Patent ID: 7675881
Filing Date: 2010-03-09
Classification: H04W

Abstract:
1. An interface for connecting networks, comprising: an interworking function provided between a wireless local area network (WLAN) and a public mobile land network (PLMN) to provide communication interactions between the public mobile land network and the wireless local area network; the interworking function further comprising a dual-protocol stack which interfaces the wireless local area network protocols and public mobile land network protocols to provide seamless communications between the wireless local area network and the public mobile land network such that an increase in available service bandwidth provided for users of the public mobile land network is maintained; and means for detecting user movement between a coverage area of said wireless local area network and a coverage area of said public mobile land network by comparing a first routing area identifier (RAI) associated with said public mobile land network and a second routing area identifier (RAI) associated with said wireless local area network.