A Japanese carrier during testing 4g in a testing apparatus, a speed achieved of 1.2 Gbps. It is the first time that via 4g outside of a laboratory such high speeds to be measured. The provider uses a combination of frequencies.
To the speed to be reached used NTT-Docomo smart vertical MiMo, a technology to four ‘connections’ at the same time, between cell tower and phone to convert. The test rig consisted of a base and two moving trucks, in which the signals were received. The test took place in a frequentieruimte of 100MHz on the 3.9 GHz band, higher than in many cases for 4g will be used.
The maximum speed that the provider took was 1254Mbit/s, slightly more than 1.2 Gbit/s. It is the first time that 4g in a field test such high speeds. That was done through lte-advanced, a faster version than the 4g standard that is being used in the Netherlands. In the Netherlands, users have speeds between 10Mbit/s and 50Mbit/s. NTT-Docomo wants the technology from 2015 on its network in Japan to apply, but what speeds users will get is unclear.
In the Netherlands providers started this year with 4g. KPN offers the to since February, Vodafone followed in August and T-Mobile is a week ago. Tele2, the fourth licensee of frequencies in the Netherlands, will follow next year with its own 4g network.
