TECHNIQUES FOR ESTIMATING RECEIVED SIGNAL STRENGTH AND CARRIER TO INTERFERENCE AND NOISE RATIO IN OFDM SYSTEMS

摘要

A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing (302) a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated (308) based on the transformed signal and a preamble sequence of the target base station to provide (314) a coarse received signal strength indicator for the target base station.