Patent ID: 9674750
Date: 2017-06-06
CPC Classifications: H04W

Claim:
1. A method of controlling communication of a user equipment in a mobile network with a plurality of access networks, the method comprising: controlling, by a control node, access of the user equipment to that one of the access networks which is currently used by the user equipment, wherein the control node has functionality of either or both of a Mobility Management Entity (MME) and a Serving GPRS Support Node (SGSN); determining, by the control node, an access capability of the user equipment in the access network currently used by the user equipment, the access capability comprising whether an IP Multimedia Subsystem (IMS) voice over Packet Switched (PS) session is supported; and providing, by the control node, an indication of the determined access capability to a Home Subscriber Server (HSS) associated with a subscriber using the user equipment.