2018年12月英语六级作文预测：5G的详细介绍及前景展望
英语六级频道考后发布英语六级真题及答案，同时新东方实力师资团队将对英语六级真题答案做权威解析，免费领取【大学英语六级真题解析】课程。更多2018年12月英语六级听力真题答案、英语六级作文真题范文、英语六级阅读真题答案、英语六级翻译真题答案，请查看【2018年12月英语六级真题答案解析】专题。预祝大家高分通过大学英语六级考试!
2018年12月英语六级真题及答案大汇总题型英语六级作文真题范文英语六级翻译真题答案英语六级听力真题答案英语六级阅读真题答案英语六级真题解析汇总英语六级真题答案下载6月末的时候，中国移动公布了5G网络的推出时间表，我们的手机网速终于要再一次飞天啦。根据这个时间表，他们今年会在5个城市启动5G的外场测试，2018年开始规模试验，而到2020年就能全面开始商用了。
话说，从3G和4G开始，我们对这种起名方法就已经不陌生了。不过，大家都知道这个G到底是什么意思吗?3G、4G、5G又分别是什么呢?今天就让小编来科普一下这个吧~
首先，这个 G 代表的是 Generation(一代)5G 的全称是 5th generation mobile networks，也就是“第五代移动网络”。然后，5G 和 4G 相比，除了速度更快以外，它还能容纳更大的用户密度(user density)换句话说，扎堆上网拖网速的现象会减轻很多。而且它支持一种叫“设备到设备通讯”的技术：Device-to-Device Communication(D2D)3G、4G网络里，所有的设备之间，如果要传递信号，这些信号都需要经过中转站。而 5G 里面则可以通过这种 D2D 技术直接传，这也是它的速度得以进一步提升的原因之一。
参考范文：
5G的详细介绍及前景展望
目录
1 2
The development of mobile communication technology What is 5G? Why do we need 5G?
34
Research status and challenges of 5G.
1
The development of mobile communication technology
The development of mobile communication technology
Digital mobile communication system Broadband access and distribution network system
1G
Simulation of mobile communication system
3G
multimedia mobile communications system
2
What is 5G?
01 An English abbreviation
5G is the English abbreviation of “The fifth generation mobile communication technology”
An English abbreviation
converged
02 UNE
Compared with 2G, 3G and 4G, 5G is not independent and brand-new. It is a combination and further development of present mobile communication technology.
03 A green energy network
network
Besides the speed upgrade, 5G will also meet the requirements of large bandwidth, super high capacity, super dense site, super high reliability and whenever and wherever possible access.
A green energy network
Some details about 5G
3
Why do we need 5G?
Mobile communication has profoundly changed people's life, but people's pursuit for higher performance of mobile communication has never stopped.
In order to cope with the future of mobile data traffic explosive growth, the connection of massive device, the continuous emergence of various new services and applications scene, the fifth generation mobile communication (5G) system will emerge as times require.
The necessity of 5G
Why does the vision of 5G emerge?
5G will make information break through the limitation of time and space, providing excellent interactive experience and immersive information feast for the user. Through the seamless fusion way, 5G will close the distance of all things, realize the intelligent interconnection between man and all things on earth.
5G will provide the access rate of fiber like, the using experience of “zero delay”, the ability to connect billions of devices, super high flux density, super high connection number density , super high mobility and other multi scene favorable service and intelligent optimization of business and user perception. At the same time, 5G will bring the network over a hundred times the energy efficiency and ultra hundred times the bit cost reduction. Finally 5G will realize the general hope of “Get the information whenever you want and all things on earth are at your fingertips”.
4
Research status and challenges of 5G.
To meet the demand of 5G, breakthrough in air interface technology is necessary. But innovation in network architecture is also significant and necessary so as to realize the vision of 5G.
Centralized or distributed network architecture The dividing line of access network and the core network
To realize network construction or function configuration
Part1 Five opening problem on designing 5G network architecture
The influence of NFV and SDN
IMT-2020 (5G) architecture is evolution or revolution
Part 02 Integration of 5G and Wi-Fi
An general introduction of Integration of 5G and Wi-Fi
The integration network of 5G and Wi-Fi can well solve the problem of rapid growing wireless traffic and user experience pursuit in 5G. Integration of multi-radio access technology, multiple needs and multiple internet were studied to become the inevitable trend for IMT 2020 (5G).
In the networking of 5G and Wi-Fi, integration of network application scene and fusion networking technology were introduced to be the inevitable demand, nosense authentication, network security, green communication were proposed to become the key technical indications.
Integration of
networking
technology route
Integrate Wi-Fi into mobile communication network as a wireless technology under the circumstance of integration of a variety of cellular network. To realize the multiple access mode of core network with other cellular technology
no-sense authentication, network security, green communication were proposed to become the key technical indications.
key technical indications
Some challenges
To work well in a multi service environment with seamless handover technology ? Interference suppression technology ? Automatic adaptation technology ? Security problems. Seamless docking of secure protocol when integrating 5G and Wi-Fi.
Part 03 Security vision of 5G
The security key technologies
1 2 3
Large data security in 5G
Security problems brought by cloudization, virtualization and Software Defined Network, SDN
The security of mobile intelligent terminal
Researchers
THANK YOU VERY MUCH
更多内容请查看【2018年12月英语六级真题答案解析】专题
2019年6月英语六级新考季课程限时88折
活动时间：12月15日-12月17日
扫码关注服务号
>>六级答案这里最全
本文地址：http://www.dioenglish.com/writing/englishtest/cet6/72119.html
