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Method and system for restoring subscriber contex

A user environment and environmental technology, applied in transmission systems, digital transmission systems, communication between multiple stations, etc., can solve problems such as long service downtime, achieve the effect of reducing the amount of signal transmission and service downtime

Inactive Publication Date: 2003-10-01
NOKIA NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As a result, unnecessary user environment reactivations have to take place and service downtime is longer

Method used

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  • Method and system for restoring subscriber contex
  • Method and system for restoring subscriber contex
  • Method and system for restoring subscriber contex

Examples

Experimental program
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Embodiment Construction

[0032] The following will be based on figure 2 , illustrating the recovery method according to the preferred embodiment of the present invention.

[0033] figure 2 is a message transfer and processing diagram showing message transfer and processing between network elements NE1 and NE2. If the MS activates the user environment, restart information such as the restart number (N=n) indicating the last restart is transmitted to corresponding other network elements. If a restart is performed at NE1, when a new user environment is started at NE1, its restart number is incremented by 1, and the new restart number, ie N=n+1, is transmitted to NE2.

[0034] Thus, by comparing the transmitted new number of restarts (N=n+1) with its stored previous number of restarts (N=n), NE2 can determine the new user context received after the restart of NE1. Therefore, NE2 can just delete the "old" user context received before the restart of NE1 and store the new restart number N=n+1.

[0035] T...

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Abstract

The present invention discloses a method and a system for restoring the user environment in a network element of a mobile communication network, wherein by transmitting corresponding restart information to the network element, it is indicated that after the last restart, new user surroundings. Based on the restart information, the network element continues to use the new user environment updated after the last restart and invalidates the old user environment updated before the last restart. This reduces the number of unnecessary user environment reactivations and the corresponding service downtime. In addition, the number of signal transmissions required after a restart is reduced.

Description

technical field [0001] The present invention relates to a method and system for restoring a user environment in a network element such as a GPRS Support Node (GSN) of a mobile communication system such as GPRS (General Packet Radio Service). Background technique [0002] Network elements of GPRS such as the Serving GPRS Support Node (SGSN) and the Gateway GPRS Support Node (GGSN) usually send each other Echo Request messages in order to query whether another GSN, ie SGSN or GGSN, is available. [0003] The GSN receiving the Echo Request message returns an Echo Response message containing the restart count value as a parameter. The GSN receiving the Echo Response message compares the received Restart Count value with the previous Restart Count value held with respect to the particular peer GSN. [0004] If the previously saved Restart Count value is different from the Restart Count value received in the Echo Response message, the GSN receiving the Echo Response message consi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/22H04L12/56H04B7/26H04W8/30H04W24/02
CPCH04W8/30H04W24/02
Inventor 米卡·佛瑟尔
Owner NOKIA NETWORKS OY
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