Patent ID: 7496148

Claim:
An apparatus for receiving data in a mobile communication system which receives through N reception antennas modulated symbol streams transmitted through M transmission antennas from a transmitter, the apparatus comprising: a channel estimator connected to each of the N reception antennas, for channel-estimating reception symbol streams output from the N reception antennas; an interference suppressor connected to each of the N reception antennas, for eliminating a reception symbol in at least one predetermined position as an interference component from each of reception symbol streams output from the N reception antennas; M modulators for modulating each of all information bit streams that can be possibly transmitted from the transmitter, in a predetermined modulation scheme, and outputting modulated symbol streams; M puncturers for puncturing at least one modulated symbol in a predetermined position from each of modulated symbol streams output from the M modulators; and a transmission symbol stream detector for detecting transmission symbol streams transmitted from the transmitter by considering parallel transition based on the reception symbol streams and a hypothetic channel output in a case where modulated symbol streams output from the M puncturers were transmitted through the same channel as a channel estimated by the channel estimator.