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

A coding method and coding technology, applied in coding, coding components, adjusting channel coding, etc., can solve problems such as performance loss of Polar codes

Active Publication Date: 2018-10-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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

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Embodiment Construction

[0102] 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.

[0103] 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 a coding device. The coding method comprises the following steps: when coding parameters meet preset segmentation conditions, dividing a to-be-coded information bit sequence into multiple segments; and respectively carrying out Polar coding on multiple segments, and obtaining multiple coded bit sequences. The segmenting and codingmethod can reduce number of use of a repeated rate matching scheme under certain conditions and reduce performance loss caused by repetition.

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 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/13
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