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KDDI takes conventional approach in land of new 5G architectures

Japan has not been in the first wave of commercial 5G nations, by contrast with previous network generations, but its operators are pursuing innovative approaches to their build-outs, and driving the shift towards open, multivendor and cloud-based networks. Rakuten, the new entrant, is famously deploying a cloud-native RAN and core for 4G and 5G, while NTT Docomo recently switched on its first RAN (pre-commercial as yet) based on Open RAN interfaces. Softbank – always a pioneer of small cells and other creative approaches to 4G roll-out and economics – is now far more than an operator, as its parent group increasingly invests, through the Vision Fund, in many of the technologies, such as AI and quantum computing, which may drive…

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