The European flexible DAA approach towards an open UWB regulation

After an initial regulatory framework for Ultra Wide Band (UWB) devices in Europe has been established in 2006 [3] by the CEPT additional work started in order to extend the usable band for UWB devices in Europe using active and passive mitigation techniques. In an initial step the passive Low Duty Cycle (LDC) mitigation techniques has been introduced in the band 3.4 GHz to 4.8 GHz in December 2006 [6] covering UWB devices for positioning and low data rate communication applications. In order to be able to accommodate high data rate UWB devices in the band 3.1 GHz to 4.8 GHz and the band 8.5 GHz to 9.0 GHz active mitigation techniques based on Detect and Avoid (DAA) are required to protect the potential victim services like radio navigation services and broadband wireless access services, in these bands. Based on this requirement the CEPT TG3 group on UBW regulation in Europe has defined a new flexible DAA mitigation technique for UWB devices operating in the bands 3.1 GHz to 4.8 GHz and 8.5 GHz and 9.0 GHz. The resulting regulation will be published end of 2008 as official ECC decision on UWB devices using DAA [7]. In the scope of ETSI ERM TG3 la and the Special Taskforce on DAA UBW devices (STF- 250) the work on a harmonized standard has started recently [8].