A UE communication device is provided having a transmitter architecture that transmits SRS transmissions and PUSCH transmissions. Conveniently the enzymes are provided by Pseudomonas fluorescens Fe3 or a mutant or derivative thereof. The schedule of synchronized events are evaluated in relation to the present time and determine whether a non-synchronized event may be transmitted without the likelihood of a collision. The difference between the first value of the parameter and the second value of the parameter is representative of the relative efficiency of the power supply.