2458917-A1 is referenced by 1 patents and cites 3 patents.

Methods and apparatus for use by a mobile communication device in switching operation for communications from a wireless wide area network (WWAN) to a wireless local area network (WLAN) are disclosed. While providing operation for communications in the WWAN, the mobile device continually maintains visited-cell site history information, in its memory, indicative of one or more visited cell sites of the WWAN that served the mobile device over a moving time period, and continually monitors the site history information to identify whether it has been contained within a local geographic region over the moving time period. If it has, it is permitted to operate for communications with the WLAN. In response to such permission, the mobile device may enable its WLAN radio transceiver and select the WLAN for communications. The WLAN radio transceiver is, thus, enabled only when needed, which reduces power consumption and saves battery life in mobile device.

Title
Methods and apparatus for use in switching communication operations between a wireless wide area network and a wireless local area network
Verfahren und Vorrichtung zur Verwendung beim Umschalten von Kommunikationsoperationen zwischen einem drahtlosen Weitbereichsnetzwerk und einem drahtlosen Nahbereichsnetzwerk
Procédés et appareil pour une utilisation pour la commutation dopérations de communication entre un réseau étendu sans fil et un réseau local sans fil
Application Number
EP20110180980 20070115
Publication Number
2458917 (A1)
Application Date
January 15, 2007
Publication Date
May 30, 2012
Inventor
PECEN MARK E
CA
Assignee
RESEARCH IN MOTION
CA
IPC
H04W 36/36
H04W 36/32
H04W 36/14
H04W 36/24
H04W 36/04
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