BBU–RRU
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Huawei radio category illustration
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Huawei

PRRU3911

What it does: RF signal processing. Operating RF bands / ranges: 800/850/900/AWS/PCS/1800/2100/2300/2600 MHz; LAA 5150–5850 MHz; Wi-Fi 2400–2483.5 and 5150–5850 MHz.

3 part numbers: 02311JDH / 02311LMG / 02311JDH; 02311LMG

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Main specifications

TechnologiesGSM; CDMA; UMTS; LTE FDD; LTE TDD; LAA; optional 2.4/5 GHz Wi-Fi
Operating RF bands / ranges800/850/900/AWS/PCS/1800/2100/2300/2600 MHz; LAA 5150–5850 MHz; Wi-Fi 2400–2483.5 and 5150–5850 MHz
Browse: 5150–5850 MHz
Uplink frequency800: 832–862 MHz; 850: 824–849; 900: 880–915; AWS: 1710–1755; PCS: 1850–1910; 1800: 1710–1785; 2100: 1920–1980; 2300 TDD: 2300–2390; 2600 FDD: 2500–2570; 2600 TDD: 2496–2690 MHz
Downlink frequency800: 791–821 MHz; 850: 869–894; 900: 925–960; AWS: 2110–2155; PCS: 1930–1990; 1800: 1805–1880; 2100: 2110–2170; 2300 TDD: 2300–2390; 2600 FDD: 2620–2690; 2600 TDD: 2496–2690; LAA: 5150–5850 MHz
TX / RX modesGSM/CDMA: 1T1R; UMTS: 1T2R; LTE FDD/TDD: 2T2R; Wi-Fi: 2T2R at 2.4 GHz and 3T3R at 5 GHz
RF output powerUMTS 850/900: internal 1 × 100 mW or 2 × 50 mW; external 1 × 70 mW or 2 × 35 mW. UMTS 2100/PCS/AWS: internal 1 × 200 mW or 2 × 80 mW; external 1 × 140 mW or 2 × 56 mW. LTE FDD/TDD: internal 2 × 100 mW, external 2 × 70 mW; LAA EIRP 23 dBm. GSM/CDMA: 1 × 50 mW. Mixed GSM+LTE: internal 1 × 50 + 2 × 50 mW, external 1 × 50 + 2 × 35 mW. Mixed UMTS+LTE: internal 1 × 50 + 2 × 50 mW, external 1 × 35 + 2 × 35 mW. Wi-Fi transmit power: 40 mW
Interfaces / connectors2 × RJ45 (CPRI_E0/PoE and CPRI_E1); external-antenna execution: 6 × RF ports ANT0–ANT5
Interfaces and data rates2 × CPRI over RJ45, 1 Gbit/s, star topology to RHUB; Cat5e or higher; 100 m direct or 200 m with Extender; CPRI_E1 can alternatively provide Wi-Fi backhaul
Power supplyPoE −48 V DC via CPRI_E0; maximum consumption: ≤45 W triple-band, ≤46.1 W dual-band + Wi-Fi, and 46.9 W in specified 1800/2100 multi-RAT + Wi-Fi configurations
FamilyDBS3900 LampSite
Installation environmentWall, ceiling, plate, keel, indoor metal pole, or steel hangers; not on an aluminum panel or non-standard keel
IP ratingIP20
Additional technical information
Dimensions
200 × 200 × 40 mm (H × W × D)
Weight
≤1.8 kg
Bandwidth
IBW: 10 MHz at 800/850/900; 20 MHz at AWS/PCS/1800/2100/2600 FDD; 40 MHz at 2300/2600 TDD and LAA. LTE carriers: 5/10 MHz below 1 GHz; 5/10/15/20 MHz above 1 GHz; LTE TDD 10/15/20 MHz per carrier; LAA 20 MHz only
Capacity
Maximum carriers per pRRU3911: GSM 4; CDMA 4; UMTS 2; LTE FDD 3; LTE TDD 2. Wi-Fi: up to 256 associated users; throughput up to 450 Mbit/s at 2.4 GHz and 1.3 Gbit/s at 5 GHz
Chassis
Remote-radio enclosure/form factor; documented dimensions: 200 × 200 × 40 mm (H × W × D); ingress protection: IP20
Modules
High-speed interface, digital and analog signal processing; optional daughterboard Wi-Fi
Functional role
LampSite pico remote radio unit that converts/processes RF and baseband signals and connects to the BBU through CPRI over Ethernet
Architecture
LampSite distributed radio: pRRU3911 connects to RHUB by CPRI over Cat5e-or-higher Ethernet; RHUB provides PoE through CPRI_E0
Subtype
pRRU (pico Remote Radio Unit)
Details
Internal- or external-antenna versions; operating −5…+40 °C, storage −40…+70 °C, RH 5–95%, pressure 70–106 kPa; TMA and RET not supported
Connection notes
RHUB; external antenna (external-antenna execution)

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