Method and device for transmitting/receiving uplink control information in wireless communication system

The present invention relates to a wireless communication system, and more specifically to a method and a device for transmitting/receiving uplink control information. The method for a terminal to transmit confirmation response information in a wireless communication system according to an embodiment of the present invention comprises: a step for determining a PUCCH (Physical Uplink Control Channel) format and resource, in which the acknowledgment response information is transmitted in response to a downlink transmission in a set of downlink subframes including downlink subframes. downlink M(M>=1); and a step for transmitting the confirmation response information using the PUCCH format and resource in an uplink subframe. Here, an excess serving cell is established in a terminal, and the excess serving cell may include a PCell and at least one SCell. The confirmation response information may be transmitted using a PUCCH 1a/1b format when there is a PDSCH (Physical Downlink Shared Channel), from which a corresponding PDCCH (Physical Downlink Control Channel) is not detected, only in PCell in the set of downlink subframes. , and there is no SPS release PDCCH (semi-persistent scheduling) in the set of downlink subframes. </p> <p>(Automatic translation with Google Translate, without legal value)