Apparatus and Method for Detecting Location of Wireless Device to Prevent Relay Attack
0 Assignments
0 Petitions
Accused Products
Abstract
A passive entry passive start (PEPS) method for preventing relay attack includes detecting a distance of a wireless device to a vehicle based on a time of flight of an ultra-wideband (UWB) signal between the wireless device and a base station at the vehicle. The method further includes enabling by the base station a function of the vehicle only when the distance of the wireless device to the vehicle is within a zone of the vehicle.
-
Citations
40 Claims
-
1-20. -20. (canceled)
-
21. A passive entry passive start (PEPS) method for preventing relay attack, the method comprising:
-
detecting a distance of a wireless device to a vehicle based on a time of flight of an ultra-wideband (UWB) signal between the wireless device and a base station at the vehicle; and enabling by the base station a function of the vehicle only when the distance of the wireless device to the vehicle is within a predetermined zone of the vehicle. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A passive entry passive start (PEPS) system for preventing relay attack, the system comprising:
-
a wireless device; and a base station at a target device, the base station configured to detect a distance of the wireless device to the target device based on a time of flight of an ultra-wideband (UWB) signal between the wireless device and the base station and to enable a function of the target device only when the distance of the wireless device to the target device is within a predetermined vicinity of the target device. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
-
-
40. A vehicle comprising:
a base station configured to detect a distance of a wireless device to the vehicle based on a time of flight of an ultra-wideband (UWB) signal between the wireless device and the base station and to enable a function of the vehicle only when the distance of the wireless device to the vehicle is within a predetermined zone of the vehicle.
Specification