1. A method for transmitting uplink control information (UCI), performed by a user equipment (UE), in a wireless communication system, the method comprising:determining a transmission power of a physical uplink control channel (PUCCH); and
transmitting the UCI to a base station (BS) through the PUCCH using the transmission power of the PUCCH in a subframe,
wherein when the subframe is configured for transmitting a scheduling request (SR) and when a transmission of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) coincides with the subframe, the transmission power of the PUCCH is determined based on a total payload size of the HARQ-ACK and the SR, and
wherein a payload size of the SR is one bit.