A wireless device capable of wireless local area network (WLAN) communications and cellular network communications stores profiles of wireless local area networks. The device identifies in which cell of a cellular network the device is currently located, and then scans more frequently for wireless local...http://www.google.fr/patents/US7844269?utm_source=gb-gplus-shareBrevet US7844269 - Scanning cell-dependent groups of profiles of wireless local area networks
Scanning cell-dependent groups of profiles of wireless local area networks