5G • Spectrum
Band n75
1500 MHz SDL Band (Lower L-Band)
Supplementary Downlink band (1432-1517 MHz) providing up to 85 MHz downlink capacity injection.
Technical Explanation
Band n75 is an SDL (Supplementary Downlink) allocation in Europe. Because it has no paired uplink, it cannot be used alone; instead, it is aggregated with FDD low-band anchors (e.g. n28) via Carrier Aggregation to boost downlink speeds.
Key Functions
- Operating frequency: 1432-1517 MHz DL only
- Supplementary Downlink (SDL) band with no uplink carrier
- Aggregated with primary FDD carriers to handle asymmetric downloads
Specifications
3GPP TS 38.101-1
Interfaces
Uu
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