A method for updating a location by a system comprising: an user equipment, UE, supporting a plurality of radio access technologies, a base station of a Long Term Evolution, LTE, network, an access point being a base station of a Wi-Fi network, a virtual base station connected to the base station of the Wi-Fi network and a Mobility Management Entity, MME, the method characterized by comprising: receiving (S405), at the UE, an internet protocol, IP, address of the virtual base station of a long term evolution, LTE, from the base station of the LTE network when a handover is determined from the LTE network to the Wi-Fi network, the virtual base station connected to the access point of the Wi-Fi network; releasing (S415), from the UE, a radio resource connection with the base station of the LTE network; accessing (S420), from the UE after the releasing, 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 (S425), from the UE, a layer 3, L3, tunnel with the virtual base station via the base station of the Wi-Fi network using the received IP address; transmitting (S435), from the UE, an updated location of the UE to the virtual base station through the established L3 tunnel; registering (S440, S445), via the virtual base station, the updated location of the UE in the MME the updated location of the UE is used by the MME to determine whether to change a serving MME of the UE, and receiving (S450), at the UE, a paging message from the virtual base station to which the L3 tunnel is established, if the MME requests to the virtual base station that the virtual base station performs paging from the determined serving MME. receiving (S405), at the UE, an internet protocol, IP, address of the virtual base station of a long term evolution, LTE, from the base station of the LTE network when a handover is determined from the LTE network to the Wi-Fi network, the virtual base station connected to the access point of the Wi-Fi network; releasing (S415), from the UE, a radio resource connection with the base station of the LTE network; accessing (S420), from the UE after the releasing, 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 (S425), from the UE, a layer 3, L3, tunnel with the virtual base station via the base station of the Wi-Fi network using the received IP address; transmitting (S435), from the UE, an updated location of the UE to the virtual base station through the established L3 tunnel; registering (S440, S445), via the virtual base station, the updated location of the UE in the MME the updated location of the UE is used by the MME to determine whether to change a serving MME of the UE, and receiving (S450), at the UE, a paging message from the virtual base station to which the L3 tunnel is established, if the MME requests to the virtual base station that the virtual base station performs paging from the determined serving MME. <EOS>