CN103052099A - Identification method for community backward coverage - Google Patents
Identification method for community backward coverage Download PDFInfo
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- CN103052099A CN103052099A CN2012105331919A CN201210533191A CN103052099A CN 103052099 A CN103052099 A CN 103052099A CN 2012105331919 A CN2012105331919 A CN 2012105331919A CN 201210533191 A CN201210533191 A CN 201210533191A CN 103052099 A CN103052099 A CN 103052099A
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- residential quarter
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Abstract
The invention discloses an identification method for community backward coverage, comprising the following steps that the relationship of the outdoor macro station community and a neighbor community is formed through the resolution correlation of an MR (measurement report) signaling, an interference matrix is established accordingly, and neighbor community pairs of all outdoor macro stations are found out; according to each outdoor macro station community, the azimuth of the neighbor community in the outdoor macro station community is determined; and whether the backward coverage phenomenon exists in the outdoor macro station community is judged according to the MR statistics of the outdoor macro station communities emerging in the neighbor community of the outdoor macro station. According to the identification method, on one hand, the backward coverage phenomenon can be found out through a more convenient, quicker and simpler way; on the other hand, through traversing all outdoor macro stations of the communities, all the communities with the backward coverage problem can be found out instead of only testing and analyzing communities with the indicative backward coverage problem, the troubleshooting efficiency of the backward coverage problem is improved, and further, the problem positioning analysis method is also provided.
Description
Technical field
The present invention relates to moving communicating field, the particularly recognition methods that covers dorsad of a kind of residential quarter.
Background technology
Along with the development of mobile communications network, the base station in the city and residential quarter are more come the more, and the density of building a station is also more and more higher, and the network coverage is complicated thereupon also.Be mixed in the misoperation of the reverse connection of antenna that occurs in the process of building a station, meeting is so that the covering of network is more chaotic; Add that the present GSM network equipment has put into operation the more than ten years, equipment component is serious aging, and particularly the aging rear existence of antenna equipment is revealed serious dorsad.Therefore, before carrying out deeper frequency optimization, parameter optimization, structure optimization, need to carry out the existing network coverage regular, with by force the distortion covering correct.In order to reach this purpose, guarantee that normal residential quarter covers, need to the antenna of residential quarter comprehensively be checked, coverage cell especially dorsad, it has run counter to initial planning original intention fully.
The feature of coverage cell embodiment mainly is the direction and the opposite direction that should cover (also opposite with the deflection of residential quarter) of the actual covering in this residential quarter dorsad, has had a strong impact on frequency planning and adjacent section planning, to such an extent as to quality and the retentivity of impact conversation.
Find that at present the method that covers dorsad mainly contains:
1, the monitoring by antenna feeder.Monitor to carry out the monitoring of network antenna running status by antenna feeder, this method for supervising can only be found well to excavate the cosmetic issue that exists for stealthy problem.
2, carry out problem discover by traffic measurement.Analyze by the traffic measurement index to the whole network residential quarter, can find out those residential quarters in the network and have the unusual of index, and then judge whether the residential quarter exists covering problem.Owing to being indirect feedback, Accuracy of Judgement is not high, substantially without practical application effect.
3, identify by the field test at scene.Carry out field test by driving, coverage condition that can collection network can be understood the coverage condition of each residential quarter, thereby identify dorsad coverage cell by further analysis.This method is more accurate, but the test of driving can only be tested road, can not well identify for other regional situations of the whole network; And the method workload is huge, consumption wealth effort.
Therefore, existing dorsad coverage cell recognition methods specific aim is poor, accuracy is not high, and the resource that expends and cost are all larger, and the time cycle is also very long.
Summary of the invention
For the defective that exists in the prior art, the purpose of this invention is to provide the recognition methods that a kind of residential quarter covers dorsad, be used for the efficient identification that realizes that the residential quarter covers dorsad.
For reaching above purpose, the technical solution used in the present invention is:
The recognition methods that a kind of residential quarter covers dorsad may further comprise the steps:
Parsing by measurement report MR signaling is related, forms residential quarter, outdoor grand station to the relation of adjacent area, thereby sets up the interference matrix of residential quarter, finds out the adjacent area pair at all outdoor grand stations;
For each residential quarter, outdoor grand station, determine that its adjacent area is in the orientation of this residential quarter, outdoor grand station;
Judge according to the MR statistics that occurs residential quarter, outdoor grand station in the adjacent area at outdoor grand station whether residential quarter, outdoor grand station exists and cover dorsad phenomenon.
The invention provides the recognition methods that a kind of residential quarter covers dorsad, to find to cover dorsad phenomenon by more convenient, quick, simple mode on the one hand, this mode is utilized the cell parameters such as the longitude and latitude, deflection of residential quarter, in conjunction with MR data statistics and the analysis of Abis mouth, identify dorsad coverage cell; Travel through by the residential quarter to all outdoor grand stations on the other hand, can find out that there is the dorsad residential quarter of covering problem in all in the network, and just the dorsad coverage cell that has problem to embody is not tested and analyzed, not only improved the dorsad investigation efficient of covering problem, the method that also provides simultaneously positioning problems to analyze.
Description of drawings
The recognition methods flow chart that a kind of residential quarter that Fig. 1 provides for the embodiment of the invention covers dorsad;
Fig. 2 determines in the embodiment of the invention that the adjacent area is at the method flow diagram in orientation, residential quarter, outdoor grand station.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The recognition methods that the embodiment of the invention provides a kind of residential quarter to cover dorsad, to find to cover dorsad phenomenon by more convenient faster simpler mode on the one hand, this mode is utilized the cell parameters such as the longitude and latitude, deflection of residential quarter, in conjunction with MR data statistics and the analysis of Abis mouth, identify dorsad coverage cell; Travel through by the residential quarter to all outdoor grand stations on the other hand, can find out that there is the dorsad residential quarter of covering problem in all in the network, and just the dorsad coverage cell that has problem to embody is not tested and analyzed, not only improved the dorsad investigation efficient of covering problem, the method that also provides simultaneously positioning problems to analyze.
As shown in Figure 1, the recognition methods that the present embodiment provides a kind of residential quarter to cover dorsad comprises:
Interference matrix is by information entrained among the MR, utilizes the corresponding relation of distance, residential quarter and the BCCH-BSIC code of minizone to learn out, and concrete grammar comprises:
1, obtains LAC, the CI of residential quarter, outdoor grand station among each MR and the BCCH-BSIC of adjacent area, the LAC and the CI(that go out the adjacent area according to the BCCH-BSIC code correspondence of adjacent area are corresponding out with the corresponding relation of BCCH-BSIC according to LAC-CI, and LAC-CI out may have a plurality of with a pair of BCCH-BSIC code correspondence).
2, calculate the co-channel interference degree of every pair of neighboring BS relationship, namely the adjacent area occurs in the MR of residential quarter, outdoor grand station and the signal strength signal intensity of the signal strength signal intensity of adjacent area-residential quarter, outdoor grand station 〉-the MR accounting of 12dB.
3, take out unique a pair of adjacent area pair.Because the residential quarter of a pair of BCCH-BSIC code correspondence has a plurality of, therefore can occur many to the adjacent area, but should only have one for this a pair of BCCH-BSIC correspondence adjacent area out, should not a plurality of, therefore need to find out this unique and correct that, method is exactly: get a pair of adjacent area pair of co-channel interference degree maximum for the residential quarter of repeating, remove the co-channel interference degree less than 0.0001 adjacent area pair.
4, count each adjacent area between distance (being the distance of outdoor residential quarter, grand station and adjacent area), remove unreasonable adjacent area according to rational distance range.Distance is greater than the removal of certain limit, the urban district be 4Km, the suburb be 10Km, this thresholding is empirical value, can revise.
Obtain interference matrix according to above-mentioned flow process.
In interference matrix, can (basic data comprises the longitude and latitude of residential quarter according to basic data, the base station height, the residential quarter deflection, the angle of pitch, the data such as cell type) distinguish which is residential quarter, outdoor grand station, and it is outdoor or macrocellular that certain residential quarter of message identification is arranged in the basic data, expression all are residential quarters, outdoor grand station.
Set up outdoor residential quarter, grand station and adjacent area to relation according to above flow process, filter out the adjacent area pair at all outdoor grand stations.
The longitude and latitude of outdoor grand station residential quarter cell1 is (X1, Y1), and the longitude and latitude of adjacent area (not grand station or indoor distribution outside the divided chamber) cell2 is (X2, Y2), because
First quartile: X2-X1〉0 and Y2-Y1 0, then
A=270+degree (arctan ((Y2-Y1)/(X2-X1))); The degree function is that radian is changed angled function;
The second quadrant: X2-X1＜0 and Y2-Y1〉0, then
A=90-degree(arctan((Y2-Y1)/(X2-X1)));
Third quadrant: X2-X1＜0 and Y2-Y1＜0, then
A=90+degree(arctan((Y2-Y1)/(X2-X1)));
Fourth quadrant: X2-X1〉0 and Y2-Y1＜0, then
A=270-degree(arctan((Y2-Y1)/(X2-X1)))。
Included angle B=abs (A-residential quarter deflection)
Utilize the angle absolute value of direction vector angle and residential quarter, outdoor grand station deflection to judge the adjacent area is in which orientation of residential quarter, outdoor grand station.
0 degree＜=B＜=45 degree is main lobe direction;
45 degree＜B＜=90 degree are the secondary lobe direction;
B〉90 degree, be the episternites direction.
The MR number MR1 of statistics adjacent area cell2 and the MR number MR2 that outdoor grand station residential quarter cell1 occurs, calculate the accounting C that occurs cell1 among the cell2:
C=MR2/MR1。
As C〉during certain accounting (empirical value is 30%), carry out the dorsad further judgement of coverage cell, execution in step 104;
When C＜=certain accounting (empirical value is 30%), do not think to exist to cover dorsad phenomenon.
When adjacent area cell2 is residential quarter, outdoor grand station, when its station height was too high, the covering phenomenon can appear, so also can receive the measurement report that has residential quarter cell1.When the base station of cell2 height is very high, its signal is launched just very wide farly, coverage will be very wide, far, may also can be subject to so the signal (namely when cell1 does residential quarter, outdoor grand station, the adjacent area of cell2 being arranged also among the MR) of cell2 residential quarter in the coverage of cell1 residential quarter.Therefore need to check the high difference in height high with the station of cell1 in station of adjacent area cell2, if difference in height in 10 meters, thinks then that there was covering problem in outdoor grand station cell1.
The embodiment of the invention mainly provides longitude and latitude, the deflection that utilizes the residential quarter, the high basic data information of standing, and in conjunction with the MR data message of Abis mouth, and the statistics of MR is identified and had the dorsad residential quarter, outdoor grand station of covering problem.On the one hand, utilize MR information to find out to need the adjacent area pair of assessment, longitude and latitude by outdoor residential quarter, grand station and adjacent area, the deflection of residential quarter, outdoor grand station, determine the adjacent area in the orientation of residential quarter, outdoor grand station according to algorithm, the recycling adjacent area between the MR statistical relationship determine whether residential quarter, outdoor grand station exists dorsad covering problem; On the other hand, when the problem discover means are provided, the passage that problem is further analyzed also is provided, can have utilized the dorsad covering problem residential quarter that judges to determine the roughly direction of antenna cover, thereby to inspection and the adjustment provider tropism of antenna.
With traditional road test method ratio, the method need not be used as by the mode that problem highlights the trigger point to be come the problem of certain residential quarter is verified, but can verify in large quantity on one's own initiative the coverage of the outdoor cell in the network range; The second, the logical algorithm of the method is uncomplicated, and the MR data of only need to apply in a flexible way basic data and Abis mouth just can realize, have reduced the work difficulty of optimization personnel and research and development of software, have realized the input and output maximization; The 3rd, the method not only provides the measure of problem discover, the passage that has kept simultaneously the concrete analysis problem, the engineer can be by the dorsad covering problem residential quarter that is judged by which residential quarter, comes sky ray examination and the adjustment of problem cells are instructed according to longitude and latitude and the deflection of its residential quarter.
Method of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to equally technological innovation scope of the present invention.
Claims (10)
1. the recognition methods that the residential quarter covers dorsad is characterized in that, may further comprise the steps:
Parsing by measurement report MR signaling is related, forms residential quarter, outdoor grand station to the relation of adjacent area, thereby sets up the interference matrix of residential quarter, finds out the adjacent area pair at all outdoor grand stations;
For each residential quarter, outdoor grand station, determine that its adjacent area is in the orientation of this residential quarter, outdoor grand station;
Judge according to the MR statistics that occurs residential quarter, outdoor grand station in the adjacent area at outdoor grand station whether residential quarter, outdoor grand station exists and cover dorsad phenomenon.
2. method according to claim 1 is characterized in that, described MR signaling is resolved related method and specifically comprised:
Resolve the MR signaling, obtain the signal strength signal intensity of the signal strength signal intensity of Location Area Code LAC, the cell identification CI of residential quarter, outdoor grand station, residential quarter, outdoor grand station, the BCCH channel of broadcast control of adjacent area, basic identification code BSIC code and adjacent area.
3. method according to claim 2 is characterized in that, the described method of setting up the area interference matrix specifically comprises:
Obtain LAC, the CI of residential quarter, outdoor grand station among each MR and the BCCH-BSIC of adjacent area, go out LAC and the CI of adjacent area according to the BCCH-BSIC code correspondence of adjacent area;
Calculate the co-channel interference degree of every pair of neighboring BS relationship;
Get a pair of adjacent area pair of co-channel interference degree maximum for the residential quarter of repeating, remove the co-channel interference degree less than 0.0001 adjacent area pair, obtain unique a pair of adjacent area pair;
Count each adjacent area between distance, remove unreasonable adjacent area according to rational distance range.
4. method according to claim 3 is characterized in that, described rational distance range rule of thumb determines, the urban district be 4Km, the suburb be 10Km.
5. according to claim 3 or 4 described methods, it is characterized in that, described definite adjacent area specifically comprises in the method in orientation, residential quarter, outdoor grand station:
Utilize latitude and longitude information to determine the direction vector angle of outdoor residential quarter, grand station and adjacent area;
The angle of the adjacent area of determining residential quarter, outdoor grand station between the deflection of the direction vector angle of residential quarter, outdoor grand station and residential quarter;
Determine that according to the different range of described included angle B the adjacent area is in the concrete orientation of residential quarter, outdoor grand station.
6. method according to claim 5 is characterized in that, the method for the direction vector angle A of described definite outdoor residential quarter, grand station and adjacent area specifically comprises:
The longitude and latitude of outdoor grand station residential quarter cell1 is (X1, Y1), and the longitude and latitude of adjacent area cell2 is (X2, Y2), because
First quartile: X2-X1〉0 and Y2-Y1 0, then
A=270+degree (arctan ((Y2-Y1)/(X2-X1))); The degree function is that radian is changed angled function;
The second quadrant: X2-X1＜0 and Y2-Y1〉0, then
A=90-degree(arctan((Y2-Y1)/(X2-X1)));
Third quadrant: X2-X1＜0 and Y2-Y1＜0, then
A=90+degree(arctan((Y2-Y1)/(X2-X1)));
Fourth quadrant: X2-X1〉0 and Y2-Y1＜0, then
A=270-degree(arctan((Y2-Y1)/(X2-X1)))。
7. method according to claim 6 is characterized in that, the method for the described adjacent area of determining residential quarter, outdoor grand station included angle B between the deflection of the direction vector angle of residential quarter, outdoor grand station and residential quarter specifically comprises:
Included angle B=abs (A-residential quarter deflection).
8. method according to claim 7 is characterized in that, described definite adjacent area specifically comprises in the method in the concrete orientation of residential quarter, outdoor grand station:
When, 0 degree＜=B＜=45 degree is main lobe direction;
When, 45 degree＜B＜=90 degree are the secondary lobe direction;
When, B〉90 degree, be the episternites direction.
9. method according to claim 8 is characterized in that, describedly judges whether residential quarter, outdoor grand station exists the method that covers dorsad phenomenon specifically to comprise:
The MR number MR1 of statistics adjacent area cell2 and the MR number MR2 that outdoor grand station residential quarter cell1 occurs, calculate the accounting C that occurs cell1 among the cell2:
C=MR2/MR1；
As C〉during an accounting empirical value, judge whether to exist dorsad according to the screening of the high condition in station to cover;
When C＜=accounting empirical value, do not think to exist to cover dorsad phenomenon.
10. method according to claim 9 is characterized in that, described screening according to the high condition in station judges whether to exist the method that covers dorsad specifically to comprise:
Check the high difference in height high with the station of outdoor grand station residential quarter cell1 in station of adjacent area cell2, if difference in height in 10 meters, thinks then that there was dorsad covering problem in outdoor grand station residential quarter cell1.
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| CN103634837A (en) * | 2013-12-10 | 2014-03-12 | 成都博云科技有限公司 | Method and device for detecting dorsal leakage of housing estate signals in mobile communication network |
| CN105323771A (en) * | 2014-08-04 | 2016-02-10 | 中国移动通信集团广东有限公司 | Method and apparatus for analyzing delay dispersion of repeaters |
| CN108260138A (en) * | 2016-12-28 | 2018-07-06 | 中国电信股份有限公司 | A kind of automatic testing method and device of network engineering parameter |
| CN108513312A (en) * | 2017-02-24 | 2018-09-07 | 中国移动通信集团湖北有限公司 | A kind of method and apparatus for verifying reverse connection of antenna |
| CN114363805A (en) * | 2021-12-29 | 2022-04-15 | 北京红山信息科技研究院有限公司 | Improved triangulation location method for correcting back points |
| CN114363805B (en) * | 2021-12-29 | 2024-04-30 | 北京红山信息科技研究院有限公司 | Triangular positioning improvement method for correcting back point |
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| CN103634837A (en) * | 2013-12-10 | 2014-03-12 | 成都博云科技有限公司 | Method and device for detecting dorsal leakage of housing estate signals in mobile communication network |
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| CN108513312A (en) * | 2017-02-24 | 2018-09-07 | 中国移动通信集团湖北有限公司 | A kind of method and apparatus for verifying reverse connection of antenna |
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| CN114363805A (en) * | 2021-12-29 | 2022-04-15 | 北京红山信息科技研究院有限公司 | Improved triangulation location method for correcting back points |
| CN114363805B (en) * | 2021-12-29 | 2024-04-30 | 北京红山信息科技研究院有限公司 | Triangular positioning improvement method for correcting back point |
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