SIGNALING METHOD, BASE STATION DEVICE, MOBILE TERMINAL DEVICE, AND RADIO COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a signaling method for signaling muting resource position information with a simple configuration, and also to provide a base station device, and a mobile terminal device.

SOLUTION: A blank resource signaling method includes: a step for arranging CSI-RSs (Channel State Information-Reference Signals) being reference signals for downlink channel estimation in CSI-RS resources assigned for CSI-RS transmission; a step for setting resources, where the CSI-RSs are arranged in adjacent areas, to blank resources; and a step for transmitting position information of the blank resource to a mobile terminal device through the use of a number scheme of CSI-RS location indexes indicating arrangement positions of the CSI-RSs arranged in the CSI-RS resources.

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