MaxLinear, a leading provider of wireless infrastructure solutions, showcased its growing range of commercially available Open RAN Radio Units (O-RU) based on the Sierra single-chip radio SoC at Mobile World Congress (MWC) 2026 in Barcelona.
They demonstrated several new Sierra-powered O-RUs, including the Pegatron PR2850 Macro O-RU, Samji SNOO2-44N28 Macro O-RU, and Zenlynx RRU4401S Indoor O-RU. MaxLinear also demonstrated Sierra’s Passive Intermodulation (PIM) cancellation technology, enabling development of smaller and lighter Frequency Division Duplex (FDD) Massive MIMO O-RUs.
Sierra is MaxLinear’s highly integrated radio SoC designed to power carrier-grade radio units. Available as either 8T8R or 4T4R building blocks, Sierra combines dense RF integration with advanced digital signal processing, including Digital Pre-distortion (DPD), Crest Factor Reduction (CFR), PIM cancellation, and a multi-port O-RAN 7.2x fronthaul interface to offer a complete solution for more compact, power-efficient, and scalable radio designs across a wide range of deployment scenarios.
Sierra’s advanced DPD significantly improves PA energy efficiency while meeting spectral emission masks with margin, enabling OEMs to develop smaller, lighter, and more power-efficient radio units.
Key Solutions to be on Display at MWC 2026
- Pegatron PR2850 Macro O-RU: Pegatron 5G’s latest carrier-grade macro radio for Open RAN deployments is purpose-built for performance and flexibility. The PR2850 combines high output power, TDD and FDD multi-band support, and advanced MIMO capabilities. Enabled by MaxLinear’s Sierra Radio SoC, the PR2850 delivers high performance in an ultra-compact form factor with low power consumption, helping accelerate the global adoption of open, intelligent, and sustainable 5G networks.
- Samji SNOO2-44N28 Macro O-RU: Samji’s next-generation macro O-RU is powered by MaxLinear’s Sierra Radio SoC, delivering exceptional RF performance while maintaining very low power consumption to support cost-effective network deployments. MaxLinear is hosting a live demonstration of the SNOO2-44N28 at MWC 2026.
- Zenlynx RRU4401S Indoor O-RU: The RRU4401S addresses the growing demand for high-performance, energy-efficient indoor coverage. Zenlynx designed its new indoor O-RU around a highly integrated radio architecture that prioritizes for compact form factor, very low power consumption, and deployment flexibility. By leveraging the Sierra single-chip radio platform, Zenlynx can deliver an indoor radio solution optimized for enterprise, venue, and neutral-host environments where scalability and operational efficiency are critical.
Click here to learn more about MaxLinear's Sierra Radio SoC.
