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公开(公告)号：US11088709B2
公开(公告)日：2021-08-10
申请号：US16569301
申请日：2019-09-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yourui Huangfu , Gongzheng Zhang , Chaolong Zhang , Rong Li , Jun Wang
Abstract: A polar code encoding method and apparatus are provided. The method includes: obtaining a basic sequence, where the basic sequence is a sequence obtained by sorting sequence numbers of polarized channels in descending order or ascending order of reliability, and a length of the basic sequence is L1; determining, based on a maximum encoding length L2 supported by a receiving device, a quantity M of segments of an information bit sequence whose length is N after encoding, where a quantity of bits in the information bit sequence before the encoding is K; and performing polar code encoding on the M segments based on the basic sequence. According to the polar code encoding method, during polar code construction, an encoding device needs to know only a reliability order of min(N/M, L1) polarized channels. In this way, storage overheads of a nested sequence can be effectively reduced, and online computing complexity can be reduced.
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32.发明授权公开(公告)号：US10742235B2
公开(公告)日：2020-08-11
申请号：US16566331
申请日：2019-09-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Jin , Wen Tong , Jun Wang , Aleksandr Aleksandrovich Petiushko , Ivan Leonidovich Mazurenko , Chaolong Zhang
Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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