Patent ID: RE44198

Claim:
A method of controlling a point-to-multipoint service transmission in a mobile communication system, the method comprising: receiving point-to-multipoint service data from a base station; receiving control information from the base station, the control information associated with reception quality information of the received point-to-multipoint service data; measuring a reception quality of the received point-to-multipoint service data; and transmitting the reception quality information for the point-to-multipoint service data to the base station according to the control information, wherein the control information includes an indicator of at least one mobile station that transmits the reception quality information, wherein the control information further includes information for a reception quality information transmission mode, wherein the reception quality information transmission mode corresponds to at least a periodic mode or a threshold mode, wherein the control information further includes a transmission period of the reception quality information if the reception quality information transmission mode corresponds to the periodic mode; wherein the control information further includes threshold information for the reception quality information transmission if the reception quality information transmission mode corresponds to the threshold mode; and wherein the control information further includes the transmission period of the reception quality information and the threshold information for the reception quality information transmission if the reception quality information transmission mode corresponds to the periodic mode and the threshold mode.