通信革命5G英文演讲讲义.docx

通信革命5G英文演讲讲义
University of Bristol Zhang Zhao Han
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Good morning, ladies and gentleman. My presentation title is “how could 5G change people’s life?”. I was wondering, did you want to touch your phone to check whether there was an incoming call when you heard the ringtone. If you did, it means the mobile phone is the very important thing in your life. And the way people communicate with each other has been changed dramatically.
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Einstein said that "I never think about the future — it comes soon enough.“ And he was right. So, I'm here to ask you to think of how the future is happening now.
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However, if we compare the wireless speed to the height in real life. From 2G to 5G, you can see them here. 2G is like a grasshopper,3G is like a border collie, and even 4G is just like a 5-story building. As the 5-srory building cannot meet our demand in real life, 4G will not meet our communication demand in nest few years. We need khalifa tower, the 5G.
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Of cause, 5G can meet our demand. Because it can provide the high speed with low latency. the rate of 10-100 Gigabitpersecond, it is 4G’s 100-1000 times. And with its ultra low latency, only 2 to 5 millisecond, it can provide the excellent user experience.
Second, International telecom organization points out that the number of connected devices wi