RES158 – 254 – ADD RESOLUTION 158 (WRC-15) Use of the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space) by earth stations in motion communicating with geostationary space stations in the fixed-satellite service The World Radiocommunication Conference (Geneva, 2015), considering a) that the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space) are globally allocated on a primary basis to the fixed-satellite service (FSS) and that there are a large number of geostationary FSS satellite networks operating in these frequency bands, as well as non-geostationary FSS systems; b) that in these frequency bands there are a large number of fixed-service stations, as well as mobile-service stations; c) that regulatory and technical procedures exist in these frequency bands between geostationary FSS networks and non-geostationary FSS systems; d) that there is an need for mobile communications, including global broadband satellite services, and that some of this need can be met by allowing earth stations in motion to communicate with space stations of the FSS operating in the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space); e) that some administrations have already deployed, and plan to expand their use of, earth stations in motion with operational and future geostationary FSS networks; f) that geostationary FSS networks in the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space) are required to be coordinated and notified in accordance with the provisions of Articles 9 and 11 of the Radio Regulations; g) that the frequency bands 17.7-19.7 GHz (space-to-Earth) and 27.5-29.5 GHz (Earth-to-space) are also allocated to several other services on a primary basis, the allocated services are used by a variety of different systems in many administrations and these existing services and their future development should be protected without undue constraints; h) that currently there is no specific regulatory procedure for the coordination of the earth stations in motion with regard to stations of terrestrial services, considering further a) that a consistent approach to deployment of these earth stations in motion will support these important and growing global communication requirements; b) that the ITU Radiocommunication Sector (ITU-R) has adopted Reports ITU-R S.2223 and ITU-R S.2357;