Fujitsu has announced that its O-RAN compatible 5G Radio Unit has been selected by KDDI (au) for the construction of virtualised base stations for 5G commercial services in Japan, with planned delivery in the second half of FY 2021. In a press release the vendor outlined that its 5G Radio Unit takes advantage of ‘O-RAN standard specifications for fronthaul interface for communication with base station controllers (CU: Central Unit/DU: Distributed Unit)’. It claims that this design makes it possible ‘to establish a flexible network with an O-RAN configuration by connecting base station controllers between different vendors that comply with this specification’. Further, it goes on to note that: ‘Fujitsu will make miniaturisation and low power consumption a reality for Radio Units that utilise highly-efficient, wide-band power amplification technology. Mounting more antenna elements than conventional MIMO (Multi Input Multi Output) technologies enhance the effects of beamforming and spatial multiplexing and will ultimately help to deliver seamless, speedy mobile communications for users in places where many people gather.’
Commenting on the deal, KDDI executive officer Toshikazu Yokai said: ‘KDDI aims to provide flexible end-to-end network slicing services with 5G network. We expect that Fujitsu’s Radio Unit that is O-RAN compliant will contribute significantly to the realisation of this plan’.