The ITU Radiocommunication Assembly considering a) that during the planning stage of a satellite network it may be useful to calculate carrier-to-interference (C/I) ratios between carriers of the interfering and interfered-with networks for the purpose of determining levels of interference; b) that such calculations depend on the relative geometry of the satellite network involved; c) that the carrier-to-interference ratios can be used in the determination of interference levels contributing to performance degradation; d) that the carrier-to-interference ratios can be used for all modulation methods and signal types; e) that the carrier-to-interference calculation may be an element to complete frequency coordination of satellite networks in accordance with the Radio Regulations; f) that alternative methods may be used, by agreement between the administrations concerned, to calculate levels of interference between satellite networks (see for example Recommendation ITU-R S.740).
ITU-R S.741-2 SPANISH-1994 history
1994ITU-R S.741-2 SPANISH-1994 Carrier-to-Interference Calculations between Networks in the Fixed-Satellite Service