Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Disaster recovery method and system

A recovery method, P-CSCF technology, applied in the field of disaster recovery and recovery methods and systems, can solve problems such as increased resource consumption for disaster recovery and signaling storms, to avoid avalanche effects, improve reliability and real-time performance, and save The effect of resource consumption

Active Publication Date: 2019-11-29
CHINA TELECOM CORP LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] A technical problem to be solved by the embodiments of the present invention is: in the prior art, the use of PGW to perform disaster recovery and restoration of P-CSCF consumes more resources and is likely to cause signaling storms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Disaster recovery method and system
  • Disaster recovery method and system
  • Disaster recovery method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0065] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0066] At the same time, it should be understood that, for the convenience of d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a disaster tolerance recovery method and system. The method includes the following steps that: a PCRF (policy and charging rule function) unit performs heartbeat detection on a first P-CSCF (proxy-call session control function) unit which provides services currently; if the first P-CSCF unit malfunctions, the PCRF unit sends a fault indication message to a PGW (packet gateway); when services associated with the first P-CSCF unit appear, the PGW sends a bearer update request to a user terminal associated with the services; the user terminal re-registers in a second P-CSCF unit which takes over the services of the first P-CSCF unit according to the received bearer update request, so that the second P-CSCF unit can bear the services. According to the disaster tolerance recovery method and system of the invention, a heartbeat detection mechanism is not required to be additionally installed between the PGW and the P-CSCFs, the resource consumption of equipment can be saved; when the PCRF detects the failure of the P-CSCF, it is not necessary to directly notify all users to re-initiate registration for the other P-CSCF unit which takes over the services of the P-CSCF unit, instead, re-registration is triggered based on the service request of the user terminal to complete a call task, and thus, the problem of the paralysis of the equipment caused by a condition that the equipment processes a large number of re-registration signals at the same time can be avoided, and the reliability of disaster tolerance recovery can be improved.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a disaster recovery method and system. Background technique [0002] VoLTE (Voice over LTE, LTE-based voice service) is implemented through LTE and IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) networks. The LTE network provides 4G user access, and the IMS network provides 4G user voice services. The proxy call session control device (P-CSCF, Proxy-Call Session Control Function) is the entry node for 4G users to access the IMS network, the core network element of the IMS network, and the packet data gateway (PGW, PacketGateway) of the LTE network, policy and Charging control function equipment (PCRF, Policy and Charging Rules Function) connection, mainly responsible for the proxy of user VoLTE service-related signaling and messages, and transfers the SIP (Session Initiation Protocol, Session Initiation Protocol) transaction of the visited access network to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04
CPCH04W24/04
Inventor 许盛宏马泽雄王谦陈康李力卡宫云平陈庆年林俐陶启茜时新建张慧嫦何小川严宇李涛谭志远陈喜洲李程
Owner CHINA TELECOM CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com