Provided is a radio communication system which enables optimal cell switching. A broker femtocell base station is installed in an entrance of the buildings, and sub-femtocell base stations are installed in the buildings. An adjacent cell list and broker femtocell priority selection setting information are set as system information notified from a macro cell, the adjacent cell list including a broker PSC of the broker femtocell base station and PSCs of adjacent macro cells, the broker femtocell priority selection setting information being the information for preferentially selecting the broker femtocell base station. An adjacent cell list and sub-femtocell priority selection setting information are set as system information of the broker femtocell, the adjacent cell list including a PSC of a macro cell, and a sub PSC of an adjacent femtocell, the sub-femtocell priority selection setting information being the information for preferentially selecting the sub-femtocell base station.