NonGSO MSSFSS Constellations and the International Regulations

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Non-GSO MSS/FSS Constellations and the
International Regulations

• Yvon Henri
• yvon.henri_at_itu.intRadiocommunication Bureau ITU

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GSO non-GSOSatellite Systems
GSO

• higher design, deployment operational
  complexity
  
• larger number of satellites

36000 km
non-GSO 500 - 10000 km

• longer time delays
• poorer coverage at higher latitudes

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Orbital Heights
Geostationary (35,860 km)
ICO (10355 km)
Skybridge (1450 km)
Teledesic (700 km)
Iridium (780 km)
Globalstar (1414 km)
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MSS Frequencies (below 1 GHz)
Worlwide allocations


MSS MSS (LMSS 2015) MSS (LMSS 2015)

• 148 - 149.9 MHz
• 149.9 - 150.05 MHz
• 399.9 - 400.05 MHz

R2 R1 R3 countries

• 454 - 456 MHz
• 459 - 460 MHz

• 137 - 138 MHz
• 400.15 - 401 MHz

Part with secondary status _
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MSS Frequencies (1-3 GHz)
Worldwide allocations

• 1626.5 - 1660.5 MHz
• 1525 - 1559 MHz

tRaditional

• 1610 - 1626.5 MHz
• 2483.5 - 2500 MHz

1980-1990MHz, 1.01.2005 in Region 2

• 1980 - 2010 MHz
• 2170 - 2200 MHz

• 2670 - 2690 MHz
• 2500 - 2520 MHz

1.1.2005 (until 2005, Art.14 MSS(-AMSS)

• 2655 - 2670 MHz
• 2520 - 2535 MHz

MSS(-AMSS)
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MSS Frequencies (1-3 GHz)
Region 2 allocations


1492 - 1525 MHz, Region 2 except USA

• 1675 - 1710 MHz
• 1492 - 1525 MHz

• 2010 - 2025 MHz
• 2160 - 2170 MHz

1.1.2002 (CAN, USA, 1.1.2000)
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Feeder link (Big-LEO)
Worldwide allocations

• 19,3 - 19,7 GHz
• 29,1 - 29,5 GHz

Ka band

• 15,43 - 15,65 GHz
• 15,43 - 15,63 GHz

Ku band
Gateway
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FSS Frequencies (Broadband LEO)

• 12,7 - 12,75 GHz (R2)
• 12,5 - 12,75 GHz (R1)

• 11,7 - 12,2 GHz (R2)
• 12,2 - 12,75 GHz (R3)
• 12,5 - 12,75 GHz (R1)

WRC-2000 (ex Res. 130)

• 12,75 - 13,25 GHz
• 13,75 - 14,5 GHz

• 10,7 - 11,7 GHz

• 12,2 - 12,7 GHz (R2)
• 11,7 - 12,2 GHz (R3)
• 11,7 - 12,5 GHz (R1)

WRC-2000 (ex Res. 538)

• 12,5 - 12,75 GHz (R3)

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FSS Frequencies (Broadband LEO)

• 19,7 -20,2 GHz

• 19,7 -20,2 GHz

WRC-2000 (ex Res. 130)

• 27,5 - 28,6 GHz
• 29,5 - 30 GHz

• 17,8 - 18,6 GHz

• 17,3 - 18,1 GHz (R1, R3)
• 17,8 - 18,1 GHz (R2)

WRC-2000 (ex Res. 538)
?
Radiocommunication Bureau
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Art. S9 (Sect.I, II)(coordination procedure)
Art. S11(Notification procedure)

Art. S21, S22(Limits)
ApS4ApS5
Procedural ApproachObjectives
Exchange of information
RES 49 RES 51 RES 533
Coordination
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No. S9.7
GSO
non-GSO
Nos. S9.12A, S9.13
No. S9.12
No. S9.14
No. S9.13
feederlinks
No. S9.14
feederlinks
servicelinks
Nos. S9.15 S9.16
Nos. S9.15 S9.16
gateway
No. S9.17A
Nos. S9.18, S9.17
gateway
Unplanned bands the RR procedures
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Coordination
non-GSO
GSO
non-GSO
GSO
GSO
non-GSO
terrest. st.
Earth stat. non-GSO
terrest. st.
Earth stat.
Earth stat.
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Coordination
Coordination(thresholds)
No Coordination(limits)
GSO, non GSO
GSO - non GSO
GSO, non GSO -Terrestrial
GSO, non GSO -Terrestrial
jj
MSS Feeder links, FSS non-GSO
MSS below 3 GHz
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Coordination (Space/Terrestrial)
Between 1 and 3 GHz
simple method FDP (simple definition of MSS
system, reference FS stations) or
p.f.d. trigger value
2 methods
more detailed method System Specific
Methodology
(SSM)
(Rec. ITU-R M.1143)
Appendix S5, Annex 1
(simulation software)
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Coordination (Space/Terrestrial)
Between 1 and 3 GHz
FDP (Fractional Degradation in Performance)
FDP max (FDP Az ) FDPAz
max
Ii fi
Nt
Ii min
Ii interference noise power level (W)
fi the fractional period of time during which
the


interference power equals Ii
Nt Station receiving noise power level
(W) (Nt kTB)
?
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Epfd (equivalent power flux-density in dB(W/m
2) in the reference bandwidth
EPFD?
EPFD ?
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(No Transcript)
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Satellite Licensing
Resolution 25 (WRC-95)Operation of Global
Satellite Systems for Personal Communications

• Authorization of operation of terminals

• Facilitation of service licensing

• Consideration of loss of revenue

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World Telecommunication Policy Forum(Geneva, 21
- 23 October 1996)

• Opinion 2 The Shared Vision and
• Principles for GMPCS

• Opinion 4 GMPCS-MoU

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Resolution 70 (WARC-92)Establishment of
Standards for the Operation of Low Orbit
Satellite Systems
Equitable access to Satellite-IMT
Standards have to ensure equitable and
standard conditions of access for all countries