Polar coding method and coding device, and Polar decoding method and decoding device

Abstract

The embodiment of the invention provides a Polar coding method and coding device. The coding method comprises the following steps: dividing an information bit sequence to be encoded into a plurality of segments when the coding parameter satisfies a preset segmentation condition; and performing Polar coding on the plurality of segments to obtain a plurality of encoded bit sequences. By adoption ofthe segmentation coding method, the number of times of repeated rate matching schemes under certain conditions can be reduced, and the performance loss caused by repetition can be reduced.

Description

technical field [0001] The embodiment of the present invention relates to the communication field, and more specifically, a Ploar encoding method and encoding device, a decoding method and a decoding device. Background technique [0002] Communication systems usually use channel coding to improve the reliability of data transmission and ensure the quality of communication. The polar codes (Polar codes) proposed by Turkish professor Arikan are the first good codes that can reach Shannon capacity and have low encoding and decoding complexity. Polar code is a linear block code whose coding matrix is ​​G N , the encoding process is in Is a binary row vector with a length of N (that is, the mother code length); G N is an N×N matrix, and defined as log 2 N matrix F 2 The Kronecker product of . [0003] the above matrix [0004] During the encoding process of Polar code, Some of the bits are used to carry information, called information bits, and the index set of th...

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Problems solved by technology

However, in some cases, the performance of the repeated Polar code will cause a certain loss

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