Framework for spectrum authorization elements and its application to 5G micro-operators

The fifth generation (5G) networks are expected to deliver high quality services to human and machine type users in specific locations. The recently proposed micro-operator concept aims at efficient and reliable local service delivery to complement traditional mobile network operators (MNOs) whose main objective has been to provide country-wide coverage. The uptake of 5G micro-operators requires local spectrum availability. In this paper, we propose a general framework for spectrum authorization and apply it in the recent micro-operator concept to develop local spectrum micro licensing model. To do this, we first identify the elements of a spectrum authorization model, and derive their interrelations to form a general framework for spectrum authorization. Then, we analyze the elements of the state-of-the-art spectrum authorization models including case examples of exclusive licensing, three-tier model for providing citizens broadband radio services (CBRS), and license-exempt model. Using the framework and the state-of-the-art models, we then propose and characterize the elements of the new micro licensing model to establish local 5G networks. Furthermore, our comprehensive investigation on the new micro licensing model supports to establish the micro-operator concept as a candidate solution for delivering localized 5G services. The proposed framework and its application to 5G micro-operators help to promote new market entry, encourage competition and innovation, and incentivize investment by facilitating the regulator to efficiently allocate 5G bands to the stakeholders.