Patent ID: 6799026
Filing Date: 2004-09-28
Classification: H04B

Abstract:
A diversity reception handset for use within a wireless communications network including at least one base station for sending to the handset a pilot and a plurality of increments of traffic separated by separation intervals, the handset comprising:a first antenna; a second antenna electrically separated from the first antenna in a predetermined way; a receiver coupled to the first and second antennas; an antenna switch coupled to the antennas for switching the receiver between the two antennas; a time-of-arrival searcher circuit coupled to the receiver and responsive to the pilot for determining expected time of arrival of each increment of said plurality of increments; a controller coupled to the switch and the searcher circuit for controlling the switch based upon determined expected time of arrival of said each increment; first and second pilot integrators coupled to the receiver and controlled by the controller, the first pilot integrator for integrating pilot received via the first antenna, the second pilot integrator for integrating pilot received via the second antenna; and a pilot switch coupled to the pilot integrators and controlled by the controller for switching between said first and second pilot integrators in synchronism with said antenna switch; and a coherent demodulator coupled to said receiver and sequentially connected to said first and second pilot integrators for coherently demodulating each received increment of traffic in accordance with integrated pilot corresponding to a said antenna through which the increment passed to the receiver.