Not only did Nokia lose the OpenRAN business to Ericsson, but they also lost the Radio Unit (RU) business to Fujitsu. A double whammy!
How and why AT&T selected Fujitsu radios for 5G
AT&T plans to buy 5G radios from Fujitsu as part of its bigger contract with Ericsson. That's a major step forward for Fujitsu, which is relatively unknown outside its home market of Japan.
https://www.lightreading.com/open-ran/how-and-why-at-t-selected-fujitsu-radios-for-5g