MULTICAST IN A POINT-TO-POINT ORIENTED PACKET-SWITCHED TELECOMMUNICATION NETWORK

摘要

A method, network node, router, serving node and system for performing multicast in a point to point oriented telecommunication network. The basic idea is to introduce multicast transmission for parts of a network that is basically point-to-point oriented. This is done by creating transport multicast group tunnels between a router and a serving node in order to transport the multicast data. In a mobile environment like in UMTS the idea could be implemented by using IP multicast for efficient transmission in the IP network between the SEGSN and GGSN for example on the Gn interface.