There is provided a method for enabling a user equipment to transmit feedback information. The method includes generating feedback data representing the feedback information, the feedback data expressed by a binary number having N bits, where N is an integer, the N bits comprising 2 levels, the feedback information represented by one of the 2 levels, wherein different types of the feedback information are assigned to different levels and transmitting the feedback data. Overheads incurred by transmission of feedback information can be reduced.