<p>IP data is multicast from one or more servers (4) in sessions through a network (N) comprising a plurality of routers (R) in a multicast tree to transmission sites (S) of a DVB-T network, where the data is encapsulated by IPEs 28 and transmitted unidirectionally to mobile user equipment (UE). A controller (38) builds up a schedule of session data concerning sessions transmitted by the servers (4) and instructs the IPEs to send join messages to receive data for selected sessions. The join messages may include the address of the source and may be transmitted in good time before the start of the session</p>
申请公布号
WO2005032044(A1)
申请公布日期
2005.04.07
申请号
WO2004IB51776
申请日期
2004.09.16
申请人
NOKIA CORPORATION;MULLER, DOMINIQUE;SOINIO, MARKKU