Patent ID: 8619701
Filing Date: 2013-12-31
Classification: H04L,H04W

Abstract:
1. A method, comprising: configuring a virtual interface at a current router used by a user equipment, the virtual interface including a logical interface not associated with a physical interface, the virtual interface established to remain after a handoff from the current router to another router; configuring a local link to the user equipment, the local link including a point to point protocol link between the current router and the user equipment, the local link being terminated after the handover; assigning a global address to the virtual interface, the global address identifying the virtual interface at the current router rather than the local link; and receiving, after the local link between the user equipment and the current router has been terminated and after a care-of-address for the user equipment has been configured, a message sent by the user equipment to the current router using the global address to facilitate the handoff to the another router.