DSS capable bands

Hi Experts.
In which bands are DSS capable now for Huawei and Nokia?
Is it supporting band 40 as well?

DSS will be in FDD I guess.

I think so, but it is already planned in rel 17 I guess.

RP-202084: LTE/NR spectrum sharing in Band 40/n40

Some operators are using this band now.

Please share if you have any reference.

But in TDD what’s the meaning of DSS?
As I believe only TDD domain Sharing is most in efficient way.
And other too much complexity.