Alcatel-Lucent RRH4X40-1900 Remote Radio Head

The Alcatel-Lucent RRH4X40-1900 is a high-capacity remote radio head designed for LTE networks operating in the 1900 MHz PCS band. Featuring four independent 40W power amplifiers, this RRH delivers 4x4 MIMO and 4T4R capabilities, enabling massive data throughput and superior spectral efficiency for dense urban and suburban environments.

Exceptional RF Power and MIMO Performance

With 4x40W output, the RRH4X40-1900 provides substantial downlink coverage and capacity. The 4x4 MIMO configuration allows for up to four spatial streams, effectively doubling throughput compared to 2x2 systems. The integrated multi-antenna solution supports beamforming and transmit diversity, improving signal quality and reducing interference.

CPRI and Fiber Transport

Connectivity to the baseband unit is established via CPRI over single-mode or multi-mode fiber, with support for both 1.2 and 2.4 Gbps line rates. The RRH includes built-in fiber optic transceivers and a wavelength division multiplexing (WDM) option for single-fiber operation, reducing cabling complexity. Synchronization is maintained via IEEE 1588v2 or SyncE, ensuring tight phase alignment for LTE-TDD and MIMO.

Rugged Outdoor Construction

Housed in an IP68-rated enclosure, the RRH4X40-1900 can withstand immersion in water up to 1.5 meters and operates in temperatures from -40°C to +60°C. The unit uses forced-air cooling with variable speed fans, keeping components within safe limits while minimizing noise. Its lightweight magnesium housing facilitates top-mast or side-mounted installation.

Advanced Radio Features

The RRH supports carrier aggregation (CA) and inter-band CA, allowing multiple 1900 MHz carriers to be combined for higher peak data rates. It also includes an integrated tower-mounted amplifier (TMA) for low-noise uplink reception and digital pre-distortion (DPD) to linearize the PA, achieving high efficiency (greater than 45%). The unit offers 20 MHz channel bandwidth per carrier, upgradable to 40 MHz with software.

Energy Management and Green Design

Dynamic power scaling adjusts output power based on traffic demand, reducing energy consumption during off-peak hours. The RRH also features a sleep mode for idle periods, saving up to 30% energy compared to constant output. Compliance with Energy Star and ETSI environmental standards ensures a sustainable network deployment.

Management and Fault Detection

Managed via the Alcatel-Lucent 5620 Service Aware Manager, the RRH provides real-time statistics on power, temperature, and VSWR. Automatic fault detection and alarm correlation allow rapid troubleshooting. Remote software upgrades and configuration changes can be performed over the CPRI link, reducing site visits.

Deployment Scenarios

Ideal for high-density urban areas, sports stadiums, shopping centers, and large office campuses, the RRH4X40-1900 can also be deployed in suburban macro-cellular networks to increase capacity. Its 4x4 MIMO makes it a key component for LTE-Advanced Pro and 5G-ready networks.

Conclusion

The Alcatel-Lucent RRH4X40-1900 sets a benchmark for high-performance remote radio heads, combining massive MIMO, robust environmental sealing, and efficient power amplification. It enables operators to deliver superior mobile broadband experiences while optimizing operational costs.