Patent ID: 11862000
Assignee: VERIZON PATENT AND LICENSING INC.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a device, cause the device to:
receive radio frequency transmissions from one or more access points provided in a zone;
calculate channel state information for the one or more access points based on the radio frequency transmissions and based on determining that the device has resources to process the channel state information;
identify channel state information phases that satisfy a phase threshold to eliminate surrounding movement in the zone and to focus on an entry location of the zone;
perform a short-time Fourier transform of the channel state information phases to generate a frequency versus time graph; selectively:
perform a spectrogram analysis of the frequency versus time graph to determine a quantity of people in the zone and start and stop times associated with entries and exits of the people to and from the zone and process the frequency versus time graph with a model, to determine the quantity of people in the zone and the start and stop times associated with entries and exits of the people to and from the zone; and

perform one or more actions based on the quantity of people and the start and stop times.