KDDI’s Open RAN network now includes MU-MIMO

Japanese operator KDDI is ramping up its Open RAN activities ahead of a full-scale rollout in 2024.
The company switched on its first Open RAN site in Kawasaki last February. On Tuesday, KDDI announced it has begun lighting up Open vRAN sites on its commercial 5G network in Osaka City. They use Samsung’s virtualised central unit (vCU) and virtualised distributed unit (vDU), and Fujitsu massive MIMO radio units. General-purpose servers are being used for the vRAN software and virtualised co