公开(公告)号：US20190271775A1

公开(公告)日：2019-09-05

申请号：US15983065

申请日：2018-05-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Youngsin Lee ,  Ning Zhang ,  Erik Lindskog ,  Vincent Knowles Jones, IV

IPC: G01S13/56 ,  H04W64/00 ,  H04W52/02 ,  H04W4/38 ,  G01S13/00

Abstract: This disclosure provides systems, methods and apparatuses for detecting motion based on one or more wireless signals. In some implementations, a receiving device may receive a first frame and a second frame from a transmitting device, may determine a first channel impulse response (CIR) based on the first frame, may determine a second CIR based on the second frame, may determine a difference between a shape of the first CIR and a shape of the second CIR, and may detect motion based on the determined difference.

公开(公告)号：US20180227714A1

公开(公告)日：2018-08-09

申请号：US15786548

申请日：2017-10-17

Applicant: QUALCOMM Incorporated

Inventor： Youngsin Lee ,  Xiaoxin Zhang

IPC: H04W4/02 ,  G01S5/02

CPC classification number: H04W4/027 ,  G01S5/0273 ,  H04L67/12 ,  H04W4/70 ,  H04W84/12

Abstract: Method, apparatus and systems for detecting motion of an object based on a received wireless signal include comparing a received wireless signal to an adaptive noise immunity threshold, if the received wireless signal satisfies the adaptive noise immunity threshold. The detecting motion is based at least in part on a comparison between a determined multipath amount of the received wireless signal and a reference multipath amount, and further by adjusting the adaptive noise immunity threshold from a first level to a second level prior to the comparing of the received wireless signal to the noise immunity threshold, where the second level is higher than the first level.