  Mobile communication technology has been rapidly evolving ever since its
first introduction in the late 1980s. The development witnessed is not just in
the refinement of the radio access techniques, but also in the progression
towards offering sophisticated features and services to the mobile phone users.
To fulfill this ever-growing user demand and market trends, frequency ranges in
millimeter wave bands are envisioned for wireless radio transmission. To
respond to this trends, the EU-funded mmMAGIC project has been launched and its
main objective is to design and develop radio access techniques operating in
6-100 GHz bands. When it comes to developing technologies for systems operating
these frequency ranges, a major challenge encountered will be in terms of its
radio access network integration. Unquestionably, issues at various aspects of
physical layer design, channel modelling, architecture, network functions and
deployment will be encountered; problems in multi-node and multi-antenna
transceiver designs will surface as well. The work carried in this project will
address those challenges and propose solutions; but additionally, measure its
efficiency against the project specific KPIs set to meet the requirements of
the operational future 5G systems. The main intention of this paper is to
outline some of the challenges, more specifically to highlight the network
integration challenges, and discuss some of its technical solutions. The
primary purpose here is to focus towards integrated 5G technology, thereby
opening further research avenues for the exploration of new and alternate
frequency bands in the electromagnetic spectrum.
