Power Saving by Sleep Modes in Base Station Transceivers for LTE

To reduce the power consumed in mobile base stations shows an important way to support the effort for energy reduction in communication systems. The daily operation of mobile communication networks shows especially in LTE systems a significant amount of time periods without data transmission, leading to reduced average energy efficiency. Sleep modes in base station transceivers, based on the deactivation of components and especially of the power amplifier in time slots of no signal transmission, show a significant potential to reduce the average energy consumption in base stations, demonstrated by experimental evaluations on hardware prototypes done for different traffic load conditions. #