The project defines a set of system scenarios composed by the combination of satellite access networks (in all the range of orbit heights, covering GEO, MEO, LEO without ISL and LEO with ISLs) and two transport services: broadband Internet access and 5G cell backhauling. These scenarios also include Performance Enhancement Proxies (PEPs).
Satellite scenario with 5G backhauling
For each scenario, a set of applications is selected, whose Quality of Experience is quantitatively evaluated through a set of Key Performance Indicators (KPI). For this purpose, the project implements a real-time emulation test bed, which provides a realistic modelling of the different satellite system reference scenarios and, when applicable, the 5G access network. This test bed is used with real applications, using a combination of real and replicated servers.
Measured KPIs are benchmarked against the 5G terrestrial network reference. Then, the project identifies and evaluates technology solutions that can improve KPIs and eventually act as enabler of certain applications.
There is also an assessment of the impact of these solutions on the affected elements in the satellite systems, with recommendations on a roadmap towards implementation.
The project also produces recommendations to standardization entities (mainly 3GPP and ETSI) about including satellite networks as transport networks compliant with 5G requirements.