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.