Policy on Intellectual
Property Right (IPR)
RECOMMENDATION ITU-R F.1509-1
Technical and operational requirements that facilitate sharing between
point‑to‑multipoint systems in the fixed service and the
inter-satellite service in the band 25.25-27.5 GHz
Annex 1 An assessment of the spatial and temporal distribution of
interference to DRS systems and POCS from the emissions of P-MP hub stations in
the FS in the band 25.25‑27.5 GHz
1 Introduction
2 Approach
2.1
Spatial distribution
2.2
Temporal distribution
3 Results of Study
A
3.1
Spatial distributions
3.1.1 DRS orbital
locations at 41° W, 174° W and 85° E longitude
3.1.2 DRS orbital
locations indicated in Recommendation ITU-R SA.1276
3.2
Temporal distribution
4 Results of Study
B
4.1
Results – Temporal analysis
4.2
Results – Spatial analysis
4.3
Discussion of results (§ 4)
5 Extension to
other LMDS deployments
6 Interference
into POCS
6.1
Characteristics of LMDS systems
6.2
Characteristics of POCS
6.3
Methodology
6.4
Results
7 Summary and
conclusions of Annex 1
Annex 2 Method for calculating separation angles between
hub-station antenna beams and the directions towards geostationary DRS