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Coding method and device for data communication

A coding method and data communication technology, applied in low-delay coding technology and devices, and in the field of data communication, can solve the problems that high coding gain and low delay can not be guaranteed at the same time, and achieve good coding gain effect, fast convergence speed, and improved The effect of decoding speed

Pending Publication Date: 2021-10-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a coding method and device for data communication, which solves the problem that high coding gain and low delay cannot be guaranteed at the same time in the prior art

Method used

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  • Coding method and device for data communication
  • Coding method and device for data communication
  • Coding method and device for data communication

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Embodiment Construction

[0148] Before explaining the embodiment of the present application in detail, the application scenario of the embodiment of the present application will be described first. figure 1 It shows the structural block diagram of the communication system. At the sending end, the information source provides the data stream to be sent; the encoder receives the data stream and encodes it, and encodes the codeword information obtained by combining the parity bit and the information bit for transmission. After channel transmission, it reaches the receiving end; after receiving the wrong codeword information due to noise or other damage in the channel, the receiving end decodes it through a decoder to restore the original data and sends it to the sink. Among them, the encoding method provided by this application is applied to figure 1 The encoder shown in is a very important link in the communication system.

[0149] The data sent from the source will pass through the encoder using this e...

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Abstract

The invention discloses a coding method for data communication, and can be applied to multiple scenes such as metropolitan area, backbone network, data center interconnection and the like. The method comprises the following steps: forming a first code word, wherein the first code word comprises n mirror image bits and n bits to be transmitted, and selecting the n mirror image bits from the bits to be transmitted of m source code words, wherein the source code word is a code word formed before the first code word, n and m are positive integers, and n is greater than m; and sending out the n bits to be transmitted of the first code word, wherein the bits in the first code word are protected by the code words generated at different moments, and the coding gain effect is better; moreover, the bits in the code words are protected by different numbers of code words, and the bits protected by more code words have higher convergence speed, so the decoding speed of the decoder can be improved, and the time delay is reduced.

Description

technical field [0001] The present application relates to a coding technology, and in particular to a low-latency coding technology and device for data communication. Background technique [0002] A communication system usually sends data at the transmitter and transmits it to the receiver through a communication channel, thereby realizing a large amount of information transmission. For example, communication channels include fiber optic transmission, wireless, cable, and the like. However, when the transmitted signal passes through the communication channel, the noise in the channel or the noise of the transceiver device will be superimposed, resulting in an error in receiving the signal at the receiving end. In order to restore the original signal sent by the sender from the wrongly received signal, it is a common practice to use forward error correction coding (Forward Error Correction, FEC). [0003] FEC uses the information bits to be transmitted to generate check bit...

Claims

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Application Information

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IPC IPC(8): H03M13/27H03M13/29H04L1/00
CPCH03M13/2703H03M13/29H04L1/0041H04L1/0064H04L1/0066H04L1/0071H03M13/2906H03M13/152H03M13/1515H03M13/19H03M13/2927H03M13/3746H03M13/271H04L1/0046H04L1/0047H04L1/201
Inventor 马会肖梁伟光黄沁辉黄科超
Owner HUAWEI TECH CO LTD
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