BASE STATION DEVICE, MOBILE TERMINAL DEVICE AND COMMUNICATION CONTROL METHOD

摘要

The disclosed base station device, mobile terminal device and communication control method makes possible the partial suppression of interference from a macro-cell base station device to a picocell control channel and the allocation of user data to different sub-frames using a control channel that suppresses said interference. The disclosed base station device shares at least part of the frequency band with a macro-cell (C2) containing first system, covers a picocell (C1) and is arranged in a second system that has system bandwidth formed from multiple component carriers. A carrier indicator is generated that, apart from indicating other component carriers wherein user data is allocated to different component carriers over a component carrier control channel, indicates other sub-frames wherein user data is allocated to different sub-frames through the downlink control channel.