Method for allocating uplink control channel for downlink data acknowledgement in wireless communication system and device therefor

The present invention relates to a method for transmitting an uplink control channel in a wireless communication system (Physical Uplink Control CHannel, PUCCH) and apparatus therefor. Specifically, the terminal is at least one of an enhanced control channel element (Enhanced Control Channel Element, ECCE) enhanced downlink control channel phase and at least one enhanced control channel elements for receiving (Enhanced Physical Downlink Control CHannel, EPDCCH) composed of from the base station depending on the linkage (linkage) information (ECCE), transmitting the uplink control channel (PUCCH) corresponding to the enhanced downlink control channel, a downlink data channel (EPDCCH) is scheduled (Physical data Shared cHannel, PDSCH) to the base station comprising the step of, linked (linkage) information, an uplink control corresponding to an index of the aggregation level (aggregation level), at least one of an enhanced control channel element (ECCE) according to an improved downlink control channel (EPDCCH) characterized in that it indicates the index of the channel resources.