Patent ID: 6438185
Filing Date: 2002-08-20
Classification: H04L

Abstract:
A self-optimizing channel equalization and detection method comprising the steps of:receiving a signal, taking samples of the signal within each symbol period over a timeslot, calculating reference constellation points within each symbol period on the basis of a channel estimate, updating the channel estimate within each symbol period on the basis of an error between each sample point and the reference constellation point, the error having been processed by one or more adaptivity parameters, and defining, for bit detection, the signal path having the best error metrics in the timeslot on the basis of the error metrics calculated from the sample points on the basis of the channel estimate, wherein said one or more adaptivity parameters used in channel estimate update for processing the error is updated within each timeslot in a direction which tends to decrease the error metrics of the best defined signal path within a single-timeslot or multiple-timeslot observation period when being compared with the error metrics of a corresponding path in a previous timeslot.