What is CRRM (Common radio resource management)?

Common radio resource management strategies are intended to proficiently distribute traffic between the accessible radio access technologies while giving satisfactory nature of service levels under heterogeneous traffic situations. This proficiency relies on how to develop its functionalities. There exist a range of opportunities for the arrangement of functionalities that a CRRM entity might undertake, which predominantly rely upon the two factors: CRRM element is used to make radio resource management decisions and the level of interactions between RRM and CRRM entities.