Patent ID: 8532076
Filing Date: 2013-09-10
Classification: H04W

Abstract:
1. A telecommunications system for communicating data packets to and from a mobile terminal in accordance with a mobile internet protocol, the system comprising: a packet radio network including a first radio access interface and a gateway support node, the packet radio network being operable to communicate data packets to and from the mobile terminal through the gateway support node via the first radio access interface, the gateway support node being operable to provide a home address via which a correspondent node may transmit data packets via the gateway support node to the mobile terminal when the mobile terminal is attached to the packet radio network, and a wireless access network including a second radio access interface and a home agent, the wireless access network being operable to communicate data packets to and from the mobile terminal through the home agent via the second radio access interface, the wireless access network being operable to provide a care of address for the mobile terminal via which the correspondent node may transmit data packets via the home agent to the mobile terminal when the mobile terminal is attached to the wireless access network, wherein the mobile terminal is arranged to connect to one of the packet radio network or the a wireless access network and, when connected, to detect which of the packet radio network and the wireless access network the mobile terminal has connected, and upon detection that the mobile terminal is attached to the packet radio network, the mobile terminal and the home agent are arranged so that data packets are transmitted to and from the mobile terminal via the gateway support node in preference to and mobile internet protocol operations through the home agent are deactivated or suppressed.