Patent ID: 7426392
Filing Date: 2008-09-16
Classification: H04B

Abstract:
1. A wireless communicator comprising: a first communication receiver configured to communicate with a first base station prior to a handoff; a search receiver; and a second communication receiver configured to communicate with a second base station after the handoff, wherein the search receiver comprises: a searcher configured to search for one or more base stations including the second base station by summing detected multipath components on a per base station basis received from the one or more base stations that exceed a variable path detection threshold and to refrain from summing multipath components received from the one or more base stations that do not exceed the variable path detection threshold; a power profile memory configured to store measured energy levels associated with the detected multipath components for each base station; and a path threshold calculator configured to dynamically vary the variable path detection threshold on a per base station basis over a plurality of searches for each of the base stations based on the measured energy levels stored in the power profile memory, wherein based on the stored measured energy levels associated with the detected multipath components for each base station, a handoff decision is made to cause the second communication receiver to communicate with the second base station and cause the first communication receiver to refrain from communicating with the first base station.