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公开(公告)号：US20230224082A1
公开(公告)日：2023-07-13
申请号：US18174132
申请日：2023-02-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbin WANG , Shengchen DAI , Rong LI , Jian WANG , Xingqing CHENG
CPC classification number: H04L1/08 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0067
Abstract: A retransmission method includes obtaining, by a transmitter, a to-be-coded bit sequence that comprises K to-be-coded bits, where K is a positive integer. The retransmission method further includes performing polar coding on the to-be-coded bit sequence thereby obtaining a coded first bit sequence, and determining an initial transmission version (RV0). A length of the coded first bit sequence is N0. The retransmission method further includes determining a length (E1) of a retransmission version (RV1), determining the RV1 based on an initial transmission bit rate (R0), and sending the RV1.
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公开(公告)号：US20230163784A1
公开(公告)日：2023-05-25
申请号：US18151976
申请日：2023-01-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun WANG , Wen TONG , Xianbin WANG , Rong LI , Yourui HUANGFU , Shengchen DAI , Huazi ZHANG , Jian WANG
CPC classification number: H03M13/09 , H03M13/611
Abstract: A polar code encoding method includes obtaining, by an encoding apparatus, to-be-encoded bits, a mother code length, and a first sequence. The first sequence includes sequence numbers of polarized subchannels. The sequence numbers of the polarized subchannels are arranged in the first sequence based on reliability of the polarized subchannels. The method also includes determining, based on the first sequence, polarized subchannels used to contain the to-be-encoded bits, and performing polarization encoding on the to-be-encoded bits to obtain an encoded bit sequence. The method further includes performing rate matching on the encoded sequence to obtain a rate-matched sequence. The method additionally includes outputting the rate-matched sequence.
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23.发明申请公开(公告)号：US20210227553A1
公开(公告)日：2021-07-22
申请号：US17215243
申请日：2021-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi ZHANG , Ming JIA , Rong LI , Jian WANG , Xianbin WANG , Shengchen DAI , Jun WANG , Yiqun GE , Yan CHEN , Jianglei MA
Abstract: A resource mapping method and apparatus and a resource mapping indication method and apparatus are provided to adapt to an interference cancellation function of a receiver. The method is: A network device obtains a mapping mode used for resource mapping during uplink transmission. The network device sends, to a terminal, information indicating the mapping mode. The mapping mode is used to indicate mapping locations of a plurality of modulation symbols in a resource mapping block RMB, the RMB comprises a plurality of resource elements REs, and at least one RE carries at least two modulation symbols.
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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：US20240305514A1
公开(公告)日：2024-09-12
申请号：US18665859
申请日：2024-05-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Xianbin WANG , Huazi ZHANG , Rong LI , Jun WANG
CPC classification number: H04L27/3405 , H04L27/38
Abstract: This application provides a data sending method and an apparatus. The method includes: A first device sends, to a second device, first data modulated by using a first quadrature amplitude modulation codebook. The second device receives, from the first device, the first data modulated by using the first quadrature amplitude modulation codebook. When the second device fails to decode the first data modulated by using the first quadrature amplitude modulation codebook, the first device sends, to the second device, second data modulated by using a second quadrature amplitude modulation codebook. The second data is a part or all of the first data, and the first quadrature amplitude modulation codebook is different from the second quadrature amplitude modulation codebook. The second device receives, from the first device, the second data modulated by using the second quadrature amplitude modulation codebook, and jointly decodes the first data and the second data.
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Patent Agency Ranking
公开(公告)号：US20240235579A9
公开(公告)日：2024-07-11
申请号：US18399874
申请日：2023-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Xianbin WANG , Huazi ZHANG , Rong LI , Jun WANG
CPC classification number: H03M13/13 , H04L1/0057 , H04L1/0067 , H04L1/0071
Abstract: An encoding method, a decoding method, and an apparatus. A symbol quantity S is determined based on an encoding bit quantity L and an energy level quantity B, where S is S1 or S2, S1=L/B, and S2=L/2B. K information sub-channels are determined from an encoding sequence based on the symbol quantity S, the energy level quantity B, and a reliability sequence. K information bits are encoded and a bit sequence is output based on the K information sub-channels, where the K information sub-channels are selected from candidate sub-channels based on an order of reliability of the candidate sub-channels. The candidate sub-channels are S1 sub-channels or 2×S2 sub-channels in a sub-sequence whose energy level is i in the encoding sequence.
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公开(公告)号：US20240137047A1
公开(公告)日：2024-04-25
申请号：US18399874
申请日：2023-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Xianbin WANG , Huazi ZHANG , Rong LI , Jun WANG
CPC classification number: H03M13/13 , H04L1/0057 , H04L1/0067 , H04L1/0071
Abstract: An encoding method, a decoding method, and an apparatus. A symbol quantity S is determined based on an encoding bit quantity L and an energy level quantity B, where S is S1 or S2, S1=L/B, and S2=L/2B. K information sub-channels are determined from an encoding sequence based on the symbol quantity S, the energy level quantity B, and a reliability sequence. K information bits are encoded and a bit sequence is output based on the K information sub-channels, where the K information sub-channels are selected from candidate sub-channels based on an order of reliability of the candidate sub-channels. The candidate sub-channels are S1 sub-channels or 2×S2 sub-channels in a sub-sequence whose energy level is i in the encoding sequence.
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公开(公告)号：US20240007220A1
公开(公告)日：2024-01-04
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
CPC classification number: H04L1/0041 , H04L1/0045 , H04L1/0057 , H03M13/13
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：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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