CN103888972B - A kind of determination method and device of weak overlay area - Google Patents
A kind of determination method and device of weak overlay area Download PDFInfo
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Abstract
The present invention provides a kind of determination method and device of weak overlay area, is related to communication technical field.Method includes：This electronic map comprising communication network signal intensity point is subdivided into several filter blocks for specifying size, the filter block includes multiple bin points；Each bin points in the electronic map are scanned, the signal intensity of each bin points is obtained, the bin points that the signal intensity is less than the first pre-set threshold value are defined as first kind bin points；Obtain first kind bin points described in each filter block occupies ratio, occupies ratio by described more than the filter block of the first setting factor beforehand and is defined as weak overlay area.The method and device of the present invention can be with the weak overlay area of the determination of high efficiency, pinpoint accuracy, and required human input is few, and is applicable various network formats.
Description
Technical field
The present invention relates to wireless communication technology field, especially it is to provide a kind of determination method and device of weak overlay area.
Background technology
Weak covering refers to that base station spacing is excessive, or building is blocked and caused because area coverage required for base station is big
The weaker situation of borderline region signal, when usual terminal receiving power is less than -90dBm, it is believed that be weak covering.Weak overlay area
Internet phone-calling quality is not only influenceed, and easily causes call drop, causes the low a series of problems of page response rate.Therefore, how
Accurate weak overlay area or the weak covering point found out in network in existing network, and then real-time optimization scheme, have become network excellent
The key of change.
In wireless network（GSM, TD-SCDMA, WCDMA, CDMA2000 etc.）In process of construction, due to actual conditions and rule
The factors such as difference, the change of actual geographic environment, the resettlement of site, the adjustment drawn so that weak coverage condition always exists in net
Among network.Weak covering refers to that because wireless signal is weaker caused by a variety of causes it can not or be difficult to be normally carried out to cause terminal
The business such as call, online, or even cause call drop etc., influence network quality.Therefore, how accurately to find, define in existing network, determining
Weak overlay area present in the network of position even covers hole region, be in the current network planning and Optimization Work key point and
Difficulty.
The scope to weak covering cavity is defined at present and position positioning is main difficulty.The existing network planning,
Under optimal way, to weak covering, the discovery in covering cavity, define, position, the automatical and efficient method of neither one mainly passes through
What the extensive drive test of customer complaint information, existing network, sweep check, the key index monitoring of network performance and terminal were reported
Measurement message statistics are analyzed to find weak covering.But this 4 class means, all there is shortcoming：
Customer complaint information：By collecting the signal difference that user is reflected, the letter of complaint that does not have signal, can not make a phone call etc.
Breath, goes to find the weak covering problem in network, the means can only go analysis from the aspect of point, it is impossible to comprehensively find in network
Weak covering problem, can not more go to define the specific range size of weak covering.In addition, there is obvious hysteresis effect in customer complaint, and
And input resource is more, receives after customer complaint, it is necessary to which optimizing personnel goes live repetition measurement, analysis, inefficiency.
The drive test of the whole network and sweep check：Tester is carried by vehicle, test and the frequency sweep of road are carried out to network,
Then test log is analyzed, the weak covering for finding, positioning in network is gone.Its shortcoming, which is mainly test, to divide from the angle of line
Analysis, limited by travel route, be only capable of main arterial highway signal testing, it is impossible to which comprehensive test is done to signal in path, building, only with
Road test can not accurately analyze the weak coverage condition of road neighboring area, therefore, and the means can not find and define comprehensively net
Weak covering problem in network.In addition, the log analysis of test need to go to judge and position weak cover by the Optimization Experience of optimization personnel
The scope of lid, there is higher requirement to personnel's technical ability.
Network performance key index is monitored：Hair is researched and analysed to the property indices in network by optimization personnel
Existing weak covering, it has the disadvantage to be only capable of substantially to judge which base station or wireless area have weak covering in network, it is impossible to accurate fixed
The weak specific position of covering in position.In addition, the means need to arrange for the analysis that special messenger carries out the whole network index, by performance indications, set
Conjoint Analysis judges that network whether there is weak covering in terms of standby alarm, higher to personnel's skill set requirements.
The measurement message statistics analysis that terminal is reported：By the measurement cell reported, by certain location algorithm, find
With the weak covering of positioning, its measurement message for having the disadvantage to report by terminal goes the weak deviation range covered of positioning larger, in the industry substantially
100 meters of the degree of accuracy can only be accomplished.Other correlation means, are such as propagated by measuring the mobile phone receiving power combining wireless in message
Model algorithm positions the position of weak covering, and similarly existence position deviation is larger waits Similar Problems.
The content of the invention
Covered the technical problem to be solved in the present invention is to provide a kind of pinpoint accuracy, high efficiency and few weak of human input
The determination method and device of cover area.
In order to solve the above technical problems, embodiments of the invention provide a kind of determination method of weak overlay area, including such as
Lower step：
Electronic map comprising communication network signal intensity distribution is subdivided into several filter blocks for specifying size, it is described
Filter block includes multiple bin points；
Each bin points in the electronic map are scanned, the corresponding signal intensity of each bin points is obtained,
The bin points that the signal intensity is less than the first pre-set threshold value are defined as first kind bin points；
Obtain first kind bin points described in each filter block occupies ratio, and the ratio of occupying is pre- more than first
If the filter block of the factor is defined as weak overlay area.
Wherein, the step of being scanned to each bin points in the electronic map includes：
A sliding window is set up on the electronic map；
The sliding window is moved according to predefined procedure on the electronic map, is realized to each bin in the sliding window family
The scanning of point, the scope of the sliding window covering is a filter block.
Wherein, the step of moving the sliding window according to predefined procedure on the electronic map includes：
By the sliding window according to from top to bottom, order from left to right is slided on the electronic map, to entering sliding window
Bin points be scanned.
Wherein, this method also includes：
The bin points in scanning process, being scanned multiple times once are determined belonging to a weak overlay area, that is, assert should
Region represented by bin points is weak overlay area.
Wherein, this method also comprises the following steps：
On the electronic map, to all bin points being defined as in the filter block of weak overlay area and other filtering
First kind bin points in block are rendered.
Wherein, first pre-set threshold value is -90dbm.
Also a kind of determining device of weak overlay area of embodiments of the invention, including：
Filter block setup module, refers to for the electronic map comprising communication network signal intensity distribution to be subdivided into several
Determine the filter block of size, the filter block includes multiple bin points；
Scan module, for being scanned to each bin points in the electronic map, obtains each bin points pair
The signal intensity answered, first kind bin points are defined as by the bin points that the signal intensity is less than the first pre-set threshold value；
Determining module, occupies ratio, by the occupation ratio for obtain first kind bin points described in each filter block
The filter block that example is more than the first setting factor beforehand is defined as weak overlay area.
Wherein, the scan module specifically for：
A sliding window is set up on the electronic map；
The sliding window is moved according to predefined procedure on the electronic map, is realized to each bin in the sliding window family
The scanning of point, the scope of the sliding window covering is a filter block.
Wherein, the scan module further specifically for：
By the sliding window according to from top to bottom, order from left to right is slided on the electronic map, to entering sliding window
Bin points be scanned.
Wherein,
The bin points of scanned module Multiple-Scan are once determined belonging to a weak overlay area, that is, assert the bin points
Represented region is weak overlay area.
Wherein, the present apparatus also includes：
Rendering module, in the electronic map, to all bin points being defined as in the filter block of weak overlay area
And the first kind bin points in other filter blocks are rendered.
The such scheme of the present invention has the advantages that：
The method and device of the present invention passes through to each bin on the electronic map comprising communication network signal intensity distribution
Point is scanned, and obtains the corresponding signal intensity of each bin points, then count default less than first in each filter block
The bin points of threshold values occupy ratio, occupy ratio by described more than the filter block of the first setting factor beforehand and are defined as weak overlay area.
Therefore weak overlay area more can be efficient found, accuracy is high, need human input few.
Brief description of the drawings
Fig. 1 is the schematic diagram of the determination method of weak overlay area in the present invention；
Fig. 2 is the detail flowchart of the determination method of weak overlay area in the present invention；
Fig. 3 is the schematic diagram of the determining device of the weak overlay area of the present invention.
Embodiment
Embodiment 1
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As shown in figure 1, a kind of determination method of weak overlay area, comprises the following steps：
Step 1, the electronic map comprising communication network signal intensity distribution is subdivided into several filtering for specifying size
Block, the filter block includes multiple bin points；
In addition, in order to improve the accuracy of electronic map, so that weak overlay area is determined more accurately, bin can be set
It is set to expression 5m2Actual area area；
Step 2, each bin points in the electronic map are scanned, the signal for obtaining each bin points is strong
Degree, first kind bin points are defined as by the bin points that the signal intensity is less than the first pre-set threshold value；
Step 3, obtain first kind bin points described in each filter block occupies ratio, and the ratio of occupying is more than
The filter block of first setting factor beforehand is defined as weak overlay area.
The method of the present embodiment to each bin points on the electronic map comprising communication network signal intensity distribution by entering
Row scanning, obtains the corresponding signal intensity of each bin points, then count in each filter block less than the first pre-set threshold value
Bin points occupy ratio, occupy ratio by described more than the filter block of the first setting factor beforehand and be defined as weak overlay area.Therefore
Weak overlay area more can be efficient found, accuracy is high, need human input few；In addition, this method is in various network systems
Formula（It is common such as global system for mobile communications GSM, TDS-CDMA, WCDMA WCDMA, CDMA2000 etc.）It can fit down
With.
Message semantic definition is carried out to the method shown in Fig. 1 below：
As shown in Fig. 2 carrying out following steps：
S101, display includes the electronic map of communication network signal intensity distribution；The electronic map is by several bin points
Composition, in order to ensure the high accuracy of electronic map, each bin point is to represent that actual geographic position is 52M square region
Domain.In addition, it is necessary to, it is noted that make electronic map comprising communication network signal intensity distribution method be prior art, can lead to
Emulation platform simulation is crossed to realize, afterwards again using the drive test data of daily magnanimity as correction data source, the electricity of combined high precision
Sub- map, by fitting algorithm, is corrected to the result that emulation platform is simulated.Counted afterwards by the result after correction
Calculate, the signal intensity predicted value of each bin points of gained is infinitely reached unanimity with actual signal intensity.Compare traditional emulation or
The modes such as person MR statistical analyses, drive test, fine emulation platform has great lifting in terms of comprehensive, accuracy and reliability,
Accuracy after ensure that to being determined to weak overlay area.
S102, sets the analysis condition of weak overlay area；Including：
One signal intensity threshold values is set（I.e. above-mentioned first predetermined threshold value）, signal intensity can be judged using level, will
Threshold values is set to -90dbm, less than the signal of the threshold values, then it is assumed that do not meet job requirement；
Graph One factor is set, and the factor is used to represent occupying for the bin points for being less than -90dbm signal intensities in filter block block
Ratio thresholding；
S103, sets up a sliding window on the electronic map, and sliding window is made up of 3 × 3 bin points；The sliding window is often mobile once,
It is in the filter block that the scope that electronic map is covered is one；
S104, makes sliding window according to from top to bottom, from left to right order is slided, filtering type is carried out to the bin points for entering sliding window
Scanning, obtains corresponding signal intensity；
Into sliding window first bin point for point in map near upper left 3 × 3 bin points（Emulation covering map
In row and column arrangement serial number：Bin point row sequences from top to bottom are followed successively by the 1st row 1, the 2nd row, the 3rd row ..., from a left side
The 1st row, the 2nd row, the 3rd row ... are followed successively by right bin point sequences）.With 3 rows of the complete the top of the motion scan of sliding window
After bin points, sliding window is by line down, to the 2nd, 3,4 row bin points according to order from left to right, again to the bin into sliding window
Point is scanned.It is reciprocal with this, until all bin points are scanned at least 1 time in scope；Finally by signal intensity be less than-
90bdm bin is defined as first kind bin points；
S105, is calculated in current sliding window（That is current filter block）The occupation proportion of first kind bin points；
S106, judges to occupy whether ratio is more than the factor set in step S 102；If greater than then carrying out step
S108, if less than then progress step S107；
S107, it is non-weak overlay area to determine current filter block；
S108, it is weak overlay area to determine current filter block；
S109, after scanning through all bin points, to all bin points for being defined as in the filter block of weak overlay area with
And the first kind bin points in other filter blocks are rendered, the position of electronic map where it is such as filled red, so that more
Visual and clear is viewed；
It is to be noted that during sliding window formula filter scan, a bin point can be included in calculating by multiple filter blocks,
It is marked as accordingly, it is possible to there is same bin points in filter block before in the empty scope of weak covering, the filter block quilt after
Labeled as non-weak covering cavity.For such issues that, the method for solution is：In scanning process, as long as the bin being scanned multiple times
Point is once determined belonging to a weak overlay area, that is, assert that the region represented by the bin points is weak overlay area, and to it
Carry out Rendering Flags；
S110, preserves result.
The method of the present embodiment to each bin points on the electronic map comprising communication network signal intensity distribution by entering
Row scanning, obtains the corresponding signal intensity of each bin points, then count in each filter block less than the first pre-set threshold value
Bin points occupy ratio, occupy ratio by described more than the filter block of the first setting factor beforehand and be defined as weak overlay area.Therefore
Weak overlay area more can be efficient found, accuracy is high, need human input few；In addition, a sliding window is set, to mobile
Bin points in sliding window are scanned, and same bin points can be made to be taken multiple scan in diverse location filter block, and repeatedly enter
The corresponding ration statisticses of row, can further increase the lookup degree of accuracy of weak overlay area.
Embodiment 2
As shown in Fig. 2 a kind of determining device of weak overlay area, including：
Filter block setup module refers to for the electronic map comprising communication network signal intensity distribution to be subdivided into several
Determine the filter block of size, the filter block includes multiple bin points（I.e. one bin point is the full accuracy of electronic map）；In addition,
In order to ensure the high accuracy of electronic map, each bin point is to represent that actual geographic position is 52M square area.
Scan module, for being scanned to each bin points in the electronic map, obtains each bin points
Signal intensity, first kind bin points are defined as by the bin points that the signal intensity is less than the first pre-set threshold value；
Determining module, occupies ratio, by the occupation ratio for obtain first kind bin points described in each filter block
The filter block that example is more than the first setting factor beforehand is defined as weak overlay area.
When being determined in the weak overlay area of progress, scan module can set up a sliding window on the electronic map, and the sliding window is every
Once, its scope covered is the filter block of one for movement；By the sliding window according to from top to bottom, order from left to right exists
Slide, the bin points for entering sliding window are scanned, to obtain the bin points pair being each scanned on the electronic map
The signal intensity answered, first kind bin points are defined as by the bin points that the signal intensity is less than the first pre-set threshold value；Then, render
The first kind bin points that module is defined as in all bin points and other filter blocks in the filter block of weak overlay area again are carried out
Render, be such as rendered to red, so that more visual and clear view from electronic map.
It is pointed out that during sliding window formula filter scan, a bin point can include calculating by multiple filter blocks
In, be marked as accordingly, it is possible to there is same bin points in filter block before in the weak empty scope of covering, post filtering
Block is marked as non-weak covering cavity.For such issues that, only the bin points of module Multiple-Scan to be scanned are once determined
Belong to a weak overlay area, that is, it is weak overlay area to assert the region represented by the bin points.
And Rendering Flags is carried out to it.
The device of the present embodiment to each bin points on the electronic map comprising communication network signal intensity distribution by entering
Row scanning, obtains the corresponding signal intensity of each bin points, then count in each filter block less than the first pre-set threshold value
Bin points occupy ratio, occupy ratio by described more than the filter block of the first setting factor beforehand and be defined as weak overlay area.Therefore
Weak overlay area more can be efficient found, accuracy is high, need human input few；In addition, a sliding window is set, to mobile
Bin points in sliding window are scanned, and same bin points can be made to be taken multiple scan in diverse location filter block, and repeatedly enter
The corresponding ration statisticses of row, can further increase the lookup degree of accuracy of weak overlay area.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of determination method of weak overlay area, it is characterised in that comprise the following steps：
Electronic map comprising communication network signal intensity distribution is subdivided into several filter blocks for specifying size, the filtering
Block includes multiple bin points；
Each bin points in the electronic map are scanned, the corresponding signal intensity of each bin points are obtained, by institute
The bin points that signal intensity is stated less than the first pre-set threshold value are defined as first kind bin points；
Obtain first kind bin points described in each filter block occupies ratio, by it is described occupy ratio it is default more than first because
The filter block of son is defined as weak overlay area；
Wherein, the step of being scanned to each bin points in the electronic map includes：
A sliding window is set up on the electronic map；
The sliding window is moved according to predefined procedure on the electronic map, is realized to each bin points in the sliding window family
Scanning, the scope of the sliding window covering is a filter block, including
By the sliding window according to from top to bottom, order from left to right is slided on the electronic map, the bin to entering sliding window
Point is scanned, wherein the bin points in scanning process, being scanned multiple times once are determined to belong to a weak overlay area,
It is weak overlay area to assert the region represented by the bin points.
2. the determination method of weak overlay area according to claim 1, it is characterised in that also comprise the following steps：
On the electronic map, to being defined as in all bin points and other filter blocks in the filter block of weak overlay area
First kind bin points rendered.
3. the determination method of weak overlay area according to claim 1, it is characterised in that first pre-set threshold value for-
90dbm。
4. a kind of determining device of weak overlay area, it is characterised in that including：
Filter block setup module, specifies big for the electronic map comprising communication network signal intensity distribution to be subdivided into several
Small filter block, the filter block includes multiple bin points；
Scan module, for being scanned to each bin points in the electronic map, obtains each bin points corresponding
Signal intensity, first kind bin points are defined as by the bin points that the signal intensity is less than the first pre-set threshold value；
Determining module, occupies ratio for obtain first kind bin points described in each filter block, and to occupy ratio big by described
It is defined as weak overlay area in the filter block of the first setting factor beforehand；
Wherein, the scan module specifically for：
A sliding window is set up on the electronic map；
The sliding window is moved according to predefined procedure on the electronic map, is realized to each bin points in the sliding window family
Scanning, the scope of the sliding window covering is a filter block, including：
By the sliding window according to from top to bottom, order from left to right is slided on the electronic map, the bin to entering sliding window
Point is scanned；Wherein,
The bin points of scanned module Multiple-Scan are once determined belonging to a weak overlay area, that is, assert the bin points institute table
The region shown is weak overlay area.
5. the determining device of weak overlay area according to claim 4, it is characterised in that also include：
Rendering module, in the electronic map, to all bin points for being defined as in the filter block of weak overlay area and
First kind bin points in other filter blocks are rendered.
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Families Citing this family (8)
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| CN105530653B (en) * | 2014-09-28 | 2019-04-12 | 国际商业机器公司 | The method and apparatus for determining the covering cavity of the communication network of roadside |
| US10341878B2 (en) * | 2015-03-17 | 2019-07-02 | T-Mobile Usa, Inc. | Connection technology-based wireless coverage verification |
| WO2018081971A1 (en) * | 2016-11-03 | 2018-05-11 | 深圳达闼科技控股有限公司 | Path planning method and device, server, and robot |
| CN111295904A (en) * | 2018-12-18 | 2020-06-16 | 深圳市大疆创新科技有限公司 | Coverage information determination method, signal coverage information determination device and unmanned aerial vehicle |
| CN109639496A (en) * | 2018-12-21 | 2019-04-16 | 中国联合网络通信集团有限公司 | A kind of localization method and device in radio network problems region |
| CN110381468B (en) * | 2019-08-08 | 2023-04-07 | 广州小鹏汽车科技有限公司 | Configuration method and system of vehicle network and vehicle |
| CN111934738A (en) * | 2020-08-13 | 2020-11-13 | 盐城工学院 | Novel emergency communication repeater communication method and system |
| CN113301503B (en) * | 2021-05-14 | 2022-07-15 | 北京邮电大学 | Weak coverage area detection method and device |
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| JP2003264210A (en) * | 2002-03-08 | 2003-09-19 | Semiconductor Leading Edge Technologies Inc | Coverage inspection method |
| CN101351013A (en) * | 2007-07-18 | 2009-01-21 | 中兴通讯股份有限公司 | Method and system for detecting wireless network zone-skipping shrouding |
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| JP2003264210A (en) * | 2002-03-08 | 2003-09-19 | Semiconductor Leading Edge Technologies Inc | Coverage inspection method |
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