Patent ID: 7801088
Filing Date: 2010-09-21
Classification: H04L

Abstract:
1. A receiving apparatus of a mobile terminal receiving a transmitted signal in a synchronous Orthogonal Frequency Division Multiplexing (OFDM) system under a multi-cell environment, the receiving apparatus comprising: a demodulation start controller for performing frame synchronization and cell search using a received signal and for outputting information on a demodulation start point and a neighbor cell; a Fast Fourier Transform (FFT) unit for respectively converting time-domain signals, transmitted from multiple cells, into frequency-domain signals; a scramble code generator for generating scramble codes respectively corresponding to the neighbor cell, using the information output from the demodulation start controller, and a current cell on which the mobile terminal is located; a correlator for multiplying the frequency-domain signals output from the FFT unit with the respective scramble codes output from the scramble code generator and for outputting respective correlated signals; a plurality of demodulators provided corresponding to the current cell and a maximum number of neighbor cells, each of the plurality of demodulators for demodulating the respective correlated signals output from the correlator and for outputting demodulated respective correlated signals; and a decoder for decoding the demodulated respective correlated signals output from the plurality of demodulators and for restoring original information transmitted from the corresponding cell.