The Huawei BTS3900 is a next-generation, modular macro base station developed as part of Huawei’s SingleRAN solution. It supports multiple radio access technologies including GSM (2G), UMTS (3G), LTE (4G), and is also designed to be upgradeable for NR (5G) integration, making it one of the most future-ready platforms in Huawei’s RAN portfolio. The BTS3900 serves as a key component in dense urban, suburban, and even rural deployments where high capacity, flexible configuration, and simplified site installation are priorities.
One of the main advantages of the BTS3900 is its distributed architecture, separating the baseband unit (BBU) from the remote radio units (RRUs), enabling more flexible deployment strategies and easier adaptation to site-specific conditions. The platform also supports centralized baseband pooling, reducing the total number of baseband units needed across a site cluster. With full IP-based transport, high processing power, and multi-carrier capability, the BTS3900 is built to handle high traffic loads and rapid technological evolution.
As part of Huawei’s strategy for network convergence and energy efficiency, the BTS3900 uses advanced cooling, power control, and intelligent software to reduce operating costs. It remains widely deployed in both mature and emerging markets and continues to be supported by operators who value its reliability and upgrade potential. Carritech supports network operators using the BTS3900 by sourcing tested BBUs, RRUs, transmission modules, and other critical components through a trusted global supply chain.
Multi-RAT Capability: Simultaneous support for GSM, UMTS, LTE, and evolution toward NR (5G-ready when used with compatible BBUs and RRUs).
Distributed Architecture: Baseband and radio units can be deployed separately, enabling efficient use of space and optimal antenna placement.
Flexible Transport: Full support for IP-based backhaul and fronthaul, reducing reliance on legacy TDM infrastructure and enhancing scalability.
Centralized Baseband Pooling: Multiple cells can share processing resources, enabling more efficient use of baseband hardware and reduced power consumption.
Advanced RF Performance: High-output, multi-band RRUs support MIMO, carrier aggregation, and advanced modulation schemes for improved throughput and coverage.
Compact, Modular Design: Small footprint and scalable configuration allow for easy deployment in both existing and greenfield sites.
Energy-Efficient Operation: Intelligent power management, passive cooling options, and sleep mode capabilities reduce operational expenses.
High Availability: Designed with redundancy in mind—supports dual power feeds, redundant links, and carrier-grade uptime standards.
Supported Technologies:
GSM/EDGE (2G)
UMTS/HSPA+ (3G)
LTE/LTE-A (4G)
5G NR (limited support with appropriate upgrades)
Deployment Modes:
Distributed BTS: BBU + multiple RRUs
Centralized BBU pool (supports multiple sectors/sites)
Outdoor or indoor cabinet installations
Frequency Band Support:
Full range including 700 MHz, 800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz
Specific bands depend on RRU configuration and region
Baseband Unit (BBU3900/BTS3900 chassis):
Supports multiple baseband processing boards
Each BBU can handle multiple sectors/carriers
Upgradable to support additional RATs and MIMO layers
Remote Radio Units (RRUs):
Available in single-, dual-, and tri-band configurations
Supports up to 4×4 MIMO and carrier aggregation in LTE
Deployed close to antennas to reduce feeder loss
Transmission Interfaces:
IP (Fast/Gigabit Ethernet, optical)
Supports CPRI and OBSAI for fronthaul
GPS and 1588v2 synchronization support
Power Supply:
-48 VDC
Dual-feed supported
AC power supported via rectifier integration
Cooling System:
Fan-based active cooling for BBU
Passive or active RRU cooling depending on model and deployment
Designed for high-temperature environments
Environmental Specifications:
Operating temperature: –40°C to +55°C (RRUs)
Humidity: 5% to 95% non-condensing
IP65-rated RRUs for outdoor use
Management & O&M:
Compatible with Huawei U2000 and iManager platforms
SNMP, CLI, and proprietary management protocols
Remote configuration, monitoring, and software upgrades
Compliance & Certifications:
3GPP Release 8/9/10 compliant
EMC, RoHS, CE certified
ITU-T timing and transport standards
| Time Period | Brand / Company | Role / Notes |
|---|---|---|
| 2011 – 2017 | Huawei Technologies Co., Ltd. | Huawei released the BTS3900 as a successor to the BTS3800, offering better modularity, IP integration, and support for multi-RAT deployments. It became the global standard for Huawei SingleRAN projects. |
| 2017 – Present | Huawei (Ongoing support) | The BTS3900 remains a widely supported product within Huawei’s portfolio, though newer platforms like BTS5900 have taken the lead in 5G deployments. The BTS3900 continues to be used in hybrid 2G/3G/4G networks. |
| Present (Secondary Market) | Independent Resellers & Support Specialists (e.g., Carritech) | Carritech sources, tests, and supplies BTS3900 BBUs, RRUs, transmission modules, and associated accessories to extend the lifecycle of operator networks relying on this proven platform. |
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