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分类：Huawei base station
产品时间：2025-10-13
简要描述：
RRU 3971（02312HMY）Buy the Huawei RRU 3971-1800 (02312HMY) — a 4T4R remote radio unit designed for LTE 1800 MHz (Band 3) macro base stations.Delivers up to 4 × 40 W output power, supports GSM / UMTS / LTE multi-mode operation, and connects via dual CPRI ports (up to 9.8 Gbps).Rugged outdoor design with −40 °C – +55 °C operating range, compatible with Huawei BBU3900 / BBU3910 / BBU5900.
The Huawei RRU 3971 is an outdoor remote radio unit (RRU) designed for close-to-antenna deployment in macro base stations. It supports multi-mode operation (GSM, UMTS, LTE) via software configuration and uses the software-defined radio (SDR) architecture.
The “1800” variant indicates this model is optimized for Band 3 / LTE 1800 MHz.
TX / RX paths: 4 × transmit + 4 × receive (4T4R) mode in many deployments.
Supported RATs: LTE FDD, GSM, UMTS (via software)
Supported bandwidths / carriers: Up to 2 LTE carriers in typical 4×4 single-mode configuration.
Output power (typical): 4 × 40 W (for LTE single-mode, 1800 MHz)
Power-sharing / multicarrier output: When combining GSM + LTE, power sharing is supported under certain software limits.
Frequency range (for 1800 variant):
• RX: ~ 1710 – 1785 MHz
• TX: ~ 1805 – 1880 MHz
Instantaneous bandwidth (IBW): 45 MHz for 1800 variant
| Parameter | Specification |
|---|---|
| Input voltage / supply | –48 V DC, supporting a range of –36 V to –57 V DC |
| Dimensions (H × W × D) | 400 mm × 300 mm × 100 mm (body) |
| Weight | ~ 15 kg (excluding mounting hardware) |
| CPRI ports | 2 ports, supporting 1.25 / 2.5 / 4.9 / 9.8 Gbit/s |
| Topology & cascading | Star / chain / dual-star; cascading levels depend on BBU configuration. |
| Maximum distance to BBU (single-mode) | Up to 20 km depending on BBU type (for certain CPRI configurations) |
| Operating temperature | –40 °C to +55 °C (without solar radiation); with solar, up to +50 °C |
| Humidity / environment | 5% to 100% RH; supports outdoor installation under standards (ETS etc.) |
Number of CPRI ports: 2
Supported CPRI line rates: 1.25, 2.5, 4.9, 9.8 Gbit/s
Topology types: star, chain, dual-star
Max cascades / distances: Vary by band / BBU – e.g. some BBU types allow up to 40 km in certain modes.
Macro LTE 1800 deployments (capacity or coverage)
Multi-mode upgrade paths (GSM / UMTS + LTE)
Software-defined flexibility: one hardware, many modes via software configuration
Integration in Huawei DBS / BTS / BBU setups under SRAN / SRAN baseline series (compatibility across versions)
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