TIME DOMAIN CHANNEL ESTIMATION METHOD AND APPARATUS FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

摘要

In an orthogonal frequency division multiplexing (OFDM) system, channel estimates of pilot subcarriers in a current input symbol are obtained at first, and then time axis channel estimation for data subcarriers positioned between adjacent pilot subcarriers of the time axis is performed by linear interpolating channel estimates of the adjacent pilot subcarriers during the time interval of the current input symbol.