A method for transmitting feedback information by a terminal supporting a time division duplex, TDD, in a 3GPP Long Term Evolution, LTE, wireless communication system, the method comprising: receiving downlink data on a physical downlink shared channel, PDSCH, of a secondary cell, SCell; determining at least one subframe which is an uplink subframe for both of a primary cell, PCell, and the SCell, based on a first TDD frame structure configuration of the PCell and a second TDD frame structure configuration of the SCell; determining , based on a subframe index of the determined at least one subframe, a third TDD frame structure configuration among a plurality of configured TDD frame structure configurations, wherein a subframe index of an uplink subframe for the third TDD frame structure configuration is the same as the subframe index of the determined at least one subframe, and remaining subframes other than the uplink subframe for the third TDD frame structure configuration are downlink subframes, or special subframes in case that the subframe index of the remaining subframe is the same as the subframe index of a special subframe in both the first TDD frame structure configuration and the second TDD frame structure configuration; and transmitting a hybrid automatic repeat request, HARQ, acknowledgement, ACK, response for the downlink data received on the SCell, the HARQ ACK response being transmitted in the uplink subframe for the third TDD frame structure configuration on the PCell, wherein the uplink subframe for the third TDD frame structure configuration is determined based on a timing relationship between a PDSCH and a HARQ ACK response corresponding to the third TDD frame structure configuration, and wherein the first TDD frame structure configuration, the second TDD frame structure configuration and the third TDD frame structure configuration are different. receiving downlink data on a physical downlink shared channel, PDSCH, of a secondary cell, SCell; determining at least one subframe which is an uplink subframe for both of a primary cell, PCell, and the SCell, based on a first TDD frame structure configuration of the PCell and a second TDD frame structure configuration of the SCell; determining , based on a subframe index of the determined at least one subframe, a third TDD frame structure configuration among a plurality of configured TDD frame structure configurations, wherein a subframe index of an uplink subframe for the third TDD frame structure configuration is the same as the subframe index of the determined at least one subframe, and remaining subframes other than the uplink subframe for the third TDD frame structure configuration are downlink subframes, or special subframes in case that the subframe index of the remaining subframe is the same as the subframe index of a special subframe in both the first TDD frame structure configuration and the second TDD frame structure configuration; and transmitting a hybrid automatic repeat request, HARQ, acknowledgement, ACK, response for the downlink data received on the SCell, the HARQ ACK response being transmitted in the uplink subframe for the third TDD frame structure configuration on the PCell, wherein the uplink subframe for the third TDD frame structure configuration is determined based on a timing relationship between a PDSCH and a HARQ ACK response corresponding to the third TDD frame structure configuration, and wherein the first TDD frame structure configuration, the second TDD frame structure configuration and the third TDD frame structure configuration are different. <EOS>