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公开(公告)号：US20240243847A1
公开(公告)日：2024-07-18
申请号：US18619599
申请日：2024-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kangjian QIN , Rong LI , Huazi ZHANG , Xianbin WANG , Shengchen DAI , Jun WANG
IPC: H04L1/08 , H04L1/06 , H04L1/1607
CPC classification number: H04L1/08 , H04L1/0643 , H04L1/1642
Abstract: This application discloses a retransmission method and an apparatus. The method includes: obtaining a first bit sequence and a number E of to-be-retransmitted bits, performing second channel encoding based on the first bit sequence to obtain a second bit sequence, and performing retransmission based on the second bit sequence. The first bit sequence is obtained by performing first channel encoding based on K information bits, a length of the first bit sequence is N, N, E, and K are all integers greater than or equal to 1, and the second bit sequence includes the E to-be-retransmitted bits. According to the method, a code length can be flexibly extended based on different numbers E of to-be-retransmitted bits.
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公开(公告)号：US20230124664A1
公开(公告)日：2023-04-20
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 , 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 arc 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：US20230113448A1
公开(公告)日：2023-04-13
申请号：US18065479
申请日：2022-12-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen DAI , Rong LI , Jiajie TONG , Huazi ZHANG , Xianbin WANG , Jun WANG , Wei HUANG , Yourui HUANGFU
Abstract: The present disclosure relates to polar code rate matching methods, apparatuses, and mediums. One example method includes obtaining K to-be-coded bits and a mother code length N, where N=2n performing polar code encoding on the K to-be-coded bits based on the mother code length N to obtain an encoded bit sequence, performing rate matching on the polar-encoded bit sequence based on a rate matching sequence to obtain a rate matched sequence with a length of M, and outputting the rate matched sequence.
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公开(公告)号：US20220158659A1
公开(公告)日：2022-05-19
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
Abstract: An encoding method is provided. The method includes: when a first code rate K/Nmax is less than or equal to a code rate threshold Rt, reading a second matrix from a preset code table based on a first matrix, where the first matrix includes a matrix that is read from the preset code table and that corresponds to a maximum supported code length Nmax and Rt; reading K rows and (N−K) columns starting from a preset first location in the second matrix to obtain a third matrix; 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, where K rows and (Nmax−Nmax×Rt) columns of the first matrix in a first direction are consistent with K rows and (Nmax−Nmax×Rt) columns of the second matrix in a second direction.
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公开(公告)号：US20240283562A1
公开(公告)日：2024-08-22
申请号：US18648918
申请日：2024-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin WANG , Huazi ZHANG , Jiajie TONG , Shengchen DAI , Rong LI , Jun WANG
IPC: H04L1/00
CPC classification number: H04L1/0009 , H04L1/0033 , H04L1/0057
Abstract: The technology of this application relates to an information processing method and a communication apparatus, to reduce implementation complexity of a distribution matcher, and improve encoding efficiency. The method includes obtaining information bits, where the information bits include K bits, and K is a positive integer. The method further includes mapping the information bits to a target symbol sequence based on a trellis diagram, where the target symbol sequence includes M symbols, M is a positive integer greater than K, the M symbols include m symbols whose values are first values, the trellis diagram includes at least M directed edges, and one directed edge corresponds to a value of one symbol in the target symbol sequence.
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Patent Agency Ranking
公开(公告)号：US20240250697A1
公开(公告)日：2024-07-25
申请号：US18585501
申请日：2024-02-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin WANG , Huazi ZHANG , Jiajie TONG , Rong LI , Jun WANG
Abstract: An encoding method, a decoding method, and a communication apparatus. The communication apparatus obtains an information bit sequence with a length K. A length K1 of a first sequence based on K or M is determined, where M is a quantity of modulation symbols. A first vector is obtained based on K, K1, and a predefined sequence. A length of the first vector is 2JM, J is a modulation order, the first vector indicates J coding sub-blocks, the J coding sub-blocks separately belong to a first-type sub-block including at least one coding sub-block or a second-type sub-block including at least one coding sub-block. The communication apparatus determines frozen bit locations in the first-type sub-block and information bit locations in the second-type sub-block and encodes the information bit sequence based on the frozen bit locations in the first-type sub-block, the information bit locations in the second-type sub-block, and the first vector.
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公开(公告)号：US20230318739A1
公开(公告)日：2023-10-05
申请号：US18328137
申请日：2023-06-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Xianbin WANG , Huazi ZHANG , Shengchen DAI , Rong LI , Jun WANG
CPC classification number: H04L1/0057 , H04L1/0042 , H03M13/09 , H03M13/611
Abstract: A method for determining an auxiliary bit of a polar code and an apparatus. At least K sub-channels are determined based on reliability of a first sub-channel set, where the K sub-channels carry information bits. S sub-channel subsets are determined based on the first sub-channel set, an ith sub-channel subset in the S sub-channel subsets includes Ji sub-channels carrying auxiliary bits and Ki sub-channels in the K sub-channels. Sequence numbers of the Ji sub-channels carrying the auxiliary bits are after sequence numbers of the Ki sub-channels. The auxiliary bits are known redundancy check RC bits. Polar encoding is performed on the information bits and the auxiliary bits, to output polar-encoded data.
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公开(公告)号：US20190097769A1
公开(公告)日：2019-03-28
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：US20240323927A1
公开(公告)日：2024-09-26
申请号：US18672145
申请日：2024-05-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin WANG , Huazi ZHANG , Jiajie TONG , Rong LI , Jun WANG
IPC: H04W72/04
CPC classification number: H04W72/04
Abstract: Embodiments of this application disclose a channel coding method and apparatus. The method includes: obtaining a subsequence based on a first sequence and a second sequence; and determining a generator polynomial or a generator matrix based on the subsequence, where the generator polynomial or the generator matrix is used for cyclic code encoding. According to embodiments of this application, generator polynomials or generator matrices for channel coding of different lengths and different bit rates are determined by using two sequences, so that storage space is reduced, and storage complexity is reduced.
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公开(公告)号：US20240250698A1
公开(公告)日：2024-07-25
申请号：US18619914
申请日：2024-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kangjian QIN , Rong LI , Huazi ZHANG , Xianbin WANG , Jun WANG
CPC classification number: H03M13/155 , H03M13/27
Abstract: This application discloses an encoding method, a decoding method, and an apparatus. The encoding method includes: obtaining a first bit sequence and a target code length M; then performing first channel encoding on the first bit sequence, to obtain a second bit sequence; performing second channel encoding based on the second bit sequence, to obtain a third bit sequence; and outputting the third bit sequence. The first bit sequence includes K information bits, the second bit sequence includes N bits, and the third bit sequence includes the N bits and E check bits, where M>N, and E=M−N. M, K, N, and E are all integers greater than or equal to 1.
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