Polar code encoding method and device

A coding device and coding method technology, applied in the direction of coding, error detection coding, coding components, etc., can solve the problems that affect the performance improvement of Polar code coding and decoding, and the accuracy of polarized channels is not ideal.

Active Publication Date: 2018-01-16
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The reliability sorting of polarized channels plays an important role in the coding and decoding performance of Polar codes, but at this stage, the accuracy of t...

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  • Polar code encoding method and device
  • Polar code encoding method and device

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Embodiment Construction

[0032] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0033] The embodiment of the present application provides a Polar code encoding method and device. According to the reliability of the polarized channel, the reliability ranking is obtained, and the serial number of the polarized channel used to send the information bit is selected according to the reliability ranking. The serial number is encoded with a Polar code, and the embodiment of the present application can more accurately calculate the reliability of each sub-channel of the Polar code. The encoding method and device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] To facilitate the understanding of the embodiments of the present application, a brief introduction to the Polar code is given below.

[0035] The coding strategy of the Polar code uses a n...

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Abstract

The application relates to the technical field of communication, and discloses a Polar code encoding method and device in order to improve the calculating and sorting accuracy of the reliability of polarization channels. The method includes the following steps: acquiring a first sequence used to encode K to-be-encoded bits, wherein the first sequence contains the serial numbers of N polarization channels, the serial numbers of the N polarization channels are arranged in the first sequence according to the reliability of the N polarization channels, K is a positive integer, N is the length of the mother code of a Polar code, N is a positive integer power of 2, and K<=N; selecting the serial numbers of K polarization channels from the first sequence according to the reliability from high tolow; and placing the to-be-encoded bits according to the serial numbers of the K polarization channels selected, and carrying out Polar code encoding on the to-be-encoded bits.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a polar code encoding method and device. Background technique [0002] As the most basic wireless access technology, channel coding plays a vital role in ensuring the reliability of data transmission. In an existing wireless communication system, generally, Turbo codes, low density parity check codes (low density parity check, LDPC) and polarization (Polar) codes are used for channel coding. Turbo codes cannot support information transmission with too low or too high a code rate. For the transmission of short and medium packets, Turbo codes and LDPC codes are difficult to achieve ideal performance under limited code length due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes have high computational complexity in the process of encoding and decoding. Polar codes are theoretically p...

Claims

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Application Information

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IPC IPC(8): H04L1/00H03M13/13
CPCH03M13/13H04L1/0043H04L1/0057H04L1/0009H03M13/00H03M13/09H03M13/134H03M13/2906H04L1/0058H04L1/0061
Inventor 王俊张公正张华滋徐晨黄凌晨戴胜辰罗禾佳乔云飞李榕王坚陈莹尼基塔·波利扬斯基米哈伊尔·加米涅夫沈祖康皇甫幼睿杜颖钢
Owner HUAWEI TECH CO LTD
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