| 摘要 |
The invention concerns a method of providing an Internet protocol television service to a subscriber, and a network element (53, 63, 73) to execute this method. At an acquisition tier (1), IPTV packets are generated from video stream data of one or more video channels and transmitted to a FCC server cluster (61, 71) at a client-facing tier (2). IPTV packets associated with one of the one or more video channels selected by the subscriber are delivered from the deliver server cluster (61, 71) to a receiver (77, 671, 672, 673) of the subscriber at a client tier (3) wherein the IPTV packets associated with the one of the one or more video channels selected by the subscriber are reassembled at said receiver (77, 671, 672, 673) into a coherent video stream for display to the subscriber. Said generated IPTV packets are routed from a network (5) of a TV broadcaster to one or more networks (6, 7) of one or more TV operators or from a network (6, 7) of a TV operator to one or more networks (6, 7) of one or more TV operators by means of IPTV service routers (53, 63, 73) installed at an intertwine tier (4) arranged between the acquisition tier (1) and the client-facing tier (2), whereby each of the networks (5, 6, 7) of the TV broadcaster and/or TV operators has an IPTV service router (53, 63, 73) associated with it whereby each IPTV service router (53, 63, 73) is responsible for signalling and transport of said generated IPTV packets via said intertwine tier (4). |
