Annex 1 Methodology
1 General
2 Detailed description of the flow chart
2.1 Box (1): Existing ITU documents
2.2 Box (2): Existing ITU documents
2.3 Box (3): Evaluate interference
2.4 Boxes (4), (5) and (6): New information
2.5 Box (i): Transmitter emission
2.5.1 General case
2.5.2 In-band satellite transmitted power level based on
RR Table 21-4
2.5.3 Power density based on total space station RF power
2.5.4 Power density based on ITU satellite filings
2.6 Box (ii): Interference power
2.6.1 EESS receiver
2.6.2 RAS receiver
2.7 Box (iii): Assess discrepancy
2.8 Box (iv): Consultative solution
2.9 Diamond (a): Interference power £
passive service criteria
2.10 Diamond (b): Interference power £
threshold
2.11 Diamond (c): Can the emission parameters be refined?
2.12 Diamond (d): Can the reception parameters in passive band be
refined?
2.13 Diamond (e): Is the application of mitigation techniques
feasible?
2.13.1 Active system
2.13.2 Passive system
2.14 End circles (a), (b), (c)
Appendix 1 to Annex 1
1 Interference power calculations
2 Possible refinement of the interference power calculation in the case of
unwanted emissions from FS systems that may fall within EESS bands
3 Minimum Earth-to-space propagation attenuation due to atmospheric gases
for use in compatibility studies between passive services and active services
3.1 Introduction
3.2 Estimation of Earth-to-space path attenuation
4 Note on reflection coefficient
Annex 2 Compatibility analysis between RAS systems operating in the 1 400-1 427 MHz band and BSS (space-to-Earth) systems
operating in the 1 452-1 492 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 BSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based upon regulatory provisions
2.4 Operational characteristics
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of interference level
4.3 Values achieved
4.3.1 Spectral line observations
4.3.2 VLBI observations
4.3.3 Continuum observations
5 Mitigation techniques
5.1 RAS
5.2 BSS
5.3 Potential impact
5.3.1 RAS
5.3.2 BSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 3 Compatibility analysis between the EESS (passive) systems operating in
the 1 400-1 427 MHz band and radiolocation
service systems operating in the 1 350-1 400 MHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 Radiolocation service
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on ITU-R provisions and Recommendations
2.3.1 RR No. 1.153
2.3.2 Recommendation ITU-R SM.1541
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.2 Calculation of interference level
4.2.1 Required attenuation in passive band
4.2.2 Calculation of unwanted emissions from radar
Systems 1 and 2
4.3 Values achieved
5 Mitigation techniques
5.1 EESS (passive)
5.2 Radiolocation service
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 Radiolocation service
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 4 Compatibility analysis between the RAS in the 1 400-1 427
MHz band and GSO mobile-satellite systems (space-to-Earth) operating in the 1 525-1 559 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics, type of observations
2 Mobile-satellite systems
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on regulatory provisions
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of interference level
4.3 Values achieved
5 Mitigation techniques
5.1 RAS
5.2 MSS
5.3 Potential impact
5.3.1 MSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 5 Compatibility analysis between RAS systems operating in the 1 610.6-1 613.8 MHz band and RNSS systems operating in the
1 559-1 610 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 RNSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based upon regulatory provisions
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of the interference level
4.3 Values achieved
5 Mitigation methods
5.1 RAS
5.2 RNSS
5.3 Potential impact
5.3.1 RAS
5.3.2 RNSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 6 Compatibility analysis between RAS systems operating in the 1 610.6-1 613.8 MHz band and MSS (space-to-Earth) systems
operating in the 1 613.8-1 626.5 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 MSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based upon regulatory provisions
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of the interference level
4.3 Values achieved
5 Mitigation techniques
5.1 RAS
5.2 MSS
5.3 Potential impact
5.3.1 RAS
5.3.2 MSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 7 Compatibility analysis between RAS systems operating in the 1 610.6-1 613.8 MHz band and GSO MSS (space-to-Earth)
systems operating in the 1 525-1 559 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 MSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based upon regulatory provisions
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of the interference level
4.3 Values achieved
5 Mitigation techniques
5.1 RAS
5.2 MSS
5.3 Potential impact
5.3.1 RAS
5.3.2 SMS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 8 Compatibility analysis between the RAS systems (space-to-Earth)
operating in the 2 690-2 700 MHz band and the BSS, and
FSS (space-to-Earth) systems operating in the 2 655-2 690 MHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required service protection criteria
1.4 Operational characteristics
2 Active band
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on regulatory provisions
2.4 Transmitter characteristics
2.4.1 FSS/MSS systems
2.4.2 BSS systems
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.1.1 MSS/FSS cases
4.1.2 BSS case
4.2 Calculation of the interference level
4.3 Values achieved
4.3.1 FSS/MSS case
4.3.2 BSS case
5 Mitigation techniques
5.1 RAS
5.2 FSS/BSS service
5.3 Potential impact
5.3.1 RAS
5.3.2 FSS/BSS
6 Results of studies
6.1 Summary
6.2 Conclusion
Annex 9 Compatibility analysis between the EESS (passive) systems operating in
the 10.6-10.7 GHz band and FSS (space-to-Earth) systems operating in the
10.7-10.95 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS (space-to-Earth)
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on provisions and ITU-R Recommendations
2.3.1 RR No. 1.153
2.3.2 Recommendation ITU-R SM.1541
2.4 Transmitter characteristics
2.4.1 GSO satellite networks
2.4.2 Non-GSO networks
2.4.3 Highly elliptical orbit (HEO) networks
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.2 Calculation of interference level
4.2.1 Calculations with the GSO networks (back lobe
reception)
4.2.2 Calculations with the non-GSO networks
4.2.3 Calculations with the HEO/Elliptical networks (back
lobe reception)
4.2.4 Calculations for both GSO and non-GSO networks in
the case of scattering
4.3 Values achieved
5 Mitigation techniques
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 10 Compatibility analysis between RAS systems operating in the 10.6-10.7
GHz band and FSS (space-to-Earth) systems operating in the 10.7-10.95 GHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.2.1 Single dish observations
1.2.2 VLBI observations
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based upon regulatory provisions
2.4 Transmitter characteristics
2.5 Operational characteristics
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of the interference level
4.3 Values achieved
4.3.1 European example for GSO satellite systems
4.3.2 Region 2 example for GSO satellite systems
4.3.3 Non-GSO satellite systems
5 Mitigation techniques
5.1 RAS
5.2 The active service
5.3 Potential impact
5.3.1 RAS
5.3.2 FSS
6 Results of studies
6.1 Summary
6.2 Conclusion
Annex 11 Compatibility analysis between the EESS (passive) in the 21.2-21.4
GHz band and both FSS (space-to-Earth) and MSS (space-to-Earth) systems in the
20.2-21.2 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application (type of observation)
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS (space-to-Earth) and MSS (space-to-Earth)
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on RR provisions and ITU-R Recommendations
2.3.1 RR No. 1.153
2.3.2 Recommendation ITU-R SM.1541
2.3.3 Recommendation ITU-R SM.329
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.1.1 Use of the mask presented in Recommendation ITU-R
SM.1541 for determination of OoB emissions
4.1.2 Assumption that the occupied bandwidth does not
extend beyond the space service band
4.1.3 Interference threshold
4.2 Calculation of interference level
4.2.1 Direct interference path
4.2.2 Backscatter interference
4.3 Values achieved
5 Mitigation techniques
5.1 EESS (passive)
5.2 FSS and MSS
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 FSS and MSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 12 Compatibility analysis between RAS systems operating in the
22.21-22.5 GHz band and BSS (space-to-Earth) systems operating in the 21.4-22
GHz band
1 Radio astronomy
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 BSS
2.1 Allocated transmit band
2.2 Service
2.3 Levels based on regulatory provision
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of interference level
4.3 Values achieved
5 Mitigation methods
5.1 RAS
5.2 BSS
5.3 Potential impact
5.3.1 RAS
5.3.2 BSS
6 Results of studies
6.1 Summary
6.2 Conclusion
Annex 13 Compatibility analysis between the EESS (passive) in the 23.6-24 GHz
band and the ISS in the 22.55-23.55 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
1.4.1 Conically scanned instruments
1.4.2 Operational characteristics of nadir instruments
2 ISS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on spectral representation
2.4 Transmitter characteristics
2.4.1 Non-GSO satellite network Hib-Leo 2
2.4.2 Parametric characteristics of inter-satellite links
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.2 Calculations of interference level for conically scanned
passive sensor
4.2.1 ISS satellite is right above the passive sensor
4.2.2 ISS satellite is right below the passive sensor
4.2.3 Calculations when the ISS satellite is at the limb
of the EESS sensor
4.3 Calculation of interference level for nadir passive sensor
4.3.1 Identification of the worst configurations
4.3.2 Summary of co-frequency link budgets and comments
4.4 Dynamic interference analysis
4.4.1 Modelling of the push-broom antenna
4.4.2 Dynamic calculations with Hib‑Leo 2 system
4.5 Application of OoB mask to the ISS transmission
4.5.1 Conically scanned sensor
4.5.2 Nadir sensors
5 Mitigation techniques
5.1 EESS (passive)
5.2 ISS
5.2.1 Necessary bandwidth limits and guardbands
5.2.2 Baseband filtering
5.2.3 Lower emission power and/or reduction of necessary
bandwidth
5.2.4 Geometric separation and ISS orbits
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 ISS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 14 Compatibility analysis between the EESS (passive) in the 31.3-31.5
GHz band and the FSS
(Earth-to-space) and the MSS (Earth-to-space) in the 30-31 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
1.4.1 Conically scanned sensors
1.4.2 Nadir scanning sensor
2 FSS and MSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on spectral representation
2.4 Transmitter characteristics
2.4.1 GSO satellite networks
2.4.2 Non-GSO networks
3 Interference threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.2 Calculation of interference level in case of conically-scanned
sensors
4.2.1 Determine power on Earth at threshold level
4.2.2 Calculations with the GSO and non-GSO networks
4.3 Nadir sounder “push-broom”: Calculation of interference level
4.3.1 Calculation with the GSO and non-GSO networks
4.3.2 Result of the analysis
4.3.3 Discussion of results
4.4 Dynamic interference analysis
4.4.1 Modelling of the push-broom antenna
4.4.2 Dynamic calculations with GSO systems
4.4.3 Dynamic calculations with non-GSO systems
4.5 Application of OoB masks to the FSS earth station transmission
4.5.1 Nadir sounder push-broom
4.5.2 Conically scanned sensors
5 Mitigation technique
5.1 EESS (passive)
5.2 FSS and MSS
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 FSS and MSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 15 Compatibility analysis between EESS (passive) systems operating in
the 31.3-31.5 GHz band and fixed service (FS) systems operating in the 31-31.3
GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FS
2.1 Allocated band
2.2 Application
2.3 Levels based on existing ITU documents
2.4 Transmitter characteristics
2.5 Operational characteristics
2.5.1 P-MP operational characteristics
2.5.2 P-MP operational characteristics
2.6 In band transmit power
3 Compatibility threshold (if applicable)
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation
4.3 Value achieved
4.3.1 Level of unwanted emissions based on ITU-R
Recommendations
4.3.2 Refinement of the calculations
4.3.3 Summary and conclusions for P-P and P-MP systems
5 Mitigation techniques
5.1 EESS (passive)
5.2 FS
5.3 Potential impact
5.3.1 EESS
6 Results of the studies
6.1 Summary
6.2 Conclusion
Annex 16 Compatibility analysis between EESS (passive) systems operating in
the 31.5-31.8 GHz band and FS systems operating in the 31.8-33.4 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FS
2.1 Allocated band
2.2 Application
2.3 Levels based on existing ITU documents
2.4 Transmitter characteristics
2.5 Operational characteristics
2.5.1 P-P operational characteristics
2.5.2 P-MP operational characteristics
2.6 In band transmit power
3 Compatibility threshold
4 Interference assessment
4.1 Methodology to assess the interference level
4.2 Calculation
4.3 Value achieved
4.3.1 Level of unwanted emissions based on ITU-R
Recommendations
4.3.2 Refinement of the calculations
5 Mitigation techniques
5.1 EESS (passive) service
5.2 FS
5.3 Impact of mitigation techniques
5.3.1 EESS
5.3.2 FS
6 Results of studies
6.1 Summary
6.2 Conclusion
Annex 17 Compatibility between the EESS (passive) in the 31.5-31.8 GHz band
and radionavigation systems operating in the 31.8-33.4 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 Radionavigation service
2.1 Allocated band
2.2 Application
2.3 Levels based on RR provisions and ITU-R Recommendations
2.3.1 RR No. 1.153
2.3.2 Recommendation ITU-R SM.1541
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In band transmit power
3 Compatibility threshold
4 Interference assessment
4.1 Methodology to assess the interference level
4.2 Calculation of interference level
4.2.1 Required attenuation in passive band
4.2.2 Calculation of unwanted emissions from radar
Systems 1 and 2
4.3 Values achieved
5 Mitigation techniques
5.1 EESS (passive)
5.2 Radionavigation service
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 Radionavigation service
6 Results of studies
6.1 Summary
6.2 Conclusion
Annex 18 Compatibility analysis between RAS systems operating in the 42.5-43.5
GHz band and FSS and BSS (space-to-Earth) systems operating in the 41.5-42.5
GHz band
1 RAS
1.1 Allocated band
1.2 Type of observations
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS and BSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on existing ITU documents
2.4 Transmitter characteristics
2.5 Operational characteristics
2.6 In-band transmit level
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess the interference level
4.2 Calculation of interference level
4.3 Values achieved
5 Mitigation techniques
5.1 RAS
5.2 FSS and BSS
5.2.1 Satellite filtering
Case 1: Multibeam space station
Case 2: Phased array space station
5.2.2 Geographic isolation
5.2.3 Spectral shape of FSS/BSS signal
5.2.4 Guardband
5.2.5 Additional mitigation methods
5.3 Potential impact
5.3.1 RAS
5.3.2 FSS and BSS
6 Results of studies
6.1 Summary
6.2 Conclusions
Annex 19 Compatibility analysis between EESS (passive) systems operating in
the 50.2-50.4 GHz band and FSS (Earth-to-space) systems operating in the
47.2-50.2 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS (Earth-to-space)
2.1 Transmit band
2.2 Application
2.3 Levels based on spectral representation
2.4 Transmitter characteristics
2.5 Operational characteristics
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference levels
4.1.1 GSO FSS earth stations
4.1.2 Non-GSO FSS earth stations
4.2 Calculation of interference in the co-frequency hypothesis
4.3 Result of the analysis and discussion
4.3.1 Interference events occurring via passive sensor
antenna far-lobe and FSS earth station antenna main-lobe
4.3.2 Interference occurring when the passive sensor is
close to the zenith of the FSS earth station
4.4 Dynamic interference analysis
4.4.1 Modelling of the push-broom antenna
4.4.2 Dynamic calculations with GSO systems
4.4.3 Dynamic calculations with non-GSO systems
4.5 Application of OoB spectral representation to the FSS earth
station transmission
5 Mitigation techniques
5.1 EESS (passive)
5.2 FSS
5.2.1 Offset of the active channel from band edge
5.2.2 Power and necessary bandwidth
5.2.3 Inversion of the directions of transmission
5.2.4 Baseband filtering
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 FSS
6 Results of studies
Annex 20 Compatibility analysis between EESS (passive) systems operating in
the 50.2-50.4 GHz band and the FSS (Earth-to-space) and MSS (Earth-to-space)
service systems operating in the 50.4-51.4 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FSS and MSS
2.1 Allocated transmit band
2.2 Application
2.3 Levels based on spectral representation
2.4 Transmitter characteristics
3 Compatibility threshold
4 Interference assessment
4.1 Methodology used to assess interference level
4.2 Calculation of interference in the co-frequency hypothesis
4.3 Result of the analysis and discussion
4.3.1 Interference events which occur when the passive
sensor is in the main lobe of the FSS earth station
4.3.2 Interference which occurs when the passive sensor
is close to the zenith of the FSS earth station
4.4 Dynamic interference analysis
4.4.1 Modelling of the push-broom antenna
4.4.2 Dynamic calculations with GSO FSS systems
4.4.3 Dynamic calculations with GSO MSS systems
4.5 Application of OoB masks to the FSS/MSS earth station
transmission
5 Mitigation techniques
5.1 EESS (passive)
5.2 SFS and MSS
5.2.1 Implementation of guardbands
5.2.2 Power and necessary bandwidth
5.2.3 Baseband filtering
5.3 Potential impact
5.3.1 EESS (passive)
5.3.2 FSS and MSS
6 Results of studies
Annex 21 Compatibility analysis between EESS (passive) systems operating in
the 52.6-52.8 GHz band and FS systems operating in the 51.4-52.6 GHz band
1 EESS (passive)
1.1 Allocated band
1.2 Application
1.3 Required protection criteria
1.4 Operational characteristics
2 FS
2.1 Allocated band
2.2 Application
2.3 Levels based on existing ITU documents
2.4 Transmitter characteristics
2.5 Operational characteristics
2.5.1 P-P operational characteristics
2.5.2 P-MP operational characteristics
2.6 In-band transmit power
3 Compatibility threshold
4 Interference assessment
4.1 Methodology to assess the interference level
4.2 Calculation
4.3 Value achieved
4.3.1 Level of unwanted emissions based on ITU-R
Recommendations
4.3.2 Refinement of the calculations
5 Mitigation techniques
5.1 EESS (passive)
5.2 FS
5.3 Potential impact
5.3.1 EESS
5.3.2 FSS
6 Results of the studies
6.1 Summary
6.2 Conclusion