US 12,316,348 B2
Polar code segment encoding method and related apparatus
Yan Chen, Shanghai (CN); Guanjun Ni, Shanghai (CN); Yuhong Zhu, Shanghai (CN); Bingguang Peng, Shanghai (CN); Shangbang Sun, Shanghai (CN); Jingjing Yao, Shanghai (CN); and Rong Wang, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 18/552,626
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
PCT Filed Mar. 28, 2022, PCT No. PCT/CN2022/083380
§ 371(c)(1), (2) Date Sep. 26, 2023,
PCT Pub. No. WO2022/206675, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110344923.9 (CN), filed on Mar. 31, 2021.
Prior Publication US 2024/0214005 A1, Jun. 27, 2024
Int. Cl. H03M 13/13 (2006.01); H03M 13/00 (2006.01)
CPC H03M 13/13 (2013.01) [H03M 13/611 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polar code segment encoding method, comprising:
determining, based on an information bit quantity of a first information bit sequence and a first code rate, a target code length for polar code encoding;
determining an initial code length based on the target code length, wherein the initial code length is an integer multiple of a smallest segment code length;
dividing the first information bit sequence into S segments of information bit sequences based on the first code rate and the initial code length, wherein the S segments of information bit sequences correspond to S encoded segments, wherein a segment code length of an ith segment in the S segments is greater than or equal to a segment code length of an (i+1)th segment in the S segments, a segment code length of an Sth segment in the S segments is less than a largest segment code length, a sum of segment code lengths of the S segments is equal to the initial code length, and a segment code length of a segment is a power of 2;
determining that the initial code length is different from the target code length;
performing rate matching on the S segments in a process of performing polar code encoding on the S segments of information bit sequences to obtain an encoded bit sequence, wherein the sum of the segment code lengths of the S segments is the target code length after the rate matching, and wherein a total bit quantity for the rate matching of the S segments is a difference between the initial code length and the target code length; and
digitally modulating and sending the encoded bit sequence through a wireless channel.