公开(公告)号：US11831574B2

公开(公告)日：2023-11-28

申请号：US17692292

申请日：2022-03-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen Liu ,  Xiao Han ,  Rui Du ,  Meihong Zhang ,  Jian Yu

IPC: H04L5/00 ,  H04L25/02

CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L5/0094 ,  H04L25/0204

Abstract: This application provides a method and an apparatus for sensing measurement. In a technical solution of this application, a transmit end of data may send an indication frame to a receive end of the data, where the indication frame may indicate a spatial mapping matrix used by the transmit end of the data to send the data to the receive end of the data. In this way, the receive end of the data can eliminate impact of spatial mapping on channel state information based on the spatial mapping matrix, to obtain actual channel state information, thereby completing sensing, positioning, and the like on an ambient environment or a passive target by using the obtained actual channel state information.

公开(公告)号：US20230379012A1

公开(公告)日：2023-11-23

申请号：US18366406

申请日：2023-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meihong Zhang ,  Rui Du ,  Chenchen Liu ,  Yingxiang Sun ,  Xiao Han ,  Xun Yang

IPC: H04B7/0417 ,  H04B7/0452

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0626

Abstract: A method includes: A first device sends a first BRP frame, to indicate a second device to evaluate a variation of CSI from the first device to the second device in an initiator beam refinement protocol transmit sector sweep procedure. The first device sends a plurality of first BRP-TX PPDUs, where the plurality of first BRP-TX PPDUs are used to evaluate the variation of the CSI from the first device to the second device. The first device receives a second BRP frame carrying a first sector information list, where the first sector information list is used to feed back one or more sending sectors whose variation of the CSI from the first device to the second device is greater than a CSI variation threshold.

公开(公告)号：US20230168372A1

公开(公告)日：2023-06-01

申请号：US18160466

申请日：2023-01-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Du ,  Wen Tong ,  Xiao Han ,  Mingjie Dong ,  Danny Kai Pin Tan ,  Yingxiang Sun ,  Xiaohui Peng ,  Xun Yang

IPC: G01S15/89 ,  G01S7/41

CPC classification number: G01S15/8979 ,  G01S7/414

Abstract: A method for sensing sneezing based on a wireless signal includes obtaining a wireless signal, where the wireless signal propagates in space including a first object. Doppler estimation is performed on the wireless signal, to obtain Doppler information of the wireless signal. The Doppler information of the wireless signal may be used for indicating impact of the first object on a frequency of the wireless signal. Whether the first object is sneeze droplets is determined based on the Doppler information of the wireless signal.

公开(公告)号：US12231994B2

公开(公告)日：2025-02-18

申请号：US17665809

申请日：2022-02-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Du ,  Jian Yu ,  Xiao Han ,  Chenchen Liu

IPC: H04W4/38 ,  H04L1/1607

Abstract: This application provides a sensing method and a communication apparatus. A first device indicates at least one second device to perform a sensing task by using a midamble, and indicates a sensing parameter required by the at least one second device to perform the sensing task. This may enable the at least one second device to perform the sensing task by using the midamble sent by the first device, to implement sensing by using the midamble.

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：US20240380642A1

公开(公告)日：2024-11-14

申请号：US18764828

申请日：2024-07-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Du ,  Xiao Han ,  Mengshi Hu ,  Xun Yang

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

Abstract: A communication method includes a first device that determines channel state information based on a first frame that is used for channel measurement and that is sent by a second device, performs conjugate transpose and QR decomposition to obtain a matrix R and a matrix Q, and sends, to the second device, the matrix Q indicating attribute information of a target path.

公开(公告)号：US12003462B2

公开(公告)日：2024-06-04

申请号：US17668207

申请日：2022-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen Liu ,  Huangxun Chen ,  Xiao Han ,  Rui Du ,  Meihong Zhang ,  Yunbo Li ,  Qian Zhang ,  Jia He

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/006

Abstract: A method includes, in accordance with some implementations, sending, a measurement station, a trigger frame to a signal source station, where the trigger frame carries pilot format information, and the pilot format information is used to indicate a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame. The measurement station receives an illumination frame from the signal source station, where the illumination frame is the signal frame triggered by the trigger frame. The measurement station analyzes pilot information in the illumination frame to obtain sensing information in the illumination frame, where the sensing information is used to indicate physical information of an object surrounding the signal source station and the measurement station.