Patent ID: 9615345
Date: 2017-04-04
CPC Classifications: H04W

Claim:
1. A mobile node arranged to provide a communications service to a user using an internet protocol, after the mobile node has roamed from a first home access network to a second visited access network and attached to a wireless access gateway, the second visited access network including a Local Mobile Agent arranged to manage mobility of the mobile node in the second visited access network, the mobile node comprising: a non-transitory computer-readable medium comprising instructions stored thereon; a computer configured by the instructions to perform acts of: communicating a Binding Update message to a visited serving gateway node of the second visited access network via the wireless access gateway and the Local Mobile Agent using the internet protocol, the Binding Update message including a request for a home internet protocol address for the mobile node as if the mobile node were attached to the first home access network, and receiving, in response to said Binding Update message, a home internet protocol address from said wireless access gateway, said Binding Update request triggering an establishment of a second tunnel between the Local Mobile Agent and the wireless access gateway of the second visited access network and a first tunnel between a home packet data gateway of the first home access network and the visited serving gateway node of the second visited access network, wherein internet traffic to and from the mobile node is routed through said first and second tunnels.