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1. (WO2018219195) DECODING METHOD AND DECODER

Pub. No.:    WO/2018/219195    International Application No.:    PCT/CN2018/088113
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri May 25 01:59:59 CEST 2018
IPC: H03M 13/13
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHANG, Tao
张涛
ZHENG, Zheng
郑征
DU, Zheng
杜政
Title: DECODING METHOD AND DECODER
Abstract:
The present application relates to the field of communications, and in particular, to a decoding method and a decoder. The decoding method comprises: calculating a LLR of a first bit group in a code block according to a path selection result of a second bit group in a currently coded code block; the path selection result comprises L paths; calculating BM of the first bit group according to the LLR; for each of the L paths, selecting at least L BMs; determining a PM of the first bit group according to a path selection result of at least L BMs and a bit group before the first bit group; and determining the path selection result of the first bit group according to the PM. PM sorting is not required during the entire decoding process of the present application. When performing the decoding of the first bit group, it is only necessary to obtain the path selection result of the previous bit group in the PM calculation phase of the current bit group. Thus, in the decoding process, other stages before the PM calculation stage can be parallelized, thereby greatly reducing the decoding delay and improving the decoding efficiency.