| 摘要 |
A method of changing a primary component carrier (PCC) for a mobile device in a wireless communication system is disclosed. The method comprises receiving a handover command from a network of the wireless communication system to change a first uplink primary component carrier of a first plurality of uplink component carriers or a first downlink primary component carrier of a first plurality of downlink component carriers, and performing a random access channel (RACH) procedure on at least one of uplink component carriers according to the handover command. |
