Alias
TD 4700

Designated as the "TD 4700" band, the n79 band operates across the 4400 to 5000 MHz frequency range for 5G NR networks. Like other Time Division Duplexing (TDD) bands, it allocates the same frequency for both uplink and downlink, separating them by timing. Its high-frequency range offers high capacity for data-intensive services.

Late 2017 China announced their intention to use the 4.8 to 5 GHz for 5G services, along with studying 4.4 to 4.5 GHz band for future 5G applications. The 4.4 to 4.8 GHz band is also of strong interest to Japan, consequently 3GPP standardised n79 (4500 MHz) to harmonise requirements of China and Japan.

In April 2019 Japan completed its auction of the 4.5 GHz band, locking in the n79 band for national 5G deployments.

Technical Characteristics

Technology
5G NR
Duplexing
TDD
Channel Widths
10, 20, 30, 40, 50, 60, 70, 80, 90, 100
Uplink Start
4400 MHz
Uplink Stop
5000 MHz
UL ARFCN Low
693334
UL ARFCN High
733333
Downlink Start
4400 MHz
Downlink Stop
5000 MHz
DL ARFCN Low
693334
DL ARFCN High
733333

Geographical Band Usage

Below is a geographical distribution of countries and networks using this 5G band. Data may change without notice.