CN109963297B - Method, apparatus and computer-readable storage medium for determining base station basic information - Google Patents
Method, apparatus and computer-readable storage medium for determining base station basic information Download PDFInfo
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- CN109963297B CN109963297B CN201711425956.6A CN201711425956A CN109963297B CN 109963297 B CN109963297 B CN 109963297B CN 201711425956 A CN201711425956 A CN 201711425956A CN 109963297 B CN109963297 B CN 109963297B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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Abstract
The disclosure provides a method, a device and a computer readable storage medium for determining base station basic information, and relates to the field of communication. The method comprises the following steps: collecting drive test data; selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point and comprises position information of the measuring point and distance information from the measuring point to the main service base station; and determining the position information of the main service base station according to the plurality of drive test records. By analyzing the drive test data, the basic data of the base station can be determined timely and accurately.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a method, an apparatus, and a computer-readable storage medium for determining base station basic information.
Background
The basic data of the base station, such as longitude and latitude coordinates, antenna azimuth angles and the like, of the base station have important significance for wireless network maintenance and management.
At present, basic data such as longitude and latitude coordinates, antenna azimuth angles and the like of a base station are measured and filled in on site by engineering constructors when the base station is built. In daily operation and maintenance, the position of a base station and the azimuth angle of an antenna are changed due to operations such as relocation, optimization, maintenance and the like, and relevant basic information needs to be updated in time.
Operators have a large number of base stations throughout cities, towns and rural areas. Basic data of the base station is maintained and updated by basic personnel, and is manually reported step by step from bottom to top. The manual reporting mode causes the recorded basic data of the base station to have the problems of timeliness and accuracy.
Disclosure of Invention
The technical problem to be solved by the embodiment of the present disclosure is the timeliness and accuracy problem existing in the manual maintenance and update mode of the base station basic data.
According to an aspect of the present disclosure, a method for determining base station basic information is provided, including:
collecting drive test data;
selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point and comprises position information of the measuring point and distance information from the measuring point to the main service base station;
and determining the position information of the main service base station according to the plurality of drive test records.
In some embodiments, the plurality of drive test records includes N sets of drive test records, each set of drive test record includes three drive test records, N is a natural number, and determining the location information of the primary serving base station includes:
determining estimated position information of the main service base station by adopting a three-point positioning method according to each group of drive test records;
and fusing the N pieces of estimated position information of the main service base station to determine the position information of the main service base station.
In some embodiments, determining an estimated location information of the primary serving base station comprises:
selecting two measuring points with smaller distance information from the measuring points to the main service base station from each group of drive test records;
forming two circles by taking each selected measuring point as the center of a circle and the distance information between the measuring point and the main service base station as the radius;
and determining estimated position information of the main service base station according to the position relation of the two circles and the unselected measuring points in the set of drive test records.
In some embodiments, determining an estimated location information of the primary serving base station comprises:
if the two circles are circumscribed, determining a circumscribed point as estimated position information of the main service base station;
if the two circles are separated, determining an intersection point which is closer to the unselected measuring point in intersection points of connecting lines of the two circles and the circle center as estimated position information of the main service base station;
if the two circles are intersected, determining an intersection point which is closer to the unselected measuring point in the intersection points of the two circles as estimated position information of the main service base station;
if the two circular phases comprise the two circular phases, connecting lines from the centers of the large circles of the two circles to the centers of the small circles of the two circles and extending the lines, and determining an intersection point which is closer to the unselected measurement point in the intersection points of the connecting lines and the two circles as estimated position information of the main service base station.
In some embodiments, determining the location information of the primary serving base station comprises:
and determining the average coordinate of the N pieces of estimated position information of the main service base station as the position information of the main service base station.
In some embodiments, the method further comprises: and determining the azimuth angle of the antenna of the main service base station according to the direction angle from the position information of the main service base station to each measuring point.
In some embodiments, the azimuth angle of the primary serving base station is an average of direction angles from the location information of the primary serving base station to the respective measurement points.
In some embodiments, the method further comprises: and discarding the measuring points with the position deviation larger than the mean square error of the position information of each measuring point in the plurality of drive test records.
In some embodiments, the distance information of the measurement point to the primary serving base station is determined from a time advance in the drive test data.
In some embodiments, the method further comprises: and comparing the determined base station basic information with the recorded base station basic information to find base station basic information with larger deviation.
According to another aspect of the present disclosure, an apparatus for determining base station basic information is provided, including: a module for performing the steps of the aforementioned method.
According to another aspect of the present disclosure, an apparatus for determining base station basic information is provided, including:
a memory; and
a processor coupled to the memory, the processor configured to perform the foregoing method based on instructions stored in the memory.
According to another aspect of the disclosure, a computer-readable storage medium is proposed, on which a computer program is stored which, when being executed by a processor, carries out the aforementioned method.
The embodiment of the disclosure can timely and accurately determine the basic data of the base station, such as the position and the antenna direction angle, by analyzing the drive test data.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a flow chart illustrating some embodiments of a method for determining base station basis information according to the present disclosure.
Fig. 2 is a schematic diagram of the present disclosure determining estimated location information of a primary serving base station when two circles are circumscribed.
Fig. 3 is a schematic diagram of determining estimated location information of a primary serving base station when two circles are separated according to the present disclosure.
Fig. 4 is a schematic diagram of the present disclosure determining estimated location information of a primary serving base station when two circles intersect.
Fig. 5 is a schematic diagram of determining estimated location information of a primary serving base station when two circles are included in the present disclosure.
Fig. 6 is a schematic structural diagram of some embodiments of the apparatus for determining base station basic information according to the present disclosure.
Fig. 7 is a schematic structural diagram of another embodiment of the apparatus for determining base station basic information according to the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 1 is a flow chart illustrating some embodiments of a method for determining base station basis information according to the present disclosure. As shown in fig. 1, the method of this embodiment includes:
In some embodiments, key information such as a primary serving base station identifier (which may be represented by a primary serving cell identifier, for example), TADV (Timing advance), longitude, latitude, and the like may be further extracted from the drive test data, and the distance information R from the measurement point to the primary serving base station is determined according to the Timing advance TADV in the drive test data, and the calculation formula is as follows: r ═ 0.078 × TADV (kilometer), resulting in an MDT profile, as shown in table 1.
TABLE 1
In some embodiments, the anomalous drive test data may be further scrubbed. The cleaning method is, for example: selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point, calculating the average value and the mean square error of the longitude and latitude of each measuring point aiming at the selected plurality of drive test records belonging to the same main service base station, respectively calculating the deviation of the longitude and latitude and the average longitude and latitude of each measuring point, and discarding the measuring point as abnormal data when the deviation is greater than the mean square error.
And step 120, selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point and comprises position information of the measuring point and distance information from the measuring point to the main service base station.
For example, the measurement point may be denoted as Pi＝(xi,yi,Ri)，xi,yiRepresenting the measurement point PiLatitude and longitude information of RiRepresenting the measurement point PiDistance to primary serving base station information.
In some embodiments, the plurality of drive test records includes N sets of drive test records, each set of drive test records including three drive test records, N being a natural number. For example, the nth set of drive test records is denoted as Gn＝{Pi，Pj，Pk}，Pi，Pj，PkThree drive test records are represented.
And step 130, determining the position information of the main service base station according to the plurality of drive test records.
In some embodiments, determining the location information of the primary serving base station comprises steps 131-132.
In step 131, an estimated location of the primary serving base station is determined using a three-point positioning method based on each set of drive test records.
In some embodiments, determining an estimated location information of the primary serving base station comprises:
first, two measurement points with smaller distance information from the measurement point to the primary serving base station are selected from each set of drive test records.
For example, from (P)i，Pj，Pk) Two measurement points with smaller R value are selected from the three points, and the R value is assumed to be PiAnd Pj。
Then, two circles are formed by taking each selected measuring point as the center of a circle and the distance information between the measuring point and the main service base station as the radius.
For example, with PiAnd PjAs a center of circle, RiAnd RjAre radii, each made as a circle OiAnd OjAnd is provided with PiAnd PjA distance d betweenij。
Then, an estimated location information of the primary serving base station is determined according to the location relationship between the two circles and the unselected measurement points in the set of drive test records.
Positional relationship 1: if the two circles are circumscribed, the circumscribed point is determined as estimated position information of the main service base station.
As shown in FIG. 2, dij＝Ri+RjI.e. OiAnd OjEstimation of circumscribed, circumscribed G-service base stationLocation.
Positional relationship 2: and if the two circles are separated, determining the intersection point which is closer to the unselected measuring point in the intersection points of the connecting lines of the two circles and the circle center as estimated position information of the main service base station.
As shown in FIG. 3, if dij>Ri+RjI.e. OiAnd OjSeparated from each other, connected to PiAnd PjTwo points, connecting line and Oi、OjThe intersection point of is denoted as GiAnd Gj. Recalculating GiAnd GjTo PkThe distance of (D) is denoted asiAnd dj. If it is not
|di-Rk|<|dj-RkI, then GiEstimate position preferred for primary serving base station, otherwise GjAn estimated position preferred for the primary serving base station.
Positional relationship 3: and if the two circles intersect, determining an intersection point which is closer to the unselected measuring point in the intersection points of the two circles as estimated position information of the main service base station.
As shown in FIG. 4, if dij<Ri+RjAnd d isij>|Ri-RjI, i.e. OiAnd OjIntersect, the intersection of the two circles is denoted as GiAnd Gj. Recalculating GiAnd GjTo PkThe distance of (D) is denoted asiAnd dj. If | di-Rk|<|dj-RkI, then GiEstimate position preferred for primary serving base station, otherwise GjAn estimated position preferred for the primary serving base station.
Positional relationship 4: if the two circles are contained, connecting lines from the centers of the large circles of the two circles to the centers of the small circles and extending the lines, and determining an intersection point which is closer to the unselected measurement point in the intersection points of the connecting lines and the two circles as estimated position information of the main service base station.
As shown in FIG. 5, if dij<|Ri-RjI, i.e. OiAnd OjThe phases comprise. From the centre of the great circle PjTowards the centre of a small circle PiMake a connection and extendIntersect two circles at GiAnd Gj. Recalculating GiAnd GjTo PkThe distance of (D) is denoted asiAnd dj. If | di-Rk|<|dj-RkI, then GiEstimate position preferred for primary serving base station, otherwise GjAn estimated position preferred for the primary serving base station.
Respectively calculating an estimated position information of the main service base station for each group of drive test records, and calculating N estimated position information optimized to the main service base station in total, and recording the N estimated position information as SN＝{(X1,Y1),(X2,Y2),……(XN,YN)}。
In step 132, the N estimated location information of the primary serving base station are fused to determine the location information of the primary serving base station.
For example, the average coordinates of the N pieces of estimated location information of the primary serving base station are determined as the location information S of the primary serving base station being (X, Y),
optionally, step 140 may also be performed to calculate other base station basis information.
In some embodiments, the azimuth angle of the primary serving base station is an average of the direction angles of the location information of the primary serving base station to the respective measurement points.
Position S of the primary serving base station to (X, Y) each measurement point PiDirection angle A ofiComprises the following steps:
calculating AiThe average value of (a) is the antenna azimuth angle a of the primary serving base station.
Optionally, step 150 may be executed to find out the base station basic information that does not conform to the actual situation in time.
And 150, comparing the determined base station basic information with the recorded base station basic information to find base station basic information with larger deviation.
And if the deviation between the determined position of the base station and the recorded position of the base station exceeds a preset distance, determining that the recorded position information of the base station is inaccurate.
The preset distances of the different areas can be set according to the difference of the distribution density and the positioning accuracy of the base station. For example, significant differences in the distribution density of urban and rural base stations place different demands on positioning accuracy. (1) For urban base stations, the base station positioning accuracy is 50 meters, and if the deviation between the determined position of the base station and the recorded position of the base station is more than 100 meters, the recorded position information of the base station is considered to be inaccurate. (2) For a rural base station, the positioning accuracy of the base station is 200 meters, and if the deviation between the determined position of the base station and the recorded position of the base station is more than 500 meters, the recorded position information of the base station is considered to be inaccurate.
And if the deviation between the determined antenna azimuth angle of the base station and the recorded antenna azimuth angle of the base station exceeds a preset angle, determining that the recorded antenna azimuth angle of the base station is inaccurate.
For base station basic information with a large variation, the recorded base station basic information may be updated using the determined base station basic information, or may be measured in real time and updated using the measured base station basic information in real time.
By analyzing the drive test data, the basic data such as the position and the antenna direction angle of the base station can be determined timely and accurately, and the quality and the efficiency of wireless network maintenance and management are improved.
Fig. 6 is a schematic structural diagram of some embodiments of the apparatus for determining base station basic information according to the present disclosure.
As shown in fig. 6, the apparatus 600 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 being configured to perform a method of determining base station basis information in any of the aforementioned embodiments based on instructions stored in the memory 610.
The apparatus 600 may also include an input-output interface 630, a network interface 640, a storage interface 650, and the like. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be, for example, via a bus 660. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also provides an apparatus for determining base station basic information, including: means for performing the steps of the method for determining base station basis information in any of the preceding embodiments.
Fig. 7 is a schematic structural diagram of another embodiment of the apparatus for determining base station basic information according to the present disclosure.
As shown in fig. 7, the apparatus 700 of this embodiment includes:
the data processing module 710 is used for acquiring drive test data; selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point and comprises position information of the measuring point and distance information from the measuring point to the main service base station;
a location determining module 720, configured to determine location information of the primary serving base station according to the multiple drive test records.
In some embodiments, the plurality of drive test records includes N sets of drive test records, each set of drive test records includes three drive test records, N is a natural number, and the position determining module 720 is configured to:
determining estimated position information of the main service base station by adopting a three-point positioning method according to each group of drive test records;
and fusing the N pieces of estimated position information of the main service base station to determine the position information of the main service base station.
In some embodiments, the location determination module 720, in determining an estimated location information of the primary serving base station, is configured to:
selecting two measuring points with smaller distance information from the measuring points to the main service base station from each group of drive test records;
forming two circles by taking each selected measuring point as the center of a circle and the distance information between the measuring point and the main service base station as the radius;
and determining estimated position information of the main service base station according to the position relation of the two circles and the unselected measuring points in the set of drive test records.
In some embodiments, the location determination module 720, in determining an estimated location information of the primary serving base station, is configured to:
if the two circles are circumscribed, determining the circumscribed point as estimated position information of the main service base station;
if the two circles are separated from each other, determining an intersection point which is closer to the unselected measuring point in intersection points of connecting lines of the two circles and the circle center as estimated position information of the main service base station;
if the two circles intersect, determining an intersection point which is closer to the unselected measuring point in the intersection points of the two circles as estimated position information of the main service base station;
if the two circles are contained, connecting lines from the centers of the large circles of the two circles to the centers of the small circles and extending the lines, and determining an intersection point which is closer to the unselected measurement point in the intersection points of the connecting lines and the two circles as estimated position information of the main service base station.
A location determining module 720, when determining the location information of the primary serving base station, configured to: and determining the average coordinate of the N pieces of estimated position information of the main service base station as the position information of the main service base station.
As shown in fig. 7, the apparatus 700 of this embodiment further includes: the azimuth angle determining module 730 is configured to determine an antenna of the primary serving base station according to the direction angle from the location information of the primary serving base station to each measurement point.
In some embodiments, the azimuth angle of the primary serving base station is an average of the direction angles of the location information of the primary serving base station to the respective measurement points.
In some embodiments, the data processing module 710 is further configured to discard the measurement points in the plurality of drive test records whose position deviations are greater than the mean square error of the position information of each measurement point.
In some embodiments, the distance information of the measurement point to the primary serving base station is determined from a time advance in the drive test data.
As shown in fig. 7, the apparatus 700 of this embodiment further includes: the finding module 740 is configured to compare the determined base station basic information with the recorded base station basic information to find base station basic information with a larger deviation.
The present disclosure also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of determining base station basis information in any of the aforementioned embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A method of determining base station basis information, comprising:
collecting drive test data;
selecting a plurality of drive test records belonging to the same main service base station from the drive test data, wherein each drive test record represents a measuring point and comprises position information of the measuring point and distance information from the measuring point to the main service base station;
determining the position information of the main service base station according to the plurality of drive test records;
wherein, many drive test records include N group drive test records, and every group drive test record includes three drive test records, and N is the natural number, confirms main service base station's positional information includes:
determining estimated position information of the main service base station by adopting a three-point positioning method according to each group of drive test records, wherein the method comprises the following steps: selecting two measuring points with smaller distance information from the measuring points to the main service base station from each group of drive test records; forming two circles by taking each selected measuring point as the center of a circle and the distance information between the measuring point and the main service base station as the radius; if the two circles are circumscribed, determining a circumscribed point as estimated position information of the main service base station; if the two circles are away from each other, determining an intersection point which is closer to the unselected measuring point in intersection points of connecting lines of the two circles and the circle center as estimated position information of the main service base station; if the two circles are intersected, determining an intersection point which is closer to the unselected measuring point in the intersection points of the two circles as estimated position information of the main service base station; if the two round phases comprise the two round phases, connecting and extending a line from the circle center of the large circle of the two circles to the circle center of the small circle, and determining an intersection point which is closer to the unselected measurement point in the intersection points of the line and the two circles as estimated position information of the main service base station;
and fusing the N pieces of estimated position information of the main service base station to determine the position information of the main service base station.
2. The method of claim 1, wherein determining the location information of the primary serving base station comprises:
and determining the average coordinate of the N pieces of estimated position information of the main service base station as the position information of the main service base station.
3. The method of claim 1, further comprising:
and determining the azimuth angle of the antenna of the main service base station according to the direction angle from the position information of the main service base station to each measuring point.
4. The method of claim 3, wherein the antenna azimuth angle of the primary serving base station is an average of direction angles of the location information of the primary serving base station to the respective measurement points.
5. The method of claim 1, further comprising:
and discarding the measuring points with the position deviation larger than the mean square error of the position information of each measuring point in the plurality of drive test records.
6. The method of claim 1, wherein the distance information of the measurement point to the primary serving base station is determined from a timing advance in the drive test data.
7. The method of claim 1 or 3, further comprising:
and comparing the determined base station basic information with the recorded base station basic information to find base station basic information with larger deviation.
8. An apparatus for determining base station basis information, comprising:
a module for performing the steps of the method of any one of claims 1 to 7.
9. An apparatus for determining base station basis information, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-7 based on instructions stored in the memory.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 7.
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