1. A method for wireless communications, the method comprising:receiving configuration information comprising a resource start offset;
receiving downlink control information (DCI) on an enhanced physical downlink control channel (EPDCCH) using at least one of control channel elements (CCEs), wherein the DCI comprises a resource offset for a hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback;
determining a resource of a physical uplink control channel (PUCCH) based on a first CCE of the CCEs, the resource offset in the DCI, and the resource start offset in the configuration information; and
transmitting a HARQ-ACK signal on the PUCCH using the determined resource to a base station,
wherein an index of the resource of the PUCCH is determined as a sum of a first parameter determined from the first CCE, a second parameter determined from the resource offset, and a third parameter configured by the resource start offset, when a transmission type of the EPDCCH is distributed transmission.