公开(公告)号：US20230387939A1

公开(公告)日：2023-11-30

申请号：US18366757

申请日：2023-08-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Wen Tong ,  Jun Wang ,  Rong Li ,  Jiajie Tong ,  Xianbin Wang

IPC: H03M13/11

CPC classification number: H03M13/118 ,  H03M13/1174

Abstract: A sending device may obtain a first to-be-encoded vector. The sending device may perform first encoding on the first to-be-encoded vector, to obtain a second to-be-encoded vector. The sending device may encode the second to-be-encoded vector based on a first generator matrix, to obtain an encoded codeword. The first generator matrix may include at least N+1 submatrices a, and N of the submatrices a may be located on a main diagonal of the first generator matrix. The first generator matrix may be a block upper triangular matrix, or the first generator matrix may be a block lower triangular matrix. The submatrix a is a polar kernel matrix with a size of 2m*2m, m is a natural number, and N is a natural number. The sending device may send the encoded codeword.

公开(公告)号：US20230370148A1

公开(公告)日：2023-11-16

申请号：US18360842

申请日：2023-07-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Hu ,  Jian Wang ,  Chuili Kong ,  Rong Li

IPC: H04B7/06

CPC classification number: H04B7/06952 ,  H04B7/0632

Abstract: This disclosure provides a beam management method and apparatus, to quickly implement beam alignment. The beam management method is applied to a first device and includes: obtaining a first reference signal sent by a second device based on a first set beam, and determining a first beam based thereon such that a signal quality of the first reference signal obtained by the first device based on the first beam is the best; and sending a second reference signal to the second device based on the first beam, where the second reference signal is used to determine a second beam of the second device, and a signal quality of the second reference signal obtained by the second device based on the second beam is the same as that of the first reference signal obtained by the first device based on the first beam.

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.

公开(公告)号：US20230308219A1

公开(公告)日：2023-09-28

申请号：US18041780

申请日：2021-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying Chen ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jun Wang

IPC: H04L1/1812

CPC classification number: H04L1/1812

Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.

公开(公告)号：US20230308117A1

公开(公告)日：2023-09-28

申请号：US18176217

申请日：2023-02-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huazi Zhang ,  Xianbin Wang ,  Jiajie Tong ,  Shengchen Dai ,  Rong Li ,  Jun Wang

IPC: H03M13/15 ,  H03M13/00

CPC classification number: H03M13/152 ,  H03M13/616 ,  H03M13/6362

Abstract: An encoding method and apparatus are provided, to propose a construction and encoding scheme of a BCH code. A code length and a code rate of an obtained BCH code are flexible, to satisfy a requirement of flexible channel encoding in wireless communication. The method includes determining a first encoding parameter based on a first BCH code, where the first BCH code is a to-be-coded BCH code, the first encoding parameter is a first code or a generator matrix of a first code, the first code has a code length of n and an information bit length of k, n is greater than o, and k is greater than o, and performing BCH encoding based on the first encoding parameter.

公开(公告)号：US20230307009A1

公开(公告)日：2023-09-28

申请号：US18327377

申请日：2023-06-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rong Li ,  Liangyun Wang ,  Min Wei ,  Guanglin Lin

IPC: G11B33/12 ,  G11B33/08 ,  G11B33/14

CPC classification number: G11B33/126 ,  G11B33/08 ,  G11B33/142

Abstract: A hard drive backplane has a plurality of ventilation holes, and the expansion cavity muffler is mounted in the ventilation holes of the hard drive backplane. The expansion cavity muffler includes at least one expansion cavity and at least one connecting pipe in communication in a first direction. The connecting pipe at one end of the expansion cavity muffler facing toward the hard drive backplane is fixedly mounted in the ventilation hole such that the expansion cavity muffler is in communication with the ventilation hole. An area of a cross-section that is of each expansion cavity and that is perpendicular to the first direction is larger than an area of a cross-section that is of the connecting pipe adjacent to the expansion cavity and that is perpendicular to the first direction. The first direction is perpendicular to a surface of the hard drive backplane.

公开(公告)号：US20230283406A1

公开(公告)日：2023-09-07

申请号：US18186912

申请日：2023-03-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianbin Wang ,  Shengchen Dai ,  Huazi Zhang ,  Jiajie Tong ,  Rong Li ,  Jun Wang

IPC: H04L1/00

CPC classification number: H04L1/0057

Abstract: This application provides a coding method and apparatus. The method includes: obtaining a to-be-coded sequence whose length is N, where the to-be-coded sequence is obtained after an information bit is placed at an information bit position, a frozen bit is placed at a frozen bit position, and first preset bits are placed at a plurality of shaping bit positions in a first position sequence, bits corresponding to the plurality of shaping bit positions after polar coding belong to a plurality of different subcodes of inner code, and shaping bit positions whose corresponding bits after polar coding belong to a same subcode of inner code belong to a same group of shaping bit positions (S501); performing outer code coding on the to-be-coded sequence, to obtain a first outer code sequence whose length is N (S502); obtaining, in parallel based on the first outer code sequence, a plurality of first outer code codeword bits corresponding to a plurality of shaping bit position groups (S503); obtaining a target outer code sequence based on the first outer code sequence and the plurality of first outer code codeword bits (S504); and performing inner code coding on the target outer code sequence, to obtain and output a coded sequence (S505). PAS coding latency can be reduced.

公开(公告)号：US20230224843A1

公开(公告)日：2023-07-13

申请号：US18182885

申请日：2023-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu Wang ,  Hejia Luo ,  Rong Li ,  Jun Wang

IPC: H04W56/00

CPC classification number: H04W56/005 ,  H04W56/0015

Abstract: Embodiments of this application provide a timing offset parameter update method, a device, and a system, and relate to the field of communication technologies, to help reduce signaling overheads generated when a network device updates a value of a timing offset parameter. The method includes: A terminal device obtains first information that includes a first reference value and first indication information, where the first indication information indicates an update rule of a timing offset parameter, and the first reference value is an initial value of the timing offset parameter. The terminal device updates a value of the timing offset parameter based on the first information and a timing offset variation, to obtain an updated value of the timing offset parameter, where an absolute value of the timing offset variation is equal to an absolute value of a difference between any two consecutively updated values of the timing offset parameter.

公开(公告)号：US11528040B2

公开(公告)日：2022-12-13

申请号：US16849643

申请日：2020-04-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingmin Zhao ,  Gongzheng Zhang ,  Chen Xu ,  Rong Li

IPC: H03M13/13 ,  H03M13/00 ,  H04L1/18

Abstract: This disclosure provides a data retransmission method and apparatus. The method includes: A transmitting device obtains information to be transmitted for a tth time, where the information to be transmitted for the tth time includes Rt extension locations and information to be transmitted for a (t−1)th time, and the extension locations include Mt information bits and Lt check bits corresponding to the Mt information bits. The transmitting device then performs Polar encoding on the information to be transmitted for the tth time, to obtain a codeword after the Polar encoding, obtains a codeword for (t−1)th retransmission based on the codeword after the Polar encoding, and transmits the codeword for (t−1)th retransmission. A receiving device performs polar decoding after receiving the codeword for (t−1)th retransmission, to obtain a decoding result of codewords for t times of transmission. By performing, on an encoding side, check encoding on the information bits in an extension part, a decoding path can be reduced in a decoding process, thereby greatly reducing decoding complexity, and reducing storage overheads and calculation overheads.

公开(公告)号：US11424963B2

公开(公告)日：2022-08-23

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.