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公开(公告)号：US09954696B2
公开(公告)日：2018-04-24
申请号：US14866346
申请日：2015-09-25
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L25/0242 , H04L1/0041 , H04L1/0072 , H04W72/0413
Abstract: Embodiments of the present invention provide a method and an apparatus for encoding uplink control information, so as to optimize the performance of uplink control information transmission. The method includes: shifting a column vector of a predefined encoding matrix M to generate a new encoding matrix M′; and encoding uplink control information by using the new encoding matrix M′. The encoding matrix used for encoding the uplink control information is no longer a fixed predefined encoding matrix, but the new encoding matrix generated after shifting the column vectors of the predefined encoding matrix. Comparing with the method in prior art, the method in embodiments of the present invention can determine a corresponding encoding matrix according to the uplink control information, thereby optimizing the performance of the uplink control information transmission and then improving the efficiency of downlink transmission.
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公开(公告)号：US20170324514A1
公开(公告)日：2017-11-09
申请号：US15659026
申请日：2017-07-25
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L1/00
CPC classification number: H04L1/0058 , H03M13/13 , H04L1/00 , H04L1/0057 , H04L1/0061 , H04L1/007 , H04L1/0071 , H04L27/3488
Abstract: A polar code generation method and device are disclosed. The method includes: determining an index set of information bits of a polar code according to a first modulation scheme; and encoding the polar code according to the index set of the information bits of the polar code.
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公开(公告)号：US20170288703A1
公开(公告)日：2017-10-05
申请号：US15629498
申请日：2017-06-21
Applicant: Huawei Technologies Co., Ltd.
Abstract: The present invention discloses a polar code encoding method and encoding apparatus. The method includes: mapping M reserved bits of a broadcast signaling respectively to M low-reliability information bits in K information bits of a polar code, and mapping remaining bits of the broadcast signaling to remaining information bits of the K information bits, to obtain bits after mapping, where M
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公开(公告)号：US09780918B2
公开(公告)日：2017-10-03
申请号：US15146709
申请日：2016-05-04
Applicant: Huawei Technologies Co., Ltd.
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,
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公开(公告)号：US20170264394A1
公开(公告)日：2017-09-14
申请号：US15608060
申请日：2017-05-30
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0071 , H03M13/13 , H03M13/27 , H03M13/2742 , H03M13/6306 , H03M13/6362 , H04L1/0041 , H04L1/0068 , H04N19/00
Abstract: The present disclosure discloses a polar code rate matching method and apparatus and a wireless communications device that includes performing sorting processing on the first sequence Z according to a preset rule to determine a second sequence, wherein the first sequence Z is determined based on a Mersenne twister algorithm according to a code length of a target polar code, and interleaving the target polar code according to a mapping function to generate interleaved output bits, wherein the mapping function is determined according to the first sequence Z and the second sequence. A Mersenne twister algorithm is applied to target polar code rate matching such that a bit sequence obtained from the rate matching can be more even in structure, a frame error rate of a punctured polar code can be reduced, hybrid automatic repeat request (HARQ) performance can be improved, and further, communication reliability can be improved.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20170012740A1
公开(公告)日：2017-01-12
申请号：US15274188
申请日：2016-09-23
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/0067 , H03M13/13 , H03M13/2757 , H03M13/2789 , H03M13/2792 , H03M13/616 , H03M13/6306 , H03M13/6362 , H04L1/0041 , H04L1/0057 , H04L1/0071 , H04L1/1812
Abstract: Embodiments of the present invention provide a polar code rate matching method and a polar code rate matching apparatus. The method includes: performing matrix-based BRO interleaving on a non-systematic polar code output by a polar code encoder, to obtain interleaved bits; and determining, based on the interleaved bits, a rate-matched output sequence. According to the embodiments of the present invention, matrix-based BRO interleaving is performed on a non-systematic polar code, 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: 本发明的实施例提供了极性码率匹配方法和极码率匹配装置。 该方法包括：对由极性码编码器输出的非系统极性码进行基于矩阵的BRO交织，以获得交织比特; 以及基于所述交错比特来确定速率匹配输出序列。 根据本发明的实施例，对非系统极性码执行基于矩阵的BRO交织，以获得速率匹配输出序列，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：US20170012739A1
公开(公告)日：2017-01-12
申请号：US15270250
申请日：2016-09-20
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L1/00
CPC classification number: H04L1/0067 , H03M13/13 , H03M13/2757 , H03M13/6306 , H03M13/6362 , H04L1/00 , H04L1/0041 , H04L1/0057 , H04L1/0071
Abstract: A polar code rate matching method and apparatus are provided. The method includes: performing bit reversal order interleaving on a polar code output by a polar code encoder, to obtain interleaved bits; and determining, based the interleaved bits, a rate-matched output sequence. By performing bit reversal order interleaving on a polar code, a rate-matched output sequence is obtained, which can reduce an FER, thereby improving HARQ performance and ensuring reliability of data transmission.
Abstract translation: 提供了一种极速码率匹配方法和装置。 该方法包括：对极性码编码器输出的极坐标执行位反转顺序交织，得到交错位; 以及基于所述交织比特来确定速率匹配输出序列。 通过对极性码进行比特反转顺序交织，获得速率匹配输出序列，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：US20160308643A1
公开(公告)日：2016-10-20
申请号：US15191533
申请日：2016-06-24
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Bin Li , Wen Tong , Hui Shen , Yuchen Shi
CPC classification number: H04L1/0054 , H03M13/1105 , H03M13/13 , H04B7/0413 , H04W88/02
Abstract: A method for decoding Polar codes includes: receiving a Polar code having a length of N, and dividing the Polar code into m subcodes that are coupled to each other, each subcode has a length of N/m, and each of N and m is an integer powers of 2; calculating squared Euclidean distances of input bits in the m subcodes, to obtain minimum squared Euclidean distances of the input bits that are independent of each other; obtaining, accordingly a minimum squared Euclidean distance of input bits that are coupled to each other in the m subcodes; and obtaining input bits that are in the m subcodes and that meet the independent minimum squared Euclidean distances and the combined minimum squared Euclidean distance, and obtaining a decoding result of the Polar code with reference to relationships between the m subcodes and the Polar code.
Abstract translation: 一种用于解码极性码的方法包括：接收长度为N的极性码，并将极性码分成彼此耦合的m个子码，每个子码的长度为N / m，N和m中的每一个为 整数幂为2; 计算m个子码中输入比特的平方欧几里德距离，以获得彼此独立的输入比特的最小平方欧几里德距离; 因此，获得在m个子码中彼此耦合的输入比特的最小平方欧几里德距离; 并获得在m个子码中并且满足独立的最小平方欧几里德距离和组合的最小平方欧几里得距离的输入比特，并且参考m个子码和极地码之间的关系获得极地码的解码结果。
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公开(公告)号：US20160218743A1
公开(公告)日：2016-07-28
申请号：US15092581
申请日：2016-04-06
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
CPC classification number: H03M13/155 , H03M13/09 , H03M13/13 , H03M13/2792 , H03M13/2906 , H03M13/2924 , H03M13/2957 , H03M13/611 , H03M13/6356 , H03M13/6516 , H04L1/0057
Abstract: A method for performing polar coding is disclosed in the application. A data block is segmented into a plurality of first blocks. Difference in bit length between any two first blocks is not more than one bit. For each first block, one or more consecutive padding bits is added to obtain a second block of a bit length K if the bit length of the first block is less than K, so as to obtain a plurality of second blocks corresponding to the first blocks. N−K consecutive bits are added to each of the second blocks to obtain a plurality of third blocks. Polar encoding is performed on the third blocks.
Abstract translation: 本申请中公开了一种执行极地编码的方法。 数据块被分割成多个第一块。 任何两个第一块之间的位长度差不超过一位。 对于每个第一块，如果第一块的比特长度小于K，则添加一个或多个连续填充比特以获得比特长度K的第二块，以便获得与第一块对应的多个第二块 。 将N-K个连续位添加到每个第二块，以获得多个第三块。 在第三个块上执行极性编码。
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公开(公告)号：US20150381208A1
公开(公告)日：2015-12-31
申请号：US14845565
申请日：2015-09-04
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H03M13/1575 , H03M13/13 , H03M13/2906 , H03M13/616 , H03M13/6561
Abstract: Embodiments of the present invention provide a Polar code decoding method and decoder. The decoding method includes: segmenting a first Polar code having a length of N into m mutually coupled second Polar codes, where a length of each second Polar code is N/m, N and m are integer powers of 2, and N>m; independently decoding the m second Polar codes to acquire decoding results of the m second Polar codes; and obtaining a decoding result of the first Polar code according to the decoding results of the m second Polar codes. In the embodiments of the present invention, a Polar code having a length of N is segmented into multiple segments of mutually coupled Polar codes; the segmented Polar codes are independently decoded; and results of the independent decoding are jointly processed to obtain a decoding result of an original Polar code.
Abstract translation: 本发明的实施例提供一种极性码解码方法和解码器。 解码方法包括：将长度为N的第一极性码分割为m个相互耦合的第二极性码，其中每个第二极性码的长度为N / m，N和m为2的整数倍，N> m; 独立地解码m个第二极性码，以获得m个第二极性码的解码结果; 以及根据m个第二极性码的解码结果获得第一极性码的解码结果。 在本发明的实施例中，长度为N的极性码被分割为相互耦合的极性码的多个段; 分段极性码被独立地解码; 联合处理独立解码的结果，以获得原始极性码的解码结果。
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