Patent ID: 8121094

Claim:
A method for managing a cross-layer handover in a user equipment, the method comprising the steps of: managing a predetermined number of neighbor cells as a handover candidate set based on signal strength and route estimation; transmitting a Measurement Report message having the handover candidate set information to a source base station according to a reporting event; and performing a handover according to a Handover Command message received from the source base station; wherein the step of performing the handover includes the steps of: stopping Automatic Repeat request (ARQ) timers temporarily and performing synchronization with a target base station, upon receipt of the Handover Command message from the source base station; restarting the stopped ARQ timers and directly transmitting an uplink packet to the target base station without using a handover confirm message, upon completion of the synchronization with the target base station; and receiving a response message for the uplink packet and a buffered downlink packet from the target base station.