Patent ID: 7346131
Filing Date: 2008-03-18
Classification: H04L

Abstract:
1. A synchronization unit for performing fine synchronization in the Time Domain, the synchronization unit comprises: storage configured to store reference signals; a multiplier capable of calculating sum of zero product shift, sum of minus one product shift, and sum of plus one product shift, based on at least said reference signals and a received signal; a signal analyzer capable of computing left, center, and right cross-correlation points based on said sum of minus one product shift, said sum of plus one product shift, and said sum of zero product shift; a timing error estimation unit capable of estimating timing error of said received signal based on said left cross-correlation point and said right cross-correlation point; a phase estimation unit capable of estimating common phase error of said received signal based on said sum of zero product shift; a correlation level estimation unit capable of calculating correlation level indicative of at least a correlation between said received signal and a ghost thereof based on said center point.