Band n8 (5G NR, 900 MHz)
Understanding Band n8
GSM 900 MHz is the most iconic cellular frequency band in history. Launched in the early 1990s, it provided the first digital mobile phone networks across Europe, Africa, and Asia. Three decades later, this same spectrum is being refarmed for its fourth generation of technology: 5G NR. The refarming process is gradual, as operators must maintain GSM service for legacy devices and IoT modules that depend on 900 MHz GSM.
At 900 MHz, propagation is similar to 850 MHz (Band n5): 7 dB better than 1800 MHz and 11.5 dB better than 3500 MHz. Cell radius reaches 5 to 10 km in rural areas. The 35 MHz paired allocation supports 10 to 15 MHz NR carriers once GSM is fully retired. European operators like Vodafone, Deutsche Telekom, and Orange deploy n8 to add a third low-band 5G layer alongside n20 (800 MHz) and n28 (700 MHz).
Band n8 Technical Parameters
UL: 880 – 915 MHz (35 MHz)
DL: 925 – 960 MHz (35 MHz)
Duplex spacing: 45 MHz
Refarming Timeline:
GSM 900 (1990s) → UMTS 900 (2010s) → LTE B8 (2015+) → NR n8 (2022+)
Coverage:
vs. 1800 MHz (n3): −7.0 dB path loss
vs. 3500 MHz (n78): −11.5 dB path loss
Rural cell radius: 5–10 km
GSM 900 MHz Refarming Status
| Region | GSM Status | NR n8 Status | Timeline |
|---|---|---|---|
| South Korea | Shut down | Deployed | Complete |
| Western Europe | Winding down | DSS deploying | 2025-2028 |
| Eastern Europe | Active | Planning | 2027-2030 |
| Africa/MENA | Active | Future | 2030+ |
Frequently Asked Questions
How is GSM 900 MHz being refarmed to 5G NR?
Staged process: reduce GSM to 5 to 10 MHz, refarm freed spectrum to LTE Band 8, then NR n8 via DSS. Where GSM is fully shut down, entire 35 MHz goes to NR. Process takes 5 to 10 years per market due to legacy device populations and IoT dependencies.
How does n8 compare to other European low-bands?
Three EU low-band NR options: n20 (800 MHz, 30 MHz), n8 (900 MHz, 35 MHz), n28 (700 MHz, 45 MHz). n28 has best propagation/bandwidth. n20 is most deployed. n8 offers most mature infrastructure. Some operators hold all three for triple low-band coverage.
Is Band n8 available in the United States?
No. US uses 850 MHz as Band n5 instead. GSM 900 was never deployed in the US (used GSM 1900/Band 2 instead). Band n8 is exclusively non-US: Europe, Asia-Pacific, Middle East, Africa.