Base station apparatus and communication control method

A communication control method employed in a base station apparatus capable of communicating with a plurality of user equipment terminals using a shared channel, the method comprising:

• a first selection step of selecting user equipment terminals to which radio resources are allocated based on priority levels indicating a priority order of allocating the radio resources for the shared channel;
• a determination step of determining a transmission power of a control channel and resources for the control channel, the control channel indicating communications of the shared channel to the selected user equipment terminals;
• a second selection step of selecting user equipment terminals to which the radio resources are allocated based on the priority levels indicating the priority order of allocating the radio resources;
• and
• a transmission power control step of controlling a transmission power of the control channel to the selected user equipment terminals, wherein
• in the determination step, when a sum of the transmission power of the control channel related to the selected user equipment terminals exceeds a predetermined first threshold value or when a sum of control resources for the control channel related to the selected user equipment terminals exceeds a predetermined second threshold value, the control channel is transmitted to some user equipment terminals among the selected user equipment terminals.