With the dynamic growth in ICT industry from recent years, energy demand is increasing with the demand of high data rates in mobile cellular communication. Base Stations(BSs) contribute to 80% of energy consumption of overall mobile cellular radio network. Efforts are reinforced for energy efficient system design for cellular networks concerning worldwide increase in energy costs and CO2 emissions impacting ecological balance. Under the energy efficiency incorporation studies for BSs, Sleep Modes(SMs) are discussed widely to save energy consumption by radio resources in low utilization periods by turning them off. In this thesis, a simulation study is carried out by using Advance Sleep Modes(ASMs)[1] for 5G network New Radio (NR) signaling and other IOT applications.