5G – A New Generation, A New Direction
发布时间:2020年02月27日
发布人:nanyuzi  

5G – A New Generation, A New Direction

 

Jonathan Ng

 

In October, theSingaporegovernment announced its goal of5Gnetwork coverage across at least half the country by end 2022. It’s cause for excitement, because unlike the comparatively gradual progressions from2Gto3Gto4G, the switch to5Gis monumental. It is going to change everything.

 

Where previous generations presented evolutionary improvements,5Grevolutionises the way information is transmitted wirelessly. This drastic transformation necessitates the installation of entirely new infrastructure, calling for a significant investment of time and resources.

 

Operating on super-high frequencies,5Grequires the replacement (or intially, augmentation) of old4Gmasts that broadcast in all directions and were placed far apart, with numerous smaller, more energy efficient5Gantennae that beam directly to your device. As the waves sent by these new5Gantennae are more easily interrupted by physical objects, a larger number of them are required to ensure proper coverage, but the antennae need only be small and thus, can be easily concealed within the environment.

 

When this infrastructure is in place, users will enjoy data transfer speeds eclipsing those we presently experience with4G– from 10 to 100 times faster! For example, a movie that took five minutes to download on4Gwill take just a few seconds on5G, and crisp high-definition television will be viewable on the go. A believable mobile virtual reality experience, requiring five gigabits per second of bandwidth, will be achievable. For gamers,5Gwill empower cloud gaming, facilitating the lag-free enjoyment of computing-intensive games on even the most rudimentary of devices, as the heavy processing will be handled in the cloud.

 

Once5Ginfrastructure is properly deployed and fully functioning, the technology promises to free users from the need to use any wire or cable to deliver content to not only mobile devices, but also, all fixed home television and sound systems or desktop computers. Consumers may initially find these ‘fun’ aspects of5Gthe most attention worthy, however entertainment is just one area where5Gwill be a literal game-changer.

 

Whereas today, every so-called ‘smart device’ needs to be equipped with computing power on a par with a smart phone, with5G, the various elements of a smart home, office or factory need only be relatively simple devices, their higher functions controlled remotely by a more sophisticated ‘master’ controller.5Gwill power the effective functioning of the internet of things (IoT), where interconnected machines ‘talk’ with one another to better function in unison, which is simply not possible with4G’s limited bandwidth.

 

The same principles will be applied on a larger scale to transform our metropolitan centres into smart cities, where interconnected controls and sensors in urban areas analyse conditions to more efficiently provide services, utilise resources and respond to or anticipate crises.

 

The lightning-fast speeds at which5Goperates will allow not only the instantaneous transfer of information across vast distances, but the transmission of skills, delivering both know-how and the practical performance of tasks where and when they’re needed. For instance, using5Gnetworks, a brain surgeon inNew Yorkcould operate remotely on a patient inNew Delhi, controlling a robot that responds immediately to their commands, without risk of potentially life-threatening delays in reaction time.

 

This elimination of what is called ‘latency’ – the delay before a transfer of data begins, following a command for its transfer – is the key to5G’s empowerment of autonomous automobiles. To operate safely, these require an uninterrupted stream of data, which cannot be guaranteed using4G.

 

With5G, however, instant vehicle-to-vehicle (V2V) communication – effected in a millisecond, even when out of line-of-sight – will allow autonomous cars to smoothly and safely navigate around one another. Vehicle-to-everything (V2X) communication will integrate cars into the smart city IoT network, ‘talking’ with public infrastructure such as toll roads, pedestrian crossings, parking garages and meters, reacting to real-time weather and traffic updates.

 

Even before the advent of autonomous motoring, commuters will benefit from the increased precision and capabilities5Gbrings in terms of navigation. A larger, more powerful network of antennae and faster response times will bring greater accuracy in location awareness. Literally and figuratively,5Gis helping map out an exciting new journey forward.