Patent ID: 8194608
Filing Date: 2012-06-05
Classification: H04L,H04W

Abstract:
1. A telecommunications system operable to provide a mobile communications session to a mobile node using an internet protocol, comprising a home packet data network operable to communicate internet packets to and from the mobile node to provide the communications session, when the mobile node is affiliated with the home packet data network, the home packet data network including a home agent of the mobile node, and a visited packet data network operable to communicate internet packets to and from the mobile node to provide the communications session, when the mobile node is affiliated with the visited packet data network, wherein one of the home packet data network or the visited packet data network includes a packet data gateway for controlling the communication of the internet packets to and from the home packet data network from and to the visited packet data network, and upon receipt of a binding update internet packet providing a care of address of the mobile node following a change of affiliation from the home packet data network to the visited packet data network, the packet data gateway and the home agent are operable to establish a route for the internet packets between the home agent and the mobile node via the packet data gateway, to the effect that the packet data gateway can control the communication of the internet packets from the home packet data network to the mobile node and the communication of the internet packets received from the mobile node via the visited packet data network when the mobile node is affiliated with the visited packet data network.