H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 36/14 (2009.01) H04W 24/10 (2009.01) H04W 36/34 (2009.01)
Patent
CA 2721026
To handle a communication session at a wireless mobile communications device, after receiving an indication of current signal strength of an access point for a wireless local area network ("WLAN") a signal strength threshold associated with the access point is retrieved. If the communication session is currently carried by a cellular network and the current signal strength exceeds the signal strength threshold, the communication session is switched from the cellular network to the WLAN. A metric is then adjusted based on timing of the switch relative to any switch of the communication session from the WLAN to the cellular network over a preceding time window associated with the access point. Based on the metric, the signal strength threshold associated with the access point is selectively adjusted. If, on the other hand, the communication session is currently carried by the WLAN and the current signal strength is below the signal strength threshold, an attempt is made to switch the communication session from the WLAN to the cellular network and a metric associated with the access point is adjusted based on whether or not the switch failed. Based on this second metric, the signal strength threshold associated with said access point is adjusted.
Buzdugan Marian Constantin
George Richard John
Lim Miranda Bing Ying
Research In Motion Limited
Smart & Biggar
LandOfFree
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