| 摘要 |
PROBLEM TO BE SOLVED: To provide an enhanced calibration apparatus and method for controlling the phase and amplitude of a signal in a smart antenna multicarrier communication system. SOLUTION: The apparatus includes: a scheduler which allocates a data signal to a plurality of carriers, transmits the data signal to a baseband processor and performs control to generate a calibration signal; a calibration signal processor which allocates the calibration signal on the non-data carriers under the control of the scheduler and calculates a calibration vector using the calibration signal and a feedback calibration signal (the calibration signal passed through a transmission path); and the baseband processor which receives the calibration vector value calculated by the signal processor, calibrates a beam vector by applying the calibration vector value and transmits the calibrated data signal in the transmission path. COPYRIGHT: (C)2006,JPO&NCIPI
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