Methods of controlling tracker bandwidth in wireless communication systems

An apparatus for tracking on-time errors of data frames in a communication system, comprising:

• a buffer for accumulating signal samples of a data frame that are received in the system;
• a detector for retrieving first and second signal samples at different timings from the accumulated signal samples, for generating a first metric representing the first signal sample and a second metric representing the second signal sample, and for calculating a sum of the first and second metrics and a difference between the first and second metrics, wherein the calculated difference and sum values are used to determine an estimated on-time error for the received data frame and a corrected timing error control value to be applied to the on-time error;
• and
• a first comparator for evaluating the accuracy of the estimated on-time error based a signal quality metric to determine whether the corrected timing error control value is to be applied to the estimated on-time error or whether the timing adjustment for the on-time error is to be stopped.