Method, apparatus, and system for disaster recovery of IMS
First Claim
1. An IP Multimedia Subsystem (IMS), comprising:
- a Call Session Control Function (CSCF), with the CSCF being configured to;
obtain information of registered IMS Private User Identities (IMPIs) that are associated with an IMS Public User Identity (IMPU) in an IMS subscription transmitted by a network storage device;
determine at least one IMPI that was received from the network storage device is not registered in the CSCF;
request user service configuration data of the IMPU and user backup data of IMPIs associated with the IMPU from the network storage device, based upon the determining; and
receive the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU in a response returned by the network storage device, 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; and
the network storage device, with the network storage device being configured to;
send the information of registered IMPIs that are associated with the IMPU to the CSCF;
receive 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; and
send the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU to the CSCF.
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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.
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Citations
5 Claims
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1. An IP Multimedia Subsystem (IMS), comprising:
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a Call Session Control Function (CSCF), with the CSCF being configured to; obtain information of registered IMS Private User Identities (IMPIs) that are associated with an IMS Public User Identity (IMPU) in an IMS subscription transmitted by a network storage device; determine at least one IMPI that was received from the network storage device is not registered in the CSCF; request user service configuration data of the IMPU and user backup data of IMPIs associated with the IMPU from the network storage device, based upon the determining; and receive the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU in a response returned by the network storage device, 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; and the network storage device, with the network storage device being configured to; send the information of registered IMPIs that are associated with the IMPU to the CSCF; receive 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; and send the user service configuration data of the IMPU and the user backup data of the IMPIs associated with the IMPU to the CSCF. - View Dependent Claims (2, 3, 4, 5)
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Specification