Systems and methods for determining device location properties using channel state information

Abstract

Systems and methods for determining device location properties of a wireless device, such as a smartphone, are provided. The system includes a processor configured to receive, via a plurality of wireless receivers arranged in a monitoring area, a wireless signal. The wireless signal is transmitted by the wireless device proximate to the subject. The wireless signal includes an identifier, such as a Bluetooth identifier, corresponding to the wireless device. The processor is further configured to determine CSI for a subject based on the received wireless signal. The processor is further configured to determine the one or more device location properties based on the determined CSI and a body-mass signature corresponding to the identifier. The one or more device location properties may include a relative location of the wireless device on the subject and/or an associated subject status.

Dependencies are inferred from the claim text.