| 摘要 |
The present invention relates to a wireless communication system and UE providing wireless communication services, and a method of effectively performing a handover procedure in an evolved Universal Mobile Telecommunications System (UMTS) that has evolved from a Universal Mobile Telecommunications System (UMTS), a Long Term Evolution (LTE) system, or a LTE-A (LTE-Advanced) system and it may be an object of the present invention to perform the handover procedure without terminating a data transmission between a terminal and a base station by utilizing carrier aggregation scheme, which allows a high-speed data transmission by using a plurality of frequencies. |
