PC-CFR PAPR PEAK CANCELLATION CREST FACTOR REDUCTION APPARATUS AND METHOD FOR REDUCING PEAK TO AVERAGE POWER RATIO AND APPARATUS FOR DETERMINING PEAK VALUE

摘要

A clipping unit for extracting a clipping signal whose amplitude value exceeds a threshold value from the first baseband complex signal; A plurality of amplitude values included in the extracted clipping signal are received in time order, a first amplitude value of a plurality of input amplitude values is inputted after a first amplitude value and a second amplitude value inputted before the first amplitude value, A peak value determining unit that determines the first amplitude value as a peak value when the first amplitude value is greater than the third amplitude value; A CPG allocator for allocating the determined peak value to a cancellation pulse generator (CPG); And a subtractor for subtracting the offset signal generated from the CPG from the first baseband complex signal to output a second baseband complex signal having a reduced peak to average power ratio (PAPR). A PC-CFR (peak cancellation crest factor reduction) device according to the example is disclosed.