发明名称 |
METHOD AND APPARATUS FOR SUPPORTING AN EMERGENCY CALL SERVICE IN AN IP MULTIMEDIA SUBSYSTEM SESSION DURING HANDOVER |
摘要 |
A method, apparatus and computer program product are provided to facilitate the handover from a packet switched network to a circuit switched network while an Internet protocol (IP) multimedia subsystem (IMS) session is ongoing. In the context of a method, a notification is received of the handover from a packet switched network to a circuit switched network while an IMS session is ongoing. The method also receives an indication that an emergency call service is active in the IMS session and determines that media resources in the circuit switched network are required to support the emergency call service, as supplemented by a minimum set of emergency related data, that is active in the IMS session. The method may further include causing the media resources to be reserved in the circuit switched network to support the emergency call service that is active in the IMS session. |
申请公布号 |
WO2016027136(A1) |
申请公布日期 |
2016.02.25 |
申请号 |
WO2014IB64031 |
申请日期 |
2014.08.22 |
申请人 |
NOKIA TECHNOLOGIES OY;NOKIA USA INC. |
发明人 |
MUTIKAINEN, JARI KALEVI;POIKSELKÄ, MIIKKA |
分类号 |
H04W4/22;H04W36/00 |
主分类号 |
H04W4/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|