SoftBank Corp.’s AI-RAN Realizes “Software-only Massive MIMO” on GPU

SoftBank Corp. today announced that it has successfully achieved radio signal processing using Massive MIMO and demonstrated 16-layer MU-MIMO (Multi‑User Multiple Input Multiple Output) downlink (DL) in an outdoor environment using its AI Radio Access Network (AI-RAN) product “AITRAS,” installed at NVIDIA’s campus in Santa Clara, California. The demonstration was achieved by building an AI-RAN that executes radio signal processing entirely in software on NVIDIA’s graphics processing unit (GPU).

Read the full press release here.
https://www.softbank.jp/en/corp/news/press/sbkk/2025/20251029_02/