Policy on Intellectual Property Right (IPR)
Annex 1
1 Introduction
1.1 Definitions
2 Types of FS systems analysed for susceptibility to GSO FSS interference
2.1 P-MP system
2.2 P-P system
3 General considerations
3.1 P-MP systems
3.2 Fixed P‑P systems (including star configuration)
4 Assumptions
4.1 Basic assumptions
4.2 P-MP assumptions
4.2.1 Intra-service (including intra-system) interference
4.2.2 Omni hub
4.2.3 Subscriber distribution
4.2.4 Level ground
4.2.5 Subscriber antenna heights
4.2.6 0% blockage
4.2.7 No diversity
4.2.8 Hub height, cell radius and hub elevation angle
bias in P-MP systems
4.3 P-P FS assumptions
4.3.1 Location of FS receiver
4.3.2 Maximum hop distance
4.3.3 Minimum/maximum antenna diameter
4.3.4 Antenna height models
5 Clear-sky atmospheric attenuation
5.1 Geoclimatic parameters and applicable ranges
5.2 Water vapour density, atmospheric pressure and radio refractive
index
5.3 Discussion on the consequence of propagation related effects
6 System and interference calculations
6.1 Required margin calculations
6.1.1 Intra-service (including intra-system) and
inter-service interference determination
6.2 Calculation of required transmit power
6.3 Received carrier level calculations
6.3.1 Calculation of received carrier level and required
margin for P-MP FS hub‑to‑subscriber link (outroute)
6.3.2 Calculation of received carrier level and required
margin for P-P FS link
6.4 Calculation of available margin
6.5 Calculation of system thermal noise
6.6 Calculation of interference from GSO FSS downlinks into
receivers of P‑MP and P‑P FS systems
6.7 Discussion on accounting for the effects of rain on
interference contributions during rain faded conditions on the wanted FS signal
7 Interpretation of resulting availability statistics generated by
application of the methodology and possible ways to express sharing criteria