US 10,321,307 B2Granted

Method, apparatus, and system for disaster recovery of IMS

AssigneeHuawei Technologies Co., Ltd.

InventorsFeng Liang, Linfei Shen, Shufeng Shi

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Abstract

A method, apparatus, and system for disaster recovery of an Internet Protocol (IP) Multimedia Subsystem (IMS), where the method includes triggering a redundant Call Session Control Function (CSCF), obtaining, by the redundant CSCF, user backup data of registered IMS Private User Identities (IMPIs) that are associated with IMPUs and user service configuration data of IMS Public User Identities (IMPUs) in an IMS subscription from a network storage entity of a user; and recovering, by the redundant CSCF, a corresponding service according to the obtained user backup data of the registered IMPIs and user service configuration data of the IMPUs in the IMS subscription. Hence, the one-IMPU multi-IMPI, one-IMPI multi-IMPU, or multi-IMPI multi-IMPU service can be recovered, and this enables the user to have better service continuity experiences.

Claims14

Dependent claims

A method for disaster recovery, comprising:

sending, by a network storage entity, information of registered Internet Protocol (IP) Multimedia Subsystem (IMS) Private User Identities (IMPIs) that are associated with an IMS Public User Identity (IMPU) in an IMS subscription to a Call Session Control Function (CSCF);
obtaining, by the CSCF, the information of registered IMPIs that are associated with the IMPU;
requesting, by the CSCF, user service configuration data of the IMPU and user backup data of IMPIs associated with the IMPU from the network storage entity when at least one IMPI received from the network storage entity is not registered in the CSCF;
receiving, by the network storage entity, a request for the user service configuration data of the IMPU and the user backup data of IMPIs associated with the IMPU from the S-CSCF;
sending, by the network storage entity, the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU to the CSCF;
and
receiving, by the CSCF, the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU in a response from the network storage entity, wherein the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU is used by the CSCF for recovering a corresponding service.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/830,946Filed 4 Dec 2017 · continuation
Priority: CN 2007 1 003071728 Sep 2007
Published: US 2018/0091971 A129 Mar 2018
Granted: 11 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 8/30
Network data management: network data restoration; Network data reliability; Network data fault tolerance
H04L 65/1016
Architectures or entities: iP multimedia subsystem [IMS]
H04L 67/306
Profiles: user profiles
H04L 69/40
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass: for…

Family

PCT/CN2008/072583Parent of this continuation · filed 28 Sep 2008
Application12/580,643Parent of this continuation · filed 16 Oct 2009
Application13/350,654Parent of this continuation · filed 13 Jan 2012
US 8,228,787 B2Parent of this continuation · filed 24 Jul 2012
Application15/463,483Parent of this continuation · filed 20 Mar 2017
US 9,661,028 B2Parent of this continuation · filed 23 May 2017
US 2018/0091971 A1Pre-grant publication · published 29 Mar 2018
US 9,883,380 B2Parent of this continuation
US 2010/0039930 A1Published application
US 2012/0113802 A1Published application
US 2017/0195873 A1Published application
US 10,321,307 B2This patent

From the US filing history. Foreign family members aren’t listed.

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