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

An encoding method and technology of an encoding device are applied in the fields of decoding devices, Ploar encoding methods and encoding devices, and can solve problems such as performance loss of Polar codes.

Active Publication Date: 2018-08-03
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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However, in some cases, the performance of ...

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

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Embodiment Construction

[0099] figure 1 It is the basic process of wireless communication. At the sending end, the information source is sent out after source coding, channel coding, and digital modulation in sequence. At the receiving end, digital demodulation, channel decoding, and source decoding are used to output the sink in sequence. Polar codes can be used for channel coding and decoding. Since the code length of the original Polar code (mother code) is an integer power of 2, it is necessary to implement a Polar code with any code length through rate matching in practical applications. figure 1 As shown, rate matching is performed after channel encoding at the sending end to achieve any target code length, and rate matching is performed at the receiving end before channel decoding.

[0100] In some cases, a mother code length is usually determined according to agreed rules in a communication system. When the determined mother code length is greater than the target code length, rate matching c...

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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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Application Information

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IPC IPC(8): H04L1/00H03M13/13
CPCH03M13/13H04L1/0041H04L1/0045H04L1/0057H04L1/0067H04L1/0071H03M13/6362H03M13/618H04L1/0007H04L1/0009H04L1/0064H04L1/0068H04L1/0058H04L1/0008
Inventor 徐晨李榕张公正周悦黄凌晨乔云飞卡梅拉·卡佐葛屹群
Owner HUAWEI TECH CO LTD
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