اطلاعات فنی شبکه
11 نوامبر 2009
Network architecture
Spacecraft architecture allows dynamic response to traffic requirements to avoid congestion in
hot spot areas. 20% of power can be allocated into a single spot beam.
Network architecture
Spacecraft architecture allows dynamic response to traffic requirements to avoid congestion in hot spot areas. 20% of power can be allocated into a single spot beam.
Spacecraft Architecture
- Designed to operate for a minimum of 12 years up to 17 years.
- Has the capability to dynamically distribute the RF power uniformly and nonuniformly over the coverage area to cope with the traffic demand.
Onboard DSP is capable of:
- providing up to 25,120 simultaneous equivalent voice channels Spacecraft Architecture Thuraya Satellite Page 4 Thuraya Telecommunications Company
- processing 640 subbands (156.25KHZ), each contains 5 FDM carriers with spacing of 31.25kHZ
- reconfiguring the number of beams, beam sizes and beam location in orbit
- dynamically assigning different subbands with different power level to different beams to cope with the traffic demand
- forming more than 500 beams in orbit at any time during the satellite life
- reconfiguring the beam size and location in orbit
- reusing the spectrum more than 30 times over the entire coverage area
- connecting two Thuraya users in a single hop call
Frequencies:
Mobile Links
Earth-to-space: ۱۶۲۶٫۵-۱۶۶۰٫۵ MHz
Space-to-Earth: ۱۵۲۵٫۰-۱۵۵۹٫۰ MHz
Feeder Links
Earth-to-space: ۶۴۲۵٫۰-۶۷۲۵٫۰ MHz
Space-to-Earth: ۳۴۰۰٫۰-۳۶۲۵٫۰ MHz
Thuraya Country Code: +88216
