Patent ID: 7092437
Filing Date: 2006-08-15
Classification: H04L

Abstract:
1. A method for determining an optimal training interval for a channel of a communications system, the method comprising: (a) receiving first channel estimations of a signal carried by a channel of a communications system, wherein the first channel estimations are generated by a first channel estimator, and wherein the communications system includes a normal mode for utilizing the channel to carry user data, a training mode for training the first channel estimator, and a failure mode for recovering channel communication after channel failure; (b) determining a time distribution of the channel transition from the normal mode to the failure mode, wherein channel failure occurs when error in the first channel estimations exceeds a first predetermined threshold; and (c) applying Markovian analysis to the time distribution of the channel transition to determine a first training interval for training the first channel estimator such that channel utilization in the normal mode is maximized.