| 摘要 |
PROBLEM TO BE SOLVED: To provide a base station device, mobile station device, communication system, and communication method that can perform efficient processing by suppressing the number of cell search.SOLUTION: In a communication system in which communication is performed between a base station device constructing one cell and a mobile station device, the mobile station device comprises: reference signal generating means that acquires a physical cell identifier to identify a cell by performing cell search for a downlink synchronization signal, and uses the physical cell identifier to generate a first reference signal, and on the other hand, acquires a virtual cell identifier from RRC signaling, and uses the virtual cell identifier to generate a second reference signal; and transmission means for transmitting the first and second reference signals to the base station device respectively. |
