Patent ID: 7394779
Filing Date: 2008-07-01
Classification: H04B,H04L

Abstract:
1. A satellite IP (Internet Protocol) multicasting system comprising: a backbone network; a content provider for providing multimedia contents; a satellite network for transmitting contents provided from the content provider via a satellite and for providing contents with a multicast packet; and a local network, interworked with the backbone network, for configuring the multicast packet as multicasting protocol from a router, performing unilateral reverse path forwarding by static multicasting routing setup on a router connected to the satellite network via Ethernet and on a subscriber router, and transmitting the multicast packet into a terminal client, wherein the content provider transmits a multimedia packet into the satellite network via unicast protocol, wherein the satellite network comprises: a satellite transmission system comprising a multimedia server for designating a multicast group address to the multimedia packet, an IP gateway for transforming the multimedia packet into transport stream data, a modulator for modulating the transport stream data and a satellite transmitter for wirelessly transmitting data; a satellite; and a satellite reception system comprising a satellite receiver for receiving a satellite modulating signal from the satellite and a satellite data receiver for demodulating a multicast packet made in the multimedia server from the satellite modulating signal and transmitting the packet into a predetermined destination.