SYSTEM AND METHOD FOR AVOIDING MOBILE RELAY INTERFERENCE TO PRIMARY SYSTEM ON AUTHORIZED FREQUENCY SPECTRUM

摘要

The present invention provides a system and method for avoiding mobile relay interference to a primary system on an authorized frequency spectrum. In accordance with the system of the present invention, and with an available-spectrum information provision unit which communicates with the primary system, determine, in accordance with operation information coming from said primary system, authorized-spectrum available-spectrum information capable of being used by a mobile relay when said mobile relay is located in various positional regions surrounding the primary system, and provide the available-spectrum information corresponding to each positional region to a secondary system; using the secondary system and based on the available-spectrum information corresponding to the various positional regions, determine at least one of the positional regions, of the primary system, which is experiencing interference from a mobile relay located within the range of base-station coverage within the secondary system, and provide each determined positional region to each mobile relay; when the mobile relay moves to an interference region, provide the present positional region to the base station in order to allow the base station to adjust the mobile relay in accordance with at least one group of available-spectrum information which corresponds to the positional region.