CN103747474B - A kind of method that assessment network structure problem area is calculated by measurement report - Google Patents
A kind of method that assessment network structure problem area is calculated by measurement report Download PDFInfo
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- CN103747474B CN103747474B CN201410014671.3A CN201410014671A CN103747474B CN 103747474 B CN103747474 B CN 103747474B CN 201410014671 A CN201410014671 A CN 201410014671A CN 103747474 B CN103747474 B CN 103747474B
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Abstract
A kind of method that assessment network structure problem area is calculated by measurement report of disclosure of the invention, it is characterised in that mainly include the following steps that：（1）Overlap is calculated by MRO data and cover sampled point；（2）The weighting foliar symptoms that sampled point calculates crucial cell are covered according to overlap；（3）The film micro area of the crucial cell is found out by two-way positions calculations；（4）Annoyance level of all film micro areas to network is calculated by damage index algorithm, so as to confirm problem area.The present invention has done major transformation in the selection of data source, the sweep measurement data that a large amount of manpower and materials of needs put into are abandoned, use the MRO measurement data that directly can be obtained on webmaster instead, not only its data update cycle is very short, data volume is very big, and its coverage rate is up to 100%.
Description
Technical field
The present invention relates to the communications field, is specifically referred to a kind of calculating by measurement report and assesses network structure problem area
Method.
Background technology
At present, in row TD structural analysis mainly to overlap based on covering analyzing regulation, its data be based on frequency sweep data
Realize.So-called road overlaps covering and refers to：On road PCCPCH RSCP difference less than 6dB, cell RSCP more than-
95dBm, meanwhile, what which included meets the cell sum of above-mentioned condition more than 3.However, overlapping covering analyzing method in actual motion
When, which yet suffers from following defect：
First, as existing technical scheme relies primarily on frequency sweep data, and frequency sweep data needs are manually enterprising to road
Row measurement collection, not only its data collection efficiency is very low, and is also performed to the renewal of large range of data, therefore its data
Collection and update cycle are longer, are unfavorable for assessment and the analysis work of network presence complicated and changeable at present.
Second, could collect as frequency sweep data need tester to put in road test, it is therefore desirable to expend big
The man power and material of amount can just complete the data collection effort an of section or the whole network.
Third, due to existing technical scheme be based on road frequency sweep data, that is to say, that the overlap that is calculated
Covering problem region is also that and the distribution of traffic is then more distributed in the cell floor that vehicle cannot be walked on road,
Therefore which can only position and solve the overlap covering problem of road scene, and its result is only capable of reflecting regional area problem, and cannot
Carry out overall comprehensively analysis.
In sum, the currently used overlap covering analyzing regulation method that is realized based on frequency sweep data does not only exist number
According to the defect that collecting efficiency is low, the consumption of cycle length, manpower and materials is larger, and its result also can only reflect regional area problem,
The situation of whole region can not accurately and effectively be reflected.
Content of the invention
It is an object of the invention to overcoming current people to carry out network structure problem meter using covering analyzing method is overlapped
Existing data acquisition efficiency when assessing of calculation is low, the cycle is long, and manpower and materials consumption is larger, and accurately comprehensively can not reflect
The defect of whole region network problem, provide a kind of energy effectively solving the problems referred to above calculate assessment network knot by measurement report
The method of structure problem area.
The purpose of the present invention is achieved through the following technical solutions：A kind of calculating by measurement report assesses network structure problem
The method in region, mainly includes the following steps that：
(1) overlap is calculated by MRO data cover sampled point；
(2) the weighting foliar symptoms that sampled point calculates crucial cell are covered according to overlap；
(3) film micro area of the crucial cell is found out by two-way positions calculations；
(4) annoyance level of all film micro areas to network is calculated by damage index algorithm, so as to confirm to ask
Topic region.
Further, " calculate overlap by MRO data and cover sampled point " described in step (1) refers to, according to MRO number
Judge according to value whether the main plot is to overlap sampled point is covered, and its criterion is to must simultaneously meet three below bar
Part：First, main plot PCCPCH RSCP >=-95dBm；2nd, PCCPCH RSCP difference ＜ 6dB between adjacent cell and main plot；3rd, accord with
Adjacent cell number >=3 of conjunction condition two.
" covering the weighting foliar symptoms that sampled point calculates crucial cell according to overlap " described in step (2), which is concrete
Comprise the following steps：
(21) determine that the main plot is " persecution " cell or " aggrieved " cell by overlapping covering sampled point；
(22) quantity of statistics " persecution " cell and " aggrieved " cell, forms " persecution " points and " aggrieved " points；
(23) by " persecution " points and " aggrieved " points, crucial cell is oriented, and calculates weighting foliar symptoms.
Wherein, described " weighting foliar symptoms ", its computing formula is：
Wherein, i refers to main plot；
Combination α sampled point refers to that the overlap of different districts composition covers sampled point quantity；
Combination α cell number refers to that the overlap of different districts composition covers the number of cells that sampled point is related to.
" finding out the film micro area of the crucial cell by two-way positions calculations " described in step (3), its " film micro area " is referred to
Mutually there is the region of signal overlap in region with the presence of plural minizone two-by-two.
Described in step (4) " annoyance level of all film micro areas to network is calculated by damage index algorithm,
So as to confirm problem area ", its " damage index algorithm " is all cell weighting foliar symptoms sums for forming film micro area.
" aggrieved " cell described in step (21) is referred to：Taken by mobile phone terminal and its ambient signal similar intensity and number
Cell of the amount more than or equal to 3；Described " persecution " cell then refers to not taken by mobile phone terminal, and which is accounted for by mobile phone terminal
With and the cell of ambient signal similar intensity and quantity more than or equal to 3.
The present invention has advantages below and beneficial effect compared with the prior art：
(1) present invention has done major transformation in the selection of data source, has abandoned sweeping for a large amount of manpower and materials inputs of needs
Frequency measurement data, uses the MRO measurement data that directly can be obtained on webmaster instead, and not only its data update cycle is very short, data
Amount is very big, and its coverage rate is up to 100%.
(2) real reliability of MRO data is very strong, not only has more prominent performance, and MRO in reflection global issue
Data can also effectively avoid the impact brought by accident, more can navigate to accurately and effectively structure present in network
Problem area.
Description of the drawings
Fig. 1 is the overall flow structural representation of the present invention.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
Embodiment
As shown in figure 1, method proposed by the invention is built upon on MRO data basis, which mainly includes following
Step：
(1) overlap is calculated by MRO data cover sampled point.
Measurement is a critical function of TD-SCDMA system.The measurement result that physical layer is reported can be used in system no
Line resources control sublayer completes the triggering of the events such as cell selection/reselection and switching, it is also possible to for system operation maintenance,
The running status of observing system.The network equipment should have the ability of measurement defined measurement report data.Metering system is using week
When phase measures, report cycle can be configured when measurement task is customized.
One is measured, report triggering mode can be event triggering or periodic triggers.If periodic triggers, need
Report cycle to be configured；If event triggering, the then affair having turned on using network, it is not required in addition open measurement.Its
In, the measurement model of TD-SCDMA and all kinds of cycles are defined as follows：
Node B or UE measure the cycle：Represent the cycle that Node B or UE is measured to certain measurement data, for example
The measure the cycle of UPPCH ISCP is 100ms.
Node B or UE measurement report cycle：Represent that Node B or UE reports measurement result to the cycle of RNC, by RNC
With corresponding control message by this periodic notification Node B or UE.
OMC-R measurement period：Represent that OMC-R generates the cycle of measurement report statistics, generally 15 minutes or 15 cycle
The integral multiple of minute.
OMC-R report cycle：Represent that measurement report statistics is reported OMC-R the cycle of NMS, this week by northbound interface
Phase is generally the integral multiple of OMC-R measurement period.
Data content and call format that in the present invention, in regulation OMC-R, wireless measurement is reported, measurement report is in OMC-R
There are two kinds of storage forms：Measurement report sample data (abbreviation MRO) and measurement report statistics (abbreviation MRS).
Measurement report sample data, represents the original measurement report information that OMC-R is collected.Measurement report statistics, table
Show in a measurement period, the original measurement report sample size of the by stages statistics obtained according to certain statistical condition.
Measurement report statistics is divided into one-dimensional measurement reporting statistics and two-dimensional measurement reporting statistics.One-dimensional survey
Amount reporting statistics only relate to a kind of statistical condition, and two-dimensional measurement reporting statistics are related to two kinds of statistical condition.One-dimensional survey
Amount reporting statistics recording feature is as shown in the table.
MRO measurement report mainly includes same-frequency measure reporting, different-frequency measure reporting and isosystem measurement and reports three species
Type.And measurement report main information includes：RNCID, CellID, IMSI, Serving cell dominant frequency frequency, Serving cell currently with
Frequency, Serving cell scrambler, Serving cell code receiving power, adjacent cell dominant frequency frequency, adjacent cell scrambler, adjacent cell code receive work(
The information such as rate, different system dominant frequency, different system colour coding, different system signal intensity and report reporting time.
Wherein, when Serving cell currently with frequency identical with adjacent cell dominant frequency frequency when be same-frequency measure reporting, work as clothes
Business cell is currently pilot frequency point measurement report when being differed with adjacent cell dominant frequency frequency with frequency, and isosystem measurement refers to that TD is arrived
The measurement of GSM, is mainly used in collecting the metrical information of 2G.Same measurement report can include same-frequency measure reporting, different simultaneously
Frequency measure reporting and isosystem measurement report.
In actual motion, overlap in TD-SCDMA and cover Producing reason a lot, influence factor mainly has：Base station is selected
Location, antenna hang height, antenna azimuth, Downtilt, cell layout, the transmission power of PCCPCH, surrounding environment influence etc..
When we carry out networking, overlap covering and our network performance is had a certain impact, be mainly shown as following four
Situation.
First, call completion ratio reduces：Where covering is overlapped, as mobile phone cannot stably reside at a cell, do not stop
Carry out Serving cell gravity treatment, constantly can change Serving cell during mobile phone rises and exhales, easily occur to exhale unsuccessfully.
Second, cutting off rate rises：When there is overlapping situation about covering, due to the sufficiently strong dominant pilot of neither one, mobile phone
In communication process, pingpang handoff can cause cutting off rate to rise than more serious.
Third, power system capacity reduces：When the situation that overlap is covered occurs, due to there is interference, system can be caused to receive clever
Sensitivity is lifted.Apart from base station, signal farther out cannot be accessed, and cause power system capacity to decline.
Fourth, high BLER：Overlap to cover and very big disturbed condition appearance when occurring, had, can so cause BLER to be lifted,
Speech quality is caused to decline, message transmission rate declines.
Based on above-mentioned condition, then heretofore described overlap covers sampled point criterion be must simultaneously meet with
Lower three conditions：First, main plot PCCPCH RSCP >=-95dBm；2nd, PCCPCH RSCP difference ＜ between adjacent cell and main plot
6dB；3rd, eligible two adjacent cell number >=3.
When the measurement report in certain several cell meets three conditions above, then it is determined that for being to overlap covering to adopt
Sampling point.
(2) the weighting foliar symptoms that sampled point calculates crucial cell are covered according to overlap, which specifically includes following steps：
(21) determine that the main plot is " persecution " cell or " aggrieved " cell by overlapping covering sampled point.Described here
" aggrieved " cell refer to：Taken by mobile phone terminal and the cell of its ambient signal similar intensity and quantity more than or equal to 3；Institute
" persecution " cell that states then refers to not taken by mobile phone terminal, and its be taken by mobile phone terminal and ambient signal similar intensity and
Cell of the quantity more than or equal to 3.
(22) quantity of statistics " persecution " cell and " aggrieved " cell, forms " persecution " points and " aggrieved " points.
(23) by " persecution " points and " aggrieved " points, crucial cell is oriented, and weighting foliar symptoms is calculated, its meter
Calculate formula as follows：
I refers to main plot；
Combination α sampled point refers to that the overlap of different districts composition covers sampled point quantity；
Combination α cell number refers to that the overlap of different districts composition covers the number of cells that sampled point is related to；
(3) film micro area of the crucial cell is found out by two-way positions calculations.
Wherein, during film micro area positioning analysis, cell degree of correlation table { Relav can be set up according to covering sampling is overlapped
(Ai, Aj) }, corresponding incidence matrix a is then set up, and it is as follows to design the lookup algorithm of film micro area：
For example, for 4 cells { A, B, C, D }, it is assumed that obtain incidence matrixThe difference table per a line
Show dependency relation Relav of the cell and remaining four cell, be that 1 expression minizone has signal overlap relation, be 0 then not phase
Close.0 is defaulted as on diagonal.Dependency relation can be reduced to bidirectional relationship, and therefore incidence matrix a can be reduced to upper triangular matrixRepresent that the minizone of { A, B, C, D } is mutually associated relation.
Such asIncidence matrix, you can navigate to ψ 1 (A, B, C, D), ψ 2 (A, B, C, D, E) and ψ 3
(A、B、C、D、E).Wherein, it is somebody's turn to do " film micro area " and refers to mutually there is signal two-by-two with the presence of plural minizone in region
The region of overlap, i.e. ψ 1, ψ 2 and ψ 3 are related to the region of cell formation.
(4) annoyance level of all film micro areas to network is calculated by damage index algorithm, so as to confirm to ask
Topic region.And be somebody's turn to do " damage index algorithm " and then refer to all cell weighting foliar symptoms sums for forming film micro area.So-called
" weighting foliar symptoms " then be weigh film micro area covering complexity value.
As described above, the present invention just can be realized well.
Claims (2)
1. a kind of by measurement report calculate assessment network structure problem area method, it is characterised in that mainly include following
Step：
(1) overlap is calculated by MRO data cover sampled point；
(2) the weighting foliar symptoms that sampled point calculates crucial cell are covered according to overlap；Specifically include following steps：
(21) determine that main plot is " persecution " cell or " aggrieved " cell by overlapping covering sampled point；
(22) quantity of statistics " persecution " cell and " aggrieved " cell, forms " persecution " points and " aggrieved " points；
(23) by " persecution " points and " aggrieved " points, crucial cell is oriented, and calculates weighting foliar symptoms；
The computing formula of " the weighting foliar symptoms " is：
Wherein, i refers to main plot；
Combination α sampled point refers to that the overlap of different districts composition covers sampled point quantity；
Combination α cell number refers to that the overlap of different districts composition covers the number of cells that sampled point is related to；Institute in step (21)
" aggrieved " cell that states is referred to：Taken by mobile phone terminal and its periphery has the close and quantity of signal strength signal intensity more than or equal to 3
The cell of cell；Described " persecution " cell then refers to not taken by mobile phone terminal, and which is the cell taken by mobile phone terminal
Periphery the close and quantity of signal strength signal intensity more than or equal to 3 cell；
(3) film micro area of the crucial cell is found out by two-way positions calculations；
Wherein, during film micro area positioning analysis, according to overlap cover sampling set up the cell degree of correlation table Relav (Ai,
Aj) }, corresponding incidence matrix a is then set up, and it is as follows to design the lookup algorithm of film micro area：
For 4 cells { A, B, C, D }, it is assumed that obtain incidence matrixPer a line represent respectively the cell with
Dependency relation Relav of remaining four cell, is that 1 expression minizone has signal overlap relation, be 0 uncorrelated；Diagonal
On be defaulted as 0；Dependency relation is reduced to bidirectional relationship, and therefore incidence matrix a can be reduced to upper triangular matrixRepresent that the minizone of { A, B, C, D } is mutually associated relation；Wherein, it is somebody's turn to do " film micro area " to refer in region
Inside mutually there is the region of signal overlap with the presence of plural minizone two-by-two；
(4) annoyance level of all film micro areas to network is calculated by damage index algorithm, so as to confirm problem area
Domain；" damage index algorithm " is all cell weighting foliar symptoms sums for forming film micro area.
2. a kind of method for calculating assessment network structure problem area by measurement report according to claim 1, which is special
Levying and being, " overlap is calculated by MRO data and cover sampled point " described in step (1) refers to, is judged according to MRO data value
Whether the main plot is to overlap to cover sampled point, and its criterion is to must simultaneously meet three below condition：First, main plot
PCCPCH RSCP≥-95dBm；2nd, PCCPCH RSCP difference ＜ 6dB between adjacent cell and main plot；3rd, eligible two neighbour
Cell number >=3.
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| CN105828365A (en) * | 2016-06-01 | 2016-08-03 | 武汉虹信技术服务有限责任公司 | LTE cell overlapping coverage analysis method based on MR data |
| CN109596089B (en) * | 2017-09-30 | 2021-08-13 | 中国移动通信集团云南有限公司 | Method and device for determining azimuth angle, electronic equipment and storage medium |
| CN108307339B (en) * | 2018-01-12 | 2020-09-08 | 北京天元创新科技有限公司 | User terminal positioning method, system, electronic equipment and storage medium |
| CN110493813B (en) * | 2018-05-15 | 2022-07-01 | 中国移动通信集团湖北有限公司 | Method, device, equipment and medium for determining weak coverage area |
| CN112804709B (en) * | 2019-11-13 | 2022-10-14 | 中国移动通信集团重庆有限公司 | Method and device for determining overlapping coverage condition between serving cells |
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| CN102781015A (en) * | 2011-05-10 | 2012-11-14 | 北京迪特卡得通信设备有限公司 | Method and system for quantitatively evaluating complexity of network structures |
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