Airspan, the venerable supplier of mobile network equipment, is to go public for a second time, riding the wave of interest in Open RAN platforms. Founded in 1998 as a spin-out from DSC Communications, Airspan focused on fixed broadband wireless systems and increased its prominence when it entered the then-hot WiMAX market in 2005. However, after the economic crash of 2008, it delisted from the Nasdaq exchange in 2009, when Oak Investment Partners took a majority stake. But after a period of falling revenues and of losses, it is experiencing growth again, and sales are expected to rise by as much as 47% in 2021. This time it is not going public via a traditional IPO but using a mechanism…