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公开(公告)号：US20240137152A1
公开(公告)日：2024-04-25
申请号：US18399870
申请日：2023-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiajie TONG , Huazi ZHANG , Shengchen DAI , Xianbin WANG , Rong LI , Jun WANG
CPC classification number: H04L1/0057 , H03M13/15 , H04W28/04
Abstract: A polar code construction method and an apparatus. A communication apparatus obtains a reliability weight sequence, and determines a first threshold that indicates a weight of lowest reliability of a subchannel corresponding to an information bit. The communication apparatus determines a non-pre-frozen subchannel corresponding to a content value greater than or equal to the first threshold in the reliability weight sequence as the subchannel corresponding to the information bit based on the first threshold, and performs polar coding on the information bit based on the subchannel corresponding to the information bit.
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公开(公告)号：US20230283299A1
公开(公告)日：2023-09-07
申请号：US18317259
申请日：2023-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xianbin WANG , Rong LI , Huazi ZHANG , Shengchen DAI , Jiajie TONG , Yunfei QIAO , Jun WANG
IPC: H03M13/13 , H04L5/00 , H04L1/1607
CPC classification number: H03M13/13 , H04L5/0048 , H04L1/1621
Abstract: This application provides a polar encoding method and apparatus. The method can include obtaining a basic sequence, where the basic sequence includes N0 subchannel numbers. The method can also include sequentially reading first subchannel numbers from the basic sequence, and sequentially reading 2m second subchannel numbers from the basic sequence starting from an Mth subchannel number based on the first subchannel number read each time; and adding q*N0 to each of the 2m second subchannel numbers to obtain 2m third subchannel numbers. Furthermore, the method can include constructing a polar code by using subchannels corresponding to the 2m third subchannel numbers as information bits. A polar code with another code length is constructed based on a sequence with a length of N0. A length of a polar code that needs to be stored is therefore reduced, which reduces complexity and is also easy to implement.
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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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4.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：US20200014403A1
公开(公告)日：2020-01-09
申请号：US16572163
申请日：2019-09-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Rong LI , Huazi ZHANG , Jian WANG , Jun WANG
Abstract: An encoding method, an encoding apparatus, and a communications apparatus are disclosed. Specifically, the encoding method includes: obtaining a first sequence corresponding to a basic code length N0; determining N to-be-encoded bits, where the N to-be-encoded bits include N2 fixed bits, and N is greater than the basic code length N0; extending the first sequence to obtain a second sequence; determining locations of the N2 fixed bits in the N to-be-encoded bits based on polar channel serial numbers indicated by first N2 elements in the second sequence; and performing polar encoding on the N to-be-encoded bits to obtain encoded bits. The locations of the fixed bits in the N to-be-encoded bits are determined based on the second sequence, and the second sequence is obtained by extending the first sequence corresponding to the basic code length N0.
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Patent Agency Ranking
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：US20240283465A1
公开(公告)日：2024-08-22
申请号：US18649379
申请日：2024-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiahui LI , Mengyao MA , Jiaqi GU , Zihan TANG , Wei LIN , Huazi ZHANG , Xun YANG
CPC classification number: H03M13/13 , H03M13/09 , H03M13/616 , H04J13/0029
Abstract: This application provides a coding method, a decoding method, and a communications apparatus. The coding method includes: obtaining a first information bit sequence; determining a first frozen bit sequence based on a probability distribution value P1 of the first information bit sequence; determining a check bit sequence based on a second information bit sequence, where the second information bit sequence is the first information bit sequence or a sequence obtained after a pre-transformation operation is performed on the first information bit sequence; obtaining a first bit sequence based on the second information bit sequence, the check bit sequence, and the first frozen bit sequence, where the first bit sequence includes bits in the second information bit sequence.
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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：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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