5G NTN Testing Using Keysight S8825A Satellite & Aerospace Channel Emulation Toolset

Solution Briefs

5G NTN – Satellite Service for the Masses

Traditionally, satellite communications networks require special user terminals, with large cell phone antennas and a satellite subscription plan.

But 5G Non-Terrestrial Networks (NTNs), introduced as part of the Third Generation Partnership Project (3GPP)’s Release 17, are revolutionizing satellite phone availability and delivery. Satellite service will soon be available to billions of mobile phone subscribers worldwide.

5G NTN differs from the traditional satellite networks via network-assisted operations, where the base station helps establish and handle the cell phone connection to the satellite. In 5G NTN, the network adjusts the timing of the radio frames to match the user location and pre-compensates part of the link frequency error caused by the satellite movement, making it easier for the user terminal to tolerate the satellite link characteristics.

Network broadcast system information blocks (SIBs), which store information about satellite locations and velocities, enable the cell phone to estimate link conditions, the delay of the satellite link, and Doppler error in transmission frequency.

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5G NTN Testing Using Keysight S8825A Satellite & Aerospace Channel Emulation Toolset

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