| 摘要 |
PURPOSE: A system which transmits a control signal through uplink is provided to receive the feedback of a reception state of a multimedia service from a terminal and to control the multimedia service according to feedback. CONSTITUTION: A network device receives a reception state about an MBMS(Multimedia Broadcast Multicast Service) from a terminal that receives the MBMS(S840). The network device deactivates the MBMS and transmits the MBMS to the terminal in a unicast type based on the number of terminals(S850, S860). |
