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

An apparatus for transmitting control information comprising a plurality of positive/negative acknowledgements (ACK/NACKs) and a scheduling request (SR) in a wireless communication system, the apparatus comprising:

• a Radio Frequency (RF) unit;
• and
• a processor for controlling the RF unit to receive a plurality of Physical Downlink Shared Channels (PDSCHs) and to transmit a plurality of ACK/NACKs and an SR corresponding to the plurality of PDSCHs using Physical Uplink Control Channel (PUCCH) Format 3,
• wherein the plurality of ACK/NACKs are divided into first and second segments, and the SR is added to an end of the second segment and jointly encoded with plural ACK/NACKs of the second segment to which the SR is added,
• wherein the SR is added to the end of the second segment when N is an odd number,
• wherein repetition coding is performed on the SR to generate 2×m SRs, where m is an arbitrary integer,
• wherein the generated SRs are equally divided into and added to the first and second segments when N is an even number, and
• wherein N is a number of the plurality of ACK/NACKs.