In fact, the value of 5G technology does not lie in the provision of networks for ordinary people, but in the application of the network speed after the increase in the scene. But this issue is not about 5G, which has been developed and is still commercially available despite its high operating costs. The article in this issue is about 6G networks, so you can understand the concept of 6G networks.
In fact, the 6G network refers to the sixth generation of communication technology, which can also be called the "sixth generation of mobile communication standards", the development of the 6G network is mainly to promote the development of the Internet of Things (IoT), and many countries around the world have begun to research and development of the 6G, which is mainly reflected in the transmission capacity and reduce network latency, the 6G network transmission capacity than the 5G network, the 6G network is more than the 5G network. The 6G network is much faster than the 5G network, and the network latency is likely to break through to the "microsecond" level.
In layman's terms, a 6G network is a mobile communications standard that transmits data and signals via terrestrial wireless devices and satellites to cover any country or region of the world. To put it in a small way, it will allow people in remote mountainous areas to enjoy the benefits of network coverage (medical care, network education); to put it in a larger way, once the 6G network layout is completed, with the cooperation of ground and air, it will be able to play a "disruptive" role in the fields of natural disaster prediction, rescue and search and rescue, satellite positioning, and automated driving. To use a more exaggerated, but possible to realize the word to describe: "everything is connected".
But wherever 4G and 5G networks are used, 6G will bring them a leap forward.
Our 6G in China started back in March 2018, and the likes of China Unicom and China Mobile have laid out and started researching 6G technology. If you have read the white paper "6G Wireless Intelligence Ubiquitous Key Drivers and Research Challenges", you will know where the difference between 6G and 5G is, although it is still very difficult to realize the 6G network with the current progress of research and development, but if the research and development is really successful, the 6G transmission speed should be about a hundred times faster than 5G, and downloading a TV series in a second may become a reality.
Countries like Finland, the European Union, and Russia have already started R&D on 6G-related technologies, and even the United States, which has sanctioned Huawei for its 5G technology, has also begun research on 6G in 2019 and voted to open up the "terahertz wave" spectrum. South Korean giants like Samsung Electronics and LG Electronics have also set up their own 6G research centers.
As countries around the world begin to develop 6G, the terahertz (THz) band is getting a lot of attention. In fact, the terahertz band refers to the "100GHz-10THz" band, which is much higher in frequency than 5G, whereas the 1G network is 0.9GHz, and the 4G network is only up to 1.8GHz or more. This shows the gap between 6G and the other networks.
The improvement of communication technology will inevitably lead to higher frequency bands, higher spectral frequency, allowing the allocation of bandwidth range will be larger, and the amount of information and data transmitted in a given time will also increase, and increase. This is like building a highway, as long as the site is not restricted, the wider the highway, the more cars run, the flatter the highway, the faster the car runs.
In addition, there is another point, no matter what kind of network, the bandwidth provided is limited, but with the increase in the use of the network terminal equipment (cars, ships, cell phones, computers, drones, etc.), will inevitably lead to network congestion. The easiest and most direct way to solve this problem is to "develop 5G and 6G".
Although 5G is not yet widely available, it's only a matter of time. The reason why countries are investing a lot of manpower and resources in R&D for 6G is to suppress other countries in terms of technology, so that their own enterprises can benefit from it, which can be seen from the US sparing no effort in suppressing Huawei.
The so-called "terahertz" can also be called "sub-millimeter", which has a strong attenuation penetration, high signal-to-noise ratio of the time-domain spectrum, instantaneous bandwidth and other characteristics, in the medical field, surveying and imaging, communications, have a certain degree of application prospects. Based on some of its main features, especially the "instantaneous bandwidth", it can be used in the field of high-speed communications.
Speaking of this "indicator", it is somewhat intriguing, many countries in the Terahertz band as a breakthrough in the 6G network, but does not mean that the application of the Terahertz band network belongs to the 6G network, you need to achieve the corresponding labeling in other areas can be. For example, the transmission speed should reach a minimum of 100Gbps, the highest need to reach 1Tbps, the most to be more than 10 times faster than 5G. In addition, the positioning accuracy, communication delay, the chance of interruption, equipment density, etc., should be better than 5G.
To put it simply, 6G is an iterative version of 5G, although the preliminary determination of the "6G network communication standards", but does not mean that the achievement of these indicators is necessarily 6G.
However, 6G is still only a research stage. 6G is still only in the research phase, and even the most basic "standards" have not been fully determined, and as for the commercialization of the issue, it is considered to be fast to be able to start commercialization in 10 years.