METHOD AND SYSTEM FOR DETECTING ADJACENT CHANNEL INTERFERENCE FOR OFDM/OFDMA BASED BROADBAND WIRELESS ACCESS

摘要

[0055] Disclosed are a method and system for detecting adjacent channel interference between two systems having neighboring frequencies. The method and system calculates (802) a Fast Fourier Transform (FFT) output for one or more upper and lower frequency side null subcarriers and center data subcarriers of a frequency channel. Power values are calculated (804, 806) for the upper and lower frequency side null subcarriers and the center data subcarriers for use in determining a presence of adjacent channel interference (ACI).