Patent ID: 6507600
Filing Date: 2003-01-14
Classification: H04B,H04J,H04W

Abstract:
A communication system having a base station for communication with multiple remote units, the system comprising:a base station utilizing a plurality of sets of frequencies for selectively communicating with remote units in a predefined coverage area, said coverage area divided into N concentric regions, each concentric region being assigned one of said plurality of frequency sets such that for any given concentric region a different frequency set is assigned than the frequency sets assigned to all other adjacent concentric regions; said base station including means for communicating data to a remote unit over the set of frequencies associated with the respective concentric region as the remote unit travels from one concentric region to another; and at least one remote unit having means for communicating with said base station over the set of frequencies associated with the respective concentric region as the remote unit travels from one concentric region to another.