CN104363614B - A kind of abnormal detection method and device of the coverage direction of cell - Google Patents

Abstract

Embodiments of the present invention provide a method and device for detecting an abnormal coverage direction of a cell, which relate to the communication field and can improve the accuracy of detecting an abnormal coverage direction of a cell and save manpower and material resources. The method includes: according to the network engineering parameters, determining the angle between the direction of each neighboring cell relative to the own cell and the horizontal direction angle of each neighboring cell; The included angle of the direction angle is to determine the back-to-neighboring area of the cell from each adjacent area, and the planned coverage area of the back-to-neighboring area and this cell does not overlap; calculate the judgment ratio of the back-to-adjacent area, and the judgment ratio is used for Characterizes the degree of deviation of the coverage direction of the cell; if the judgment ratio is greater than or equal to a preset ratio threshold, it is determined that the coverage direction of the cell is abnormal. The method is applied in the scene of cell coverage detection.

Description

Method and device for detecting abnormal coverage direction of a cell

technical field

The present invention relates to the field of communications, in particular to a method and device for detecting an abnormal coverage direction of a cell.

Background technique

With the continuous development of network technology, the coverage area of the network is becoming wider and wider. When the coverage direction of a certain cell in the network is abnormal, the communication quality of the communication link in the cell may decrease, and the cell interferes with the coverage quality of neighboring cells. The abnormal coverage direction of the cell may include: the target coverage area of the cell (the theoretical coverage area of the cell in network planning, also called the planned coverage area) is not completely covered by the cell, resulting in weak or no coverage in the target coverage area of the cell. Coverage phenomenon: the actual coverage area of a cell has been covered by other cells, and the cell interferes with the coverage quality of other cells.

At present, it is generally evaluated whether the coverage direction (actual coverage direction) of the cell is abnormal through a manual drive test method. Specifically, the staff can select multiple sampling points within the target coverage area of the cell and/or around the surrounding area of the base station providing service for the cell, and sample the quality data of the cell at the multiple sampling points (for example, the quality data of the cell The signal gain of the cell or the pilot scrambling code of the cell, etc.) and the direction of the sampling point relative to the cell to evaluate the coverage of the cell, so as to detect whether the coverage direction of the cell is abnormal according to the coverage of the cell.

However, the above-mentioned method of detecting whether the coverage direction of the cell is abnormal by manual drive test, on the one hand, due to the limited number of selected sampling points, the quality data of the sampled cell is not accurate enough, which leads to the accuracy rate of detecting the abnormal coverage direction of the cell. On the other hand, due to the wide coverage of the network, it will consume a lot of manpower and material resources if the whole network is checked.

Contents of the invention

Embodiments of the present invention provide a method and device for detecting an abnormal coverage direction of a cell, which can improve the accuracy of detecting an abnormal coverage direction of a cell and save manpower and material resources.

To achieve the above object, the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a method for detecting an abnormal coverage direction of a cell, including:

According to the network engineering parameters, determine the included angle between each neighboring cell of the local cell relative to the direction of the local cell and the horizontal direction angle of each neighboring cell;

According to the angle between the direction of each neighboring cell relative to the local cell and the horizontal direction angle of each neighboring cell, determine the neighboring cell facing away from the current cell from the neighboring cells, and the facing away from The planned coverage area where the adjacent cell does not overlap with the said own cell;

calculating the judgment ratio of the back-facing adjacent cell, the judgment ratio being used to characterize the degree of deviation of the coverage direction of the cell;

If the determination ratio is greater than or equal to a preset ratio threshold, it is determined that the coverage direction of the local cell is abnormal.

In a first possible implementation manner of the first aspect, the determination ratio is the ratio of the number of the back-facing neighboring cells in each of the neighboring cells,

The calculation of the judgment ratio of the back-facing adjacent cell; if the judgment ratio is greater than or equal to the ratio threshold value, then determining that the coverage direction of the cell is abnormal, including:

Calculating the quantity ratio according to the quantity of the back-facing neighbors and the total quantity of the respective neighbors;

If the number ratio is greater than or equal to the ratio threshold, it is determined that the coverage direction of the local cell is abnormal.

In the second possible implementation of the first aspect, the judgment ratio is the handover ratio of the current cell requesting handover to the backward neighboring cell,

The calculation of the judgment ratio of the back-facing adjacent cell; if the judgment ratio is greater than or equal to the ratio threshold value, then determining that the coverage direction of the cell is abnormal, including:

calculating the handover ratio according to the number of handovers requested by the own cell to the backward neighboring cell and the total number of handovers requested by the own cell to each neighboring cell;

If the handover ratio is greater than or equal to the ratio threshold, it is determined that the coverage direction of the local cell is abnormal.

Combining the first aspect or any one of the first possible implementation manner to the second possible implementation manner of the first aspect, in a third possible implementation manner,

The planned coverage area that does not overlap between the back-facing neighbor cell and the cell includes:

In the first quadrant, the planned coverage area where the left lobe facing away from the adjacent cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell;

In the second quadrant, the right lobe facing away from the adjacent cell does not overlap the planned coverage area with the left lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell;

In the third quadrant, the right lobe facing away from the adjacent cell does not overlap the planned coverage area with the left lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell;

In the fourth quadrant, the left lobe facing away from the adjacent cell does not overlap the planned coverage area with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell.

Combining the first aspect or any one of the first possible implementation manner to the second possible implementation manner of the first aspect, in a fourth possible implementation manner,

The planned coverage area that does not overlap between the back-facing neighbor cell and the cell includes:

The direction of the facing away neighbor cell relative to the current cell is greater than or equal to a preset first threshold value; and

The included angle of the horizontal direction angle facing away from the adjacent cell is greater than or equal to a preset second threshold value.

In a second aspect, the present invention provides a device for detecting an abnormal coverage direction of a cell, including:

The determining unit is configured to determine the included angle between the direction of each neighboring cell of the local cell relative to the direction of the local cell and the horizontal direction angle of each neighboring cell according to network engineering parameters, and determine the angle between the direction of each neighboring cell relative to the The angle between the direction of the local cell and the horizontal direction angle of each neighboring cell is determined from the respective neighboring cells to determine the back-facing neighboring cell of the local cell, and the back-facing neighboring cell does not overlap with the local cell planning coverage area;

a calculation unit, configured to calculate the determination ratio of the back-facing adjacent cell determined by the determination unit, and the determination ratio is used to represent the degree of deviation of the coverage direction of the local cell;

The determination unit is further configured to determine that the coverage direction of the local cell is abnormal if the judgment ratio calculated by the calculation unit is greater than or equal to a preset ratio threshold.

In a first possible implementation manner of the second aspect, the determination ratio calculated by the calculation unit is the ratio of the number of the facing neighbors in each of the neighbors,

The calculation unit is specifically configured to calculate the number ratio according to the number of the back-facing neighbors and the total number of the respective neighbors;

The determination unit is specifically configured to determine that the coverage direction of the current cell is abnormal if the number ratio calculated by the calculation unit is greater than or equal to the ratio threshold value.

In a second possible implementation manner of the second aspect, the judgment ratio calculated by the calculation unit is a handover ratio of the own cell requesting handover to the backward neighboring cell,

The calculation unit is specifically configured to calculate the handover ratio according to the number of handovers requested by the own cell to the backward neighboring cell and the total number of handovers requested by the own cell to each neighboring cell;

The determination unit is specifically configured to determine that the coverage direction of the current cell is abnormal if the handover ratio calculated by the calculation unit is greater than or equal to the ratio threshold.

Combining the second aspect or any one of the first possible implementation manner to the second possible implementation manner of the second aspect, in the third possible implementation manner,

The planned coverage area that does not overlap between the back-facing neighbor cell and the cell includes:

In the first quadrant, the planned coverage area where the left lobe of the facing away neighbor cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the neighboring cell,

In the second quadrant, the planned coverage area where the right lobe facing away from the adjacent cell does not overlap with the left lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell,

In the third quadrant, the planned coverage area where the right lobe facing away from the adjacent cell does not overlap with the left lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell,

In the fourth quadrant, the left lobe facing away from the adjacent cell does not overlap the planned coverage area with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell.

Combining the second aspect or any of the first possible implementation manner to the second possible implementation manner of the second aspect, in a fourth possible implementation manner,

The planned coverage area that does not overlap between the back-facing neighbor cell and the cell includes:

The direction of the facing away neighbor cell relative to the current cell is greater than or equal to a preset first threshold value; and

The included angle of the horizontal direction angle facing away from the adjacent cell is greater than or equal to a preset second threshold value.

The present invention provides a method and device for detecting abnormal coverage direction of a cell, since the direction (actual direction) of each adjacent cell of the cell relative to the cell and the horizontal direction angle of each adjacent cell can be determined according to actual network engineering parameters According to the angle between the direction of each adjacent area relative to this area and the angle of the horizontal direction angle of each adjacent area, determine the back-to-neighboring area of this area, and evaluate the proportion of this area by calculating the judgment ratio of facing away from the adjacent area. Coverage direction (actual coverage direction), so when the judgment ratio of facing away from the neighboring cell (representing the degree of deviation of the actual coverage direction of the cell) is greater than or equal to the ratio threshold value, it can be determined that the coverage direction of the cell is abnormal. Compared with the prior art, the present invention detects the abnormality of the coverage direction of the cell through the actual data of the cell and each neighboring cell of the cell, can improve the accuracy of detecting the abnormal coverage direction of the cell, and save manpower and material resources.

Description of drawings

FIG. 1 is a flowchart of a method for detecting an abnormal coverage direction of a cell provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of coverage of a cell provided by an embodiment of the present invention;

FIG. 3 is a flow chart of a method for detecting an abnormal coverage direction of a cell provided by an embodiment of the present invention;

FIG. 4 is a flow chart of a method for detecting an abnormal coverage direction of a cell provided by an embodiment of the present invention;

FIG. 5 is a flow chart of a method for detecting an abnormal coverage direction of a cell provided by an embodiment of the present invention;

FIG. 6 is a flowchart of a method for detecting an abnormal coverage direction of a cell according to an embodiment of the present invention;

FIG. 7 is a flowchart of a method for detecting an abnormal coverage direction of a cell according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a network coverage detection result provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a device for detecting an abnormal coverage direction of a cell according to an embodiment of the present invention;

Fig. 10 is a schematic diagram of the hardware of the controller provided by the embodiment of the present invention.

detailed description

A method and device for detecting an abnormal coverage direction of a cell provided by an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

The method for detecting the abnormal coverage direction of the cell provided by the embodiment of the present invention can be applied to network optimization. Through the method for detecting the abnormal coverage direction of the cell provided by the embodiment of the present invention, the cell with the abnormal coverage direction can be detected, and combined with the cell The actual coverage direction and the signal quality of the cell can be used to determine the places with poor network coverage and the reasons for poor network coverage, so that the coverage resources of places with poor network coverage can be reasonably allocated according to the reasons for poor network coverage, and then the network can be optimized. Coverage, improve resource utilization.

The execution subject of the method for detecting abnormal coverage direction of a cell provided in the embodiment of the present invention may be a device for detecting abnormal coverage direction of a cell. The detection device may be a controller, and the controller may be a control unit integrated in a base station, or It may be a control unit independent from the base station, which is not limited in the present invention.

Embodiment one

An embodiment of the present invention provides a method for detecting an abnormal coverage direction of a cell. As shown in FIG. 1 , the method may include:

S101. The controller determines, according to network engineering parameters, the angles between the direction of each neighboring cell of the local cell and the horizontal direction angle of each neighboring cell relative to the local cell.

Wherein, the network engineering parameters are set in the controller according to the actual location information of each cell in the network during the network networking process. Specifically, in the implementation of the present invention, the network engineering parameters can at least include the latitude and longitude of each cell in the network (including the longitude of each cell in the network and the latitude of each cell in the network), the horizontal direction angle of the cell, and the horizontal direction angle of the cell. The horizontal direction angle of each neighbor.

Furthermore, in the embodiment of the present invention, the local cell and each neighboring cell of the local cell may be served by the same base station, or may be provided by different base stations, which is not limited in the present invention.

In this embodiment of the present invention, since the meanings of the directions of each neighboring cell of this cell relative to this cell are the same, in order to clearly indicate the direction of each neighboring cell of this cell relative to this cell, the embodiment of the present invention takes the direction of this cell as A neighboring cell is taken as an example, and an exemplary description is made with reference to FIG. 2 .

Further, since the included angles of the horizontal direction angles of the adjacent cells of the current cell have the same meaning, in order to better describe the included angles of the horizontal direction angles of the adjacent cells of the current cell, the embodiment of the present invention takes the Take a neighboring cell of , as an example, and make an exemplary description with reference to FIG. 2 .

In the coordinate schematic diagram shown in Figure 2(a)-2(d), assuming that the cell is located in the two-dimensional coordinates formed by the X axis and the Y axis, the cell is marked as O, and the coverage area of the cell is marked as AOB. The main coverage direction of the cell is recorded as the ray OY direction; a neighboring cell of this cell is located in the two-dimensional coordinate formed by the X1 axis and the Y1 axis, and the adjacent cell is recorded as D, and the coverage area of the adjacent cell is recorded as CDE, and the adjacent cell The main coverage direction of is denoted as the ray DF direction. Then the direction of the adjacent cell relative to the cell can be expressed as ∠DOY; the angle between the horizontal direction angle of the adjacent cell is the main coverage direction (ray DF direction) of the adjacent cell and the main coverage direction (ray OY direction) of the cell. , can also be expressed as the angle between the rays DY1 direction), which can be expressed as ∠FDY1. Among them, the X axis can represent the longitude of the local area, and the Y axis can represent the latitude of the local area; the X1 axis can represent the longitude of the adjacent area, and the Y1 axis can indicate the latitude of the adjacent area; the included angle of the horizontal direction angle of the adjacent area ∠FDY1 may be the difference between the horizontal direction angle of the neighboring cell and the horizontal direction angle of the current cell.

S102. The controller determines the back-facing neighboring cell of the local cell from each neighboring cell according to the included angle between the direction of each neighboring cell relative to the own cell and the horizontal direction angle of each adjacent cell, and the back-facing adjacent cell and the local cell Cells have no overlapping planned coverage areas.

It should be noted that, in the embodiment of the present invention, the back-facing adjacent cell of the current cell is the adjacent cell of the planned coverage area that does not overlap with the current cell among the adjacent cells of the current cell. For example, in Figure 2(a)-2(d), cell D is a neighboring cell of the own cell O, and the planned coverage area of the adjacent cell D and the own cell O has no overlap, then the neighboring cell D is the back of the own cell O. to the neighborhood. Specifically, the specific description of the planned coverage area that faces away from the adjacent cell and does not overlap with the current cell will be described in detail in the following embodiments.

In particular, the planned coverage area of the above-mentioned neighboring cell D that does not overlap with the own cell O can be understood as: the planned coverage area of the neighboring cell D is not in the planned coverage area of the own cell O, and the planned coverage area of the own cell O is not in the neighboring cell D's planned coverage area. The planned coverage area in the embodiment of the present invention can be understood as the coverage area planned for each cell in the network during the network networking process (also can be understood as the theoretical coverage area designed for each cell in the network).

S103. The controller calculates a judgment ratio of the back-to-neighboring cell, and the judgment ratio is used to represent a degree of deviation of the coverage direction of the own cell.

After the controller determines the back-facing neighbor cell of the cell from the neighbor cells of the cell, the controller can calculate the judgment ratio of the back-facing neighbor cell, wherein the judgment ratio can be used to represent the degree of deviation of the coverage direction of the cell .

It should be noted that the coverage direction of the cell mentioned in the embodiments of the present invention refers to the actual coverage direction of the cell.

Optionally, the above-mentioned judging ratio may be the number ratio of the back-facing neighboring cells of the current cell among the neighboring cells of the current cell; it may also be the handover ratio of the current cell requesting handover to the backward-facing neighboring cells of the current cell. Specifically, the method for the controller to calculate the quantity ratio and the switching ratio will be described in detail in the following embodiments.

S104. If the judgment ratio is greater than or equal to a preset ratio threshold, the controller determines that the coverage direction of the local cell is abnormal.

In the embodiment of the present invention, the abnormality of the coverage direction of the cell may include: the planned coverage area of the cell (also referred to as the target coverage area of the cell) is not completely covered by the cell, resulting in weak coverage in the planned coverage area of the cell Or there is no coverage; the actual coverage area of this cell has been covered by other cells, and this cell interferes with the coverage quality of other cells.

After the controller calculates the judging ratio of the back-to-adjacent cell of the cell, the controller can compare the judging ratio with a preset ratio threshold value, and if the judging ratio is greater than or equal to the ratio threshold value, the controller can determine The coverage direction of this cell is abnormal. On the contrary, if the judgment ratio is smaller than the ratio threshold, the controller may determine that the coverage direction of the cell is normal.

The embodiment of the present invention provides a method for detecting the abnormality of the coverage direction of a cell. Through this solution, the direction (actual direction) of each neighboring cell of the cell relative to the cell and the direction of each adjacent cell can be determined according to actual network engineering parameters. The angle of the horizontal direction angle, and according to the angle between the direction of each adjacent area relative to the direction of the own area and the angle of the horizontal direction angle of each adjacent area, determine the back-to-adjacent area of the area, and by calculating the judgment ratio of the back-to-adjacent area, Assess the coverage direction (actual coverage direction) of the cell, so when the judgment ratio of facing away from the neighboring cell (representing the degree of deviation of the actual coverage direction of the cell) is greater than or equal to the ratio threshold value, it can be determined that the coverage direction of the cell is abnormal. Compared with the prior art, the present invention detects the abnormality of the coverage direction of the cell through the actual data of the cell and each neighboring cell of the cell, can improve the accuracy of detecting the abnormal coverage direction of the cell, and save manpower and material resources.

Embodiment two

An embodiment of the present invention provides a method for detecting an abnormal coverage direction of a cell. As shown in FIG. 3 , the method may include:

S201. The controller determines each neighbor cell of the cell according to the neighbor cell relationship data of the cell.

Wherein, the neighboring cell relationship data is set in the controller according to the neighboring cell information of each cell in the network during the network networking process. When the neighbor cell information of the current cell changes, the controller can also update the neighbor cell relationship data. Specifically, the controller may instruct the base station serving the cell to report the changed neighbor cell information, and update the neighbor cell relationship data according to the changed neighbor cell information.

In the embodiment of the present invention, the neighboring cell relationship data may include identifiers of each neighboring cell of the cell. The controller can determine the neighboring cells of the cell according to the identifiers of the neighboring cells of the cell.

S202. The controller determines, according to the network engineering parameters, the angles between the direction of each neighboring cell of the local cell relative to the local cell and the horizontal direction angle of each neighboring cell.

The controller determines the included angle between the direction of each neighboring cell of the local cell relative to the direction of the local cell and the horizontal direction angle of each neighboring cell according to the network engineering parameters.

Wherein, the network engineering parameters are set in the controller according to the actual location information of each cell in the network during the network networking process. Specifically, in the embodiment of the present invention, the network engineering parameters may at least include the latitude and longitude of each cell in the network (including the longitude of each cell in the network and the latitude of each cell in the network), the horizontal direction angle of the cell, and the The horizontal direction angle of each neighboring area of .

Furthermore, in the embodiment of the present invention, the local cell and each neighboring cell of the local cell may be served by the same base station, or may be provided by different base stations, which is not limited in the present invention.

In this embodiment of the present invention, since the meanings of the directions of each neighboring cell of this cell relative to this cell are the same, in order to clearly indicate the direction of each neighboring cell of this cell relative to this cell, the embodiment of the present invention takes the direction of this cell as A neighboring cell is taken as an example, and an exemplary description is made with reference to FIG. 2 .

Further, since the included angles of the horizontal direction angles of the adjacent cells of the current cell have the same meaning, in order to better describe the included angles of the horizontal direction angles of the adjacent cells of the current cell, the embodiment of the present invention takes the Take a neighboring cell of , as an example, and make an exemplary description with reference to FIG. 2 .

In the coordinate schematic diagram shown in Figure 2(a)-2(d), assuming that the cell is located in the two-dimensional coordinates formed by the X axis and the Y axis, the cell is marked as O, and the coverage area of the cell is marked as AOB. The main coverage direction of the cell is recorded as the ray OY direction; a neighboring cell of this cell is located in the two-dimensional coordinate formed by the X1 axis and the Y1 axis, and the adjacent cell is recorded as D, and the coverage area of the adjacent cell is recorded as CDE, and the adjacent cell The main coverage direction of is denoted as the ray DF direction. Then the direction of the adjacent cell relative to the local cell can be expressed as ∠DOY; the angle between the horizontal direction angle of the adjacent cell is the main coverage direction (ray DF direction) of the adjacent cell and the main coverage direction (ray OY direction) of this cell , can also be expressed as the angle between the rays DY1 direction), which can be expressed as ∠FDY1. Among them, the X axis can represent the longitude of the local area, and the Y axis can represent the latitude of the local area; the X1 axis can represent the longitude of the adjacent area, and the Y1 axis can indicate the latitude of the adjacent area; the included angle of the horizontal direction angle of the adjacent area ∠FDY1 may be the difference between the horizontal direction angle of the neighboring cell and the horizontal direction angle of the current cell.

Exemplarily, taking the first quadrant as an example, assuming that this cell is cell i, each neighboring cell of this cell is cell j (j=1,2,...,k), and each neighboring cell determined by the controller is relative to this cell The direction of is θ _i,j . If the longitude of cell j is l _j and the latitude is a _j , the direction of cell j determined by the controller relative to the cell

Further, for the second and third quadrants, the direction of the cell j determined by the controller relative to the cell

For the fourth quadrant, the direction of the cell j determined by the controller relative to the cell

S203. The controller determines, from each neighboring cell, the back-facing neighboring cell of the own cell according to the direction of each neighboring cell relative to the own cell, and the planned coverage area of the back-facing neighboring cell and the own cell does not overlap.

It should be noted that, in the embodiment of the present invention, the back-facing adjacent cell of the current cell is the adjacent cell of the planned coverage area that does not overlap with the current cell among the adjacent cells of the current cell. For example, in Figure 2, cell D is a neighboring cell of the own cell O, and the planned coverage area of the neighboring cell D and the own cell O has no overlap, then the neighboring cell D is the facing away neighbor cell of the own cell O.

In particular, the planned coverage area of the above-mentioned neighboring cell D that does not overlap with the own cell O can be understood as: the planned coverage area of the neighboring cell D is not in the planned coverage area of the own cell O, and the planned coverage area of the own cell O is not in the neighboring cell D's planned coverage area. The planned coverage area in the embodiment of the present invention can be understood as the coverage area planned for each cell in the network during the network networking process (also can be understood as the theoretical coverage area designed for each cell in the network).

Specifically, the controller determines from the neighboring cells of the own cell that the neighboring cells of the planned coverage area that do not overlap with the own cell are the back-facing neighboring cells of the own cell (hereinafter referred to as the back-facing neighboring cells).

Optionally, the planned coverage area of the back-to-back neighbor cell and the cell does not overlap, that is, the condition that the back-to-back neighbor cell satisfies can be expressed as one of the following:

(1) In the first quadrant, the planned coverage area where the left lobe facing away from the adjacent cell does not overlap with the right lobe of the cell, and the cell is not within the planned coverage area facing away from the adjacent cell;

(2) In the second quadrant, the planned coverage area where the right lobe facing away from the adjacent cell does not overlap with the left lobe of the cell, and the cell is not within the planned coverage area facing away from the adjacent cell;

(3) In the third quadrant, the planned coverage area where the right lobe facing away from the adjacent cell does not overlap with the left lobe of the cell, and the cell is not within the planned coverage area facing away from the adjacent cell;

(4) In the fourth quadrant, the planned coverage area where the left lobe facing away from the adjacent cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell.

For example, as shown in FIG. 2 , it is a schematic diagram of coverage of the above (1)-(4). The following will take FIG. 2 as an example to describe the above (1)-(4) in detail.

As shown in Figure 2(a), corresponding to the above (1), in the first quadrant, the left lobe EDF facing away from the neighboring cell D and the right lobe BOY of the own cell O have no overlapping planned coverage area, and the own cell O is not in The planned coverage area CDE facing away from the neighboring cell D is inside.

As shown in Figure 2(b), corresponding to the above (2), in the second quadrant, the right lobe EDF facing away from the neighboring cell D and the left lobe AOY of the own cell O have no overlapping planned coverage area, and the own cell O is not in The planned coverage area CDE facing away from the neighboring cell D is inside.

As shown in Figure 2(c), corresponding to the above (3), in the third quadrant, the right lobe CDF facing away from the neighboring cell D and the left lobe AOY of the own cell O have no overlapping planned coverage area, and the own cell O is not in The planned coverage area CDE facing away from the neighboring cell D is inside.

As shown in Figure 2(d), corresponding to the above (4), in the fourth quadrant, the left lobe CDF facing away from the neighboring cell D and the right lobe BOY of the own cell O have no overlapping planned coverage area, and the own cell O is not in The planned coverage area CDE facing away from the neighboring cell D is inside.

Exemplarily, as shown in Figure 2(a)-2(d), assume that the half-power angle (∠AOB) of the own cell O is 2△, and the direction ∠DOY of the neighbor cell D facing away from the own cell O is θ , considering the error existing in the actual network, add a protection lobe, and set the angle of the protection lobe as β, the included angle between the horizontal direction angle facing away from the adjacent area D (the horizontal direction angle facing away from the adjacent area D and The difference between the horizontal direction angle of O in this community) is ∠FDY1, then the above (1), (2), (3) and (4) can be expressed as:

(1) In the first quadrant, ∠FDY1≥2△+β, and ∠FDY1≤180°+θ-△-β;

(2) In the second quadrant, ∠FDY1≤360°-2△-β, and ∠FDY1≥θ-180°+△+β;

(3) In the third quadrant, ∠FDY1≤360°-2△-β, and ∠FDY1≥θ-180°+△+β;

(4) In the fourth quadrant, ∠FDY1≥2△+β, and ∠FDY1≤180°+θ-△-β.

Optionally, the planned coverage area of the back-facing neighbor cell that does not overlap with this cell, that is, the condition that the back-facing neighbor cell satisfies can also be expressed as:

(5) The direction facing away from the neighboring cell relative to the current cell is greater than or equal to a preset first threshold value; and the included angle of the horizontal direction angle facing away from the neighboring cell is greater than or equal to a preset second threshold value.

For example, as shown in Figure 2(a)-2(d), the direction facing away from the neighboring area relative to the own cell can be expressed as ∠DOY, and the included angle of the horizontal direction angle facing away from the adjacent area can be expressed as ∠FDY1 , assuming that the preset first threshold value is α1, and the preset second threshold value is α2, then the above (5) can be expressed as:

(5) ∠DOY≥α1, and ∠FDY1≥α2.

Exemplarily, both α1 and α2 are protection angles; α1 can be any value between 70°-90°, and α2 can also be any value between 70°-90°.

The controller, through the above conditions (1)-(5), determines from each neighboring cell of the cell that the neighboring cell satisfying any one of the above-mentioned conditions (1)-(5) is the back-facing neighboring cell of the cell.

S204. The controller calculates the proportion of the number of the backward neighboring cells in each neighboring cell according to the number of the facing away neighboring cells and the total number of each neighboring cell.

Wherein, the above-mentioned number ratio may be used to represent the degree of deviation of the coverage direction of the current cell.

Exemplarily, assuming that the total number of neighbors of the cell counted by the controller is M, and the number of neighbors facing away from the cell determined by the controller is N, the above ratio of numbers

Optionally, the above-mentioned total number of each neighboring cell of the current cell may also be collected by the base station and sent to the controller.

S205. If the number ratio is greater than or equal to a preset ratio threshold value, the controller determines that the coverage direction of the local cell is abnormal.

Assuming that the preset ratio threshold is _ηthreshold1 , if the _{number of η≥ηthreshold1} , the controller determines that the coverage direction of the cell is abnormal.

It should be noted that the coverage direction of the cell mentioned in the embodiments of the present invention refers to the actual coverage direction of the cell.

In the embodiment of the present invention, the abnormality of the coverage direction of the cell may include: the planned coverage area of the cell (also referred to as the target coverage area of the cell) is not completely covered by the cell, resulting in weak coverage in the planned coverage area of the cell Or there is no coverage; the actual coverage area of this cell has been covered by other cells, and this cell interferes with the coverage quality of other cells.

Further, as shown in FIG. 4, the method for detecting an abnormal coverage direction of a cell provided in the embodiment of the present invention may further include:

S206. If the number ratio is smaller than the ratio threshold, the controller determines that the coverage direction of the local cell is normal.

Assuming that the preset ratio threshold value is _ηthreshold1 , if _ηnumber < _ηthreshold1 , the controller determines that the coverage direction of the cell is normal.

After the controller calculates the number ratio of the back-facing neighboring cells in each neighboring cell, the controller can compare the number ratio with a preset ratio threshold value, and if the number ratio is greater than or equal to the ratio threshold value, then The controller can determine that the coverage direction of the cell is abnormal. On the contrary, if the number ratio is smaller than the ratio threshold value, the controller may determine that the coverage direction of the cell is normal.

It should be noted that after the network is established, as the network coverage gradually expands, the neighbors of the cell planned in the network may change. For example, when the neighbors of the cell are based on the network When increasing, the coverage direction planned for this cell may be abnormal during network networking. At this time, you can use the method of S201-S206 shown in Figure 4 above to conveniently detect whether the coverage direction of this cell is abnormal. When the coverage direction of this cell When the direction is abnormal, the coverage direction of the local cell may be adjusted so that the adjusted coverage direction of the local cell is normal.

The above-mentioned method of detecting the abnormal coverage direction of the own cell by the number ratio of the back-to-back neighbors can, after determining the back-to-back neighbors of the own cell, simply estimate the proportion of the back-to-back neighbors in each neighbor of the cell Ratio, conveniently detect whether the coverage direction of the cell is abnormal.

Optionally, as shown in FIG. 5, S204 and S205 shown in FIG. 3 above may also be:

S204a. The controller calculates the handover ratio of the own cell requesting handover to the backward neighboring cell according to the number of handover requests from the own cell to the backward neighboring cell and the total number of handover requests from the own cell to each neighboring cell.

S205a. If the handover ratio is greater than or equal to a preset ratio threshold, the controller determines that the coverage direction of the cell is abnormal.

Wherein, the number of handovers requested by the cell to each neighboring cell may be counted by the controller, or may be sent to the controller after being counted by the base station. After the controller obtains the number of handovers requested by the cell to each adjacent cell, the controller can calculate the total number of handovers requested by the cell to each adjacent cell according to the number of handovers requested by the cell to each adjacent cell, and calculate the total number of handovers requested by the cell to each adjacent cell The number of handovers requested by the cell to the backward neighboring cell of the own cell and the total number of handovers, and the handover ratio of the handover requested by the own cell to the backward neighboring cell are calculated.

Further, the above handover ratio may be used to characterize the degree of deviation of the coverage direction of the current cell.

As shown in Figure 6, S204-S206 as shown in Figure 4 above can also be:

S204a. The controller calculates the handover ratio of the own cell requesting handover to the backward neighboring cell according to the number of handover requests from the own cell to the backward neighboring cell and the total number of handover requests from the own cell to each neighboring cell.

S205a. If the handover ratio is greater than or equal to a preset ratio threshold, the controller determines that the coverage direction of the cell is abnormal.

For the description of S204a and S205a above, reference may be made to the description of S204a and S205a shown in FIG. 5 , which will not be repeated here.

S206a. If the handover ratio is smaller than the ratio threshold, the controller determines that the coverage direction of the cell is normal.

After the controller calculates the handover ratio of this cell requesting handover to the back neighbor cell, the controller can compare the handover ratio with the preset ratio threshold value, and if the handover ratio is greater than or equal to the ratio threshold value, control The device can determine that the coverage direction of the cell is abnormal. On the contrary, if the handover ratio is smaller than the ratio threshold, the controller may determine that the coverage direction of the cell is normal.

It should be noted that the proportional threshold value in S204-S206 and the proportional threshold value in S204a-S206a may be different threshold values. Specifically, the proportional threshold value in S204-S206 may be a quantity proportional threshold value; the proportional threshold value in S204a-S206a may be a switching proportional threshold value.

Specifically, as shown in FIG. 7, the above S204a shown in FIG. 6 may specifically include:

S204a1. The controller calculates the total number of handover requests from the own cell to each neighboring cell according to the number of handover requests from the own cell to each neighboring cell.

S204a2. The controller calculates the handover ratio of the cell requesting handover to the backward neighboring cell according to the number of handover requests from the own cell to the backward neighboring cell and the total number of handover times.

For example, assuming that the current cell is cell i, and each neighboring cell of this cell is cell j (j=1,2,...,k), the number of handover requests from this cell to each neighboring cell within a certain period of time is counted by the controller is γ _i,j , then the controller calculates the total number of handovers requested by the cell to each neighboring cell Wherein, the period of time can be set according to the actual situation, and the present invention does not limit it.

Assuming that the backward neighboring cell of this cell is cell h among the k neighboring cells of this cell, the number of handovers requested by this cell to this backward neighboring cell is γ _i,h , and the number of handovers from this cell calculated by the controller to this The handover ratio of requesting handover to neighboring cells

Assume that the preset proportional threshold is η _{threshold 2} , if η _i,j ≥ η _{threshold 2} , the controller determines that the coverage direction of the cell is abnormal; on the contrary, if η _i,j <η _{threshold 2} , the controller determines The coverage direction of this cell is normal.

Further, when the controller determines that there are p back-facing neighboring cells of the current cell, assuming that the value of h is h=1, 2,...,p, the handover ratio of the current cell requesting handover to the p back-facing neighboring cells

At this time, assuming that the preset ratio threshold value is η _{threshold 2} , if η _switching ≥ η _{threshold 2} , the controller determines that the coverage direction of the cell is abnormal; on the contrary, if η _switching < η _{threshold 2} , the controller determines that the local The coverage direction of the cell is normal.

In the embodiment of the present invention, after the controller detects that the coverage direction of the local cell is abnormal, the coverage direction of the local cell may be adjusted so that the adjusted coverage direction of the local cell is normal.

The above-mentioned method for detecting the abnormal coverage direction of the own cell by the handover ratio of the own cell to the reverse neighbor cell request handover, due to the estimation of the handover ratio of the own cell to the back-to-back adjacent cell request handover by the handover data of each adjacent cell request handover by the own cell, In this way, it is detected whether the coverage direction of the own cell is abnormal. Therefore, on the basis of detecting whether the coverage direction of the own cell is abnormal through the proportion of the number facing away from neighboring cells, the detection accuracy can be further improved.

In practical application, assuming the angle β=45° of the protection lobe, and the η _{threshold 2} =80%, by adopting the abnormal detection method of the coverage direction of the cell provided by the embodiment of the present invention, the network coverage of the AAA city is detected, and the detection There are 147 cells with abnormal coverage directions. As shown in Figure 8, these cells with abnormal coverage directions are mainly distributed in rural areas, residential areas, and ordinary roads. Among the 147 cells, 30 cells were randomly selected for actual survey, and it was found that the coverage direction of 27 cells in the 30 cells was abnormal. It can be seen that the method for detecting an abnormal coverage direction of a cell provided in the embodiment of the present invention can accurately detect whether the coverage direction of a cell is abnormal.

The embodiment of the present invention provides a method for detecting the abnormality of the coverage direction of a cell. Through this solution, the direction (actual direction) of each neighboring cell of the cell relative to the cell and the direction of each adjacent cell can be determined according to actual network engineering parameters. The angle of the horizontal direction angle, and according to the angle between the direction of each adjacent area relative to the direction of the own area and the angle of the horizontal direction angle of each adjacent area, determine the back-to-adjacent area of the area, and by calculating the judgment ratio of the back-to-adjacent area, Assess the coverage direction (actual coverage direction) of the cell, so when the judgment ratio of facing away from the neighboring cell (representing the degree of deviation of the actual coverage direction of the cell) is greater than or equal to the ratio threshold value, it can be determined that the coverage direction of the cell is abnormal. Compared with the prior art, the present invention detects the abnormality of the coverage direction of the cell through the actual data of the cell and each neighboring cell of the cell, can improve the accuracy of detecting the abnormal coverage direction of the cell, and save manpower and material resources.

Embodiment three

As shown in FIG. 9, an embodiment of the present invention provides a detection device for an abnormal coverage direction of a cell. The detection device may include:

The determining unit 10 is configured to determine the included angle between the direction of each neighboring cell of the own cell relative to the direction of the own cell and the horizontal direction angle of each adjacent cell according to the network engineering parameters, and determine the angle between the direction of each adjacent cell relative to the The angle between the direction of the local cell and the horizontal direction angle of each adjacent cell is determined, and the back-facing adjacent cell of the local cell is determined from the various adjacent cells, and the back-facing adjacent cell has no overlap with the local cell planned coverage area.

The calculation unit 11 is configured to calculate the judgment ratio of the back-to-neighbor cell determined by the determination unit 10, the judgment ratio is used to characterize the degree of deviation of the coverage direction of the local cell.

The determination unit 10 is further configured to determine that the coverage direction of the current cell is abnormal if the determination ratio calculated by the calculation unit 11 is greater than or equal to a preset ratio threshold.

Optionally, the judgment ratio calculated by the calculation unit 11 is the proportion of the number of the back-to-back neighbors in each of the neighbors,

The calculation unit 11 is specifically configured to calculate the quantity ratio according to the number of the back-facing neighboring cells and the total number of the respective neighboring cells; the determining unit 10 is specifically configured to calculate if the computing unit 11 If the number ratio of is greater than or equal to the ratio threshold value, it is determined that the coverage direction of the local cell is abnormal.

Optionally, the judgment ratio calculated by the calculation unit 11 is the handover ratio of the own cell requesting handover to the backward neighboring cell,

The calculation unit 11 is specifically configured to calculate the handover ratio according to the number of handovers requested by the own cell to the backward neighboring cell and the total number of handovers requested by the own cell to each neighboring cell; The determination unit 10 is specifically configured to determine that the coverage direction of the current cell is abnormal if the handover ratio calculated by the calculation unit 11 is greater than or equal to the ratio threshold.

Optionally, the planned coverage area of the facing away neighbor cell and the cell does not overlap, including:

In the first quadrant, the planned coverage area where the left lobe facing away from the adjacent cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell; in the second quadrant Quadrant, the planned coverage area where the right lobe facing away from the neighbor cell does not overlap with the left lobe of the own cell, and the cell is not in the planned coverage area facing away from the neighbor cell; in the third quadrant, the The planned coverage area where the right lobe facing away from the neighbor cell does not overlap with the left lobe of the own cell, and the cell is not in the planned coverage area facing away from the neighbor cell; in the fourth quadrant, the back face The planned coverage area where the left lobe of the neighbor cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the neighbor cell.

Optionally, the planned coverage area of the facing away neighbor cell and the cell does not overlap, including:

The direction of the facing away neighbor cell relative to the current cell is greater than or equal to a preset first threshold value; and the angle between the main coverage direction of the facing away neighbor cell and the main coverage direction of the current cell greater than or equal to the preset second threshold.

Optionally, the network engineering parameters include the latitude and longitude of the local cell and the latitude and longitude of each neighboring cell,

The determining unit 10 is specifically configured to determine the direction of each neighboring cell relative to the local cell according to the latitude and longitude of the local cell and the latitude and longitude of each neighboring cell.

The device for detecting an abnormal coverage direction of a cell provided in the embodiment of the present invention may be a controller, and the controller may specifically be a control unit integrated in the base station, or a control unit independent of the base station, which is not limited in the present invention.

An embodiment of the present invention provides a detection device for an abnormal coverage direction of a cell. The detection device can determine the direction (actual direction) of each adjacent cell of the cell relative to the cell and the horizontal direction of each adjacent cell according to actual network engineering parameters. angle, and according to the angle between the direction of each adjacent area relative to this area and the angle of the horizontal direction angle of each adjacent area, determine the back-to-adjacent area of this area, and evaluate the judgment ratio of this area by calculating the judgment ratio of facing away from the adjacent area. The coverage direction of the cell (actual coverage direction), so when the judging ratio (representing the degree of deviation of the actual coverage direction of the cell) is greater than or equal to the ratio threshold value, the detection device can determine that the coverage direction of the cell is abnormal . Compared with the prior art, the present invention detects the abnormality of the coverage direction of the cell through the actual data of the cell and each neighboring cell of the cell, can improve the accuracy of detecting the abnormal coverage direction of the cell, and save manpower and material resources.

Embodiment four

As shown in FIG. 10, an embodiment of the present invention provides a controller, which may include: a processor 20 and a memory 21, wherein the processor 20 and the memory 21 are connected through a bus 22 to complete mutual communication between.

The processor 20 may be a central processing unit (English: central processing unit, abbreviated: CPU), or a specific integrated circuit (English: application specific integrated circuit, abbreviated: ASIC), or configured to implement the implementation of the present invention example of one or more integrated circuits.

The memory 21 may include a volatile memory (English: volatile memory), such as a random-access memory (English: random-access memory, abbreviated as RAM); the memory 21 may also include a non-volatile memory (English: non-volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: : solid-state drive, abbreviation: SSD); the storage 21 may also include a combination of the above-mentioned types of storage.

When the controller is running, the processor 20 may execute the method flow shown in any one of FIG. 1 or FIG. 3-FIG. 5, which may specifically include:

The processor 20 is configured to determine, according to network engineering parameters, the included angles between the direction of each neighboring cell of the local cell relative to the direction of the local cell and the horizontal direction angle of each neighboring cell, and according to the relative Based on the included angle between the direction of the local cell and the horizontal direction angles of the respective neighboring cells, determine the back-facing neighboring cell of the local cell from the various neighboring cells, and the back-facing neighboring cell and the local cell There is no overlapping planned coverage area, and the judgment ratio of the back-facing adjacent cell is calculated, the judgment ratio is used to characterize the deviation degree of the coverage direction of the own cell, and if the judgment ratio is greater than or equal to the preset ratio gate limit value, it is determined that the coverage direction of the local cell is abnormal; the memory 21 is used to store the code of the network engineering parameter, the direction of each neighboring cell relative to the local cell, and the direction of each neighboring cell The included angle of the horizontal direction angle, the judgment ratio, the ratio threshold value, and the software program that controls the processor 20 to complete the above process, so that the processor 20 executes the software program and calls the network The code of the engineering parameter, the direction of each adjacent cell relative to the local cell, the included angle of the horizontal direction angle of each adjacent cell, the judgment ratio and the ratio threshold complete the above process.

Optionally, the judgment ratio calculated by the processor 20 is the ratio of the number of the back-facing neighbors in each of the neighbors,

The processor 20 is specifically configured to calculate the number ratio according to the number of the back-facing neighboring cells and the total number of the respective neighboring cells, and if the number ratio is greater than or equal to the ratio threshold value, then It is determined that the coverage direction of the local cell is abnormal.

Optionally, the judgment ratio calculated by the processor 20 is a handover ratio of the own cell requesting handover to the backward neighboring cell,

The processor 20 is specifically configured to calculate the handover ratio according to the number of handovers requested by the own cell to the backward neighboring cell and the total number of handovers requested by the own cell to each neighboring cell, And if the handover ratio is greater than or equal to the ratio threshold, it is determined that the coverage direction of the local cell is abnormal.

Optionally, the planned coverage area of the facing away neighbor cell and the cell does not overlap, including:

In the first quadrant, the planned coverage area where the left lobe facing away from the adjacent cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the adjacent cell; in the second quadrant Quadrant, the planned coverage area where the right lobe facing away from the neighbor cell does not overlap with the left lobe of the own cell, and the cell is not in the planned coverage area facing away from the neighbor cell; in the third quadrant, the The planned coverage area where the right lobe facing away from the neighbor cell does not overlap with the left lobe of the own cell, and the cell is not in the planned coverage area facing away from the neighbor cell; in the fourth quadrant, the back face The planned coverage area where the left lobe of the neighbor cell does not overlap with the right lobe of the own cell, and the own cell is not within the planned coverage area facing away from the neighbor cell.

Optionally, the planned coverage area of the facing away neighbor cell and the cell does not overlap, including:

The direction of the facing away neighbor cell relative to the current cell is greater than or equal to a preset first threshold value; and the angle between the main coverage direction of the facing away neighbor cell and the main coverage direction of the current cell greater than or equal to the preset second threshold.

Optionally, the network engineering parameters include the latitude and longitude of the local cell and the latitude and longitude of each neighboring cell,

The processor 20 is specifically configured to determine the direction of each neighboring cell relative to the local cell according to the latitude and longitude of the local cell and the latitude and longitude of each neighboring cell.

The controller provided in the embodiment of the present invention may specifically be a control unit integrated in the base station, or may be a control unit independent from the base station, which is not limited in the present invention.

An embodiment of the present invention provides a controller, which can determine the angle between the direction (actual direction) of each neighboring cell of the local cell relative to the direction of the local cell and the horizontal direction angle of each neighboring cell according to actual network engineering parameters, and According to the angle between the direction of each neighboring cell relative to the own cell and the horizontal direction angle of each adjacent cell, determine the back-facing neighbor cell of the cell, and evaluate the coverage direction of the cell (actual coverage direction), so when the judgment ratio of facing away from the adjacent cell (representing the degree of deviation of the actual coverage direction of the cell) is greater than or equal to the ratio threshold value, the controller can determine that the coverage direction of the cell is abnormal. Compared with the prior art, the present invention detects the abnormality of the coverage direction of the cell through the actual data of the cell and each neighboring cell of the cell, can improve the accuracy of detecting the abnormal coverage direction of the cell, and save manpower and material resources.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.

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

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (English full name: Read-Only Memory, English abbreviation: ROM), random access memory (English full name: Random Access Memory, English abbreviation: RAM), magnetic Various media that can store program codes such as discs or optical discs.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a kind of abnormal detection method of the coverage direction of cell, it is characterised in that including：

According to network engineering parameter, the direction and described each adjacent area of each adjacent area relative to described cell of this cell are determined Horizontal direction angle angle；Wherein, the angle at the horizontal direction angle of the adjacent area is main coverage direction and the institute of the adjacent area State the angle between the main coverage direction of this cell；

According to each described adjacent area relative to described cell direction and each adjacent area horizontal direction angle angle, from The dorsad adjacent area of described cell is determined in each described adjacent area, the dorsad adjacent area is covered with the described non-overlapping planning of cell Cover area；

Calculate the judgement ratio of the dorsad adjacent area, the deviation of coverage direction of the judgement ratio for characterizing described cell Degree；

If the judgement ratio is more than or equal to default ratio threshold value, it is determined that the coverage direction of described cell is abnormal.

2. according to the method described in claim 1, it is characterised in that it is described judge ratio for the dorsad adjacent area it is described each Shared quantitative proportion in adjacent area,

The dorsad judgement ratio of adjacent area described in the calculating；If the judgement ratio is more than or equal to ratio threshold value, it is determined that institute The coverage direction for stating this cell is abnormal, including：

According to the quantity of the dorsad adjacent area and the total quantity of each adjacent area, the quantitative proportion is calculated；

If the quantitative proportion is more than or equal to the ratio threshold value, it is determined that the coverage direction of described cell is abnormal.

3. according to the method described in claim 1, it is characterised in that described to judge that ratio is described cell to described dorsad adjacent The switching proportion of area's request switching,

The dorsad judgement ratio of adjacent area described in the calculating；If the judgement ratio is more than or equal to ratio threshold value, it is determined that institute The coverage direction for stating this cell is abnormal, including：

The switching times and described cell of switching are asked to each described adjacent area to the dorsad adjacent area according to described cell The switching total degree of switching is asked, the switching proportion is calculated；

If the switching proportion is more than or equal to the ratio threshold value, it is determined that the coverage direction of described cell is abnormal.

4. the method according to claim any one of 1-3, it is characterised in that

The dorsad adjacent area and the non-overlapping planning overlay area of described cell, including：

In first quartile, the left valve of the dorsad adjacent area planning overlay area non-overlapping with the right valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area；

In the second quadrant, the right valve of the dorsad adjacent area planning overlay area non-overlapping with the left valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area；

In third quadrant, the right valve of the dorsad adjacent area planning overlay area non-overlapping with the left valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area；

In fourth quadrant, the left valve of the dorsad adjacent area planning overlay area non-overlapping with the right valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area.

5. the method according to claim any one of 1-3, it is characterised in that

The dorsad adjacent area and the non-overlapping planning overlay area of described cell, including：

The dorsad adjacent area is more than or equal to default first threshold value relative to the direction of described cell；And

The angle at the horizontal direction angle of the dorsad adjacent area is more than or equal to default second threshold value.

6. a kind of abnormal detection means of the coverage direction of cell, it is characterised in that including：

Determining unit, for according to network engineering parameter, determining the direction of each adjacent area relative to described cell of this cell With the angle at the horizontal direction angle of each adjacent area, and the direction relative to described cell and institute according to each described adjacent area The angle at the horizontal direction angle of each adjacent area is stated, the dorsad adjacent area of described cell, the back of the body are determined from each described adjacent area To adjacent area and the non-overlapping planning overlay area of described cell；Wherein, the angle at the horizontal direction angle of the adjacent area is described Angle between the main coverage direction of the main coverage direction of adjacent area and described cell；

Computing unit, for calculate the determining unit determine described in dorsad adjacent area judgement ratio, the judgement ratio uses In the departure degree for the coverage direction for characterizing described cell；

The determining unit, if the judgement ratio for being additionally operable to the computing unit calculating is more than or equal to default ratio thresholding Value, it is determined that the coverage direction of described cell is abnormal.

7. detection means according to claim 6, it is characterised in that the judgement ratio that the computing unit is calculated is Dorsad adjacent area quantitative proportion shared in each described adjacent area,

The computing unit, specifically for according to the dorsad quantity of adjacent area and the total quantity of each adjacent area, calculating institute State quantitative proportion；

The determining unit, if being more than or equal to the ratio thresholding specifically for the quantitative proportion that the computing unit is calculated Value, it is determined that the coverage direction of described cell is abnormal.

8. detection means according to claim 6, it is characterised in that the judgement ratio that the computing unit is calculated is Described cell asks the switching proportion of switching to the dorsad adjacent area,

The computing unit, the switching times and described specifically for asking switching to the dorsad adjacent area according to described cell This cell asks the switching total degree of switching to each described adjacent area, calculates the switching proportion；

The determining unit, if being more than or equal to the ratio thresholding specifically for the switching proportion that the computing unit is calculated Value, it is determined that the coverage direction of described cell is abnormal.

9. the detection means according to claim any one of 6-8, it is characterised in that

The dorsad adjacent area and the non-overlapping planning overlay area of described cell, including：

In first quartile, the left valve of the dorsad adjacent area planning overlay area non-overlapping with the right valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area,

In the second quadrant, the right valve of the dorsad adjacent area planning overlay area non-overlapping with the left valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area,

In third quadrant, the right valve of the dorsad adjacent area planning overlay area non-overlapping with the left valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area,

In fourth quadrant, the left valve of the dorsad adjacent area planning overlay area non-overlapping with the right valve of described cell, and institute This cell is stated not in the planning overlay area of the dorsad adjacent area.

10. the detection means according to claim any one of 6-8, it is characterised in that

The dorsad adjacent area and the non-overlapping planning overlay area of described cell, including：

The dorsad adjacent area is more than or equal to default first threshold value relative to the direction of described cell；And

The angle at the horizontal direction angle of the dorsad adjacent area is more than or equal to default second threshold value.