Chinese vendor Huawei Technologies, working in partnership with Japanese cellco NTT DOCOMO and Tobu Railway Co, says it has conducted fresh 5G trials as part of a wider programme instituted by the Ministry of Internal Affairs and Communications (MIC) of Japan. In a press release confirming the development, the equipment maker said the system trial was carried out as part of NTT DOCOMO’s commitment under the MIC’s programme, ‘to research technical conditions for using the 28GHz band and other candidate spectrums for 5G in dense urban areas’. The companies involved are exploring areas such as radio propagation characteristics, as well as evaluating 5G system performance with focus on enhanced Mobile Broad Band (eMBB) applications.
The release goes on to say that in December 2017, Huawei and DOCOMO successfully completed a long-distance, high speed data transmission test of 5G between the Tokyo Skytree (in Sumida, Tokyo) and a shopping facility at Asakusa railway station, using the 28GHz Millimeter Wave (mmWave) band. Also in December last year, Huawei and DOCOMO reportedly completed a field trial of 5G mobile technology using the 39GHz mmWave band. In those trials, which were carried out in the commercial district of Yokahama, the pair reported achieving peak download data speeds of over 2Gbps on a test vehicle with user equipment (UE) equivalent to a mobile phone, while driving at speeds over 20km per hour.