Patent ID: 8792897

Claim:
A method for transmitting a Super Frame Header (SFH), a Primary Advanced preamble (PA-preamble) and a Secondary Advanced preamble (SA-preamble) in a femto base station, the method comprising: obtaining segment information from a macro base station which overlays the femto base station; identifying a subcarrier set for the SA-preamble used by the macro base station based on the segment information; transmitting the SA-preamble indicating a cell identity of the femto base station on the subcarrier set for the SA-preamble different from the identified subcarrier set for the SA-preamble used by the macro base station; transmitting the SFH including essential control information on predefined frequency band regardless of the identified subcarrier set for the SA-preamble; and transmitting the PA-preamble including information of system bandwidth on the subcarrier set for the PA-preamble, wherein the subcarrier set for the PA-preamble of the femto base station is the same as that of the macro base station.