Signal compensation in high-speed communication

摘要

A receptor of wireless signal in a wireless communication system can be configured to correct for degradations of signal quality. The reception apparatus can include a filter which is configured to create a filtered signal by make corrections to a reception signal which carries a symbol. Based on the created filtered signal, a symbol can be decided and weighted to evaluate the error of the original reception signal. Using the weighting information, a parameter of the filter can be updated to more accurately correct the reception signal.

主权项

1. A reception apparatus comprising:
a filter unit configured to create a filtered signal by correcting a reception signal that carries a symbol sequence; a decision unit configured to decide a symbol based on the filtered signal; a weighting unit configured to weight an error evaluation in accordance with a position of a signal point of the symbol decided by the decision unit; an updating unit configured to update a correction parameter of the filter unit based on the reception signal and the error evaluation weighted by the weighting unit; and a compensator provided outside an update loop including the filter unit, the decision unit, the weighting unit, and the updating unit, the compensator being configured to perform, using a plurality of complex compensation parameters in parallel, a geometric operation on the filtered signal, and configured to select an output symbol sequence from a plurality of resulting trial symbol sequences based on a particular error evaluation.