MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD

摘要

A mobile station (MS) communicates with a base station (BS) by a carrier aggregation using a plurality of downlink component carriers (DCCs). The MS receives on one or more activated DCCs. The MS receives using a PDCCH on one of activated DCCs, from the BS, first information including an information field for requesting a transmission of channel state information (CSI), the first information being used for scheduling of a PUSCH. The MS transmits using the PUSCH in a first subframe on an uplink component carrier, to the BS, first CSI for more than one activated DCCs. The MS transmits using the PUSCH in a second subframe on the uplink component carrier, to the BS, second CSI for only one activated downlink component carrier. The transmission of the second CSI is scheduled by the first information received using the PDCCH on the only one activated downlink component carrier.

主权项

1. A mobile station apparatus configured to communicate with a base station apparatus by a carrier aggregation using a plurality of downlink component carriers, the mobile station apparatus comprising:
receiving circuitry configured to receive on one or more activated downlink component carriers, wherein the receiving circuitry is configured to receive using a physical downlink control channel on one of the one or more activated downlink component carriers, from the base station apparatus, first information including an information field for requesting a transmission of channel state information, the first information being used for scheduling of a physical uplink shared channel; and transmitting circuitry configured to transmit using the physical uplink shared channel in a first subframe on an uplink component carrier, to the base station apparatus, first channel state information for more than one activated downlink component carriers, wherein the transmitting circuitry is configured to transmit using the physical uplink shared channel in a second subframe on the uplink component carrier, to the base station apparatus, second channel state information for only one activated downlink component carrier, and the transmission of the second channel state information is scheduled by the first information received using the physical downlink control channel on the only one activated downlink component carrier.