A mobile radio communication system has base stations 1a, 1b, 1c at the centers of major service areas A, B, C defined by a contiguous array of hexagons or partially overlapping circles, and repeater or one way relay stations 3a-3m at each vertex or intersection point. The repeater stations have directional...http://www.google.fr/patents/US4727590?utm_source=gb-gplus-shareBrevet US4727590 - Mobile radio communication system with repeater station grid
Mobile radio communication system with repeater station grid