Alcatel-Lucent 849144415 KS-24829L1 Remote Radio Head (v1.4)

The Alcatel‑Lucent 849144415 KS‑24829L1 (also identified as KUNRRL002001 and KWLTXSR) is a Remote Radio Head (RRH) designed for modern wireless base stations. This outdoor, tower‑mounted unit houses the RF transceiver, power amplifier, and filtering stages, enabling the baseband unit (BBU) to be located remotely via fiber optic links. The RRH supports high‑power transmission and sensitive reception for LTE and 5G networks, significantly reducing feeder losses and improving overall system performance.

Overview

Version 1.4 of this RRH incorporates advanced digital predistortion (DPD) and crest factor reduction (CFR) techniques to maximize amplifier efficiency while maintaining linearity. It is capable of operating in multiple frequency bands, making it suitable for multi‑standard deployment. The unit interfaces with the BBU through a CPRI (Common Public Radio Interface) optical connection, carrying both user data and control signals. Its ruggedized enclosure is IP67 rated, ensuring reliable operation in extreme weather conditions.

Key Features

• Multi‑band support (e.g., 700 MHz, 850 MHz, 1900 MHz, 2600 MHz)

• High output power: up to 40 W per carrier (depending on band)

• Integrated duplexer and band‑pass filters for excellent selectivity

• CPRI link with up to 9.8 Gbps data rate (option 7/8)

• Advanced DPD and CFR for high efficiency (> 45% at peak power)

• Built‑in VSWR monitoring and automatic gain control

• Remote software upgrade and configuration via management interface

• External antenna interface: 2x 7/16 DIN or N‑type connectors

Technical Specifications

• Frequency Bands: 698‑960 MHz, 1710‑2690 MHz (field‑selectable)

• Transmit Power: 40 W (46 dBm) per carrier, 2x2 MIMO configuration

• Receiver Noise Figure: < 2.5 dB

• CPRI Interface: 2x SFP+ (9.8 Gbps), line rate compatible with BBU

• Antenna Ports: 2x TX/RX (duplexed)

• Power Input: -48 VDC, 600 W max

• Cooling: Forced air with variable speed fans

• Ingress Protection: IP67

• Operating Temperature: -40°C to +55°C

• Dimensions: 380 mm (H) × 450 mm (W) × 200 mm (D) – approx.

• Weight: 18 kg

Applications

This RRH is primarily used in macro‑cell and small‑cell deployments for LTE‑Advanced and 5G NR networks. Its high output power makes it suitable for urban and suburban coverage, while its lightweight design eases installation on existing tower infrastructure. It is also used in public safety networks and private LTE systems.

Integration and Management

The RRH connects to the BBU via a single or dual fiber (for redundancy). Configuration is done through the base station management system using standard 3GPP MIBs. The unit supports remote firmware updates, gain adjustments, and diagnostic tests. Real‑time performance data, such as transmit power, reflected power, and temperature, are reported to the network management center.

Installation and Maintenance

Installation requires mounting the unit on a tower or pole using the provided brackets, connecting the antenna cables, and plugging the power and fiber interfaces. The unit includes surge protection and grounding points. Maintenance involves periodic cleaning of air filters, inspection of connector weatherproofing, and verifying fan operation. Faults are indicated by LEDs on the front panel and can be read remotely.

Conclusion

The Alcatel‑Lucent 849144415 KS‑24829L1 Remote Radio Head version 1.4 is a high‑performance, reliable component for modern distributed RAN architectures. Its combination of high power, wide band coverage, and efficient operation ensures optimal coverage and capacity for mobile operators.