Mobile communication system and method employing directional service area coverage

Abstract From the Canadian patent

A communication method and system for providing two-way radio communication links between fixed stations and mobile units particularly, suitable for use in mobile telephone communications. A geographical service area is sectionalized through the use of omnidirectional and directional antennas resulting in increased call capacity for a given number of available communication channels. An orderly cost-effective, manner for accommodating service area expansion a dynamic channel, assignment technique for accommodating variations in user density and a technique for maintaining an established call as a mobile unit moves throughout the sectionalized service area are also disclosed. -2-