Systems and methods for detecting proximity and location of a smartphone or other device to a vehicle

Abstract

A remote keyless system for a vehicle includes a plurality of slave transmitter modules arranged in a plurality of locations in the vehicle. A master transceiver module is configured to pair with a wireless device; wirelessly transmit data to and receive data from the wireless device; transmit first wired messages to the plurality of slave transmitter modules to send first wireless messages to the wireless device; receive a plurality of second wireless messages directly from the wireless device, wherein the second wireless messages comprise data including received signal strength indicators (RSSIs) corresponding to each of the plurality of slave transmitter modules, respectively; and determine a location of the wireless device relative to the vehicle based on the RSSIs in the plurality of second wireless messages.

Dependencies are inferred from the claim text.