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Telecommunication network speech quality evaluating method

A technology of call quality and telecommunication network, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve problems such as high complexity, poor accuracy rate, and difficult voice signal-to-noise ratio, so as to avoid influence and achieve accurate evaluation results , the effect of fast evaluation

Inactive Publication Date: 2005-02-16
XINTAI COMM TECH CO LTD GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They are all built on the basis of measuring the mean square error, which is characterized by a wide frequency range of speech, so it is difficult to directly analyze the speech signal-to-noise ratio and the accuracy is poor

Method used

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  • Telecommunication network speech quality evaluating method
  • Telecommunication network speech quality evaluating method
  • Telecommunication network speech quality evaluating method

Examples

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with accompanying drawing (embodiment):

[0014] refer to figure 1 ~ Fig. 5, the present invention comprises whole province data network 1, provincial central monitoring workstation 2, central database server 3 (if the data processing requirement is not high, can consider to merge with central monitoring workstation), tandem bureau TMSC test sub-control terminal 4 , printer 5, GSM pullout tester 6, prefecture and city MSC test sub-control terminal 7, etc.

[0015] When starting to test the call quality of the telecommunication network, firstly, the dial tester at one end of the telecommunication network initiates a voice call to another dial tester at the opposite end of the network, and the dial tester at the opposite end picks up the phone after receiving the call. The dial tester at the local end starts to transmit the handshake protocol command, shakes hands with the peer device and inst...

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Abstract

The method includes the public switched telephone network, the local MCS test sub-control terminal and the tandem office TMSC test sub-control terminal. The characteristics are that the GSM dialing tester is installed at each end of the network to be tested. Comparing with other methods for evaluating the speech quality of the telecom network, the invented method provides the features of strong autoamtic testing functions, accurate evaluating results and fast speed.

Description

technical field [0001] The invention relates to a method, in particular to a method for evaluating call quality of a telecommunication network. Background technique [0002] In telecommunication network optimization, it is a very important issue to evaluate the call quality of telecommunication network. How to evaluate the call quality of the telecommunication network has also become an important research topic in the field of telecommunication evaluation. Many methods have been proposed for this over the years. In view of the absence of a better evaluation method, a subjective evaluation method has been used now. The subjective evaluation method is the subjective evaluation grade (Subjective Opinion Scale), or the average evaluation score (Mean OpinionScore, abbreviated as MOS). The MOS score adopts a five-level scoring standard. The method is that dozens of listeners audition and score in the same channel environment, and then perform statistical processing on the scores...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 周爱华周友仁李红军蓝奉宇周海波
Owner XINTAI COMM TECH CO LTD GUANGZHOU
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