| 摘要 |
A method for transmitting Acknowledgement/Non-Acknowledgement (ACK/NACK) signals by a User Equipment (UE) in a wireless communication system using Carrier Aggregation (CA) is provided. The method includes receiving, from a base station, information on a Primary Cell (Pcell) and a Secondary Cell (Scell), determining a timing position for transmitting the ACK/NACK signals based on the received information, and transmitting, to the base station, the ACK/NACK signals in the determined timing position. |
