Time-based and frequency-based distortion recovery

An apparatus comprising:

• a distortion estimation circuit configured to determine, based on a first symbol of a signal, a time domain representation of a distortion estimate of the first symbol using a distortion recovery receiver (DRR) technique;
• a subtraction circuit configured to subtract a frequency domain representation of the distortion estimate from a frequency domain representation of the first symbol to generate an updated estimate of the first symbol;
• and
• a symbol estimation circuit configured to determine a frequency domain representation of a second symbol of the signal using a value that is based on the frequency domain representation of the distortion estimate and that is further based on a frequency domain representation of a quantized version of the updated estimate of the first symbol.

An apparatus comprising:

• means for determining, based on a first symbol of a signal, a time domain representation of a distortion estimate of the first symbol using a distortion recovery receiver (DRR) technique;
• means for subtracting a frequency domain representation of the distortion estimate from a frequency domain representation of the first symbol to generate an updated estimate of the first symbol;
• and
• means for determining a frequency domain representation of a second symbol of the signal using a value that is based on the frequency domain representation of the distortion estimate and that is further based on a frequency domain representation of a quantized version of the updated estimate of the first symbol.