NR-U or LTE-LAA

Hi Experts,

Has anyone worked on or is working on uplink NR-U or uplink LAA feature? I wanted to understand if there is any commercial modem available or under development for either LTE or NR that supports uplink NR-U or LTE - LAA. I am aware that downlink NR-U and downlink LAA feature is supported by some phones in the USA.

Any information in this regard is highly appreciated.

Best regards,
Sushil