Space Full IP Router

Satellite Internet services are an ever growing market. These services have undergone a first direct implementation of IP through satellite consisting on encapsulation of IP traffic in RF signals sent through a satellite transparent link. In this way no processing is performed on board, pure RF signal retransmission is done achieving a very simple implementation that uses existing infrastructure in a standard independent way.

Adding an On board Processor in the satellite allows to perform Space Routing, this means that IP traffic is still encapsulated in RF signals but now the space router receives the RF signals and demodulates and decodes them to recover IP packets. IP packets recovered on board are then routed to the right spot according to final user.

TASE has implemented the IP Space Router concept in its AmerHis and RedSat systems, already operative in the Amazonas Hispasat satellites.

Figure 1

The Space Router digitises and processes directly the L band, the Space Router can divide each channel in sub-bands down to 125KHz. Incoming packets are recovered from the DVB-RCS uplink. After processing and routing, outgoing packets are inserted into a DVB-S2 downlink. This architecture is tightly linked to the standard signal waveforms programmed in their ASICs. This means that any evolution of the standard will render the Space Router obsolete. The PHASER way forward is to replace the On Board Processor (OBP) by a Microprocessor Based OBP (uPOBP) and to apply the PHASER results to digitise directly the RF signal.

Figure 2

Once achieved the transition to a PHASER enabled microprocessor based Space Router, a flexible OBP system will be feasible presenting the following features:

This implementation is extremely attractive to operators due to its flexibility in the resource allocation and its evolution and lifetime capabilities. This means that PHASER project, suitably linked with other ongoing projects, can mean a trigger point to lead the future Space Routers market from a strictly European point of view, allowing PHASER partners as well as European satellite integrators and operators to be the first ones to offer the solution that will define the IP data transmission through satellite for the next 50 years.