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Adaptive multi-rate speech transmitting format configurating method

An adaptive multi-rate, transmission format technology, applied in transmission systems, digital transmission systems, selection devices, etc., can solve problems such as inability to transmit voice, and achieve the effect of improving the success rate

Active Publication Date: 2007-01-03
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can ensure the successful access of other services other than the AMR voice service, when the services other than the AMR voice service are released and there are still AMR voice services, the number of AMR voice transmission formats cannot be increased, which will cause Under the condition that the UE's transmission channel capability allows, it is impossible to use more AMR voice rates to transmit voice

Method used

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  • Adaptive multi-rate speech transmitting format configurating method
  • Adaptive multi-rate speech transmitting format configurating method
  • Adaptive multi-rate speech transmitting format configurating method

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Embodiment Construction

[0047] figure 2 A schematic diagram of the configuration of the AMR voice transmission format provided by the present invention, such as figure 2 As shown, when establishing an AMR voice service, the RNC configures the currently supported uplink and downlink AMR voice rates according to the current UE transmission channel capability and the AMR voice rate assigned by the RAB message sent by the CN, and at the same time configures the corresponding AMR voice rate on the Uu interface. Voice transmission format. Afterwards, when the RNC detects that the transmission channel capability of the current UE is limited, it reduces the number of AMR voice rates currently supported, and after correspondingly modifying the AMR voice transmission format of the Uu interface, sends the AMR voice transmission format to the UE; when the RNC When it is detected that the transmission channel capability of the current UE is improved, the number of currently supported AMR voice rates is increas...

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Abstract

A method for configuring transmission format of adaptive multirate voice includes configuring uplink and downlink AMR voice rate supported currently and configuring transmission format corresponding to AMR voice at Uu interface by RNC according to current channel ability and AMR voice rate assigned by RAB message sent by CN when AMR voice service is set up, then decreasing AMR voice transmission format supported currently by RNC when UE transmission ability is limited and increasing AMR voice transmission format supported current by RNC when UE transmission ability is raised.

Description

technical field [0001] The invention relates to the field of self-adaptive multi-rate speech transmission, in particular to a method for configuring an adaptive multi-rate speech transmission format. Background technique [0002] At present, in order to save transmission frequency band resources while maintaining high-efficiency voice communication, the Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Address) system adopts the principle based on Algebraic Code Excited Linear Prediction (ACELP, Algebraic Code Excited Linear Prediction) Adaptive Multi-Rate (AMR, Adaptive Multi-Rate) speech coding technology. The principle of ACELP is: Since the feature information in the digital voice signal includes both some voice feature parameters and part of the waveform coding information, the voice signal can be re-synthesized using these feature information. By controlling the number of feature information to be extracted and selecting the feature inform...

Claims

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Application Information

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IPC IPC(8): H04Q7/30H04W28/22H04L1/00H04W72/08
Inventor 任学亮黄凯涛
Owner XFUSION DIGITAL TECH CO LTD