A method for transmitting feedback information, comprising: receiving (S210), by terminal equipment, a first signaling transmitted by a base station, the first signaling being configured to indicate K first Physical Uplink Control Channel, PUCCH, resources, wherein K is a positive integer; in a first downlink subframe set, respectively receiving (S220), by the terminal equipment, data on licensed carriers and unlicensed carriers which are aggregated, determining (S220) N-bit feedback information for the licensed carriers, and determining (S220) M-bit feedback information for the unlicensed carriers, wherein M is an integer more than or equal to 0, N is an integer more than or equal to 0, and at least one of M and N is not 0; and when the terminal equipment receives the data on the unlicensed carriers, transmitting (S240), by the terminal equipment, the M-bit feedback information and the N-bit feedback information on L first PUCCH resources in the K first PUCCH resources in a first uplink subframe, or, when the terminal equipment receives the data on the licensed carrier(s) and the unlicensed carriers, transmitting (S240), by the terminal equipment, the N-bit feedback information on at least one second PUCCH resource and transmitting the M-bit feedback information on L first PUCCH resources in the K first PUCCH resources in a first uplink subframe, wherein L is a positive integer less than or equal to K, and the at least one second PUCCH resource is determined according to Downlink Control Information, DCI, configured for scheduling data transmission on the licensed carriers, wherein the first downlink subframe set comprises all downlink subframes corresponding to the first uplink subframe for transmitting the feedback information. receiving (S210), by terminal equipment, a first signaling transmitted by a base station, the first signaling being configured to indicate K first Physical Uplink Control Channel, PUCCH, resources, wherein K is a positive integer; in a first downlink subframe set, respectively receiving (S220), by the terminal equipment, data on licensed carriers and unlicensed carriers which are aggregated, determining (S220) N-bit feedback information for the licensed carriers, and determining (S220) M-bit feedback information for the unlicensed carriers, wherein M is an integer more than or equal to 0, N is an integer more than or equal to 0, and at least one of M and N is not 0; and when the terminal equipment receives the data on the unlicensed carriers, transmitting (S240), by the terminal equipment, the M-bit feedback information and the N-bit feedback information on L first PUCCH resources in the K first PUCCH resources in a first uplink subframe, or, when the terminal equipment receives the data on the licensed carrier(s) and the unlicensed carriers, transmitting (S240), by the terminal equipment, the N-bit feedback information on at least one second PUCCH resource and transmitting the M-bit feedback information on L first PUCCH resources in the K first PUCCH resources in a first uplink subframe, wherein L is a positive integer less than or equal to K, and the at least one second PUCCH resource is determined according to Downlink Control Information, DCI, configured for scheduling data transmission on the licensed carriers, wherein the first downlink subframe set comprises all downlink subframes corresponding to the first uplink subframe for transmitting the feedback information. <EOS>