HANDOVER METHOD BETWEEN SMALL BASE STATIONS CAPABLE OF REDUCING THE HANDOVER DELAY TIME DURING A HANDOVER BETWEEN THE PICO BASE STATIONS

摘要

PURPOSE: A handover method between small base stations is provided to reduce an unnecessary network load during a handover between pico base stations.;CONSTITUTION: A PeNB-GW(Pico eNB(evolved Node B)-GateWay)(205) receives a path switching request message from a target pico eNB(203). The PeNB-GW generates a response message to the path switching request message using security context information of a terminal(232). The PeNB-GW transmits the generated response message to the target pico eNB(237). The security context information of the terminal is obtained from the initial context request message received from an MME(Mobility Management Entity)(207).;COPYRIGHT KIPO 2013;[Reference numerals] (232) Generate a response message using prestored security context information of a terminal