| 摘要 |
The present invention is designed to feed back channel state information, from which adequate received quality can be calculated, upon CoMP transmission. A radio communication system is provided, which includes a plurality of radio base station apparatuses and a user terminal which is configured to be able to communicate with the plurality of radio base station apparatuses, and, in this radio communication system, a radio base station apparatus (eNB) has a transmission section configured to transmit a reference signal for channel state measurement to a user terminal (UE), and a receiving section configured to receive channel state information generated in the user terminal (UE) based on the reference signal, and the user terminal (UE) has a channel state information generating section configured to be able to generate a plurality of pieces of channel state information, including channel state information from which interference from a coordinated cell is cancelled, when the plurality of radio base station apparatuses coordinate and perform transmission, and a transmission section configured to transmit the plurality of pieces of channel sate information to the radio base station apparatus. |
