| 摘要 |
The invention relates to a method for performing a handover procedure at a target base station in a mobile communication system, the method comprising:
receiving (S621), at the target base station from a serving base station, a first message after a handover decision is made by the serving base station, wherein the first message requests the target base station to prepare a handover of a user equipment (UE); allocating (S640), at the target base station, required resources for the UE according to the first message; transmitting (S650), at the target base station, to the serving base station, a second message as an acknowledgement (ACK) in response to the first message, the second message including resource allocation information; performing synchronization with the user equipment based on the resource allocation information included in the second message; receiving (S720), at the target base station from the UE, a third message after synchronization between the target base station and the user equipment, wherein the third message confirms the handover;
transmitting (S730), at the target base station, a fourth message informing success of the handover to the serving base station, wherein the performing synchronization with the user equipment comprises: providing, at the target base station, a time adjustment value for uplink synchronization to the UE. |
