Mavenir boasts involvement in 5G Open RAN smart city in Thailand Value of Open RAN investments set to double year-on-year in 2021 Open RAN investments are growing faster than expected, with network operators in the Asia-Pacific region responsible for a current ramp in open, disaggregated radio access network deployments, according to research house Dell’Oro, which has increased its Open RAN market value outlook to more than $500 million for 2021. Japan, of course, is a hot-spot of Open RAN activity, with Rakuten Mobile taking a predominantly open approach to its 5G networks, NTT DOCOMO introducing Open RAN elements into its mobile networks, and KDDI using Open RAN radios from Fujitsu as part of its 5G rollout.