In DCI formats 2_x how does the gNodeB knows if the DCI message is transmitted successfully?

Hi Experts.

In DCI formats 2_x how does the gNodeB knows if the DCI message is transmitted successfully?

There is no ack/back procedure for them to the best of my knowledge…

dci2x should be for tpc commands if I’m not missing so power control, no need ack.

Yes I understand no need to ack.

But how can we be sure if the msg is not lost and received correctly?

It is used for power control and other things like turning of the cDRX etc in release 16+

Good question…

I need to have a look at dci2x delivery method…

Other experts can comment.