US Patent 11520028 Occupancy detection using multiple antenna motion sensing

A motion sensing method includes monitoring for a first motion in a first region using a first antenna using a first motion detection parameter, when no first motion is sensed by the monitoring using the first antenna, monitoring for a second motion in a second region using a second antenna using a second motion detection parameter, and when no second motion is sensed by monitoring using the second antenna, designating a space, which encompasses the second region, as unoccupied, wherein the first region and the second region overlap one another, and the first motion detection parameter is different from the second motion detection parameter.