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Voice coding and decoding device and method used for GSM-R communication system

A technology of GSM-R and communication systems, applied in the field of voice codec devices, can solve the problems of poor call quality of CIR2.0, and achieve the effects of low power consumption, strong anti-interference ability, and high coding compression ratio

Inactive Publication Date: 2016-10-12
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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  • Application Information

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Problems solved by technology

[0004] Due to the poor call quality of CIR2.0, a technical solution is urgently needed to solve the technical problem of poor call quality of CIR2.0

Method used

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  • Voice coding and decoding device and method used for GSM-R communication system
  • Voice coding and decoding device and method used for GSM-R communication system
  • Voice coding and decoding device and method used for GSM-R communication system

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Embodiment Construction

[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so that implementers of the present invention can fully understand how the present invention uses technical means to solve technical problems, and achieve the realization process of technical effects and according to the above-mentioned realization process The present invention is implemented concretely. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0039] figure 1 It is a schematic diagram of device operation according to an embodiment of the present invention, such as figure 1 shown. The invention provides a voice coding and decoding device for GSM-R communication system, which improves the advantage of CIR commun...

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Abstract

The invention discloses a voice coding and decoding device and method used for a GSM-R communication system. The voice coding and decoding device comprises a data decomposition module used for decomposing 240 16-bit PCM digital voice data, outputting 20 bytes if the data are coded at a rate of 5.3 Kbps, and outputting 24 bytes if the data are coded at the rate of 6.3 Kbps; a packaging module used for packaging and sending the data which are transmitted for outputting the 20 bytes when the data are coded at the rate of 5.3 Kbps or outputting the 24 bytes when the data are coded at the rate of 6.3 Kbps based on a data transmission requirement; a decoding module used for decoding the received 20 / 24 bytes data into 240 16-bit PCM digital voice data; and a playing module used for playing the coded data which are decoded into the PCM format digital voice by using a voice chip. The voice coding and decoding device and method used for the GSM-R communication system have an advantage of high call quality in CIR communication.

Description

technical field [0001] The invention relates to the technical field of speech codec, in particular to a speech codec device and method for a GSM-R communication system. Background technique [0002] Locomotive integrated wireless communication equipment (hereinafter referred to as: CIR) is playing an increasingly important role in the daily transportation command of national railways. [0003] With the development of railway transportation, CIR needs to constantly upgrade and transform to adapt to the new situation. The newly developed CIR3.0 will replace the original CIR2.0. There are three main reasons for this upgrade: first, the application department constantly puts forward new functional requirements for CIR, and relevant departments have successively released a series of supplementary technical specifications for CIR equipment and applications; The optimization and realization of less functions are subject to certain restrictions; third, due to the national planning...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08B61L15/00
CPCH04L65/1069H04L65/80H04L67/12B61L15/0027H04L65/75
Inventor 田秀臣熊道权张飞邹桂红
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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