Method for configuring resource block for search region of downlink control channel in wireless communication system, and apparatus therefor

A User Equipment (UE) for transmitting uplink data using Hybrid Automatic Repeat and reQuest (HARD) in a wireless communication system, the UE comprising:

• a Radio Frequency (RF) unit;
• and
• a processor,
• wherein the processor is configured to set a first Uplink-Downlink (UL-DL) configuration for a first frequency band and a second UL-DL configuration for a second frequency band, receive uplink control information in a downlink subframe of the first frequency band, and transmit uplink data corresponding to the uplink control information in a specific uplink subframe of the second frequency band linked to the downlink subframe of the first frequency band according to the second UL-DL configuration, when an uplink subframe, which has a subframe number corresponding to the downlink subframe according to the first UL-DL configuration, does not exist on the first frequency band within a predetermined time after the downlink subframe.