5G • Spectrum
Band n257
28 GHz mmWave Band (26.5 - 29.5 GHz)
Primary global millimeter-wave band delivering multi-gigahertz bandwidth across the US, Japan, and Korea.
Technical Explanation
Band n257 covers 26.5 GHz to 29.5 GHz in FR2. With support for up to 400 MHz single carriers and 800 MHz Carrier Aggregation, n257 achieves real-world download speeds exceeding 4 Gbps in crowded stadiums, airports, and city plazas.
Key Functions
- Operating frequency: 26.5 - 29.5 GHz mmWave (FR2)
- Supports carrier bandwidths up to 400 MHz and 120 kHz SCS
- Delivers multi-gigabit peak data rates in dense venues and stadiums
Specifications
3GPP TS 38.101-2
Interfaces
Uu
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