モバイルＩＰ−ＣＡＮゲートウェイの機能を提供するための構成および前記ＩＰ−ＣＡＮからトラフィックをオフロードするためのそのような構成の使用

摘要

In an embodiment, there is provided an arrangement for providing functions of a mobile IP-CAN gateway, said arrangement comprising:
- a first gateway node, a second gateway node, and an interface between said first and second gateway nodes,
- said first and second gateway nodes linked by said interface appearing to the mobile IP-CAN and to an external IP network as a mobile IP-CAN gateway interfacing said mobile IP-CAN with said IP network,
- said first gateway node, located in said mobile IP-CAN, providing those traffic handling functions of said mobile IP-CAN gateway, referred to as first traffic handling functions, which are related with the termination of the interface of said mobile IP-CAN gateway towards said mobile IP-CAN,
- said second gateway node, located in a fixed IP-CAN, providing those traffic handling functions of said mobile IP-CAN gateway, referred to as second traffic handling functions, which are not related with the termination of the interface of said mobile IP-CAN gateway towards said mobile IP-CAN.