In the wireless communication especially in cellular network, energy efficiency is a major concern among other issues, specifically in high-speed data network i.e. 3G/4G. A Smartphone is a widely used handheld device to surf data in 3G/4G. Unfortunately, one of the constraints of Smartphone is having limited battery backup, which always makes the user inconvenience. Increasing of battery backup is not merely a solution to increase the user experience, because the growth of mobile technology is 25% per year but at the same time battery capacity increases 10% per year; it’s not a balanced. So that the researchers essentially focus on energy efficient development to extend battery life. This paper analyzes various factors influences of power consumption and their characteristics (like RRC state transitions, inactivity timer setup and screen On/Off) and the paper also reviews the proposals of energy-aware developments through real-time measurements.

RRC State Transition, Inactivity Timers, Keep-Alive Messages, Energy Efficient Strategies, Energy aware 3G/4G

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