Enensys SmartGate Scheduler
The Enensys SmartGate Scheduler, is a virtualized Broadcast Gateway. The Scheduler is an essential component of the ATSC 3.0 broadcast delivery chain.
Multicast ROUTE/MMTP output from the broadcast stream generator, such as S&T's ATCaster is passed to the Scheduler so that suitable processing can be performed prior to delivery to the ATSC 3.0 exciter via the STLTP (Studio to Transmitter Link Transfer Protocol).
Such processing includes generation of ATSC 3.0 Link-Layer Protocol (ALP) packets for transmission in the defined Physical Layer Pipes (PLPs).
The Scheduler is used to set all the modulation parameters for each PLP being broadcast.
SmartGate is typically configured with three network interfaces. The first for adminsitration (access to the UI is via a web browser). The second and third interfaces are used for UDP multicast data in (ATCaster) and multicast out (STLTP) respectively.
Product Overview
The SmartGate scheduler includes the following capabilities:
- IP encapsulation into ALP packets.
- ALP encapsulation into Baseband Frames.
- LMT generation and LLS table insertion.
- IP header compression.
- Subframe creation and PLP allocation (up to a total of 8 PLPs).
- Multiple LLS management.
- STL generation and delivery.
- Validation of ATSC 3.0 modulation parameters.
- ATSC 3.0 SFN (Single Frequency Network) Adaption.
- Output monitoring.
- Synchronization via PTP or NTP.