RES161 – 265 – c) that the frequency band 37.5-38 GHz is allocated to SRS on a primary basis in the space-to-Earth direction; d) that the frequency band 37.5-39.5 GHz is allocated to EESS on a secondary basis in the space-to-Earth direction, recognizing the need to protect existing services when considering frequency bands for possible additional allocations to any service, resolves to invite ITU-R to conduct, and complete in time for WRC-23: 1 studies considering additional spectrum needs for development of the fixed-satellite service, taking into account the frequency bands currently allocated to FSS, the technical conditions of their use and the possibility of optimizing the use of these frequency bands with a view to increasing spectrum efficiency; 2 sharing and compatibility studies with existing services, on primary and secondary basis, including in adjacent bands as appropriate, to determine the suitability of new primary allocations to the FSS in the frequency band 37.5-39.5 GHz (Earth-to-space, limited to FSS feeder links only) for both GSO and non-GSO orbit use; 3 studies towards possible revision of Resolution 750 (Rev.WRC-15) so that systems operating in the passive frequency band 36-37 GHz are protected, further resolves to invite WRC-23 to consider the results of the above studies and take appropriate actions, invites administrations to participate actively in these studies by submitting contributions to ITU-R.