Pilot symbol generation for highly-spectrally-efficient communications

A system, comprising:

• a transceiver comprising:
• circuitry operable to generate a sequence comprising one or more pilot symbols and one or more information symbols;
• circuitry operable to transmit said sequence using a first transmit power setting for said one or more pilot symbols and a second transmit power setting for said one or more information symbols such that an average power of said transmitted sequence complies with a particular spectral mask;
• circuitry operable to determine phase noise and additive white Gaussian noise present in a received version of said transmitted sequence;
• and
• circuitry operable to, in response to said determined phase noise and additive white Gaussian noise, concurrently adjust said first transmit power setting and said second transmit power setting to achieve a desired balance between phase noise tolerance and additive white Gaussian noise tolerance.

A device, comprising:

• circuitry configured to
• generate a sequence comprising one or more pilot symbols and one or more information symbols;
• transmit said sequence using a first transmit power setting for said one or more pilot symbols and a second transmit power setting for said one or more information symbols such that an average power of said transmitted sequence complies with a particular spectral mask;
• determine phase noise and additive white Gaussian noise present in a received version of said transmitted sequence;
• and
• in response to said determined phase noise and additive white Gaussian noise, concurrently adjust said first transmit power setting and said second transmit power setting to achieve a desired balance between phase noise tolerance and additive white Gaussian noise tolerance.