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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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公开(公告)号：US20240031058A1
公开(公告)日：2024-01-25
申请号：US18358492
申请日：2023-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kangjian QIN , Huazi ZHANG , Shengchen DAI , Bin LI , Rong LI , Jun WANG
IPC: H04L1/00
CPC classification number: H04L1/0057 , H04L1/0061
Abstract: A transmit-end device obtains a first bit sequence including K information bits (401); then maps the K information bits to m sub-blocks, and performs first polar code encoding on the m sub-blocks to obtain a second bit sequence (402); and modulates the second bit sequence to obtain and send a symbol sequence (403). Correspondingly, a receive-end device obtains the symbol sequence (404), and decodes and demodulates the symbol sequence to obtain the K information bits (405). The m sub-blocks include a first sub-block, a quantity of information bits included in the first sub-block is obtained based on K and a code rate R of the first bit sequence, m may be understood as a modulation order of the first bit sequence, and a length of the second bit sequence is N.
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公开(公告)号：US20240030941A1
公开(公告)日：2024-01-25
申请号：US18463404
申请日：2023-09-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin LI , Jiaqi GU , Huazi ZHANG , Shengchen DAI
CPC classification number: H03M13/27 , H03M13/616
Abstract: An encoding apparatus may obtain a to-be-encoded sequence, where the to-be-encoded sequence includes information bits and fixed bits, and the information bits and the fixed bits are determined based on reliability and/or row weights of generator matrices corresponding to the to-be-encoded bits; and perform encoding on the to-be-encoded sequence to obtain an encoded sequence, where an encoding process of the encoding includes at least one interleaving.
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公开(公告)号：US20240030931A1
公开(公告)日：2024-01-25
申请号：US18477105
申请日：2023-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tianhang YU , Xiaocheng LIU , Gongzheng ZHANG , Shengchen DAI , Rong LI , Jun WANG
IPC: H03M1/08
CPC classification number: H03M1/0854 , H03M1/0836
Abstract: A signal processing method and an apparatus thereof. A first signal is received, wherein the first signal includes x symbols. N types of quantization levels are determined based on a signal distribution parameter of the first signal. A second signal is determined based on the first signal. Quantization processing is performed on the second signal to obtain x groups of first quantization results, wherein the x symbols are in one-to-one correspondence with the x groups of first quantization results. The x groups of first quantization results are mapped to a quantized first signal, wherein the quantized first signal includes x quantization levels, and each group of first quantization results is mapped to one of the N types of quantization levels. Signal processing is performed on the quantized first signal.
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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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Patent Agency Ranking
公开(公告)号：US20200083984A1
公开(公告)日：2020-03-12
申请号：US16685366
申请日：2019-11-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zukang SHEN , Yunfei QIAO , Rong LI , Hejia LUO , Shengchen DAI
IPC: H04L1/00
Abstract: A polar code-based transmission method and apparatus are provided, to better apply polar encoding to a PBCH. The method is as follows: performing, by a transmit end, polar encoding on a to-be-encoded first bit sequence, to generate an encoded sequence; performing, by the transmit end, a transformation operation on the encoded sequence, to obtain a second bit sequence, where the transformation operation includes at least one of scrambling, interleaving, and reordering; and sending, by the transmit end, the second bit sequence in M inconsecutive time units, where at least two time intervals between the time units in the M inconsecutive time units are unequal.
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公开(公告)号：US20200008099A1
公开(公告)日：2020-01-02
申请号：US16571161
申请日：2019-09-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunfei QIAO , Chaolong ZHANG , Jian WANG , Shengchen DAI , Rong LI
Abstract: Embodiments provide a data transmission method and a related device. Under the method, after determining a first data packet to be sent to a receive end, a transmit end may generate a second data packet based on the first data packet, encode the second data packet, and send an encoded second data packet. A length of the second data packet is greater than a length of the first data packet. In various embodiments, when sending a data packet to the receive end, the transmit end may generate a longer data packet from a shorter data packet through combination, and send the longer data packet to the receive end after channel coding. In this way, a relatively high channel coding gain can be obtained during data transmission, and a relatively high bit error rate of short packet transmission is avoided, so that data transmission reliability can be improved.
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公开(公告)号：US20250015933A1
公开(公告)日：2025-01-09
申请号：US18779058
申请日：2024-07-21
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
Abstract: Embodiments of this application disclose a polar code encoding method, a polar code decoding method, and apparatuses thereof, to reduce encoding and decoding complexity. The 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; and performing polar encoding on the input vector to obtain an encoded bit.
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公开(公告)号：US20230208442A1
公开(公告)日：2023-06-29
申请号：US18170763
申请日：2023-02-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Huazi ZHANG , Xianbin WANG , Shengchen DAI , Rong LI , Jun WANG
CPC classification number: H03M13/13 , H03M13/612
Abstract: An encoding method includes obtaining to-be-encoded information and a mother code length N. The to-be-encoded information includes K information bits. The method also includes determining, based on K and N, a set I corresponding to subchannels of the information bits and a set F corresponding to subchannels of frozen bits. Information bits corresponding to subchannel sequence numbers in the set I are distributed in X outer component codes, a code length of each outer component code is B, and the X outer component codes includes a first-type outer component code and a second-type outer component code or the X outer component codes include a first-type outer component code, a second-type outer component code, and one third-type outer component code. Different types of component codes have different code rates. The method additionally includes performing polarization encoding based on the set I and the set F.
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公开(公告)号：US20230171033A1
公开(公告)日：2023-06-01
申请号：US18160008
申请日：2023-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen DAI , Gongzheng ZHANG , Rong LI , Yunfei QIAO , Xianbin WANG , Jun WANG , Wen TONG , Jian WANG , Jian WANG
CPC classification number: H04L1/08 , H03M13/13 , H04L1/0067 , H04L1/0061
Abstract: A retransmission method includes obtaining, by a sending apparatus, a to-be-encoded bit sequence comprising K to-be-encoded bits, where K is a positive integer. The method also includes performing polar encoding on the to-be-encoded sequence to obtain an encoded first bit sequence. A length of the first bit sequence is N0. The method also includes determining an initial transmission version RV0. The method also includes determining a length E1 of a retransmission version RV1. The method also includes determining the retransmission version RV1 based on an initial transmission code rate RO. The method also includes sending the RV1.
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