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Speech data frame receiving method and terminal, wireless packet network gate and system

A wireless packet network, voice data technology, applied in the field of communication, can solve the problems of users unable to talk normally, unstable voice quality of VOIP network, voice quality degradation, etc., to improve the quality of VOIP voice communication, suppress delay jitter, and suppress jitter Effect

Inactive Publication Date: 2008-11-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the bearer of the wireless packet network, the voice data frame transmitted by VOIP technology needs to pass through the wireless packet network composed of the radio access network (RAN: RadioAccess Network) and the wireless packet network gateway (GW: GateWay), and the The IP backbone network between the wireless packet network on the receiving side and the wireless packet network on the receiving side, such as figure 2 As shown, the transmission in these networks will generally lead to delay jitter of 0ms to 50ms, making the voice quality of the VOIP network unstable, and sometimes the voice quality will drop sharply, resulting in the situation that users cannot communicate normally.

Method used

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  • Speech data frame receiving method and terminal, wireless packet network gate and system
  • Speech data frame receiving method and terminal, wireless packet network gate and system
  • Speech data frame receiving method and terminal, wireless packet network gate and system

Examples

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Embodiment 1

[0032] Embodiment 1. A method for receiving a voice data frame, the process is as follows image 3 shown, including:

[0033] A1. Start the token bucket that controls the voice data frame receiving queue; the activation conditions of the token bucket can be set according to the actual situation. The token bucket can be started when voice data is received, or after the received voice data frame is detected. The time interval between is unstable, and there is a deviation from the sending time interval, that is, the token bucket is started when delay jitter occurs;

[0034] A2. The token bucket issues tokens at a set time interval; in this paper, the time interval between the issuance of two adjacent tokens is called a token interval, in order to ensure the consistency of the voice rate between the receiving side and the sending side The token interval is generally consistent with the sending time interval of the sending side, which is 10 to 50 milliseconds, usually 20ms; of cou...

Embodiment 2

[0057] Embodiment two, a kind of receiving method of speech data frame, flow process is as follows Figure 5 shown, including:

[0058] B1, start the token bucket when the receiving queue receives the first voice data frame; this example adopts the condition of starting the token bucket with the arrival of the first voice data frame;

[0059] B2. Issue the first token at half the token interval after the start of the token bucket; different from the additional time delay naturally generated by the deferred issuance of the token in Embodiment 1, in this example, when the token bucket is started After that, an additional delay is automatically set. Of course, this is the delay jitter suppression range of the current token bucket. When the token interval is 20ms, it is appropriate to set this suppression range between 5 and 25ms. Considering The general jitter of the transmission network and the impact of additional delay on the real-time performance of voice, in this example, s...

Embodiment 3

[0069] Embodiment 3, a terminal, such as Figure 6 As shown, including receiving module 1, voice conversion module 2, token bucket control module 3;

[0070] The receiving module 1 receives the voice data frame sent by the network side, and sends a voice data frame to the voice conversion module 2 successively after receiving the token issued by the token bucket control module 3;

[0071] The token bucket control module 3 issues a token to the receiving module 1 at a set time interval;

[0072] Voice conversion module 2 analyzes and converts voice data frames received.

[0073] The terminal provided in this embodiment can apply the jitter suppression control strategy provided in Embodiment 1 or 2 to control the received voice data frames.

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Abstract

A method for receiving voice data frame applies token barrel to down send token on fixed time for controlling time interval of receiving voice data frame in order to ensure transmission quality of VOIP voice data frame in mobile packet network. The terminal radio packet network gateway and voice communication system for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for receiving voice data frames in a network-based voice stream (VOIP: VoiceOver Internet Protocol) technology, a corresponding terminal, a wireless packet network gateway, and a voice communication system. Background technique [0002] VOIP refers to the transmission of voice signals in the form of data packets in an IP network environment after compression and encapsulation in a certain format, also known as Internet telephony. With the development of communication technology, especially the introduction of Internet Protocol Multimedia Subsystem (IMS: Internet Protocol Multimedia Subsystem) technology, VOIP has become the development direction of future networks. [0003] The implementation of VOIP in the mobile network includes the following process: the terminal (UE: User Equipment) completes the call establishment request through the IMS domain, and the IMS d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/66H04Q7/38H04M11/06H04L45/28
Inventor 蒋铭
Owner HUAWEI TECH CO LTD
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