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公开(公告)号：US10270470B2
公开(公告)日：2019-04-23
申请号：US14845565
申请日：2015-09-04
Applicant: Huawei Technologies Co., Ltd.
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.
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公开(公告)号：US20190007165A1
公开(公告)日：2019-01-03
申请号：US16007966
申请日：2018-06-13
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Abstract: Disclosed in embodiments of the present disclosure are a polar code encoding method and device. The method includes: 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：US10103752B2
公开(公告)日：2018-10-16
申请号：US14690057
申请日：2015-04-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
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.
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公开(公告)号：US10020913B2
公开(公告)日：2018-07-10
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 , H04L1/0043
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：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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Patent Agency Ranking
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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公开(公告)号：US20170262644A1
公开(公告)日：2017-09-14
申请号：US15605641
申请日：2017-05-25
Applicant: Huawei Technologies Co., Ltd.
Abstract: The present invention relates to a software handling device and a server system. The software handling device comprises a processor and a transceiver, wherein the transceiver is configured to transmit varies requests and to receive varies verifications and encryption keys to and from a server system. The server system comprises an authentication server, a licensing server and a software application server, wherein the server system is configured to receive varies requests and to transmit varies verifications and encryption keys from and to a software handling device. Furthermore, the present invention also relates to corresponding methods, a computer program, and a computer program product.
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