Key Technology Features

  • Spot Beam Coverage: Traditional satellite technology utilizes a broad single beam to cover entire continents and regions. With the introduction of multiple narrowly focused spot beams and frequency reuse, IPSTAR is now capable of maximizing the available frequency for transmissions. Increasing bandwidth 20 times more than traditional Ku-band satellites translates into a more efficient satellite for SSA. Despite the higher costs associated with spot beam technology, the overall cost per circuit will be much lower than existing shaped beam satellites.

  • Dynamic Power Allocation: This new technology optimizes the use of power among beams and allocates a power reserve of 20% to be allocated to beams that may be affected by rain fade, thus maintaining the link. Given the vast geographical coverage of the Satellite, it is unlikely that rain would fall simultaneously across the entire region; therefore this dynamic allocation of power only to beams in need is a very effective way to increase IPSTAR System's overall high link availability and reliability.

IPSTAR Technical Information

Spacecraft Configuration Description and Approximate Capacity
Spacecraft
  • Geo-stationary satellite with Bent Pipe payload configuration (no on-board processing to avoid the obsolescence of processing technology which develops at a remarkable speed, no inter-satellite link)
  • 12 years life
  • 15 kW power
Orbital Slot
  • Located at 120° East
  • Additional satellite for co-location or different slot in the future
Total Digital Bandwidth Capacity
  • 45 Gbps of Spot Beam aggregate capacity at 75-120 cm. Dish
  • Equivalent to 1,000+ Transponders of 36 MHz of conventional coding and modulation
Ku Beams
Ka Beams
  • 84 Spot beams, 3 Shaped beams, 7 Regional Broadcast beams
  • 18 Feeder beams and Gateways
Beam Configuration Description and Approximate Capacity
Ku Spot Beams
  • For highly populated areas
  • 20+ Gbps uplink (Return Link) capacity
  • 20+ Gbps downlink (Forward Link) capacity (excluding broadcast capacity)
Ku Shaped Beams
  • For less populated areas
  • 0.5+ Gbps uplink capacity
  • 0.5+ Gbps downlink capacity
Frequency and Access Description and Approximate Capacity
Uplink (Return Link)
(A narrow band data link from a consumer Terminal to the Gateway)
  • 14.000-14.375 GHz (Spot Beam)
  • 14.375-14.500 GHz (Shaped/Spot Beam)
  • 13.775-13.975 GHz (Broadcast beam)
  • Multi-mode Multiple Access
  • Slotted AlohaTDMA Aloha Return Link – STAR (IPSTAR Proprietary)
Downlink (Forward Link)
(A wide band data link from a Gateway to the consumer Terminal)
  • 11.500– 11.700GHz (Broadcast Beam)
  • 12.200 – 12.750 GHz (Spot Beam)
  • 10.950 – 11.200 GHz (Shaped/Spot Beam)
  • Turbo product code orthogonal frequency division multiplex L-code Link – TOLL (IPSTAR Proprietary)


























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