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公开(公告)号：US20190173491A1
公开(公告)日：2019-06-06
申请号：US16272937
申请日：2019-02-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Ying Chen , Rong Li , Chaolong Zhang , Yourui Huangfu , Huazi Zhang
Abstract: A rate matching method for a polar code is provided, to improve performance. The method includes: encoding, based on an N*N encoding matrix of a polar code, a sequence including N first bits, to generate a mother code including N second bits, where the N first bits are in a one-to-one correspondence with N rows in the encoding matrix in sequence, and the N second bits are in a one-to-one correspondence with N columns in the encoding matrix in sequence; determining N−M to-be-punctured second bits from the N second bits, where at least one first bit in N−M first bits participating in encoding of the N−M second bits belongs to the first M first bits in the N first bits, and the N−M first bits are fixed bits; and puncturing the N−M second bits, to obtain a target polar code including M second bits.
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12.发明授权公开(公告)号：US11671116B2
公开(公告)日：2023-06-06
申请号：US17591347
申请日：2022-02-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Jin , Ivan Leonidovich Mazurenko , Aleksandr Aleksandrovich Petiushko , Chaolong Zhang
CPC classification number: H03M13/255 , H03M13/1174 , H03M13/616 , H03M13/6362
Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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公开(公告)号：US11665585B2
公开(公告)日：2023-05-30
申请号：US17385338
申请日：2021-07-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Rong Li , Chaolong Zhang , Lingchen Huang , Hejia Luo
CPC classification number: H04W28/04 , H04L1/001 , H04L27/2607 , H04W72/23
Abstract: Examples in this application provide a wireless communication method and device. One example method includes obtaining downlink control information and a scrambled sequence from a network device, where bits corresponding to the scrambled sequence are scrambled with each piece of configuration information of a plurality of pieces of configuration information used for configuring a terminal device by the network device, each piece of the configuration information corresponds to at least one bit in the scrambled sequence, and at least one bit of the bits that correspond to each piece of the configuration information does not correspond to another piece of configuration information of the plurality of pieces of the configuration information, descrambling, based on a possible value of each piece of the configuration information, the bits corresponding to each piece of the configuration information, to obtain a descrambled sequence, and performing a check operation using the descrambled sequence and the DCI.
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公开(公告)号：US11309993B2
公开(公告)日：2022-04-19
申请号：US16692684
申请日：2019-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Wang , Yunfei Qiao , Gongzheng Zhang , Chaolong Zhang , Guijie Wang
Abstract: This application provides a coding and decoding method and apparatus. The method includes: performing polarization coding on first to-be-coded information, to obtain first coded information with a bit sequence length of M, where M is a positive integer; sending the first coded information on a first channel corresponding to the first to-be-coded information; performing polarization coding on second to-be-coded information, to obtain second coded information with a bit sequence length of 2M, where the second to-be-coded information includes the first to-be-coded information, and differences between sequence numbers of information bits corresponding to the first to-be-coded information and sequence numbers of information bits at (M+1)th to 2Mth bit positions in information bits corresponding to the second to-be-coded information are sequentially M in ascending order of sequence numbers.
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15.发明授权公开(公告)号：US11277153B2
公开(公告)日：2022-03-15
申请号：US17013640
申请日：2020-09-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Jin , Ivan Leonidovich Mazurenko , Aleksandr Aleksandrovich Petiushko , Chaolong Zhang
Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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Patent Agency Ranking
公开(公告)号：US11115052B2
公开(公告)日：2021-09-07
申请号：US16700301
申请日：2019-12-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Jin , Wen Tong , Ivanov Ilya , Aleksandr Aleksandrovich Petiushko , Chaolong Zhang
Abstract: This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low density parity check LDPC matrix to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented by a matrix of m rows and n columns, each column corresponds to a group of Z continuous bits in the bit sequence D, and both n and Z are integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting groups of bits corresponding to at least two parity check columns in the bit sequence D.
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公开(公告)号：US11088706B2
公开(公告)日：2021-08-10
申请号：US16719529
申请日：2019-12-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Jin , Ivan Leonidovich Mazurenko , Aleksandr Aleksandrovich Petiushko , Chaolong Zhang
Abstract: This application discloses an encoding method, an apparatus, a communications device, and a communications system. The method includes: encoding an input bit sequence by using a low density parity check LDPC matrix, where the LDPC matrix is obtained based on a lifting factor Z and a base matrix, and the base matrix includes a row 0 to a row 4 and a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B, or the base matrix includes a row 0 to a row 4 and some of a column 0 to a column 26 in one of matrices shown in FIG. 3b-1A to FIG. 3b-8B. According to the encoding method, the apparatus, the communications device, and the communications system, channel coding requirements can be met.
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公开(公告)号：US11076316B2
公开(公告)日：2021-07-27
申请号：US16566500
申请日：2019-09-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Rong Li , Chaolong Zhang , Lingchen Huang , Hejia Luo
Abstract: This application provides a wireless communication method and device. The method includes: scrambling, with each piece of configuration information of a plurality of pieces of configuration information for configuring a terminal device, bits that are included in a cyclic redundancy check (CRC) of downlink control information (DCI) and that correspond to each piece of configuration information, to obtain a scrambled sequence, where at least one bit of bits that correspond to each piece of configuration information does not correspond to another piece of configuration information of the plurality of pieces of configuration information; and sending the DCI and the scrambled sequence to the terminal device.
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公开(公告)号：US10992318B2
公开(公告)日：2021-04-27
申请号：US16673589
申请日：2019-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Wang , Gongzheng Zhang , Hejia Luo , Chaolong Zhang , Rong Li
Abstract: This application provides a coding method and apparatus, and a device. The method includes: dividing, by a sending device, a subchannel location sequence number set into at least two mutually exclusive subsets based on an interleaving operation, where a subchannel location in each subset still belongs to the subset and does not belong to another subset after any quantity of interleaving operations are performed; determining, by the sending device, an information bit location set and a frozen bit location set of a to-be-coded polar polar code based on the at least two mutually exclusive subsets; and coding, by the sending device, the to-be-coded polar code based on the information bit location set and the frozen bit location set. The coding method and apparatus, and the device provided in this application can improve communication performance of polar coding.
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20.发明授权公开(公告)号：US10771092B2
公开(公告)日：2020-09-08
申请号：US16423175
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jie Jin , Ivan Leonidovich Mazurenko , Aleksandr Aleksandrovich Petiushko , Chaolong Zhang
Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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