Mobile Network
UA-eMBMS for PS-LTE
(evolved Multimedia Broadcast/Multicast Service)
3GPP is a standard technology for public safety communication networks and PS-LTE (Public Safety-LTE) technology is adopted as a standard. The National Disaster Communication Network also adopts PS-LTE technology as a standard specification. The GCSE (Group Communication Service Enabler) standard technology specified by PS-LTE defines the multicast type group communication service using the eMBMS system, in order for a large number of emergency responders on the disaster scene to smoothly establish group communication in the same cell. The Uangel eMBMS system has successfully demonstrated eMBMS-based PS-LTE on a commercial LTE network for the first time in the world, along with global communication service providers and equipment vendors.
System
| BM-SC (Broadcast/Multicast Service Centre) | Receiving group communication data from the GCS AS or GCS GW, and broadcasting it in the pertinent area and entire area. |
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| MBMS GW (MBMS Gateway) | Performing a function of transferring the BM-SC’s control signal to EPC, and propagating the broadcasting data of the BM-SC to eNB. |
| GCS GW (Group Communication Service Gateway) | A system that performs eMBMS functions separately among GCS AS functions, and enables large-scale group communication by interfacing the PTT server. |
Key features
- Complying with the latest 3GPP/ETSI/IETF specifications.
- Providing up to 1,000 sessions (channels) and 2Gbps bandwidth per one BM-SC.
- Flexible structure that supports an increase in line with the increase in the number of sessions.
- Providing the redundancy and session recovery function to cope with failure.
- Providing a group communication function in region and country.
- Supporting voice communication and video communication.
Major references
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