Patent ID: 8116270

Claim:
A method for transmitting a Channel Quality Indicator (CQI) in a communication system, the method comprising: determining, by a terminal, whether there is any uplink data to transmit to a base station, when a CQI transmission time arrives according to a predetermined CQI transmission period; if there is uplink data to transmit, determining whether the CQI has ever been transmitted during a predetermined number of previous sub-frames including a sub-frame corresponding to the CQI transmission time, and when the CQI has never been transmitted during the predetermined number of previous sub-frames, puncturing a part of the uplink data to insert the CQI therein, multiplexing the inserted CQI with the uplink data, and transmitting the multiplexed CQI and uplink data; and if there is no uplink data to transmit, waiting until a next CQI transmission time without transmitting the CQI.