Quality of service provision and capacity expansion through extended-DSA for 5G

This paper presents the vision and some early results achieved by the EU-funded SPEED-5G project which is part of 5G PPP [1]. It addresses some key challenges of future 5G systems, i.e. a 1000 times higher capacity, a much lower latency and a much improved user quality of experience compared to currently deployed networks. The devised new technologies are based on densification of small cells, exploitation of Multi-RAT (Radio Access Technology), development of new resource management techniques and a more efficient use of spectrum. A novel 5G system architecture is proposed based on both the Network Slicing paradigm, which enables a highly flexible, scalable and backwards compatible architecture, and a new Media Access Control (MAC) layer that facilitates Multi-RAT access and allows prioritising and allocating traffic across heterogeneous access technologies.