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11.发明公开公开(公告)号：US20230421291A1
公开(公告)日：2023-12-28
申请号：US18464337
申请日：2023-09-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin Wang , Yuan Li , Huazi Zhang , Rong Li , Jun Wang
IPC: H04L1/00
CPC classification number: H04L1/0057
Abstract: This application provides a polar encoding and modulation method and apparatus, and a demodulation and decoding method and apparatus. In the polar encoding and modulation method, a probability shaping technology is combined with a polar code, to group to-be-encoded bit sequences, and probability shaping is performed on a group of bit sequences. Modulation and mapping are directly performed on all bit sequences obtained through probability shaping, and polar transformation is performed on some bit sequences obtained through probability shaping together with other groups of bit sequences for modulation and mapping. In the demodulation and decoding method, a modulation symbol sequence is demodulated and decoded, a part of obtained bit sequence is directly mapped to obtain a second bit sequence, and the other part is continuously decoded to obtain a first bit sequence.
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公开(公告)号：US11018827B2
公开(公告)日：2021-05-25
申请号：US16200355
申请日：2018-11-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaoyang Zhang , Xianbin Wang , Yu Zhang , Yiqun Wu
Abstract: Embodiments of this application provide an information transmission method and an apparatus, to improve transmission reliability. The method includes: obtaining, by a terminal device, a to-be-sent pilot sequence, where the to-be-sent pilot sequence is a Reed-Muller sequence; and sending, by the terminal device, the to-be-sent pilot sequence.
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公开(公告)号：US12224854B2
公开(公告)日：2025-02-11
申请号：US18467782
申请日：2023-09-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi Zhang , Rong Li , Jiajie Tong , Xianbin Wang , Jun Wang , Wen Tong
Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.
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公开(公告)号：US20240333576A1
公开(公告)日：2024-10-03
申请号：US18732486
申请日：2024-06-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie Tong , Xianbin Wang , Huazi Zhang , Rong Li , Jun Wang
CPC classification number: H04L27/366 , H04L27/3444 , H04L27/361
Abstract: A communication method and apparatus is provided so that a fading channel can implement a good error correction capability. This helps improve information transmission reliability. The method includes: a transmit end device determines, based on N bit sets, a first sequence and a second sequence that are obtained through quadrature amplitude modulation QAM. The first sequence includes N in-phase components, and the second sequence includes N quadrature components; or the first sequence includes N quadrature components, and the second sequence includes N in-phase components, where N is an integer greater than or equal to 2. Then, the transmit end device performs interleaving processing on the first sequence, to obtain a third sequence. Then, the transmit end device sends, to a receive end device, a symbol sequence determined based on the second sequence and the third sequence. The symbol sequence includes N QAM symbols.
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公开(公告)号：US20240333427A1
公开(公告)日：2024-10-03
申请号：US18741363
申请日：2024-06-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shengchen Dai , Huazi Zhang , Xianbin Wang , Rong Li , Jun Wang
IPC: H04L1/00 , H03M13/13 , H04L1/1812
CPC classification number: H04L1/0067 , H03M13/13 , H04L1/1812
Abstract: This application provides a rate matching method, including: A transmitter obtains a to-be-coded bit sequence; the transmitter performs polar coding on the to-be-coded bit sequence, to obtain a first bit sequence, where a length of the first bit sequence is N; the transmitter performs first rate matching on the first bit sequence, to obtain a second bit sequence, where a length of the second bit sequence is E1; the transmitter sends the second bit sequence; the transmitter performs polar coding based on the to-be-coded bit sequence, to obtain a third bit sequence, where a length of the third bit sequence is 2*N; the transmitter performs second rate matching on the third bit sequence, to obtain a fourth bit sequence, and the transmitter sends the fourth bit sequence, where N, E1 are positive integers.
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Patent Agency Ranking
公开(公告)号：US20230387939A1
公开(公告)日：2023-11-30
申请号：US18366757
申请日：2023-08-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Wen Tong , Jun Wang , Rong Li , Jiajie Tong , Xianbin Wang
IPC: H03M13/11
CPC classification number: H03M13/118 , H03M13/1174
Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.
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公开(公告)号：US11777532B2
公开(公告)日：2023-10-03
申请号：US17587425
申请日：2022-01-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Xianbin Wang , Lingchen Huang , Rong Li , Yunfei Qiao
IPC: H03M13/00
CPC classification number: H03M13/616
Abstract: An encoding method includes, when a first code rate K/Nmax is less than or equal to a code rate threshold Rt, reading a first matrix from a preset code table based on a second matrix. The second matrix includes a matrix that is read from the preset code table and that corresponds to a maximum supported code length Nmax and Rt, where K is an integer and N is an integer. The method also includes reading K rows and (N−K) columns starting from a preset first location in the first matrix to obtain a third matrix. The method further includes adding a unit matrix with K rows and K columns to a left side of the third matrix to obtain a generator matrix of an (N, K) linear block code. K rows and (Nmax−Nmax×Rt) columns of the second matrix in a first direction are consistent with K rows and (Nmax−Nmax×Rt) columns of the first matrix in a second direction.
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公开(公告)号：US20230308117A1
公开(公告)日：2023-09-28
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 o, and k is greater than o, and performing BCH encoding based on the first encoding parameter.
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公开(公告)号：US20230283406A1
公开(公告)日：2023-09-07
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
IPC: H04L1/00
CPC classification number: H04L1/0057
Abstract: This application provides a coding method and apparatus. The method includes: obtaining a to-be-coded sequence whose length is N, where the to-be-coded sequence is obtained after an information bit is placed at an information bit position, a frozen bit is placed at a frozen bit position, and first preset bits are placed at a plurality of shaping bit positions in a first position sequence, bits corresponding to the plurality of shaping bit positions after polar coding belong to a plurality of different subcodes of inner code, and shaping bit positions whose corresponding bits after polar coding belong to a same subcode of inner code belong to a same group of shaping bit positions (S501); performing outer code coding on the to-be-coded sequence, to obtain a first outer code sequence whose length is N (S502); obtaining, in parallel based on the first outer code sequence, a plurality of first outer code codeword bits corresponding to a plurality of shaping bit position groups (S503); obtaining a target outer code sequence based on the first outer code sequence and the plurality of first outer code codeword bits (S504); and performing inner code coding on the target outer code sequence, to obtain and output a coded sequence (S505). PAS coding latency can be reduced.
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公开(公告)号：US20250088311A1
公开(公告)日：2025-03-13
申请号：US18957049
申请日：2024-11-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xianbin Wang , Huazi Zhang , Kangjian Qin , Jiajie Tong , Rong Li , Jun Wang
IPC: H04L1/00
Abstract: This application relates to the field of communication technologies, and discloses an encoding method, a decoding method, and an apparatus. The method includes: performing polar encoding on an information bit sequence based on a target code length E, to determine an encoded bit sequence, where the polar encoding includes N first bit positions and N second bit positions that correspond to a polarization transformation matrix; the N second bit positions include a system bit position set A and a non-system bit position set MA, and the N first bit positions include a frozen bit position set B and a non-frozen bit position set MB.
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