Mobile wireless communication networks can only be modelled by a bunch of parameter functions due to many uncorrelated influence factors. A Multiscale Network Simulation Environment (MNSE) for an exact effigy of all cross correlations is needed. Existing Cross-Layer ap-proaches mostly respect only one single parameter sys-tem. The here described Multiscale Simulation Kernel based on OMNeT++ [1][2] considers the occasion scales Protocol, Radio Channel and User Mobility and pro-vides a generic interface to add other simulation tools. Today's expansion stage combines the protocol simula-tor OMNeT++, a Radiowave Propagation Simulator, a 3D environment modeler and a Mobility Simulator. On account of an asynchronous coupling architecture, the distribution of simulation load over several simulation environments is possible. The implementation ensures a synchronous data exchange between single components.