Method, apparatus, and system for disaster recovery of IMS
First Claim
1. A method for disaster recovery, comprising:
- obtaining, when a redundant Call Session Control Function (CSCF) is triggered, by the redundant CSCF, user backup data of registered IP Multimedia Subsystem (IMS) Private User Identities (IMPIs) that are associated with IMS Public User Identities (IMPUs) and user service configuration data of the IMPUs in an IMS subscription from a network storage device of a user, wherein the step of obtaining comprises;
obtaining, by the redundant CSCF, information of the registered IMPIs that are associated with the IMPUs in the IMS subscription transmitted by the network storage device of the user;
determining, by the redundant CSCF, an IMPU to be recovered according to the obtained information of the registered IMPIs, and requesting the network storage device of the user to recover user service configuration data of the IMPU and user backup data of a registered IMPI directly associated with the IMPU; and
receiving, by the redundant CSCF, the user service configuration data of the IMPU and the user backup data of the registered IMPI directly associated with the IMPU carried in a response returned by the network storage device of the user; and
performing, 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.
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Accused Products
Abstract
A method, apparatus, and system for disaster recovery of an IP Multimedia Subsystem (IMS) are provided. 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. With the present invention, 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.
7 Citations
24 Claims
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1. A method for disaster recovery, comprising:
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obtaining, when a redundant Call Session Control Function (CSCF) is triggered, by the redundant CSCF, user backup data of registered IP Multimedia Subsystem (IMS) Private User Identities (IMPIs) that are associated with IMS Public User Identities (IMPUs) and user service configuration data of the IMPUs in an IMS subscription from a network storage device of a user, wherein the step of obtaining comprises; obtaining, by the redundant CSCF, information of the registered IMPIs that are associated with the IMPUs in the IMS subscription transmitted by the network storage device of the user; determining, by the redundant CSCF, an IMPU to be recovered according to the obtained information of the registered IMPIs, and requesting the network storage device of the user to recover user service configuration data of the IMPU and user backup data of a registered IMPI directly associated with the IMPU; and receiving, by the redundant CSCF, the user service configuration data of the IMPU and the user backup data of the registered IMPI directly associated with the IMPU carried in a response returned by the network storage device of the user; and performing, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A Call Session Control Function (CSCF), which is a network node, comprising:
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a disaster recovery data obtaining unit, configured to obtain user backup data of registered IP Multimedia Subsystem (IMS) Private User Identities (IMPIs) that are associated with IMS Public User Identities (IMPUs) and user service configuration data of the IMPUs in an IMS subscription from a network storage device of a user wherein the disaster recovery data obtaining unit comprises; a parsing unit, configured to parse information of the registered IMPIs that are associated with the IMPUs in the IMS subscription transmitted by the network storage device of the user; a judging unit, configured to determine an IMPU to be recovered according to the parsed information of the registered IMPIs; a requesting unit, configured to request the network storage device of the user to recover user backup data of a registered IMPI directly associated with the IMPU to be recovered, which is determined by the judging unit, and user service configuration data of the IMPU; and a receiving unit, configured to receive the user backup data of the registered IMPI directly associated with the IMPU and the user service configuration data of the IMPU carried in a response returned by the network storage device of the user; and a disaster recovery processing unit, configured to perform a corresponding service according to the user backup data of the registered IMPIs and the user service configuration data of the IMPUs in the IMS subscription that are obtained by the disaster recovery data obtaining unit. - View Dependent Claims (18, 19)
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20. A network storage device, comprising:
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a user data storing unit, configured to store user service configuration data, user backup data for recovering user services, and information of a Call Session Control Function (CSCF) where a user is registered; a disaster recovery data transmitting unit, configured to transmit the user backup data to a CSCF; a judging unit, configured to judge whether to perform disaster recovery for a CSCF, wherein the judging unit comprises; a detecting unit, configured to detect whether a CSCF where the user is registered changes and whether the network storage device of the user receives a Registration Termination Answer (RTA) message returned by the CSCF after sending a Registration Termination Request (RTR) message to the original CSCF where the user is registered; and a determining unit, configured to determine that disaster recovery needs to be performed for the CSCF if a detection result of the detecting unit shows that the CSCF where the user is registered changes and the network storage device of the user does not receive an RTA message returned by the CSCF; a message encapsulating unit, configured to encapsulate a response that carries information of one of registered IP Multimedia Subsystem (IMS) Private User Identities (IMPIs) and IMS Public User Identities (IMPUs); and a message sending unit, configured to send the response that carries the information of one of the registered IMPIs and IMPUs to the CSCF. - View Dependent Claims (21)
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22. A network storage device, comprising:
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a user data storing unit, configured to store user service configuration data, user backup data for recovering user services, and information of a Call Session Control Function (CSCF) where a user is registered; and a disaster recovery processing unit, which comprises; a judging unit, configured to judge whether to perform disaster recovery for a CSCF, wherein the judging unit comprises; a detecting unit, configured to detect whether a CSCF where the user is registered changes and whether the network storage device of the user receives a Registration Termination Answer (RTA) message returned by the CSCF after sending a Registration Termination Request (RTR) message to the original CSCF where the user is registered; and a determining unit, configured to determine that disaster recovery needs to be performed for the CSCF if a detection result of the detecting unit shows that the CSCF where the user is registered changes and the network storage device of the user does not receive an RTA message returned by the CSCF; and a data transmitting unit, configured to transmit user backup data of registered IP Multimedia Subsystem (IMS) Private User Identities (IMPIs) that are associated with the user and user service configuration data of IMS Public User Identities (IMPUs) in an IMS subscription to a redundant CSCF by interacting with the redundant CSCF at least once if a judgment result of the judging unit is to perform disaster recovery for the CSCF. - View Dependent Claims (23, 24)
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Specification