CN109803268B - Method and device for determining associated sector and computer readable storage medium - Google Patents
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Abstract
The disclosure relates to a method and a device for determining an associated sector and a computer-readable storage medium, and relates to the technical field of communication. The method of the present disclosure comprises: taking a base station with a true north azimuth angle relative to a target base station within a preset range as an alternative associated base station; determining a relevant base station from the alternative relevant base stations according to the distance between the alternative relevant base stations and the target base station; and determining at least one sector corresponding to the associated base station as the associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station. The method disclosed by the invention can automatically select the sector with the maximum correlation with the target sector without manually participating in the calculation process, so that the determination efficiency of the associated sector is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for determining an associated sector, and a computer-readable storage medium.
Background
In a mobile communication network, a base station and a base station, and a sector are associated with each other rather than independent, a network problem occurs in a certain sector, and often there is a relationship with a sector of an adjacent base station pointing to the same area, and the problem can be accurately judged by analyzing the network problem of the sector and the associated sector together.
In a mobile network consisting of massive base stations, when analyzing user telephone bills, complaint information and certain specific network problem sectors, network optimization personnel can only obtain the relevant information of one sector, and the area pointed by the sector is covered by other sectors, and the network optimization personnel can only determine the relevant sector of a certain target sector by manually checking the base station sector geographical physicochemical layers one by one.
Disclosure of Invention
The inventor finds that: the method for manually determining the associated sector by network optimization personnel wastes time and labor and has low efficiency.
One technical problem to be solved by the present disclosure is: a method for automatically determining the associated sector is provided, and the determination efficiency of the associated sector is improved.
According to some embodiments of the present disclosure, there is provided a method for determining an associated sector, including: taking a base station with a true north azimuth angle relative to a target base station within a preset range as an alternative associated base station; determining a relevant base station from the alternative relevant base stations according to the distance between the alternative relevant base stations and the target base station; and determining at least one sector corresponding to the associated base station as the associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station.
In some embodiments, the preset range is determined according to the azimuth angle of the target sector corresponding to the target base station, the range angle of the target sector, and the antenna half-power angle of the target sector.
In some embodiments, the preset range is the azimuth of the target sector minus the angle value of the first angle value to the azimuth of the target sector plus the second angle value; the value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector; the second angle value ranges from one half of the antenna half power angle to one half of the range angle of the target sector.
In some embodiments, the true north azimuth of the base station relative to the target base station is calculated using the following formula:
m＝90-b
n＝90-y
O＝a-x
cos p＝cos m*cos n+sin m*sin n*cos O
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p
wherein θ is a true north azimuth of the base station B relative to the target base station a, m, n, and P are radians of three arcs of a spherical triangle formed by the target base station a, the base station B, and the north pole P, respectively, x is a longitude of the target base station a, y is a latitude of the target base station a, a is a longitude of the base station B, B is a latitude of the base station B, and O is a dihedral angle of a plane formed by the target base station a, the geocenter, and the north pole P and a plane formed by the base station B, the geocenter, and the north pole P.
In some embodiments, the distance between the base station and the target base station is calculated using the following formula:
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]}
wherein, L is the distance from the target base station A to the base station B, x is the longitude of the target base station A, y is the latitude of the target base station A, a is the longitude of the base station B, B is the latitude of the base station B, and R is the radius of the earth.
In some embodiments, determining at least one sector corresponding to the associated base station as the associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station includes: respectively calculating the angle difference between the azimuth angle of each sector corresponding to the associated base station and the true north azimuth angle of the associated base station relative to the target base station; and selecting the sector with the corresponding angle difference lower than the angle threshold value as the associated sector.
In some embodiments, the method further comprises: acquiring at least one service quality index of each sector from a comprehensive network management system; determining the service quality of each sector according to the service quality index of each sector; and selecting a sector with the service quality lower than a threshold value as a target sector, and taking a base station corresponding to the target sector as a target base station.
In some embodiments, determining the quality of service for each sector based on the quality of service indicator for each sector comprises: weighting and summing the service quality indexes to serve as a basic score of the sector; determining the average value and the standard deviation of the basic scores of all the sectors in the same preset area; and taking the ratio of the difference value of the base score minus the average value of the sector to the standard deviation as the service quality of the sector.
According to other embodiments of the present disclosure, there is provided an associated sector determining apparatus, including: the alternative associated base station determining module is used for taking a base station of which the true north azimuth angle relative to the target base station is within a preset range as an alternative associated base station; the associated base station determining module is used for determining an associated base station from the alternative associated base stations according to the distance between the alternative associated base station and the target base station; and the associated sector determining module is used for determining at least one sector corresponding to the associated base station as an associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station.
In some embodiments, the preset range is determined according to the azimuth angle of the target sector corresponding to the target base station, the range angle of the target sector, and the antenna half-power angle of the target sector.
In some embodiments, the preset range is the azimuth of the target sector minus the angle value of the first angle value to the azimuth of the target sector plus the second angle value; the value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector; the second angle value ranges from one half of the antenna half power angle to one half of the range angle of the target sector.
In some embodiments, the true north azimuth of the base station relative to the target base station is calculated using the following formula:
m＝90-b
n＝90-y
0＝a-x
cos p＝cos m*cos n+sin m*sin n*cos O
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p
wherein θ is a true north azimuth of the base station B relative to the target base station a, m, n, and P are radians of three arcs of a spherical triangle formed by the target base station a, the base station B, and the north pole P, respectively, x is a longitude of the target base station a, y is a latitude of the target base station a, a is a longitude of the base station B, B is a latitude of the base station B, and O is a dihedral angle of a plane formed by the target base station a, the geocenter, and the north pole P and a plane formed by the base station B, the geocenter, and the north pole P.
In some embodiments, the distance between the base station and the target base station is calculated using the following formula:
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]}
wherein, L is the distance from the target base station A to the base station B, x is the longitude of the target base station A, y is the latitude of the target base station A, a is the longitude of the base station B, B is the latitude of the base station B, and R is the radius of the earth.
In some embodiments, the associated sector determining module is configured to calculate an angle difference between an azimuth of each sector corresponding to the associated base station and a true north azimuth of the associated base station relative to the target base station, and select a sector whose corresponding angle difference is lower than an angle threshold as the associated sector.
In some embodiments, the apparatus further comprises: and the target sector determining module is used for acquiring at least one service quality index of each sector from the comprehensive network management system, determining the service quality of each sector according to the service quality index of each sector, selecting the sector with the service quality lower than a threshold value as a target sector, and taking a base station corresponding to the target sector as a target base station.
In some embodiments, the target sector determining module is configured to perform weighted summation on the service quality indicators to serve as a base score of the sector, determine an average value and a standard deviation of the base scores of all sectors in the same preset area, and determine a ratio of a difference between the base score of the sector and the average value to the standard deviation to serve as the service quality of the sector.
According to still other embodiments of the present disclosure, there is provided an apparatus for determining an associated sector, including: a memory; and a processor coupled to the memory, the processor configured to perform the method of determining associated sectors as in any of the preceding embodiments based on instructions stored in the memory device.
According to further embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps of the method for determining associated sectors of any of the preceding embodiments.
The method comprises the steps of selecting an alternative associated base station according to the true north azimuth of each base station and a target base station, determining an associated base station according to the distance between the alternative associated base station and the target base station, and determining an associated sector according to the azimuth of a sector corresponding to the associated base station and the true north azimuth of the associated base station relative to the target base station. The method disclosed by the invention can automatically select the sector with the maximum correlation with the target sector without manually participating in the calculation process, so that the determination efficiency of the associated sector is improved.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 illustrates a flow diagram of a method of determining associated sectors of some embodiments of the present disclosure.
Fig. 2 illustrates a schematic diagram of an associated base station search of some embodiments of the present disclosure.
FIG. 3 illustrates a schematic diagram of determining associated sectors in some embodiments of the present disclosure
Fig. 4 shows a flow diagram of a method of determining associated sectors of further embodiments of the present disclosure.
Fig. 5 illustrates a schematic structural diagram of a determination device of an associated sector according to some embodiments of the disclosure.
Fig. 6 shows a schematic structural diagram of a sector association determination apparatus according to further embodiments of the present disclosure.
Fig. 7 is a schematic structural diagram of a sector association determination apparatus according to still other embodiments of the 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, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The method for automatically determining the associated sector aims at solving the problems of time and labor waste and low efficiency of a method for manually determining the associated sector by network optimization personnel. The determination method of the associated sector of the present disclosure is described below in conjunction with fig. 1.
Fig. 1 is a flow chart of some embodiments of a method for determining an associated sector according to the present disclosure. As shown in fig. 1, the method of this embodiment includes: steps S102 to S106.
And step S102, taking the base station with the true north azimuth angle relative to the target base station within a preset range as a candidate associated base station.
Assume that the latitude and longitude of the target base station a is (x, y) and the latitude and longitude of the base station B is (a, B). Optionally, an Application Programming Interface (API) of the electronic map may be called, and the longitude and latitude of the target base station a are input as (x, y), and the longitude and latitude of the base station B are input as (a, B), so as to obtain the distance between the target base station a and the base station B and the true north azimuth of the base station B relative to the target base station a.
Optionally, according to the longitude and latitude of the target base station a and the base station B, the target base station a and the base station B may be used as two points on the earth to calculate the distance between the target base station a and the base station B and the true north azimuth of the base station B relative to the target base station a. The earth is assumed to be a standard sphere with the radius of R, and the east longitude is set to be positive, the west longitude is set to be negative, the north latitude is set to be positive, and the south latitude is set to be negative. The latitude and longitude (x,
y) in a coordinate system with the centroid as the origin, the coordinates can be expressed as (R + cosy + cosx,
r × cosy × sinx, R × siny), the longitude and latitude of the base station B can be represented as (R × cosb × cosa, R × cosb × sina, R × sinb). Further, the distance L between the target base station a and the base station B may be calculated using the following formula.
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]} (1)
The target base station A, the base station B and the north pole (set as P) form a spherical triangle ABP, m, n and P are respectively the radians of three arcs of the spherical triangle formed by the target base station A, the base station B and the north pole P, and O is a dihedral angle of a surface formed by the target base station A, the geocenter and the north pole P and a surface formed by the base station B, the geocenter and the north pole P. Then there are:
m＝90-b (2)
n＝90-y (3)
O＝a-x (4)
further, according to the spherical trigonometric cosine formula, the following can be obtained:
cos p＝cos m*cos n+sin m*sin n*cos O (5)
p can be obtained from the above equation. Further, the base station B can be obtained from the following equation
True north azimuth theta with respect to target base station a.
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p(6)
According to the formula, the true north azimuth angle of each base station relative to the target base station can be obtained, whether the true north azimuth angle of each base station relative to the target base station is in a preset range or not is judged, and the base stations in the preset range are used as alternative base stations. The preset range may be determined according to the azimuth angle of the target sector corresponding to the target base station, the range angle of the target sector, and the antenna half-power angle of the target sector.
In some embodiments, the preset range is an angle value of the azimuth of the target sector minus the first angle value to the azimuth of the target sector plus the second angle value. The azimuth of the target sector is also true north. For example, the azimuth angle of the target sector is α and the first angle value is β1The second angle value is beta2The predetermined range is (alpha-beta)1，α+β2). The value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector; the second angle value ranges from one half of the antenna half power angle to one half of the range angle of the target sector, i.e. the range angle
Is the antenna half-power angle and ω is the range angle of the target sector.
E.g. antenna half power angle of target sector
The range angle ω of the target sector is 120 °, and the first angle value and the second angle value may be any value of 30 ° to 60 °. Assuming that the first angle value is 40 °, the second angle value is 45 °, and the azimuth angle of the target sector is
70 deg., then the preset range is (30 deg., 115 deg.), i.e., when the true north azimuth angle of the base station of 30 deg. ≦ 115 deg. relative to the target base station, the base station may be the alternate associated base station.
The determination method of the preset range is not limited to the above-mentioned examples. The preset range can also be determined according to the actual application scene. For example, the preset range may be set with reference to the deployment situation of the actual base station, i.e., the respective situations of the base stations around the target base station.
In some embodiments, a search range of the associated base station may be first set on the electronic map according to the position of the target base station a and the azimuth of the target base station a, and the base stations within the search range of the associated base station may be used as alternative associated base stations, and the true north azimuth of the base stations within the search range of the associated base station with respect to the target base station is within a preset range. For example, referring to fig. 2, the search range of the associated base station is a sector-like area, and the included angles between two radii of the sector-like area and the azimuth direction of the target base station a are a first angle value and a second angle value, respectively. As shown in fig. 2, the base stations 2, 3, 4 fall within the associated base station search range, and the base station 1 falls outside the associated base station search range.
The base station in the range of the target sector most possibly influences the target sector, and the base station most possibly serves as an associated sector, particularly the base station located in the antenna half-power angle range of the target sector, and influences the target sector more greatly.
And step S104, determining the associated base station from the alternative associated base stations according to the distance between the alternative associated base station and the target base station.
In some embodiments, the base station closest to the target base station is selected from the candidate associated base stations and determined as the associated base station. If a plurality of associated sectors or associated base stations need to be determined, a distance threshold value can be set, and the base station with the distance from the target base station lower than the distance threshold value is determined as the associated base station. The distance between the base station and the target base station can be calculated with reference to formula (1). For example, referring to fig. 2, the base station 2 is the closest base station to the target base station a, and the base station 2 may be selected as the associated base station.
And step S106, determining at least one sector corresponding to the associated base station as the associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station.
Each base station corresponds to three sectors, and after the associated base station is determined, the associated sector needs to be further determined. In some embodiments, the angle difference between the azimuth angle of each sector corresponding to the associated base station and the true north azimuth angle of the associated base station relative to the target base station is calculated respectively; and selecting the sector with the corresponding angle difference lower than the angle threshold value as the associated sector.
For example, referring to fig. 3, the azimuth directions of the base station 2 corresponding to the three sectors are a,
and b and c, namely a, b and c, respectively form an angle with the true north direction, which is the azimuth angle of the three sectors. The smallest angle difference between the azimuth angle of the sector corresponding to the direction a and the azimuth angle of the target sector can be used as the associated sector of the target sector.
The method in the above embodiment selects the alternative associated base station according to the true north azimuth of each base station and the target base station, determines the associated base station according to the distance between the alternative associated base station and the target base station, and further determines the associated sector according to the azimuth of the sector corresponding to the associated base station and the true north azimuth of the associated base station relative to the target base station. The method of the embodiment can automatically select the sector with the maximum correlation with the target sector without manually participating in the calculation process, improves the determination efficiency of the associated sector, and is beneficial to the subsequent analysis of the network problem by utilizing the associated sector and the target sector together.
The target base station and target sector need to be first determined from a large number of base stations before the associated sector is determined. The present disclosure also provides a method of determining a target sector, described below in conjunction with fig. 4.
Fig. 4 is a flow chart of other embodiments of the method for determining an associated sector according to the present disclosure. As shown in fig. 4, before step S102, the method further includes: steps S402 to S406.
Step S402, obtaining service quality index of each sector from the comprehensive network management system.
The service quality indexes include: traffic, signal strength, bandwidth, etc.
Step S404, determining the service quality of each sector according to the service quality index of each sector.
In some embodiments, the service quality indicators are weighted and summed to serve as the base score of the sector, the average value and the standard deviation of the base scores of all sectors in the same preset area are determined, and the ratio of the difference value obtained by subtracting the average value from the base score of the sector to the standard deviation is used as the service quality of the sector. The predetermined area is, for example, a county area. The base score for a sector may be calculated using the following formula.
XjIs a base score, x, of sector jiIs the i-th quality of service indicator, gammaiAnd the weight corresponding to the ith service quality index is represented by i, which is a positive integer, and N is the number of the service quality indexes.
Further, an average value of the base scores of all sectors in the preset area is calculated
And standard deviation S. The quality of service for a sector may be calculated according to the following formula.
Step S406, selecting a sector with a service quality lower than a threshold value as a target sector, and selecting a base station corresponding to the target sector as a target base station.
After the target sector is selected, the associated sector is determined according to the method of the foregoing embodiment, and the information of the target sector and the associated sector is further extracted to perform analysis of network quality.
The method of the embodiment can automatically select the target sector with poor service quality, and can automatically check the area with poor network quality by combining the determination method of the associated sector, so as to further optimize the network data and improve the efficiency of network optimization.
The present disclosure also provides an associated sector determination apparatus, which is described below with reference to fig. 5.
Fig. 5 is a block diagram of some embodiments of the sector associated determination apparatus of the present disclosure. The apparatus 50 of this embodiment comprises:
a candidate associated base station determining module 502, configured to use a base station whose true north azimuth angle with respect to the target base station is within a preset range as a candidate associated base station.
In some embodiments, the preset range is determined according to the azimuth angle of the target sector corresponding to the target base station, the range angle of the target sector, and the antenna half-power angle of the target sector.
Specifically, the preset range is the sum of an angle value obtained by subtracting the first angle value from the azimuth angle of the target sector and a second angle value; the value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector; the second angle value ranges from one half of the antenna half power angle to one half of the range angle of the target sector.
The true north azimuth of the base station relative to the target base station may be calculated using the following formula:
m＝90-b
n＝90-y
O＝a-x
cos p＝cos m*cos n+sin m*sin n*cos O
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p
wherein θ is a true north azimuth of the base station B relative to the target base station a, m, n, and P are radians of three arcs of a spherical triangle formed by the target base station a, the base station B, and the north pole P, respectively, x is a longitude of the target base station a, y is a latitude of the target base station a, a is a longitude of the base station B, B is a latitude of the base station B, and O is a dihedral angle of a plane formed by the target base station a, the geocenter, and the north pole P and a plane formed by the base station B, the geocenter, and the north pole P.
And an associated base station determining module 504, configured to determine an associated base station from the candidate associated base stations according to a distance between the candidate associated base station and the target base station.
The distance between the base station and the target base station can be calculated by adopting the following formula:
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]}
wherein, L is the distance from the target base station A to the base station B, x is the longitude of the target base station A, y is the latitude of the target base station A, a is the longitude of the base station B, B is the latitude of the base station B, and R is the radius of the earth.
An associated sector determining module 506, configured to determine at least one sector corresponding to the associated base station as an associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station.
The associated sector determining module 506 is configured to calculate an angle difference between an azimuth of each sector corresponding to the associated base station and a true north azimuth of the associated base station relative to the target base station, and select a sector with a corresponding angle difference lower than an angle threshold as the associated sector.
In some embodiments, the determining device 50 of the associated sector may further include:
a target sector determining module 508, configured to obtain at least one service quality indicator of each sector from the integrated network management system, determine the service quality of each sector according to the service quality indicator of each sector, select a sector with a service quality lower than a threshold as a target sector, and use a base station corresponding to the target sector as a target base station.
In some embodiments, the target sector determining module 508 is configured to perform weighted summation on the qos indicators to serve as a base score of the sector, determine an average and a standard deviation of the base scores of all sectors in the same preset area, and determine a ratio of a difference between the base score of the sector and the average to the standard deviation to serve as the qos of the sector.
According to further embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the steps of the method for determining associated sectors of any of the preceding embodiments.
The determination means of the associated sector in the embodiments of the present disclosure may each be implemented by various computing devices or computer systems, which are described below in conjunction with fig. 6 and 7.
Fig. 6 is a block diagram of some embodiments of the sector associated determination apparatus of the present disclosure. As shown in fig. 6, the apparatus 60 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 configured to perform a method of determining an associated sector in any of the embodiments of the present disclosure based on instructions stored in the memory 610.
Fig. 7 is a block diagram of another embodiment of an associated sector determination apparatus of the present disclosure. As shown in fig. 7, the apparatus 70 of this embodiment includes: the memory 710 and the processor 720 may further include an input/output interface 730, a network interface 740, a storage interface 750, and the like, similar to the memory 610 and the processor 620, respectively. These interfaces 730, 740, 750, as well as the memory 710 and the processor 720, may be connected, for example, by a bus 760. The input/output interface 730 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 740 provides a connection interface for various networking devices, such as a database server or a cloud storage server. The storage interface 750 provides a connection interface for external storage devices such as an SD card and a usb disk.
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 (16)
1. A method of determining an associated sector, comprising:
taking a base station with a true north azimuth angle relative to a target base station within a preset range as an alternative associated base station;
determining a relevant base station from alternative relevant base stations according to the distance between the alternative relevant base stations and the target base station;
determining at least one sector corresponding to the associated base station as an associated sector according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station;
wherein, the determining, according to the true north azimuth of the associated base station relative to the target base station and the azimuth of each sector corresponding to the associated base station, at least one sector corresponding to the associated base station as an associated sector includes:
respectively calculating the angle difference between the azimuth angle of each sector corresponding to the associated base station and the true north azimuth angle of the associated base station relative to the target base station;
and selecting the sector with the corresponding angle difference lower than the angle threshold value as the associated sector.
2. The determination method according to claim 1,
the preset range is determined according to the azimuth angle of a target sector corresponding to the target base station, the range angle of the target sector and the antenna half-power angle of the target sector.
3. The determination method according to claim 2,
the preset range is the sum of an angle value obtained by subtracting a first angle value from the azimuth angle of the target sector and an azimuth angle value of the target sector and a second angle value;
the value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector;
the value range of the second angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector.
4. The determination method according to claim 1,
the true north azimuth of the base station relative to the target base station is calculated by the following formula:
m＝90-b
n＝90-y
O＝a-x
cos p＝cos m*cos n+sin m*sin n*cos O
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p
wherein θ is a true north azimuth of the base station B relative to the target base station a, m, n, and P are radians of three arcs of a spherical triangle formed by the target base station a, the base station B, and the north pole P, respectively, x is a longitude of the target base station a, y is a latitude of the target base station a, a is a longitude of the base station B, B is a latitude of the base station B, and O is a dihedral angle of a plane formed by the target base station a, the geocenter, and the north pole P and a plane formed by the base station B, the geocenter, and the north pole P.
5. The determination method according to claim 1,
the distance between the base station and the target base station is calculated by adopting the following formula:
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]}
wherein, L is the distance from the target base station A to the base station B, x is the longitude of the target base station A, y is the latitude of the target base station A, a is the longitude of the base station B, B is the latitude of the base station B, and R is the radius of the earth.
6. The determination method according to any one of claims 1 to 5, further comprising:
acquiring at least one service quality index of each sector from a comprehensive network management system;
determining the service quality of each sector according to the service quality index of each sector;
and selecting a sector with the service quality lower than a threshold value as a target sector, and taking a base station corresponding to the target sector as a target base station.
7. The determination method according to claim 6, wherein the determining the quality of service of each sector according to the quality of service indicator of each sector comprises:
weighting and summing the service quality indexes to serve as a basic score of the sector;
determining the average value and the standard deviation of the basic scores of all the sectors in the same preset area;
and taking the ratio of the difference value of the base score minus the average value of the sector to the standard deviation as the service quality of the sector.
8. An associated sector determination apparatus, comprising:
the alternative associated base station determining module is used for taking a base station of which the true north azimuth angle relative to the target base station is within a preset range as an alternative associated base station;
the associated base station determining module is used for determining an associated base station from alternative associated base stations according to the distance between the alternative associated base stations and the target base station;
an associated sector determining module, configured to determine, according to a true north azimuth of the associated base station relative to the target base station and an azimuth of each sector corresponding to the associated base station, at least one sector corresponding to the associated base station as an associated sector;
the associated sector determining module is configured to calculate an angle difference between an azimuth of each sector corresponding to the associated base station and a true north azimuth of the associated base station relative to the target base station, and select a sector with a corresponding angle difference lower than an angle threshold as the associated sector.
9. The determination apparatus according to claim 8,
the preset range is determined according to the azimuth angle of a target sector corresponding to the target base station, the range angle of the target sector and the antenna half-power angle of the target sector.
10. The determination apparatus according to claim 9,
the preset range is the sum of an angle value obtained by subtracting a first angle value from the azimuth angle of the target sector and an azimuth angle value of the target sector and a second angle value;
the value range of the first angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector;
the value range of the second angle value is from one half of the antenna half-power angle to one half of the range angle of the target sector.
11. The determination apparatus according to claim 8,
the true north azimuth of the base station relative to the target base station is calculated by the following formula:
m＝90-b
n＝90-y
O＝a-x
cos p＝cos m*cos n+sin m*sin n*cos O
θ＝cos-1(cos m-cos n*cos p)/sin n*sin p
wherein θ is a true north azimuth of the base station B relative to the target base station a, m, n, and P are radians of three arcs of a spherical triangle formed by the target base station a, the base station B, and the north pole P, respectively, x is a longitude of the target base station a, y is a latitude of the target base station a, a is a longitude of the base station B, B is a latitude of the base station B, and O is a dihedral angle of a plane formed by the target base station a, the geocenter, and the north pole P and a plane formed by the base station B, the geocenter, and the north pole P.
12. The determination apparatus according to claim 8,
the distance between the base station and the target base station is calculated by adopting the following formula:
L＝R*{cos-1[cos b*cos y*cos(a-x)+sin b*sin y]}
wherein, L is the distance from the target base station A to the base station B, x is the longitude of the target base station A, y is the latitude of the target base station A, a is the longitude of the base station B, B is the latitude of the base station B, and R is the radius of the earth.
13. The determination apparatus according to any one of claims 8-12, further comprising:
and the target sector determining module is used for acquiring at least one service quality index of each sector from the comprehensive network management system, determining the service quality of each sector according to the service quality index of each sector, selecting the sector with the service quality lower than a threshold value as a target sector, and taking a base station corresponding to the target sector as a target base station.
14. The determination apparatus according to claim 13,
the target sector determining module is used for weighting and summing the service quality indexes to serve as a basic score of the sector, determining an average value and a standard deviation of the basic scores of all sectors in the same preset area, and taking a ratio of a difference value obtained by subtracting the average value from the basic score of the sector to the standard deviation as the service quality of the sector.
15. An associated sector determination apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of determining an associated sector of any of claims 1-7 based on instructions stored in the memory device.
16. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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| CN104735705A (en) * | 2013-12-23 | 2015-06-24 | 中国移动通信集团上海有限公司 | Base station coverage and basic data inspection method and device |
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