  In this paper, we are interested in the construction of quasiconformal
mappings between domains of the Heisenberg group H that minimise a mean
distortion functional. We propose to construct such mappings by considering a
corresponding problem between domains of Poincar\'e half-plane $\mathbb H$. The
first map we construct is a quasiconformal map between two cylinders. We
explain the method used to find it and prove its uniqueness up to rotations.
Then, we give geometric conditions for the construction to be the only way to
find such minimizers. Eventually, as a non trivial example of the
generalisation, we manage to reconstruct the map from \cite{BFP} between two
spherical annuli.
