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ITU R SF 1601:2007

ITU R SF 1601:2007 Methodologies For Interference Evaluation From The Downlink Of The Fixed Service Using High Altitude Platform Stations To The Uplink Of The Fixed-satellite Service Using The Geostationary Satellites Within The Band 27.5-28.35 Ghz

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Table of Contents

Annex1-Amethodologyforinterferenceevaluationfrom
thedownlinkoftheFSusingHAPStotheuplink
oftheFSSusingGSOsatelliteswithintheband
27.5-28.35GHz
1Introduction
2Amethodologyforinterferenceevaluation
2.1InterferencefromaHAPSsystem
2.2InterferencefrommultipleHAPSsystems
2.3Downlinkpowercontrol
2.4Inputparameters
2.4.1HAPScharacteristics
2.4.2FSSinputcharacteristics
Appendix1toAnnex1-Anexampleoftheapplicationofthe
methodologyofAnnex1
1Interferencemodel
2HAPScharacteristics
3GSOsatellitecharacteristics
4Calculationresults
Annex2-Amethodologyforthecalculationofthee.i.r.p.
transmissionsfromHAPSintheHAPS-to-ground
directionwithintheband27.5-28.35GHzthat
wouldcauseagivenincreaseintheI/Nof
receiversofFSSgeostationarysatellites
1Introduction
2Descriptionofthemethod
3InterferencelevelsfromtypicalHAPSsystems
Appendix1toAnnex2-Anexampleoftheapplicationof
themethodologyofAnnex2
1Introduction
2Interferenceto2degreebeamwidthFSShubstationbeams
3Interferenceto0.3degreebeamwidthFSSsmalluser
terminalbeams
4InterferencelevelsfromtypicalHAPSsystems
Annex3-AmethodologyforC/Iassessmentfromthe
HAPS-to-groundtransmission(downlink)oftheFS
usingHAPStotheEarth-to-space(uplink)ofthe
FSSusingGSOsatelliteswithintheband
27.5-28.35GHz
1Introduction
2AmethodologyforC/Iassessment
2.1C/Icalculation
2.2Calculationofoff-axisangle
Appendix1toAnnex3-Anexampleoftheapplicationof
themethodologyofAnnex3
1HAPSsystemparameters
2GSOsatellitesystemparameters
3Calculationresults
3.1Case1
3.2Case2
4Summary

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