Power-limit reporting in a communication system using carrier aggregation

A base station (eNodeB) configured to schedule a user equipment (UE) in a wireless communication system using component carrier aggregation, in which two or more component carriers (CCs) are aggregated, wherein the eNodeB comprises

• a receiver that receives a power status report from the UE;
• and
• a scheduler that schedules the UE based on the received power status report,
• wherein the power status report includes:
• (i) a CC specific maximum transmission power, PCMAX,c, which is obtained by considering a CC specific amount of power reduction from a higher bound of UE maximum transmit power, PCMAX—H, for each configured and activated uplink CC, and (ii) a power headroom report indicative of a difference between the CC specific maximum transmission power, PCMAX,c, and an estimated UE transmit power, per each configured and activated uplink CC,
• wherein the CC specific maximum transmission power, PCMAX,c, for each configured and activated CC is included in the power status report when a resource is assigned for the configured and activated uplink CC for the UE, and
• wherein the power status report further includes indicators that indicate the presence of the CC specific maximum transmission power, PCMAX,c, for the corresponding power headroom report, respectively.