The spectral resources available for 3G mobile networks are not sufficient to support the fast development of mobile communications, the growth of users and the creation of new services. For this reason, it is necessary to replace them with new generation mobile networks (4G), such as LTE (Long Term Evolution) networks, characterised by a higher spectral efficiency.

The Geneva Conference of 2006 (Radio Regional Conference 2006) initiated a path whose key step was the World Radiocommunication Conference 2007 (WRC 2007) and the World Radiocommunication Conference 2012 (WRC-12). To date, it is expected that in Region 1, to which Europe belongs, the upper part of the UHF band, ranging from 790 MHz to 862 MHz, originally used for television systems, will be allocated to the mobile.

In spite of this, the ongoing refarming of mobile radio frequencies alone is not sufficient to cater to new services. The switch from analogue to digital television is a fundamental step, since it allows the so-called “digital dividend” frequencies to be allocated to broadband mobile communications.

Most European countries and Italy in particular will make these resources available beginning from 2013.

In depth

FUB is a member of the so-called High Level Reflection Group on radio spectrum.

It is carrying out research on interference between DVB-T signals and broadband mobile in the UHF band.