| 摘要 |
<p>A storing device (101, 242, 342, 441, 541, 641, 742) stores a list (103,252, 352, 451, 551, 651, 752) composed of a plurality of pieces of identification information corresponding to a plurality of access service networks (32, 33). A controlling device (102, 212, 312, 412, 511, 611, 712) starts a relocation process for changing an access service network connected to a connectivity service network (42) to an access service network at a relocation destination if target information, which is specified by a handover request accompanying the shift of a mobile station and which indicates the access service network at the relocation destination, is not included in the list.</p> |
