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1. (WO2018127041) RATE MATCHING METHOD, CODING APPARATUS, AND COMMUNICATION APPARATUS

Pub. No.:    WO/2018/127041    International Application No.:    PCT/CN2018/070056
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Wed Jan 03 00:59:59 CET 2018
IPC: H04L 1/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHANG, Gongzheng
张公正
LUO, Hejia
罗禾佳
LI, Rong
李榕
CHEN, Ying
陈莹
QIAO, Yunfei
乔云飞
Title: RATE MATCHING METHOD, CODING APPARATUS, AND COMMUNICATION APPARATUS
Abstract:
Provided in the embodiments of the present application are a rate matching method, a coding and decoding apparatus, and a communication apparatus. The method comprises: acquiring an information bit sequence and a target code length M of a polar code; when the target code length M meets a preset condition, using a polar code of a first parent code length N1 to encode the information bit sequence, and outputting a first coded bit sequence, N1 being less than or equal to M, and N1 being an integer power of 2; repeating at least some of the bits of the first coded bit sequence to obtain a first target polar code of length M; when the target code length M does not meet the preset condition, using a polar code of a second parent code length N2 to encode the information bit sequence, and outputting a second coded bit sequence, N2 being greater than or equal to M, and N2 being an integer power of 2; shortening or puncturing the second coded sequence to obtain a second target polar code of length M. When coding gain and loss are low, using a rate matching solution based on repetition reduces the complexity of encoding and decoding.