Is it possible for you to look into adding this radio as an option in your work? For nanopc-t6

Telit LM960A18 isThe world's first global gigabit LTE module in the mPCIe (PCI Express Mini Card)

Add supportroid. for the Telit LM960A18 to Android
Telit LM960A18 isThe world's first global gigabit LTE module in the mPCIe (PCI Express Mini Card)
https://techship.com/product/telit-lm960a18-lte-cat-18-mpcie/?variant=003