The purpose of the study is to assist the Commission in its overall action to ensure better and timelier use of the radio spectrum resource in the EU. This is a key element of the Commission's Radio Spectrum Policy which is identified as an action under the i2010 initiative. It shall do so by: — gathering information and ideas on how to apply innovative approaches to the fundamental requirement of avoiding harmful interference between different radio systems; — analysing the current interference avoidance mechanisms which are applied in Europe and globally; — identifying concrete technical, procedural and regulatory steps to assist the EU to optimise such mechanisms in order to fully exploit the potential of wireless technologies to benefit European society.