Huawei UBBPe6 — Universal Baseband Processing Unit

(For BBU3900 / BBU3910 / BBU5900 Platforms)

1. Product Overview

The Huawei UBBPe6 is a universal baseband processing board (UBBP) used in Huawei BBU3900, BBU3910, and BBU5900 distributed base station platforms (DBS series).
It performs multi-standard baseband signal processing, connects to remote radio units (RRUs) via CPRI optical interfaces, and supports multi-RAT concurrent operation including LTE FDD, NB-IoT, and optionally UMTS, depending on software version and license.
The UBBPe6 is part of Huawei’s modular, software-defined radio (SDR) baseband architecture that allows flexible capacity expansion and smooth evolution to 5G.

2. Interfaces and Panel Layout

The UBBPe6 provides the same port configuration as other UBBP series boards.

Supported CPRI Data Rates: 1.25 / 2.5 / 4.9 / 9.8 Gbit/s (higher rates depend on software version).

3. Compatibility and Capacity

• Compatible Platforms: BBU3900 / BBU3910 / BBU5900

• Typical Use: Installed together with UMPT (main control board), UPEU (power unit), and FAN modules within a 2U BBU chassis.

• Multi-RAT Capability: Supports concurrent LTE FDD and NB-IoT processing; partial software versions include UMTS compatibility.

• RRU Connections: Six CPRI ports can map to multiple sectors or RRUs in flexible star or daisy-chain configurations.

• Capacity Notes:

• Actual maximum cell count, carrier capacity, and UE limits depend on software release (SRAN/eRAN version) and license configuration.

• Designed for high-performance macro and indoor deployments requiring dynamic baseband resource allocation.

4. Functional Highlights

• High Computing Performance: Enhanced digital signal processing optimized for LTE FDD and NB-IoT traffic.

• Scalable Architecture: Supports multi-board coordination via HEI (QSFP) for distributed capacity expansion.

• Flexible Topology: Star, chain, ring, or hybrid topologies for RRU connectivity.

• Energy Efficiency: Low power consumption with dynamic load-based adjustment.

• Multi-Mode Support: Software-defined operation for 4G and IoT evolution without hardware replacement.

5. Typical Application Scenarios

• Macro Base Stations (C-RAN / D-RAN): Core baseband resource unit connecting multiple RRUs to form high-capacity LTE and NB-IoT cells.

• Network Modernization: Upgrade or expand legacy 2G/3G sites to support 4G and NB-IoT using existing BBU3900/5900 infrastructure.

• Enterprise and Industry Networks: Supports NB-IoT and private LTE deployments with flexible capacity scaling.

6. Technical Specifications

7. Identification and Ordering

8. References

• Huawei CBSS 8.0 Product Overview — UBBP interface and CPRI rate specifications.

• Huawei BBU3900/5900 Hardware Description — board configuration, slot compatibility, and software dependencies.

• Huawei Training and Channel Documentation — confirms PN 03057157 and RRU interface specifications.

• Huawei Distributed Base Station (DBS) Technical Manual — defines multi-RAT and expansion principles.