<p>A wireless communications device has network interfaces for accessing cellular data networks and Wi-Fi wireless local area networks. Wi-Fi offload allows data traffic to be moved away from the cellular network to the Wi-Fi network. To avoid any existing data sessions being broken during offload, Proxy Mobile IP (PMIP) must be supported by a Wi-Fi access point and associated Mobile Access Gateway. Before Wi-Fi association and authentication, the wireless communication device scans the surrounding area for access points and determines which of the access points supports PMIP before selecting one for association.</p>
申请公布号
EP2832157(A1)
申请公布日期
2015.02.04
申请号
EP20130715389
申请日期
2013.03.27
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
SCAHILL, FRANCIS, JAMES;EVENDEN, RICHARD, JOSEPH;ORLANDI, BARBARA