Routing method, routing system, mobile node, home agent, and home base station

摘要

Disclosed in a technique for registering, with a home agent, a routing rule for specifying packets destined to a second address generated from a home prefix as well as a home address and/or flow destination interfaces without increasing the number of messages. According to this technique, when a UE 10 is communicating (flow 1 and flow 2) with a CN 17 using the HoA, a routing rule indicating, for example, that flow 1 of packets destined to a HNP address is forwarded to a 3GPP interface IF1 and flow 2 of packets destined to the HNP address is forwarded to a WLAN interface IF2 is registered with a P-GW 13 through a routing rule registration message 21 such as a BU message at the time of starting simultaneous connections of the interfaces IF1 and IF2.

主权项

1. A routing method comprising:
a step of providing a mobile node, wherein the mobile node is capable of simultaneously establishing connections to first and second networks through at least first and second interfaces; a step of providing a home address generated from a home network prefix for the first network and a second address generated from the home network prefix for the second network; a step, by the mobile node, at a time of starting simultaneous connections to the first and second networks, of generating a routing rule for specifying a forwarding destination interface of athe packet destined for the second address when the mobile node is connected to the first and second networks at the same time through the respective first and second interfaces, the mobile node registering the generated routing rule with a home agent for the mobile node; and a step, by the home agent, of forwarding the packet originally destined for the second address and/or a flow of the packets to the forwarding destination interface based on the routing rule generated by the mobile node.