H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 88/06 (2009.01) H04W 84/04 (2009.01) H04W 84/12 (2009.01)
Patent
CA 2717678
A mobile device operates for communications via a WLAN with use of a WLAN transceiver portion. During such operation, the mobile device performs one or more scanning operations with use of a WWAN transceiver portion for identifying a set of cell site identifications corresponding to a plurality of base stations of one or more WWANs available in a coverage region of the WLAN. The set of cell site identifications is stored in association with a WLAN profile of the WLAN. Subsequently, while the mobile device operates for communications in a WWAN, the WLAN transceiver portion may be maintained in a low power state. During the WWAN operation, the mobile device performs one or more scanning operations with use of the WWAN transceiver portion for identifying a current set of cell site identifications corresponding to the currently--serving base station of the WWAN and one or more neighboring base stations. The mobile device compares cell site identifications of the current set with those in the stored set, and identifies if the number or percentage of matching cell site identifications of the current and stored sets meets or exceeds a predetermined threshold. If the predetermined threshold is met or exceeded, the mobile device enables operation of the WLAN transceiver portion for communications via the WLAN; otherwise, the mobile device refrains from enabling operation of the WLAN transceiver portion for communications via the WLAN. This technique may be performed in association with each WLAN profile stored in the mobile device.
Cormier Jean-Philippe Paul
Ekici Ozgur
Prodanos Dimitrios
Research In Motion Limited
Ridout & Maybee Llp
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