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1. (WO2018202080) POLAR CODE ENCODING AND DECODING METHOD AND DEVICE

Pub. No.:    WO/2018/202080    International Application No.:    PCT/CN2018/085457
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 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
QIAO, Yunfei
乔云飞
WANG, Jun
王俊
ZHANG, Gongzheng
张公正
LUO, Hejia
罗禾佳
LI, Rong
李榕
HUANG, Lingchen
黄凌晨
Title: POLAR CODE ENCODING AND DECODING METHOD AND DEVICE
Abstract:
Embodiments of the present application provide a Polar code encoding and decoding method and device. The method comprises: an information bit set is acquired from a Polar code construction sequence table according to an information bit length and a target code length of information to be encoded, a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter being stored in the Polar code construction sequence table, the construction sequence being a sequence characterizing the reliability rank of polarized channels, and the encoding parameter comprising at least one of an aggregation level, a target code length, and a mother code length, or the encoding parameter being a maximum mother code length. The information to be encoded is encoded, according to the information to be encoded and the information bit set, by using a Polar code. Thus, the stored construction sequence is independent of the information bit length, which greatly reduces the storage overhead of the Polar code construction sequence table.