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Device and method for encoding LDPC code

A technology of LDPC codes and encoding methods, applied in the field of LDPC code encoding devices, can solve the problems of consuming hardware resources, complicated encoding process, and long encoding time, and achieve the effects of saving hardware resources, convenient encoding, and good regularity

Active Publication Date: 2010-02-03
SHENZHEN COSHIP ELECTRONICS CO LTD
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  • Abstract
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Problems solved by technology

[0027] The purpose of the embodiments of the present invention is to provide an LDPC code encoding device, which aims to solve the problem that the LDPC encoder encoding process in the prior art is complicated, and when the code length is long, the encoding time is too long and consumes hardware resources.

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  • Device and method for encoding LDPC code
  • Device and method for encoding LDPC code
  • Device and method for encoding LDPC code

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] In the embodiment of the present invention, the parity check matrix is ​​divided into blocks, wherein the parity check matrix after block has a Toeplitz structure, and the received information is encoded according to the parity check matrix after block.

[0047] figure 2 The structure of the LDPC code encoding device provided by the embodiment of the present invention is shown. Wherein, the storage unit in the embodiment of the present invention is a register as an example.

[0048] The encoded information source information receiving unit receives the input of encoded information source ...

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Abstract

The invention is applicable in the technical field of encoding, and provides a method and a device for encoding an LDPC code. The encoding device comprises a storage unit which is used for storing encoding information source information, a check encoding calculation unit which is used for calculating the encoding information source information of a register according the a check matrix with a Toeplitz structure and an exclusive OR unit which is used for outputting a calculated result after exclusive OR, wherein the check code unit is provided with the check matrix with the Toeplitz structure.The device and the method partition the check matrix, and encode the received information source information according to partitioned check matrix, wherein the partitioned check matrix is provided with the Toeplitz structure. In the embodiment of the invention, values of converse diagonal lines of the matrix are completely the same, contribute to adopt operation in a production line mode, and have excellent regularity; and a sparse quasi-cyclic matrix structure brings great convenience to encoding and saves hardware resources.

Description

technical field [0001] The invention belongs to the technical field of encoding, and in particular relates to an encoding device and method of an LDPC code. Background technique [0002] Low Density Parity Check Code (Low Density Parity Check Code, LDPC) is a kind of linear block code with a sparse parity check matrix proposed by Dr. Robert G. Gallager in 1963. It not only has good performance close to the Shannon limit, but also decodes With low complexity and flexible structure, it is a research hotspot in the field of channel coding in recent years. It has been widely used in deep space communication, optical fiber communication, satellite digital video and audio broadcasting and other fields. The LDPC code has become a strong competitor of the fourth generation communication system (4G), and the coding scheme based on the LDPC code has been adopted by the next generation satellite digital video broadcasting standard Digital Video Broadcasting (DVB)-S2. [0003] LDPC cod...

Claims

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Application Information

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IPC IPC(8): H03M13/11
Inventor 李辉亮
Owner SHENZHEN COSHIP ELECTRONICS CO LTD
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