Patent ID: 8804592

Claim:
A method for managing a multicast and broadcast service in a base station, comprising: transmitting a multicast and broadcast service control channel to a terminal; transmitting an indicator channel for indicating a change of the multicast and broadcast service control channel by using a unicast control channel when the multicast and broadcast service control channel is changed, to the terminal, wherein the unicast control channel includes an identifier to indicate a change in size of the multicast and broadcast service control channel; and transmitting the changed multicast and broadcast service control channel to the terminal, wherein the base station counts a number of terminals in a connected state that respond to an inquiry of intention to receive the multicast and broadcast service, wherein when the counted number is larger than a predetermined reference, the base station provides the multicast and broadcast service to the terminals, and when the counted number is equal to or less than the predetermined reference, the base station transmits the indicator channel to a terminal in an idle state and counts a number of terminals in the idle state that respond to the inquiry.