FIELD: information technology.
SUBSTANCE: group of inventions provides continuity of IMS emergency sessions established in 4G access networks for mobility to 3G/2G access networks. Generally, a Mobility Management Entity (MME) in the packet switch (PS) domain provides a handover request to a Mobile Switching Centre (MSC) server in the circuit switch (CS) domain. The handover request includes an indication that the call is an emergency call and that a Packet Switched Network Induced Location Request (PS-NI-LR) or similar location reporting procedure is required and/or a Gateway Mobile Location Centre (GMLC) address. The MSC Server facilitates the handover to the CS domain via the Mg and/or Mw interface.
EFFECT: providing continuity of emergency sessions.
15 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PS TO CS HANDOVER INDICATOR | 2010 |
|
RU2526860C2 |
| OPTIMIZATION OF HANDOVER DELAY | 2010 |
|
RU2696338C2 |
| METHOD OF INTERNET PROTOCOLS BASED MULTIMEDIA SERVICES SUBSYSTEM COMMUNICATION SESSION SWITCHING AND EMERGENCY CALLS FORWARDING OBJECT | 2013 |
|
RU2600526C2 |
| NETWORK REGISTRATION METHOD, NETWORK SERVICE TRANSFER METHOD, NETWORK DEVICE AND TERMINAL DEVICE | 2018 |
|
RU2747372C1 |
| METHOD OF REGISTRATION IN NETWORK, METHOD FOR TRANSMITTING SERVICE IN NETWORK, NETWORK DEVICE AND TERMINAL DEVICE | 2018 |
|
RU2717839C1 |
| HANDOVER DELAY OPTIMISATION | 2010 |
|
RU2576474C2 |
| BSS-RETRIEVED INFORMATION FOR CS-PS SRVCC | 2013 |
|
RU2608594C2 |
| VOIP EMERGENCY CALL SUPPORT | 2010 |
|
RU2491752C2 |
| SUPPORT OF EMERGENCY CALL VoIP | 2006 |
|
RU2391792C2 |
| METHOD, APPARATUS AND SYSTEM FOR VOICE CALL FALLBACK TO CIRCUIT SWITCHED DOMAIN | 2013 |
|
RU2549191C2 |
