Patent ID: 8184675
Filing Date: 2012-05-22
Classification: H04B,H04L

Abstract:
1. A method of controlling a receiver based on a signal received through a communication channel, comprising the steps of: collecting, by the receiver, a plurality of estimates of a channel parameter based on the signal received through the communication channel; determining a plurality of residual frequency offsets from the plurality of estimates of the channel parameter; and determining an operating mode of the receiver based on at least one of the plurality of residual frequency offsets, wherein determining the operating mode includes comparing a value of a function ζ of at least one of the plurality of residual frequency offsets with a threshold value; if the comparing indicates that the value of the function ζ crossed the threshold value, selecting a first group of estimates of the channel parameter for automatic frequency control (AFC) computations using the first group; and if the comparing indicates that the value of the function ζ did not cross the threshold value, selecting a second group of estimates of the channel parameter for AFC computations using the second group; and the first group is not the same as the second group.