Nokia AirScale AMIA Solution
Nokia AirScale AMIA Solution: Controller and Baseband Boards for AI-RAN Upgrades
Nokia AirScale baseband is a modern 5G-Advanced baseband platform designed for mobile network operators. Fully compliant with O-RAN open-architecture requirements, this modular platform creates a clear migration roadmap toward AI-RAN and prepares existing infrastructure for the future 6G evolution. Instead of forcing operators to replace entire hardware cabinets, the platform's core philosophy focuses on investment protection through flexible, incremental upgrades.
Three Available AI-RAN Hardware Upgrade Paths
According to Nokia's official documentation, operators can select from three distinct deployment strategies to introduce AI-RAN capabilities within their networks, based on their existing site conditions and long-term planning goals.
-
AI-accelerated plug-in card upgrade (most relevant for spare-part business)
No complete chassis replacement is required for already-deployed AMIA subracks. Operators can insert a new AI-accelerated plug-in card directly into the existing AirScale installed base, including both indoor and outdoor modular solutions. This card works alongside the existing controller boards (ASIB or ASIK) and capacity boards (ABIO or ABIL), adding GPU-powered AI computing capacity without replacing the current baseband processing hardware. This is the leanest migration path to Nokia's AI-native RAN platform and preserves all prior capital investment on-site. -
Stand-alone Accelerated AI-RAN node
Deploy an extra dedicated AI-RAN processing node that runs alongside your original AirScale baseband system as a single logical base station. This approach is suitable for sites that need to scale up AI-related computing capacity without modifying existing subrack hardware. -
Cloud-native AI-RAN solution
Run virtualized RAN functions on general-purpose GPU-powered COTS servers from Nokia's ecosystem partners. This cloud-oriented deployment targets data-center-centric and fully open network environments, running the same anyRAN software as the other two paths.
All three paths run Nokia's anyRAN software, enabling a smooth, unified evolution toward AI-native 6G.
Two Main Product Lines of AirScale Baseband Portfolio
Modular Indoor Baseband (AMIA chassis system)
The well-known AMIA indoor subrack belongs to this modular baseband family. As shown in Nokia's official architecture, the standard configuration consists of:
- 1× AMIA Subrack — 3U chassis with backplane, providing high-bandwidth connectivity between plug-in units
- 1 or 2× ASIB (Common) — in slots C1 and C2, for transport interfaces and centralized processing
- Up to 6× ABIO (Capacity) — in slots B1 to B6, for baseband processing and optical interfaces with radio units
A newer generation, ASIK + ABIL, is designed for 5G high-capacity scenarios. Cross-generation mixing of ASIB and ASIK boards is not supported. Operators expand processing performance by adding or swapping these plug-in boards rather than replacing the whole unit.
Compact Outdoor Baseband
Complementary to indoor AMIA systems, Nokia's compact outdoor baseband series delivers integrated baseband hardware for macro-site and small-cell deployment scenarios. These outdoor units are mounted directly at cell-site locations without dedicated equipment rooms, expanding deployment flexibility for operators across diverse geographic conditions. The AI-accelerated plug-in card also fits into these outdoor modular solutions, providing the same investment protection and upgrade path.
Key FAQ about Modular AirScale Baseband Systems
What exactly is a baseband unit?
The baseband serves as the core computing heart of a radio station, performing all base-band signal processing tasks for your mobile network. In the industry, the modular AMIA-based system is commonly referred to as a BBU, even though Nokia's official product naming uses "AirScale baseband solutions" as the formal family title.
What does "modular" actually mean in practice?
Modular design means you can scale up total processing power incrementally by installing extra or updated plug-in cards. There is no mandatory requirement to discard and replace the complete chassis whenever higher performance is needed. This is the foundation of Nokia's investment-protection philosophy.
Why is the spare-part & replacement board market in high demand?
Because existing deployed AirScale AMIA subracks support board-level upgrades, many operators prefer to only swap out faulty or outdated internal boards. They avoid large-scale full-hardware replacement projects. This opens steady market demand for original new, used-original and refurbished replacement controller and base-band boards. All hardware including AMIA chassis, ASIB, ASIK, ABIO and ABIL plug-in boards are members of the AirScale modular baseband family.
Board-level Upgrade Service From Skyward Telecom
At Skyward Telecom, we fully understand operators' preference for board-level modernization instead of full-chassis replacement. We supply a complete selection of Nokia AirScale spare hardware for AMIA subrack upgrade and maintenance projects. Our available stock includes brand-new original units, tested used-original boards, and professionally refurbished controller & baseband plug-ins (ASIB, ASIK, ABIO, ABIL). We maintain sufficient inventory levels with reliable sourcing channels to support your network maintenance and AI-RAN migration schedules.
Get in touch for Nokia AirScale AMIA spare-part inquiry
If you are sourcing AMIA-related controller or baseband boards for your network upgrade or maintenance project, please feel free to contact us for stock checking and quotation.