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公开(公告)号：US11057052B2
公开(公告)日：2021-07-06
申请号：US16564774
申请日：2019-09-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Rong Li , Jun Wang , Ying Chen , Huazi Zhang
Abstract: A data processing method is disclosed, and the method includes: receiving, by an encoding end, a to-be-encoded data block; obtaining, by the encoding end, a first mother code element for each first indication element in a first indication sequence based on an association relationship in which S=Q+B*N0 when B>0, and S=Q when B=0; and placing the first mother code element at a location of the first indication element in the first indication sequence to obtain a first mother code sequence.
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公开(公告)号：US11050508B2
公开(公告)日：2021-06-29
申请号：US16522386
申请日：2019-07-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yue Zhou , Rong Li , Gongzheng Zhang , Yinggang Du , Jun Wang
Abstract: This application provides a polar code encoding method and apparatus. The method includes: segmenting, by a sending device, a to-be-encoded sequence according to a preset rule; determining a quantity of parity check frozen bits, locations of the parity check frozen bits, a quantity of information bits, locations of the information bits, a quantity of frozen bits, and locations of the frozen bits in each segment; then placing the information bits and the frozen bits at the corresponding locations; determining values of the parity check frozen bits; then performing polar code encoding on the to-be-encoded sequence; and sending an encoded sequence. According to this method, a process of determining the quantity of parity check frozen bits and the locations of the parity check frozen bits is simplified, thereby effectively improving processing efficiency.
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公开(公告)号：US20210194733A1
公开(公告)日：2021-06-24
申请号：US17196337
申请日：2021-03-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yourui Huangfu , Rong Li , Jian Wang , Shengchen Dai , Jun Wang , Rongdao Yu
IPC: H04L25/02
Abstract: A channel prediction method and a related device, where the method includes: obtaining a first channel coefficient sequence in a first time period, where the first channel coefficient sequence includes a plurality of complex values of a channel coefficient; and determining a prediction value of the channel coefficient in a second time period based on the first channel coefficient sequence and a preset vocabulary of channel changes, where the preset vocabulary of channel changes includes a mapping relationship between a channel change value index and each change value of the channel coefficient, and where the second time period is later than the first time period.
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公开(公告)号：US20210184696A1
公开(公告)日：2021-06-17
申请号：US17188588
申请日：2021-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Wang , Huazi Zhang , Rong Li
Abstract: A polar code encoding method and apparatus, the method including determining a sorted sequence to encode to-be-encoded bits, where the sorted sequence represents reliability sorting of N polar channels, where N is a mother code length of a polar code, where N is a positive integer, where N is a power of two, and where a minimum sequence number of polar channels in the sorted sequence is 1, obtaining encoded bits by the apparatus by performing polar code encoding on the to-be-encoded bits using the sorted sequence, and outputting, by the apparatus, the encoded bits.
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公开(公告)号：US11025278B2
公开(公告)日：2021-06-01
申请号：US16519988
申请日：2019-07-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Huazi Zhang , Yunfei Qiao , Rong Li , Jun Wang , Guijie Wang
Abstract: The present disclosure relates to polar encoding methods and apparatus. One example method includes obtaining locations of information bits and frozen bits based on a reliability order of polar channels, where reliability of a polar channel corresponding to the information bits is higher than reliability of a polar channel corresponding to the frozen bits, performing cyclic redundancy check (CRC) encoding on an information block, mapping bits obtained after the CRC encoding to the information bits, determining at least one bit of the frozen bits as a check frozen bit, where a value of the check frozen bit is determined based on values of P information bits that are in information bits prior to the check frozen bit and that meet a preset condition, and performing polar encoding on the information bits, the check frozen bit, and a frozen bit other than the check frozen bit.
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Patent Agency Ranking
公开(公告)号：US10972130B2
公开(公告)日：2021-04-06
申请号：US16521605
申请日：2019-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chaolong Zhang , Lingchen Huang , Hejia Luo , Rong Li , Jun Wang
Abstract: An encoding method, an encoding apparatus, a decoding method, and a decoding apparatus are provided. The encoding method includes: determining a size of a shift matrix based on a length of an information sequence and a length of an identifier sequence; constructing a check matrix based on the size of the shift matrix and a base matrix; and performing low-density parity-check LDPC encoding on the information sequence and the identifier sequence based on the check matrix. The identifier sequence is a non-all-zero sequence. Because the encoded codeword includes information of the identifier sequence, a receive device can identify whether information corresponding to the encoded codeword is addressed to the receive device, thereby improving information processing efficiency in the transmission.
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公开(公告)号：US10965322B2
公开(公告)日：2021-03-30
申请号：US16689816
申请日：2019-11-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jian Wang , Huazi Zhang , Rong Li
Abstract: A polar code encoding method and apparatus are provided, to improve accuracy of reliability sorting of polar channels. The method is: determining a sorted sequence used to encode to-be-encoded bits, where the sorted sequence is used to represent reliability sorting of N polar channels, N is a mother code length of a polar code, and N is a positive integer power of 2; and performing polar code encoding on the to-be-encoded bits by using the sorted sequence, to obtain encoded bits.
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公开(公告)号：US10951356B2
公开(公告)日：2021-03-16
申请号：US16586385
申请日：2019-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Yunfei Qiao , Yue Zhou
Abstract: Embodiments of this application provide a method for processing information bits. 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, modulates the rate matched sequence to obtain 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：US10924210B2
公开(公告)日：2021-02-16
申请号：US16558285
申请日：2019-09-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Rong Li , Huazi Zhang , Hejia Luo , Gongzheng Zhang
Abstract: Embodiments provide a polar code encoding and decoding method in a communications system. Under the method, a basic quantized sequence can be obtained. The basic quantized sequence includes a quantized value used to represent reliability corresponding to a polarized subchannel. A target quantized sequence based on the basic quantized sequence can also be obtained. A relative magnitude relationship between elements in the target quantized sequence is nested with a relative magnitude relationship between elements in the basic quantized sequence. K largest quantized values in the target quantized sequence can be determined based on a non-fixed bit length K and polarized subchannels corresponding to the K largest quantized values can be used as a non-fixed bit position set. Polar code encoding or decoding can be performed based on the non-fixed bit position set.
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公开(公告)号：US10892850B2
公开(公告)日：2021-01-12
申请号：US16265224
申请日：2019-02-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: A method and an apparatus for carrying identification information are disclosed, to extend a quantity of bit positions that can represent identification information. The method includes determining, by a base station, bit locations that can be used to carry identification information in to-be-coded bits, where the bit locations that can be used to carry the identification information include locations of fixed bits, the identification information is used to identify a terminal, and the fixed bits are used by the terminal to perform error correction in a decoding process, adding, by the base station, the identification information to the bit locations, and encoding, by the base station in a polar code encoding mode, the to-be-coded bits that carry the identification information, and sending an encoded polar code to the terminal.
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