NTT DoCoMo Achieves 1Gbps Packet Transmission in 4G
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According to JCN Network, NTT DoCoMo announced December 17 that it succeeded in achieving 1Gbps in downlink packet data transmission in a laboratory experiment using forth-generation (4G) mobile communication radio access equipment on August 20, 2004.
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TOKYO : Japan&#39;s top mobile operator NTT DoCoMo believes Europe will embrace hi-tech telephones and expects a major boost in subscribers on the continent of its i-mode Internet service.
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For the first time, data were transferred in real time via mobile communication at a speed of one gigabit per second (Gbit/s), or 1,000 megabits per second (Mbit/s).
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(InfoWorld) - NTT DoCoMo has embarked on a month-long experiment of a Super 3G (third-generation) cellular system. The indoor experiment will test data transmission speed and NTT DoCoMo hopes to hit a downlink speed of 300Mbps, it said Friday. First trails will involve the use of a single antenna on both the transmitter and receiver and then the use of up to four multiple-input multiple-output (MIMO) antennas. The tests will also look at the speed with which communications can be handed from one base station to another. Super 3G, which is also known by the acronym LTE (long-term evolution), uses the same radio spectrum band as current 3G services, but that's one of the few similarities. Super 3G allows for a number of different bandwidth channels and uses different modulation systems to transmit the data. It is envisaged to eventually allow data links at 80Mbps to the network and 300Mbps from the network. The company, which is Japan's largest cellular carrier, has been working on Super 3G for some time and anticipates introducing the technology in Japan sometime around 2009 as a stepping stone between current so-called 3.5G technology and future 4G (fourth-generation) systems. NTT DoCoMo has also been aggressively pursuing 4G system development. In experiments conducted in late December last year the carrier came close to hitting aÂ 5Gbps data transmission speedÂ from an experimental 4G system to a receiver moving at 10 kilometers per hour. Â
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New technologies wirelessly transmit high-definition video.
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Japan&#39;s top cell phone operator NTT DoCoMo Inc. and major British mobile carrier mm02 plc reached an agreement that will allow mobile telephone users in Britain, Germany, and Ireland to surf the Internet on the handsets, DoCoMo said Tuesday.
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InfoWorld - NTT DoCoMo&#39;s 3G network in part of central Tokyo was hit by trouble on Saturday resulting in problems for tens of thousands of users.
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DoCoMo&#39;s service allows users to send e-mails, chat, play games, download ring tones and access content from more than 70,000 Web sites.
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The technology promises download speeds of 1 to 1.5 MB per second, reaching peaks of up to 3.2 MBps. So far, Cisco, IBM and Nortel, all major sources of equipment to telecom service providers worldwide, have
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DoCoMo has been offering its Internet capable i-mode mobile service in Japan since 1998. Now, under a new agreement, mm02 will provide DoCoMo&#39;s i-mode technology to its 22 million customers in Britain, Germany and Ireland.
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Laptops from Lenovo will start shipping this year with HSDPA technology built in, which can theoretically support download speeds up to 14.4MBps.
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Top Japanese wireless carrier NTT DoCoMo (9437.T) said on Thursday it would launch a 3G phone equipped for use overseas and including a video conferencing function, getting a leg-up on its closest rival, KDDI Corp. (9433.T).
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NTT DoCoMo will release a handset compatible with non-Japanese cellular networks and with its own 3G (third generation) mobile network early next year.
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NTT DoCoMo, Japan&#39;s biggest mobile communications carrier, achieved a 1Gbps packet transmission speed using 4G) mobile communication equipment in August, the company has said.
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The world's leading wireless carriers and  telecoms equipment makers, including NTT DoCoMo, have agreed to  develop an advanced mobile phone standard capable of sending  high-resolution video in an instant, a Japanese newspaper  reported on Friday.
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Japan's NTT DoCoMo (NYSE: DCM) has launched a Wi-Fi/cellular phone that telecom industry analysts say is the first of its kind.
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TOKYO -- NTT DoCoMo Inc. has decided to work with Cingular Wireless LLC on 3G (third-generation) cellular telephone technology following the latter's acquisition of NTT DoCoMo's current U.S. partner, AT&T Wireless Services Inc., the Nihon Keizai Shimbun business daily reported in its Thursday morning edition.