Spectrum allocation to accommodate two or more competitive systems

Abstract

The 1850-1990-MHz band is being considered for shared use with the fixed service microwave users (point-to-point microwave). In order to use this band most effectively it should also be shared by several competitive broadband-CDMA PCN systems. How two or more competitive systems can share the spectrum without interfering with each other, without significantly decreasing the chip rate of each PCN system, and without increasing the level of interference seen by the fixed service microwave user is demonstrated.<>