Disclosed is a method for communication of a terminal in a communication system, including receiving downlink control information (DCI) for scheduling a second cell, transmitting uplink data corresponding to the DCI on a first subframe of the second cell, and receiving feedback information for the uplink data on a second subframe identified based on a time division duplex (TDD) uplink/downlink (UL/DL) configuration of a first cell, if the first cell and the second cell are configured for the terminal, and the TDD UL/DL configuration of the first cell and a TDD UL/DL configuration of the second cell are different, and the DCI for scheduling the second cell is received on the first cell.