The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2014
Filed:
Oct. 31, 2011
Jiongjiong Gu, Shenzhen, CN;
Kai Wen, Langfang, CN;
Feng Liang, Shenzhen, CN;
Linfei Shen, Shenzhen, CN;
Shufeng Shi, Xi'an, CN;
Jiongjiong Gu, Shenzhen, CN;
Kai Wen, Langfang, CN;
Feng Liang, Shenzhen, CN;
Linfei Shen, Shenzhen, CN;
Shufeng Shi, Xi'an, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for realizing an Internet protocol (IP) multimedia subsystem (IMS) disaster tolerance includes the steps as follows. An S-CSCF receives a user registration, and backs up necessary data which is required when a user service processing is restored on a storage entity in a network. An I-CSCF of user's home domain receives a service request of the user, and if it is found that the S-CSCF currently providing a service for the user fails, assigns a new S-CSCF to the user, and forwards the service request to the newly assigned S-CSCF. The newly assigned S-CSCF interrogates and acquires subscription data of the user and the necessary data backed up by the original S-CSCF from the storage entity, and then restores the user service processing according to the subscription data and the backup data. A device for realizing an IMS disaster tolerance is also provided.