Method and system for obtaining user equipment ability by user equipment, home subscriber data server and core network element

摘要

The present invention discloses user equipment, a home subscriber data server (HSS) and a method and system for obtaining user equipment ability by a core network element. Wherein, the method for obtaining user equipment ability by the core network element includes: in and/or after the IP multimedia network subsystem (IMS) registration process, the home subscriber data server (HSS) informing the IMS network element of the ability information of user equipment (UE). The HSS is enabled to obtain the user equipment ability information in present invention, and can provide services for various operations of subscribers.

主权项

1. A method for obtaining user equipment ability by a core network element, comprising the following steps of:
a home subscriber data server (HSS) informing an IP multimedia network subsystem (IMS) network element of ability information of user equipment (UE) in an IP multimedia network subsystem (IMS) registration process; wherein the core network element comprises an Access Transfer Control Function (ATCF) in a serving network, the ability information comprises Single Radio Voice Call Continuity (SRVCC) ability information, the IMS network element sends the ability information of the UE to the ATCF in the IMS registration process, and the ATCF anchors a session of the UE when determining the UE has the SRVCC ability, the ATCF does not anchor a session of the UE when determining the UE does not have the SRVCC ability.