A frequency allocation plan for a wireless communication system that accommodates growth in demand from a low density reuse pattern of twelve cells to a high efficiency reuse pattern of three cells. The available radio spectrum is first divided into three ranges and each range is further divided into...http://www.google.de/patents/US5974323?utm_source=gb-gplus-sharePatent US5974323 - Frequency plan for wireless communication system that accommodates demand growth to high efficiency reuse factors