angle (AOA, Arrival of Angle) are used to distinguish the azimuth and the base station latitude and longitude, but using this method, the buildings in the city are dense, and the signal reflection and diffraction environment are rich. TA+AOA cannot truly reflect the positional relationship between the terminal and the base station, resulting in a large detection error; the third method is to calculate the base station correlation degree based on the number of times the terminal switches between different systems, and the order of the switching frequency is related to the geographic information system (GIS, Geographic Information System) correlation degree does not match to detect the latitude and longitude of the base station, but using this method, the switching frequency depends on the relationship of the configured adjacent cells, and the relationship between adjacent cells has the problem of missing matches and mismatches, thereby reducing the accuracy of detection; It can be seen that, in the prior art, there is a technical problem of low detection efficiency when the location of the base station is determined to determine the location of the base station.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present invention are expected to provide an apparatus for a method for determining the location of a base station, so as to solve the technical problem of low detection efficiency in the prior art when the location of the base station is detected to determine the location of the base station, and improve the detection efficiency of the location of the base station. detection efficiency.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

In the first aspect, an embodiment of the present invention provides a method for determining the location of a base station, including: according to the obtained work parameter data of each user terminal UE, looking up a table to obtain the longitude and latitude of each neighboring cell base station of each UE, and will have the same main base station. The UEs of the base station in the area are divided into a group; according to the reference signal received power RSRP of the base station in the main area, the RSRP and the transmit power of the base station in each adjacent area in the working parameter data of each UE in each group, determine each group in each group. The path loss from each UE to the base station in the main cell and the path loss from each UE in each group to each adjacent cell base station; according to the latitude and longitude of each adjacent cell base station of each UE in each group and The path loss from each UE to each neighboring base station is determined, and the location information of each UE in each group is determined; according to the location information of each UE in each group and the location information of each UE in each group to the main The path loss of the base station in the area is used to determine the location information of the base station in the main area of each UE in each group.

Further, according to the longitude and latitude of each neighboring cell base station of each UE in each group and the path loss from each UE in each group to each neighboring cell base station, determine each UE in each group. the location information, including: rasterizing the preset area including the longitude and latitude of each neighboring cell base station of each UE in each group; The obtained antenna azimuth angle corresponding to each neighboring cell base station of each UE in each group is obtained, and the standard propagation model SPM is used to determine the path loss from each grid to each neighboring cell base station; The position information of each UE in each group is determined by calculating the path loss to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station.

Further, according to the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station, determine each group in each group. The location information of each UE, including: the absolute difference between the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station value, determine the grid position information corresponding to the minimum value of the absolute values of each difference value as the position information of each UE in each group; or, according to each grid to each neighbor The path loss of the cell base station and the path loss from each UE in each group to each neighboring cell base station are determined using the least squares method to determine the location information of each UE in each group.

Further, according to the location information of each UE in each group and the path loss from each UE in each group to the main area base station, the location of the main area base station of each UE in each group is determined. information, including: according to the path loss of each UE in each group to the base station in the main area, using the SPM propagation model to determine the distance from each UE in each group to the base station in the main area; The distance from each UE to the base station in the main area and the location information of each UE in each group determine the location information of the base station in the main area for each UE in each group.

Further, according to the obtained work parameter data of each user terminal UE, look up a table to obtain the latitude and longitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into a group, including: according to the obtained The frequency point of the base station in the main area and the physical cell identifier PCI in the working parameter data of each UE, look up the table to obtain the base station identifier of the main area of each UE, and according to the obtained working parameter data of each UE, the base station frequency of each neighboring area is Point and PCI, look up the table to obtain the longitude and latitude of each neighboring cell base station of each UE; according to the main cell base station identification of each UE, the UEs with the same main cell base station identification are divided into a group.

In a second aspect, an embodiment of the present invention provides an apparatus for determining the location of a base station, including: a division module, configured to look up a table to obtain the longitude and latitude of each neighboring cell base station of each UE according to the acquired work parameter data of each user terminal UE , the UEs with the same base station in the main area are divided into a group; the first determination module is used for the reference signal received power RSRP of the base station in the main area and the RSRP of each adjacent base station in the working parameter data of each UE in each group. and transmit power, and determine the path loss from each UE in each group to the base station in the main cell and the path loss from each UE in each group to each neighboring cell base station; the second determining module is used to determine the path loss according to the The latitude and longitude of each neighbor cell base station of each UE in each group and the path loss from each UE in each group to each neighbor cell base station, determine the location information of each UE in each group; the third determination module , which is used to determine the location information of the main area base station of each UE in each group according to the location information of each UE in each group and the path loss from each UE in each group to the main area base station.

Further, the second determining module includes: a grid sub-module, configured to grid a preset area including the longitude and latitude of each neighboring cell base station of each UE in each group; the first determining sub-module, For the antenna azimuth corresponding to each adjacent cell base station of each UE in each group obtained according to the longitude and latitude of each adjacent cell base station of each UE in each group and the table look-up, using the standard propagation model SPM, determine Calculate the path loss from each grid to each neighboring cell base station; the second determination submodule is used to determine the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station. The path loss of each neighboring cell base station is determined, and the location information of each UE in each group is determined.

Further, the second determination sub-module is specifically configured to calculate the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station. The absolute value of each difference value, the grid position information corresponding to the minimum value in the absolute value of each difference value is determined as the position information of each UE in each group; or, according to each grid The path loss to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station are determined using the least squares method to determine the location information of each UE in each group.

Further, the third determining module is specifically configured to determine, according to the path loss of each UE in each group to the base station in the main area, using the SPM propagation model, to determine the distance between each UE in the group and the base station in the main area. Distance: According to the distance from each UE in each group to the base station in the main area and the location information of each UE in each group, determine the location information of the base station in the main area of each UE in each group.

Further, the division module is specifically configured to obtain the main area base station identifier of each UE according to the obtained main area base station frequency point and physical cell identity PCI in the obtained work parameter data of each UE, according to the obtained The frequency point and PCI of each neighboring cell base station in the working parameter data of each UE, and look up the table to obtain the latitude and longitude of each neighboring cell base station of each UE; The UEs are divided into a group.

In the method and device for determining the location of a base station provided by the embodiments of the present invention, firstly, according to the acquired working parameter data of each user terminal (UE, User Equipment), look up a table to obtain the longitude and latitude of each neighboring cell base station of each UE, and will have The UEs of the same main area base station are divided into a group; in this way, the UEs divided into a group correspond to the same main area base station, and then, according to the RSRP of the main area base station, each adjacent base station in the working parameter data of each UE in each group Based on the RSRP and transmit power of the base station in the area, the path loss from each UE in each group to the base station in the main area and the path loss from each UE in each group to each adjacent base station are determined; secondly, according to the path loss of each UE in each group The latitude and longitude of each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station are used to determine the location information of each UE in each group; The location information of each UE, and finally, according to the location information of each UE in each group and the path loss from each UE in each group to the base station in the main area, use the distance formula between two points to form an equation group, and determine each group The location information of each UE's base station in the main area; the embodiment of the present invention first groups the base stations in the main area according to the obtained working parameter data of each UE, and then for each group, the information from each UE to the base station in the main area is divided into groups. The path loss and the path loss from each UE to the neighboring cell base station, determine the location information of each UE, and then determine the location information of each group of main cell base stations, and then determine the location information of each group of main cell base stations. Compare and check with the longitude and latitude of the base station in the work reference table, so as to determine whether the longitude and latitude of the base station is correct, so that when the location of the base station is detected to determine the location of the base station, the detection efficiency of the location of the base station is improved. The accuracy of base station location detection is improved.

Description of drawings

FIG. 1 is a schematic flowchart of a method for determining the location of a base station in an embodiment of the present invention;

FIG. 2 is a schematic diagram of an optional distribution of a UE and a primary/neighboring cell base station in an embodiment of the present invention;

3 is a schematic diagram of an optional distribution of UEs and primary/neighboring cell base stations corresponding to Table 2 in an embodiment of the present invention;

4 is a schematic diagram of an optional distribution of neighboring cell base stations in a preset area after gridding according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an optional distribution of the UE and the main area base station in an embodiment of the present invention;

FIG. 6 is another optional schematic diagram of distribution of UE and main area base station in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an apparatus for determining the location of a base station in an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

An embodiment of the present invention provides a method for determining the location of a base station, which is applied to an apparatus for determining the location of a base station. FIG. 1 is a schematic flowchart of a method for determining the location of a base station in an embodiment of the present invention. As shown in FIG. Methods for determining location include:

S101: According to the obtained industrial parameter data of each UE, look up a table to obtain the latitude and longitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into one group;

In the specific implementation process, the method of obtaining the engineering parameter data of each UE may be as follows: first, a data file compressed package of the parameter measurement report of the macro station within a preset time period may be extracted from the background gateway, and then the compressed data file may be decompressed package, the decompressed data package is composed of files in XML format, and part of the contents of the files in XML format are as follows:

Among them, the object id in the above file represents the communication data set contained in each UE, and the UE is used as the unit to extract MR.LteScRSRP, that is, the RSRP of the base station in the main area; MR.LteNcRSRP, that is, the RSRP of each neighboring cell base station; MR. LteScEarfcn, the frequency point of the base station in the main area; MR.LteScPci, the Physical Cell Identifier (PCI, Physical Cell Identifier) of the base station in the main area; MR.LteNcEarfcn, the frequency point of the base station in each adjacent cell; MR.LteNcPci, the frequency point of each adjacent cell PCI of the base station; MR.LteScTadv, that is, the TA of the base station in the main area; MR.LteScAOA, that is, the AOA of the base station in the main area. middle.

In this way, the work parameter data of each UE is obtained, and then the latitude and longitude of each neighboring cell base station of each UE is obtained by looking up the table according to the work parameter data of each UE, and the UEs with the same main cell base station are divided into a group. The UEs of the base station are divided into a group, and in an optional embodiment, S101 may include:

According to the frequency point of the base station in the main area and the physical cell identity PCI in the obtained working parameter data of each UE, look up the table to obtain the base station identity of each UE in the main area, and according to the obtained working parameter data of each UE, the base station in each adjacent area is Frequency point and physical cell identification PCI, look up the table to obtain the longitude and latitude of each neighboring cell base station of each UE; according to the main cell base station identification of each UE, the UEs with the same main cell base station identification are divided into a group.

Wherein, the main area base station identifiers of the above UEs may be the longitude and latitude of the main area base station and the identification number ECI of the main area base station, which are not specifically limited in this embodiment of the present invention.

For example, first extract the primary/neighbor base station frequency and PCI of each UE from the working parameter data of each UE, and then compare the working parameter list of the macro stations in the provinces, cities and regions to be detected to extract the Main/neighboring cell base station longitude and latitude (Latitude) data information, select the neighbor cell information including a preset number in UE as a unit, save it in the excel file format, according to the extracted longitude and latitude of the main cell base station of each UE , the UEs with the same longitude and latitude of the base station in the main area are divided into one group.

The following table 1 is a list of working parameters of a macro station in a certain province and city:

Table 1

The location information (that is, the latitude and longitude) allocated by the base station in the main area of each UE and the base station in each adjacent area can be determined by searching from the working parameter table of the macro station. FIG. 2 shows the UE and the main/neighboring area in the embodiment of the present invention. A schematic diagram of an optional distribution of base stations is shown in FIG. 2 . The users in FIG. 2 correspond to base stations in the main area and four adjacent base stations.

The following uses object id or MmeUeS1apId as an example to classify the UEs as an example. The UEs whose primary cell base station is 1 are grouped into a group, and the 4 neighboring cell base stations of the UE whose primary cell base station is 1 are selected, and the following results are obtained. Table 2 shows:

object id 1 Main area 1 (to be estimated) Neighborhood 1.1 Neighborhood 1.2 Neighborhood 1.3 Neighborhood 1.4 object id 2 Main area 1 (to be estimated) Neighborhood 2.1 Neighborhood 2.2 Neighborhood 2.3 Neighborhood 2.4 object id 3 Main area 1 (to be estimated) Neighborhood 3.1 Neighborhood 3.2 Neighborhood 3.3 Neighborhood 3.4

Table 2

3 is a schematic diagram of an optional distribution of UEs and main/neighboring cell base stations corresponding to Table 2 in an embodiment of the present invention; as shown in FIG. 3 , the latitude and longitude of main cell 1 in Table 2 is set as the value to be estimated (Unknown), user 1.1's main cell base station is main cell 1, user 1.1's adjacent cell base stations are adjacent cell 1.1, adjacent cell 1.2, adjacent cell 1.3, and adjacent cell 1.4, the number of adjacent cells corresponding to each user is kept at 3 In the above, each row is a set of main/neighbor relationship, and three rows (three groups) of data can obtain 3 UE coordinates (object id 1, 2, 3), and finally calculate the latitude and longitude of main area 1 inversely through the 3 UE coordinates.

The embodiment of the present invention proposes a method for determining the location of a base station. The parameter measurement report of the macro station in a time period is extracted from the background gateway, and the main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell frequency point, main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell RSRP, main/neighboring cell frequency point, main/neighboring cell The data corresponding to parameters such as PCI in neighboring cells, and according to the extracted primary/neighboring cell frequency points and PCIs corresponding to each user, and comparing with the working parameter list of the provincial and municipal regional macro stations, extract the longitude of the primary/neighboring cell base station to which each user belongs. And latitude data, so as to maximize the real-time and accuracy of the basic data in the data analysis process.

S102: According to the RSRP of the base station in the main area, the RSRP of each neighboring base station, and the transmit power in the working parameter data of each UE in each group, determine the path loss from each UE in each group to the base station in the main area and the path loss in each group from the base station in the main area. Path loss from each UE to each neighbor base station;

In the specific implementation process, the calculation formula of the path loss _{UE_NC pathloss} from each UE to the base station is as follows:

_{UE_NC pathloss} =P _tr -(RSRP-140) (1)

Among them, P _tr is the transmit power of the base station in the neighboring cell. Here, in practical applications, the transmit power of each base station is the same; RSRP is the received power of the reference signal of the base station in the main cell and each base station in the neighboring cell, through the above formula (1) The path loss from each UE in each group to the base station in the main cell and the path loss from each UE in each group to each neighboring cell base station can be calculated.

S103: Determine the location information of each UE in each group according to the longitude and latitude of each adjacent cell base station of each UE in each group and the path loss from each UE in each group to each adjacent cell base station;

Wherein, the location information of each UE in each group may be the location coordinates of each UE in each group.

In order to determine the position coordinates of each UE in each group, in an optional embodiment, S103 may include:

Rasterize the preset area including the longitude and latitude of each neighboring cell base station of each UE in each group; according to the longitude and latitude of each neighboring cell base station of each UE in each group and look-up table, each cell of each UE in each group is obtained. The antenna azimuth corresponding to each neighboring cell base station, using the Standard Propagation Model (SPM, Standard Propagation Model), to determine the path loss from each grid to each neighboring cell base station; The path loss and the path loss from each UE in each group to each neighboring cell base station are used to determine the location information of each UE in each group.

The known SPMs are:

L _b =46.3+33.9lgf-13.82lgh _b +C _m +(44.9-6.55lgh _b )lgd-a(h _m )+G _T +χ _b (2)

Among them, L _b is the path loss of the distance d between two points, h _b is the effective height of the base station antenna, the range can be: 30-200 meters, h _m is the UE antenna height, the range can be: 1-10 meters, C _m is the urban correction factor, which is a constant, for example, C _m = 0 dB for medium urban and suburban centers, C _m = 3 dB for large urban centers, G _T is the antenna gain, and a(h _m ) is the UE antenna height correction factor , is a constant, χ _b is the correction factor of other factors, which is a constant, and f is a constant.

The constant in the above formula (2) is an empirical value in a typical scenario. In order to improve the accuracy of UE coordinate positioning, the constant term can be based on the extracted TA value and the corresponding path loss, as well as various data such as frequency sweep and drive test data. source for parameter calibration fitting, transforming formula (2) into:

L _b =k ₀ +k ₁ lgf-k ₂ lgh _b +(k ₃ -k ₄ lgh _b )lgd-k ₅ +G _T (3)

However, the above f, k ₀ , k ₁ , k ₂ , k ₃ , and k ₄ are constants.

In S103, the map is divided by an equal-spaced grid, wherein the interval value can be adjusted according to the actual accuracy. For example, FIG. 4 is a kind of neighboring cell base stations in the preset area after gridding in an embodiment of the present invention An optional schematic diagram of distribution, as shown in Figure 4, maps the latitude and longitude (coordinates) of four neighboring cell base stations to the grid, preferably, assuming that the UE is located at the center of each grid, then traverse and calculate each grid The path loss _{NC_SG pathloss} from the center point (ie UE position) to each neighboring cell base station, the calculation formula is as follows:

_{NC_SG pathloss} = k ₀ +k ₁ lgf-k ₂ lgh _b +(k ₃ -k ₄ lgh _b )lg(D _{nc_sg} )-k ₅ +G _T (5)

Among them, D _{nc_sg} is the distance from the center point of each grid to each neighboring base station, (x _nc , y _nc ) is the coordinate of each neighboring cell base station, (x _sg , y _sg ) is the center of each grid Point coordinates, in addition, the calculation method of _GT is: first, calculate the angle between each neighboring base station and the north direction of each grid center point (traversal), denoted as α ₀ ; then query each base station in the engineering parameter table. The corresponding antenna azimuth is denoted as β ₀ ; then calculate χ ₀ =α ₀ −β ₀ ; then query the correspondence table between the direction angle χ ₀ and the gain to determine the value of _GT .

In this way, for each UE, the path loss _{NC_SG pathloss} from the center point of each grid to each neighboring cell base station can be obtained.

Through the above formula (4) and formula (5), the path loss _{NC_SG pathloss} from the center point of each grid of each UE to each neighboring cell base station is obtained, and in S102, the path loss of each UE in each group is also obtained. The path loss of each neighboring cell base station, then, the location information of each UE in each group can be determined in two ways. In an optional embodiment, according to the path loss from each grid to each neighboring cell base station The path loss and the path loss from each UE in each group to each neighboring base station, determine the location information of each UE in each group, which can include:

According to the path loss from each grid to each neighboring cell base station and the absolute value of each difference between the path loss from each UE in each group to each neighboring cell base station, the minimum value of the absolute value of each difference value corresponds to grid location information, determined as the location information of each UE in each group;

Alternatively, according to the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station, the least squares method is used to determine the location information of each UE in each group.

Specifically, the first method is to calculate the difference between the path loss from each grid to each neighboring base station and the path loss from each UE in each group to each neighboring base station, and take the absolute value to obtain each difference. The coordinates of the center point of the grid corresponding to the minimum value in the absolute value of the value are the coordinates of the UE; the second method is the least square method, which is:

Among them, n represents the number of UEs in each group, _{UE_NC pathloss} represents the path loss from the UE to the base station in the main area, (x _ue , y _ue ) is the coordinates of the UE, and the minimum value calculated by the above formula (6) is in the map grid The corresponding point is the coordinate position (x _ue , y _ue ) of the UE. FIG. 5 is an optional schematic diagram of the distribution of the UE and the main area base station in the embodiment of the present invention, as shown in FIG. 5 , The coordinates of user 1.1, user 1.2, user 1.3 and user 1.4 with main area 1 can be determined;

Moreover, in practical applications, after calculating the coordinates of the UE existing in the main area 1, the ECI of the main area base station (the main area ECI in Table 3) is used as the unit to classify and summarize, as shown in Table 3 below:

table 3

S104: Determine the location information of the base station in the main area of each UE in each group according to the location information of each UE in each group and the path loss from each UE in each group to the base station in the main area.

In the embodiment of the present invention, the longitude and latitude of the main area corresponding to each user is set as the value to be estimated, the longitude and latitude of the adjacent area and the SPM are used to solve the location coordinates of all users in the adjacent area, and then the location coordinates of these UEs are used to reversely solve the main area to be estimated. The latitude and longitude of the base station is finally compared with the longitude and latitude of the base station in the main area and the latitude and longitude of the base station allocated in the work parameter table, which accurately and efficiently realizes the purpose of the work parameter verification.

After learning the coordinates of each UE in each group after S103, in order to further determine the location information of the base station in the main area of each UE in each group, in an optional embodiment, S104 may include:

According to the path loss from each UE in each group to the base station in the main area, the SPM propagation model is used to determine the distance from each UE in each group to the base station in the main area; The location information of each UE in the group determines the location information of the base station in the main area of each UE in each group.

First, when the path loss from each UE in each group to the base station in the main area is known, the above formula (5) is simplified to obtain:

_{UE_SC pathloss} = M ₀ +M ₁ lgD _{ue_sc} (7)

Among them, M ₀ , M ₁ are constants related to f, k ₀ , k ₁ , k ₂ , k ₃ , k ₄ , and _{GT, and Due_sc is} the distance from the UE to the base station in the main area;

After the distance between each UE and the base station in the main area is obtained by the above formula (7), the following table 4 can be obtained by classification:

Table 4

FIG. 6 is another optional schematic diagram of distribution of UE and main area base station in an embodiment of the present invention. As shown in FIG. 6 , the distance between user 1.1 and main area 1 (cell 1 to be estimated) is D1 (1.1), D2 (1.2) is used for the distance between user 1.2 and main area 1, D3 (1.3) is used for the distance between user 1.3 and main area 1, and D4 (1.4) is used for the distance between user 1.4 and main area 1. Then, according to the distance between the two points The distance formula can be composed of the following equations:

Among them, (x _ue1 , y _ue1 ) is the coordinates of UE1, _{Due_sc1} is the distance between UE1 and the coordinates (x _sc , y _sc ) of the base station in the main area, (x _ue2 , y _ue2 ) is the coordinates of UE2, and _{Due_sc2} is The distance between UE2 and the coordinates of the base station in the main area (x _sc , y _sc ), and so on, (x _ueN , y _ueN ) is the coordinate of the UEN, and _{Due_scN} is the coordinate between the UEN and the base station in the main area (x _sc , y _sc ) Solve the equation set to obtain the coordinates of the base station in the main area, that is, the latitude and longitude of the base station in the main area, and then compare the obtained longitude and latitude of the base station in the main area with the longitude and latitude of the base station in the macro station work reference table. Purpose.

In the embodiment of the present invention, a method for parameter calibration and fitting is proposed based on the constant term in the SPM, the TA value and the corresponding path loss extracted from the parameter measurement report, as well as the frequency sweep and drive test data, and other data sources. The map is divided by the equidistant grid, the path loss from the adjacent area to the grid center point is traversed and calculated, and the mean square error matrix is constructed to compare and verify the two results. The above method is used to greatly improve the accuracy of user coordinate positioning. It has strong application value and guiding significance in engineering projects.

In addition, the parameter measurement report in the embodiment of the present invention is periodically opened on the entire network every month, so that regular verification of the latitude and longitude of the base stations in the whole network can be realized, and a normal monitoring mechanism of the latitude and longitude of the base station is formed. Special function support, calculation is performed according to the parameter information actually reported by the terminal, regardless of the configuration of the neighbor relationship, SPM is suitable for various scenarios, and the parameter values in each scenario make it flexible and changeable when determining the location of the base station.

In the method for determining the location of the base station provided by the embodiment of the present invention, firstly, according to the obtained work parameter data of each UE, look up a table to obtain the latitude and longitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into one base station. group; in this way, the UEs divided into a group correspond to the same main area base station, and then, according to the RSRP of the main area base station, the RSRP of each adjacent area base station and the transmit power in the work parameter data of each UE in each group, determine Calculate the path loss from each UE in each group to the base station in the main cell and the path loss from each UE in each group to each adjacent cell base station; secondly, according to the longitude and latitude of each adjacent cell base station of each UE in each group and The path loss from each UE to each neighboring base station in the , determines the location information of each UE in each group; that is, the location information of each UE in each group is obtained by traversing the grid, and finally, According to the location information of each UE in each group and the path loss from each UE in each group to the base station in the main area, use the distance formula between two points to form a system of equations, and determine the base station in the main area of each UE in each group. Location information; according to the obtained working parameter data of each UE, the embodiment of the present invention firstly groups according to the base station in the main area, and then for each group, the path loss from each UE to the base station in the main area and the path loss from each UE to the adjacent area The path loss of the base station, determine the location information of each UE, and then determine the location information of each group of main area base stations, and then compare the determined location information of each group of main area base stations with the base station in the work reference table. The longitude and latitude are compared and checked, so that it can be determined whether the longitude and latitude of the base station is correct, so that the detection efficiency of the base station position detection is improved when the position detection of the base station is performed to determine the base station position, and the accuracy of the base station position detection is improved at the same time.

Based on the same inventive concept, this embodiment provides an apparatus for determining the position of a base station. FIG. 7 is a schematic structural diagram of the apparatus for determining the position of a base station in an embodiment of the present invention. As shown in FIG. 7 , the apparatus for determining the position of a base station includes: module 71, a first determination module 72, a second determination module 73 and a third determination module 74;

Wherein, the dividing module 71 is used to obtain the longitude and latitude of each neighboring cell base station of each UE according to the obtained work parameter data of each user terminal UE, and divide the UEs with the same main cell base station into a group; the first determining module 72, for determining, according to the reference signal received power RSRP of the base station in the main area, the RSRP and transmit power of each adjacent base station in the work parameter data of each UE in each group, the relationship between each UE in each group to the base station in the main area. The path loss and the path loss from each UE in each group to each neighboring cell base station; the second determination module 73 is used to determine the path loss according to the longitude and latitude of each neighboring cell base station of each UE in each group and each UE in each group to each neighboring cell base station. The path loss of each neighboring cell base station is used to determine the location information of each UE in each group; the third determining module 74 is configured to determine the location information of each UE in each group and the distance between each UE in each group to the main cell base station according to the location information of each UE in each group. Path loss, determine the location information of the base station in the main area of each UE in each group.

In order to determine the position coordinates of each UE in each group, in an optional embodiment, the above-mentioned second determining module 73 includes: a grid sub-module, configured to The rasterization of the preset area of the longitude and latitude of the neighboring cell base station; the first determination sub-module is used for each neighboring cell of each UE in each group obtained according to the longitude and latitude of each neighboring cell base station of each UE in each group and a look-up table For the antenna azimuth corresponding to the base station, the standard propagation model SPM is used to determine the path loss from each grid to each neighboring base station; the second determination sub-module is used to determine the path from each grid to each neighboring base station according to the path loss of the base station. The loss and the path loss from each UE in each group to each neighboring base station are used to determine the location information of each UE in each group.

Through the above formula (4) and formula (5), the path loss _{NC_SG pathloss} from the center point of each grid of each UE to each neighboring cell base station is obtained, and in S102, the path loss of each UE in each group is also obtained. The path loss of each neighboring cell base station, then, the location information of each UE in each group can be determined in two ways. In an optional embodiment, the above-mentioned second determination sub-module is specifically used for The absolute value of each difference between the path loss from each grid to each neighboring base station and the path loss from each UE in each group to each neighboring base station, and the grid corresponding to the minimum value of the absolute values of each difference The location information is determined as the location information of each UE in each group; or, according to the path loss from each grid to each adjacent cell base station and the path loss from each UE in each group to each adjacent cell base station, the minimum By means of a square method, the location information of each UE in each group is determined.

In order to further determine the location information of the base station in the main area of each UE in each group, in an optional embodiment, the above-mentioned third determining module 74 is specifically configured to locate the base station in the main area according to each UE in each group The SPM propagation model is used to determine the distance from each UE in each group to the base station in the main area; according to the distance from each UE in each group to the base station in the main area and the location information of each UE in each group, determine Location information of the base station of the primary area of each UE in each group.

In order to divide the UEs of the base stations in the same main area into a group, in an optional embodiment, the above-mentioned dividing module 71 is specifically configured to obtain the frequency points and physical parameters of the base stations in the main area according to the acquired working parameter data of each UE. Cell identification PCI, look up the table to obtain the main area base station identification of each UE, according to the obtained working parameter data of each UE in each adjacent cell base station frequency and physical cell identification PCI, look up the table to obtain the longitude and latitude of each adjacent cell base station of each UE ; According to the main area base station identification of each UE, the UEs with the same main area base station identification are divided into a group.

In practical applications, the division module 71 , the first determination module 72 , the second determination module 73 , the third determination module 74 , the grid sub-module, the first determination sub-module and the second determination sub-module can all be processed by the central processing unit located in the server A CPU (Central Processing Unit), a Microprocessor (MPU, Microprocessor Unit), an Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit) or a Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array) are implemented.

This embodiment describes a computer-readable medium, which may be ROM (eg, read-only memory, FLASH memory, transfer device, etc.), magnetic storage medium (eg, magnetic tape, disk drive, etc.), optical storage medium (eg, CD- ROM, DVD-ROM, paper card, paper tape, etc.) and other well-known types of program memory; the computer-readable medium stores computer-executable instructions that, when executed, cause at least one processor to perform operations including:

According to the obtained working parameter data of each user terminal UE, look up the table to obtain the latitude and longitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into a group; according to the working parameter data of each UE in each group The reference signal received power RSRP of the base station in the main cell, the RSRP and transmit power of each adjacent cell base station, determine the path loss from each UE in each group to the main cell base station and the path loss from each UE in each group to each adjacent cell base station. Path loss; determine the location information of each UE in each group according to the latitude and longitude of each neighboring cell base station of each UE in each group and the path loss from each UE in each group to each neighboring cell base station; The location information of each UE and the path loss from each UE in each group to the base station in the main area determine the location information of the base station in the main area for each UE in each group.

In the method for determining the location of the base station provided by the embodiment of the present invention, firstly, according to the obtained work parameter data of each UE, look up a table to obtain the latitude and longitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into one base station. group; in this way, the UEs divided into a group correspond to the same main area base station, and then, according to the RSRP of the main area base station, the RSRP of each adjacent area base station and the transmit power in the work parameter data of each UE in each group, determine Calculate the path loss from each UE in each group to the base station in the main cell and the path loss from each UE in each group to each adjacent cell base station; secondly, according to the longitude and latitude of each adjacent cell base station of each UE in each group and The path loss from each UE to each neighboring base station in the , determines the location information of each UE in each group; that is, the location information of each UE in each group is obtained by traversing the grid, and finally, According to the location information of each UE in each group and the path loss from each UE in each group to the base station in the main area, use the distance formula between two points to form a system of equations, and determine the base station in the main area of each UE in each group. Location information; according to the obtained working parameter data of each UE, the embodiment of the present invention firstly groups according to the base station in the main area, and then for each group, the path loss from each UE to the base station in the main area and the path loss from each UE to the adjacent area The path loss of the base station, determine the location information of each UE, and then determine the location information of each group of main area base stations, and then compare the determined location information of each group of main area base stations with the base station in the work reference table. The longitude and latitude are compared and checked, so that it can be determined whether the longitude and latitude of the base station is correct, so that the detection efficiency of the base station position detection is improved when the position detection of the base station is performed to determine the base station position, and the accuracy of the base station position detection is improved at the same time.

It should be pointed out here that the descriptions of the above device embodiment items are similar to the above method descriptions, and have the same beneficial effects as the method embodiments, so they will not be repeated. For the technical details not disclosed in the device embodiments of the present invention, those skilled in the art should refer to the descriptions of the method embodiments of the present invention to understand them, and to save space, they will not be repeated here.

It should be pointed out here that:

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the embodiments of the present invention. implementation constitutes any limitation. The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.

The unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit; it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integration The unit can be implemented either in the form of hardware or in the form of hardware plus software functional units.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, the execution includes: The steps of the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a read only memory (Read Only Memory, ROM), a magnetic disk or an optical disk and other media that can store program codes.

Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of software products in essence or the parts that make contributions to the prior art. The computer software products are stored in a storage medium and include several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (8)

1. A method for determining the location of a base station, comprising: According to the obtained work parameter data of each user terminal UE, look up a table to obtain the longitude and latitude of each neighboring cell base station of each UE, and divide the UEs with the same main cell base station into one group; The path loss from each UE in each group to the main cell base station is determined according to the reference signal received power RSRP of the main cell base station, the RSRP and transmit power of each neighboring cell base station in the working parameter data of each UE in each group and the path loss from each UE in each group to each neighboring cell base station; Determine the location information of each UE in each group according to the latitude and longitude of each neighboring cell base station of each UE in each group and the path loss from each UE in each group to each neighboring cell base station; According to the location information of each UE in each group and the path loss from each UE in each group to the main area base station, determine the location information of the main area base station of each UE in each group; The location information of each UE in each group is determined according to the longitude and latitude of each neighboring cell base station of each UE in each group and the path loss from each UE in each group to each neighboring cell base station ,include: rasterizing a preset area including the longitude and latitude of each neighboring cell base station of each UE in each group; According to the longitude and latitude of each neighboring cell base station of each UE in each group and the antenna azimuth corresponding to each neighboring cell base station of each UE in each group obtained by looking up the table, the standard propagation model SPM is used to determine each path loss from grids to each neighbor base station; The location information of each UE in each group is determined according to the path loss from each grid to each adjacent cell base station and the path loss from each UE in each group to each adjacent cell base station. 2. The method according to claim 1, wherein the path loss from each grid to each neighboring cell base station and from each UE in each group to each neighboring cell base station path loss, determine the location information of each UE in each group, including: According to the absolute value of each difference between the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station, the difference values are The grid location information corresponding to the minimum value in the absolute value of , is determined as the location information of each UE in the each group; Or, according to the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station, the least squares method is used to determine the each group location information of each UE in . 3. The method according to claim 1, wherein the determining the The location information of the primary cell base station of each UE in each group, including: According to the path loss from each UE in each group to the base station in the main area, the SPM propagation model is used to determine the distance from each UE in each group to the base station in the main area; According to the distance from each UE in each group to the base station in the main area and the location information of each UE in each group, the location information of the base station in the main area of each UE in each group is determined. 4. The method according to claim 1, wherein, according to the obtained work parameter data of each user terminal UE, the latitude and longitude of each neighboring cell base station of each UE is obtained by looking up a table, and the base station having the same main cell The UEs are divided into a group, including: According to the frequency point of the base station in the main area and the physical cell identifier PCI in the obtained working parameter data of each UE, look up the table to obtain the identification of the base station in the main area of each UE. cell base station frequency and PCI, look up the table to obtain the longitude and latitude of each neighboring cell base station of each UE; According to the main area base station identifiers of the UEs, the UEs with the same main area base station identifiers are divided into a group. 5. An apparatus for determining the location of a base station, comprising: a division module, configured to obtain the longitude and latitude of each neighboring cell base station of each UE according to the obtained work parameter data of each user terminal UE, and divide the UEs with the same main cell base station into a group; The first determination module is used to determine each UE in each group according to the reference signal received power RSRP of the main cell base station, the RSRP and transmit power of each neighboring cell base station in the work parameter data of each UE in each group The path loss to the base station in the main cell and the path loss from each UE in each group to each neighboring cell base station; The second determining module is configured to determine, according to the latitude and longitude of each neighboring cell base station of each UE in each group and the path loss from each UE in each group to each neighboring cell base station, to determine the location information of each UE; The third determining module is configured to determine the base station of the main area of each UE in each group according to the location information of each UE in each group and the path loss from each UE in each group to the base station of the main area location information; The second determining module includes: A grid submodule, configured to gridize a preset area including the longitude and latitude of each neighboring cell base station of each UE in each group; The first determination submodule is used to obtain the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group according to the longitude and latitude of each adjacent cell base station of each UE in the each group and look-up table, using Standard propagation model SPM to determine the path loss from each grid to each neighboring base station; The second determination submodule is configured to determine, according to the path loss from each grid to each neighbor base station and the path loss from each UE in each group to each neighbor base station, to determine the Location information of each UE. 6 . The apparatus according to claim 5 , wherein the second determining submodule is specifically configured to calculate the path loss from each grid to each neighboring cell base station and the The absolute value of each difference value of the path loss from each UE to each neighboring cell base station, and the grid position information corresponding to the minimum value among the absolute values of each difference value is determined as the information of each UE in each group. location information; or, according to the path loss from each grid to each neighboring cell base station and the path loss from each UE in each group to each neighboring cell base station, the least squares method is used to determine the The location information of each UE in each group is described. 7. The apparatus according to claim 5, wherein the third determining module is specifically configured to use an SPM propagation model according to the path loss from each UE in the each group to the base station in the main area to determine the The distance from each UE in each group to the base station in the main area; according to the distance between each UE in each group and the base station in the main area and the location information of each UE in each group, determine the distance between each UE in each group and the base station in the main area. The location information of the base station in the primary area of each UE. 8. The device according to claim 5, wherein the dividing module is specifically configured to obtain the obtained data by looking up a table according to the frequency point of the main area base station and the physical cell identifier PCI in the obtained working parameter data of each UE. The primary area base station identifier of each UE is described, and the latitude and longitude of each adjacent area base station of each UE is obtained by looking up a table according to the frequency point and PCI of each adjacent area base station in the obtained working parameter data of each UE; The identification of the base station in the main area is to divide the UEs with the same identification of the base station in the main area into a group.

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