| 摘要 |
A handover control device that conducts switching-over base station(s), in which a mobile station 11 1 , ..., 1N Q communicates, from one base station to another neighboring base station wherein a gateway server 30 monitors communication quality of the mobile station 11 1 , ..., 1N Q at a frequency according to a service level assigned to said mobile station 11 1 , ..., 1N Q and, if the communication quality falls below a predetermined quality, sends information on the another base station to the mobile station 11 1 , ..., 1N Q . |
