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公开(公告)号：US11063608B2
公开(公告)日：2021-07-13
申请号：US16661931
申请日：2019-10-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Xiaocheng Liu , Lingchen Huang , Yue Zhou , Rong Li , Hejia Luo , Jun Wang
Abstract: A polar code coding/decoding method, a sending device, and a receiving device are disclosed. The method includes: selecting, by a sending device, K non-punctured-position sequence numbers as a reference sequence number set based on a quantity K of information bits and a reliability-based order of N polarized channels of a polar code whose code length is N, where a reliability of a polarized channel corresponding to any sequence number in the reference sequence number set is greater than or equal to reliabilities of polarized channels corresponding to remaining (N−K) sequence numbers; determining, by the sending device, an information-bit sequence number set based on a determining condition and the reference sequence number set; and performing, by the sending device, polar coding on to-be-coded bits based on the information-bit sequence number set.
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公开(公告)号：US11057152B2
公开(公告)日：2021-07-06
申请号：US16582746
申请日：2019-09-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Lingchen Huang , Rong Li , Huazi Zhang , Hejia Luo
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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公开(公告)号：US20200295876A1
公开(公告)日：2020-09-17
申请号：US16831852
申请日：2020-03-27
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chen Xu , Rong Li , Gongzheng Zhang , Yue Zhou , Lingchen Huang , Yunfei Qiao , Carmela Cozzo , Yiqun Ge
Abstract: Embodiments of this application provide a method for encoding data in a wireless communication network. A communication device obtains an information bit sequence of a bit length K and a code length M. When M is greater than or equal to a first threshold and K is greater than or equal to a second threshold, the device divides the information bit sequence into p subsequences that are of an equal length K1. Then the device encodes each of the p subsequence to obtain p encoded subsequences. The device rate-matches each of the p encoded subsequences to obtain p rate matched subsequences, concatenates the p rate matched subsequences to obtain the output sequence of the code length M, then outputs the output sequence.
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公开(公告)号：US20200099467A1
公开(公告)日：2020-03-26
申请号：US16695216
申请日：2019-11-26
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jian Wang , Lingchen Huang , Yunfei Qiao , Rong Li , Jun Wang , Yinggang Du , Yiqun Ge
IPC: H04L1/00
Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.
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公开(公告)号：US20200083908A1
公开(公告)日：2020-03-12
申请号：US16688100
申请日：2019-11-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Huazi Zhang , Rong Li , Lingchen Huang , Yunfei Qiao
Abstract: This application provides a polar code encoding method and apparatus. The method includes: obtaining, by a sending device, a sequence corresponding to a required mother code length; obtaining, by the sending device, a to-be-encoded bit; and performing, by the sending device, polar code encoding on the to-be-encoded bit by using the sequence corresponding to the required mother code length, to obtain an encoded bit, where the sequence is generated based on a basic sequence, and a length of the basic sequence is less than the mother code length.
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Patent Agency Ranking
公开(公告)号：US10425190B2
公开(公告)日：2019-09-24
申请号：US16118685
申请日：2018-08-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Lingchen Huang , Gongzheng Zhang , Yunfei Qiao , Rong Li
IPC: H04L1/00
Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. The method includes: performing CRC encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L=6; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.
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公开(公告)号：US20190053095A1
公开(公告)日：2019-02-14
申请号：US16164833
申请日：2018-10-19
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Gongzheng Zhang , Yourui HuangFu , Lingchen Huang , Ying Chen , Yunfei Qiao , Rong Li
CPC classification number: H04W28/04 , H04L1/0013 , H04L1/0057 , H04L1/0068 , H04L1/0071
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：US12267162B2
公开(公告)日：2025-04-01
申请号：US18512912
申请日：2023-11-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Yinggang Du , Rong Li , Lingchen Huang , Ying Chen
IPC: H04L1/00
Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：US11777532B2
公开(公告)日：2023-10-03
申请号：US17587425
申请日：2022-01-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Xianbin Wang , Lingchen Huang , Rong Li , Yunfei Qiao
IPC: H03M13/00
CPC classification number: H03M13/616
Abstract: An encoding method includes, when a first code rate K/Nmax is less than or equal to a code rate threshold Rt, reading a first matrix from a preset code table based on a second matrix. The second matrix includes a matrix that is read from the preset code table and that corresponds to a maximum supported code length Nmax and Rt, where K is an integer and N is an integer. The method also includes reading K rows and (N−K) columns starting from a preset first location in the first matrix to obtain a third matrix. The method further includes adding a unit matrix with K rows and K columns to a left side of the third matrix to obtain a generator matrix of an (N, K) linear block code. K rows and (Nmax−Nmax×Rt) columns of the second matrix in a first direction are consistent with K rows and (Nmax−Nmax×Rt) columns of the first matrix in a second direction.
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公开(公告)号：US11165535B2
公开(公告)日：2021-11-02
申请号：US16838945
申请日：2020-04-02
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 an 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 first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax, polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K≤N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.
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