Method for transmitting and receiving synchronization channels

PURPOSE: A method for transmitting and receiving synchronization channels is provided to include a frequency reuse factor to a synchronization channel, thereby conveniently discriminating location of a super frame header. CONSTITUTION: A primary synchronization channel is transmitted in a super frame header. The primary synchronization channel has a predetermined frequency reuse factor. In the rest frame, a secondary synchronization channel is transmitted. The secondary synchronization channel has a frequency reuse factor different to the frequency reuse factor of the primary synchronization channel. The super frame header does not belong to the rest frame. A sub frame header of the super frame includes a BCH(broadcasting channel).