Benefits And Challenges Of 5G Technology
After the domestic and foreign manufacturers showed their progress on 5G in 2015, 5G instantly became the focus of discussion in the industry. At the same time as the media made great efforts, chip vendors, communication equipment vendors and telecom operators did not. With one exception, it began to dump all of its next-generation communication technologies with the aim of preempting the right to speak.
The value of 5G in terms of consumer numbers is that it's faster than 4G LTE (peak speeds can reach dozens of Gbps), for example, you can download an hd movie in a second, and 4G LTE can be as short as 10 minutes. It is because of this unique advantage that 5G is widely believed by the industry to play an important role in driverless cars, VR and the Internet of things.
Compared to 4G, 5G upgrades are more refined than 4G. 5G is characterized by high performance, low delay and high capacity, which is mainly reflected in millimeter wave, small base station, massive MIMO, full-duplex and beam. Over the past three decades, mobile networks have undergone innovations over and over again, and a new generation of mobile technology has been born almost every decade, bringing a leap in efficiency and experience. In the 1G era, people were freed from fixed telephones. 2G solved the limitations of 1G. 3G introduced mobile broadband for the first time, and 4G brought faster and more stable mobile broadband. So what 5G will bring us surprises?
Unlike the limited application areas of previous generations of mobile networks, 5G will be used in many industries. The reason is like we are knowing the first answer – what do you have to do to develop a mobile communication standard? As mentioned in the above: in addition to greatly increasing the transmission rate, 5G must have high stability, extremely low latency, high coverage and high network carrying capacity.
To achieve the above points, 5G has the ability to undertake more difficult tasks. According to the 3GPP's plan, the 5G Global Unified Standard (Release 15) will be released as early as 2018, and the global commercial deployment based on this standard began in 2019. According to our concept, 5G will be mainly used in three aspects, namely: enhanced mobile broadband (eMBB), mission critical service (Mission Critical Service, also known as high reliability low latency connection URLLC, for example Ultra-Reliable Low Latency Connection) and massive Internet of Things (Massive IoT). However, the three terms are actually very unclear, and this is only a rough idea based on the three characteristics of 5G technology. In fact, there are still many things to talk about. So below we will elaborate.
Enhanced mobile broadband
The mobile network upgrade of 5G is mainly reflected in two aspects. One is more extensive coverage and the other is more network capacity. Wider coverage also means better signals. This improvement is particularly evident for large buildings such as office buildings, industrial parks, shopping centers and large sports venues. Increased network capacity means mobile networks. Increasing bandwidth, being able to support more devices and use large amounts of data at the same time, makes the network faster for everyone. The net result of both improvements is that you can enjoy a more consistent and enhanced experience with mobile broadband applications wherever you are. The most typical ways to enhance mobile broadband are VR and AR (virtual and augmented reality). Although we have achieved gigabit LTE, Real-time VR/AR transmission is still not supported under LTE. 5G will significantly increase transmission rates due to a series of new technologies and improvements to existing ones. Now it seems that in the gigabit 5G era has become a trend. 5G theoretical downward peak can exceed 10Gbps, enough to support computationally intensive AR/VR user interaction. Of course, VR/AR is just one of many use cases for enhanced mobile broadband. Due to the increased coverage and network capacity, 5G can also be used for digital billboards in densely populated areas, online training education, multiplayer online conferences, online medical, and mobile network experiences. But these are mainly extensions of 4G value. In terms of economic value, the new function of 5G is not only transformative, but also undoubtedly more significant for the daily experience of ordinary users.
Massive Internet of Things
The so-called Internet of Things is the "Internet of Everything". The so-called massive Internet of Things That means at least 1 million devices connected to each square kilometer the time. This number may seem horrible, but you should know that IoT devices are actually very simple, and the amount of information that needs to be transmitted is not large, So low frequency bandwidth can satisfy this need, and because of the low-frequency diffraction ability. Wide coverage, signals can go deep underground, or reach other remote areas. Although the composition of the Internet of things may seem complex, the actual processing and distribution of the Internet is very simple. The application scenario of massive IoT includes the following parts: Asset tracking, smart agriculture, smart city, energy/utility monitoring, physical infrastructure, smart home, remote monitoring, beacon and online shopping.
Massive IoT is a new application area for 5G compared to previous generations. In these use cases, we can see the transformative impact of 5G. Take asset tracking as an example. Currently only available on high value goods. In the 5G era, due to the lower cost of hardware such as sensors and modems, The network can provide low-power, low-cost connectivity, Network logistics tracking will be expanded to more products. In the future people will have direct access to where the goods are. More importantly, it can enable logistics enterprises to realize refined management, thus improving the overall efficiency of the logistics industry.
Another example is smart cities. More infrastructure will be provided via mobile broadband connections, such as streetlights, voltage boxes and water mains. City managers can get accurate pictures of the state of each infrastructure, such as which street lamp is broken or which pipeline is missing. These can all be uploaded to the cloud via 5G network. Which one is filled with trash can is undoubtedly of great significance to improving urban efficiency and promoting people's life.
Mission critical service
Having with the current 4G LTE network, due to the adoption of new technologies such as "Self-contained integrated sub frame" and scalable TTI, the delay is significantly reduced, and 5G will support lower than 5G. With a delay of 1 millisecond, the Reliability is far more than 4G. As a result, it can be used in areas sensitive to network delays, such as drones, industrial pipelines and autonomous vehicles that are about to be implemented. And the increasing use of high-definition cameras and sensor kits on drones, the ability of 5G Enhanced mobile broadband to handle large amounts of data is also important.
The main use of drones is still in the stage of taking pictures and games, commercial and industrial drones will soon arrive. The e-commerce giant Amazon completed the first drone delivery at the end of last year, and similar news was frequently sent out In Chinese. Even some enterprises have begun to train "UAV pilots". It is foreseeable that drones are being used on a large scale for logistics. In addition, the government's demand for unmanned aerial vehicles is gradually increasing. Future potential use cases include public Security detection, anti-terrorism, riot prevention, patrol, search and rescue, tracking, public safety, traffic control, exploration and weather monitoring. The above is the 5G application programs that we have conceived, but the potential of 5G is not limited to this. As time goes on, there will be more new application scenarios that you will appear unconsciously. But for the future, no one can predict, as at the beginning of the 4G LTE concept in 2004, no one can think of a smartphone that will bring such a big change to the world. So, if you think that the above 5G application scene is not enough for science fiction, you May wish to leave some imagination space and expect 5G to bring more surprises. In addition, the deployment of 5G will take a long time, although the earliest commercial deployment can start from 2019, and the real popularity of 5G is expected to wait until 2025.
5G technology’s impact on education
Nowadays, 83% of US classrooms have access to Wi-Fi. 5G is a lot faster than Wi-Fi, it is almost 10 times faster. With 5G an hour long TV show can be downloaded in less than five seconds, 4G could take even a minute for the same content. 5G can be very helpful for educational purpose. YouTube have created free videos which contains lectures or educational material. With 5G students will have immediate access to all the videos on internet, everything educational which can only be accessible through internet which can helpful for students to reinforce their learning. 5G technology can be a problem for many students as they can lack interest in studying. Moreover, students can access textbook through tablet but they might be playing games instead of reading.
