CONTENTS

Policy on Intellectual Property Right (IPR)
 1     Introduction
 2     RR Appendices 30 and 30A protection ratios and methodology
        2.1     Protection ratios and methodology applied prior to the World Radiocommunication Conference (Geneva 1997) (WRC-97) (see Note 1)
                  2.1.1     Applicable PRs prior to WRC-97
                  2.1.2     Calculation of equivalent protection margin/overall equivalent protection margin (EPM/OEPM) for cases involving only analogue signals
                  2.1.3     Calculation of EPM/OEPM for cases involving both analogue and digital signals
        2.2     PRs and methodology applied in interference assessments, following WRC-97 decisions
                  2.2.1     Applicable PRs
                  2.2.2     Treatment of both analogue and digital signals
        2.3     Calculation of C/I levels in the case of grouped assignments
                  2.3.1     General application of the group concept in C/I calculations
                  2.3.2     Treatment of adjacent channel interference effects within groups in the Regions 1 and 3 and Region 2 BSS Plans
 3     Interference between BSS carriers
        3.1     Protection of analogue carriers against digital carriers
        3.2     Protection between analogue carriers
        3.3     Protection of digital carriers against analogue carriers
        3.4     Protection between digital carriers
        3.5     Common conclusion on the protection of digital signals
 4     Compatibility between BSS transmissions and space operation systems
        4.1     Guardbands defined in RR Appendices S30 and S30A
        4.2     Scope for revision of the guardbands
        4.3     Protection of space operation systems
                  4.3.1     Protection of TTC signals against BSS carriers
                  4.3.2     Protection of adjacent broadcasting channels against TTC signals
        4.4     Operational aspects
                  4.4.1     Use of mission bands for space operation
                  4.4.2     Use of specific space operation service bands
                  4.4.3     Combined use of mission and specific frequency bands
 5     Interference between FSS transmissions and BSS assignments
        5.1     Interference from FSS transmissions into BSS assignments
        5.2     Interference from BSS Plan transmissions into FSS signals
 6     Possible evolutions of the existing PRs to be used in the future in the BSS Plans