APPARATUS FOR TRANSMITTING A SYNCHRONOUS SIGNAL IN A MULTI-ANTENNA SYSTEM

摘要

Provided is an apparatus for transmitting a synchronous signal using a plurality of transmitting antennas. The apparatus includes: a synchronous signal generating unit for generating a synchronous signal used for tracking synchronization of time or frequency; a transmission processing unit for allocating different sub-carriers to the plurality of transmitting antennas such that the sub-carriers do not overlap with each other, mapping the synchronous signal to the sub-carriers, and performing an IFFT (Inverse Fast Fourier Transformation) to generate OFDM (Orthogonal Frequency Division Multiplexing) symbols; a control information combining unit for controlling codes as a source for discriminating signals transmitted from the plurality of transmitting antennas such that the codes do not overlap with each other among the plurality of transmitting antennas; and the plurality of transmitting antennas for transmitting the OFDM symbols. The present invention reduces the effects of channel interference of each antenna caused by the transmission of a synchronous signal, and reduces the overhead of various pieces of control information in a multi-antenna system.