| 摘要 |
PROBLEM TO BE SOLVED: To provide a terminal device for controlling uplink signal transmission power, and a method therefor.SOLUTION: Disclosed are a terminal device for controlling uplink transmission power, and a method therefor. A method for controlling uplink transmission power of a terminal that communicates with cells of each timing alignment (TA) group when a plurality of TA groups including one or more cells exist in a wireless communication system comprises: determining the uplink transmission power for at least one channel when at least two channels from among a PUCCH, a PUSCH including plural pieces of UCI, a PUSCH including no UCI, a PRACH and an SRS are simultaneously transmitted in the same subframe in each specific cell of the plurality of TA groups; and transmitting the at least one channel with the determined uplink transmission power. The uplink transmission power is determined in consideration of a TA group index. |
