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1. (WO2018045849) POLAR CODE RETRANSMISSION METHOD AND DEVICE

Pub. No.:    WO/2018/045849    International Application No.:    PCT/CN2017/095827
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Fri Aug 04 01:59:59 CEST 2017
IPC: H04L 1/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LI, Rong
李榕
WANG, Guijie
王桂杰
ZHANG, Gongzheng
张公正
WANG, Jian
王坚
WANG, Jun
王俊
Title: POLAR CODE RETRANSMISSION METHOD AND DEVICE
Abstract:
Provided in an embodiment of the present application are a Polar code retransmission method and device, which can reduce retransmission complexity and improve transmission performance. The method comprises: determining a first polar channel sequence consisting of N polar channels and a reliability of each polar channel in the N polar channels; according to a coding parameter of the mth data transmission, determining the number of information bits Km required by the mth data transmission, wherein the coding parameter comprises at least one of the number of information bits and a code rate; determining Km polar channels with the highest reliability in the first polar channel sequence; determining Km information bits according to positions of the information bits transmitted in the previous m-1 data transmissions, in the first polar channel sequence; and mapping the Km information bits onto the Km polar channels for transmission.