CN102014426B - Method for measuring interference ratio based on measurement report - Google Patents
Method for measuring interference ratio based on measurement report Download PDFInfo
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- CN102014426B CN102014426B CN 201010549820 CN201010549820A CN102014426B CN 102014426 B CN102014426 B CN 102014426B CN 201010549820 CN201010549820 CN 201010549820 CN 201010549820 A CN201010549820 A CN 201010549820A CN 102014426 B CN102014426 B CN 102014426B
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Abstract
The invention relates to the field of mobile communication, in particular to a method for measuring an interference ratio based on a measurement report. The method comprises the following steps of: analyzing a service cell occupied by the measurement report for evaluating the interference ratio of a related signaling and related data from the related signaling; computing a distance from the measurement report to each cell of a frequency point with the same adjacent frequency with the frequency point occupied by the measurement report according to the longitude and latitude positioned by the current measurement report according to the longitude and latitude positioned by the current measurement report; and associating the same adjacent frequency condition among the current service cell, a cell with the same adjacent frequency and a cell generated based on the measurement report in a database, and determining an interference value of the cell with the same adjacent frequency according to different association conditions so as to calculate the interference ratio. The method can more completely reflect the magnitude of the same adjacent frequency interference on each position in each cell coverage area, and brings convenience to a mobile telecom carrier to monitor the interference condition of a mobile-communication network in real time and reasonably optimize the allocation of frequency points in time.
Description
Technical field
The present invention relates to moving communicating field, particularly the balancing method of moving communicating field carrier/interface ratio provides a kind of method and is used for weighing the carrier/interface ratio of mobile communication subscriber in the voice call process.
Background technology
Mobile communication communicates by radio spectrum resources, but frequency spectrum resource is limited, along with the growth of mobile communication subscriber quantity, in order to guarantee speech quality, needs the reasonable distribution limited frequency spectrum resources.Carrier/interface ratio when the mobile subscriber is conversed is weighed, can in time reflect the disturbed condition in each base station range, thereby reflection there emerged a the rationality of frequency point allocation between base station cell, help mobile communication carrier monitor in real time mobile communications network disturbed condition and to frequency point allocation carry out in time, reasonable optimizing.
Carrier/interface ratio be the signal of reflection telecommunications in the process of spatial transmission, the ratio of receiving terminal received signal quality, C/I represents with English alphabet, promptly is added to the useful carrier frequency power (C) of reception antenna input port and the ratio of interference signal (I) power.For the communication engineering design, carrier/interface ratio is the standard of analytic signal quality.Utilize in the channel response power ratio of signal tap and noise tap to carry out the estimation of carrier/interface ratio in the prior art, but since in the channel response sample size of signal tap and noise tap limited, influence the accuracy of carrier/interface ratio estimation.
Summary of the invention
The objective of the invention is at the defective that exists in the prior art, a kind of method of the measurement carrier/interface ratio based on measurement report is provided, thereby it is suffered with the adjacent size of disturbing frequently more fully to react in each cell coverage area each position.
Technical scheme of the present invention is as follows: a kind of method of the measurement carrier/interface ratio based on measurement report comprises the steps:
(1) from relevant signaling, parses Serving cell and the related data that the measurement report that will estimate its carrier/interface ratio takies, comprising: the Serving cell frequency that Serving cell signal strength signal intensity, current measurement report take, Serving cell power control size;
(2) calculating this measurement report according to the longitude and latitude to current measurement report location has with the adjacent distance of the sub-district of point again and again to each frequency that takies with it;
(3) with current service cell and carry out relatedly with adjacent information slip frequently with the minizone that generates based on measurement report in adjacent sub-district frequently and the database, described minizone is the statistical form that utilizes the generation of the employed carrier frequency information statistics of cell basis information and sub-district with adjacent information slip frequently;
(4) judge whether and to come out with adjacent sub-district association from database frequently; If can association come out, then go to step (5), if can not association come out, then go to step (6);
(5) utilize in the database the related same adjacent signal strength signal intensity of sub-district frequently that goes out to average average signal strength as the adjacent sub-district of current service cell, in conjunction with measurement report bar number and current measurement report to determining jointly that with the distance of adjacent sub-district frequently an interference value as the interference of this sub-district to current service cell, goes to step (7);
(6) judge whether this sub-district is microcellulor, if microcellulor is not then considered the interference value of this sub-district to Serving cell; If not microcellulor, utilize current measurement report to determine jointly that to the angle between interference basic value, measurement report and the antenna in cell deflection determined with the interval apart from the place of adjacent sub-district frequently an interference value as with the adjacent interference value of sub-district frequently, goes to step (7);
(7) all and the current interference value summation that takies frequency with adjacent sub-district frequently;
(8) be calculated as follows carrier/interface ratio:
Carrier/interface ratio=current measurement report Serving cell signal strength signal intensity+Serving cell power control size-all and the current interference value sum that takies frequency with the sub-district of adjacent frequency.
Further, the method of aforesaid measurement carrier/interface ratio based on measurement report, the minizone described in the step (3) write down the Location Area Code, cell ID, frequency point information of all monitor cell with adjacent information slip frequently and have Location Area Code with adjacent sub-district frequently, cell ID with the frequency of monitor cell, with adjacent dot information again and again.
Further, the method of aforesaid measurement carrier/interface ratio based on measurement report, the average signal strength of the adjacent sub-district described in the step (5) is that the number of times that each Serving cell and adjacent sub-district occur is in pairs added up, and the signal strength signal intensity of adjacent sub-district is averaged resulting mean value.
Further, the method of aforesaid measurement carrier/interface ratio based on measurement report, interference value described in the step (5) is a benchmark with the average signal strength of adjacent sub-district, to calculating as weight with the adjacent distance of sub-district frequently, the concrete value of weight is determined according to telephone traffic and the base station distribution situation of measuring the area with measurement report bar number, current measurement report.
Further, the method for aforesaid measurement carrier/interface ratio based on measurement report, in step (5), for the adjacent sub-district frequently of current service cell, the average signal strength of adjacent sub-district deducts 9dB on the basis of former average signal strength data.
Further, the method for aforesaid measurement carrier/interface ratio based on measurement report, the interference value described in the step (6) is a benchmark to disturb basic value, determines that with the angle between measurement report and the antenna in cell deflection interference weight calculates; Interference basic value normal root is really specified according to the sub-district distribution situation of different districts and cities.
Further, the method of aforesaid measurement carrier/interface ratio based on measurement report, the computational methods of the angle between measurement report described in the step (6) and the antenna in cell deflection are as follows: longitude and latitude and sub-district longitude and latitude according to the measurement report location calculate the angle of measurement report to the line and the direct north of sub-district, do difference with the antenna in cell deflection then and ask absolute value.
Further, the method for aforesaid measurement carrier/interface ratio based on measurement report in step (6), for the adjacent sub-district frequently of current service cell, disturbs basic value to deduct 9dB on the basis of the basic Value Data of former interference.
Beneficial effect of the present invention is as follows: the method for measurement carrier/interface ratio provided by the present invention has been introduced the position location of measurement report (MR), judge interference value according to distance and deflection, quantity according to statistics MR comes association to go out area interference, can more fully react the suffered size of disturbing with adjacent frequency in each position in each cell coverage area.The present invention can in time reflect the disturbed condition in each base station range, thereby reflection there emerged a the rationality of frequency point allocation between base station cell, help mobile communication carrier monitor in real time mobile communications network disturbed condition and to frequency point allocation carry out in time, reasonable optimizing.
Description of drawings
Fig. 1 is a method flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in detail.
The method of the measurement carrier/interface ratio based on measurement report (MR) provided by the present invention, need carry out following preparatory work: at first, MR according to magnanimity in the mobile communications network, the number of times that in database each Serving cell and adjacent sub-district is occurred in pairs adds up, the signal strength signal intensity of adjacent sub-district is averaged, obtain the average signal strength of adjacent sub-district, with this signal strength signal intensity as potential interference Serving cell.Then, utilize cell basis information (Location Area Code LAC, cell ID CI etc.) and the employed carrier frequency information in sub-district (the employed carrier frequency number in each sub-district) statistics generate the minizone with adjacent information slip frequently, in the table LAC, CI, the frequency point information of all monitor cell of record and have LAC, CI with the frequency of monitor cell with adjacent sub-district frequently, with information such as adjacent points again and again, find out after being used for MR and take the cell conditions of frequency with adjacent frequency.
As shown in Figure 1, a kind of method of the measurement carrier/interface ratio based on measurement report comprises the steps:
Step 1, from mobile communications network, gather relevant signaling, from relevant signaling, parse Serving cell and related data that the measurement report (MR) that will estimate its carrier/interface ratio takies, comprising: data such as the Serving cell frequency that Serving cell signal strength signal intensity, current measurement report take, Serving cell power control size.
Step 2 is calculated this measurement report according to the longitude and latitude to current measurement report location and is had with the adjacent distance of the sub-district of point again and again to each frequency that takies with it.
This step can be calculated its spherical distance according to the longitude and latitude of measurement report location and with adjacent sub-district longitude and latitude frequently, also can utilize the air line distance approximate calculation.
Step 3 with current service cell and carry out relatedly with adjacent information slip frequently with the minizone that generates based on measurement report in adjacent sub-district frequently and the database, judges whether and can come out with the sub-district association from database of neighbour's frequency.
" association " described in this step is meant carries out matched and searched in the information slip to the same adjacent minizone of sub-district in database frequently of current service cell frequently with adjacent, finds corresponding recorded information.
Step 4, if can association come out, then utilize in the database the related same adjacent signal strength signal intensity of sub-district frequently that goes out to average average signal strength as the adjacent sub-district of current service cell, in conjunction with the measurement report MR bar number that counts and current measurement report to the common definite interference value of the distance of adjacent sub-district frequently as of the interference of this sub-district to current service cell.Interference value is a benchmark with the average signal strength of adjacent sub-district, and to calculating as weight with the adjacent distance of sub-district frequently, the concrete value of weight can be determined according to telephone traffic and the base station distribution situation of measuring the area with measurement report bar number, current measurement report.
For instance, measurement report bar number and current measurement report are divided between several region to the distance with adjacent frequency sub-district, shown in table 1, table 2,
Table 1
| MR bar number | Weight |
| More than the XXXX | 1 |
| XXX-XXXX | 0.8 |
| XX-XXX | 0.6 |
| X-XX | 0.4 |
| Below the X | 0.2 |
MR interval division standard will be determined according to the telephone traffic situation of prefectures and cities in the table 1.
Table 2
| Distance | Weight |
| 0-X rice | 1 |
| X-XX rice | 0.8 |
| XX-XXX rice | 0.6 |
| XXX-XXXX rice | 0.4 |
| More than the XXXX rice | 0.2 |
Table 2 middle distance interval division will be determined apart from situation according to the base station distribution of prefectures and cities.
Multiply by corresponding weights with average signal strength then and determine interference value, for example, average signal strength is 25, and it is 1 that the MR bar is counted weight, and distance weighting is 0.8, and then interference value is 25*1*0.8=20.
Calculating to interference value in this step is divided into two kinds of situations, and a kind of is calculating at co-frequency cell, and another kind is at neighbour's calculating of sub-district frequently.For co-frequency cell, the co-frequency cell that directly uses association to go out carries out the calculating of above-mentioned interference value as the average signal strength of the adjacent sub-district of current service cell.For neighbour's frequency sub-district, the average signal strength of adjacent sub-district deducts 9dB carries out above-mentioned interference value as preferred value calculating on the basis of former average signal strength data.
Step 5 if can not association come out, needs at first then to judge whether this sub-district is microcellulor, because microcellulor generally is indoor distribution, can ignore to the interference of outside, if microcellulor is not then considered the interference value of this sub-district to Serving cell.If not microcellulor, then utilize current measurement report MR to determine an adjacent together interference value of sub-district frequently of interference value conduct jointly to the angle between interference basic value, measurement report and the antenna in cell deflection determined with the interval apart from the place of neighbour's frequency sub-district.Interference value is a benchmark to disturb basic value, determines to disturb weight to calculate with the angle between measurement report MR and the antenna in cell deflection.Disturb determining and to specify according to the sub-district distribution situation of different districts and cities of basic value, be the known technology of this area.
The computational methods of the angle between measurement report and the antenna in cell deflection are as follows: longitude and latitude and sub-district longitude and latitude according to the measurement report location calculate the angle of measurement report to the line and the direct north of sub-district, do difference with the antenna in cell deflection then and ask absolute value.Because under the identical situation of distance over against antenna or back to antenna interference situation difference, so disturb weight also different, table 3 illustrated the value condition of deflection weight coefficient of different angular range:
Table 3
| Angle x | The deflection weight coefficient |
| 0=＜x＜=45 degree or 315＜=x＜=360 degree | 1.0 |
| 45＜x＜=135 degree or 225＜=x＜315 degree | 0.6 |
| 135＜x＜225 degree | 0.3 |
When specifically calculating interference value, on duty substantially with the corresponding weights coefficient with disturbing, for example, disturbing basic value is 20, and the deflection weight coefficient is 0.6, and then interference value is 20*0.6=12.
Calculating to interference value in this step is divided into two kinds of situations, and a kind of is calculating at co-frequency cell, and another kind is at neighbour's calculating of sub-district frequently.For co-frequency cell, the interference basic value that directly uses current measurement report MR to determine to the interval apart from the place of co-frequency cell carries out the calculating of above-mentioned interference value.For neighbour's frequency sub-district, disturb basic value on the basis of the basic Value Data of former interference, to deduct 9dB carries out above-mentioned interference value as preferred value calculating.
Step 6 is with all and the current interference value summation that takies frequency with adjacent sub-district frequently that calculates in above-mentioned steps four, the step 5.
Step 7 is calculated as follows carrier/interface ratio, obtains the measurement to the carrier/interface ratio of current measurement report MR.
Carrier/interface ratio=current measurement report Serving cell signal strength signal intensity+Serving cell power control size-all and the current interference value sum that takies frequency with the sub-district of adjacent frequency.
Method based on carrier/interface ratio size in the measurement mobile communication subscriber communication process of MR provided by the present invention, the suffered size of disturbing with adjacent frequency in each position in each cell coverage area can more fully be reacted in the position location of having introduced MR.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technology thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. the method based on the measurement carrier/interface ratio of measurement report comprises the steps:
(1) from relevant signaling, parses Serving cell and the related data that the measurement report that will estimate its carrier/interface ratio takies, comprising: the Serving cell frequency that Serving cell signal strength signal intensity, current measurement report take, Serving cell power control size;
(2) calculating this measurement report according to the longitude and latitude to current measurement report location has with the adjacent distance of the sub-district of point again and again to each frequency that takies with it;
(3) with current service cell and carry out relatedly with adjacent information slip frequently with the minizone that generates based on measurement report in adjacent sub-district frequently and the database, described minizone is the statistical form that utilizes the generation of the employed carrier frequency information statistics of cell basis information and sub-district with adjacent information slip frequently;
(4) judge whether and to come out with adjacent sub-district association from database frequently; If can association come out, then go to step (5), if can not association come out, then go to step (6);
(5) utilize in the database the related same adjacent signal strength signal intensity of sub-district frequently that goes out to average average signal strength as the adjacent sub-district of current service cell, in conjunction with measurement report bar number and current measurement report to determining jointly that with the distance of adjacent sub-district frequently an interference value as the interference of this sub-district to current service cell, goes to step (7);
(6) judge whether this sub-district is microcellulor, if microcellulor is not then considered the interference value of this sub-district to Serving cell; If not microcellulor, utilize current measurement report to determine jointly that to the angle between interference basic value, measurement report and the antenna in cell deflection determined with the interval apart from the place of adjacent sub-district frequently an interference value as with the adjacent interference value of sub-district frequently, goes to step (7);
(7) all and the current interference value summation that takies frequency with adjacent sub-district frequently;
(8) be calculated as follows carrier/interface ratio:
Carrier/interface ratio=current measurement report Serving cell signal strength signal intensity+Serving cell power control size-all and the current interference value sum that takies frequency with the sub-district of adjacent frequency.
2. the method for the measurement carrier/interface ratio based on measurement report as claimed in claim 1 is characterized in that: the minizone described in the step (3) write down the Location Area Code, cell ID, frequency point information of all monitor cell with adjacent information slip frequently and have Location Area Code with adjacent sub-district frequently, cell ID with the frequency of monitor cell, with adjacent dot information again and again.
3. the method for the measurement carrier/interface ratio based on measurement report as claimed in claim 1, it is characterized in that: the average signal strength of the adjacent sub-district described in the step (5) is that the number of times that each Serving cell and adjacent sub-district occur is in pairs added up, and the signal strength signal intensity of adjacent sub-district is averaged resulting mean value.
4. as the method for claim 1 or 3 described measurement carrier/interface ratios based on measurement report, it is characterized in that: the interference value described in the step (5) is a benchmark with the average signal strength of adjacent sub-district, to calculating as weight with the adjacent distance of sub-district frequently, the concrete value of weight is determined according to telephone traffic and the base station distribution situation of measuring the area with measurement report bar number, current measurement report.
5. the method for the measurement carrier/interface ratio based on measurement report as claimed in claim 4, it is characterized in that: in step (5), for the adjacent sub-district frequently of current service cell, the average signal strength of adjacent sub-district deducts 9dB on the basis of former average signal strength data.
6. the method for the measurement carrier/interface ratio based on measurement report as claimed in claim 1, it is characterized in that: the interference value described in the step (6) is a benchmark to disturb basic value, determines to disturb weight to calculate with the angle between measurement report and the antenna in cell deflection; Interference basic value normal root is really specified according to the sub-district distribution situation of different districts and cities.
7. the method for the measurement carrier/interface ratio based on measurement report as claimed in claim 6, it is characterized in that: the computational methods of the angle between measurement report described in the step (6) and the antenna in cell deflection are as follows: longitude and latitude and sub-district longitude and latitude according to the measurement report location calculate the angle of measurement report to the line and the direct north of sub-district, do difference with the antenna in cell deflection then and ask absolute value.
8. as the method for claim 6 or 7 described measurement carrier/interface ratios based on measurement report, it is characterized in that: in step (6),, disturb basic value on the basis of the basic Value Data of former interference, to deduct 9dB for the adjacent sub-district frequently of current service cell.
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| CN102404756B (en) * | 2011-11-15 | 2014-03-19 | 上海百林通信网络科技有限公司 | Antenna parameter optimizing system based on mobile phone measurement report |
| CN103347263B (en) * | 2013-06-28 | 2016-05-25 | 北京神州泰岳软件股份有限公司 | Adjacent cell is with adjacent frequency interference optimization processing method and equipment |
| GB2539727B (en) | 2015-06-25 | 2021-05-12 | Airspan Ip Holdco Llc | A configurable antenna and method of operating such a configurable antenna |
| WO2016207603A1 (en) * | 2015-06-25 | 2016-12-29 | Airspan Networks Inc. | Managing external interference in a wireless network |
| WO2017065852A1 (en) | 2015-10-16 | 2017-04-20 | Intel IP Corporation | Sas interference mitigation options |
| CN109246587B (en) * | 2017-06-12 | 2020-09-22 | 中国移动通信集团浙江有限公司 | High-speed rail network interference analysis method and device |
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