US 11,678,262 B2
Method and system for battery life improvement for low power devices in wireless sensor networks
Mahendra Fuleshwar Prasad, Waterloo (CA); Michael Peter Montemurro, Toronto (CA); Stephen McCann, Southampton (GB); Jesse William Bennett, Apex, NC (US); Scott Leonard Dill, Paris (CA); and James Randolph Winter Lepp, Ottawa (CA)
Assigned to BlackBerry Limited, Waterloo (CA)
Filed by BlackBerry Limited, Waterloo (CA)
Filed on Jul. 1, 2020, as Appl. No. 16/918,030.
Application 16/918,030 is a continuation of application No. 15/680,285, filed on Aug. 18, 2017, granted, now 10,721,683.
Prior Publication US 2020/0336980 A1, Oct. 22, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/02 (2009.01); H04W 4/70 (2018.01); H04W 40/24 (2009.01); H04W 88/16 (2009.01)
CPC H04W 52/0203 (2013.01) [H04W 4/70 (2018.02); H04W 40/244 (2013.01); H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 52/0229 (2013.01); H04W 88/16 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method at a gateway within a sensor system for communicating with at least one sensor or sensor module, the method comprising:
storing, in a memory of the gateway, a timing profile for communications with the at least one sensor or sensor module;
powering down a processor of the gateway;
waking a radio core of the gateway at a threshold time prior to a transmission time for a sensor beacon signal from the at least one sensor or sensor module;
sampling, with the radio core, a channel for the sensor beacon signal at the radio core while the processor of the gateway is powered down;
if the sensor beacon signal is detected:
waking the processor on the gateway;
exchanging, through the radio core, communication with the at least one sensor or sensor module;
providing, through the radio core, a report to a network server; and
powering down the processor and radio core upon completion of the exchanging communication.