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

摘要

In a system where two or more bands the channel state information of which is to be measured can be configured, measurement target of the channel state or the transmission resource is flexibly configured. In a mobile communication system in which a base station apparatus and a mobile station apparatus communicate with each other using a plurality of component carriers configured by the base station apparatus, the base station apparatus transmits, to the mobile station apparatus, a downlink control information format which is used for scheduling of a physical uplink shared channel on a certain uplink component carrier and, the mobile station apparatus transmits, to the base station apparatus, the channel state information for a downlink component carrier corresponding to the certain uplink component carrier in case that downlink control information included in the downlink control information format is set to request a transmission of the channel state information.

主权项

1. A mobile station apparatus comprising:
a receiving unit configured to receive using a physical downlink control channel, downlink control information including information for requesting a transmission of channel state information; and a transmitting unit configured to transmit using a physical uplink shared channel, as a response to the downlink control information, first channel state information for an activated downlink component carrier and second channel state information to which a predetermined value is set, wherein the second channel state information to which the predetermined value is set is used for indicating a deactivated downlink component carrier.