Crest Factor reduction IP

Crest Factor reduction block minimizes the likelihood that a transmission side Power Amplifier (PA) gets saturated while transmitting a OFDM signal common in 5G. This can occur when a OFDM waveform has a high Peak to Average Power Ratio (PAPR).

The CFR block needs to sense the maximum peak on a Symbol and reduce the maximum without altering the phase shift. CFR transmits the same QAM symbols with corrected amplitude as long as the amplitude exceeds certain magnitude.