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公开(公告)号：US10560175B2
公开(公告)日：2020-02-11
申请号：US16265837
申请日：2019-02-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04B7/06
Abstract: This application provides a data transmission method and an apparatus. The method includes: obtaining, by user equipment, to-be-sent user data; performing, by the user equipment, channel encoding on the to-be-sent user data to obtain N sets of encoded data; performing, by the user equipment, codebook mapping on each of the N sets of encoded data by using a codebook, to obtain N sets of codebook-mapped data, where different sets of encoded data use codebooks that occupy mutually different non-zero physical REs, the non-zero physical RE means a non-zero waveform obtained after mapped data is mapped to a physical RE, and N is a positive integer greater than or equal to 2; and sending, by the user equipment, the N sets of codebook-mapped data to a base station.
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公开(公告)号：US20230361860A1
公开(公告)日：2023-11-09
申请号：US18355504
申请日：2023-07-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei Qiao , Yue Zhou , Ying Chen , Yinggang Du
IPC: H04B7/185
CPC classification number: H04B7/18513 , H04B7/18519
Abstract: Embodiments of this application provide a wireless communication method, and an apparatus. The method includes: A first communication apparatus receives first satellite information from a second communication apparatus, where the first satellite information includes a floating-point value of a satellite parameter; the first communication apparatus determines second satellite information based on a reference value of the satellite parameter and the first satellite information; and communicates with the second communication apparatus based on the second satellite information. The second satellite information is a complete value of the satellite parameter. The satellite parameter is represented as the reference value and the floating-point value.
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公开(公告)号：US11303298B2
公开(公告)日：2022-04-12
申请号：US16914775
申请日：2020-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue Zhou , Rong Li , Hejia Luo , Huazi Zhang , Ying Chen
Abstract: Embodiments of this application disclose encoding and decoding methods and apparatus related to the communications. One of the methods includes: obtaining, based on polar code rate matching, a subchannel corresponding to a punctured bit or a shortened bit; determine subchannels corresponding to an information bit and a check frozen bit that are different from the subchannel corresponding to the punctured bit or the shortened bit; determining that a subchannel corresponding to a frozen bit that is different from the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the punctured bit or the shortened bit; performing, according to the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the frozen bit, parity check encoding and polar encoding based on the information bit to obtain encoded information; and sending the encoded information.
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公开(公告)号：US11251903B2
公开(公告)日：2022-02-15
申请号：US16817626
申请日：2020-03-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Xu , Rong Li , Gongzheng Zhang , Yue Zhou , Lingchen Huang
Abstract: Embodiments of this application provide an information processing method and a coding apparatus. An information bit sequence includes a K-bit information block. The information bit sequence is to be processed into an encoded bit sequence with a target code length M. For a given code rate R, when the length K of the information block is greater than a preset threshold, the information bit sequence is segmented into two or more segments. Each segment is polar encoded into an encoded subsequence. The encoded subsequence has a length that equals to a mother code length Ni, and i=1, 2, . . . , p. Each of the p encoded subsequences is rate matched to obtain a rate-matched encoded subsequence. A rate-matched encoded subsequence i of the p rate-matched encoded subsequences has a code length Mi. The p rate-matched encoded subsequences are concatenated into an encoded bit sequence which has a code length M.
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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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Patent Agency Ranking
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：US10574266B2
公开(公告)日：2020-02-25
申请号：US16398282
申请日：2019-04-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huazi Zhang , Rong Li , Yue Zhou , Hejia Luo , Gongzheng Zhang , Yunfei Qiao
Abstract: Embodiments of this application provide a method for transmitting encoded information. A communication device obtains K bits of information, and generates a to-be-encoded sequence u1N, wherein N is a length of the sequence. The device encodes the sequence u1N in an encoding process, to obtain an output sequence, and transmits the output sequence. In the sequence u1N, each of the N bits corresponds to a subchannel, and each subchannel has a reliability. The K information bits, a quantity J of first-type auxiliary bits, and a quantity J′ of second-type auxiliary bits are placed in K′=K+J+J′ bit positions of the sequence u1N according to reliabilities of the subchannels. Since the positions of the information bits and the auxiliary bits are pre-determined and not affected by subsequent encoding and rate-matching, overheads of real-time reliability calculation are effectively reduced, time is saved, and delay is reduced.
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公开(公告)号：US20190260503A1
公开(公告)日：2019-08-22
申请号：US16398282
申请日：2019-04-30
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Huazi Zhang , Rong Li , Yue Zhou , Hejia Luo , Gongzheng Zhang , Yunfei Qiao
IPC: H04L1/00
Abstract: Embodiments of this application provide a method for transmitting encoded information. A communication device obtains K bits of information, and generates a to-be-encoded sequence u1N, wherein N is a length of the sequence. The device encodes the sequence u1N in an encoding process, to obtain an output sequence, and transmits the output sequence. In the sequence u1N, each of the N bits corresponds to a subchannel, and each subchannel has a reliability. The K information bits, a quantity J of first-type auxiliary bits, and a quantity J′ of second-type auxiliary bits are placed in K′=K+J+J′ bit positions of the sequence u1N according to reliabilities of the subchannels. Since the positions of the information bits and the auxiliary bits are pre-determined and not affected by subsequent encoding and rate-matching, overheads of real-time reliability calculation are effectively reduced, time is saved, and delay is reduced.
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公开(公告)号：US20190215099A1
公开(公告)日：2019-07-11
申请号：US16354194
申请日：2019-03-15
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Yunfei Qiao , Yue Zhou
IPC: H04L1/00
CPC classification number: H04L1/0041 , H03M13/13 , H04L1/0057 , H04L1/0061 , H04L1/0068
Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device obtains K information bits and a code length M. The code length M is a length of an output sequence resulting from processing the information bits. The communication device generates an N-bit bit sequence that includes the K information bits and one or more parity check bits, encodes the bit sequence using a polar encoding formula to obtain an N-bit encoded sequence, rate matches the encoded sequence to obtain the output sequence, and outputs the output sequence. When M−K>192, in the bit sequence, one of the parity check bits is placed in a bit position that is determined according to reliabilities of the bit positions in the bit sequence for placing the K information bits and the one or more parity check bits.
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公开(公告)号：US11251904B2
公开(公告)日：2022-02-15
申请号：US16778812
申请日：2020-01-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L1/00
Abstract: This application relates to the field of communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability computation and sorting of polar channels. The method is: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polar channels, and the sequence numbers of the N polar channels are arranged in the first sequence based on corresponding reliabilities of the N polar channels, where K is a positive integer, N is a mother code length of a polar code, N is a positive integer that is a power of 2, and K≤N; selecting sequence numbers of K polar channels from the first sequence in descending order of the reliabilities; and placing the to-be-encoded bits based on the selected sequence numbers of the K polar channels, and performing polar code encoding on the to-be-encoded bits.
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