US 11,057,053 B2
Method and apparatus for wirelessly communicating over a noisy channel with a variable codeword length polar code to improve transmission capacity
Warren Jeffrey Gross, Cote-St-Luc (CA); Adam Christian Cavatassi, Mississauga (CA); Thibaud Tonnellier, Montreal (CA); and Yiqun Ge, Kanata (CA)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN); and The Royal Institution for the Advancement of Learning/McGill University, Montreal (CA)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN); and THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY, Montreal (CA)
Filed on Sep. 13, 2019, as Appl. No. 16/569,813.
Claims priority of provisional application 62/738,515, filed on Sep. 28, 2018.
Prior Publication US 2020/0106459 A1, Apr. 2, 2020
Int. Cl. H03M 13/13 (2006.01); H03M 13/00 (2006.01); H03M 13/11 (2006.01); H03M 13/39 (2006.01)
CPC H03M 13/13 (2013.01) [H03M 13/1131 (2013.01); H03M 13/39 (2013.01); H03M 13/616 (2013.01); H03M 13/6362 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining an input bit sequence containing N1+N2 bits, the input bit sequence including information bits and frozen bits, where N1 and N2 are different powers of a polar code kernel size;
polar encoding N1 bits of the input bit sequence with a first constituent polar encoder to produce a first set of N1 polar encoded bits;
polar encoding N2 bits of the input bit sequence with a second constituent polar encoder to produce a second set of N2 polar encoded bits;
after the encoding the N1 bits and the encoding the N2 bits, combining at least some of the first set of N1 polar encoded bits with at least some of the second set of N2 polar encoded bits with a first additional polarizing stage to produce a set of N1 combined bits; and
generating an asymmetric polar encoded codeword of length N1+N2 consisting of the set of N1 combined bits and the second set of N2 polar encoded bits.