5G • 5G-Advanced (Rel-18)
Ka/Ku-Band NR-NTN Harmonization
High-Frequency Satellite Spectrum Standardization for 5G
Standardizes 3GPP radio specifications for 17-30 GHz Ka-band and 12-18 GHz Ku-band satellite spectrum, unlocking gigabit satellite links.
Technical Explanation
While early satellite 5G used sub-3 GHz frequencies, massive capacity requires high-frequency bands. Release 18 standardizes RF requirements for Ka-band (20/30 GHz) and Ku-band (12/14 GHz) NR-NTN operations, establishing phase noise requirements, Doppler tolerances, and atmospheric rain attenuation compensation protocols.
Key Functions
- Extends 5G-Advanced protocols into high-capacity Ka-band and Ku-band satellite frequencies
- Unlocks gigahertz of satellite spectrum for high-throughput mobile broadband gateways
- Standardizes adaptive coding and modulation (ACM) to overcome severe rain attenuation
- Bridges commercial 5G cellular equipment with global geostationary and LEO satellite fleets
Specifications
3GPP TS 38.101-5, TR 38.821 (Rel-18)
Interfaces
Ka/Ku-Band RF
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