CPC H04W 64/006 (2013.01) [G01S 3/46 (2013.01); G01S 13/003 (2013.01); G01S 13/48 (2013.01); H04W 24/10 (2013.01)] | 26 Claims |
1. A method for bi-static radio-based object location detection, the method comprising:
obtaining, at a first wireless device, a location of a second wireless device;
obtaining, at the first wireless device, a time-of-flight (ToF) and an angle of arrival (AoA) of a wireless wide-area network (WWAN) reference signal transmitted by a transmitting device, wherein the TOF and the AoA are obtained from measurements of the WWAN reference signal at a receiving device after the WWAN reference signal is reflected by an object; and
determining, with the first wireless device, a location of the object based on the location of the second wireless device, the ToF, and the AoA, wherein the AoA of the WWAN reference signal comprises a differential AoA (DAoA) indicative of an angle between a reflected path of the WWAN reference signal and a direct path between the first wireless device and the second wireless device;
wherein:
the first wireless device comprises the transmitting device and the second wireless device comprises the receiving device, or
the first wireless device comprises the receiving device and the second wireless device comprises the transmitting device.
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