  The evolution of mobile wireless systems into Heterogeneous Networks, along
with the introduction of the 5th Generation (5G) systems, significantly
increased the complexity of radio resource management. The current mobile
networks consist of a multitude of spectrum bands, use cases, system features,
licensing schemes, radio technologies, and network layers. Additionally, the
traffic demand is uneven in terms of spatial and temporal domains, calling for
a dynamic approach to radio resource allocation. To cope with these
complexities, a generic and adaptive scheme is required for the efficient
operation of Heterogeneous Networks. This article proposes to use a
hierarchical and modular framework as an approach to cover the mentioned
challenges and to generalize this scheme to different network layers. The
proposed management solution is based on three main components: specialized
solutions for individual requirements, exposed to the coordination layer,
through abstraction middleware. In this approach, new items can be added as
plugins.
