Alcatel-Lucent RRH2X50-800 LTE Remote Radio Head

The Alcatel-Lucent RRH2X50-800 (also designated RRH2x50-800) is a state-of-the-art remote radio head designed for LTE base station deployments in the 800 MHz frequency band. This compact outdoor unit combines high-power RF amplification, advanced digital processing, and fiber-optic connectivity to extend cellular coverage and capacity in both urban and rural environments.

RF Performance and Output Power

Equipped with two independent 50W power amplifiers, the RRH2X50-800 delivers a total output of 2x50W, enabling robust signal propagation even in challenging terrain. The unit supports 2x2 multiple-input multiple-output (MIMO) technology, which significantly enhances spectral efficiency and user throughput. With an integrated low-noise receiver, the RRH maintains excellent sensitivity for uplink signals, ensuring balanced link performance.

CPRI and Network Integration

The RRH connects to the baseband unit (BBU) via a standard Common Public Radio Interface (CPRI) over fiber optic cables, allowing distances of up to 20 kilometers. This distributed architecture reduces feeder losses and simplifies site cabling. The CPRI link carries both IQ data and control signalling, with built-in synchronization mechanisms for phase and frequency alignment. The RRH supports multiple CPRI line rates, making it compatible with a wide range of Alcatel-Lucent and third-party BBUs.

Rugged Outdoor Enclosure

Designed for outdoor installation, the RRH2X50-800 is housed in an IP67-rated enclosure that protects against dust, water immersion, and extreme temperatures (-40°C to +55°C). The unit is equipped with passive and active cooling systems, ensuring reliable operation in harsh weather conditions. Its lightweight aluminium casing and compact form factor facilitate pole or wall mounting, reducing installation time and costs.

Frequency Agility and Filtering

Optimized for the 800 MHz LTE band (Band 20 and similar), the RRH incorporates advanced filtering to reject out-of-band interference and adjacent channel leakage. The digital predistortion (DPD) technology linearizes the power amplifiers, maximizing efficiency and reducing power consumption. The unit also supports frequency hopping and carrier aggregation for advanced LTE-Advanced features.

Energy Efficiency and Environmental Benefits

With a focus on green networking, the RRH2X50-800 features a high-efficiency power supply and adaptive biasing, which reduces energy consumption during low-traffic periods. Its low idle power draw contributes to operational cost savings and lower carbon footprint. The unit is also compliant with RoHS and WEEE directives, ensuring environmentally responsible disposal at end-of-life.

Deployment Scenarios

This remote radio head is ideal for small cell enhancements, macro-cell coverage, and rural broadband initiatives. It can be deployed as part of a heterogeneous network (HetNet) alongside microcells and picocells to improve indoor and outdoor coverage. The RRH also supports distributed antenna systems (DAS) for stadiums, shopping malls, and tunnels, providing seamless connectivity for large crowds.

Management and Monitoring

Alcatel-Lucent provides comprehensive management tools for the RRH2X50-800, including remote firmware upgrades, real-time performance monitoring, and fault detection via SNMP and TR-069 protocols. The unit features LED status indicators and a local maintenance port for on-site diagnostics. With its robust alarm system, network operators can quickly identify and resolve issues, minimizing service disruption.

Conclusion

The Alcatel-Lucent RRH2X50-800 LTE Remote Radio Head is a versatile, high-performance solution for modern mobile networks. Its powerful RF output, fiber-optic interface, and durable construction make it a reliable choice for expanding LTE coverage and capacity. Whether deployed in dense urban areas or remote rural locations, this RRH delivers superior performance and operational efficiency.