연세 애 널 스 모바일 사이트 , The Rise of the 5 G Era 
 홈 Regular FeaturesLightbulbThe Rise of the 5 G Era 기사 승인 2017 . 03 . 09 17 : 22 : 54 - 작 게 + 크 게 	 공유 	 공유 하 기 
 - How will 5 G mobile network change our lives ? 5 G . CO . UK 
 IN THE summer of 2011 , the 4 th generation mobile network " Long Term Evolution ( LTE ) " went on the market for the first time in South Korea . Since then , mobile networks have been upgraded almost every year from “ LTE - A , ” to “ broadband LTE ” , and recently to the “ 3 - band LTE ” . In 2011 , the maximum data download speed was 75 megabits per second ( Mbps ) . Now the speed reaches 300 Mbps , a data rate that can download an entire movie in about 20 seconds . While the term LTE is finally becoming familiar to the public , the telecommunications industry is already talking about yet another term — 5 th generation mobile network ( 5 G ) . Taking the industry on a journey 
 Trusted Review * defines 5 G as the forthcoming 5 th generation of mobile network technology . Wireless phone technology technically started with 1 G in the early 1990 s . It expanded to 2 G when industries first started enabling people to send text messages between two cellular devices . Eventually the world moved on to 3 G , which gave people the ability to make phone calls , send text messages , and browse the internet . With the emergence of smartphones , 4 G technology was developed and enhanced . The data rates of 4 G technology is about 4 to 5 times faster than that of 3 G technology . 
 5 G is a new network system that has higher speed and capacity , with a much lower latency time than existing cellular systems . Not only does it allows people to make calls and browse the web , but also expands connectivity density and thedata rate exponentially . For instance , 5 G will make it easier for people to download and upload Ultra HD and 3 D videos with high data volume . Also , it will make space for thousands of internet - connected devices to enter people ’ s everyday world . The 5 G systemhas been designed especially in consideration of the end - to - end latency time . End - to - end latency is the amount of time it takes between one ’ s action and the response showing up on the screen . In the future , a variety of real - time interactive multimedia services such as Augmented Reality ( AR ) , Virtual Reality ( VR ) , and real - time online games services will increase . In order to use these services and experience the natural interaction of 5 G technology , it is necessary to provide the low - latency time of 5 G system services . In general , the auditory information that a person senses when he or she receives audiovisual information through the media should be delivered within about 100 ms , and the visual information should be delivered within an allowable delay time of about 10 ms . 5 G technology will increase the authenticity of technologyservices as its latency time is less than 1 ms . The necessity of the 5 G network 
 One of the major reasons why 5 G will inevitably emerge is the need for more capacity in order to accommodate Internet of Things ( IoT ) devices . According to the Kaspersky Lab , it is predicted that every household will soon have more than one hundred " smart " connected devices that can be connected to other appliances , such as refrigerators and TVs . This approach is called the Massive Multiple Input , Multiple Output ( MIMO ) which indicates a client device that simultaneously connects to a number of transceivers . The cumulative bandwidth , which helps to cope with the fast data volume growth , will be several dozen Gigabits per second ( Gbps ) for uses of sufficient quantity and quality amongnumerous devices , especially when located indoors , where the majority of connected devices tend to be . 
 Additionally , economic growth is expected due to the revival of additional industries that deal with internet security and hacking issues . Michael Nunez , the technology editor of Gizmodo , noted that the higher connectivity of the 5 G system also has sparked a boom in data security industry . As the high connectivity of 5 G systems requires continuous access between internet - based data centers and personal devices , the possibility for criminals to hijack data or hack a device also increases . Nunez addedthat due to these data safety issues , the 5 G system will activate such data security industry . 
 When 5 G , the fifth generation of wireless communications technology , arrives in 2020 , engineers expect that it will be able to handle about 1000 times more mobile data than today ’ s cellular systems . It will also become the backbone of the IoT , linking up fixed and mobile devices — refrigerators and cars alike — becoming part of a new industrial and economic revolution . Therefore , more interest in 5 G is needed to keep in sight of the economic and technological benefits in sight . 
 * Trusted Review : A publication that reports expert reviews of thelatest scientific and technological innovations . Kim Ji - hye janejihyekim @ yonsei . ac . kr < 저작권자 © 연세 애 널 스 무단 전재 및 재 배포 금지 > 	 default _ news _ ad 3