METHOD AND APPARATUS OF DEMODULATING DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: A method for demodulating a downstream link signal in a wireless communication system and a device thereof are provided to efficiently use wireless resources by controlling a length of a CP through proper scheduling. CONSTITUTION: A first OFDM(Orthogonal Frequency Division Multiplexing) signal is received from a first node servicing a terminal. A second OFDM signal is received from a second node. The first and the second OFDM signals are demodulated in an FFT(Fast Fourier Transform) section. The first and the second OFDM signals are a normal mode signal having a first CP(701) or a cooperative mode having a second CP(702). A length of the second CP is longer than a length of the first CP. [Reference numerals] (701) Short CP; (702) Long CP; (703) Normal mode demodulation; (704) Cooperative mode demodulation; (705) Relay delay; (AA) First OFDM signal; (BB) Second OFDM signal