Apparatus and method for uplink transmission in multiple antenna system

PURPOSE: An uplink transfer method and apparatus thereof are provided to switch a space process in a multiple antenna system are provided to reduce transmission power unbalance between antennas. CONSTITUTION: A processor(1210) is connected to an RF(Radio Frequency) unit(1240). The processor processes a plurality of first transmission symbols by using a first space process. The processor processes a plurality of second transmission symbols by using a second space process. The second space process matrix, which is used for the second space process, switches one column or one row of a first space process matrix.