Multi-stage interference suppression

A signal reception method comprising:

• producing a first equalized signal and a first estimate of a channel by operating on a first portion of a received signal received over the channel;
• producing a second equalized signal using the first equalized signal and one of a linear estimator and a non-linear estimator;
• estimating a first estimate of symbols in the received signal and a second estimate of the channel from a second portion of the received signal;
• generating a second estimate of symbols in the received signal based on the second estimate of the channel;
• extracting timing information from the received signal;
• and
• generating an estimate of a carrier frequency from the received signal.

A non-transitory machine-readable medium comprising instructions for receiving a signal at a receiver, the instructions comprising:

• code for producing a first equalized signal and a first estimate of a channel by operating on a first portion of a received signal received over the channel;
• code for producing a second equalized signal using the first equalized signal and one of a linear estimator and a non-linear estimator;
• code for estimating a first estimate of symbols in the received signal and a second estimate of the channel from a second portion of the received signal;
• code for generating a second estimate of symbols in the received signal based on the second estimate of the channel;
• code for extracting timing information from the received signal;
• and
• code for generating an estimate of a carrier frequency from the received signal.

A signal reception apparatus comprising:

• means for producing a first equalized signal and a first estimate of a channel by operating on a first portion of a received signal received over the channel;
• means for producing a second equalized signal using the first equalized signal and one of a linear estimator and a non-linear estimator;
• means for estimating a first estimate of symbols in the received signal and a second estimate of the channel from a second portion of the received signal;
• means for generating a second estimate of symbols in the received signal based on the second estimate of the channel;
• means for extracting timing information from the received signal;
• and
• means for generating an estimate of a carrier frequency from the received signal.

A communication device comprising:

• a memory;
• and
• a processor configured to execute instructions to:
• produce a first equalized signal and a first estimate of a channel by operating on a first portion of a received signal received over the channel;
• produce a second equalized signal using the first equalized signal and one of a linear estimator and a non-linear estimator;
• estimate a first estimate of symbols in the received signal and a second estimate of the channel from a second portion of the received signal;
• generate a second estimate of symbols in the received signal based on the second estimate of the channel;
• extract timing information from the received signal;
• and
• generate an estimate of a carrier frequency from the received signal.