公开(公告)号：US20220329968A1

公开(公告)日：2022-10-13

申请号：US17229794

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Rishabh RAJ ,  Xiaoxin ZHANG ,  Parthiban ELLAPPAN ,  Shree Raman SRINIVASAN ,  Ravindra CHAUHAN

IPC: H04W4/02 ,  H04W4/80 ,  H04W80/06 ,  H04W72/08

Abstract: Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.

公开(公告)号：US20230276198A1

公开(公告)日：2023-08-31

申请号：US18043643

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Rishabh RAJ ,  Xiaoxin ZHANG ,  Ravindra CHAUHAN

IPC: H04W4/029 ,  H04W4/02

CPC classification number: H04W4/029 ,  H04W4/023

Abstract: Techniques are provided for utilizing Wi-Fi positioning based contact tracing. An example method for reporting signal measurements to a contact tracing network includes activating a contact tracing application on a user equipment based on a proximity to the contact tracing network, receiving one or more measurement signals from a station in the contact tracing network, and reporting a signal measurement and station identification to a network entity.

公开(公告)号：US20230071554A1

公开(公告)日：2023-03-09

申请号：US17470061

申请日：2021-09-09

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin ZHANG ,  Le Nguyen LUONG ,  Liang ZHAO ,  Rishabh RAJ ,  Ravindra CHAUHAN

IPC: G07C9/00 ,  H04W76/16

Abstract: Techniques are provided for improving ranging accuracy of ultrawideband (UWB) devices. An example method for obtaining a distance measurement with a wireless node includes obtaining a first distance measurement using a first radio link, determining a status of a second radio link in response to the first distance measurement being less than a threshold distance, configuring one or more transceiver parameters associated with the second radio link in response to determining the second radio link is utilizing a non-line of sight path, and obtaining a second distance measurement using the second radio link and the one or more transceiver parameters.

公开(公告)号：US20230319504A1

公开(公告)日：2023-10-05

申请号：US18326744

申请日：2023-05-31

Applicant: QUALCOMM Incorporated

Inventor： Rishabh RAJ ,  Xiaoxin ZHANG ,  Parthiban ELLAPPAN ,  Shree Raman SRINIVASAN ,  Ravindra CHAUHAN

IPC: H04W4/02 ,  H04W4/80 ,  H04W80/06 ,  H04W72/54

CPC classification number: H04W4/023 ,  H04W4/80 ,  H04W4/025 ,  H04W80/06 ,  H04W72/54 ,  H04W84/18

Abstract: Disclosed are systems and techniques for performing mapping using radio frequency (RF) sensing. For instance, a server can obtain a first set of RF sensing data and orientation data corresponding to a first wireless device from a plurality of wireless devices. The first set of RF sensing data can be associated with at least one received waveform that is a reflection of a transmitted waveform from a first reflector. Based on the first set of RF sensing data, orientation data, and location data corresponding to the first wireless device, an indoor map can be generated that includes a reference to the reflector.