Energy-efficient low-power wake signal and receiver mechanism

Recently, energy efficiency becomes more important for user equipment without continuous energy sources. To further reduce the power consumption of UE in the RRC IDLE/INACTIVE and CONNECTED state, the low-power wake up signal and receiver mechanism are studied in this paper. The article investigates the low-power wake-up signal which allows UE stay sleep during OnDuration in case there is no signals detected. Furthermore, the paper introduces low-power wake up receiver, which consumes much lower power than the legacy receiver, to reduce the power consumption. Finally, the paper demonstrates that the low-power wake-up signal and receiver can significantly reduce power consumption.