AMPLIFICATION CONTROLLER FOR RECEIVER IN COMMUNICATION SYSTEM WITH MULTIPLE CARRIERS Russian patent published in 2010 - IPC H03G3/20 

FIELD: radio engineering.

SUBSTANCE: receiver in communication system OFDM includes power detector and amplification controller. Power detector determines total power of received signal of OFDM, for instance by calculation of ADC data samples power and power averaging. Amplification controller controls amplification of receiver by discrete steps of amplification and in one direction, for instance from mode of lowest amplification to mode of highest amplification on the basis of determined total power of received signal. Amplification controller puts receiver in mode of lowest amplification. Then amplification controller detects condition of low total power of received signal, for instance by comparison of determined total power of received signal to specified threshold value that actually represents absence of signal. Amplification controller changes receiver to mode of higher amplification, if condition of low total power of received signal was detected, otherwise it preserves current mode of amplification.

EFFECT: improved accuracy of received signal power assessment.

28 cl, 5 dwg