Open RAN may be the headline theme of the industry right now, but the big players are duking it out in a technology where they feel relatively unchallenged by new entrants – in large-scale Massive MIMO radio/antenna units for 5G. Nokia presented its latest 5G Massive MIMO product, which is the first to use its new generation system-on-chip (SoC), as the proof its 5G comeback, after some disastrous mistakes, mainly related to the chipset, that cost it customers and a CEO in 2019-2020. Operators have deployed higher grades of MIMO antenna arrays at a faster rate than was forecast a few years ago, to increase 5G range and performance. In particular, the technology has allowed them to use the same…