Patent ID: 9113468
Filing Date: 2015-08-18
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A radio communication system having a radio base station apparatus and a mobile terminal apparatus, of which a frequency band allocated to radio communication between the radio base station apparatus and the mobile terminal apparatus is configured by adding or deleting fundamental frequency blocks, wherein FDD-based radio communication is as shed to a first fundamental frequency block, TDD-based or half duplex FDD-based radio communication is applied to a second fundamental frequency block that is different in frequency from the first fundamental frequency block, carrier aggregation is performed by configuring the frequency band with a plurality of fundamental frequency blocks having at least the first fundamental frequency block and the second fundamental frequency block, the mobile terminal apparatus allocates first uplink L1/L2 control signals corresponding to the first fundamental frequency block and second uplink L1/L2 control signals corresponding to the second fundamental frequency block to PUCCHs set in uplink radio resources in the first fundamental frequency block, the mobile terminal apparatus allocates, to the PUCCHs, the first uplink L1/L2 control signals and the second uplink L1/L2 control signals in a first subframe, and the first uplink L1/L2 control signals and not the second uplink L1/L2 control signals in a second subframe, based on a predetermined subframe of the second fundamental frequency block, and the mobile terminal apparatus uses different PUCCH formats in the first subframe and the second subframe.