Patent ID: RE44010

Claim:
A bidirectional communication system using a CDMA air interface between a plurality of subscriber units communicating with a base station, the system comprising: a scalable base station configured from up to a select maximum number n of modular colocated base station units for supporting incremental communication capacity based on the number of modular base station units, each base station unit for communicating with a predefined number of subscriber units; each base station unit transmitting a unique CDMA global pilot channel signal at a full power level for a discrete limited time interval which time interval is distinct from the time intervals of all other base station units in the scalable base station configuration; and a plurality of subscriber units for CDMA communication with the scalable base station, each subscriber unit having means for selectively receiving global pilot channel signals from up to n modular base station units, such that reception of each global pilot channel signal is in a discrete time interval synchronized with the full power level transmission time interval of the respective global pilot channel signal which time interval is distinct from the reception of all other transmission time intervals of the global pilot channel signals.