SERVICE CONTROL METHOD, MOBILITY MANAGEMENT ENTITY, AND MOBILE SWITCHING CENTER

摘要

Embodiments of the present invention provide a service control method, a mobility management entity, and a mobile switching center, and the method includes: determining one or more user equipments; in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, and when a registration request message or a combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments; or in a scenario of solicited circuit switched fallback (CSFB) offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, so that a user equipment can communicate via a CS domain rather than suffering a voice call failure.

主权项

1. A service control method for use by a mobility management entity (MME) of a mobile network supporting Internet Protocol (IP) multimedia subsystem (IMS) voice over packet-switched (PS) session (IMS Voice Over PS session), the method comprising:
determining one or more user equipments; in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, so as to trigger the one or more user equipments to send a registration request message or a combined registration request message to the MME, and when the registration request message or the combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration message indicates to the one or more user equipments that voice over Internet Protocol IP multimedia subsystem IMS (VoIMS) is unavailable; or in a scenario of solicited circuit switched fallback CSFB offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration accept message indicates to the one or more user equipments that VoIMS is unavailable.