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Method and device for acquiring interference matrix

An interference matrix and clustering technology, applied in the field of mobile communication, can solve the problems of high calculation amount, unable to collect the original data of measurement report, and difficult to reflect the real feeling of users, and achieve the effect of strong engineering practicability.

Inactive Publication Date: 2010-09-29
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of the ray tracing theoretical model, it is impossible to accurately reflect the actual situation of inter-cell interference, it is difficult to reflect the real feelings of users, and many auxiliary resources such as base station data and 3D digital maps are required
Due to technical barriers and costs, the original data of the measurement report is often unable to be collected
The analysis of massive raw data also leads to a high amount of calculation

Method used

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  • Method and device for acquiring interference matrix
  • Method and device for acquiring interference matrix
  • Method and device for acquiring interference matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 2 As shown, the method for obtaining the interference matrix of the present invention includes the following steps:

[0065] Step 21: Transform the frequency sweep data into quantitative data of carrier-to-interference ratio

[0066] Each sweep data provides the signal strength (dBm), location area identifier (LAC), cell identifier (CELL ID), and base station color code (BSIC) on all frequency points. Table 1 gives an example.

[0067] Table 1 Sweep frequency data format example

[0068] Sweep

data

Frequency

number

Signal power

Rate value

(dBm)

LAC

CELL

ID

Base station color code

(BSIC)

Frequency

number

Signal power

Rate value

(dBm)

......

the first

Article

1

□83.56

22580

40411

70

2

□49.12

......

......

......

......

......

......

......

......

......

......

[0069] In order to realize the fusion of the frequency sweep data and the statistical data of the measuremen...

Embodiment 2

[0136] The technical solution provided by the present invention can also be used Figure 4 The device shown is implemented. The device includes:

[0137] Clustering module according to frequency domain features: connect the frequency sweep data, cluster the frequency sweep data according to the frequency domain characteristics, and obtain class features;

[0138] Traffic distribution estimation module: connect to the frequency domain feature clustering module, use measurement report statistics and class features to do linear regression to estimate the cell traffic distribution.

[0139] Measurement report statistical data supplement module (the first data fusion module): connects measurement report statistical data, clustering module by frequency domain feature, and traffic distribution estimation module to supplement the missing frequencies in the measurement report statistical data based on the linear regression model Domain information, the statistical data of the completed measu...

Embodiment 3

[0150] The technical solution provided by the present invention can also be used image 3 The device shown is implemented. The device includes:

[0151] Frequency domain feature clustering module: same as the frequency domain feature clustering module in the device described in Example 2;

[0152] Traffic distribution estimation module: the same as the traffic distribution estimation module in the device described in Example 2;

[0153] Frequency sweep data reconstruction module (second data fusion module): connects frequency sweep data, clustering module according to frequency domain features and traffic distribution estimation module, used to weight sweep data according to the estimation of cell traffic distribution Reconstruct to obtain the reconstructed frequency sweep data.

[0154] The second interference matrix calculation module: connected to the frequency sweep data reconstruction module, used to generate the interference matrix IM-DT' according to the reconstructed frequenc...

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Abstract

The invention discloses a method and a device for acquiring an interference matrix. The method mainly comprises the clustering of sweep-frequency data according to frequency-domain characteristics, the telephone traffic distribution estimation based on measurement report classification, and the data fusion and interference matrix computation based on class characteristics and telephone traffic distribution. The device mainly comprises a module for clustering according to the frequency-domain characteristics, a telephone traffic distribution estimating module, a data fusion module and an interference matrix computation module. The invention enables the generated interference matrix to accurately and completely reflect the actual situation of minizone interference and the real feeling of a mobile user via the complementation of the sweep-frequency data and the statistical data of the measurement report. The method of the invention has no special requirement on the input data, the required statistical data of the measurement report can be easily extracted on various OMCR devices of manufactures; and the treatment complexity is low, a large number of measurement reports do not need to be analyzed, a three-dimensional map and other auxiliary tools are not needed, and the engineering practicability is strong.

Description

Technical field [0001] The present invention relates to the field of mobile communication technology, and in particular to a method and device for obtaining an interference matrix in a network frequency planning process. Background technique [0002] For mobile communication systems, frequency resources are very precious. In order to make full use of limited frequency resources to meet users' requirements for network capacity and quality, the GSM network adopts frequency reuse technology. Frequency reuse greatly increases the system capacity of the network, but it will cause inter-cell interference and reduce the quality of calls. Therefore, reasonable network frequency planning is the core of network construction. [0003] In the daily operation of the GSM network, the allocation of frequency points between cells needs to be adjusted with changes in the traffic volume and propagation environment within the coverage area to maintain network performance. The current mature networ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W24/10H04B1/707
Inventor 黄爱苹武洲云周豪杰化存卿钱峻杨健熊宙实郑航海芈大伟
Owner ZHEJIANG UNIV