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公开(公告)号：US11050510B2
公开(公告)日：2021-06-29
申请号：US16423172
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Gongzheng Zhang , Rong Li , Huazi Zhang , Yourui Huangfu , Jian Wang , Ying Chen , Jun Wang
Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i−1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.
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公开(公告)号：US11005504B2
公开(公告)日：2021-05-11
申请号：US16665294
申请日：2019-10-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Huazi Zhang , Yue Zhou , Yunfei Qiao , Hejia Luo , Rong Li , Jun Wang
Abstract: The embodiments of the application provides a polar code rate matching method and apparatus. The method includes: obtaining, by a communications device, to-be-encoded information; determining, by the communications device, a to-be-used rate matching manner based on the code rate, a code rate threshold, a target code length, and a target code length threshold, where the rate matching manner is a puncturing manner or a shortening manner; and rate matching, by the communications device based on the determined rate matching manner, a polar code of the to-be-encoded information.
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公开(公告)号：US10938506B2
公开(公告)日：2021-03-02
申请号：US16885244
申请日：2020-05-27
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Gongzheng Zhang , Hejia Luo , Rong Li , Ying Chen , Yunfei Qiao
Abstract: Embodiments of the application provide a method for rate matching in a wireless communication network. A device obtains K information bits and a target code length M of a polar code, determines, according to a minimum value of a set of values, a mother code length N1, polar encodes the K information bits to obtain an encoded sequence of N1 bits, obtains a target sequence of M bits from the N1 bit encoded sequence, and outputs the M-bit target sequence. When the mother code length N1 is larger than the target code length M, (N1−M) bits of the encoded sequence are punctured or shortened from the N1 bit encoded sequence.
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公开(公告)号：US10784900B2
公开(公告)日：2020-09-22
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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公开(公告)号：US20200177206A1
公开(公告)日：2020-06-04
申请号：US16787045
申请日：2020-02-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Hejia Luo , Yunfei Qiao , Rong Li
Abstract: An interleaving method and apparatus are provided, to reduce complexity of implementation processes of polar code interleaving and rate matching. The method includes: obtaining encoded bits after polar code encoding, and sorting the encoded bits based on a priority order of performing a rate matching operation, to obtain a first bit sequence. The first bit sequence includes j subsequences, and j is a positive integer. The method further includes writing the first bit sequence into an interleaver of i rows and j columns. Bits in a column in the interleaver include one of the j subsequences; and reading out bits from the interleaver column by column, until M bits are read. At least two adjacent columns have opposite readout directions, and M is a target code length.
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Patent Agency Ranking
公开(公告)号：US10673654B2
公开(公告)日：2020-06-02
申请号：US16523954
申请日：2019-07-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Huazi Zhang , Hejia Luo , Rong Li , Jun Wang
Abstract: Embodiments can provide a coding method, a coding apparatus, and a communications apparatus. The method includes: determining N to-be-coded bits, where N is a positive integer; obtaining a first sequence that includes N polar channel sequence numbers; determining a location of an information bit in the N to-be-coded bits based on the first sequence; and performing polar coding on the N to-be-coded bits to obtain coded bits. The location of the information bit in the to-be-coded bits is determined based on the obtained first sequence that includes N polar channel sequence numbers, so that performance of a polar code can be improved.
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公开(公告)号：US10659194B2
公开(公告)日：2020-05-19
申请号：US16145850
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun Wang , Gongzheng Zhang , Huazi Zhang , Chen Xu , Lingchen Huang , Shengchen Dai , Hejia Luo , Yunfei Qiao , Rong Li , Jian Wang , Ying Chen , Nikita Polianskii , Mikhail Kamenev , Zukang Shen , Yourui HuangFu , Yinggang Du
Abstract: This application relates to the field of wireless communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K≤N; selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability; and placing the to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the to-be-encoded bits.
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公开(公告)号：US10567994B2
公开(公告)日：2020-02-18
申请号：US16561027
申请日：2019-09-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Yourui HuangFu , Lingchen Huang , Ying Chen , Yunfei Qiao , Rong Li
Abstract: Embodiments of the application provide a method for transmitting data in a wireless communication network. A device of the network receives a bit sequence of K information bits. The device polar codes the bit sequence to obtain a first encoded sequence, wherein a length of the first encoded sequence is N, and N is greater than or equal to K. The device block interleaves the first encoded sequence to obtain an interleaved bit sequence. The device determines a transmission code rate R. When the transmission code rate R is less than the code rate threshold, the device outputs a second bit sequence. The length of the second bit sequence is M, M is smaller than N. The second bit sequence is punctured from the interleaved bit sequence by removing (N−M) bits from beginning of the interleaved bit sequence.
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公开(公告)号：US20190394674A1
公开(公告)日：2019-12-26
申请号：US16561027
申请日：2019-09-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Yourui HuangFu , Lingchen Huang , Ying Chen , Yunfei Qiao , Rong Li
Abstract: Embodiments of the application provide a method for transmitting data in a wireless communication network. A device of the network receives a bit sequence of K information bits. The device polar codes the bit sequence to obtain a first encoded sequence, wherein a length of the first encoded sequence is N, and N is greater than or equal to K. The device block interleaves the first encoded sequence to obtain an interleaved bit sequence. The device determines a transmission code rate R. When the transmission code rate R is less than the code rate threshold, the device outputs a second bit sequence. The length of the second bit sequence is M, M is smaller than N. The second bit sequence is punctured from the interleaved bit sequence by removing (N−M) bits from beginning of the interleaved bit sequence.
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公开(公告)号：US10439759B2
公开(公告)日：2019-10-08
申请号：US16239910
申请日：2019-01-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Lingchen Huang , Rong Li , Huazi Zhang , Hejia Luo
IPC: H04L1/00
Abstract: Embodiments of this application provides a communication method in a wireless communication network. A communication device obtains an information bit sequence and obtain a first sequence, wherein the first sequence comprises sequence numbers of N channels ordered in ascending order of channel reliability, wherein N is 1024 and wherein a channel whose sequence number is 0, a channel whose sequence number is 1, and a channel whose sequence number is 2 are ordered in ascending order of channel reliability; then polar encode the information bits based on the first sequence to obtain an encoded bit sequence and output the encoded bit sequence.
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