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1. CN109361495 - Polar code construction method and device, electronic equipment and readable memory medium

Office China
Application Number 201811494300.4
Application Date 07.12.2018
Publication Number 109361495
Publication Date 19.02.2019
Grant Number 109361495
Grant Date 08.05.2020
Publication Kind B
IPC
H04L 1/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H03M 13/13
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
13Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
05using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
13Linear codes
CPC
H03M 13/13
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
13Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
05using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
13Linear codes
H04L 1/0057
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
004by using forward error control
0056Systems characterized by the type of code used
0057Block codes
Applicants BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
北京邮电大学
Inventors NIU KAI
牛凯
LI YAN
李燕
Agents 北京柏杉松知识产权代理事务所(普通合伙) 11413
北京柏杉松知识产权代理事务所(普通合伙) 11413
Title
(EN) Polar code construction method and device, electronic equipment and readable memory medium
(ZH) 一种极化码构造方法、装置、电子设备及可读存储介质
Abstract
(EN)
The embodiment of the invention provides a polar code construction method and device, electronic equipment and a readable memory medium and applies to the technical field of wireless communication. The method comprises the steps of computing weight hierarchies corresponding to polar channels in a 2N-code-length polar code according to the weight hierarchies corresponding to the polar channels in an N-code-length polar code, and a McWilliams identical equation; computing a uniform bound of each polar channel under an additive white Gaussian noise channel condition according to the weight hierarchies corresponding to the polar channels in the 2N-code-length polar code, and a uniform bound computing formula; determining an error probability threshold of each polar channel according to the uniform bounds and a preset measurement method; and for any 2N-code-length polar code with a bit rate of K/2N, when polar code construction is carried out, sorting the error probability thresholds in anascending mode, selecting the polar channels corresponding to the first K error probability thresholds for transmission of information bits, wherein the other polar channels are used for transmittingfreeze bits. According to the method, the device, the electronic equipment and the readable memory medium, polar code construction complexity can be reduced.

(ZH)
本发明实施例提供了一种极化码构造方法、装置、电子设备及可读存储介质,应用于无线通信技术领域,所述方法包括:根据N码长极化码中极化信道对应的极化重量谱以及麦克威廉姆斯恒等式,计算2N码长极化码中极化信道对应的极化重量谱;根据2N码长极化码中每个极化信道对应的极化重量谱以及一致界计算公式,计算在加性高斯白噪声信道条件下每个极化信道的一致界;根据一致界和预设度量方法,确定每个极化信道的差错概率阈值;对于码率为K/2N的任意2N码长极化码,在进行极化码构造时,对差错概率阈值进行从小到大排序,选取前K个差错概率阈值对应的极化信道用于传输信息比特,其余极化信道用于传输冻结比特。本发明可以降低极化码构造的复杂度。

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