Patent ID: 8213419
Filing Date: 2012-07-03
Classification: H04L,H04W

Abstract:
1. A method for interworking between a Combining CS and IMS services (CSI), capable terminal and an IP Multimedia Subsystem (IMS), terminal, comprising: receiving an IMS session request initiated by the IMS terminal to the CSI capable terminal; determining whether an IMS session represented by the IMS session request needs to be split, and splitting the IMS session when needed; and selecting a domain for bearing each of the split IMS sessions according to information on domain selection, and terminating the split IMS sessions in at least one of a Circuit Switched (CS) domain and an IMS, wherein the determining of whether the IMS session and the IMS session represented by the IMS session request is needed to be split or not comprises: if the IMS session contains a real-time media component and a non-real-time media component, determining whether the IMS session needs to be split or not according to or any combination of capability information of an access network in which the CSI capable terminal lies, registration status information of the CSI capable terminal in the CS domain, and subscription information of a subscriber of the CSI capable terminal.