| CPC G01S 5/02525 (2020.05) [H04B 17/364 (2015.01); H04W 24/10 (2013.01)] | 30 Claims |
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1. An apparatus comprising:
a receiver;
a memory; and
a processor, communicatively coupled to the receiver and the memory, configured to:
obtain a plurality of RFFPs (radio frequency fingerprints) each based on a plurality of signal measurements of respective signals transferred between respective ones of a plurality of wireless signal transfer devices including a target device;
obtain a plurality of locations corresponding to the plurality of wireless signal transfer devices; and
implement machine-learning to provide at least one first indication of at least one first signal time delay based on the plurality of RFFPs and the plurality of locations, the at least one first signal time delay being an amount of time for components of the apparatus to convert between a first wireless signal at the target device and a first baseband signal at the target device.
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