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Methods and systems for mobile ip route optimization

A routing and mobile node technology, applied in the field of communication, can solve problems affecting MN power consumption, delay, data packet loss, etc.

Inactive Publication Date: 2012-05-23
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] It is clear from the above that exchanging eight signaling messages whenever the MN and CN enter RO mode can result in significant data packet loss and / or delay
Another disadvantage is that the MN has to repeat the RR process every 420 seconds due to security issues
Furthermore, if the MN has multiple sessions with different CNs, it has to repeat the RR for each CN, which in turn affects the power consumption of the MN heavily

Method used

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  • Methods and systems for mobile ip route optimization
  • Methods and systems for mobile ip route optimization
  • Methods and systems for mobile ip route optimization

Examples

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Embodiment Construction

[0037] Now refer to figure 1 , figure 1 A communication system 100 is shown. System 100 includes a mobile node (MN) 102 , a home network 110 (also referred to as a "home link"), a home agent 104 and a foreign network (also referred to as a "foreign link") 112 . To illustrate various embodiments of the present invention, it will be assumed that the MN 102 has established a session (eg, a TCP session or other session) with the corresponding node (CN) 106 . It will also be assumed that, as figure 2 As shown, MN 102 leaves its home network 110 without ending the session established with CN 106. That is, while a session with CN 106 is ongoing, MN 102 is attached to the external network and assigned a care-of address (CoA).

[0038] As described above, when the MN 102 leaves its home, there are at least two possible modes in which the MN 102 can communicate with the CN 106: (1) bidirectional tunneling mode, and (2) RO mode. As also discussed above, there are advantages to MN 1...

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Abstract

The present application relates to network mobility (e.g., mobility in an IPv6 network). More specifically, the present application discloses systems and methods for enabling mobile nodes to switch to a routing optimization mode using a minimum of mobility messages.

Description

technical field [0001] This application claims the benefit of US Provisional Application No. 61 / 224610, filed July 10, 2009, and US Provisional Application No. 61 / 221,219, filed June 29, 2009, which are incorporated herein by reference. [0002] The present invention relates to the field of communications, and more particularly, to enhancements for mobile IP routing optimization. Background technique [0003] Request for Comments (RFC) 3775, incorporated herein by reference, specifies a protocol that allows mobile nodes to remain reachable while moving around in the IPv6 Internet. Without specific support for mobility in IPv6, packets destined for a mobile node cannot reach the node when it leaves its home link. Mobility support is particularly important because mobile computers are likely to represent at least a significant portion of the Internet's population during IPv6's lifetime. [0004] A protocol called Mobile IPv6, defined in RFC 3775, allows a mobile node to move...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/08H04W12/06
CPCH04L63/0869H04L63/164H04L63/04H04W80/04H04W8/082
Inventor W·哈达
Owner TELEFON AB LM ERICSSON (PUBL)
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