Invention Grant
US08855104B2 Method for switching the session control path of IP multimedia core network subsystem centralized service
有权
IP多媒体核心网子系统集中式业务会话控制路径切换方法
- Patent Title: Method for switching the session control path of IP multimedia core network subsystem centralized service
- Patent Title (中): IP多媒体核心网子系统集中式业务会话控制路径切换方法
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Application No.: US12671344Application Date: 2007-12-04
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Publication No.: US08855104B2Publication Date: 2014-10-07
- Inventor: Zhenwu Hao
- Applicant: Zhenwu Hao
- Applicant Address: CN Shenzhen, Guangdong Province
- Assignee: ZTE Corporation
- Current Assignee: ZTE Corporation
- Current Assignee Address: CN Shenzhen, Guangdong Province
- Agency: Banner & Witcoff, Ltd.
- Priority: CN200710141523 20070731
- International Application: PCT/CN2007/003440 WO 20071204
- International Announcement: WO2009/015525 WO 20090205
- Main IPC: H04L12/66
- IPC: H04L12/66 ; H04W36/00 ; H04L29/06 ; H04W28/04 ; H04W80/10 ; H04W48/08
Abstract:
A method for switching the session control path of IMS centralized services is provided. When the condition for switching the session control path is satisfied during the ICS session based on the first session control path, the following steps are performed: one party of the ICS UE and ICCF of the ICS session transmits the request of switching the session control path to the other party; the receiving party identifies the ICS session corresponding to the request, and transmits an acknowledgement response to the transmitting party; and the ICCF and ICS UE set the session control path corresponding to the identified ICS session as the second session control path and transfer the subsequent session control information associated with the ICS session via the second session control path; wherein the first or second session control path is one of the PS session control path and the CS session control path.
Public/Granted literature
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