CREST FACTOR REDUCTION OF INTER-BAND CARRIER AGGREGATED SIGNALS

摘要

A method, system and circuit for crest factor reduction of inter-band multi-standard carrier aggregated signals are disclosed. In one embodiment, a method includes calculating the amplitude of each of the plurality of carrier signals of the inter-band carrier aggregated signals. An estimate of an envelope of a combination of the carrier signals is produced based on a sum of the calculated amplitudes of the plurality of carrier signals. The estimate of the envelope of the combination of the carrier signals is compared to a clipping threshold to determine whether to clip each of the plurality of carrier signals.

主权项

1. A method of reducing a crest factor of inter-band carrier aggregated signals, the inter-band carrier signals comprising a plurality of carrier signals, the method comprising:
calculating the amplitude of each of the plurality of carrier signals of the inter-band carrier aggregated signals; producing an estimate of an envelope of a combination of the carrier signals based on a sum of the calculated amplitudes of the plurality of carrier signals; and comparing the estimate of the envelope of the combination of the carrier signals to a clipping threshold to determine whether to clip each of the plurality of carrier signals.