Method for processing orthogonal frequency division multiplexing signal and method and device for estimating specific frequency domain pilot signal

摘要

A method for processing an orthogonal frequency division multiplexing (OFDM) signal includes steps as follows. A second signal is updated to be a received OFDM signal on a frequency domain, and a first signal is updated to be the original second signal. A channel is estimated according to the first and second signals. An Inter-Symbol Interference (ISI) result is estimated. The second signal or the first signal is updated according to the ISI result. A first Inter-Channel Interference (ICI) result is estimated. A second ICI result is estimated by using the first ICI result. The second signal or the first signal is updated according to the second ICI result. The first signal is equalized, and the equalized first signal is output. Additionally, a method and device for estimating a specific frequency domain pilot signal to the method for processing the OFDM signal are illustrated.