Let's take a look at 5G: The fifth-generation mobile communication technology (the fifth-generation mobile network or the fifth-generation wireless system, or 5G technology for short) is the latest generation of cellular mobile communication technology, and it is an extension of 4G(LTE-A, WiMax), 3G(UMTS, LTE) and 2G(GSM) systems. The performance goals of 5G are high data rate, low latency, energy saving, low cost, high system capacity and large-scale equipment connection. The first phase of the 5G specification in Release- 15 is to adapt to the early commercial deployment. The second phase of Release- 16 will be completed in April 2020 and submitted to the International Telecommunication Union (ITU) as a candidate for IMT-2020 technology. ITU IMT-2020 requires a speed of up to 20 Gbit/s, which can realize wide channel bandwidth and large capacity MIMO.

This also shows that the advantages of 5G are high transmission rate, low delay and high-density connection (a large number of devices are networked in a small area).

So in what ways will these three points affect education?

First, the network speed is high.

High network speed can support the landing of VR education. In addition, it can also support the teaching scene of "group class", that is, students can see not only the pictures of teachers but also the pictures of classmates, which brings more imagination space for online education classes, especially the interactive mode of online art classes.

Take the art treasure 1 to 1 as an example, it is taught through online education, and it has done very well in the real-time video perspective correction system of art circulation. With the patented camera and AI perspective algorithm, some problems such as perspective and deformation brought by mobile device terminals during live teaching are solved. By doing so, the scene of offline live teaching is restored, which is rare in domestic online art institutions and the effect is good. However, after the popularization of 5G, this series will be strengthened and will be "tough".

Second, low latency.

Theoretically, the network delay of 5G can be controlled within 1ms, but at present, the delay of 4G is at least tens of milliseconds.

For the double-teacher live class, one of the major pain points for the teachers who stay in the live room is that they can't see the students' reactions in real time. Teachers send pictures to students, students give feedback, and pictures or data are sent back to teachers. There are at least two delays in this process.

Many times, if teachers wait for students' feedback before continuing to lecture, the students' experience will be very unsmooth. At present, excellent double-qualified teachers know more about the situation, predict students' feedback and respond in advance. This will inevitably lead to some embarrassing situations. If 5G is mature, low latency will greatly alleviate this problem.

Third, high density connection.

Take the campus as an example: to build a "smart campus" and a "smart classroom", a large number of sensors and IOT devices need to be deployed in a small area, and the current 4G and Wifi are difficult to support. To Xiaoli, in the real business scene, dozens of students in a class use answering machines, and dozens of classrooms in a campus. It is a big technical challenge to support the stable connection of these answering machines in the double-teacher classroom. And don't forget, there are computers, mobile phones and other electronic devices in this scene. With the arrival of 5G, this problem can be solved in a lower cost and more standardized way.

The arrival of 5G will inevitably have an impact on education, but at this stage, 5G has not been popularized, and the base station has not been fully built, but it can be prospected after it is built.