BBU–RRU
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Huawei radio category illustration
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Huawei

PRRU3901

What it does: Converts and amplifies radio signals. Operating RF bands / ranges: 850/AWS/PCS/1800/1900 TDD/2100/2300 TDD/2500 TDD/2600 MHz; optional Wi-Fi 2400–2483.5 and 5150–5850 MHz.

1 part number: 02310WPF

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Main specifications

TechnologiesGSM (via DCU); UMTS; LTE FDD; LTE TDD; optional 2.4/5 GHz Wi-Fi
Operating RF bands / ranges850/AWS/PCS/1800/1900 TDD/2100/2300 TDD/2500 TDD/2600 MHz; optional Wi-Fi 2400–2483.5 and 5150–5850 MHz
Browse: 5150–5850 MHz
Uplink frequency850: 824–849 MHz; AWS: 1710–1755; PCS: 1850–1910; 1800: 1710–1785 (or narrow 1710–1765); 1900 TDD: 1900–1920; 2100: 1920–1980; 2300 TDD: 2327.5–2347.5; 2500 TDD: 2545–2575; 2600 FDD: 2500–2570 MHz
Downlink frequency850: 869–894 MHz; AWS: 2110–2155; PCS: 1930–1990; 1800: 1805–1880 (or narrow 1805–1860); 1900 TDD: 1900–1920; 2100: 2110–2170; 2300 TDD: 2327.5–2347.5; 2500 TDD: 2545–2575; 2600 FDD: 2620–2690 MHz
TX / RX modesUMTS: 1T1R or 1T2R; LTE FDD/TDD: 2T2R; GSM DCU: 1T1R; Wi-Fi: 2T2R
RF output powerUMTS: up to 1 × 200 mW; LTE: up to 2 × 100 mW; mixed UMTS+LTE on one RF daughter board: 1 × 50 mW + 2 × 50 mW; GSM DCU: 1 × 50 mW; Wi-Fi: 2 × 50 mW per frequency band
Interfaces / connectors2 × RJ45 CPRI (CPRI_E0 with PoE, CPRI_E1 without PoE); variants with Wi-Fi daughter board have a third GE Ethernet port; PWR port for adapter-powered versions
Interfaces and data ratesConfiguration with 1 Gbit/s ports: 2 × CPRI over RJ45 at 1 Gbit/s, star topology, Cat5e or higher, 100 m direct / 200 m with Extender; Alternative configuration: 1.228 Gbit/s per CPRI port; applicable port-rate configuration requires confirmation
Power supply2016 PoE −48 V DC; maximum consumption 30 W with 1 RF daughter board, 42 W with 2 RF boards, 55 W with 2 RF + Wi-Fi, 25.5 W Wi-Fi-only. Older 2014 PoE −36…−60 V DC or AC/DC adapter 100–120/200–240 V AC
FamilyDBS3900 LampSite
Installation environmentIndoor on wall, ceiling, metal pole, or standard U/T/H-shaped keel; outdoor only in a protective cabinet
IP ratingIP20
Additional technical information
Dimensions
230 × 230 × 50 mm (L × W × H; 2.6 L)
Weight
≤2.4 kg (2016 ); older 2014 Issue 04 specifies ≤3 kg
Bandwidth
IBW: 10 MHz at 850; 20 MHz at other listed cellular bands. LTE FDD: 5/10/15/20 MHz per carrier; LTE TDD: 10/20 MHz; mixed UMTS+LTE LTE carrier: 5/10/15 MHz
Capacity
UMTS: 2 carriers; LTE FDD/TDD: 1 carrier; GSM DCU: 4 carriers; mixed UMTS+LTE: 1 carrier each; Wi-Fi: up to 256 associated users and 300 Mbit/s per band
Chassis
Remote-radio enclosure/form factor; documented dimensions: 230 × 230 × 50 mm (L × W × H; 2.6 L); ingress protection: IP20
Modules
Up to 2 RF daughter boards; optional Wi-Fi daughter board; Wi-Fi-only configuration also supported
Functional role
LampSite pico remote radio unit that converts/processes radio and baseband signals and connects to the BBU through CPRI over Ethernet
Architecture
LampSite distributed radio; CPRI over Ethernet to RHUB; supports internal/external antennas, PoE and configurable RF/Wi-Fi daughter boards
Subtype
pRRU (pico Remote Radio Unit)
Details
Internal or external antennas; operating −5…+40 °C, storage −40…+70 °C, RH 5–95%, pressure 70–106 kPa; TMA and RET not supported

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