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

Claim 0:
1. A method, comprising:
receiving, by a device, radio frequency transmissions from one or more access points provided in a zone;
calculating, by the device and based on determining that the device has sufficient resources to process channel state information associated with the one or more access points and based on the radio frequency transmissions, the channel state information;
identifying, by the device, 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;
performing, by the device, a short-time Fourier transform of the channel state information phases to generate a frequency versus time graph; selectively:
performing, by the device, 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
processing, by the device, 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
performing, by the device, one or more actions based on the quantity of people and the start and stop times.