5G • Services
NTN LEO
Low Earth Orbit Satellite 5G
Non-terrestrial deployment operating at 500-2000 km altitude providing low latency (20-40 ms) 5G coverage.
Technical Explanation
LEO satellites orbit at high orbital velocities (~7.5 km/s) at low altitudes (500 - 1500 km). They deliver round-trip propagation delays of only 20 to 40 ms (comparable to terrestrial mobile networks), but introduce massive Doppler frequency shifts (up to +-48 kHz at 2 GHz) requiring dynamic baseband compensation.
Key Functions
- Low orbital altitude (500-1500 km) delivers low latency (20-40 ms round trip)
- Requires continuous tracking of rapid satellite movement (~7.5 km/s)
- Demands high-performance Doppler shift and timing advance compensation
Specifications
3GPP TS 38.300, TR 38.821
Interfaces
Uu
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