Electromagnetic compatibility and Radio spectrum Matters (ERM); System Reference Document; Short Range Devices (SRD); Technical characteristics for SRD equipment using Ultra Wide Band Sensor technology (UWB); Part 7: Location tracking and sensor applicati
"The present document covers a system description and the corresponding spectrum requirements for devices using UWB radio technology operating in the frequency range from 3@1 GHz to 4@8 GHz and from 6 GHz to 8@5 GHz which are in automotive or public transportation environments (e.g. installed in road and rail vehicles). The operating radio link distance is limited typically to a maximum of about 30 meters@ whereby some application scenarios show challenging operating conditions which impose the requirements stated in the present document. Some applications described in the present document will enhance the safety of the passengers@ but these applications are not safety critical. UWB based applications under the scope of the present document typically rely on small@ cost and energy effective@ lightweight tags/sensors which are attached inside or outside the vehicle@ to objects or parts of the vehicle to be monitored@ or are explicitly carried by passengers. They may also form an integral part of portable electronic equipment carried by passengers (such as future generation mobile phones equipped with an additional UWB air interface). They are connected to one or more ""reference stations""@ also in the scope of the present document@ placed inside the vehicle@ which collect the data and communicate@ when needed@ via a UWB signal to the tags/sensors. The present document includes necessary information to support the co-operation between ETSI and the Electronic Communications Committee (ECC) of the European Conference of Post and Telecommunications Administrations (CEPT)@ including: ?Detailed market information (annex A). ?Technical information (annex B). ?Expected compatibility issues (annex C)."