COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD

摘要

This communication system is provided with a macrocell base station device, a compact base station device that sets a region of part of the cell of the macrocell base station device as a cell, and a mobile station device. The mobile station device is provided with: a transmission/reception unit that uses a first frequency band to communicate with the macrocell base station device or the compact base station device; and a communication control unit that uses a second frequency band that is different from the first frequency band to generate request information indicating that communication with the compact base station device or the macrocell base station device with which communication is not being performed by the transmission/reception unit is requested, and transmits the request information to the macrocell base station device or the compact base station device with which communication is being performed by the transmission/reception unit.