Systems and methods for the reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms

A method of adaptively controlling a digital waveshaping process, the method comprising:

• receiving reference information as a control input;
• monitoring at least one input symbol stream applied to the waveshaping process;
• monitoring an output of the waveshaping process, where the output includes a waveform that is pulse-shaped and upconverted from the at least one input symbol stream;
• updating a first parameter based, at least in part, on the monitored symbol stream and the control input, where the first parameter is used to select an impulse that is applied to the input symbol stream to at least partially reduce the magnitude of a signal peak in the output of the waveshaping process;
• and
• updating a second parameter used to select a band-limited pulse that is applied to the output of the waveshaping process.

An apparatus for adaptively controlling a digital waveshaping process, the apparatus comprising:

• means for receiving reference information as a control input;
• means for monitoring at least one input symbol stream applied to the waveshaping process;
• means for monitoring an output of the waveshaping process, where the output includes a waveform that is pulse-shaped and upconverted from the at least one input symbol stream;
• means for updating a first parameter based, at least in part, on the monitored symbol stream and the control input, where the first parameter is used to select an impulse that is applied to the input symbol stream to at least partially reduce the magnitude of a signal peak in the output of the waveshaping process;
• and
• means for updating a second parameter used to select a band-limited pulse that is applied to the output of the waveshaping process.