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A voice quality evaluation method, network element and system

A technology for voice quality and quality assessment, applied in the field of communication, can solve the problems of inability to evaluate the communication quality of users, and unable to reflect the real perception of users.

Active Publication Date: 2016-08-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the above voice quality assessment, the inventors found that there are at least the following problems in the prior art: Since the voice quality of a call is only evaluated based on the transmission parameters reflecting the quality of the bearer network, the communication quality of the user cannot be evaluated from the perspective of the user. evaluations that do not reflect the true perception of the user

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  • A voice quality evaluation method, network element and system
  • A voice quality evaluation method, network element and system
  • A voice quality evaluation method, network element and system

Examples

Experimental program
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Embodiment 1

[0058] Embodiments of the present invention provide a voice quality assessment method, such as figure 1 As shown, the method may include:

[0059] 101. Acquire the voice code stream, and make statistics on the transmission parameters of each short-time evaluation period.

[0060] Wherein, the network element can obtain the voice code stream during the voice call, and the network element can be a network side device such as a base station controller (Base Station Controller, BSC), such as a service processing board, a code converter (TC) belonging to The device board is not limited in this embodiment of the present invention.

[0061] Among them, the transmission parameters fluctuate greatly during the call, so short-term evaluation can be used, that is, the evaluation period is the time when user perception is generated. For example, the short-term assessment period may be 8s, record the transmission parameters in every 8s, and calculate the short-term speech quality assessm...

Embodiment 2

[0068] Embodiments of the present invention provide a voice quality assessment method, such as figure 2 shown, including:

[0069] 201. The network element at the local end acquires the voice code stream, and counts the transmission parameters of each short-term evaluation period.

[0070] Wherein, the transmission parameters are mainly wireless link parameters, such as codec type, packet loss rate, switching frequency, and signaling frame congestion ratio. The statistical method of the transmission parameters can be:

[0071] Codec type: During the call establishment process, the user equipment (Use Equipment, UE) conducts service negotiation with the local network element, and according to the negotiation result, the local network element obtains the codec type. When the bearer format changes, the codec type will also change. Therefore, the local network element should update the codec type in time and record the change time.

[0072] Reverse packet loss rate: the revers...

Embodiment 3

[0123] An embodiment of the present invention provides a network element, such as Figure 5 As shown, it includes: a transmission statistics unit 31 , a source statistics unit 32 , and a calculation unit 33 .

[0124] The transmission statistics unit 31 is configured to obtain the voice code stream and make statistics on the transmission parameters of each short-term evaluation period.

[0125] The information source statistical unit 32 is configured to decode the speech code stream, and make statistics on the information source parameters according to the decoded speech code stream.

[0126] The calculation unit 33 is configured to calculate a comprehensive voice quality evaluation result according to the transmission parameters obtained statistically by the transmission statistical unit 31 and the information source parameters obtained statistically by the information source statistical unit 32 .

[0127] Further, such as Figure 6 As shown, the network element may further...

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Abstract

The embodiment of the invention discloses a speech quality evaluation method, network element and system, relates to the communication field, and solves the problem that the speech quality evaluation result cannot reflect user perception. The specific scheme is: obtain the voice code stream, and count the transmission parameters of each short-term evaluation period; decode the voice code stream, and calculate the source parameters according to the decoded voice code stream; Calculate the comprehensive speech quality evaluation result based on the source parameters. The invention is used for the assessment of voice quality.

Description

technical field [0001] The invention relates to the communication field, in particular to a voice quality evaluation method, network element and system. Background technique [0002] In the context of rapid growth in the wireless communication market, increasingly fierce competition, and increasingly complex market evolution, mature telecom operators, while concerned about the stable operation of their own networks, how to improve user satisfaction, reduce churn rate, and tap users The potential value and profit growth point of the company has become the key to protecting the competitive advantage and competing for the future market leadership. [0003] Most of the existing network evaluation systems are based on the Key Performance Indicator (KPI) analysis of network elements. The KPI analysis system obtains the number of dropped calls, call quality parameters, number / rate of successful SMS reception, and average sending time of SMS from the network server. , caller access...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L25/69H04W24/08
CPCH04M3/2236H04L41/5067H04W24/10
Inventor 卢春梅杨闳博谢云娟王海蛟
Owner HUAWEI TECH CO LTD
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