The Office of the Communications Authority (OFCA) of Hong Kong publishes the criteria for type approval for 5G NR base station equipment operating in frequency bands below 6 GHz.
Operating Frequencies
| Band Arrangement | Downlink (Base Station TX) | Uplink (Base Station RX) |
|---|---|---|
| Paired Band | 925 – 960 MHz | 880 – 915 MHz |
| 1805 – 1880 MHz | 1710 – 1785 MHz | |
| 2110 – 2170 MHz | 1920 – 1980 MHz | |
| 2620 – 2690 MHz | 2500 – 2570 MHz | |
| Unpaired Band | 2300 – 2390 MHz | |
| 2300 – 2390 MHz | ||
| 2300 – 2390 MHz | ||
| 2300 – 2390 MHz | ||
The equipment shall meet the technical requirements in the latest version of specification TS 38.141-1 as follows:
Transmitter Requirements
| Transmitter Characteristics | Relevant Clause in 3GPP TS 38.141-1 |
|---|---|
| Base station output power | Clause 6.2 |
| Unwanted emissions | Clause 6.6 excluding Clause 6.6.2 on occupied bandwidth and Clause 6.6.5.5.1.4 on colocation with other base stations |
| Transmitter intermodulation | Clause 6.7 |
Receiver Requirements
| Receiver Characteristics | Relevant Clause in 3GPP TS 38.141-1 |
|---|---|
| In-band selectivity and blocking | Clause 7.4 |
| Out-of-band blocking | Clause 7.5 excluding Clause 7.5.5.2 on co-location requirements |
| Receiver spurious emissions | Clause 7.6 |
| Receiver intermodulation | Clause 7.7 |
The spurious emissions falling onto the 3.7 – 4.2 GHz band shall not exceed – 52 dBm/MHz.