METHOD FOR PERFORMING HANDOVER IN WIRELESS ACCESS SYSTEM SUPPORTING DOUBLE CONNECTION MODE, AND APPARATUS SUPPORTING SAME

摘要

The present invention relates to a wireless access system, and particularly, provides a method for performing seamless handover in a network system supporting a double connectivity mode, and apparatuses supporting the method. As an embodiment of the present invention, a method for supporting handover by a source cell in a wireless access system supporting a double connectivity mode may comprise the steps of: receiving a measurement report message from a user equipment; transmitting small cell maintenance request information to a target cell; and receiving small cell maintenance response information from the target cell. The double connectivity mode is a mode in which a terminal maintains simultaneous connection to the source cell and a small cell. The small cell maintenance request information is information for requesting maintenance of the double connectivity mode for the small cell in order to support the handover. The small cell maintenance response information is information for indicating whether the target cell can maintain the double connectivity mode for the small cell.