Patent ID: 6388998
Filing Date: 2002-05-14
Classification: H04J,H04W

Abstract:
A code division multiple access communication system, comprising:at least one base station having a plurality of antennas radiating to a plurality of sectors of a fixed wireless loop cell, each sector including two protection sectors and a basic sector between said two protection sectors; and in each of said sectors, a respective plurality of fixed terminals configured to send and receive code division multiple access signals to and from said base station, ones of said terminals in protection sectors subject to potential mutual interference being narrower than the basic sector and further configured to send and receive code division multiple access signals using codes selected from different sets of codes, and ones of said terminals in said basic sectors being configured to send and receive code division multiple access signals using codes that are not in any of said different sets of codes; each of said two protection sectors being narrower than said basic sector.