HANDOVER CONTROL APPARATUS, RADIO TERMINAL DEVICE, EDGE ROUTER, ROUTER, MOBILE COMMUNICATION SYSTEM, AND HANDOVER CONTROL METHOD

摘要

A handover control apparatus includes routers (118 to 126) relaying data to a base station and hierarchically connected to the upper node of edge routers (102 to 116) provided for each base station and a gateway apparatus (130). A router (126) which is COR located nearer to a radio terminal device is specified as a relay router among the COR where all the paths reaching CN (132) as a communication partner from each of the edge router (104) as a mobile origin of the radio terminal device (100) and all the edge routers (102, 106) serving as mobile destination candidates are intersected. Thus, it is possible to easily reduce the handover processing time.