Patent ID: 6314131
Filing Date: 2001-11-06
Classification: H04L

Abstract:
In a radiotelephone communications system, the system including a transmitter transmitting a signal comprising a plurality of symbols grouped within time slots, a method of estimating a signal transfer characteristic at a receiver for each of the symbols, the method comprising the steps of:a) calculating an instantaneous transfer characteristic estimation for each one of a first plurality of slots, the first plurality of slots including a first slot under analysis;b) combining the instantaneous channel estimations calculated for the first plurality of slots, creating a first multi-slot averaged estimate;c) calculating an instantaneous transfer characteristic estimation for each one of a second plurality of slots, the second plurality of slots including a second slot under analysis;d) combining the instantaneous channel estimations calculated for the second plurality of slots, creating a second multi-slot averaged estimate;e) interpolating between said first multi-slot averaged estimate and said second multi-slot averaged estimate;f) calculating a transfer function estimate for a symbol within said first slot under analysis according to the interpolation of step (e).