CN108111965B - Method and device for determining position of base station - Google Patents
Method and device for determining position of base station Download PDFInfo
- Publication number
- CN108111965B CN108111965B CN201611037624.6A CN201611037624A CN108111965B CN 108111965 B CN108111965 B CN 108111965B CN 201611037624 A CN201611037624 A CN 201611037624A CN 108111965 B CN108111965 B CN 108111965B
- Authority
- CN
- China
- Prior art keywords
- base station
- group
- path loss
- determining
- main area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a method for determining the position of a base station, which comprises the following steps: 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 base station of each UE, and dividing the UEs with the same main base station into a group; determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each adjacent base station in the work parameter data of each UE in each group; determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; and determining the position information of the main area base station of each UE in each group according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station. The embodiment of the invention also discloses a device for determining the position of the base station.
Description
Technical Field
The present invention relates to the field of data communication technologies, and in particular, to a method and an apparatus for determining a location of a base station.
Background
Nowadays, a base station has a very important meaning as a basic device for data communication, and detection of actual engineering parameters of the base station is always a focus of research.
In the prior art, there are various methods for detecting actual engineering parameters of a base station to determine the position of the base station, the first method is manual on-site station-arrival detection, and the longitude and latitude and azimuth of the base station are checked through a Global Positioning System (GPS) and a level meter, but the method has a large workload for the whole network, only partial stations can be checked, the normal longitude and latitude check of the base station in the whole network cannot be performed, and the daily optimization engineering of the network cannot be supported efficiently; the second method is to judge the azimuth and the longitude and latitude of the base station based on the signal transmission delay (TA, Timing Advance) and the signal Arrival angle (AOA, Arrival angle) in the parameter measurement report, but by adopting the method, the buildings are dense in the city, the signal reflection and diffraction environments are rich, and the TA + AOA cannot really reflect the position relationship between the terminal and the base station, so that the detection error is larger; the third method is that the base station association degree is calculated based on the switching times of the terminal among different systems, and the base station longitude and latitude are detected by mismatching the switching frequency sequence with the association degree of a Geographic Information System (GIS), but by adopting the method, the switching frequency depends on the relationship of the configured adjacent regions, and the adjacent region relationship has the problems of missing and wrong matching, so that the detection accuracy is reduced; therefore, the technical problem of low detection efficiency exists when the position of the base station is determined by detecting the position of the base station in the prior art.
Disclosure of Invention
In view of this, embodiments of the present invention are intended to provide a method and an apparatus for determining a base station position, so as to solve the technical problem in the prior art that detection efficiency is low when a base station is detected to determine a base station position, and improve detection efficiency when the base station position is detected.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for determining a location of a base station, where the method includes: 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 base station of each UE, and dividing the UEs with the same main base station into a group; determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each neighbor base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each neighbor base station in the work parameter data of each UE in each group; determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; and determining the position information of the main area base station of each UE in each group according to the position 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 determining the location information of each UE in each group according to the longitude and latitude of each neighboring base station of each UE in each group and the path loss from each UE in each group to each neighboring base station includes: rasterizing a preset area including the longitude and latitude of each neighboring base station of each UE in each group; determining the path loss from each grid to each adjacent cell base station by adopting a standard propagation model SPM according to the longitude and latitude of each adjacent cell base station of each UE in each group and the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group obtained by table look-up; and determining the position information of each UE in each group 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.
Further, the determining the location information of each UE in each group 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 includes: determining grid position information corresponding to the minimum value in the absolute values of the differences according to the absolute values of the differences between 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 as the position information of each UE in each group; or determining the position information of each UE in each group by adopting a least square method 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.
Further, the determining 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 includes: determining the distance from each UE in each group to the main base station by adopting an SPM propagation model according to the path loss from each UE in each group to the main base station; and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
Further, the table look-up according to the obtained work parameter data of each user equipment UE obtains the longitude and latitude of each neighboring base station of each UE, and divides UEs having the same main base station into a group, including: according to the main area base station frequency point and the physical cell identification PCI in the obtained work parameter data of each UE, looking up a table to obtain the main area base station identification of each UE, and according to the adjacent area base station frequency point and the PCI in the work parameter data of each UE, looking up the table to obtain the longitude and latitude of each adjacent area base station of each UE; and dividing the UEs with the same main area base station identification into a group according to the main area base station identification of each UE.
In a second aspect, an embodiment of the present invention provides an apparatus for determining a base station location, including: the dividing module is used for looking up a table to obtain the longitude and latitude of each neighboring base station of each UE according to the acquired work parameter data of each user terminal UE, and dividing the UEs with the same main base station into a group; the first determining module is used for determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each adjacent base station in the work parameter data of each UE in each group; a second determining module, configured to determine location information of each UE in each group according to the longitude and latitude of each neighboring base station of each UE in each group and a path loss from each UE in each group to each neighboring base station; and a third determining module, configured to determine, according to the location information of each UE in each group and a path loss from each UE in each group to the main area base station, the location information of the main area base station of each UE in each group.
Further, the second determining module includes: the grid submodule is used for rasterizing a preset area comprising the longitude and latitude of each neighboring base station of each UE in each group; the first determining submodule is used for determining the path loss from each grid to each adjacent cell base station by adopting a standard propagation model SPM according to the longitude and latitude of each adjacent cell base station of each UE in each group and the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group obtained by table look-up; and a second determining submodule, configured to determine location information of each UE in each group according to 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.
Further, the second determining sub-module is specifically configured to determine, 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, grid position information corresponding to a minimum value among the absolute values of each difference as position information of each UE in each group; or determining the position information of each UE in each group by adopting a least square method 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.
Further, the third determining module is specifically configured to determine, according to the path loss from each UE in each group to the main area base station, a distance from each UE in each group to the main area base station by using an SPM propagation model; and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
Further, the dividing module is specifically configured to obtain a main area base station identifier of each UE by looking up a table according to a main area base station frequency point and a physical cell identifier PCI in the obtained work parameter data of each UE, and obtain a longitude and latitude of each neighboring area base station of each UE by looking up a table according to each neighboring area base station frequency point and PCI in the obtained work parameter data of each UE; and dividing the UEs with the same main area base station identification into a group according to the main area base station identification of each UE.
The method and the device for determining the position of the base station provided by the embodiment of the invention firstly look up a table to obtain the longitude and latitude of each neighboring base station of each User Equipment (UE) according to the obtained work parameter data of each UE, and divide the UE with the same main base station into a group; in this way, the UEs divided into one group correspond to the same main base station, and then the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station are determined according to the RSRP of the main base station, the RSRP of each adjacent base station and the transmitting power in the work parameter data of each UE in each group; secondly, determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; that is, the position information of each UE in each group is obtained by a method of traversing the grid, and finally, an equation set is formed by using a distance formula between two points according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station, so that the position information of the main area base station of each UE in each group is determined; according to the embodiment of the invention, the work parameter data of each UE is acquired, the UE is grouped according to the main area base station, then the position information of each UE is determined according to the path loss from each UE to the main area base station and the path loss from each UE to the adjacent area base station in each group, and further the position information of the main area base station in each group is determined, and then the determined position information of the main area base station in each group is compared and checked with the longitude and latitude of the base station in the work parameter table, so that whether the longitude and latitude of the base station is correct or not can be determined, the detection efficiency of the base station position detection is improved when the base station is subjected to the position detection to determine the position of the base station, and the accuracy of the base station position detection is improved.
Drawings
Fig. 1 is a flowchart illustrating a method for determining a location of a base station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an alternative distribution of a UE and a primary/neighboring base station in the embodiment of the present invention;
fig. 3 is a schematic diagram of an alternative distribution of a UE and a primary/neighboring base station corresponding to table 2 in the embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an alternative distribution of neighboring cell base stations in a preset area after rasterization in the embodiment of the present invention;
fig. 5 is a schematic diagram of an alternative distribution of a UE and a master cell base station in the embodiment of the present invention;
fig. 6 is a schematic diagram of another alternative distribution of the UE and the primary area base station in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station location determining apparatus in an embodiment of the present invention.
Detailed Description
The technical solution 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 a location of a base station, where the method is applied to a device for determining a location of a base station, fig. 1 is a schematic flow chart of the method for determining a location of a base station in the embodiment of the present invention, and as shown in fig. 1, the method for determining a location of a base station includes:
s101: according to the obtained work parameter data of each UE, looking up a table to obtain the longitude and latitude of each neighboring base station of each UE, and dividing the UEs with the same main base station into a group;
in a specific implementation process, the method for acquiring the parameter data of each UE may be that, first, a data file compression packet of a parameter measurement report of the macro station in a preset time period may be extracted from the background gateway, and then the data file compression packet is decompressed to obtain a decompressed data packet composed of a file in an XM L format, where partial contents of the file in the XM L format are as follows:
the object id in the file represents a communication data set contained in each UE, and by taking the UE as a unit, MR L tesCrRSRP, namely the RSRP of the main base station, MR L tesCrRSRP, namely the RSRP of each adjacent base station, MR L tesCrEarfcn, namely the frequency point of the main base station, MR L tesScPci, namely the Physical Cell Identifier (PCI) of the main base station, MR L tesCrEarfcn, namely the frequency point of each adjacent base station, MR L tesCrPci, namely the PCI of each adjacent base station, MR L tesTadv, namely the TA of the main base station, and MR L tesScAOA, namely the data corresponding to parameters such as the AOA of the main base station are taken as the engineering parameter data of each UE, and the engineering parameter data are extracted into a file in a csv format uniformly.
In this way, the work parameter data of each UE is obtained, then the latitude and longitude of each neighboring base station of each UE is obtained according to the work parameter data lookup table of each UE, the UEs having the same main area base station are divided into one group, and in order to divide the UEs having the same main area base station into one group, in an optional embodiment, S101 may include:
according to the main area base station frequency point and the physical cell identification PCI in the obtained work parameter data of each UE, looking up a table to obtain the main area base station identification of each UE, and according to the adjacent area base station frequency point and the physical cell identification PCI in the work parameter data of each UE, looking up the table to obtain the longitude and latitude of each adjacent area base station of each UE; and according to the main area base station identification of each UE, dividing the UEs with the same main area base station identification into a group.
The identifier of the master area base station of each UE may be a longitude and latitude of the master area base station, and an identifier number ECI of the master area base station, where embodiments of the present invention are not specifically limited.
For example, firstly, the frequency point and the PCI of the main/adjacent base station of each UE are extracted from the power parameter data of each UE, then, the longitude (L area) and the latitude (L area) data information of the main/adjacent base station to which each UE belongs are extracted by referring to the power parameter list of the province and city area macro station to be detected, the adjacent information containing the preset number is selected by taking the UE as a unit and stored in an excel file format, and the UEs with the same longitude and latitude of the main base station are divided into a group according to the extracted longitude and latitude of the main base station of each UE.
The following table 1 is a list of parameters of a macro station in a certain provincial and urban area:
TABLE 1
The position information (i.e., longitude and latitude) allocated to the main area base station and each neighboring area base station of each UE can be determined by searching from the work parameter table of the macro station, fig. 2 is an optional distribution diagram of the UE and the main/neighboring area base stations in the embodiment of the present invention, and as shown in fig. 2, the user in fig. 2 corresponds to the main area base station and 4 neighboring area base stations.
In the following, for example, classifying the UEs with object id or MmeUeS1apId as a unit, grouping the UEs with main area base station 1 of the UE into one group, and selecting 4 neighboring base stations of the UEs with main area base station 1, which is shown in table 2 below:
| object id 1 | main area 1 (to be estimated) | Neighborhood 1.1 | Neighbor 1.2 | Neighborhood 1.3 | Neighbor 1.4 |
| object id 2 | Main area 1 (to be estimated) | Neighbor cell 2.1 | Neighbor cell 2.2 | Neighbor cell 2.3 | Neighbor cell 2.4 |
| object id 3 | Main area 1 (to be estimated) | Neighbor cell 3.1 | Neighbor cell 3.2 | Neighbor cell 3.3 | Neighbor cell 3.4 |
TABLE 2
Fig. 3 is a schematic diagram of an alternative distribution of a UE and a primary/neighboring base station corresponding to table 2 in the embodiment of the present invention; as shown in fig. 3, the longitude and latitude of main area 1 in table 2 is set as the value to be estimated (unknown), the main area base station of user 1.1 is main area 1, the neighboring area base station of user 1.1 is neighboring area 1.1, neighboring area 1.2, neighboring area 1.3, neighboring area 1.4, the number of neighboring areas corresponding to each user is maintained at more than 3, each row is in a group of main/neighboring area relationship, three rows (three groups) of data can obtain 3 UE coordinates (object id 1, 2, 3), and finally the longitude and latitude of main area 1 are reversely calculated through the 3 UE coordinates.
The embodiment of the invention provides a method for determining the position of a base station, which comprises the steps of extracting a parameter measurement report of a macro station in a time period from a background gateway, respectively extracting data corresponding to parameters such as a main/adjacent region RSRP, a main/adjacent region frequency point and a main/adjacent region PCI by taking a user as a unit, and extracting longitude and latitude data of a main/adjacent region base station to which each user belongs according to an extracted main/adjacent region frequency point and PCI corresponding to each user and a working parameter list of the macro station in a province and city area, so that the real-time performance and the accuracy of basic data in a data analysis process are guaranteed to the maximum extent.
S102: determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station according to the RSRP of the main base station, the RSRP of each adjacent base station and the transmitting power in the work parameter data of each UE in each group;
in particular implementIn the process, path loss UE _ NC from each UE to the base stationpathlossThe calculation formula of (a) is as follows:
UE_NCpathloss＝Ptr-(RSRP-140) (1)
wherein, PtrIs the transmission power of the neighboring base station, here, in practical application, the transmission power of each base station is the same; the RSRP is the received power of the reference signal of the main area base station and each neighboring base station, and the path loss from each UE in each group to the main area base station and the path loss from each UE in each group to each neighboring base station can be calculated by the above formula (1).
S103: determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station;
the location information of each UE in each group may be a location coordinate of each UE in each group.
In order to determine the location coordinates of each UE in each group, in an alternative embodiment, S103 may include:
rasterizing a preset area including the longitude and latitude of each neighboring base station of each UE in each group; determining the path loss from each grid to each neighbor base station by adopting a Standard Propagation Model (SPM) according to the longitude and latitude of each neighbor base station of each UE in each group and the antenna azimuth corresponding to each neighbor base station of each UE in each group obtained by table lookup; and determining the position information of each UE in each group 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.
SPMs are known as:
Lb＝46.3+33.9lgf-13.82lghb+Cm+(44.9-6.55lghb)lgd-a(hm)+GT+χb(2)
wherein, LbPath loss, h, being the distance d between two pointsbFor the effective height of the base station antenna, the range may be: 30-200 m, hmFor UE antenna height, the range may be: 1-10 m, CmFor repairing citiesPositive factor, being constant, e.g. for medium urban and suburban centres, Cm0dB, for large city centers, Cm＝3dB，GTFor antenna gain, a (h)m) Is a constant, χ, correction factor for UE antenna heightbThe factor is corrected by other factors and is constant, and f is constant.
The constant in the above formula (2) is an empirical value in a typical scenario, and in order to improve the accuracy of UE coordinate positioning, the constant term may perform parameter calibration fitting according to the extracted TA value and corresponding path loss, and various data sources such as frequency sweep and drive test data, and transform the formula (2) into:
Lb＝k0+k1lgf-k2lghb+(k3-k4lghb)lgd-k5+GT(3)
wherein f, k are0，k1，k2，k3，k4Is a constant.
In S103, the map is divided by applying an equidistant grid, where a distance value may be adjusted according to an actual accuracy requirement, for example, fig. 4 is an optional distribution diagram of neighboring cell base stations in a preset area after rasterization in the embodiment of the present invention, as shown in fig. 4, the longitudes and latitudes (coordinates) of 4 neighboring cell base stations are mapped into the grid, and preferably, assuming that the UE is located at a central point of each grid, the path loss NC _ SG from the central point of each grid (i.e., the UE position) to each neighboring cell base station is calculated in a traversal mannerpathlossThe calculation formula is as follows:
NC_SGpathloss＝k0+k1lgf-k2lghb+(k3-k4lghb)lg(Dnc_sg)-k5+GT(5)
wherein D isnc_sg(x) distance from the center point of each grid to each neighbor base stationnc，ync) For each neighbor base station coordinate, (x)sg，ysg) Is the center point coordinate of each grid, and in addition, GTThe calculation method comprises the following steps of firstly, calculating the included angle between each neighboring cell base station and the positive north direction of each grid central point (traversal), and recording as α0Then, the azimuth angles of the antennas corresponding to the base stations in the work parameter table are inquired and recorded as β0(ii) a Then x is calculated0＝α0-β0(ii) a Then inquiring the direction angle x0G is determined by the corresponding relation table with the gainTThe value of (c).
Thus, the path loss NC _ SG from the central point of each grid to each neighbor base station for each UE can be obtainedpathloss。
Obtaining the path loss NC _ SG from the central point of each grid of each UE to each neighbor base station through the formula (4) and the formula (5)pathlossAnd the path loss from each UE in each group to each neighboring base station is also obtained in S102, then, the location information of each UE in each group may be determined in two ways, and in an optional embodiment, the determining the location information of each UE in each group according to 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 may include:
determining grid position information corresponding to the minimum value in the absolute values of the differences according to the path loss from each grid to each adjacent cell base station and the absolute value of each difference of the path loss from each UE in each group to each adjacent cell base station as the position information of each UE in each group;
or determining the position information of each UE in each group by adopting a least square method 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.
Specifically, the first method is to calculate a difference value and take an absolute value of 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, and obtain a coordinate of a center point of the grid corresponding to a minimum value among absolute values of the difference values as a coordinate of the UE; the second way is a least squares method, that is:
where n denotes the number of UEs in each group, UE _ NCpathlossRepresents the path loss of the UE to the main area base station, (x)ue，yue) For the coordinates of the UE, the minimum value calculated by the above formula (6) is mapped in the map grid, and the corresponding point is the coordinate position (x) of the UEue，yue) Fig. 5 is an optional distribution diagram of the UE and the master area base station in the embodiment of the present invention, and as shown in fig. 5, coordinates of the user 1.1, the user 1.2, the user 1.3, and the user 1.4 having the master area 1 may be determined;
in practical applications, after the UE coordinates existing in main area 1 are calculated, the ECIs of the main area base stations (main area ECI in table 3) are grouped and summarized in units of the main area ECI, as shown in table 3 below:
TABLE 3
S104: and determining the position information of the main area base station of each UE in each group according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station.
In the embodiment of the invention, the main area longitude and latitude corresponding to each user is set as the value to be estimated, the position coordinates of all users under the adjacent area are solved by utilizing the adjacent area longitude and latitude and the SPM, then the longitude and latitude of the main area base station to be estimated are reversely solved through the position coordinates of the UE, and finally the solved longitude and latitude of the main area base station is compared with the longitude and latitude of the base station distributed in the work parameter table, so that the purpose of checking the work parameters is accurately and efficiently realized.
After the coordinates of each UE in each group are known after S103, in order to further determine the location information of the main area base station of each UE in each group, in an alternative embodiment, S104 may include:
determining the distance from each UE in each group to the main base station by adopting an SPM propagation model according to the path loss from each UE in each group to the main base station; and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
First, in the case of knowing the path loss from each UE in each group to the primary base station, the above equation (5) is simplified to obtain:
UE_SCpathloss＝M0+M1lgDue_sc(7)
wherein M is0，M1Is a reaction with f, k0，k1，k2，k3，k4，GTRelative constant, Due_scThe distance from the UE to the main area base station;
after the distance from each UE to the primary base station is obtained through the above equation (7), the following table 4 can be obtained by classifying:
TABLE 4
Fig. 6 is another alternative distribution diagram of the UE and the primary area base station in the embodiment of the present invention, as shown in fig. 6, the distance between the user 1.1 and the primary area 1 (cell 1 to be estimated) is D1(1.1), the distance between the user 1.2 and the primary area 1 is D2(1.2), the distance between the user 1.3 and the primary area 1 is D3(1.3), and the distance between the user 1.4 and the primary area 1 is D4(1.4), then the following equations may be formed according to the distance formula between the two points:
wherein (x)ue1，yue1) As coordinates of UE1, Due_sc1To primary region base station coordinate (x) for UE1sc，ysc) (x) of (a) to (b)ue2，yue2) As coordinates of UE2, Due_sc2To primary region base station coordinate (x) for UE2sc，ysc) The distance between, and so on, (x)ueN，yueN) As coordinates of UEN, Due_scNAs UEN to Primary base station coordinate (x)sc，ysc) The coordinate of the main area base station, namely the longitude and latitude of the main area base station, is obtained by solving an equation set of the distance between the main area base station and the macro station, and then the solved longitude and latitude of the main area base station is compared with the longitude and latitude of the base station in the macro station work parameter table to judge whether the longitude and latitude of the base station is consistent or not, so that the purpose of detection and check is achieved.
The embodiment of the invention provides a method for calibrating and fitting parameters of a constant item in an SPM (local performance measurement) according to a TA (timing advance) value extracted from a parameter measurement report, corresponding path loss, sweep frequency, drive test data and other data sources, meanwhile, a map is divided by using an equidistant grid, the path loss from an adjacent cell to a central point of the grid is calculated in a traversing manner, a mean square error matrix is constructed, and the two results are compared and verified.
In addition, the parameter measurement report in the embodiment of the invention is periodically started in the whole network every month, so that the regular check of the longitude and latitude of the base station in the whole network can be realized, a base station longitude and latitude normalized monitoring mechanism is formed, the parameter measurement report is a necessary function of the terminal, the support of a special function of the terminal is not needed, the calculation is carried out according to the parameter information actually reported by the terminal, the configuration of the adjacent area relation is irrelevant, the SPM is suitable for various scenes, and the parameter value under each scene enables the base station position to be flexibly changed.
The method for determining the position of the base station provided by the embodiment of the invention comprises the steps of firstly, according to the obtained work parameter data of each UE, looking up a table to obtain the longitude and latitude of each neighboring base station of each UE, and dividing the UEs with the same main base station into a group; in this way, the UEs divided into one group correspond to the same main base station, and then the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station are determined according to the RSRP of the main base station, the RSRP of each adjacent base station and the transmitting power in the work parameter data of each UE in each group; secondly, determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; that is, the position information of each UE in each group is obtained by a method of traversing the grid, and finally, an equation set is formed by using a distance formula between two points according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station, so that the position information of the main area base station of each UE in each group is determined; according to the embodiment of the invention, the work parameter data of each UE is acquired, the UE is grouped according to the main area base station, then the position information of each UE is determined according to the path loss from each UE to the main area base station and the path loss from each UE to the adjacent area base station in each group, and further the position information of the main area base station in each group is determined, and then the determined position information of the main area base station in each group is compared and checked with the longitude and latitude of the base station in the work parameter table, so that whether the longitude and latitude of the base station is correct or not can be determined, the detection efficiency of the base station position detection is improved when the base station is subjected to the position detection to determine the position of the base station, and the accuracy of the base station position detection is improved.
Based on the same inventive concept, this embodiment provides a device for determining a location of a base station, fig. 7 is a schematic structural diagram of the device for determining a location of a base station in the embodiment of the present invention, and as shown in fig. 7, the device for determining a location of a base station includes: a dividing module 71, a first determining module 72, a second determining module 73 and a third determining module 74;
the dividing module 71 is configured to obtain the longitude and latitude of each neighboring base station of each UE by looking up a table according to the obtained work parameter data of each user equipment UE, and divide UEs having the same main base station into a group; a first determining module 72, configured to determine, according to reference signal received power RSRP of the main area base station, RSRP of each neighboring base station, and transmit power in the working parameter data of each UE in each group, a path loss from each UE in each group to the main area base station and a path loss from each UE in each group to each neighboring base station; a second determining module 73, configured to determine location information of each UE in each group according to the longitude and latitude of each neighboring base station of each UE in each group and the path loss from each UE in each group to each neighboring base station; and a third determining module 74, configured to determine, 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 information of the main area base station of each UE in each group.
In order to determine the position coordinates of each UE in each group, in an alternative embodiment, the second determining module 73 includes: the grid submodule is used for rasterizing a preset area comprising the longitude and latitude of each neighboring base station of each UE in each group; the first determining submodule is used for determining the path loss from each grid to each adjacent cell base station by adopting a standard propagation model SPM according to the longitude and latitude of each adjacent cell base station of each UE in each group and the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group obtained by table look-up; and the second determining submodule is used for determining the position information of each UE in each group 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.
Obtaining the path loss NC _ SG from the central point of each grid of each UE to each neighbor base station through the formula (4) and the formula (5)pathlossAnd the path loss from each UE in each group to each neighboring base station is also obtained in S102, then, the location information of each UE in each group may be determined in two ways, and in an optional embodiment, the second determining sub-module is specifically configured to determine, as the location information of each UE in each group, the grid location information corresponding to the minimum value among the absolute values of the differences according to the absolute values of the differences 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; or determining the position information of each UE in each group by adopting a least square method 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.
In order to further determine the location information of the main area base station of each UE in each group, in an optional embodiment, the third determining module 74 is specifically configured to determine, according to a path loss from each UE in each group to the main area base station, a distance from each UE in each group to the main area base station by using an SPM propagation model; and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
In order to divide the UEs with the same master base station into one group, in an optional embodiment, the dividing module 71 is specifically configured to obtain the master base station identifier of each UE by looking up a table according to the master base station frequency point and the physical cell identifier PCI in the obtained worker parameter data of each UE, and obtain the longitude and latitude of each neighboring base station of each UE by looking up a table according to the neighboring base station frequency point and the physical cell identifier PCI in the obtained worker parameter data of each UE; and according to the main area base station identification of each UE, dividing the UEs with the same main area base station identification into a group.
In practical applications, the dividing module 71, the first determining module 72, the second determining module 73, the third determining module 74, the grid sub-module, the first determining sub-module and the second determining sub-module may be implemented by a Central Processing Unit (CPU), a Microprocessor Unit (MPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like located in a server.
This embodiment describes a computer-readable medium, which may be a ROM (e.g., read only memory, F L ASH memory, transfer device, etc.), a magnetic storage medium (e.g., magnetic tape, disk drive, etc.), an optical storage medium (e.g., CD-ROM, DVD-ROM, paper card, paper tape, etc.), and other well-known types of program memory, having stored thereon computer-executable instructions that, when executed, cause at least one processor to perform operations comprising:
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 base station of each UE, and dividing the UEs with the same main base station into a group; determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each adjacent base station in the work parameter data of each UE in each group; determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; and determining the position information of the main area base station of each UE in each group according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station.
The method for determining the position of the base station provided by the embodiment of the invention comprises the steps of firstly, according to the obtained work parameter data of each UE, looking up a table to obtain the longitude and latitude of each neighboring base station of each UE, and dividing the UEs with the same main base station into a group; in this way, the UEs divided into one group correspond to the same main base station, and then the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station are determined according to the RSRP of the main base station, the RSRP of each adjacent base station and the transmitting power in the work parameter data of each UE in each group; secondly, determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station; that is, the position information of each UE in each group is obtained by a method of traversing the grid, and finally, an equation set is formed by using a distance formula between two points according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station, so that the position information of the main area base station of each UE in each group is determined; according to the embodiment of the invention, the work parameter data of each UE is acquired, the UE is grouped according to the main area base station, then the position information of each UE is determined according to the path loss from each UE to the main area base station and the path loss from each UE to the adjacent area base station in each group, and further the position information of the main area base station in each group is determined, and then the determined position information of the main area base station in each group is compared and checked with the longitude and latitude of the base station in the work parameter table, so that whether the longitude and latitude of the base station is correct or not can be determined, the detection efficiency of the base station position detection is improved when the base station is subjected to the position detection to determine the position of the base station, and the accuracy of the base station position detection is improved.
Here, it should be noted that: the descriptions of the embodiments of the apparatus are similar to the descriptions of the methods, and have the same advantages as the embodiments of the methods, and therefore are not repeated herein. For technical details that are not disclosed in the embodiments of the apparatus of the present invention, those skilled in the art should refer to the description of the embodiments of the method of the present invention to understand, and for brevity, will not be described again here.
Here, it should be noted that:
it should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all 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 sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A method for determining a location of a base station, comprising:
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 base station of each UE, and dividing the UEs with the same main base station into a group;
determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each neighbor base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each neighbor base station in the work parameter data of each UE in each group;
determining the position information of each UE in each group according to the longitude and latitude of each adjacent base station of each UE in each group and the path loss from each UE in each group to each adjacent base station;
determining the position information of the main area base station of each UE in each group according to the position information of each UE in each group and the path loss from each UE in each group to the main area base station;
the determining the position 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 comprises the following steps:
rasterizing a preset area including the longitude and latitude of each neighboring base station of each UE in each group;
determining the path loss from each grid to each adjacent cell base station by adopting a standard propagation model SPM according to the longitude and latitude of each adjacent cell base station of each UE in each group and the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group obtained by table look-up;
and determining the position information of each UE in each group 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 of claim 1, wherein the determining the location information of each UE in each group 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 comprises:
determining grid position information corresponding to the minimum value in the absolute values of the differences according to the absolute values of the differences between 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 as the position information of each UE in each group;
or determining the position information of each UE in each group by adopting a least square method 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.
3. The method of claim 1, wherein the determining 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 of each UE in each group to the main area base station comprises:
determining the distance from each UE in each group to the main base station by adopting an SPM propagation model according to the path loss from each UE in each group to the main base station;
and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
4. The method of claim 1, wherein the obtaining, by looking up a table according to the obtained work parameter data of each UE, the longitude and latitude of each neighboring base station of each UE, and dividing the UEs having the same main base station into a group comprises:
according to the main area base station frequency point and the physical cell identification PCI in the obtained work parameter data of each UE, looking up a table to obtain the main area base station identification of each UE, and according to the adjacent area base station frequency point and the PCI in the work parameter data of each UE, looking up the table to obtain the longitude and latitude of each adjacent area base station of each UE;
and dividing the UEs with the same main area base station identification into a group according to the main area base station identification of each UE.
5. An apparatus for determining a location of a base station, comprising:
the dividing module is used for looking up a table to obtain the longitude and latitude of each neighboring base station of each UE according to the acquired work parameter data of each user terminal UE, and dividing the UEs with the same main base station into a group;
the first determining module is used for determining the path loss from each UE in each group to the main base station and the path loss from each UE in each group to each adjacent base station according to the Reference Signal Received Power (RSRP) of the main base station, the RSRP and the transmitting power of each adjacent base station in the work parameter data of each UE in each group;
a second determining module, configured to determine location information of each UE in each group according to the longitude and latitude of each neighboring base station of each UE in each group and a path loss from each UE in each group to each neighboring base station;
a third determining module, configured to determine, according to the location information of each UE in each group and a path loss from each UE in each group to a main area base station, the location information of the main area base station of each UE in each group;
the second determining module includes:
the grid submodule is used for rasterizing a preset area comprising the longitude and latitude of each neighboring base station of each UE in each group;
the first determining submodule is used for determining the path loss from each grid to each adjacent cell base station by adopting a standard propagation model SPM according to the longitude and latitude of each adjacent cell base station of each UE in each group and the antenna azimuth angle corresponding to each adjacent cell base station of each UE in each group obtained by table look-up;
and a second determining submodule, configured to determine location information of each UE in each group according to 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.
6. The apparatus according to claim 5, wherein the second determining sub-module is specifically configured to determine, as the location information of each UE in each group, grid location information corresponding to a minimum value among absolute values of differences, according to absolute values of the differences between the path loss of each grid to each neighboring base station and the path loss of each UE in each group to each neighboring base station; or determining the position information of each UE in each group by adopting a least square method 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.
7. The apparatus according to claim 5, wherein the third determining module is specifically configured to determine, according to a path loss from each UE in each group to the primary base station, a distance from each UE in each group to the primary base station by using an SPM propagation model; and determining the position information of the main area base station of each UE in each group according to the distance from each UE in each group to the main area base station and the position information of each UE in each group.
8. The apparatus according to claim 5, wherein the dividing module is specifically configured to obtain a main area base station identifier of each UE by looking up a table according to a main area base station frequency point and a physical cell identifier PCI in the obtained working parameter data of each UE, and obtain a longitude and a latitude of each neighboring area base station of each UE by looking up a table according to a neighboring area base station frequency point and a PCI in the obtained working parameter data of each UE; and dividing the UEs with the same main area base station identification into a group according to the main area base station identification of each UE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037624.6A CN108111965B (en) | 2016-11-23 | 2016-11-23 | Method and device for determining position of base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037624.6A CN108111965B (en) | 2016-11-23 | 2016-11-23 | Method and device for determining position of base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108111965A CN108111965A (en) | 2018-06-01 |
| CN108111965B true CN108111965B (en) | 2020-07-10 |
Family
ID=62204655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611037624.6A Active CN108111965B (en) | 2016-11-23 | 2016-11-23 | Method and device for determining position of base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108111965B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451532B (en) * | 2018-11-16 | 2021-10-15 | 中国联合网络通信集团有限公司 | Method and device for checking position of base station |
| CN109561480B (en) * | 2018-12-26 | 2021-03-19 | 中国联合网络通信集团有限公司 | Base station position deviation rectifying method and system |
| CN110990500B (en) * | 2019-03-29 | 2023-12-15 | 天维讯达(湖南)科技有限公司 | Propagation path model map establishment method and path loss determination method |
| CN112534891B (en) * | 2019-07-19 | 2023-04-28 | Oppo广东移动通信有限公司 | Uplink power control method and device for sounding reference signal transmission |
| CN112566147B (en) * | 2019-09-26 | 2022-11-01 | 中国移动通信集团山东有限公司 | Longitude and latitude verification method and device, storage medium and computer equipment |
| CN111542079B (en) * | 2020-04-30 | 2023-01-31 | 四川创智联恒科技有限公司 | Method, system, terminal device and readable storage medium for matching background configuration with actual site in base station activation |
| CN114095856B (en) * | 2020-07-31 | 2022-09-23 | 中国电信股份有限公司 | Processing method and processing device for saving energy of base station |
| CN112911502B (en) * | 2021-01-20 | 2022-07-01 | 东南大学 | Base station longitude and latitude estimation method based on MDT technology and RSRP ranging |
| CN114363802A (en) * | 2021-12-24 | 2022-04-15 | 中国电信股份有限公司 | Antenna positioning method, device, medium and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2604075A1 (en) * | 2010-08-13 | 2013-06-19 | Nec Corporation | Methods and apparatuses for cell selection in a communications network |
| CN103369668A (en) * | 2012-03-27 | 2013-10-23 | 中兴通讯股份有限公司 | Method and device for using wireless communication system to locate position, and mobile terminal |
| CN104837190A (en) * | 2014-02-07 | 2015-08-12 | 中国电信股份有限公司 | Method used for realizing adaptive open loop power control and apparatus |
| CN105792238A (en) * | 2014-12-24 | 2016-07-20 | 中国移动通信集团上海有限公司 | Pseudo base station locating method and pseudo base station locating device |
-
2016
- 2016-11-23 CN CN201611037624.6A patent/CN108111965B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2604075A1 (en) * | 2010-08-13 | 2013-06-19 | Nec Corporation | Methods and apparatuses for cell selection in a communications network |
| CN103369668A (en) * | 2012-03-27 | 2013-10-23 | 中兴通讯股份有限公司 | Method and device for using wireless communication system to locate position, and mobile terminal |
| CN104837190A (en) * | 2014-02-07 | 2015-08-12 | 中国电信股份有限公司 | Method used for realizing adaptive open loop power control and apparatus |
| CN105792238A (en) * | 2014-12-24 | 2016-07-20 | 中国移动通信集团上海有限公司 | Pseudo base station locating method and pseudo base station locating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108111965A (en) | 2018-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108111965B (en) | Method and device for determining position of base station | |
| US10306415B2 (en) | Method for positioning using wireless signal and positioning server | |
| CN103096464B (en) | Single base station user method of locating terminal and system | |
| CN106658399B (en) | Method for positioning mobile phone position based on mobile phone user position fingerprint | |
| US9313617B2 (en) | Identification of points of interest and positioning based on points of interest | |
| US20150133167A1 (en) | Techniques for efficient rf heat map representation | |
| CN110881191B (en) | Method, device and system for acquiring longitude and latitude of cell and storage medium | |
| US8433250B2 (en) | Estimating whether a wireless terminal is indoors using pattern classification | |
| CN105611568A (en) | Method for accurately positioning LTE terminal based on MRO measurement report | |
| CN109936820B (en) | User terminal positioning method and device | |
| CN112469066B (en) | 5G network coverage evaluation method and device | |
| CN103763773B (en) | The localization method and device of a kind of mobile terminal | |
| CN110868752A (en) | Terminal positioning method and device | |
| CN109286893A (en) | The method and apparatus of positioning | |
| JP2016148519A (en) | Management device, program and method for estimating floor height for each building by using atmospheric pressure value or altitude | |
| CN102625444A (en) | Terminal positioning method and base station | |
| CN103404177B (en) | Node and method for positioning | |
| CN102843766B (en) | Method and system for locating Home NodeB, method and system for updating location information | |
| US10517063B2 (en) | Enhancing an estimate of the location of a wireless terminal by using one or more types of identifiers of a wireless network | |
| CN111817807A (en) | Broadcast-based differential data broadcasting method, device, equipment and storage medium | |
| CN111818550B (en) | Method, device and equipment for predicting network coverage condition | |
| US9910131B2 (en) | Method and device for positioning terminal location | |
| CN105848202A (en) | Correction processing method and device for AOAs (Angles of Arrival) and TAs (Time Advances) | |
| CN105828342B (en) | Method and device for confirming neighbor relation | |
| CN104135547B (en) | A kind of IP address properties verification method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |