A method for selecting a cell in a wireless communication system includes performing a cell selection process in a mobile terminal, which includes receiving, in the mobile terminal, information from each of at least one cell, each information including a preference value, where each preference value indicates a congestion level of a corresponding one of the at least one cell, and selecting, in the mobile terminal, one of the at least one cell according to the received preference value. The method for selecting a cell a wireless communication system further includes attempting, by the mobile terminal, to connect with the selected cell by performing a random access procedure with the selected cell.