Ericsson (NASDAQ: ERIC) AIR 3255 Massive MIMO antenna-integrated radios are operating live in Japanese communications service provider (CSP) NTT DOCOMO, INC’s.("DOCOMO") 5G network. Covering the 4.5 GHz band, the new radios will help to meet current and future 5G network traffic needs in areas with high traffic congestion and demand.
Live AIR 3255 network operations began in December 2025 to help DOCOMO deliver the high‑quality network experience its customers expect.
Powered by the latest Ericsson Silicon, the AIR 3255 Massive MIMO radio delivers 25 percent lower energy use, and 20 percent reduction in embodied CO2 footprint, compared to the previous generation.
At just 13kg, the unit is 20 percent lighter than the previous generation, further easing deployment in high-traffic locations. Customer network connectivity experiences will also be enhanced by advanced unit features such as multi-user MIMO – which delivers throughput regardless of network congestion.
The Ericsson AIR 3255 will also enable spectrum to be used more efficiently as data traffic grows. Working with DOCOMO’s current 3.7 GHz-band Massive MIMO 5G radios, it will also make the network more flexible and reliable.