2g brought the Internet, as bandwidth requirements to a minimum of text and pictures for the main content of the site fire up.
3g mobile Internet and bring higher network speed, not only with the fire of social software, and make your site social software have the mobility.
Let 4g mobile Internet deepened, to improve network speed mobile Internet, the popularity and reduce its cost, so, based on a small video and live higher bandwidth requirements emerged.
Observation 2g, 3g, 4g can be found, better network communication technology to bring a richer content, more convenient experience, from the content to the carrier, it is a qualitative leap, not by ordinary reasoning can ever imagine. 2g just like in an Internet era, we simply can not imagine, with a desktop computer dial-up Internet browsing of us, one day using a mobile phone will be able to see all kinds of live video, play a variety of connection and fight game.
And 5g, bring a greater increase, to see a set of data to know:
5g 4g speeds 10 times faster than the peak, the peak speed 4g is 1Gb / s, that 5g of peak speed is 10Gb / s, according to daily use, do not say peak data, but also how to 1Gb / s. As well as network delay, 4g network latency is 10-50ms, and 5g network delay is 1ms, substantially equivalent to that without delay.
So with respect to 5g 4g, the specific application scenarios to what advantage?
Also said the above, speed is a fast, no one is delayed, if extended to the scenario, it will produce a few key words: intelligent hardware, cloud, unmanned.
Intelligent hardware
4g can be said that spawned today's large-screen touch screen mobile phone, because content and applications 4g brought has changed a lot, you need an intelligent, interactive touch screen as the big carriers. And 5g of the times, the carrier will develop from the phone to other intelligent hardware.
Such as VR. The current VR form content is still relatively small, but wait until the era 5g, content delivery will be faster, our demand for content is no longer confined to a 2D plane mode, it will pursue a more immersive, more interactive sense of content and form, VR is such a form of content. With the support of VR glasses and 5g of ultra-fast speed, we watch movies, social VR will transition to the carrier, it makes us realize what is truly "immersive."
再比如智能家居。在5g带宽的支持下，所有智能电器将会实现互联互通，我们的喜好、个人资料等都会上传到智能数据库中，在家里只需要一声令下，所有家居都会智能化地为我们服务，可以说是一套为我们量身定制的智能化家电系统。
云
在4g时代，云平台、云计算已经发展到一定高度了，但在5g时代，云会彻底颠覆我们的生活。在5g的超高速网速和低延迟性下，以后我们的手机、电脑等智能设备全都会介入云平台，所有的储存空间，全都有目前的有形的“储存卡”变成无形的“云”，并在“云”上利用云算法进行运算。所以，以后的手机、电脑等，都会变成一个显示和操控的设备。我肯只需一个云账号，就可以运载我们的电子设备。
无人驾驶
刚才说到5g的低延迟性，这点对于无人驾驶来说至关重要。无人驾驶，本质就是大数据的传输和运算。在无人驾驶运行过程中，需要实时根据最新路况，进行云传输和计算。在4g时代，数据的传输速度和延迟性都无法满足一个成熟的无人驾驶条件，而在5g的时代，数据传输几乎0延迟，可以保证汽车在行驶过程中实时与云平台进行数据传输和分析，保证车辆行驶在合理的轨道上，做出合理的避让行为。
这三个方面是5g时代最主要的三个应用领域，其他的应用，有些包含在这三个领域中，有些因为我才疏学浅还没能想到