The goal of the present project is to address and deal with one of the main limitations of the current broadband connectivity in high mobility proposed by 5G, which in fact is not tailored to transport scenarios with high density of vehicles and high speed. To deal with these topics, a novel integral architecture to manage the connectivity in mobile 5G scenarios was proposed. This architecture would be based on a mobile network solution that uses novel Moving Relay Nodes, consisting of transceivers that work simultaneously in the LTE and millimeter bands and with a management of the radio resources through Virtualized and Software Defined Radio Access networks. The proposal also included the integration and management of communications associated with services related to operations and safety in transport, mainly in the railway environment.
a) Design and development of dedicated Relays Nodes with LTE / millimetric frequency conversion as part of the integral network architecture. b) Study of the feasibility of using MU_MIMO techniques in the signals transmitted between the base stations and the Moving Relays Nodes (MRNs) and between these and the user terminals. c) Simulation and modeling of the propagation channel in the millimeter wave frequencies in railway and metropolitan environments, d) Service security and monitoring systems play a key role in rail transport environments. New techniques based on passive MIMO radars were addressed which would allow for the establishment of "perimeter" security mechanisms using LTE opportunity signals, and e) Proposal for a comprehensive architecture of the management of the radio access network (Radio Resource Management) and of the Evolved Packet Core, through Virtualized and Software Defined Access Networks.