Abstract: This disclosure describes systems, methods, and devices for a mechanism for detecting attacks on frequency offset in a wireless network. A device may receive a packet from a reflector device, wherein the packet comprises an access code and a coded sequence of bits. The device may also receive a tone signal from the reflector device. The device may then calculate a first frequency offset estimation associated with the packet and calculate a second frequency offset estimation associated with the tone signal. The device may then calculate a difference between the first frequency offset estimation and the second frequency offset estimation. The device may further identify an allowable threshold range of the difference.

Abstract: An apparatus for determining a distance to an object is provided. The apparatus includes a first transceiver configured to transmit a first radio frequency signal. Further, the apparatus includes a second transceiver configured to transmit a second radio frequency signal in response to receiving the first radio frequency signal. The apparatus additionally includes a processing circuit configured to determine the distance to the object based on a transmission time of the first radio frequency signal and a reception time, at the first transceiver, of a reflected component of the second radio frequency signal that is reflected by the object.

Abstract: An apparatus for determining a distance to an object is provided. The apparatus includes a first transceiver configured to transmit a first radio frequency signal. Further, the apparatus includes a second transceiver configured to transmit a second radio frequency signal in response to receiving the first radio frequency signal. The apparatus additionally includes a processing circuit configured to determine the distance to the object based on a transmission time of the first radio frequency signal and a reception time, at the first transceiver, of a reflected component of the second radio frequency signal that is reflected by the object.