公开(公告)号：US20230115766A1

公开(公告)日：2023-04-13

申请号：US18073381

申请日：2022-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dandan Liang ,  Ming Gan ,  Zhengchun Zhou ,  Xianfu Lei ,  Yang Yang ,  Xiaohu Tang ,  Wei Lin ,  Chenchen Liu

IPC: H04L5/00 ,  H04L1/00

Abstract: Embodiments of this application provide a method and an apparatus for transmitting a physical layer protocol data unit, to design a short training field sequence for a larger channel bandwidth. The short training field sequence designed in this application has a smaller peak-to-average power ratio PAPR and better performance. The method includes: generating a physical layer protocol data unit PPDU that complies with the 802.11be standard, where the PPDU includes a short training field, and a quantity of subcarriers of a frequency domain sequence of the short training field is greater than 2048; and sending the PPDU on a target channel, where a bandwidth of the target channel is greater than or equal to 160 MHz.

公开(公告)号：US20250055731A1

公开(公告)日：2025-02-13

申请号：US18920006

申请日：2024-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhengchun Zhou ,  Rui Du ,  Yajing Zhou ,  Xiaohu Tang ,  Chenchen Liu ,  Xiao Han

IPC: H04L25/02 ,  H04W84/12

Abstract: A communication method includes generating a first sequence, where the first sequence is based on a complete complementary code set, the complete complementary code set is based on a Golay pair and a Hadamard matrix through a Kronecker product operation, and the first sequence is used for channel estimation; and sending the first sequence. In the method, use of a P-matrix is avoided in a process of constructing a plurality of streams of zero correlation sequences.

公开(公告)号：US20250106078A1

公开(公告)日：2025-03-27

申请号：US18973744

申请日：2024-12-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Qian ,  Zhengchun Zhou ,  Chenchen Liu ,  Yang Yang ,  Xun Yang ,  Xiaohu Tang

IPC: H04L27/26 ,  H04L25/03

Abstract: A method includes sending, by a communication apparatus, configuration information. The configuration information includes a quantity of cyclic shift positions that corresponds to each device, the quantity of cyclic shift positions is used to cyclically shift a perfect sequence, and quantities that are of cyclic shift positions and that correspond to devices used for completing different services are different. The method is applied to an ultra-wideband (UWB)-based wireless personal local area network system, a sensing system, and the like, including 802.15 series protocols, such as an 802.15.4a protocol, an 802.15.4z protocol, or an 802.15.4ab protocol. The method is further applied to a wireless local area network system that can support a next-generation WI-FI protocol of 802.11ax, such as 802.11be, Wi-Fi 7, or extremely high-throughput (EHT), and 802.11 series protocols, such as a next generation of 802.11be or WI-FI 8.

公开(公告)号：US20250048332A1

公开(公告)日：2025-02-06

申请号：US18914870

申请日：2024-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Qian ,  Zhengchun Zhou ,  Chenchen Liu ,  Yang Yang ,  Xun Yang

IPC: H04W64/00

Abstract: An ultra-wideband (UWB) signal transmission method includes that a plurality of initiators simultaneously sends a UWB signal. A UWB signal sent by any initiator is obtained by performing pulse shaping and modulation on a first sequence. The first sequence is obtained by performing a cyclic shift on a second sequence, and a number of cyclic shift bits is determined based on a shift factor and a step size of the cyclic shift that are of the any initiator. A responder determines time of arrival of the plurality of UWB signals based on the plurality of received UWB signals and the second sequence.

公开(公告)号：US20220311566A1

公开(公告)日：2022-09-29

申请号：US17744133

申请日：2022-05-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dandan Liang ,  Zhi Gu ,  Wei Lin ,  Ming Gan ,  Xianfu Lei ,  Zhengchun Zhou

IPC: H04L5/00 ,  H04W72/04

Abstract: This application provides a method and apparatus for transmitting a physical layer protocol data unit, so as to design a long training field sequence for a larger channel bandwidth. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a long training field, a length of a frequency domain sequence of the long training field is greater than a first length, and the first length is a length of a frequency domain sequence of a long training field of a PPDU transmitted over a channel whose bandwidth is 160 MHz; and sending the PPDU over a target channel, where a bandwidth of the target channel is greater than 160 MHz.