The big four cellular infrastructure vendors differ significantly in their stance over Open RAN, with Nokia and Samsung the strongest advocates, while Huawei is the most antagonistic and Ericsson somewhere in the middle. They are all united, though, in being predictably dismissive of emerging Open RAN players on the grounds that they are failing to demonstrate interoperability among themselves. Certainly, that is Nokia’s line, as Tommi Uitto, head of the mobile business, accused leading Open RAN specialists of fakery in a interview at Mobile World Congress. As quoted in Light Reading, Uitto said: “We are trying to make it work but it is disappointing to see how slowly these Open RAN challengers have been able to get their act together.…