Method and apparatus for transmitting control information in a wireless communication system

A user equipment (UE) configured to transmit a physical uplink control channel (PUCCH) signal in a wireless communication system, the communication apparatus comprising:

• a radio frequency (RF) unit;
• and
• a processor configured to generate control information including hybrid automatic repeat request acknowledgement (HARQ-ACK) bit(s) and a scheduling request (SR) bit, to set a transmit power for the PUCCH signal based on a parameter nSR, and to transmit the PUCCH signal including the control information based on the transmit power at a subframe configured for SR transmission,
• wherein nSR is a parameter having a value of 0 or 1 based on whether or not the UE has any associated transport block for an uplink shared channel (UL-SCH) with regard to the subframe.

A method for receiving control information by a base station (BS) in a wireless communication system, the method comprising:

• receiving a physical uplink control channel (PUCCH) signal including automatic repeat request acknowledgement (HARQ-ACK) bit(s) and a scheduling request (SR) bit from a user equipment (UE) at a subframe configured for SR transmission, wherein a transmit power of the PUCCH signal is based on a value nSR;
• and
• decoding the PUCCH signal to provide the HARQ-ACK bit(s) and the SR bit,
• wherein nSR is a parameter having a value of 0 or 1 based on whether or not there is any associated transport block for an uplink shared channel (UL-SCH) for the UE with regard to the subframe.

A base station (BS) for use in a wireless communication system, the BS comprising:

• a radio frequency (RF) unit that receives a physical uplink control channel (PUCCH) signal including automatic repeat request acknowledgement (HARQ-ACK) bit(s) and a scheduling request (SR) bit from a user equipment (UE) at a subframe configured for SR transmission, wherein a transmit power of the PUCCH signal is based a value nsR;
• and
• a processor that decodes the PUCCH signal to provide the HARQ-ACK bit(s) and the SR bit,
• wherein nSR is a parameter having a value of 0 or 1 based on whether or not there is any associated transport block for an uplink shared channel (UL-SCH) for the UE with regard to the subframe.