A method and device for performing a hybrid automatic repeat request in a wireless access system that supports collaborative transmission. The method includes: receiving, by the first wireless device, an allocation of a secondary carrier from a base station through a primary carrier. The primary carrier is used for data transmission and reception with the base station and the secondary carrier is used for data transmission and reception with a second wireless device. The method also includes: receiving configuration information of the secondary carrier from the base station; transmitting data to the second wireless device on an uplink subframe of the secondary carrier based on the received configuration information; and receiving acknowledgement or non-acknowledgement with respect to the transmitted data on a downlink subframe of the secondary carrier linked with the uplink subframe.