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1. (WO2018196786) RATE MATCHING METHOD AND APPARATUS FOR POLAR CODES

Pub. No.:    WO/2018/196786    International Application No.:    PCT/CN2018/084461
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Thu Apr 26 01:59:59 CEST 2018
IPC: H04L 1/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: CHEN, Ying
陈莹
ZHANG, Gongzheng
张公正
ZHANG, Huazi
张华滋
ZHOU, Yue
周悦
QIAO, Yunfei
乔云飞
LUO, Hejia
罗禾佳
LI, Rong
李榕
WANG, Jun
王俊
Title: RATE MATCHING METHOD AND APPARATUS FOR POLAR CODES
Abstract:
The present application provides a rate matching method and apparatus for polar codes. The method comprises: a communication device obtains information to be encoded or information to be decoded; the communication device determines code rate R; the communication device determines a rate matching mode to be used according to the code rate and a code rate threshold as well as information bit number and an information bit number threshold, or the communication device determines the rate matching mode to be used according to the the code rate and the code rate threshold as well as a target code length and a target code length threshold, or the communication device determines the rate matching mode to be used according to the code rate and two code rate thresholds, the rate matching mode being a punching mode or a shortening mode; and the communication performs Polar code rate matching on the information to be encoded according to the determined rate matching mode, or performs Polar code rate de-matching on the information to be decoded. Therefore, the punching/shortening mode can be flexibly selected so that different encoding parameters have better performance to overcome performance loss caused in the punching/shortening process.