Patent ID: 9516462
Filing Date: 2016-12-06
CPC Classification: H04W

Claim Text:
1. A method for updating a location by a user equipment (UE) supporting a plurality of radio access technologies, the method comprising: receiving an internet protocol (IP) address of a virtual base station of a Long term evolution (LTE) network from a base station of the LTE network when a handover is determined from the LTE network to a Wi-Fi network, the virtual base station connected to the base station of the Wi-Fi network; releasing a radio resource connection with a-the base station of the LTE network; accessing the base station of the Wi-Fi network using a second radio access technology, the UE being capable of simultaneously accessing different networks using a first radio access technology and the second radio access technology; establishing a layer 3 (L3) tunnel with the virtual base station via the base station of the Wi-Fi network using the received IP address; receiving a paging message from the virtual base station; establishing a radio resource connection with the virtual base station according to the paging message; and transmitting an updated location of the UE to the virtual base station in order to register the updated location of the UE in a mobile management entity (MME) via the virtual base station.