H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 52/26 (2009.01) H04W 64/00 (2009.01) H04W 84/12 (2009.01)
Patent
CA 2726753
A system and method of reducing the WLAN power consumption and limiting battery drain of a mobile communications device is provided. The mechanism continuously monitors for changes in the WLAN and cellular signal strength and modifies the WLAN profile scanning activity accordingly. By monitoring for changes, transitions can be detected which indicate the location of the mobile device (i.e., indoor or outdoor). An increase in cellular signal strength and a decrease in WLAN signal strength indicates the user is transitioning outdoors where WLAN coverage may be limited. To reduce battery power consumption, background scanning is suspended or its frequency significantly lowered. Moving indoors is indicated by a decrease in cellular signal strength and an increase in WLAN signal strength. Background/Connectivity scanning frequency is increased to provide shorter time-to-connect to WLAN Networks for the user within the WLAN coverage area.
Bakthavathsalu Krishna K.
Barbu Ion
Kholaif Ahmad M.
Mendahawi Nayef F.
Integral Ip
Research In Motion Limited
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