Patent ID: 7933371
Filing Date: 2011-04-26
Classification: H04B,H04L

Abstract:
1. A method for receiving a signal in an Orthogonal Frequency Division Multiplexing (OFDM) mobile communication system using multiple receive antennas, the method comprising: dividing a signal received via multiple receive antennas into a plurality of calculation regions each having a frequency-domain channel correlation exceeding a predetermined threshold and a time-domain channel correlation exceeding a predetermined threshold; separately calculating Minimum Mean-Squared Error (MMSE) coefficients for the calculation regions using pilot signals in the calculation regions; and restoring a transmission signal by performing MMSE detection on the plurality of calculation regions of the received signal using the MMSE coefficients, wherein each of the calculation regions are composed of a plurality of consecutive OFDM symbols and a plurality of consecutive subcarriers.