Abstract
In the future, 5G networks will represent the global telecommunication infrastructure of the digital economy, which should cover the whole world including inaccessible areas not covered by 5G terrestrial networks. Given this, the satellite segment of 5G networks becomes one of the pressing issues of development and standardization at the second stage of 5G networks development in the period 2020–2025. The requirements for 5G satellite network will be determined primarily by combination of key services supported by 5G networks, which are combined by three basic business models of 5G terrestrial networks: enhanced Mobile Broadband Access (eMBB), Massive Internet of Things connections (mIoT), and Ultra-reliable low-latency communication (uRLLC). 3GPP as leading international standards body has identified several use cases and scenarios of 5G satellite networks development. 5G satellite networks are understood to mean networks in which the NG-RAN radio access network is constructed using a satellite network technology. The chapter has discussed the spectral and technological aspects of 5G satellite network developments, issues of architecture and role of delays on quality of services of 5G satellite segment, and possibility of constructing a 5G satellite segment based on distributed and centralized gNB base stations. The issues of satellite payload utilization have considered for bent-pipe and on-board processing technologies in 5G satellite segment.
Highlights
IntroductionRapid development and unification of the terrestrial part pertained to IMT2020 (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
Rapid development and unification of the terrestrial part pertained to IMT2020 (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
The Boeing presented nongeostationary orbit (NGSO) system would consist of 2956 Low Earth Orbit (LEO) satellites for the fixed satellite service network providing high throughput low latency access for user terminals connected through gateway (“hubs”) access to 5G network and to a terrestrial optic-fiber network as backhaul connecting to 5G
Summary
Rapid development and unification of the terrestrial part pertained to IMT2020 (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. 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 SATis 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. 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
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