CN104540148B - The detection method and device of a kind of area covered - Google Patents
The detection method and device of a kind of area covered Download PDFInfo
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- CN104540148B CN104540148B CN201410747618.4A CN201410747618A CN104540148B CN 104540148 B CN104540148 B CN 104540148B CN 201410747618 A CN201410747618 A CN 201410747618A CN 104540148 B CN104540148 B CN 104540148B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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Abstract
The embodiment of the invention discloses the detection methods and device of a kind of area covered, are related to wireless communication field, are used to implement and the area covered situation of each cell is detected.The embodiment of the present invention obtains configuration data and drive test data, and configuration data includes the position of base station and antenna azimuth, handoff parameter；According to the position of base station and antenna azimuth, the coverage of each cell is determined；For any cell, according to handoff parameter and the coverage of cell, coverage is extended, obtains the second coverage of cell；The main serving cell of sampled point is determined according to drive test data, according to the quantity using cell as the sampled point of main serving cell, and using cell as the sampled point of main serving cell in fall into or do not fall within the quantity of sampled point in the second coverage of cell, determine the area covered rate of cell, area covered rate is used to represent the area covered degree of cell, it is achieved thereby that the automatic detection of area covered.
Description
Technical field
The present invention relates to wireless communication field more particularly to the detection methods and device of a kind of area covered.
Background technology
In mobile communication system, drive test is the important means assessed quality of wireless network.In real network,
Base station cell may be caused since RF (Radio Frequency, radio frequency) optimizes the reasons such as not in place, parameter setting is unreasonable
The phenomenon that area covered, and the cell that area covered has occurred can cause communication quality large effect, even result in network
The phenomenon that call drop.In the prior art without the detection scheme for area covered, therefore it can not judge whether base station cell occurs
The phenomenon that area covered.
The content of the invention
The embodiment of the present invention provides a kind of detection method and device of area covered, and the more area to detect each cell is covered
Lid degree.
A kind of detection method of area covered, including：
Configuration data and drive test data are obtained, the configuration data includes the position of base station and antenna azimuth, switching ginseng
Number；
According to the position of the base station and antenna azimuth, the first coverage of each cell of the base station is determined；
According to the handoff parameter and the first coverage of the cell, first coverage is extended,
Obtain the second coverage of the cell；
For any cell in each cell of the base station, the main service of sampled point is determined according to the drive test data
Cell, according to using the cell as the quantity of the sampled point of main serving cell and adopting using the cell as main serving cell
The quantity of the sampled point in the second coverage of the cell is fallen into or do not fallen in sampling point, determines that the more area of the cell is covered
Lid rate, the area covered rate are used to represent the area covered degree of the cell.
As it can be seen that the embodiment of the present invention can be according to configuration data and drive test data, automatically, reasonably definite base station is every
The second coverage closest to actual coverage of a cell, additionally it is possible to automatically detect the area covered feelings of each cell
Condition, and according to the area covered situation of each cell, the area covered degree of each cell is assessed, so as to solve now
There is the problem of area covered situation that each cell can not be detected in technology.
Preferably, the position and antenna azimuth according to the base station determines the of each cell of the base station
One coverage, including：Using the position of the base station as the position of a discrete point in Thiessen polygon, by constructing not
The mode of regular Delaunay triangulation network determines the coverage of the base station；According to the antenna azimuth and the base
The coverage stood determines the first coverage of the cell of the base station.In this way, the embodiment of the present invention can be determined automatically
The coverage of each cell of base station, so as to improve the accuracy of area covered detection.
Preferably, it is described according to the handoff parameter and the first coverage of the cell, to the described first covering model
It encloses and is extended, obtain the second coverage of the cell, including：Handoff threshold value and institute in the handoff parameter
State the first coverage of cell, from the first reference point of the first coverage edge of the cell along the base station location with
The first reference point line direction obtains the second reference point to external expansion, according to first reference point and the described second reference
The distance between point is extended the first coverage of the cell, obtains the second coverage of the cell, so that
It is corresponding small that terminal meets the handoff parameter when being linearly moved to second reference point from first reference point
Area's switching condition；Alternatively, the first covering of the handoff threshold value and duration value, the cell in the handoff parameter
The translational speed of scope and terminal, from the first reference point of the first coverage edge of the cell along the base station location
The 3rd reference point is obtained to external expansion with the first reference point line direction, according to first reference point and the described 3rd ginseng
The distance between examination point is extended the first coverage of the cell, obtains the second coverage of the cell, with
Meet institute when terminal being made linearly to be moved to three reference point from first reference point according to the translational speed
State the corresponding cell switching condition of handoff parameter.In this way, the embodiment of the present invention can utilize the switching in cell switching condition to join
Number, is extended the first overlay area, and the second overlay area is made to be covered closer to actual coverage condition so as to improve more area
Cover the accuracy rate of detection.
Preferably, the basis using the cell as the quantity of the sampled point of main serving cell and using the cell as
The quantity of the sampled point in the second coverage of the cell is fallen into or do not fallen in the sampled point of main serving cell, determines institute
The area covered rate of cell is stated, is specifically included：The area covered rate is using the cell as in the sampled point of main serving cell
The quantity for not falling within the sampled point in the second coverage of the cell and the sampled point using the cell as main serving cell
Quantity ratio.In this way, the embodiment of the present invention can use the form of ratio value to export area covered rate, make each
The area covered rate of cell is more accurate, directly perceived.
A kind of detection device of area covered, the device include：
Data capture unit, for obtaining configuration data and drive test data, the configuration data include base station position and
Antenna azimuth, handoff parameter；
Coverage determination unit for the position according to the base station and antenna azimuth, determines the every of the base station
First coverage of a cell；For any cell in each cell of the base station, according to the handoff parameter and institute
The first coverage of cell is stated, first coverage is extended, obtains the second coverage of the cell；
Area covered detection unit, for determining the main serving cell of sampled point according to the drive test data, according to institute
State the sampled point that cell is main serving cell quantity and using the cell as the sampled point of main serving cell in fall into or not
The quantity of the sampled point in the second coverage of the cell is fallen into, determines the area covered rate of the cell, the more area
Coverage rate is used to represent the area covered degree of the cell.
As it can be seen that the embodiment of the present invention can be according to configuration data and drive test data, automatically, reasonably definite base station is every
The second coverage closest to actual coverage of a cell, additionally it is possible to automatically detect the area covered feelings of each cell
Condition, and according to the area covered situation of each cell, the area covered degree of each cell is assessed, so as to solve now
There is the problem of area covered situation that each cell can not be detected in technology.
Preferably, the coverage determination unit is specifically used for, using the position of the base station as in Thiessen polygon
A discrete point position, by way of constructing irregular Delaunay triangulation network, determine the coverage of the base station；
According to the antenna azimuth and the coverage of the base station, the first coverage of the cell of the base station is determined.This
Sample, the embodiment of the present invention can automatically determine the coverage of each cell of base station, so as to improve area covered detection
Accuracy.
Preferably, the coverage determination unit is specifically used for, the handoff threshold value in the handoff parameter and
First coverage of the cell, from the first reference point of the first coverage edge of the cell along the base station location
The second reference point is obtained to external expansion with the first reference point line direction, according to first reference point and the described second ginseng
The distance between examination point is extended the first coverage of the cell, obtains the second coverage of the cell, with
It is corresponding to meet the handoff parameter when terminal being made linearly to be moved to second reference point from first reference point
Cell switching condition；Alternatively, handoff threshold value and duration value in the handoff parameter, the first of the cell covering
The translational speed of lid scope and terminal, from the first reference point of the first coverage edge of the cell along base station position
It puts and obtains the 3rd reference point to external expansion with the first reference point line direction, according to first reference point and the described 3rd
The distance between reference point is extended the first coverage of the cell, obtains the second coverage of the cell,
So that terminal meets when being linearly moved to three reference point from first reference point according to the translational speed
The corresponding cell switching condition of the handoff parameter.In this way, the embodiment of the present invention can utilize the switching in cell switching condition
Parameter is extended the first overlay area, makes the second overlay area closer to actual coverage condition, so as to improve more area
Cover the accuracy rate of detection.
Preferably, the area covered detection unit is specifically used for, and the area covered rate is to be taken based on the cell
The quantity of the sampled point in the second coverage of the cell is not fallen in the sampled point for cell of being engaged in and based on the cell
The ratio of the quantity of the sampled point of serving cell.In this way, the embodiment of the present invention can use the form of ratio value by area covered
Rate is exported, and makes the area covered rate of each cell more accurate, directly perceived.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow diagram of the detection method of area covered provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of construction Delaunay triangulation network provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of construction Thiessen polygon provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of definite cell coverage area provided in an embodiment of the present invention；
Fig. 5 is a kind of structure diagram of area covered test device provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
It is described in detail to one step, it is clear that described embodiment is only the implementation of a part of embodiment of the present invention rather than whole
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
All other embodiment, belongs to the scope of protection of the invention.
In order to solve technical problem existing in the prior art, an embodiment of the present invention provides a kind of detection sides of area covered
Method and device.In the embodiment of the present invention, only configuration data and drive test data need to be imported, you can automatically calculate each cell
Rational coverage, and then accurately judge the area covered rate of each cell.
The embodiment of the present invention can be adapted for a variety of cellular communication systems, particularly for realizing the net to wireless communication system
Network optimizes.The embodiment of the present invention can utilize Thiessen polygon, Delaunay triangulation network or its deformation etc. modes determine base station and
The coverage of the cell of base station, Fig. 1 are that a kind of flow of detection method of area covered provided in an embodiment of the present invention is illustrated
Figure；Based on the method that Fig. 1 is provided, Fig. 2 shows the schematic diagram of construction Delaunay triangulation network provided in an embodiment of the present invention, figure
3 show the schematic diagram of construction Thiessen polygon provided in an embodiment of the present invention；As shown in Figure 1：
Step 11：Acquisition configuration data and drive test data, position and antenna azimuth of the configuration data including base station,
Handoff parameter.
During specific implementation, the configuration data that the embodiment of the present invention obtains can include the position of base station and antenna azimuth letter
The data such as breath, the elevation information of base station, handoff parameter, the drive test data that the embodiment of the present invention obtains can be included at least into walking along the street
The location information etc. of the translational speed information of the terminal of survey, each sampled point.
It should be noted that acquisition configuration data and drive test number in step 11 can be first carried out in the embodiment of the present invention
According to acquisition configuration data and the drive test data in step 11 can also be performed when needed.
Step 12：According to the position of the base station and antenna azimuth, determine that the first of each cell of the base station is covered
Lid scope.
Preferably, in step 12, using the position of the base station as the position of a discrete point in Thiessen polygon,
By way of constructing irregular Delaunay triangulation network, the coverage of the base station is determined；According to the antenna azimuth
And the coverage of the base station, determine the first coverage of each cell of the base station.
During specific implementation, the embodiment of the present invention can determine covering for each base station by way of building Thiessen polygon
Lid scope, detailed process can be as follows：
First, the location information of multiple base stations is imported.As shown in Fig. 2, each discrete point in Fig. 2 is for expression one
The position of base station, the embodiment of the present invention exemplified by importing the position of n base station to be described, when Fig. 2 shows n=8, construction
The schematic diagram of Delaunay triangulation network, the embodiment of the present invention can press three discrete points of the arbitrary neighborhood in n discrete point
According to the generating criteria of Delaunay triangulation network, structure interior angle is the triangulation network of acute angle.
Based on the Delaunay triangulation network of Fig. 3 generations, Fig. 4 is some local schematic diagram of Delaunay triangulation network,
As shown in figure 4, wherein.A, b, c ... f represent each vertex of a triangle；A, B, C ... F represent different triangles；O tables
It is the triangle using o as vertex to show above-mentioned triangle A, B, C ... F.The embodiment of the present invention can be according to specific rule
Each vertex of a triangle in the Delaunay triangulation network is numbered, for example, in Delaunay triangulation network
Any one vertex o finds all triangles using o as vertex, and wherein any one number using o as the triangle on vertex is set
A is set to, the vertex of any one in addition to o of triangle A is arranged to a, and another vertex of triangle A is set to f,
Then the number using of as the triangle on side is F, and the another summit of triangle F is arranged to e, using oe as the number of the triangle on side
For E, and so on, the number of each triangle and the number of each vertex of a triangle can be recorded.
Afterwards, the circumscribed circle center of circle of each triangle in Delaunay triangulation network is calculated, is sequentially connected adjacent external
The round heart, obtains Thiessen polygon, it is seen then that the scope of Thiessen polygon can be considered the base station (by the position of the base station
Base station as discrete point o) coverage.Further, for the Thiessen polygon at Delaunay triangulation network edge, can make
Perpendicular bisector intersects with figure corridor, and Thiessen polygon is formed together with figure corridor.
It, can also be according to the base after the embodiment of the present invention obtains the coverage of any one base station according to above-mentioned steps
The antenna azimuth and the coverage of the base station stood determine the coverage of each cell of the base station.Fig. 4 shows this hair
The process of first coverage of the definite cell that bright embodiment provides, wherein, Fig. 4 show one with vertex be respectively a, b,
C, the Thiessen polygon of d, e, f, wherein, a, b, c, d, e, f be the Thiessen polygon six vertex, oT1、oT2、oT3Respectively
The antenna direction of base station.As shown in figure 4, the Thiessen polygon represents the coverage of some base station, then, oT1With oT2Between
For the antenna azimuth of the base station, oT2With oT3For the antenna azimuth of the base station, oT3With oT1For the antenna bearingt of the base station
Angle.The angular bisector of each antenna azimuth is found, and the method for bisector is to determine the first of each cell by doing two-by-two
Coverage.
Step 13：For any cell in each cell of the base station, according to the handoff parameter and the cell
The first coverage, first coverage is extended, obtains the second coverage of the cell.
Preferably, in step 13 according to the handoff parameter and the first coverage of the cell, to described
One coverage is extended, and obtains the second coverage of the cell, including：Switching door in the handoff parameter
First coverage of limit value and the cell, from the first reference point of the first coverage edge of the cell along the base
Station location and the first reference point line direction obtain the second reference point to external expansion, according to first reference point with it is described
The distance between second reference point is extended the first coverage of the cell, obtains the second covering model of the cell
It encloses, so that terminal meets the handoff parameter pair when being linearly moved to second reference point from first reference point
The cell switching condition answered；Alternatively, of handoff threshold value and duration value, the cell in the handoff parameter
The translational speed of one coverage and terminal, from the first reference point of the first coverage edge of the cell along the base
Station location and the first reference point line direction obtain the 3rd reference point to external expansion, according to first reference point with it is described
The distance between 3rd reference point is extended the first coverage of the cell, obtains the second covering model of the cell
It encloses, so that terminal expires when being linearly moved to three reference point from first reference point according to the translational speed
The corresponding cell switching condition of the foot handoff parameter.
During specific implementation, the embodiment of the present invention can utilize cell handoff algorithms, and the first coverage of cell is carried out
It extends twice, obtains the second coverage closest to reality, the process of realization can be as follows：
By taking sampled point a one by one in office carries out the terminal of drive test as an example, when the terminal is in the first coverage of cell
During any position at edge, it is assumed that the terminal is displaced outwardly r+ △ along the base station location and the first reference point line direction
During d kms, which meets cell switching condition, can be obtained by the first coverage of cell to external expansion r+ △ d kms
Second coverage of the cell, the embodiment of the present invention can according to the handoff parameter in drive test data and cell switching condition,
R and △ d are calculated respectively, and specific implementation process can be as follows：
First, acquisition approach is lost.The embodiment of the present invention by taking Cost231-hata propagation models as an example, to path loss into
Row estimation.The Cost231-hata propagation models in urban district (quasi- smooth earth) are：L=46.3+33.9log10(f)-
13.82log10(hb)-α(hm)+(44.9-6.55log10(hb))·log10(R), wherein, f is the frequency of wireless signal, and f's takes
Value scope is 0~2300 (Mhz), hbFor the height of base station, hbValue range for 30 (m)~200 (m), R is terminal to base station
The distance of antenna, α (hm) be terminal antenna height modifying factor, α (hm)=(1.11log10(f)-0.7)·hm-
(1.56log10(f) -0.8), hmFor the height of terminal, hmValue range be 1 (m)~10 (m).
It should be noted that the present invention can also use the general propagation model after the correction of CW models, formula is：Lu
(dB)=46.3+33.9log (f) -13.82log (hb)-α(hm)+(44.9-6.55log(hb)) log (d)+Cm, wherein, hb
For the height of base station, hbValue range be 30 (m)~200 (m), hmFor the height of terminal, hmValue range be 1 (m)~10
(m), d be terminal to base station antenna distance, unit be kilometer, α (hm) be terminal antenna height modifying factor, α (hm)=
(1.11log(f)-0.7)·hm- (1.56log (f) -0.8), f are the frequency of wireless signal, and unit MHz, value is
2300, Cm be that (dense city value is 3dB to landform modifying factor, and general city value is 0dB, and the outer suburbs value is
12.73dB).The embodiment of the present invention can also utilize other models to estimate the path loss of each cell, as long as meeting the present invention
The band requirement of embodiment.
After getting path loss, according to the handoff parameter in path loss and cell switching condition, the value of r is determined,
Calculating process can be as follows：According to above-mentioned signal transmission model, the difference △ L of wantonly one or two of path loss are calculated, and assume △ L
For handoff threshold value RSCP_DL_COMP, i.e., during drive test, the terminal of drive test is carried out along the base station location and described the
The path loss that one reference point line direction is displaced outwardly r kms is △ L dB.Therefore,
, you can it is derived by
On the other hand, the handoff parameter and duration value in cell switching condition determines the value of △ d, calculates
Process is as follows：Cell switching condition provides, when the PCCPCH_RSCP for some neighbor cell that terminal measures continues at a certain section
When being persistently higher than mono- specified threshold RSCP_DL_COMP of PCCPCH_RSCP of this cell in time value T1, start to judge phase
Whether the pilot frequency intensity of adjacent cell is higher than specified threshold.Therefore, the △ d in the embodiment of the present invention and duration value T1 and this
The translational speed v of terminal is related, it is believed that in duration value T1, the terminal is with the translational speed of v, along base station position
It puts and is displaced outwardly with the first reference point line direction, when moving △ d kms, which meets cell switching condition,
That is △ d=vt/1000/3600 (km).
Pass through above-mentioned realization process, it is possible to find when above-mentioned terminal is from the edge of the first coverage of cell along the base station
When position has been displaced outwardly r+ △ d kms with the first reference point line direction, which carries out cell switching, by above-mentioned
The second coverage that process obtains considered not only the handoff threshold value in cell switching condition, it is also contemplated that the duration
It is worth, so that coverage of the second coverage in the embodiment of the present invention closer to the cell in real network.
It should be noted that realization process provided in an embodiment of the present invention is only a kind of preferred embodiment, based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
Step 14~step 15：The main serving cell of sampled point is determined according to the drive test data, according to the cell
For the sampled point of main serving cell quantity and using the cell as the sampled point of main serving cell in fall into or do not fall within institute
The quantity of the sampled point in the second coverage of cell is stated, determines the area covered rate of the cell, the area covered rate
For representing the area covered degree of the cell.
Preferably, in step 15, the area covered rate be using the cell as the sampled point of main serving cell in not
Fall into the quantity of the sampled point in the second coverage of the cell and using the cell as the sampled point of main serving cell
The ratio of quantity.
During specific implementation, area covered rate in the embodiment of the present invention=using the cell as the sampled point of main serving cell
In do not fall within samplings of the quantity ÷ of sampled point in the second coverage of the cell using the cell as main serving cell
Quantity × 100% of point.
As it can be seen that the embodiment of the present invention is it is contemplated that cell switching condition, so that it is determined that going out closest to the small of actual conditions
Area's coverage, and the phenomenon that whether each cell has occurred area covered can be automatically judged, moreover it is possible to further count
The ratio of the area covered of each cell, and in a manner that the area covered rate to each cell is ranked up, judge to get over area
The cell of most serious is covered, optimal Optimizing Suggestions can also be obtained, it is achieved thereby that the automatic detection of area covered, improves
The accuracy rate of test contributes to guidance optimization engineer fast and accurately to complete the optimization of cellular network basis, and effectively reduces
The cost of optimization project.
Based on identical technical concept, an embodiment of the present invention provides a kind of detection device of area covered, such as Fig. 5 institutes
Show, which includes：
Data capture unit 51, for obtaining configuration data and drive test data, the configuration data includes the position of base station
With antenna azimuth, handoff parameter；
Coverage determination unit 52 for the position according to the base station and antenna azimuth, determines the first of cell
Coverage；According to the handoff parameter and the first coverage of the cell, first coverage is extended,
Obtain the second coverage of the cell；
Area covered detection unit 53, for determining the main serving cell of sampled point according to the drive test data, according to
The cell be the sampled point of main serving cell quantity and using the cell as the sampled point of main serving cell in fall into or
The quantity of the sampled point in the second coverage of the cell is not fallen within, determines the area covered rate of the cell, it is described to get over
Area's coverage rate is used to represent the area covered degree of the cell.
Preferably, the coverage determination unit 52 is specifically used for, using the position of the base station as Thiessen polygon
In a discrete point position, by way of constructing irregular Delaunay triangulation network, determine the covering model of the base station
It encloses；According to the antenna azimuth and the coverage of the base station, the first coverage of the cell of the base station is determined.
Preferably, the coverage determination unit 52 is specifically used for, the handoff threshold value in the handoff parameter
With the first coverage of the cell, from the first reference point of the first coverage edge of the cell along base station position
It puts and obtains the second reference point to external expansion with the first reference point line direction, according to first reference point and described second
The distance between reference point is extended the first coverage of the cell, obtains the second coverage of the cell,
So that terminal meets the handoff parameter and corresponds to when being linearly moved to second reference point from first reference point
Cell switching condition；Alternatively, handoff threshold value and duration value in the handoff parameter, the first of the cell
The translational speed of coverage and terminal, from the first reference point of the first coverage edge of the cell along the base station
Position and the first reference point line direction obtain the 3rd reference point to external expansion, according to first reference point and described the
The distance between three reference points are extended the first coverage of the cell, obtain the second covering model of the cell
It encloses, so that terminal expires when being linearly moved to three reference point from first reference point according to the translational speed
The corresponding cell switching condition of the foot handoff parameter.
Preferably, the area covered detection unit 53 is specifically used for, the area covered rate is based on the cell
Do not fallen in the sampled point of serving cell the quantity of the sampled point in the second coverage of the cell with using the cell as
The ratio of the quantity of the sampled point of main serving cell.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices so that
A stream in flow chart can be achieved in the instruction performed by the computer or the processor of other programmable data processing devices
The function of being specified in journey or multiple flows and/or one box of block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction performed on other programmable devices, which provides, to be used to implement in a flow of flow chart or multiple flows and/or block diagram
A box or multiple boxes in specify function the step of.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (6)
1. a kind of detection method of area covered, which is characterized in that including：
Configuration data and drive test data are obtained, the configuration data includes the position of base station and antenna azimuth, handoff parameter；
According to the position of the base station and antenna azimuth, the first coverage of each cell of the base station is determined；
For any cell in each cell of the base station, according to the handoff parameter and the first covering model of the cell
It encloses, first coverage is extended, obtain the second coverage of the cell, including：
First coverage of handoff threshold value and the cell in the handoff parameter, covers from the first of the cell
First reference point of lid volume edges obtains second along the base station location and the first reference point line direction to external expansion
Reference point, according to the distance between first reference point and second reference point to the first coverage of the cell into
Row extension, obtains the second coverage of the cell, so that terminal is linearly moved to institute from first reference point
Meet the handoff parameter corresponding cell switching condition when stating the second reference point；Alternatively,
Handoff threshold value and duration value, the first coverage of the cell and terminal in the handoff parameter
Translational speed, from the first reference point of the first coverage edge of the cell along the base station location and the described first ginseng
Examination point line direction obtains the 3rd reference point to external expansion, according between first reference point and the 3rd reference point away from
It is extended from the first coverage to the cell, obtains the second coverage of the cell, so that terminal is according to institute
It states when translational speed is linearly moved to three reference point from first reference point and meets the handoff parameter pair
The cell switching condition answered；
The main serving cell of sampled point is determined according to the drive test data, according to the sampled point using the cell as main serving cell
Quantity and using the cell as the sampled point of main serving cell in fall into or do not fall within the second coverage of the cell
The quantity of interior sampled point, determines the area covered rate of the cell, and the area covered rate is used to represent getting over for the cell
Area's level of coverage.
2. the method as described in claim 1, which is characterized in that the position and antenna azimuth according to the base station, really
First coverage of each cell of the fixed base station, including：
Using the position of the base station as the position of a discrete point in Thiessen polygon, by constructing irregular Delaunay
The mode of the triangulation network determines the coverage of the base station；
According to the antenna azimuth and the coverage of the base station, the first covering of each cell of the base station is determined
Scope.
3. the method as described in claim 1, which is characterized in that the basis is using the cell as the sampled point of main serving cell
Quantity and using the cell as the sampled point of main serving cell in fall into or do not fall within the second coverage of the cell
The quantity of interior sampled point determines the area covered rate of the cell, specifically includes：
The area covered rate be using the cell as the sampled point of main serving cell in do not fall within the cell second covering
In the range of sampled point quantity with using the cell as the ratio of the quantity of the sampled point of main serving cell.
4. a kind of detection device of area covered, which is characterized in that the device includes：
Data capture unit, for obtaining configuration data and drive test data, the configuration data includes position and the antenna of base station
Azimuth, handoff parameter；
Coverage determination unit for the position according to the base station and antenna azimuth, determines each small of the base station
First coverage in area；For any cell in each cell of the base station, according to the handoff parameter and described small
First coverage in area is extended first coverage, obtains the second coverage of the cell；
Area covered detection unit, for determining the main serving cell of sampled point according to the drive test data, according to described small
Area be the sampled point of main serving cell quantity and using the cell as the sampled point of main serving cell in fall into or do not fall within
The quantity of sampled point in second coverage of the cell determines the area covered rate of the cell, the area covered
Rate is used to represent the area covered degree of the cell；
The coverage determination unit is specifically used for, and of the handoff threshold value and the cell in the handoff parameter
One coverage is joined from the first reference point of the first coverage edge of the cell along the base station location and described first
Examination point line direction obtains the second reference point to external expansion, according between first reference point and second reference point away from
It is extended from the first coverage to the cell, obtains the second coverage of the cell, so that terminal is from described
First reference point meets the handoff parameter corresponding cell switching condition when being linearly moved to second reference point；
Alternatively, handoff threshold value and duration value, the first coverage of the cell and end in the handoff parameter
The translational speed at end, from the first reference point of the first coverage edge of the cell along the base station location and described first
Reference point line direction obtains the 3rd reference point to external expansion, according between first reference point and the 3rd reference point
Distance is extended the first coverage of the cell, obtains the second coverage of the cell so that terminal according to
The translational speed meets the handoff parameter when being linearly moved to three reference point from first reference point
Corresponding cell switching condition.
5. device as claimed in claim 4, which is characterized in that the coverage determination unit is specifically used for,
Using the position of the base station as the position of a discrete point in Thiessen polygon, by constructing irregular Delaunay
The mode of the triangulation network determines the coverage of the base station；
According to the antenna azimuth and the coverage of the base station, the first covering of each cell of the base station is determined
Scope.
6. device as claimed in claim 4, which is characterized in that the area covered detection unit is specifically used for,
The area covered rate be using the cell as the sampled point of main serving cell in do not fall within the cell second covering
In the range of sampled point quantity with using the cell as the ratio of the quantity of the sampled point of main serving cell.
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| CN106714189B (en) * | 2015-11-13 | 2020-02-21 | 中国移动通信集团广东有限公司 | Method and device for analyzing cell over coverage |
| CN108616803A (en) * | 2016-12-21 | 2018-10-02 | 中国移动通信集团湖北有限公司 | The localization method and device of high ferro user |
| CN108093414B (en) * | 2018-02-13 | 2021-04-06 | 中国联合网络通信集团有限公司 | Method and device for evaluating coverage effectiveness of cell |
| CN112203293B (en) * | 2019-07-08 | 2022-12-27 | 中国移动通信集团浙江有限公司 | Cell over-coverage identification method, device, equipment and computer storage medium |
| CN111065138B (en) * | 2019-12-27 | 2022-02-11 | 中国联合网络通信集团有限公司 | Switching triggering method and user terminal equipment |
| JP7283452B2 (en) * | 2020-08-11 | 2023-05-30 | トヨタ自動車株式会社 | Information processing system, information processing device and information processing program |
| CN112383874B (en) * | 2020-12-04 | 2022-08-05 | 中国联合网络通信集团有限公司 | Cross-zone coverage identification method, device, equipment and storage medium |
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