MIMO SYSTEM, METHOD OF CONVERTING TO ANALOG SIGNAL IN MIMO TRANSMITTER AND METHOD OF CONVERTING TO DIGITAL SIGNAL IN MIMO RECEIVER

摘要

The present invention relates to an analog signal converting method using digital to analog converters, whose number is less than the number of transmission antennas, in an MIMO transmitter having a plurality of transmission antennas, to a digital signal converting method using analog to digital converters less than the number of receipt antennas in an MIMO receiver, and to a system which the same methods are applied to. The MIMO transmitter and the MIMO receiver give a signal delay to each chain, switch signals and forward the switched signals to one data converter for using one data converter in each chain group. [Reference numerals] (110) Sample symbol generating unit;(140) Up conversion unit;(210) Down conversion unit;(230) Data restoring unit;(AA) Antenna chain;(BB) DAC (one);(CC) ADC (one)