公开(公告)号：US20220123862A1

公开(公告)日：2022-04-21

申请号：US17562743

申请日：2021-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhaoyang ZHANG ,  Yunmei ZHANG ,  Deng ZHENG ,  Kangjian QIN ,  Tianhang YU

IPC: H04L1/00 ,  H04L1/18

Abstract: This application discloses a polar code retransmission method and apparatus, to achieve an encoding gain. The method includes: when decoding of the first code word fails, performing polar code encoding on K first to-be-encoded bits and K′ second to-be-encoded bits based on a second information bit position set to obtain a second code word, where elements in the second information bit position set are used to indicate positions of the to-be-encoded bits, and an element that is in the second information bit position set and that is used to indicate a position of a first to-be-encoded bit is a sum of N and an element that is in the first information bit position set and that is used to indicate the position of the first to-be-encoded bit; and sending a subcode in the second code word other than the first code word to the decoding device.