Patent ID: 7587009
Filing Date: 2009-09-08
Classification: H04L

Abstract:
1. A method of estimating a transmission channel in a digital communications system including a receiver for receiving signal bursts of a communications signal via the transmission channel, the receiver comprising a channel estimation-based equalizer having an equalizer window, the method comprising: receiving a signal burst of the communications signal over the transmission channel, the signal burst including a sequence of training symbols; determining a desired synchronization position of the sequence of training symbols with respect to the received signal burst; wherein the step of determining a desired synchronization position further comprises determining a number of estimates of the transmission channel as a function of the synchronization position and a size of the equalizer window (m); determining a desired synchronization position and a desired size of the equalizer window by calculating an error measure based on the received signal burst and the determined estimates for a number of selected values of the synchronization position and of the size of the equalizer window, where the values of the size of the equalizer window are selected between predetermined upper (mu) and lower (ml) bounds.