BASE STATION APPARATUS AND MOBILE COMMUNICATION METHOD

摘要

When multicarrier transmission is performed, the degradation of a downlink signal is reduced. A base station device eNB according to the present invention includes a simultaneous communication instruction unit 14 configured to instruct the user equipment UE to perform simultaneous communication using the plurality of carriers, wherein the simultaneous communication instruction unit 14 is configured to decide whether to give an instruction to perform the simultaneous communication using the plurality of carriers based on at least one of path loss between the user equipment UE and the base station device eNB, downlink radio quality, and downlink channel state information.