Many companies are working on the development of a new generation of mobile networks. The most important here are tests carried out jointly by the manufacturers of base stations and operators. So far, none of the mobile device manufacturers has moved their prototype of a smartphone that supports 5G. In turn, Samsung wants to win the 5G race offering not only base stations and backbone network components, but also subscriber devices. That is why the test in which the prototype tablets were used is extremely interesting.
Samsung together with the Japanese operator KDDI is working on launching one of the first 5G networks in the world. While in Europe it is mainly said about the construction of a new generation network using the 3.4 GHz – 3.8 GHz band, in Asia the solutions using the 28 GHz millimetre will be more popular. The difference in the approach to the construction of the 5G network is due to the fact that the Japanese dream of staying at the stadium and watching sport events using VR goggles and 4K tablets. The LTE network would not be able to handle such a large amount of data due to the much smaller capacity. In contrast, Samsung showed that the 5G network is able to transmit a 4K image to many devices at the same time. However, this is not the most important thing.
Samsung has constructed a tablet prototype that supports 5G at 28 GHz
The test took place at the baseball stadium in the Japanese city of Naha. The base station was mounted a lighthouse, and the antenna beam included stands located near three bases (home, first and third). In turn, simultaneous transmission of video stream to several devices took place using the beam forming technique. This means that the base station has a multi-beam antenna, which transmits the information only in the direction of the selected device. Thanks to this, the same frequencies can be used by several devices. This technology does not increase the maximum speed for a single user, but significantly improves the capacity of the base station. This is the most important issue for operators who want to use 5G networks in stadiums for 30,000 people.