| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio communication device which can perform non-linear distortion compensating processing, reduce power consumption of a battery, and resultantly downsize. <P>SOLUTION: A mobile radio device 1 is provided with a transmission data generator 5, a compensating coefficient storage 7 storing compensating coefficient data, a non-linear distortion compensator 9 preliminarily distortion-compensating a signal from the transmission data generator 5 by using the compensating coefficient data of the compensating coefficient storage 7, a transmitter 10 performing an orthogonal modulation of the distortion-corrected transmission data, a power amplifier 11 amplifying the signal to a predetermined power, and an antenna 12 emitting the signal amplified as a radio wave. On the other hand, a feedback 6 demodulating a part of the signal whose power is amplified to be outputted to a coefficient updating portion 8; and the coefficient updating portion 8 inputting the signal from the feedback portion 6 and the signal from the transmission data generating portion 5, calculating a new compensating coefficient, and writing the data of the compensating coefficient in the compensating coefficient storing portion 7; are provided in the inside of a charger 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
