**1. Introduction**

Rapid development and unification of the terrestrial part pertained to IMT-2020 (5G) as well as the limitations claimed for global coverage by terrestrial 5G networks, when using millimeter-wave band (MMWB), calls design engineers for special attention to this potential market segment of mobile satellite telecommunications.

In Summer 2017, within the framework of Paris air show in Le Bourget, European Space Agency (ESA) launched its new project "Satellite for 5G," compiling 16 satellite businesses into consortium aimed at study to introduce 5G satellitebased access components [1].

The consortium is made up of such organizations and institutions as: EURESCOM, Fraunhofer Fokus, Fraunhofer IIS, NewTEC, SES, TU Berlin, and Universität der Bundeswehr. They all have conducted the work concerning the design of SATis5 intended to facilitate implementation, deployment, and evaluation of the integrated 5G satellite network, unveiling the advantages of satellite and terrestrial framework integration for advancing new technologies.

Additionally, the Working Group FM44 of ECC CEPT completed the preparation of ECC Report "Satellite Solutions for 5G" [2] that will determine the role of satellite component within 5G conception of in relation to the Regions, where services cannot be carried out in circumvention of satellites. In its turn, CEPT came forward with initiative to estimate the pros of satellites for 5G in terms of efficiency, capacity, and stability. Since CEPT Administrations are considering the issues related to 5G implementation in the nearest future, so the studies of satellite access in 5G are expected to facilitate the process of decision-making regarding the potential role of satellite subscriber's links in the 5G ecosystem.
