FIELD: radio engineering, communication.
SUBSTANCE: method of determining maximum transmission power of a terminal in a mobile communication system supporting carrier aggregation includes steps of checking whether a data channel transmission occurs on each of a plurality of carriers for which Power Headrooms (PH) are reported in an extended PH Report (PHR), and determining the maximum transmission power of each carrier of the plurality of carriers in consideration of whether the data channel transmission occurs on a carrier corresponding to the data channel transmission.
EFFECT: more effective determination of maximum transmission power per carrier.
12 cl, 7 dwg
