发明名称 |
Method and system for supporting internet protocol mobility of a mobile node in a mobile communication system |
摘要 |
A method and system for supporting Internet Protocol (IP) mobility of a Mobile Node (MN) in a mobile communication system. In the mobile communication system supporting Mobile IP (MIP) and Session Initiation Protocol (SIP), MIP location registration is performed in a Home Agent (HA) through a first FA (Foreign Agent) of a first foreign network in which the MN is located. When the MN receives a SIP invite message from a Correspondent Node (CN), it sends, to the CN, a SIP response OK message in which a home address of the MN is recorded. The CN sends a packet to the home address of the MN in a state in which a SIP call of the MN is established. The number of signaling messages and a delay time associated with a handover can be reduced, because the CN sends packets only to the home address of the MN regardless of a changed location of the MN.
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申请公布号 |
US2005117556(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20040983244 |
申请日期 |
2004.11.08 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE SUNG-WON;CHO DONG-HO;LEE SUN-HO;SONG JEE-YOUNG;LEE HYE-JEONG |
分类号 |
H04L12/28;H04L12/56;H04L29/06;H04W36/00;H04W60/00;H04W80/04;H04W80/10;(IPC1-7):H04Q7/24 |
主分类号 |
H04L12/28 |
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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