MULTIPLE INPUT MULTIPLE OUTPUT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING MOBILE COMMUNICATION SYSTEM AND CHANNEL ESTIMATION METHOD

摘要

the present invention is a type of multiple-input multiple-output system of an orthogonal frequency division multiplexing system using a channel estimation method in the present and , characterized in that comprises the following steps: receiving a plurality of reception antennas for each antenna of the orthogonal frequency division multiplexing system by using a pilot sequence received by the reception antenna channel, between the receiving antenna and the transmitting antenna all The calculation of a channel impulse response sequence and a channel frequency response sequence for a channel; Here, the pilot channel sequence is a comb pilot channel sequence, wherein the pilot channel symbols corresponding to all transmitting antennas occupying the same position in the frequency domain, the time domain are separated from each other. The invention also proposes a corresponding mobile communication system. The moving speed pilot channel sequence of the present invention can be applied to the faster radio channel. The invention hayeoseo consideration of the effect of the virtual sub-carrier of an orthogonal frequency division multiplexing system of the MIMO scheme, has the lower complexity and higher performance.