Method and system for adjusting voice code rate, terminal and network side device

A technology of network side equipment and voice code rate, applied in the field of voice code rate adjustment and network side equipment, can solve the problem that the adjustment of uplink and downlink code rate cannot be carried out concurrently.

Active Publication Date: 2017-11-28
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing technical problems, the embodiment of the present invention provides a voice code rate adjustment method,

Method used

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  • Method and system for adjusting voice code rate, terminal and network side device
  • Method and system for adjusting voice code rate, terminal and network side device
  • Method and system for adjusting voice code rate, terminal and network side device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0054] An embodiment of the present invention provides a method for adjusting a speech code rate. figure 2 It is a schematic flow chart of the method for adjusting the speech code rate of Embodiment 1 of the present invention; as figure 2 As shown, the method includes:

[0055] Step 201: The network side device obtains the channel transmission situation of the terminal based on the uplink data of the terminal.

[0056] Here, the network-side device obtains the channel transmission quality of the terminal based on the uplink data of the terminal, and specifically may evaluate the channel transmission quality of the terminal based on Channel Quality Indicator (CQI, Channel Quality Indicator) information in the uplink data.

[0057] Step 202: Determine the maximum transmission rate mode supported by the terminal based on the channel transmission conditions, and obtain a first rate mode corresponding to downlink data of the terminal.

[0058] Here, the network-side device can ...

Embodiment 2

[0067] The embodiment of the present invention also provides a voice code rate adjustment method. image 3 It is a schematic flow chart of the method for adjusting the speech code rate of the second embodiment of the present invention; as image 3 As shown, the method includes:

[0068] Step 301: The network side device obtains the channel transmission situation of the terminal based on the uplink data of the terminal.

[0069]Here, the network side device obtains the channel transmission quality of the terminal based on the uplink data of the terminal, and specifically may evaluate the channel transmission quality of the terminal based on the CQI information in the uplink data.

[0070] Step 302: Determine the maximum transmission rate mode supported by the terminal based on the channel transmission conditions, and obtain a first rate mode corresponding to downlink data of the terminal.

[0071] Here, the network-side device can obtain the rate set supported by the terminal...

Embodiment 3

[0083] The embodiment of the present invention also provides a voice code rate adjustment method, which is applied to a terminal. Figure 4 It is a schematic flow chart of the method for adjusting the speech code rate of the third embodiment of the present invention; as Figure 4 As shown, the method includes:

[0084] Step 401: The terminal receives downlink data sent by the network side device, and obtains a second rate mode in the downlink data.

[0085] Step 402: Judging whether the second rate mode is consistent with the rate mode of the currently sent uplink data, and when the second rate mode is inconsistent with the rate mode of the currently sent uplink data, adjust the encoding based on the second rate mode rate, and instruct the peer terminal to adjust the encoding rate.

[0086] In this embodiment, the terminal negotiates the supported rate mode when the initial voice session is established; based on the supported rate mode, the uplink data is sent to the network...

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Abstract

The embodiment of the invention discloses a method and a system for adjusting a voice code rate, a terminal and a network side device. The method comprises the steps of obtaining the channel transmission condition of a terminal based on uplink data of the terminal by the network side device; determining a maximum rate mode of transmission supported by the terminal based on the channel transmission condition and obtaining a first rate mode corresponding to the downlink data of the terminal; comparing the maximum rate mode with the first rate mode; when the maximum rate mode is not equal to the first rate mode, adjusting the rate mode of the to-be-transmitted uplink/downlink data based on the comparison result, and transmitting the uplink/downlink data; and indicating an opposite terminal/a local terminal to adjust the code rate based on the rate mode in the received data.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a voice coding rate adjustment method, system, terminal and network side equipment. Background technique [0002] Multimedia communication based on IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) adopts AMR, AMR-WB, EVS and other standard coding and decoding technologies to process voice. Each coding and decoding technology defines multiple rate modes, and higher rate modes can transmit More voice information, better restore the original sound. However, the transmission bandwidth of voice data is affected by factors such as network environment and coverage. In order to adapt to the time-varying wireless network environment, make up for the problem of insufficient network coverage in local areas, and ensure user experience during voice communication, multimedia terminals can dynamically adjust the encoding rate based on network conditions. In the prior art, onl...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0002H04L1/0025
Inventor 刘雅潘洁
Owner CHINA MOBILE COMM LTD RES INST
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