System and method for spatial multiplexing with mimo technology

The present invention relates to a spatial multiplexing detection system and method using multiple-input multiple-output (MIMO) technology. A multiple-input multiple-output (MIMO) spatial multiplexing detection system and method using a technology, a certain number of terminals of the set of terminals using the same time slot in the spatial multiplexing system, a terminal group to a base station with multiple antennas installed simultaneously it accesses, and simultaneous connection to the terminals so to distinguish using a MIMO detection scheme. In this way, it improves the overall system capacity and grouping the terminals in the direction in which the channel capacity to a maximum it is possible to further improve the channel capacity.