| 摘要 |
Provided are a radio base station device, a mobile terminal device, and a wireless communication method, which can efficiently use a sounding reference signal (SRS) in an LTE-A system. The wireless communication method is characterized in that the radio base station device subjects a transmission signal that includes transmission information about the SRS in each of the transmission antennae to OFDM modulation and transmits the OFDM modulated transmission signal, while the mobile terminal device receives the signal with the transmission information, controls the transmission mode for the SRS in each of the transmission antennae based on the transmission information, and transmits the SRS to each of the transmission antennae in the transmission mode. |
