The purpose of this Report is to build visions on the satellite component of IMT-Advanced in terms of application scenarios, service, system, radio interface and network aspects and the considered specific features, to address a high-level of the constraints placed on the satellite radio interface(s) of IMT-Advanced particularly with respect to service and technical requirements, and finally to provide evaluation criteria and methodology on the requirements in order to produce Recommendations for development of the satellite radio interface(s) of IMT-Advanced.