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公开(公告)号：US20190372603A1
公开(公告)日：2019-12-05
申请号：US16542926
申请日：2019-08-16
Applicant: Huawei Technologies Co., Ltd.
Abstract: A network device polar encodes data to obtain a first encoded bit sequence, wherein the first encoded bit sequence comprises: bits in even number locations in the first encoded bit sequence and bits in odd number locations in the first encoded bit sequence; then the device interleaves the first encoded bit sequence to obtain an interleaved bit sequence; finally, the device rate matches the interleaved bit sequence and outputs the bit sequence after rate matched, wherein bits in even number locations of the interleaved bit sequence are from the bits in even number locations of the first encoded bit sequence, bits in odd number locations of the interleaved bit sequence are from the bits in odd number locations of the first encoded bit sequence.
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公开(公告)号：US20160269050A1
公开(公告)日：2016-09-15
申请号：US15159484
申请日：2016-05-19
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H03M13/2792 , H03M13/13 , H03M13/451 , H04L1/0057 , H04L1/0071
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.
Abstract translation: 一种方法包括：将第一极性码分成奇数部分和偶数部分，其中第一极性码的奇数部分包括第一极性码中奇数位置的位，第一极坐标的偶数部分 极性代码包括第一极性码中偶数位置的位; 以及交织所述第一极性码的奇数部分以获得第一比特序列，以及交织所述第一极性码的偶数部分以获得第二比特序列，其中所述第一比特序列和所述第二比特序列形成输出序列 的速率匹配。
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3.发明申请公开(公告)号：US20160248547A1
公开(公告)日：2016-08-25
申请号：US15146709
申请日：2016-05-04
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L1/00
CPC classification number: H04L1/0069 , H03M13/13 , H03M13/6306 , H03M13/6362 , H04L1/0041 , H04L1/0057
Abstract: A rate matching method for Polar codes includes: with respect to Polar codes output by an encoder, determining a plurality of types of punching position sets to be selected, punching positions indicated by any two punching position sets being not completely identical to each other; for each type of punching position set, determining the sum of error probabilities of all bit channels for transmitting information bits of the Polar codes when the punching position set is applied, the sum of the error probabilities being called the upper limit of frame error ratios corresponding to the punching position set; and from the plurality of types of punching position sets to be selected, selecting a punching position set corresponding to the minimum upper limit of the frame error ratios as a selected punching position set, and according to p punching positions indicated in the selected punching position set, conducting rate matching.
Abstract translation: 用于极地码的速率匹配方法包括：关于由编码器输出的极性码，确定要选择的多种类型的冲孔位置组，由任何两个穿孔位置组指示的冲孔位置彼此不完全相同; 对于每种类型的冲压位置集合，当应用冲压位置时，确定用于发送极性码的信息位的所有位通道的误差概率之和，将误差概率的和称为对应的帧错误率的上限 到打孔位置设定; 并且从要选择的多种类型的冲孔位置组中，选择与帧错误率的最小上限相对应的冲压位置作为所选择的冲压位置，并且根据在所选择的冲压位置组中指示的p冲压位置 ，进行率匹配。
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公开(公告)号：US20170005753A1
公开(公告)日：2017-01-05
申请号：US15269553
申请日：2016-09-19
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0067 , H03M13/13 , H03M13/2739 , H03M13/6306 , H03M13/6362 , H04L1/0041 , H04L1/0057 , H04L1/0061 , H04L1/0068 , H04L1/0071 , H04L1/1812 , H04L1/1819 , H04L1/1835 , H04L1/1867 , H04W28/14
Abstract: A Polar code rate matching method and a rate matching apparatus are disclosed. The method includes: dividing a system Polar code output by a Polar code encoder into system bits and parity bits; interleaving the system bits to obtain a first group of interleaved bits, and interleaving the parity bits to obtain a second group of interleaved bits; and determining a rate-matched output sequence based on the first group of interleaved bits and the second group of interleaved bits. System bits and parity bits are separately interleaved, to obtain a rate-matched output sequence, so that a sequence structure after interleaving is more random, which can reduce an FER, thereby improving HARQ performance, and ensuring reliability of data transmission.
Abstract translation: 公开了极性码率匹配方法和速率匹配装置。 该方法包括：将由极性码编码器输出的系统极性码分成系统位和奇偶校验位; 交织系统比特以获得第一组交织比特，并交织奇偶比特以获得第二组交织比特; 以及基于所述第一组交织比特和所述第二组交织比特来确定速率匹配输出序列。 系统位和奇偶校验位分别交错，以获得速率匹配的输出序列，使得交织后的序列结构更随机，这可以减少FER，从而提高HARQ性能，并确保数据传输的可靠性。
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公开(公告)号：US20160254876A1
公开(公告)日：2016-09-01
申请号：US15151320
申请日：2016-05-10
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0041 , H03M13/05 , H03M13/13 , H03M13/611 , H03M13/618
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.
Abstract translation: 在本发明的一个实施例中公开了一种极地编码方法和装置，该方法包括：利用公共信息比特集来表示m个极性码块中的每一个，每个极性码块中具有相同码长的极性码，以及 不同的码率，m大于或等于2; 根据与极性码块相对应的公共信息位集合，获取与极坐标块中的每个极性码对应的信息位集; 并且根据与极性码块中的每个极性码对应的信息比特集，对要编码的信息进行极性码编码，从而降低极性码表示开销，并解决现有技术中过高极性码表示开销的问题 。
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Patent Agency Ranking
公开(公告)号：US20220224947A1
公开(公告)日：2022-07-14
申请号：US17584726
申请日：2022-01-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N19/93 , H04N19/184 , H04N19/91
Abstract: The present disclosure provides example coding method, apparatus, and computer-readable storage medium. One example method includes sorting a plurality of pieces of run-length encoding (RLE) data based on their distribution probabilities. The plurality of pieces of sorted RLE data are mapped onto a plurality of pieces of reassembled data. The plurality of pieces of reassembled data are expanded into a plurality of pieces of binary data. A first matrix is generated based on the plurality of pieces of binary data. A code sequence is determined by processing a source signal, where the code sequence comprises a first set and a second set. A first vector is decoded to output a third set, where the third set includes one or more bits reserved after processing the source signal and one or more locations at which a decoding error occurs in one or more bits discarded after processing the source signal.
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公开(公告)号：US20200052818A1
公开(公告)日：2020-02-13
申请号：US16659726
申请日：2019-10-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: An information adding method and apparatus, to increase a quantity of terminals that can be represented by an identifier sequence. The method includes: performing, by a transmit end, polar code encoding on a first bit sequence to generate an encoded second bit sequence; adding, by the transmit end, a part or all of an identifier sequence to the second bit sequence to generate a third bit sequence, where the identifier sequence is used to identify a terminal; and sending, by the transmit end, the third bit sequence.
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公开(公告)号：US20170077954A1
公开(公告)日：2017-03-16
申请号：US15363028
申请日：2016-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H03M13/13 , H03M13/6362 , H04L1/0058
Abstract: Methods and apparatuses are provided for constructing a punctured polar code in the encoding and decoding field to improve decoding performance of a punctured polar code and reduce a frame error rate of the punctured polar code. The method is as follows: comparing a phase sequence number of a current bit channel with a period index of a puncturing pattern to obtain a comparison result; obtaining a transition probability of the bit channel according to the comparison result and bit parity conditions of a sequence number of the bit channel in each phase; obtaining a reliability value of each bit channel according to the transition probability; and determining an information bit index set according to the reliability values.
Abstract translation: 提供了用于在编码和解码字段中构建穿孔极性码的方法和装置，以改善打孔的极性码的解码性能并降低穿孔极性码的帧错误率。 该方法如下：将当前比特信道的相序号与打孔图案的周期索引进行比较以获得比较结果; 根据比较结果和每个相位中比特信道的序列号的比特奇偶校验条件获得比特信道的转换概率; 根据转换概率获得每个位信道的可靠性值; 以及根据可靠性值确定信息比特索引集合。
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公开(公告)号：US20220174329A1
公开(公告)日：2022-06-02
申请号：US17674676
申请日：2022-02-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N19/93 , H04N19/124 , H04N19/91
Abstract: This application discloses an image encoding method and apparatus, an image decoding method and apparatus, and a chip. In the encoding method, first, a run-length value sequence and a level value sequence are obtained by using a quantized sequence of an image; updated distribution probabilities of level values are obtained based on distribution probabilities of run-length values and the level values and according to a mapping rule; finally, entropy encoding is performed based on the level value sequence and the updated distribution probabilities of the level values, to output encoded image data. A decoder side only needs to additionally learn of the mapping rule to complete decoding. The method is simple to implement, and can improve image compression efficiency and effectively reduce an amount of data for representing the image.
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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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