Patent ID: 7555077

Claim:
A method for scheduling activation of a path-searcher for a mobile communication terminal capable of receiving multi-path signals originating from scattered signals transmitted from at least one transmitter of a telecommunication system, comprising the steps of: deriving a first and a second power delay profile, each profile comprising delay powers of a signal at different delays from the activation of the path-searcher; computing a value of the power delay profile discrepancy between said first and second power delay profiles; and computing a time lag to the next path-searcher activation, which is inverse proportional to said value of the power delay profile discrepancy, wherein the scheduling of the path-searcher activation is initialized by setting the time lag to the next path-searcher activation to the minimum time lag, τ min , if no previous power delay profile is retrievable, and wherein the path-searcher is activated to derive the powers of signals received at a number of delays during the path-searcher activation, which powers forms the power delay profile, and wherein the discrepancy between at least a subset of the delays of the second power delay profile and the corresponding delays of the first power delay profile is computed to derive the value of the power delay profile discrepancy; wherein the above steps are performed by a processor in the receiver of a mobile terminal.