Patent ID: 6928064
Filing Date: 2005-08-09
Classification: H04B,H04J,H04L,H04Q,H04W

Abstract:
1. A method for monitoring on a reverse link idling mode connections between a base station and a plurality of idling subscriber units that are powered on, but not actively sending data, the method comprising: making available a plurality of orthogonal subchannels within at least one Code Division Multiple Access (CDMA) radio frequency (RF) channel; assigning a shared orthogonal subchannel to at least two different idling subscriber units, but utilizing different time slots of the shared orthogonal subchannels; for each idling subscriber unit assigned the shared orthogonal subchannel, sending a respective heartbeat signal within its assigned time slot at a data rate that is low enough to maintain bit synchronization with the base station; and tracking the respective heartbeat signals within the assigned time slots by