So I've done a bit of tiling in my houses over the year, with no issues or questions, but now I'm planning to tile a small portion of my basement....

question is... it is a concrete floor basement from 1940, in good shape with no real cracks that I can see... can i tile directly onto the conrete, or do i need to use something in between the concrete and the mortar/tile... i've seen a few things on-line but am still confused as to waht I am supposed to do.. i've always tiled inside the house before with wood subfloors and used concrete backerboard... but not sure what to do in the basement... thanks