Abstract: As per today, the mobile phone has become the major equipment which is being used by people for multiple purposes. Due to the advancements of technology, the capabilities of the mobile phone have been increased. One of the major uses of mobile phones is accessing the Internet. One of the biggest issues in mobile devices is consuming higher battery life especially when the phone is connected to internet. As more and more technology like Third Generation (3G)/Long Term Evaluation (LTE) have come with more improved data transmitting speed and none of the technologies focuses on the power consumption of the Mobile stations (MS). Unlike 3G /LTE the Worldwide Interoperability of Microwave Access technology (WiMAX) provides some additional features like sleep and idle modes which will allow the base stations (BS) to suspend the connection often when needed. WiMAX is a wireless data transmission technology same as Wi-Fi but affects to a closer range. Additionally, these standards (sleep and idle) define mechanism which will enable the control of MS stations transmitting power to BS. In this research paper the research team first gives an overview of the key aspects of WiMAX, and its Media Access Control (MAC) layer and finally describes a mechanism to implement the sleep mode protocol which will highly decrease the power consumption of the MS.