I am studying a system in 5G which are represented as a combination terrestrial and non-terrestrial network (including satellite segments or HAP/LAP) [5G NTN]
it is a unified terrestrial aerospace network = a space segment- ground station - user equipment.
I understand it that if I want to compute link budget, I cannot compute link budget separately, it is unified, it should be studied jointly.
There is a lot publication about 5G NTN system, but I didn’t find an explanation how I can compute link budget for this system.
Could someone please explain how I can compute link budget such system?
PS unified - seamless integration of satellite and terrestrial components. it makes to enable 5G user terminals on or close to the earth’s surface to connect to non-terrestrial base stations located on satellites.
As I understood, in such system we cannot differently study links, satellite - ground station, ground station- user terminals, satellite- user terminals. The link should be studied as link satellite-ground station-user terminals. it will be one complete link
EDIT 1: Andy aka comment
From: "Non-Terrestrial Network Realities Call for New 5G Testing Approaches"
About frequencies:
For FR1, 3GPP reached an agreement for the following NTN bands:
- • 1980-2010MHz / 2170-2200MHz is the “S-band”; In the International Telecommunications Union (ITU), this band is identified for both satellite and terrestrial component of the International Mobile Telecommunications (IMT) frameworks
- • Part of the L-band is allocated to Maximum Segment Size (MSS), depending on GEO/non GEO composition
EDIT 2 Marcus Müller comment
5G standards make Terrestrial Networks and satellite/HAP/LAP segments part of the ecosystem of the 5G connectivity infrastructure.
As I understood, it is like hybrid system, which uses a ground system and space system together to create a link.
