Handover control apparatus, relay router, gateway apparatus, access router base station, mobile communication system, and handover control method

摘要

A mobile communication system 100 according to the present invention comprises handover control apparatus 1 and radio terminal unit 10 . The handover control apparatus 1 controls handover of a radio terminal unit 10 between access routers 31 - 34 provided in respective base stations 21 - 24 for radio communication with the radio terminal unit 10 . The handover control apparatus 1 counts the number of relay routers for every candidate access router 32 - 34 for a destination of the radio terminal unit 10 , from a gateway device 52 and determines a COR on the basis of the number of relay routers for every access router 32, 33, 34 thus counted.