Patent ID: 7586992
Filing Date: 2009-09-08
Classification: H04L

Abstract:
1. A method of receiving signals in an orthogonal frequency division multiplexing (OFDM) mobile communication system using at least two transmit antennas and one receive antenna, comprising the steps of: (a) acquiring a final recovered sequence estimate of previous received symbols; (b) canceling an inter-symbol interference (ISI) signal component from a first received symbol sequence by using the final recovered sequence estimate; (c) acquiring a first recovered sequence estimate of the ISI-cancelled first received symbol sequence; (d) simultaneously recovering an inter-carrier interference (ICI) signal component from the ISI-cancelled first received symbol sequence and canceling an ISI signal component from a second received symbol sequence, in which the second received symbol sequence is received next to the first received symbol sequence by using the first recovered sequence estimate; (e) acquiring a second recovered sequence estimate of the ISI-cancelled second received symbol sequence; and (f) recovering an ICI signal component from the ISI-cancelled second received symbol sequence by using the second recovered sequence estimate, wherein the first received symbol sequence is received at a first time period and the second received symbol sequence is received at a second time period later than the first time period, and steps (c) to (f) are iterated a predetermined number of times.