公开(公告)号：US20240405916A1

公开(公告)日：2024-12-05

申请号：US18806876

申请日：2024-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiaqi GU ,  Jiahui LI ,  Mengyao MA ,  Zihan TANG ,  Wei LIN

IPC: H04L1/00

Abstract: The method includes: obtaining an input information bit sequence; determining a target matrix based on a first polar code generation matrix and a transformation matrix; encoding the input information bit sequence based on an inverse matrix of a first matrix, to obtain a first bit sequence, where the input information bit sequence is a bit sequence corresponding to an information bit, and the first matrix is a submatrix formed by a row corresponding to the information bit and a column corresponding to the information bit that are in the target matrix; and encoding the first bit sequence based on a second matrix, to obtain a second bit sequence, where the second matrix is a submatrix formed by the row corresponding to the information bit and a column corresponding to a frozen bit that are in the target matrix.

公开(公告)号：US20230275687A1

公开(公告)日：2023-08-31

申请号：US18142673

申请日：2023-05-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiahui LI ,  Mengyao MA ,  Wei LIN ,  Yan CHEN ,  Xun YANG

IPC: H04L1/00

CPC classification number: H04L1/0013 ,  H04L1/0036

Abstract: This application provides a coding method and a communication apparatus, which may be applied to wireless data transmission. The method includes: A sending apparatus sends indication information to a receiving apparatus, where the indication information indicates first information and second information. The first information indicates a coding scheme of to-be-encoded data, and the coding scheme includes a coding matrix for channel coding and a channel coding mode. The second information indicates a distribution feature of the to-be-encoded data. The sending apparatus performs channel coding on the to-be-encoded data based on the coding scheme, to obtain encoded data. The receiving apparatus receives the indication information sent by the sending apparatus, and the receiving apparatus performs channel decoding on received data based on the indication information, to obtain decoded data.

公开(公告)号：US20220352904A1

公开(公告)日：2022-11-03

申请号：US17856645

申请日：2022-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guido MONTORSI ,  Sergio BENEDETTO ,  Wei LIN ,  Yan XIN

IPC: H03M13/11 ,  H03M13/00

Abstract: An LDPC code encoding method and a communication apparatus are described that provide increased redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. A check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.

公开(公告)号：US20220286337A1

公开(公告)日：2022-09-08

申请号：US17745344

申请日：2022-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Ming GAN ,  Yang YANG ,  Xianfu LEI ,  Chenchen LIU ,  Zhengchun ZHOU ,  Wei LIN ,  Xiaohu TANG

IPC: H04L27/26 ,  H04W72/04

Abstract: Example methods for transmitting a physical layer protocol data unit (PPDU) and apparatus are described. One example method includes generating and transmitting a PPDU that includes a long training field (LTF). A length of a frequency-domain sequence of the LTF is greater than a first length, and the first length is a length of a frequency-domain sequence of an LTF of a first PPDU transmitted over a channel whose bandwidth is 160 MHz.

公开(公告)号：US20220006591A1

公开(公告)日：2022-01-06

申请号：US17342771

申请日：2021-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao HAN ,  Wei LIN ,  Jian YU ,  Cailian DENG ,  Rui DU ,  Xuming FANG

IPC: H04L5/00 ,  H04W52/02 ,  G01S7/41

Abstract: Embodiments of this application relate to the communications field, and in particular, to an information indication method and apparatus in the communications field. The embodiments of this application include: generating a PPDU including radar indication information, where the radar indication information is used to indicate that the PPDU is a PPDU used for radar testing, and transmitting the PPDU. According to the method provided in the embodiments of this application, the transmit end explicitly indicates that the PPDU is a PPDU used for radar testing rather than a PPDU used for communication between communications devices. When a receive end receives the PPDU, the receive end no longer monitors a channel, thereby reducing power consumption of the receive end.

公开(公告)号：US20210250147A1

公开(公告)日：2021-08-12

申请号：US17241689

申请日：2021-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Min YAN ,  Guangjian WANG ,  Wei LIN ,  Mengyao MA ,  Yanchun LI

IPC: H04L5/00

Abstract: A communications apparatus includes a processor configured to generate a radio frame. The radio frame comprises a data block. The data block comprises a plurality of N pilot blocks, a plurality of M sub-data blocks, and one guard interval (GI). Every two N pilot blocks of the plurality of N pilot blocks are not adjacent. The GI is located at a tail end of the data block, 4≤N≤8, N is an integer, M≥N−1, and M is an integer. The communications apparatus also includes transceiver configured to send the radio frame to a receiver.

公开(公告)号：US20180367276A1

公开(公告)日：2018-12-20

申请号：US16115296

申请日：2018-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin XUE ,  Ju CAO ,  Le LIU ,  Ningjuan WANG ,  Wei LIN

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/0452

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04L25/03866 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/262

Abstract: A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

公开(公告)号：US20250132862A1

公开(公告)日：2025-04-24

申请号：US19005807

申请日：2024-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei LIN ,  Bin QIAN ,  Xun YANG ,  Guido MONTORSI ,  Sergio BENEDETTO

IPC: H04L1/00 ,  H03M13/11 ,  H04B1/7176

Abstract: This application relates to a method for determining a length of an low-density parity-check (LDPC) code word in a ultra-wideband (UWB) system and a related apparatus. The method includes a communication apparatus that determines a length of an LDPC code based on a length of a to-be-encoded information bit. When the length of the information bit ranges from 0 to 324, a 648-bit LDPC code is selected. When the length of the information bit ranges from 325 to 648 or from 973 to 1296, a 1296-bit LDPC code is selected. When the length of the information bit ranges from 649 to 972, a 1944-bit LDPC code is selected. According to embodiments of this application, higher performance gain can be achieved.

公开(公告)号：US20230179461A1

公开(公告)日：2023-06-08

申请号：US18105383

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Yang YANG ,  Xun YANG ,  Xianfu LEI ,  Ming GAN ,  Xiaohu TANG ,  Wei LIN ,  Lanping LI

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L27/2614

Abstract: An example physical layer protocol data unit (PPDU) transmission method includes generating, by a first communication device, a PPDU, where the PPDU includes a long training field (LTF) sequence. The first communication device can send the PPDU. A second communication device can receive the PPDU. The second communication device can parse the received PPDU to obtain the LTF sequence included in the PPDU.

公开(公告)号：US20220329348A1

公开(公告)日：2022-10-13

申请号：US17572302

申请日：2022-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiahui LI ,  Min YAN ,  Mengyao MA ,  Wei LIN

IPC: H04L1/00

Abstract: In a data processing method, a transmit end may send, to a receive end, coding information of N layers of first bit sequences and second information that does not include some or all bits in the N layers of first bit sequences, and the receive end may process the coding information and the second information, to obtain the N layers of first bit sequences. Because the transmit end sends the coding information to the receive end, information sent by the transmit end may not include some or all bits in the N layers of first bit sequences.