4G is the fourth-generation wireless cellular phone communication protocol. The frequency band used is 1880MHz-2665MHz, which can transmit high-quality video images and high-quality images, and can achieve 100Mbps download speeds. 4G standards mainly include LTE, TD-LTE, FDD -LTE. At present, global operators have achieved extensive deployment of 4G. On December 4, 2013, the Ministry of Industry and Information Technology officially issued a fourth-generation mobile communication business license to China Mobile, China Unicom, and China Telecom, which is also a formal 4G license, marking the formal entry of China's telecommunications industry into the 4G era.

5G: a new vision for the Internet of Everything
Today, people's attention to 5G has reached the highest level in history. From the application point of view, 5G has made breakthroughs in human-to-human communication, and then moved to human-to-thing, thing-to-thing communication. Looking back on the historical process from 1G to 4G, every upgrade of communication technology has brought great changes to our lives. Therefore, people have more eager prospects for 5G technology, and the most prominent one is the imagination of the future of the Internet of Everything. This has never happened before in human history.
In terms of latency, the latency of 5G is greatly reduced, which has a great impact on many real-time applications, such as games, video and data phones, autonomous driving, and so on. The maximum number of connections per square kilometer of 5G is also a hundred times that of 4G, and the maximum mobile speed supported is 1.5 times.

In addition, there is another change in 5G, which is the change of transmission path. In the past, when we called or passed photos, the signal was relayed through the base station, but after 5G, the device and the device can be directly transmitted without the need to pass through the base station.
If you want to delve into the impact of 5G on future life, you must not just focus on 5G, a single technology. In terms of applications, 5G will become the basic network infrastructure and will be integrated with cloud computing, big data and artificial intelligence technologies to provide more grounded applications and services.
Looking back on the entire communication development process, we can see that the development of communication technology cannot be separated from the driving force of the entire industry and market. In addition, with the global communication becoming closer and closer, the communication industry has also become a very large industry with global collaboration. Therefore, the arrival of 5G is inseparable from the mutual support between countries around the world.

Written by Owen