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Method, device and system for recovering data after restarting of device

A recovery method and restart technology, applied in the communication field, can solve problems affecting user experience and service unusable, and achieve the effect of reducing air interface signaling, reducing signaling load, and avoiding the attachment process

Active Publication Date: 2011-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, since the GGSN deletes all PDP contexts of the UE, the UE needs to re-initiate the establishment of the UE context, which will cause the original Internet protocol (IP, International Protocol) used by the UE to If the address changes, the original service used by the UE cannot continue to be used, and the service used by the UE will be interrupted, which will affect the user experience

Method used

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  • Method, device and system for recovering data after restarting of device
  • Method, device and system for recovering data after restarting of device
  • Method, device and system for recovering data after restarting of device

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Embodiment Construction

[0047] Embodiments of the present invention provide a data recovery method, device, and system after a device is restarted. When the first network mobility management network element is restarted, the second network mobility management network element determines and the first network mobility management network element related UE, and send the context information of the UE to the mobility management network element of the first network through a message; the mobility management network element of the first network restores the context of the UE according to the context information. After context recovery, when the subsequent UE initiates a location update procedure, it will accept the UE's location update request, preventing the UE from re-initiating the attach procedure, thereby reducing air interface signaling and signaling load on the air interface.

[0048] It can be understood that the mobility management network element of the first network and the mobility management net...

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Abstract

The embodiment of the invention discloses a method, a device and a system for recovering data after restarting of a device. The method of the embodiment of the invention comprises the following steps: detecting the restarting of a first network mobility management network element, determining user equipment (UE) related with the first network mobility management network element, sending information which is carried with context information of the UE to the first network mobility management network element by a second mobility management network element, and recovering the context of the UE bythe first network mobility management network element according to the acquired context information. Because the context of the UE in the device is recovered after the device is restarted, SGSN can receive a position updating request of the UE when the subsequent UE initiates position updating flow, and avoids the UE initiating attachment flow again; therefore, idle signaling can be reduced, and idle signaling load can be reduced.

Description

technical field [0001] The invention relates to the technical field of communication, and in particular to a data recovery method, device and system after a device is restarted. Background technique [0002] In an existing General Packet Radio Service / Universal Mobile Telecommunications System (GPRS / UMTS, General Packet Radio Service / Universal Mobile Telecommunications System) system, a Packet Switched Domain (PS, Packet Switched Domain) includes a Serving General Packet Radio Service Support Node (SGSN, Serving GPRS Supporting Node) and Gateway General Packet Radio Service Supporting Node (GGSN, Gateway GPRS Supporting Node), etc. Among them, the core function of SGSN is to realize functions such as route forwarding, mobility management, session management and user information storage. The GGSN is mainly used to interface with the external network, and is also used to realize the transmission of user plane data. [0003] In the prior art, when the SGSN fails and restarts,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/02H04W88/18
Inventor 吴问付
Owner HUAWEI TECH CO LTD
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