{"id":17491,"date":"2018-11-22T15:47:05","date_gmt":"2018-11-22T15:47:05","guid":{"rendered":"https:\/\/www.ispreview.co.uk\/?p=17491"},"modified":"2018-11-22T15:47:05","modified_gmt":"2018-11-22T15:47:05","slug":"5g-mobile-trial-in-japan-delivers-broadband-speeds-of-27gbps","status":"publish","type":"post","link":"https:\/\/www.ispreview.co.uk\/index.php\/2018\/11\/5g-mobile-trial-in-japan-delivers-broadband-speeds-of-27gbps.html","title":{"rendered":"5G Mobile Trial in Japan Delivers Broadband Speeds of 27Gbps"},"content":{"rendered":"

A joint outdoor field trial by Mitsubishi and NTT DOCOMO in Japan appears to have achieved a “world’s first<\/em>” by pushing the future 5G<\/a> mobile network technology to deliver maximum throughput speeds of 27Gbps and 25Gbps (communication distances of 10m and 100m respectively) via one mobile terminal in the 28GHz band.<\/p>\n

The ITU’s official “minimum requirements<\/em>” for 5G<\/a> performance specifies that such technologies should be able to deliver a peak downlink speed of 20Gbps and an uplink of 10Gbps, although this varies depending upon the environment and amount of spectrum available etc. (details<\/a>).<\/p>\n

However the field trial in Japan, which harnessed an antenna system with 16-beam spatial-multiplexing technology and 500MHz<\/strong> of bandwidth (16 x 16 MIMO), appears to have smashed through that by several Gigabits per second (Gbps) of extra performance. In this setup the base-station antennas were installed on the wall of a building, which then directed beams to mobile-terminal antennas installed on the rooftop of a vehicle.<\/p>\n

Apparently this R&D project was commissioned by Japan’s Ministry of Internal Affairs and Communications and the trial itself took place in Kamakura (Kanagawa Prefecture). The achieved peak data rates correspond to spectral efficiency of 67bps\/Hz, believed to be the “world’s best performance for 28GHz-band mobile telecommunication<\/em>.”<\/p>\n

Mitsubishi and NTT DOCOMO Statement<\/strong><\/p>\n

The test achieved the goal of the Japanese government\u2019s research and development project to help realize 5G<\/a> mobile communications based on high data-rate and low-power-consumption radio-access technologies and using an ultra-high-frequency band and extra-wide-bandwidth massive MIMO. The developed technologies are expected to enable wireless communications at ultra-high data rates of more than 20Gbps to moving vehicles with numerous passengers, such as buses.<\/p><\/blockquote>\n

However you’d need an extremely dense urban network and masses of fibre optic fed capacity in order to fuel this kind of setup in the real-world, which would be very expensive. Real-world performance would also be significantly slower due to the usual impacts of interference, capacity and demand etc.<\/p>\n

By comparison a top-end conventional 4G<\/a> network using 60MHz of bandwidth (4 x 4 MIMO) achieved 988Mbps<\/strong> over a similar distance.<\/p>\n","protected":false},"excerpt":{"rendered":"

A joint outdoor field trial by Mitsubishi and NTT DOCOMO in Japan appears to have achieved a “world’s first” by pushing the future 5G mobile network technology to deliver maximum throughput speeds of 27Gbps and 25Gbps (communication distances of 10m and 100m respectively) via one mobile terminal in the 28GHz band.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[1],"tags":[61,406,60,477,476],"class_list":["post-17491","post","type-post","status-publish","format-standard","hentry","category-uk_isp_news","tag-4g","tag-5g","tag-mobile-broadband","tag-science","tag-wifi"],"share_on_mastodon":{"url":"","error":""},"yoast_head":"\n5G Mobile Trial in Japan Delivers Broadband Speeds of 27Gbps - ISPreview UK<\/title>\n<meta name=\"description\" content=\"A joint outdoor field trial by Mitsubishi and NTT DOCOMO in Japan appears to have achieved a "world's first" by pushing the future 5G mobile network\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ispreview.co.uk\/index.php\/2018\/11\/5g-mobile-trial-in-japan-delivers-broadband-speeds-of-27gbps.html\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5G Mobile Trial in Japan Delivers Broadband Speeds of 27Gbps - 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