Policy on Intellectual Property Right (IPR)
1 Introduction
1.1 Frequency band 399.9-400.05 MHz
1.2 Frequency band 401-403 MHz
2 Radiocommunication services having allocations in the frequency bands
399.9-400.05 MHz and 401‑403 MHz
3 Satellite services and applications in relevant frequency bands
3.1 Overview of DCS, various types of satellites
3.2 Frequency band 399.9-400.05 MHz
3.3 General partitioning and sharing conditions for the frequency
band 401-403 MHz
4 Protection criteria
4.1 Frequency band 399.9-400.05 MHz
4.2 Frequency band 401-403 MHz
5 Technical characteristics of the planned and deployed DCS systems
5.1 Frequency band 399.9-400.05 MHz
5.2 Frequency band 401-403 MHz
5.2.1 GSO and HEO system
5.2.2 Non GSO System (LEO and MEO)
6 Analyses related to the planned and deployed telecommand systems
6.1 Technical characteristics
6.1.1 Frequency band 399.9-400.05 MHz
6.1.2 Frequency band 401-403 MHz
6.2 Compatibility analyses with DCS
6.2.1 Frequency band 399.9-400.05 MHz
6.2.2 Frequency band 401-403 MHz
6.2.3 Summary of interference analysis from telecommand
operations to GSO and non‑GSO DCS satellites receivers
6.2.4 Interference mitigation to GSO DCS satellite
receivers
7 Summary of Analysis
7.1 Use of e.i.r.p. to establish limits
7.2 Use of e.i.r.p. density to establish limits
8 Conclusions
8.1 Studies regarding the e.i.r.p. limits
8.2 Studies regarding the e.i.r.p. density limits
8.3 Studies regarding potential mitigation techniques
9 Abbreviations
Annex A Use of high-gain antenna and orbit avoidance technique as mitigation
measures (Study 1)
A.1 Introduction
A.2 NGSO telecommand characteristics and information of the
satellites
A.3 Interference mitigation technique by orbital avoidance
A.4 Static Analyses
A.5 Dynamic analysis
A.6 Summary
Annex B Use of high-gain antenna and orbit avoidance technique as mitigation
measures (Study 2)
B.1 Use of high gain, directional telecommand earth station antenna
B.2 Use of predictive RFI in-line analysis
B.3 Conclusion
Annex C Use of high-gain antenna and orbit avoidance technique as mitigation
measures (Study 3)
C.1 Dynamic analysis of one SOS NGSO earth station (E-s)
transmission into GSO DCS satellite receiver
C.2 One earth station telecommands fifty NGSO satellites without
and with pointing avoidance
C.3 Determine the minimum requirement to meet the interference
protection criteria for the case of fifty NGSO satellites operating at one
earth station
C.4 Summary
Annex D Discussion regarding the elements contained in Annexes A and B
D.1 Interference power calculations at GSO DCS satellite receiver
in the frequency band 401-403 MHz
D.2 Telecommand earth station antennas used in the frequency band
401‑403 MHz
D.3 Summary for GSO DCS
D.4 Interference mitigation to non-GSO DCS satellite receivers