Patent ID: 6895058
Filing Date: 2005-05-17
Classification: H04B

Abstract:
1. An efficient system for determining if a paging channel should be received and processed via a wireless communications device based on a quick paging channel in a wireless communications system comprising: first means for receiving an electromagnetic signal including pilot signal and quick paging signal components; second means for providing one or more initial quality parameters indicative of a quality of a signal environment in which said electromagnetic signal is propagating based on said pilot signal, said one or more initial quality parameters associated with a first symbol of said quick paging signal; third means for ascertaining whether a second symbol of said quick paging channel signal or said subsequent paging channel should be processed based on said one or more initial quality parameters and providing a first indication in response thereto, wherein said third means further includes means for providing a third indication indicative as to whether said wireless communications device should be placed in a sleep state based on a comparison of a first decision metric to a second decision threshold, wherein said first decision metric (D where D 1 is said first decision metric; OP 1 is a dot product, cross product, or a combination thereof of said first symbol with an estimate of said pilot signal associated with said first symbol; and E pilot1 is an energy of said pilot signal associated with said first symbol; and fourth means for determining if said subsequent paging channel should be processed based on a second quality parameter and a combined decision metric associated with both said first symbol and said second symbol when said first indication indicates that said second symbol should be processed and providing a second indication response thereto.