发明名称 |
COMMUNICATION SYSTEM USING MULTI-RADIO MODE, MONITOR NODE APPARATUS, CONTROL NODE APPARATUS AND BASE STATION APPARATUS |
摘要 |
<p>A communication system which includes plural radio systems, and which connects to a terminal apparatus corresponding to the plural radio systems, comprising: access points for the each radio system; gateways; an authentication apparatus; and a home agent. The authentication apparatus being shared by the plural radio systems: assigns an IP address to the terminal apparatus in a radio system which is initially connected among the plural radio systems according to an IP address assignment request from the terminal; judges whether an IP address assignment request for a radio system to be subsequently connected is from the same terminal apparatus by using an unique identifier of the terminal; and assigns the IP address assigned in the initially connected radio system to the terminal apparatus in the radio system to be subsequently connected in a case where the assignment request is determined to be from the same terminal apparatus.</p> |
申请公布号 |
EP2051452(A4) |
申请公布日期 |
2012.06.20 |
申请号 |
EP20060782742 |
申请日期 |
2006.08.09 |
申请人 |
HITACHI, LTD. |
发明人 |
HANAOKA, SEISHI;YANO, MASASHI;MATSUMOTO, NORIHISA;NAKAHARA, NARUHITO |
分类号 |
H04W12/06;H04L12/70;H04W8/18;H04W8/26;H04W16/14;H04W36/14;H04W80/04;H04W88/06 |
主分类号 |
H04W12/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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