Urban Microcellular System and Method of Managing Radio-Resource in the Urban Microcellular System

摘要

PURPOSE: A downtown radio communication system and a method for managing radio resources thereby are provided to increase the reuse efficiency of radio resources by reducing an interference to a neighbor cell using many directional antennas in one cell and making an identical channel used in the neighbor cell without any interference. CONSTITUTION: Directional antennas(A,B) are arranged at both ends of a straight line type cell, and their antenna beams are tilted. In this case, the degree of tilting is determined by the height of each antenna and the distance between the antennas. In case that a user in the zone of antenna A moves to the zone of antenna B, inter-antenna switching is required. At a zone where the coverage of two antennas are superposed, a macro diversity effect is obtained in reverse communication.