US 12,463,664 B2
Polar code rate matching method and apparatus for satellite communication and terrestrial communication
Shengchen Dai, Hangzhou (CN); Rong Li, Hangzhou (CN); Jiajie Tong, Hangzhou (CN); Huazi Zhang, Hangzhou (CN); Xianbin Wang, Hangzhou (CN); Jun Wang, Hangzhou (CN); Wei Huang, Shanghai (CN); and Yourui Huangfu, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Dec. 13, 2022, as Appl. No. 18/065,479.
Application 18/065,479 is a continuation of application No. PCT/CN2021/099903, filed on Jun. 12, 2021.
Claims priority of application No. 202010554330.0 (CN), filed on Jun. 17, 2020.
Prior Publication US 2023/0113448 A1, Apr. 13, 2023
Int. Cl. H03M 13/13 (2006.01); H03M 13/00 (2006.01); H03M 13/27 (2006.01)
CPC H03M 13/13 (2013.01) [H03M 13/27 (2013.01); H03M 13/6362 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A polar code encoding rate matching method, comprising:
obtaining K to-be-encoded bits, a target code length M, and a mother code length N, wherein N=2n, and M, K, n, and N are positive integers;
performing polar code encoding on the K to-be-encoded bits based on the mother code length N to obtain an encoded bit sequence;
performing rate matching on the encoded bit sequence based on a rate matching sequence to obtain a rate matched sequence, wherein the rate matching sequence is a subsequence of a first sequence, the first sequence is a sequence 1, a sequence 2, or a sequence 3 in Appendix I, the sequence 1 comprises N2 polarized sub-channel sequence numbers starting from 0, the sequence 2 comprises N2/2 polarized sub-channel sequence numbers starting from 0, the sequence 3 comprises N2 different values, and N2 is greater than or equal to N; and
outputting the rate matched sequence.