The transition process from one network setup to another needs the reconfiguration of particular resources, or the coordinated reconfiguration of groups of resources, or even of the whole network. When traffic demand decreases, the transition process may include, e.g., switching off particular micro-/pico-cells, transferring a sectorized base station to an omnidirectional one, or increasing cell coverage by adapting the antenna tilt. When traffic demand increases, the transition process may include, e.g., switching between various MIMO functionalities, or directing adaptive antenna arrays towards traffic hotspots. Beyond the analysis of the above options, other issues are at stake, like developing new network management concepts for dynamic reconfiguration of mobile networks, including self-optimization, self-configuration and standbyoperation.