| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a base station device, mobile terminal device and communication control method which can improve estimation accuracy of channel quality. <P>SOLUTION: The communication control method comprises: a step of arranging a CSI-RS (Channel State Information-Reference Signal) which is a reference signal for downlink channel estimation to a resource of a sub frame for CSI-RS transmission; a step of setting a resource, where the CSI-RS is arranged in an adjacent area, to a muting resource in the sub frame for CSI-RS transmission; and a step of notifying a mobile terminal device of transmission interval information showing the transmission interval of the sub frame which is set to the same timing in the transmission cycle of the sub frame for CSI-RS transmission in an own area and the transmission cycle of the sub frame for CSI-RS transmission in the adjacent area. <P>COPYRIGHT: (C)2012,JPO&INPIT |
