发明名称 Low latency mobile initiated tunneling handoff
摘要 The present invention provides a tunnel-based IP handoff process that can minimize the handoff latency associated with the standard Mobile IP registration. In the present invention, when neighboring nodes are detected, these detected nodes are identified as candidate nodes. Detection of just the existence of neighboring nodes should be possible even in situations where these neighboring nodes use different access technologies. For instance, pilot beacon signals may be taken as indication of the existence of candidate nodes although it may be impossible to compare them quantitatively if the beacon signals emanate from different access technologies. As soon as candidate nodes are identified, tunnels are established between the source node and the candidate nodes. The tunnels are used to forward data to the mobile node after a communication link between the mobile node and the source node goes down. As soon as the mobile node enters one of the neighboring networks and identifies a target node, the tunnels are torn down except the tunnel for the target node.
申请公布号 US2003125027(A1) 申请公布日期 2003.07.03
申请号 US20020185344 申请日期 2002.06.28
申请人 DOCOMO COMMUNICATIONS LABORATORIES USA INC. 发明人 GWON YOUNGJUNE;FUNATO DAICHI;FU GUANGRUI;TAKESHITA ATSUSHI
分类号 H04L12/56;H04L29/06;H04W36/00;H04W36/08;H04W36/38;H04W80/04;(IPC1-7):H04Q7/20 主分类号 H04L12/56
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