Policy on Intellectual Property Right (IPR)
1 Introduction
Annex 1 System parameters of unplanned BSS systems and associated feeder
links in frequency bands 17.3-17.8 GHz and 24.75-25.25 GHz
Appendix 1 to Annex 1 Examples of system
parameters of unplanned BSS systems and associated feeder links in frequency
bands 17.3-17.8 GHz and 24.75-25.25 GHz
Attachment 1 to Appendix 1 Reference receiving
antenna pattern
Antenna pattern:
Appendix 2 to Annex 1 A study of orbital
separation requirements for the unplanned BSS and associated feeder links in
frequency bands 17.3-17.8 GHz and 24.75-25.25 GHz
1 Introduction
2 Methodology
2.1 Assumptions
3 Results
3.1 Homogeneous
model for interfering system based on wanted system
3.2 Inhomogeneous
model for interfering system based on different modulation schemes
4 Conclusion
Attachment 1 to Appendix 2 System characteristics
Attachment 2 to Appendix 2 Error performance
requirements
Appendix 3 to Annex 1 A further study of orbital
separation requirements for BSS and associated feeder links in frequency bands
17.3-17.8 GHz and 24.75-25.25 GHz
1 Introduction
2 Assumptions
3 Results
3.1 Homogeneous
model for interfering system based on wanted system
3.1.1 Case 1:
using QPSK modulation
3.1.2 Case 2:
using 8-PSK modulation
3.1.3 Case 3:
using 16-APSK modulation
3.1.4 Case 4:
using 32-APSK modulation
3.2 Inhomogeneous
model for interfering system based on different modulation methods
4 Conclusion
Attachment 1 to Appendix 3
Attachment 2 to Appendix 3
Annex 2 BSS system parameters in frequency band 21.4-22.0 GHz and
associated feeder links
1 Study items of 21 GHz
band broadcasting satellites
2 Downlink receiving earth
station antenna patterns
2.1 Conditions for
the measurement
2.2 Measured
antenna patterns
3 Example of the 21 GHz
band broadcasting satellites
3.1 Service
availability for the BSS in the band 21.4‑22 GHz
3.2 Attenuation
caused by precipitation and other meteorological factors in the band 21.4‑22 GHz
3.3 Downlink e.i.r.p.
or pfd in the band 21.4-22 GHz
3.4 Examples of
BSS utilizing the locally-variable e.i.r.p. system in the band 21.4‑22 GHz
3.5 Examples of
BSS system in the band 21.4-22 GHz with no mitigation technique
3.6 Conclusion
Appendix to § 3 of Annex 2 Examples of BSS
parameters utilizing a locally-variable e.i.r.p. system
4 A study of antenna
radiation pattern of a variable e.i.r.p. broadcasting-satellite system in the
21 GHz band
4.1 Introduction
4.2 Simulation of radiation pattern design
4.3 Conclusion
5 C/(N + I) margins in the sharing situations
for BSS in the 21 GHz band
5.1 Introduction
5.2 Assumed
interfering situation
5.3 An example of BSS system parameters for this study
5.4 Applied
methodologies
5.5 Summary of
calculation results of C/(N + I)
5.5.1
C/(N + I)
in the case of using same
modulation scheme for the locally-variable
e.i.r.p. satellite
5.5.2
C/(N + I)
in the case of using different
modulation schemes for the locally-variable
e.i.r.p. satellite
5.5.3
Consideration of the worst case of C/(N + I) margin for the receiving earth station A and its duration of
interference
5.5.4 C/(N + I) when using conventional BSS
5.6 Conclusion
Appendix to § 5 of Annex 2 Summary of
calculation results of C/(N + I) when using conventional BSS
1 C/(N + I) in the case of using same modulation scheme
2 C/(N + I) in the case of using different modulation schemes
6 Methodology to estimate
unwanted emissions from BSS (21.4-22.0 GHz)
6.1 Introduction
6.2 Methodology
6.2.1 Technical
items in regard to unwanted emissions
BSS system parameters:
Sources of unwanted emissions (RR 1.146):
6.2.2 Example
of analysis of unwanted emissions falling into the RAS band
6.3 Estimation of
spectral regrowth of digital modulated signal due to transponder non‑linearity
and TWT noise falling into RAS band
6.3.1 Assumption
of transmission parameters for BSS system and block diagram of simulation
6.3.2 Spectral
regrowth for PSK signal
6.3.3 Estimation of noise originating from TWTA
6.3.4 Improvement
in the out-of-band rejection of filters
6.3.5 Unwanted
emissions in the RAS band from the BSS system
6.4 Conclusion
7 Transmission schemes for
satellite broadcasting utilizing the receiver with a storage function
7.1 Parity-symbols
time differential (PTD) transmission scheme
7.2 Method of
simulation using the measured rain attenuation data
7.3 Simulation
results of non-real-time transmission schemes
7.3.1 Modulation
for PTD
7.3.2 Comparison
of PTD with TD and real-time transmission
7.3.3 Dependence
on the rain attenuation margin
7.4 Conclusion
Appendix to § 7 of
Annex 2 Dependence of interval
time