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Wireless communication voice quality assessment device, system and method thereof

A voice quality and evaluation device technology, applied in wireless communication, error detection/prevention using a signal quality detector, network traffic/resource management, etc. issues of sex

Active Publication Date: 2012-05-09
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0005] (1) Its considerations do not cover the impact of the voice coding scheme, coding rate, and the number of times the codec passes through the codec during the speech transmission process on the voice quality of the wireless network voice call quality;
[0006] (2) For some wireless processes that have an impact on voice quality, the accuracy of voice quality evaluation and the correlation with PESQ evaluation criteria are directly affected due to incomplete considerations;
[0007] (3) Bit error rate (BER, also known as bit error rate) participates in speech quality evaluation as one of the wireless link parameters, because its measurement in some special wireless communication systems (such as TDS-CDMA) is inaccurate, will affect the accuracy of the evaluation results

Method used

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  • Wireless communication voice quality assessment device, system and method thereof
  • Wireless communication voice quality assessment device, system and method thereof
  • Wireless communication voice quality assessment device, system and method thereof

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Embodiment Construction

[0074] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0075] Such as figure 1 Shown is the flow process of the wireless communication voice quality evaluation method embodiment of the present invention, comprising steps:

[0076] 110: Obtain wireless link parameters, and obtain speech codec related parameters and / or wireless process parameters;

[0077] The wireless link parameters include, but are not limited to, the block error rate, bit error rate, frame loss rate or frame error rate, and the longest continuous frame loss or frame error length of data blocks transmitted over the wireless link. The radio link parameters in the uplink direction can be obtained according to the uplink service data, and the radio link...

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Abstract

The invention provides a wireless communication voice quality assessment device, a system and a method thereof, wherein the device comprises: a radio link parameter obtaining unit which is connected with a comprehensive assessment unit to output the obtained radio link parameter to the comprehensive assessment unit; a voice coding-decoding parameter obtaining unit that is connected with the comprehensives assessment unit to output the obtained video coding-decoding parameter to the comprehensive assessment unit; and a radio process parameter obtaining unit that is connected with the comprehensive assessment unit to output the obtained radio process parameter to the comprehensive assessment unit, wherein the comprehensive assessment unit can implement a voice quality comprehensive assessment and output assessment result according to the input radio link parameter and the input voice coding-decoding parameter and / or radio process parameter. In the invention, the assessment is carried out based on more comprehensive influencing factors, and the correlation to PESQ assessment is stronger.

Description

technical field [0001] The invention relates to the evaluation technology of the voice quality of wireless communication, in particular to the evaluation method, device and system of the voice quality of wireless communication. Background technique [0002] For wireless communication systems, operators pay more attention to customer experience. The Speech Quality Evaluation System (PESQ, Perceptual Evaluation of Speech Quality) is currently the most mainstream speech evaluation algorithm. It takes into account various influencing factors perceived by users, such as codec distortion and errors, packet loss, delay, jitter and filtering, etc., and can objectively evaluate the quality of voice signals, thereby providing a fully quantifiable voice quality measurement method. The advantage of PESQ is that it is accurate and can evaluate the comprehensive results of multiple links such as wireless network, transmission network, switching, and routing. Its disadvantage is that the...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04L1/20
CPCH04W28/24H04W88/181
Inventor 赵春华眭鸿飞
Owner ZTE CORP
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