RECOMMENDATION
ITU-R M.1831
A coordination methodology for RNSS inter-system interference estimation
Annex 1 A method for estimating inter-system
interference between systems and networks in the RNSS
1 Introduction
2 Interference analysis methodology
3 Data used in the calculations
3.1
Constellation and satellite transmitter models
3.1.1 Worst-case received signal levels
3.1.2 Spectral separation coefficients (β)
3.2 User
receiver model
3.3
Interference and noise model
4 A simulation-based approach for calculating Gagg
5 A hypothetical
example of the methodology’s application
5.1 An
assessment of interference levels
5.2
An assessment of effective carrier-to-noise ratios and related
degradation
6 Line spectrum signal modelling
7 Conclusion
Annex 2 Development of information and proposals for an assessment
of RNSS external and intersystem interference
1 RNSS Interference components
2 The “shared approach” to RNSS interference
Annex 3 Guidance regarding coordination between RNSS systems
1 Which RNSS
systems are to be taken into consideration in calculations?
2 Where notified
networks are to be taken into consideration, in which order should this be done
(e.g. based on coordination request date or another way)?
3 When
coordination is to be undertaken, which characteristics are to be used?
4 How can the Iext
parameter mentioned in Annexes 1 and 2 be assessed?