On-board processing for satellite-terrestrial integration

On-board processing for satellite-terrestrial integration

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Flexibility in satellites is one of the major requirements to make use of them in the 5G environment. A key method to achieve this goal is on-board processing. Satellites have become more and more flexible in recent days, started by the development years ago with the development of digital transparent processors to gain flexibility in frequency and channel allocation. First, this chapter gives a brief history of on-board processers (OBPs) followed by a classification of OBPs. For illustration, the current design of the Fraunhofer OBP (FOBP) is described followed by an exemplary 5G use case for OBP using low-earth orbiting (LEO) satellites. The chapter closes with a short summary.

Chapter Contents:

  • 13.1 Brief history of on-board processing
  • 13.1.1 Airbus Inmarsat processor
  • 13.1.2 Thales Alenia Space Spaceflex processor
  • 13.1.3 Thales Alenia Space Redsat
  • 13.2 Classification and applications of OBPs
  • 13.2.1 Satellite payload architectures
  • Bent-pipe
  • Digital transparent processor
  • Regenerative processor
  • 13.2.2 Digital payload technology matrix
  • 13.2.3 Advantages of reconfigurable OBPs
  • Technical flexibility
  • Flexibility in routing
  • Time-to-market reduction
  • Beamforming and phased array antenna control
  • IP-routing and inter satellite links
  • 13.3 The Fraunhofer OBP as an example
  • 13.3.1 Payload architecture
  • 13.3.2 Main building blocks
  • 13.3.3 Digital signal processing
  • 13.3.4 Virtual TM/TC
  • 13.4 Exemplary 5G use case for OBP using LEO satellites
  • 13.5 Summary
  • Acronyms
  • References

Inspec keywords: satellite communication; mobile satellite communication; channel allocation; frequency allocation; 5G mobile communication

Other keywords: Fraunhofer OBP; frequency allocation; 5G environment; OBPs; FOBP; channel allocation; LEO satellites; digital transparent processors; satellite-terrestrial integration; on-board processing; low-earth orbiting satellites; on-board processors

Subjects: Mobile radio systems; Satellite communication systems

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