FIELD: information technology.
SUBSTANCE: Internet protocol (IP) multimedia subsystem (IMS) client registers with an IMS network and establishes a media independent handover (MIH) session with an MIH application server using a session initiation protocol (SIP). The IMS client establishes a session for IP-based service, (e.g., voice over IP (VoIP)), with a communication peer using an SIP. MIH messages are exchanged for handover with the MIH application server over IP. After handover, the session is resumed. A serving call session control function (S-CSCF) triggers the MIH application server based on a string 'MIH services' and a unique identifier included in an INVITE request. The IMS client may send a REFER request to the MIH application server after the handover to resume the session. Alternatively, the IMS client may send a RE-INVITE request to the MIH application server and the communication peer.
EFFECT: improved handover process.
21 cl, 14 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MESSAGE HANDLING IN IP MULTIMEDIA SUBSYSTEM | 2006 |
|
RU2426262C2 |
| METHOD AND DEVICE FOR IDENTIFYING IMS SERVICE | 2005 |
|
RU2389148C2 |
| METHOD AND DEVICE OF ACCESS TO IP-MULTIMEDIA SUBSYSTEM | 2005 |
|
RU2418389C2 |
| GROUP ACCESS TO IP MULTIMEDIA SUBSYSTEM SERVICE | 2008 |
|
RU2474067C2 |
| SUPPORT OF EMERGENCY CALL VoIP | 2006 |
|
RU2391792C2 |
| VOIP EMERGENCY CALL SUPPORT | 2010 |
|
RU2491752C2 |
| PAYMENT MECHANISMS FOR IP-MULTIMEDIA SERVICES | 2004 |
|
RU2369981C2 |
| MOBILE COMMUNICATION DEVICE REGISTRATION METHOD | 2009 |
|
RU2535476C2 |
| METHOD AND APPARATUS TO SUPPORT THE IMPLEMENTATION OF CONTINUOUS IMS SERVICE | 2011 |
|
RU2584468C2 |
| METHOD FOR SWITCHING BETWEEN MBMS DOWNLOAD AND HTTP-BASED DELIVERY OF DASH FORMATTED CONTENT OVER IMS NETWORK | 2011 |
|
RU2557256C1 |
