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Method, system and device for regulating rate of voice coder

A speech coder and rate technology, applied in the direction of network traffic/resource management, access restriction, electrical components, etc.

Inactive Publication Date: 2011-01-26
深圳市恒程汇文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 3GPP has not yet defined how to add the rate adaptation function of the speech coder to the new specification

Method used

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  • Method, system and device for regulating rate of voice coder
  • Method, system and device for regulating rate of voice coder
  • Method, system and device for regulating rate of voice coder

Examples

Experimental program
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Embodiment 1

[0045] Embodiment 1. In this embodiment, the VoIP of LTE uses AMR-NB. Now it is necessary to lower an AMR rate level for the downlink of the entire cell, and the AMR rate of the UE has not yet reached the minimum value. Among them, the use of CL-RNTI for PDCCH and PDSCH scrambling. see image 3 , the process of down-regulating the rate of the vocoder includes:

[0046] Step 301: The MAC layer of the eNB generates the MAC CE for the rate adaptation function of the speech coder according to the upper layer or its own judgment criteria. The format of the MAC CE is shown in Figure 2(b).

[0047]In this MAC CE, "R" represents a reserved bit, and "0" is used by default. "D" means to operate on the downlink AMR rate level. If it is "1", it means that the eNB has an operation on the downlink AMR, otherwise there is no operation. "U" means to operate on the uplink AMR rate level. If it is "1", it means that the eNB has an operation on the uplink AMR, otherwise there is no operation...

Embodiment 2

[0059] Embodiment 2. In this embodiment, VoIP of LTE uses AMR-WB, and now a downlink AMR rate level needs to be specified for a single UE, wherein C-RNTI is used to scramble PDCCH and PDSCH. see Figure 4 , the process of adjusting the speech encoder rate includes:

[0060] Step 401: The MAC layer of the eNB generates the MAC CE for the rate adaptation function of the speech coder according to the upper layer or its own judgment criteria. The format of the MAC CE is shown in Figure 2(a).

[0061] In this MAC CE, "R" represents a reserved bit, and "0" is used by default. "D" means to operate on the downlink AMR rate level. If it is "1", it means that the eNB has an operation on the downlink AMR, otherwise there is no operation. "U" means to operate on the uplink AMR rate level. If it is "1", it means that the eNB has an operation on the uplink AMR, otherwise there is no operation. "B" indicates whether the MAC CE is for AMR-WB or AMR-NB. If it is "1", it means that eNB has ...

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Abstract

The invention discloses a method for regulating the rate of a voice coder, which is used in a long term evolution (LTE) mobile communication system for enabling the LTE system to support the rate self-adapting function of the voice coder and to be compatible with the conventional system. In the method, a base station generates a first control element for regulating the rate of a voice coder, transmits the first control element and allows a terminal to regulate the rate of the voice coder according to the first control element. The invention also discloses a base station and a system for regulating the rate of the voice coder.

Description

technical field [0001] The present invention relates to the field of Long Term Evolution (LTE) mobile communication systems, in particular to a method, system and device for adjusting the rate of a speech coder. Background technique [0002] According to the proposal RP-090660 ("Vocoder rate adaptation for LTE") of the 3rd Generation Partnership Project (3GPP), LTE will soon add a voice coder rate adaptation function, that is, in the LTE system, the base station can Adjust the endpoint's vocoder rate according to network usage. But at present 3GPP has not yet defined how to add the speech encoder rate adaptive function in the new specification. [0003] According to 3GPP TS26.101 V8.0.0, the current LTE Voice over Internet Protocol (Voice over Internet Protocol, VoIP) can use one of various narrowband adaptive multi-rate (AMR-NB) encoders, and can also use broadband auto One of several encoders for Adaptive Multi-Rate (AMR-WB). Among them, the AMR-NB rate level is shown i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/18H04W48/12H04W92/10
Inventor 彭佛才韩翠红谭源春
Owner 深圳市恒程汇文化科技有限公司