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公开(公告)号：US20150194987A1
公开(公告)日：2015-07-09
申请号：US14664422
申请日：2015-03-20
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
CPC classification number: H03M13/616 , H03M13/13 , H04L1/0009 , H04L1/0057
Abstract: Embodiments of the present invention provide a method and an apparatus for generating a hybrid Polar code. The method includes: obtaining a first matrix of N×N and a sequence that includes N bits, N rows of the first matrix correspond to the N bits in the sequence in a one-to-one manner, and N is a positive integer; determining reliability of the N bits, and determining the weight of each row in the N rows of the first matrix; selecting, according to the reliability of the N bits and the weight of the N rows of the first matrix, K bits among the N bits as information bits, or selecting, according to the reliability of the N bits and the weight of the N rows of the first matrix, K rows of the first matrix to construct a second matrix of K×N used for encoding,
Abstract translation: 本发明的实施例提供了一种用于生成混合极性码的方法和装置。 该方法包括：获得N×N的第一矩阵和包括N比特的序列，第一矩阵的N行以一对一的方式对应于该序列中的N比特，并且N是正整数; 确定N位的可靠性，以及确定第一矩阵的N行中的每行的权重; 根据N位的可靠性和第一矩阵的N行的权重，选择N位中的K位作为信息位，或者根据N位的可靠性和N行的权重来选择 的第一矩阵的K行，构成用于编码的K×N的第二矩阵，
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公开(公告)号：US20140341282A1
公开(公告)日：2014-11-20
申请号：US14317040
申请日：2014-06-27
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: H04N19/593
CPC classification number: H04N19/11 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/593
Abstract: Embodiments of the present invention provide an encoding or decoding method and apparatus. The method includes: extracting first information in a bitstream; determining a chroma component intra prediction mode according to the first information; when the chroma component intra prediction mode cannot be determined according to the first information, extracting second information in the bitstream; and determining the chroma component intra prediction mode according to the second information, where the first information includes information for indicating whether the chroma component intra prediction mode is a DM mode or an LM mode, the second information is used to indicate a remaining mode as the chroma component intra prediction mode, and the remaining mode is one of available chroma component intra prediction modes other than a mode that may be determined according to the first information.
Abstract translation: 本发明的实施例提供一种编码或解码方法和装置。 该方法包括：提取比特流中的第一信息; 根据第一信息确定色度分量帧内预测模式; 当色度分量帧内预测模式不能根据第一信息确定时，提取比特流中的第二信息; 以及根据所述第二信息确定所述色度分量帧内预测模式，其中所述第一信息包括用于指示所述色度分量帧内预测模式是DM模式还是LM模式的信息，所述第二信息用于将剩余模式指示为 色度分量帧内预测模式，并且剩余模式是可以根据第一信息确定的模式之外的可用色度分量帧内预测模式之一。
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公开(公告)号：US20220116141A1
公开(公告)日：2022-04-14
申请号：US17556756
申请日：2021-12-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present disclosure disclose a communication method and apparatus, including: obtaining to-be-encoded first information, where the first information includes a first information bit set and a second information bit set, bits included in the first information bit set are able to be obtained through correct decoding by a plurality of terminal devices, and bits included in the second information bit set are able to be obtained through correct decoding by some of the plurality of terminal devices; performing first polar encoding on the first information bit set to obtain first encoded information; performing second polar encoding on the second information bit set based on the first encoded information to obtain second encoded information; and outputting the second encoded information. Resources can be saved by implementing the embodiments of the present disclosure.
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公开(公告)号：US20210297179A1
公开(公告)日：2021-09-23
申请号：US17221436
申请日：2021-04-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Disclosed in an embodiment of the present invention are a polar code encoding method and device, the method comprising: utilizing a common information bit set to represent each of m polar code blocks, the polar codes in each polar code block having the same code length and different code rates, and m being greater than or equal to 2; according to the common information bit set corresponding to the polar code block, acquiring an information bit set corresponding to each polar code in the polar code block; and according to the information bit set corresponding to each polar code in the polar code block, conducting polar code encoding on information to be encoded, thus reducing polar code representation overhead, and solving the problem in the prior art of excessively high polar code representation overhead.
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公开(公告)号：US20190312602A1
公开(公告)日：2019-10-10
申请号：US16450125
申请日：2019-06-24
Applicant: Huawei Technologies Co., Ltd.
IPC: H03M13/00
Abstract: A channel coding method and a channel coding apparatus are provided. The method includes: separately preprocessing to-be-encoded bit sequences, and then inputting, according to a position arrangement order of encoding sub-blocks of an encoding block in an encoder, bit sequences preprocessed each time into encoding blocks of the encoder. Therefore, preprocessed bit sequences are placed, according to this order, into corresponding encoding blocks each time preprocessing is performed. According to this solution, even if a transmit device does not know exact capacities of a parallel channels, a correct encoding scheme for the transmit device and a correct decoding scheme for a receive device can be designed, and it can be ensured that a combined capacity of the parallel channels can reach 1.
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Patent Agency Ranking
公开(公告)号：US20190089380A1
公开(公告)日：2019-03-21
申请号：US16196600
申请日：2018-11-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method includes: dividing a first polar code into an odd number part and an even number part, where the odd number part of the first polar code includes bits in odd number locations in the first polar code, and the even number part of the first polar code includes bits in even number locations in the first polar code; and interleaving the odd number part of the first polar code to obtain a first bit sequence, and interleaving the even number part of the first polar code to obtain a second bit sequence, where the first bit sequence and the second bit sequence form an output sequence of rate matching.
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公开(公告)号：US20190081735A1
公开(公告)日：2019-03-14
申请号：US16186437
申请日：2018-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: A polar encoding and rate matching method is provided, including: determining one or more to-be-deleted rows of a generator matrix, where the generator matrix is determined based on a preset mother code length, and a column in which 1 in the one or more to-be-deleted rows is located includes at least one column with a column weight being 1; deleting, from the one or more to-be-deleted rows, a row corresponding to a polarized channel with lowest reliability, and deleting, from a column in which 1 in the row is located, a column with a column weight being 1, to obtain an after-deletion generator matrix; using the after-deletion generator matrix as a generator matrix to repeat the foregoing steps, until an order of a final generator matrix is equal to a target code length; and performing encoding and rate matching on a to-be-encoded bit based on the final generator matrix.
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公开(公告)号：US20160079999A1
公开(公告)日：2016-03-17
申请号：US14947653
申请日：2015-11-20
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H03M13/2792 , H03M13/09 , H03M13/13 , H03M13/27 , H03M13/2906 , H04L1/0041 , H04L1/0057 , H04L1/0061 , H04L1/0065 , H04L1/0071
Abstract: The present invention provides a coding method and a coding device. The coding method includes: coding information bits a to be coded via cyclic redundancy check CRC, then inputting the bits coded via the CRC into an interleaver determined by a construction parameter of a Polar code, where the interleaver is configured to interleave the bits coded via the CRC and output interleaved bits; and coding the output interleaved bits via the Polar code to obtain a coded Polar code. The above method is used to solve a problem in the prior art that minimum code distance of a Polar code is not large enough when the Polar code is relatively short or is of a medium length.
Abstract translation: 本发明提供一种编码方法和编码装置。 编码方法包括：通过循环冗余校验CRC对要编码的信息比特a进行编码，然后将通过CRC编码的比特输入到由极性码的构造参数确定的交织器中，其中交织器被配置为交织经编码的比特 CRC和输出交错位; 并通过极性码对输出交错比特进行编码以获得编码的极性码。 上述方法用于解决现有技术中当极坐标相对较短或中等长度时极性码的最小码距离不够大的问题。
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公开(公告)号：US20150222295A1
公开(公告)日：2015-08-06
申请号：US14690057
申请日：2015-04-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H03M13/2906 , H03M13/09 , H03M13/1102 , H03M13/13 , H03M13/3738 , H04L1/00 , H04L1/0045 , H04L1/0059
Abstract: Embodiments of the present invention provide an encoding/decoding method, apparatus, and system. The present invention is used to improve the decoding performance and improve accuracy of a survivor path. The method includes: encoding information bits to obtain a first-level encoded code word; obtaining a sorting value of each check bit of the first-level encoded code word, and adjusting each check bit to a corresponding position according to the sorting value of each check bit, where the sorting value refers to a value of S when the check bit is related to first S information bits of the information bits in the first-level encoded code word, and S is a non-zero integer; and performing second-level encoding on the first-level encoded code word after positions of the check bits are adjusted, thereby obtaining a second-level encoded code word. The present invention is applicable to various communication systems.
Abstract translation: 本发明的实施例提供了一种编码/解码方法，装置和系统。 本发明用于提高解码性能并提高幸存路径的准确性。 该方法包括：对信息比特进行编码以获得第一级编码码字; 获得第一级编码码字的每个校验位的排序值，并且根据每个校验位的排序值将每个校验位调整到相应的位置，其中当检查位 与第一级编码码字中的信息比特的第一S个信息比特相关，S是非零整数; 以及在校验位的位置被调整之后对第一级编码码字执行二级编码，由此获得二级编码码字。 本发明可应用于各种通信系统。
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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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