in video conferencing over a radio network , the radio equipment is a major power consumer especially in cellular networks such as lte . in order to reduce the radio power consumption in video conferencing , it is important to introduce an enough radio inactive time . several types of data buffering and bundling can be employed within a reasonable range of latency that doesn &# 39 ; t significantly disrupt the real - time nature of video conferencing . in addition , the data transmission can be synchronized to the data reception in a controlled manner , which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as lte c - drx .