Frequency channel assignment system, base station, control station, inter-system common control apparatus, frequency channel assignment method, and control method

摘要

This invention relates to a frequency channel assignment system which enables adaptive overlapping use of the same frequency band in a plurality of radio communications systems. The frequency channel assignment system includes radio communications systems (1) and (2) which use a common frequency band, and controllers (31) and (141). The controllers (31) and (141) include a system characteristics information management function configured to manage system characteristics information showing characteristics of frequency channels in the radio communication systems (1) and (2) and a frequency channel assignment function configured to assign frequency channels to each of the radio communications systems (1) and (2), based on the system characteristics information and channel status information showing status of frequency channels, so as to avoid inter-system interference.