Location update method for terminal supporting multiple radio access technologies

摘要

A location update method for a terminal which supports multiple radio access technologies, according to the present invention, comprises the steps of: a terminal releasing the connection to wireless resources of the base station of a first network, which is able to access different networks simultaneously by using a first and a second radio access technology, in order to maintain an access only to the base station of a second network which uses the second radio access technology; establishing a layer 3 tunnel (L3 tunnel) to a virtual base station of the first network while maintaining an access only to the base station of the second network; and transmitting the location update of the terminal to the virtual base station of the first network to which the L3 tunnel has been established.

主权项

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.