  A simple parton cascade model for the ultra-relativistic nucleus-nucleus
collisions is proposed to investigate the Pauli blocking at the transition from
hadronic to partonic state, i.e. QGP. A boost invariant study of the Pauli
blocking is implemented in the Monte Carlo simulation for the first time. It
turns out that the higher reaction energy the stronger the partonic Pauli
effect is. It amounts to about ten percent at SPS and RHIC energies but nearly
reaches twenty percent at LHC energy. Thus the effect is relevant to the
formation and evolution of the quark-gluon plasma.
