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Method and device for evaluating voice service quality

A technology for voice service and quality assessment, applied in the field of communication, can solve problems such as affecting the accuracy of prediction results, difficult to obtain parameters such as BER or FER, etc., to achieve the effect of eliminating correlation, ensuring prediction accuracy, and accurate evaluation results

Active Publication Date: 2016-04-27
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The current voice service quality assessment solution is aimed at network equipment manufacturers. Network equipment can obtain its own parameters such as BER or FER, and then perform voice service quality assessment; but for operators, it is usually difficult to obtain parameters such as BER or FER, so they cannot Using the current voice service quality assessment scheme to obtain high-precision voice service quality assessment results
In addition, the current voice service quality assessment scheme does not remove the correlation between network performance parameters, which affects the accuracy of prediction results

Method used

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  • Method and device for evaluating voice service quality
  • Method and device for evaluating voice service quality
  • Method and device for evaluating voice service quality

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Experimental program
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Embodiment 1

[0026] Embodiment 1 of the present invention provides a voice service quality assessment method to obtain input parameters for uplink and downlink respectively and give voice service quality assessment results. The process described in the embodiment of the present invention is applicable to both uplink and downlink voice service quality assessments ;Such as figure 1 As shown, the method includes the following steps:

[0027] Step 101, obtain network performance parameter (it is the input parameter of evaluation algorithm); As shown in table 1, this network performance parameter includes but not limited to: average reception level RxLev; Signal reception quality Rxqual; Speech coding mode Codec; Channel switching Number of requests HO intra and the number of cell handover requests HO inter ; Discontinuous transmission DTX indication; and, frequency hopping indication HOP and so on.

[0028] Table 1

[0029]

[0030] In the embodiment of the present invention, the networ...

Embodiment 2

[0049] Based on the same inventive concept as the above method, an evaluation device for voice service quality is also provided in the embodiment of the present invention, such as image 3 As shown, the equipment includes:

[0050] The first obtaining module 11 is used to obtain network performance parameters;

[0051] The second obtaining module 12 is used to preprocess the signal parameters in the network performance parameters to obtain the array Pre_data;

[0052] The third obtaining module 13 is used to perform principal component extraction on the array Pre_data to obtain the array PCA_data, and the array PCA_data contains principal component parameters whose contribution to the voice service quality assessment exceeds a preset threshold and are not related to each other;

[0053] The fourth obtaining module 14 is configured to use the array PCA_data to obtain a voice service quality assessment result.

[0054] In the embodiment of the present invention, the network pe...

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Abstract

The invention discloses a method and equipment for assessing voice service quality. The method comprises the steps of obtaining network performance parameters; pre-processing signal parameters in the network performance parameters so as to obtain an array Pre_data; extracting main components from the array Pre_data so as to obtain an array PCA_data, wherein the array PCA_data contains main component parameters which surpass a preset threshold in voice service quality assessment contribution and are not relevant to each other; utilizing the array PCA_data to obtain the voice service quality assessment result. In an embodiment of the method and equipment, based on the network performance parameters that a service provider can obtain, a more reasonable data pre-processing mode is adopted, so that prediction precision of the voice service quality is ensured; through extraction of the main component parameters which are mutually independent, parameters which are large in contribution and are irrelevant to each other are obtained, and the correlation between the parameters is eliminated, so that the assessment result is enabled to be more accurate.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a voice service quality evaluation method and equipment. Background technique [0002] Voice service quality is an important factor affecting customer perception. Operators can obtain voice service quality through DT (DriveTest, drive test) / CQT (CallQualityTest, fixed-point test); however, DT / CQT and other methods have certain limitations ; For example, methods such as DT / CQT need to rely on special test terminals, and the geographical scope and sample size of the test are limited. [0003] In order to solve the above problems, a voice service quality evaluation scheme based on network performance parameters is currently proposed. By extracting network performance parameters inside the network equipment and using network performance parameters to calculate the evaluation value of voice service quality; voice service quality evaluation based on network performance parameters...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00
Inventor 苏健王晶李健徐剑超王小奇
Owner CHINA MOBILE COMM GRP CO LTD