Transmission power control apparatus in wireless communication system and method thereof

The present invention R-CQICH to provide an apparatus and method for separately controlling the transmission power of - - (reverse channel acknowledgment) (TPS indicator channel) and the R-ACKCH. The invention receives the second parameter corresponding to a first parameter and a R-ACKCH corresponding to the R-CQICH through an overhead message from a base station, the first and using the second parameter of the R-CQICH and R-ACKCH determining a transmit power otherwise. R-CQICH, R-ACKCH, the overhead message, a transmission power, a separate control