The United States for the first time to look at 6G: dynamic band sharing based on blockchain

The first phase of the 5G communication technology standard was completed. The entire industry is still in the preparation stage. There is still a period of time from formal commercial use, but everyone has begun to imagine what 6G will be like.

In fact, a few months ago, Google has selected 6G as one of the most concerned words. A Fortune 500 company has recently revealed its research on 6G. The Ministry of Industry and Information Technology of China even made it clear that China has begun to study 6G.

At the MWCA 2018 Mobile World Congress in Los Angeles, US Federal Communications Commission (FCC) Commissioner Jessica Rosenworcel suggested in the speech that 6G will move to the terahertz (THz) frequency and introduce blockchain-based dynamic band sharing technology. .

1G, 2G, 3G, 4G, 5G all the way, in order to increase capacity and speed, the spectrum of mobile communication is more and more, the frequency band is getting higher and higher, 5G has entered the millimeter wave band, and 6G is likely to introduce THz. .

However, as the frequency band increases, the coverage of the signal will become smaller and smaller, and the base station will have to be built more and more. In the future, we may have base stations everywhere.

In addition, FCC launched CBRSD (Public Wireless Broadband Service) in the 3.5 GHz band in 2015 to dynamically manage different types of wireless traffic through a centralized spectrum access database system to improve spectrum efficiency.

According to Rosenworcel, CBRS is highly creative, efficient and forward-looking. In the future, it will enable smarter, more distributed dynamic spectrum sharing access technology, namely blockchain + dynamic spectrum sharing.

He pointed out that the blockchain is a distributed database and can be updated securely without central intermediary. In the future, the use of blockchain as a low-cost alternative to dynamic spectrum sharing technology can be explored, which not only reduces the management cost of dynamic spectrum access systems, but also improves Spectrum efficiency can further increase access levels and access users.

Rosenworcel believes that the use of decentralized distributed ledgers to record various wireless access information can further stimulate new technological innovations and even change the way the wireless spectrum is used in the future.

He also stressed that 6G is not as far away as we think.