Adaptive modulation coding apparatus and method for mobile communication device

The present invention is a combination of present invention relates to adaptive modulation and coding device of the mobile communication terminal, AMC BLAST (Bell-Lab Layered Space-Time) having an independent layer structure for each transmit antenna in the (Adaptive Modulation Coding), the transfer rate of the forward link It will have to improve. To this end, the present invention includes: a plurality of receive antennas; Using the received signals received through the multiple receive antennas and BLAST decoder for detecting each transmission antenna a symbol; And a channel estimator for estimating a downlink channel characteristic per transmission antenna by using the transmission antenna-specific symbols output from the BLAST decoder; A mobile terminal having an MCS level selector for selecting an optimal modulation scheme and a coding type of the forward channel by transmitting antennas according to the estimated transmission channel characteristics and antenna-specific forward; And comprising: a base station applies to the forward channel by transmitting antennas for the selected coding type and modulation scheme.