Patent ID: 7103093

Claim:
A method of estimating demodulating parameters of a propagation channel between a source transmitting data and a receiver, the method using at least one learning sequence that comprises symbols and that is known to the receiver to decode a data signal, the data signal being sent in successive frames, each frame being partitioned into a specified number of time slots, the method comprising: initializing K and L variables, where K represents a frequency of updating of power and L represents an updating factor for delays; choosing a search window; estimating a complex amplitude and energy of each predominant path situated in the search window over a duration of each of the number of time slots; demodulating data bits of each predominant path; updating a complex amplitude and energy of each possible path of the search window every K slots; and selecting, every K×L slots, the predominant paths that are used in the estimating and demodulating steps.