IP address configuration and mobile detection method for mobile IP

A technology of IP address and duplicate detection, applied in the direction of data exchange through path configuration, network data management, digital transmission system, etc., can solve the problems of increasing switching delay, unable to completely avoid IP address configuration conflicts, etc., to improve the success rate , the effect of simplifying the delay

Active Publication Date: 2008-02-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

There are also some solutions that can optimize the configuration process of IP addresses, such as Duplicate Address Detection Using Enhanced Neighbor Discovery Optimization (END, "Duplicate Address Detection Optimization Using Enhanced Neighbor Discovery", IETF Draft ), ADAD ("Design and Evaluation of an Address Configuration and Confirmation Scheme for IPv6 Mobility Support", inProceding of WCNC 2004.1270-1275), ODAD (Optimistic Duplicate Address Detection for IPv6", IETF RFC 4429), etc., but END and ODAD cannot be completely avoided IP address configuration conflicts, and ADAD adopts the method of reserving addresses on the network side, but when applied to MIPV6 / FMIPV6, the terminal still needs to perform signaling interaction with the network device to obtain the address after switching, and the interaction time increases the switching delay

Method used

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  • IP address configuration and mobile detection method for mobile IP
  • IP address configuration and mobile detection method for mobile IP
  • IP address configuration and mobile detection method for mobile IP

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Embodiment Construction

[0043] In the present invention, the mobile terminal establishes and maintains the corresponding relationship between the IP address and the access area identifier of the network access point that the IP address can use in real time. When the mobile terminal switches, the network access point to be switched The access area identifier, according to the correspondence between the IP address and the access area identifier of the network access point that the IP address can use, select and configure an IP address that can be used directly after switching to the access point. The basic idea of ​​the present invention is that the terminal obtains multiple IP addresses in advance, and each IP address corresponds to a list of access area identifiers (L2_ID List), when the terminal is identified by the access area identifiers in this list When the access device accesses the network, the terminal can directly use the IP address corresponding to the access area identifier.

[0044] Taking th...

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Abstract

The utility model discloses an IP address configuring and mobile detecting method for the mobile IP, comprising the following steps, a piece of access equipment gets an IP prefix and a corresponding access area identification list; a terminal gets the IP prefix of each access device and the corresponding access area identification list, the terminal gets an IP address which can be used according to the IP prefix and the access area identification list; regarding to each IP prefix, terminal gets the IP address which can be used according to the IP prefixes, tests the IP address repeatedly and sets up and stores the corresponding relationship between the IP address which are repeatedly inspected and the access area identification list. The terminal is state or stateless.

Description

Technical field [0001] The present invention relates to IP address configuration and movement detection technology in IP handover of mobile IP, in particular to a method for realizing IP address configuration and movement detection in handover. Background technique [0002] With the development of wireless technology and terminal technology, mobile terminals can use multiple access technologies to access the IP network. As the mobile terminal moves, the terminal can use different access technologies to access the IP network through different network access points. The Internet Engineering Task Force (IETF) proposed the mobile IP protocol, which enables the terminal to maintain the continuity of IP-based communication services after changing the network access point due to movement. [0003] When the network access point of the mobile terminal changes, that is, when the mobile terminal switches between different network access points, in order to ensure the continuity of IP commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/12H04L12/28H04L29/06H04W8/26H04W24/02
Inventor 陈山枝艾明
Owner DATANG MOBILE COMM EQUIP CO LTD
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