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System and method for packet data serving node load balancing and fault tolerance

一种分组数据服务、节点的技术，应用在通信领域，能够解决不易多个备份的外部代理控制节点等问题

Inactive Publication Date: 2007-03-07
UTSTARCOM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the external agent control node provides a load balancing mechanism in the selection process of the packet data serving node, there are still many limitations to its current structure
First, current group control function selection algorithms are not easily compatible with external agent control nodes that support multiple backups

Method used

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  • System and method for packet data serving node load balancing and fault tolerance
  • System and method for packet data serving node load balancing and fault tolerance
  • System and method for packet data serving node load balancing and fault tolerance

Examples

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Embodiment Construction

[0037] FIG. 2 is a functional block diagram illustrating an embodiment of a network system 200 for selecting a foreign agent and a home agent for a mobile node in a mobile IP network, suitable for use in the present invention. It should be understood that this and other arrangements and processing methods described herein are presented for exemplary purposes only, and that other arrangements and elements (eg, interfaces, functions, or order of elements, etc.) may be used instead, and that some of these elements Can be omitted entirely. Moreover, in most of the telecommunication applications described, those skilled in the art will appreciate that many of the elements described herein are functional entities that may be implemented by separate components or combined with other components in any suitable combination or location .

[0038] As shown in Figure 2, system 200 includes a mobile node 202, a base station controller 204, a wireless node 206, access nodes 208 and 224, an...

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PUM

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Abstract

A system and methods are shown for providing packet data serving node (PDSN) load balancing and fault tolerance. One exemplary method includes providing an access node (280) with a plurality of packet data serving nodes (218A, 220) and at least one system manager (222), receiving from a radio node (206) on a first packet data serving node a registration request, determining that the first packet data serving node (218A) is unable to serve the registration request, and sending a packet data serving node selection request from the first packet serving node (218A) to the system manager (222), determining a second packet data serving node (220) to serve the registration request and providing an address of the second packet data serving node (220) to the first packet data serving node (218A), and sending a registration reply message from the first packet data serving node (218A)to the radio node (206), where the registration reply message includes the address of the second packet data serving node.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application Serial No. 10 / 170,900, filed June 13, 2002, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to communications in mobile Internet Protocol ("IP") networks. In particular, it relates to load balancing of packet data serving nodes and backup of packet data serving nodes with fault tolerance. Background technique [0004] Public packet-switched networks can be used to transfer traffic to / from mobile communication devices (mobile nodes), such as mobile hosts, or routers that switch their points of contact from one network to another. The basic structure of mobile IP data networks is known in the art and described in various publications, including the Request for Comments ("RFC") document RFC2002 (1996) (hereinafter referred to as "RFC2002"), More information on this document is available fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/24H04L12/56H04L12/66H04L29/06H04W8/12H04W48/00H04W80/04
CPCH04W48/17H04L12/5602H04W80/04H04W8/12
Inventor 阿比谢克·夏尔马迈克尔·S·博雷拉
Owner UTSTARCOM INC