Terminal device for transmitting a power headroom report in a multi-carrier communication system, and method for same

A user equipment (UE) for transmitting a power headroom report (PHR) in a communication system supporting a plurality of carriers, the UE comprising:

• a transmitter;
• and
• a processor configured to control the transmitter to transmit, to an eNode B (eNB), a power headroom report (PHR) related to the plurality of carriers configured for the UE,
• wherein the power headroom report (PHR) comprises a first type power headroom (PH) and a second type power headroom (PH),
• wherein, while the first type power headroom (PH) is calculated for a power headroom report (PHR) related to a primary carrier and a non-primary carrier, the second type power headroom (PH) is calculated for a power headroom report (PHR) related to only the primary carrier,
• wherein the second type power headroom (PH) is calculated for case of simultaneous transmission of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH),
• wherein the power headroom report (PHR) further comprises a carrier index indicating a carrier related to the first type power headroom (PH), and
• wherein the first type power headroom (PH) is calculated based on a maximum UE output power configured for a corresponding carrier.