PAGE CONTENTS
Objectives
The MiniT (Mini Terminal) aims to make a significant step in establishing satellite communication in the broadband IP world. Taking this step at this point in time means the current market requirements will be met as well as the satellite operators’ coming change in business paradigm.
| The Internet defines the reference in communication from a cost and operational point of view. The MiniT makes an important step in positioning Satcom properly in the internet world. The MiniT provides broadband satcom at a lower transmission cost with high installation and operational comfort: |
- The MiniT ODU (Outdoor Unit) consists of the planar antenna, the LNB and the interface to the Indoor unit. The design target of the ODU is a dramatic size reduction for satcom broadband receiver antennas and a simpler installation. The MiniT ODU will be developed into a production-ready prototype and integrated into the overall system.
- The MiniT IDU (InDoor Unit) includes an optimized air interface for low Eb/N0 and high interference conditions. The MiniT IDU will be developed into a production-ready prototype and integrated into the overall system. The MiniT IDU is a small sized box using state of the art DSP/FPGA technology. All the components will be integrated into a complete system and will be verified in ND SatCom’s verification office.
- The MiniT Modulator is the core component of the transmit station for MiniT services. The modulator includes paketising, coding, spreading and modulation. It defines the coder and with that the MiniT specific air interface. The hubstation is completed with the content distribution S/W, based on off the shelf products and a program guide generator. The hubstation also includes the Network and the Terminal Management System.
Challenges
Commercial requirements, user requirements and technical requirements determine the system design. Because of the specific satellite configuration – the system is designed for the use of satellites positioned in an inclined orbit – the requirements of the satellite operator play a major role in the system design. The satellite specific conditions are evaluated by a specific link budget WP.
The target of a small antenna requires a special focus on the optimisation of the air interface. On network layers the DVB standard will be used, but on physical layers a more sophisticated air interface with optimised Eb/N0 and interference suppression characteristic will be designed. The air interface will provide operation modes allowing reception of signals at very low SNIR. This also allows the use of the terminal in very critical interference scenarios. Based on the component specifications the High Level Design HLD of the MiniT terminal and the MiniT modulator are realised.
Plan
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Current Status
The Project is Completed.