Comparison sequence of enc_numbers

I have some questions; say I have a set or sequence of encrypted numbers outsourced to the cloud by users/clients. Now client sent an encrypted range query to the server. Now I want the server to do the computation and return the value whose range is greater or equal to (>=) given numbers (ignore the lower numbers, filtered). How can this be implemented using concrete, any library, or example code, or pseudocode that explains this setup? Also, what algorithm does it use theoretically to solve it? Any paper link to share as well? Thank you.

I’ve replied to your GitHub issue, let’s continue from there!