| 摘要 |
<p>Embodiments of the present invention provide an IP multicast system and method based on a mobile network. The system includes: an IGMP proxy unit set in an access network and providing information of a multicast group to which a terminal belongs. The IGMP proxy unit receives data sent from a multicast data source, and sends the data to a base station which then sends the data to the terminal. Well combined with the mobile network, the solution in accordance with the embodiments of the present invention simplifies the IP multicast in the mobile network, makes the transfer of multicast data transparent with respect to the core network of the mobile network, thereby making it convenient for a user to visit all multicast data source in the existing Internet. This technique can be used in such mobile communication networks as WCDMA, CDMA2000, GSM and TD-SCDMA.</p> |
