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公开(公告)号：US20250070801A1
公开(公告)日：2025-02-27
申请号：US18943944
申请日：2024-11-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin Wang , Huazi Zhang , Kangjian Qin , Jiajie Tong , Rong Li , Jun Wang
IPC: H03M13/13
Abstract: This application relates to the field of communication technologies, and discloses an encoding method, a decoding method, and an apparatus. The method includes: obtaining an information bit sequence; and encoding the information bit sequence based on a systematic polar code, to determine an encoded bit sequence, where the systematic polar code includes N first bit positions and N second bit positions that correspond to a polarization transformation matrix, the N second bit positions include a systematic bit position set A and a non-systematic bit position set MA, the N first bit positions include a frozen bit position set B and a non-frozen bit position set MB, and A is determined based on the information bit sequence.
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Patent Agency Ranking
公开(公告)号：US12113549B2
公开(公告)日：2024-10-08
申请号：US18176217
申请日：2023-02-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Xianbin Wang , Jiajie Tong , Shengchen Dai , Rong Li , Jun Wang
CPC classification number: H03M13/152 , H03M13/616 , H03M13/6362
Abstract: An encoding method and apparatus are provided, to propose a construction and encoding scheme of a BCH code. A code length and a code rate of an obtained BCH code are flexible, to satisfy a requirement of flexible channel encoding in wireless communication. The method includes determining a first encoding parameter based on a first BCH code, where the first BCH code is a to-be-coded BCH code, the first encoding parameter is a first code or a generator matrix of a first code, the first code has a code length of n and an information bit length of k, n is greater than 0, and k is greater than 0, and performing BCH encoding based on the first encoding parameter.
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公开(公告)号：US12074713B2
公开(公告)日：2024-08-27
申请号：US18067513
申请日：2022-12-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi Zhang , Jiajie Tong , Gongzheng Zhang , Shengchen Dai , Xianbin Wang , Rong Li , Jun Wang
IPC: H04L1/1812 , H03M13/00 , H03M13/03 , H03M13/13 , H04L1/00 , H04L1/1867
CPC classification number: H04L1/1819 , H03M13/033 , H03M13/13 , H03M13/611 , H03M13/6306 , H04L1/0057 , H04L1/1867
Abstract: Embodiments of this application disclose a example polar code encoding methods, example polar code decoding methods, and example apparatuses thereof. One example method in embodiments of this application includes generating an input vector, where the input vector includes T subblocks, a first information bit of a first subblock is obtained by replicating a second information bit of a second subblock, the first subblock and the second subblock are subblocks of the T subblocks, a sequence number of the first subblock is after a sequence number of the second subblock, and T is an integer greater than or equal to 2. Polar encoding can then be performed on the input vector to obtain an encoded bit.
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公开(公告)号：US12052097B2
公开(公告)日：2024-07-30
申请号：US18186912
申请日：2023-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin Wang , Shengchen Dai , Huazi Zhang , Jiajie Tong , Rong Li , Jun Wang
CPC classification number: H04L1/0057
Abstract: A coding method and apparatus are provided. The method includes: obtaining a to-be-coded sequence whose length is N, after an information bit is placed at an information bit position, wherein first preset bits are placed at shaping bit positions in a first position sequence, and shaping bit positions whose corresponding bits after polar coding belong to a same subcode of inner code belong to a same group; performing outer code coding on the to-be-coded sequence, to obtain a first outer code sequence whose length is N, based on which first outer code codeword bits corresponding to shaping bit position groups are obtained; obtaining a target outer code sequence based on the first outer code sequence and the first outer code codeword bits; and performing inner code coding on the target outer code sequence, to obtain and output a coded sequence. Probability amplitude shaping (PAS) coding latency can be reduced.
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公开(公告)号：US20230123058A1
公开(公告)日：2023-04-20
申请号：US18063569
申请日：2022-12-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen DAI , Huazi Zhang , Jiajie Tong , Xianbin Wang , Rong Li , Jun Wang , Wei Huang
Abstract: A polar encoding and decoding method and apparatus are provided. The method includes: obtaining K to-be-encoded bits; selecting K sequence numbers from a first sequence, where the to-be-encoded bits are placed on polar channels corresponding to the K sequence numbers; and performing polar code encoding on the K to-be-encoded bits to obtain encoded bits, where the first sequence includes sequence numbers of N polar channels, and the first sequence is one or a subsequence of a related sequence. This technical solution is applicable to a short message communication system of a BeiDou satellite. The method can effectively improve performance of the communication system and reduce complexity.
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公开(公告)号：US20180227951A1
公开(公告)日：2018-08-09
申请号：US15940996
申请日：2018-03-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhaoyang Zhang , Xianbin Wang , Yu Zhang , Yan Chen
IPC: H04W74/08
Abstract: The present invention discloses a terminal access method and an apparatus, to resolve a problem in an existing SCMA multi-terminal access mechanism that a conflict causes system performance degradation and may cause system retransmission. The method is as follows: determining, by a terminal, to enter a contention-based access phase; and determining, by the terminal during each transmission of binary data, a first signature according to a random number seed and a signature matrix, and mapping, according to the first signature, the binary data to a multi-dimensional symbol for transmission, where first signatures used during different transmissions of binary data are different.
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