Invention Grant
US08989178B2 System and method for indicating circuit switched access at IMS registration
有权
用于在IMS注册时指示电路交换接入的系统和方法
- Patent Title: System and method for indicating circuit switched access at IMS registration
- Patent Title (中): 用于在IMS注册时指示电路交换接入的系统和方法
-
Application No.: US13684961Application Date: 2012-11-26
-
Publication No.: US08989178B2Publication Date: 2015-03-24
- Inventor: Kazuhiko Nakada , Ralf Keller , George Foti
- Applicant: Telefonaktiebolaget L M Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Main IPC: H04L12/66
- IPC: H04L12/66 ; H04L29/06 ; H04L29/08
Abstract:
In IP Multimedia Subsystem (IMS) IMS Control Channel Protocol (ICCP) is used between a user equipment (UE) and IMS Control Channel Function (ICCF) and Session Initiated Protocol (SIP) interface (between to ICCF, Call Session Control Function and Application Server) to support the indication of Circuit Switched (CS) access in header information. The indication can be used by an S-CSCF or AS for different purposes such as routing decision, charging, and presence info.
Public/Granted literature
- US20130077620A1 SYSTEM AND METHOD FOR INDICATING CIRCUIT SWITCHED ACCESS AT IMS REGISTRATION Public/Granted day:2013-03-28
Information query
