When will we know whether Rakuten Mobile’s Open RAN strategy has been a success and an indicator of Open RAN maturity?

Operationally, we have already seen success in the accelerated rollout of 275,000 cells with very few people operating the network. This is possible because they’re not directly operating the network. They’re using a software platform, Symworld, to create that hyper-scale.

We have proven that cloud-based, fully virtualized software-centric mobile networks are absolutely possible to implement in highly dense coverage areas as well. For example, Tokyo is one of the most highly densely populated markets in the world and we are serving this demanding region with an Open RAN solution.

Rakuten Mobile network performance recognized by independent review

Rakuten Mobile’s network in Tokyo receives “very good” rating from independent analyst firm umlaut.

Source: umlaut – 2022/04 Audit Report – OpenRAN Network Rakuten Mobile Japan

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In a detailed conversation with Rakuten Symphony’s Geoff Hollingworth, this article explores how Rakuten Mobile’s Open RAN rollout defied industry skepticism and set a new bar for telecom transformation. With over 275,000 cells deployed and just 250 staff, Rakuten’s software-centric model shows how cloud-native, virtualized networks can scale—offering key lessons for both greenfield and brownfield operators.
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