Patent ID: 8923329

Claim:
A method for system bandwidth management of a Mobile Station (MS) in a wireless communication system, the method comprising: determining, by the MS, a system bandwidth based on a primary preamble for frame synchronization, which a Base Station (BS) transmits; determining, by the MS, a number of guard subcarriers and a number of used subcarriers based on a Fast Fourier Transform (FFT) size and a bandwidth range among a plurality of bandwidth ranges divided between at least two channel bandwidths, and corresponding to the system bandwidth using a first table; and setting, by the MS, an operation parameter of a modem according to the FFT size, the number of guard subcarriers, and the number of used subcarriers, wherein the first table defines the number of guard subcarriers, and the number of used subcarriers according to the plurality of bandwidth ranges and the FFT size, and wherein the plurality of bandwidth ranges are classified based on a number of sub-bands corresponding to the number of used subcarriers.