CN103841601B - A kind of method of accurate assessment TD SCDMA inter-cell frequency scrambling interference menace level - Google Patents
A kind of method of accurate assessment TD SCDMA inter-cell frequency scrambling interference menace level Download PDFInfo
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Abstract
A kind of method of accurate assessment TD SCDMA inter-cell frequency scrambling interference menace level of disclosure of the invention is it is characterised in that mainly include the following steps that：（1）Collect MRO data, extract the measurement report of main plot and adjacent cell；（2）According to the configuring condition of main plot and adjacent cell frequency, scrambler, calculate frequency Noise value and scrambler Noise value；（3）Size finally according to frequency Noise value and scrambler Noise value judges frequency interferences grade and the scrambling interference grade of minizone.The algorithm fast operation of the present patent application, efficiency high, the level of interference of frequency between network cell, scrambler can be counted at any time with network up-to-date MRO measurement data, there is high initiative and real-time, can the various daily and special optimization of quick response demand.
Description
Technical field
The present invention relates to the communications field, specifically refer to a kind of precisely assessment TD-SCDMA inter-cell frequency scrambling interference serious
The method of grade.
Background technology
At present, in the communications field, people are the interference sizes inferring frequency by frequency reuse distance, so-called frequency
Rate multiplex distance refers under meeting QoS requirement it is allowed to using the minimum range between the cell of same frequency.With
Business constantly rises and the continuous dilatation of base station carrier capacity, and the number of times of channeling also gets more and more, channeling away from
Close to also increasingly, the defect that it exists originally also gradually comes out.It is primarily present following three kinds of technological deficiencies：
First, because existing technical scheme majority is based on the relatively geographical position relationship of cell, applying mechanically planning template meter
Draw, therefore higher to the accuracy requirement of basic data.But, also lack verification geographical position, azimuth, sky at present
The means of high accuracy hung by line, and template is excessively copied mechanically and applied indiscriminately simultaneously, lack the consideration to current conditions, underaction, therefore advise
Check off fruit with a low credibility, probability mispairing is higher.
Second, because existing technical scheme does not have the embodiment of the current relation of any network, its planning is all with geographical position
As Primary Reference reference data, then based on carry out on the basis of rationalizing Planning concept, therefore it cannot reflect network not
The level of interference of same scene, different periods application different frequency and different scrambling codes cannot truly reflect network interferences situation.
Third, with the continuous rising of portfolio, being continuously increased and base station construction density of network base station carrier capacity
Improve constantly, but the thing followed is frequency also constantly rises with frequency collision probability, the frequency reuse distance in net is increasingly
Closely.And the disturbed condition of the optional frequency of arbitrary cells and any scrambler cannot judge frequency by multiplex distance in network
The method of interference size is carrying out.
In sum, the judgement of current inter-cell frequency scrambling interference menace level relies solely on multiplex distance to infer
Words, completely inapplicable.
Content of the invention
It is an object of the invention to overcome current relying on multiplex distance credible existing for the interference size of frequency to infer
Degree probability that is low, that mispairing is higher, cannot truly reflect network interferences situation, and cannot determine arbitrary cells in network
The defect of the disturbed condition of optional frequency and any scrambler, provides a kind of precisely assessment TD-SCDMA inter-cell frequency scrambling interference
The method of menace level.
The purpose of the present invention is achieved through the following technical solutions：A kind of TD-SCDMA inter-cell frequency scrambler of precisely assessing is done
The method disturbing menace level, mainly includes the following steps that：
(1) collect MRO data, extract the measurement report of main plot and adjacent cell；
(2) configuring condition according to main plot and adjacent cell frequency, scrambler, calculates frequency Noise value and scrambler Noise
Value；
(3) size finally according to frequency Noise value and scrambler Noise value judges the frequency interferences grade of minizone and disturbs
Code level of interference.
Further, the computing formula of the frequency Noise value described in step (2) is：Frequency
The computing formula of described scrambler Noise value is：
Scrambler
Wherein, frequency Noiseser-AdjFor the frequency interferences normalization class index between main plot and adjacent cell, this value is got over
Big explanation main plot is disturbed stronger by adjacent cell；
Scrambler Noiseser-AdjFor the scrambling interference index between main plot and adjacent cell, this value bigger explanation main plot is adjacent
Area interference is stronger；
1Gser-AdjBe more than or equal to for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value-
The common frequency measurement sampled point quantity of 6dB.
2Aser-AdjBe more than or equal to for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value-
The different-frequency measure sampled point quantity of 6dB.
Same frequencyser-AdjFor the same frequency amount between main plot and adjacent cell；
Carrier numberserTotal carrier number for main plot；
Total sampled pointserOverall measurement sampled point for the MRO of main plot；
Code dependencyser-AdjWeight coefficient for main plot and adjacent cell frequency scrambler.
Wherein, described 1Gser-AdjComputing formula be：
Described 2Aser-AdjComputing formula be：
Code dependencyser-AdjComputing formula be：
Code dependencyser-Adj=same frequency is combined code character weight+compound code character dependency with code character weight+same frequency is same, wherein,
When main plot and adjacent cell are with frequency and with scrambler, this is 1.5 with frequency with code character weight value, otherwise its value 0；Work as main plot
During with adjacent cell with frequency and with compound code character, this is 1 with frequency with compound code character weight value, otherwise its value 0；Described compound key
The span of group dependency is 0.5625～0.9375.
Meanwhile, " the size judgement minizone finally according to frequency Noise value and scrambler Noise value described in step (3)
Frequency interferences grade and scrambling interference grade ", wherein, the criterion of frequency interferences grade is：
When 0% ＜ frequency Noise value≤10%, this frequency interferences grade is slight interference；
When 10% ＜ frequency Noise value≤30%, this frequency interferences grade is moderate interference；
When 30% ＜ frequency Noise value, this frequency interferences grade is severe jamming；
The criterion of scrambling interference grade is：
When 0% ＜ scrambler Noise value≤20%, this scrambling interference grade is slight interference；
When 20% ＜ frequency Noise value≤50%, this scrambling interference grade is moderate interference；
When 50% ＜ scrambler Noise value, this scrambling interference grade is severe jamming.
The present invention has advantages below and beneficial effect compared with the prior art：
(1) present invention has broken traditional planning and the optimum ideals in traditional simple dependence geographical position, is daily frequency, disturbs
Code planning and optimization provide more easily method and more intuitive result.
(2) the algorithm fast operation of the present patent application, efficiency high, network up-to-date MRO measurement data can be used at any time to count
Go out frequency between network cell, the level of interference of scrambler, there is high initiative and real-time, can quick response various daily
With the special demand optimizing.
(3) basic data used by algorithm proposed by the present invention is the MRO measurement data of magnanimity, and it can fully reflect network
Middle actual frequency and the disturbed condition of scrambler, are more beneficial for batch background analysis, are the network optimization and planning offer infallible data
Support.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment
The method of the accurate assessment TD-SCDMA inter-cell frequency scrambling interference menace level of the present invention, main inclusion is following
Step：
(1) collect MRO data, extract the measurement report of main plot and adjacent cell.
MRO data is the abbreviation of measurement report sample data, and MRS is the abbreviation of measurement report statistical data.Measurement report
Statistical data, represents the original measurement report of the by stages statistics in a measurement period, obtaining according to certain statistical condition
Accuse sample size.MRO measurement report mainly includes same-frequency measure reporting, different-frequency measure reporting and isosystem measurement and reports three kinds
Type.And measurement report main information comprises：RNCID, CellID, IMSI, Serving cell dominant frequency frequency, Serving cell currently exist
Received with frequency, Serving cell scrambler, Serving cell code receiving power, adjacent cell dominant frequency frequency, adjacent cell scrambler, adjacent cell code
The information such as power, 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 arrives
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.
(2) configuring condition according to main plot and adjacent cell frequency, scrambler, calculates frequency Noise value and scrambler Noise
Value.Wherein, the computing formula of frequency Noise value is：
Frequency
And the computing formula of described scrambler Noise value is：
Scrambler
Wherein, frequency Noiseser-AdjFor the frequency interferences normalization class index between main plot and adjacent cell, this value is got over
Big explanation main plot is disturbed stronger by adjacent cell.
Scrambler Noiseser-AdjFor the scrambling interference index between main plot and adjacent cell, this value bigger explanation main plot is adjacent
Area interference is stronger.
1Gser-AdjBe more than or equal to for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value-
The common frequency measurement sampled point quantity of 6dB, its computing formula is：
2Aser-AdjBe more than or equal to for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value-
The different-frequency measure sampled point quantity of 6dB, its computing formula is：
Same frequencyser-AdjFor the same frequency amount between main plot and adjacent cell；
Carrier numberserTotal carrier number for main plot；
Total sampled pointserOverall measurement sampled point for the MRO of main plot；
Code dependencyser-AdjWeight coefficient for main plot and adjacent cell frequency scrambler.The distribution of scrambler is in frequency
Carry out on the basis of planning, therefore the Annoyance Index of scrambler increased a yard dependency, code-phase on the basis of frequency algorithm of interference
Guan Xingxu first judges to whether there is between main plot and adjacent cell with frequency with code character weight with frequently with compound code character weight, Ran Houzai
Compound code character dependency in conjunction with main plot and adjacent cell show, its computing formula is：Code dependencyser-Adj=with the same code character of frequency
Weight+with the same compound code character weight of frequency+compound code character dependency.
For with frequency with code character weight, if main plot and adjacent cell are with frequency and same scrambler, its value is 1.5,
Otherwise value 0.
For with frequency with compound code character weight, if main plot and adjacent cell are with frequency and with compound code character, it takes
It is worth for 1, otherwise value 0.Wherein, compound key group allocation table is as shown in the table：
| Packet | Scrambling code identification |
| 1 | 0 4 25 26 28 29 33 39 41 42 48 52 54 56 84 89 |
| 2 | 1 5 7 10 15 20 40 46 47 49 61 64 75 82 118 126 |
| 3 | 2 3 6 11 12 17 22 23 34 35 36 38 45 50 65 86 |
| 4 | 8 9 13 14 18 19 24 27 32 37 44 67 70 104 116 117 |
| 5 | 16 21 30 31 43 59 78 85 92 94 99 105 107 109 124 125 |
| 6 | 51 58 102 127 |
| 7 | 53 80 91 100 120 |
| 8 | 55 60 71 83 87 112 115 |
| 9 | 57 77 81 88 96 97 101 |
| 10 | 62 68 69 76 108 122 |
| 11 | 63 66 72 79 93 95 106 110 113 123 |
| 12 | 73 74 90 98 103 111 114 119 121 |
And described compound code character dependency then refers to the related gonosome and between 12 code characters in TD-SDCMA system 12 code character
Existing, its span is 0.5625～0.9375.The fixing reference data that this meets code character dependency is as shown in the table, and the such as the 1st
Organize and the 3rd group of dependency is 0.875, the 1st group and the 9th group of dependency is 0.5625, and the 6th group and the 8th group of dependency is
0.75.
(3) size finally according to frequency Noise value and scrambler Noise value judges the frequency interferences grade of minizone and disturbs
Code level of interference.The criterion of this frequency interferences grade and scrambling interference grade is by frequency Noise value and scrambler Noise value
Size and affiliated interval range determining.
Frequency interferences grade is divided into slight interference, moderate interference and severe jamming Three Estate, and its criterion is yes, when
During 0% ＜ frequency Noise value≤10%, this frequency interferences grade is slight interference；When 10% ＜ frequency Noise value≤30%
When, this frequency interferences grade is moderate interference；When 30% ＜ frequency Noise value, this frequency interferences grade is severe jamming.
And scrambling interference grade is divided into slight interference, moderate interference and severe jamming Three Estate, its criterion is：When
During 0% ＜ scrambler Noise value≤20%, this scrambling interference grade is slight interference；When 20% ＜ frequency Noise value≤50%
When, this scrambling interference grade is moderate interference；When 50% ＜ scrambler Noise value, this scrambling interference grade is severe jamming.
As described above, the present invention just can be realized well.
Claims (3)
1. a kind of method of accurate assessment TD-SCDMA inter-cell frequency scrambling interference menace level is it is characterised in that main wrap
Include following steps：
(1) collect MRO data, extract the measurement report of main plot and adjacent cell；
(2) configuring condition according to main plot and adjacent cell frequency, scrambler, calculates frequency Noise value and scrambler Noise value；
(3) size finally according to frequency Noise value and scrambler Noise value judges that the frequency interferences grade of minizone and scrambler are done
Disturb grade；
The computing formula of the frequency Noise value described in step (2) is：
The computing formula of described scrambler Noise value is：
Wherein, frequency Noiseser-AdjFor the frequency interferences normalization class index between main plot and adjacent cell, the bigger explanation of this value
Main plot is disturbed stronger by adjacent cell；
Scrambler Noiseser-AdjFor the scrambling interference index between main plot and adjacent cell, this value bigger explanation main plot is by adjacent cell
Interference is stronger；
1Gser-AdjIt is more than or equal to -6dB's for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value
Common frequency measurement sampled point quantity；
2Aser-AdjIt is more than or equal to -6dB's for meeting the difference between adjacent cell PccpchRSCP value and main plot PccpchRSCP value
Different-frequency measure sampled point quantity；
Same frequencyser-AdjFor the same frequency amount between main plot and adjacent cell；
Carrier numberserTotal carrier number for main plot；
Total sampled pointserOverall measurement sampled point for the MRO of main plot；
Code dependencyser-AdjWeight coefficient for main plot and adjacent cell frequency scrambler.
2. the side of a kind of accurate assessment TD-SCDMA inter-cell frequency scrambling interference menace level according to claim 1
Method is it is characterised in that described 1Gser-AdjComputing formula be：
Described 2Aser-AdjComputing formula be：
Code dependencyser-AdjComputing formula be：
Code dependencyser-Adj=same frequency wherein, works as master with code character weight+same frequency with being combined code character weight+compound code character dependency
When cell and adjacent cell are with frequency and with scrambler, this is 1.5 with frequency with code character weight value, otherwise its value 0；As main plot and neighbour
When cell is with frequency and with compound code character, this is 1 with frequency with compound code character weight value, otherwise its value 0；Described compound code character phase
The span of closing property is 0.5625～0.9375.
3. the side of a kind of accurate assessment TD-SCDMA inter-cell frequency scrambling interference menace level according to claim 1
Method it is characterised in that described in step (3) " finally according to frequency Noise value and scrambler Noise value size judge cell
Between frequency interferences grade and scrambling interference grade ", wherein, the criterion of frequency interferences grade is：
When 0% ＜ frequency Noise value≤10%, this frequency interferences grade is slight interference；
When 10% ＜ frequency Noise value≤30%, this frequency interferences grade is moderate interference；
When 30% ＜ frequency Noise value, this frequency interferences grade is severe jamming；
The criterion of scrambling interference grade is：
When 0% ＜ scrambler Noise value≤20%, this scrambling interference grade is slight interference；
When 20% ＜ frequency Noise value≤50%, this scrambling interference grade is moderate interference；
When 50% ＜ scrambler Noise value, this scrambling interference grade is severe jamming.
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| CN104507109B (en) * | 2014-12-22 | 2019-04-05 | 北京胜普多邦通信技术有限公司 | A method of the LTE cell PCI optimization based on MR measurement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083075A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团江苏有限公司 | Frequency planning and scrambling code planning method and device based on adjacent zone priority level |
| WO2013126509A1 (en) * | 2012-02-21 | 2013-08-29 | Ablaze Wireless Corporation | Composite cell |
| CN103402211A (en) * | 2013-08-14 | 2013-11-20 | 北京迪特卡得通信设备有限公司 | Algorithm capable of obtaining interference degrees of TD-S frequencies and scrambling codes quantitatively |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083075A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团江苏有限公司 | Frequency planning and scrambling code planning method and device based on adjacent zone priority level |
| WO2013126509A1 (en) * | 2012-02-21 | 2013-08-29 | Ablaze Wireless Corporation | Composite cell |
| CN103402211A (en) * | 2013-08-14 | 2013-11-20 | 北京迪特卡得通信设备有限公司 | Algorithm capable of obtaining interference degrees of TD-S frequencies and scrambling codes quantitatively |
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