METIS is the EU flagship 5G project with
the objective of laying the foundation for 5G systems
and building consensus prior to standardization.
The METIS overall approach toward 5G
builds on the evolution of existing technologies
complemented by new radio concepts that are
designed to meet the new and challenging
requirements of use cases today’s radio access
networks cannot support. The integration of
these new radio concepts, such as massive
MIMO, ultra dense networks, moving networks,
and device-to-device, ultra reliable, and massive
machine communications, will allow 5G to support
the expected increase in mobile data volume
while broadening the range of application
domains that mobile communications can support
beyond 2020. In this article, we describe the
scenarios identified for the purpose of driving
the 5G research direction. Furthermore, we give
initial directions for the technology components
(e.g., link level components, multinode/multiantenna,
multi-RAT, and multi-layer networks
and spectrum handling) that will allow the fulfillment
of the requirements of the identified 5G
scenarios.