| CPC G06F 1/3234 (2013.01) [G06F 1/3206 (2013.01); H04B 17/318 (2015.01); H04W 4/80 (2018.02)] | 25 Claims | 

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               1. One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed cause one or more processors to: 
            scan, using a first wake source, for a signal from a mobile device with a specific media access control (MAC) address; 
                measure a received signal strength indicator (RSSI) of the signal; 
                compare the RSSI with a threshold that corresponds to a proximity range; 
                determine that the mobile device is outside the proximity range based on the comparison; and 
                transition one or more wake sources to a low power state based on the determination, wherein the first wake source remains in a powered on state while the one or more wake sources are in the low power state. 
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