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A method for coding and decoding of linear code expansion and data transmission method and device

A technology for expanding encoding and decoding methods, applied in digital transmission systems, using linear codes for error correction/detection, transmission systems, etc., can solve the problems that the code rate cannot be further improved, and the error correction effect is not very ideal, so as to improve the code rate. High efficiency, good error correction effect, and the effect of improving adaptability

Inactive Publication Date: 2007-05-16
HUAWEI TECH CO LTD
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Problems solved by technology

[0008] The code rate of the linear code in the prior art is k / n, and the code rate cannot be further increased, so the error correction effect is not very ideal

Method used

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  • A method for coding and decoding of linear code expansion and data transmission method and device
  • A method for coding and decoding of linear code expansion and data transmission method and device
  • A method for coding and decoding of linear code expansion and data transmission method and device

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Embodiment Construction

[0028] The invention provides a linear code extension encoding and decoding method, a data transmission method and a device, which are used to increase the code rate of the linear code, so as to achieve a better error correction effect.

[0029] Referring to Fig. 1, the embodiment of linear code extension encoding method of the present invention comprises:

[0030] 101. Obtain information bits;

[0031] 102. Set some of the information bits as identification bits;

[0032] 103. Use a preset encoding algorithm to encode information bits other than identification bits;

[0033] 104. Process the coded symbol according to the value of the identification bit.

[0034] The linear code extension encoding method of the present invention is described in detail below. In the following description, take setting one identification bit as an example, the binary encoding method, and correspondingly, the processing operation performed on the encoded code element is a bitwise inversion oper...

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Abstract

The disclosed data transmission method for linear code comprises: obtaining information to set some bits as label; with preset coding algorithm, coding without the label; then, processing coded code elements according to label value, and sending processed code element to decoding end.; with preset decoding algorithm, analyzing received code; if failure, converting code, and decoding till success; determining label value according to conversion way; adding label into the temporary result for final decoded result. This invention can obtain high code rate and better correction effect.

Description

technical field [0001] The invention relates to the communication field, in particular to a linear code extension encoding and decoding method and a data transmission method and device. Background technique [0002] A large number of error-correcting codes are used in digital communication systems. By using error-correcting codes, transmission signals can better resist the influence of various channel impairments such as noise, interference, and fading. [0003] Cyclic codes among linear codes are often used as error-correcting codes. Cyclic codes include binary BCH codes, multi-ary RS codes and their various extension codes. The indicators to measure the quality of error-correcting codes include error-correcting number t and code rate k / n, etc. [0004] A linear code extension encoding and decoding method in the prior art is: [0005] 1. The encoding end takes k information bits; [0006] 2. Encoding the k information bits according to a preset encoding algorithm to obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/15H03M13/13H04L1/00
Inventor 刘建华
Owner HUAWEI TECH CO LTD
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