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Integration
Cybertel Bridge provides a comprehensive range of integration capabilities covering interfaces and systems essential to mission-critical service deployment, including interworking functions, QoS control, authentication, OSS, and multimedia delivery, ensuring seamless compatibility and network-wide interoperability.
eMBMS
eMBMS (Evolved Multimedia Broadcast Multicast Service) is a 3GPP-defined LTE technology that enables broadcast delivery of media content to multiple UEs (User Equipment) simultaneously.
In Cybertel MCX solution, eMBMS dramatically improves bandwidth efficiency and communication scalability, especially in group calls, emergency broadcasts and real-time media sharing.
Key Benefits
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Efficient Use of LTE Resources
Send high-bandwidth content (voice/video/data) to many users without duplication.
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Low-Latency Multicast Communication
Ideal for large-scale MCPTT, MCVideo and MCData sessions.
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Resilient in Emergency Situations
Reliable even when network load surges (e.g., disasters, metro systems).
Use Cases
- Emergency Group Calls (e.g., “All-Call” during disaster response)
- Rail, metro and transportation networks using Cell ID-based broadcast
- Public events with heavy radio traffic
eMBMS Architecture & Integration
The Cybertel MCX solution integrates with LTE broadcast infrastructure via 3GPP interfaces such as MB2-C (control) and MB2-U (user/media):
| Reference point | Interface | Description |
|---|---|---|
| MB2-C | MCX AS ↔ BMSC | Manages TMGI allocation, bearer control |
| MB2-U | BMSC ↔ eNB | Transmits multicast media to UEs |
- MBMS Bearer Management: MCX AS activates/deactivates broadcast channels
- TMGI Allocation: Unique ID per broadcast session
- Service Area ID (SAI) Mapping: Groups tied to specific locations
Bearer Types
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Static Bearer
- Predefined broadcast bearer
- Best for urgent calls and pre-reserved emergency sessions
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Dynamic Bearer
- Activated based on real-time need
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Methods include:
- · Group size threshold (e.g., >100 users)
- · Entry into predefined Service Area or Cell ID
- · Configured per MCX group ID
Cybertel's eMBMS Capabilities
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Integration with ENESYS Middleware
Android-based MCX clients bind to eMBMS middleware for real-time TMGI listening.
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Broadcast Media Delivery
Media is transmitted once, received by all subscribed UEs without duplication.
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Multicast Optimization
MCX AS analyses TMGI listening status to decide between unicast/multicast delivery.
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MBMS Restoration Handling
Auto-recovery when BMSC fails (based on restart counters and TCP link health checks).
Advantages for Public Safety Agencies
| Feature | Benefit |
|---|---|
| Bandwidth Efficiency | Serve thousands of users with one stream |
| Dynamic Group Management | Flexibly switch delivery mode |
| Cell ID–based Activation | Ideal for metro or tunnel environments |
| Emergency-Ready | Static bearer ensures reliability in crisis |
Why Choose Cybertel eMBMS?
- Proven MCX + eMBMS deployments in global refereces
- Fully 3GPP-compliant (TS 23.246, TS 29.468)
- Integration with SafeNet and public infrastructure
- Flexible bearer control and real-time TMGI monitoring
