Realization method and system for improving voice quality in wireless communication network

A wireless communication network and voice quality technology, applied in wireless communication, network traffic/resource management, transmission system, etc., can solve problems such as voice quality deterioration, and achieve the effect of solving voice quality problems and improving voice quality

Inactive Publication Date: 2006-11-22
HUAWEI TECH CO LTD
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Problems solved by technology

[0018] It can also be seen from the above analysis that as long as the frames that can be confirmed as errors introduced before FMR2, including the error frames introduced by air interface transmission and wired transmission, will produce similar consequences of voice quality deterioration

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  • Realization method and system for improving voice quality in wireless communication network
  • Realization method and system for improving voice quality in wireless communication network
  • Realization method and system for improving voice quality in wireless communication network

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Embodiment Construction

[0055] The present invention aims at the present situation that the voice quality is degraded by turning on the TFO (TrFO) when the wireless environment is relatively poor. The voice quality is better than that when the TFO (TrFO) is turned off, thereby completely solving the problems existing in the prior art. Therefore, the implementation of the present invention enables the TFO (TrFO) function to be implemented in wireless communication networks as an important measure to improve the voice quality of wireless communication networks such as CDMA.

[0056] In the present invention, the uplink error frame received by the device side is identified, and when the downlink transmission is performed, for the frame identified as an error frame, the non-1 / 8 rate frame is used to notify the user terminal, for example, a full signaling frame is used to replace the frame. The frame is sent on the air interface, or processed in other ways that can make the user terminal (ie, mobile phone...

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Abstract

The invention relates to a method for improving the sound quality of wireless communication system and relative system. Wherein, said method comprises: first, at the network, informing the user terminal about the fixed error frame information non-1 / 8 speed frame caused by advanced transmission; then the user terminal according to said information processes smooth treatment on the received message, to obtain the treated sound message. The invention informs the former recognized error frame to the user terminal reliably at the descending direction, to make the user terminal able to recognize the error frame information in the transmission, to support the smooth treatment on received information frame on the user terminal, to obtain the sound message with better quality. The invention can confirm that the sound quality with open TFO (TrFO) is higher than the sound quality without TFO (TrFO), in same condition, to improve the sound quality in wireless communication network.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a technology for improving voice service quality in a wireless system. Background technique [0002] In the mobile communication network, in order to save the air interface resources in the system, a lower voice coding rate is adopted for the voice service, which makes the voice coding rate in the mobile network far lower than that in the fixed network. The voice quality of the network is lower than that of the fixed network. [0003] Factors affecting voice quality mainly include: voice coding method, voice codec times, delay or delay jitter, voice activation level, packet error rate or packet loss rate, terminals, etc. [0004] In the CDMA2000 (Code Division Multiple Access 2000) system, three speech coding methods are mainly used, including: 8K QCELP (code-excited linear predictive coding with a rate of 8K), 8K EVRC (enhanced variable rate coder) and 13K QCELP...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04L1/00
Inventor 曾勇军马朝斌
Owner HUAWEI TECH CO LTD
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