NTT DoCoMo Targets 300M bps in Super 3G Experiment
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NTT DoCoMo Inc. has embarked on a month-long experiment of a Super 3G (third-generation) cellular system.
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Mobile network operator O2 has completed a deal with Japan&#39;s NTT DoCoMo which will allow it to market 3G rival i-Mode services in the UK, Germany and Ireland.
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NTT DoCoMo will partner with Cingular Wireless to develop technical specifications of third-generation cell phones and services, according to a published report Thursday.
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(InfoWorld) - NTT DoCoMo came close to hitting another data transmission milestone in its research into next-generation cellular telephone systems during an experiment conducted in Japan on Dec. 25 last year. The company, Japan's leading cellular carrier, managed to transmit data at close to 5GbpsÂ to a receiver moving at 10 kilometers per hour, said Yoshiki Kakuda, a spokesman for the Tokyo company. He said the company's public relations department didn't know the exact speed achieved but that it was close to the 5Gbps mark. About a year earlier NTT DoCoMo succeeded inÂ transmitting data at 2.5GbpsÂ and this time managed to double that by increasing the number of MIMO (multiple in multiple out) transmitting and receiving antennas from six to 12 each and using better signal processing in the receiver. MIMO involves sending data using multiple antennas to increase the total throughput. The result was a doubling in the amount of data transmitted in the same 100MHz chunk of radio spectrum. Details of the experiment will be detailed at next week's 3GSM World Congress in Barcelona, Spain. NTT DoCoMo has been working on what it calls 4G (fourth-generation) technology for close to 10 years but the technology remains some way from commercialization. The carrier had previously said it plans to launch 4G in Japan around 2010 but recently indicated it plans to wring more speed out of its WCDMA (Wideband Code Division Multiple Access) 3G network before switching to a new technology. The carrier plans to launch a "Super 3G (third-generation)" service around 2010 that will offer data transmission at around 100Mbps. When NTT DoCoMo launched its 3G network in 2001, it could carry data at 384Kbps but that was recently raised to 3.6Mbps with the launch of an upgrade called HSDPA (high-speed downlink packet access). Carriers in other countries are also deploying the faster technology on their networks.
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NTT DoCoMo, Japan's top mobile-phone carrier, and Motorola Inc., the world's No. 2 cell-phone maker, plan to develop a more sophisticated mobile phone that subscribers in Japan can also use while traveling to other parts of Asia as well as Europe, the companies said Wednesday.
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British giant Vodafone said it aimed to become the second biggest operator in Japan through an aggressive push in third-generation (3G) service which is taking off in the country.
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La compagnia telefonica giapponese NTT DoCoMo ha sviluppato in collaborazione con Fujitsu un prototipo di cellulare 3G dotato di batteria a combustibile, con un&#39;autonomia sufficientemente lunga da consentire ai consumatori di trarre pieno beneficio delle
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Cingular, the largest US mobile phone operator, is to launch a high-speed third generation (3G) network.
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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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(InfoWorld) - A group of mobile phone operators and handset vendors is developing a 3G (third-generation) mobile phone platform that combines many standard hardware and software components in an effort to reduce phone development time and costs. NTT DoCoMo, Renesas Technology, Fujitsu, Mitsubishi Electric, Sharp, and Sony Ericsson Mobile CommunicationsÂ will jointly develop the platform that will support HSDPA (High-Speed Downlink Packet Access) and W-CDMA (Wideband Code Division Multiple Access) as well as GSM (Global System for Mobile Communications), GPRS (General Packet Radio Service) and EDGE (Enhanced Data Rates for GSM Evolution). Phones that use the new platform could become available worldwide and at a lower cost than other 3G handsets. In addition to the communications support, the platform will include a baseband processor, an application processor with multimedia functionality and a reference design including audio and power supply. It will also incorporate an operating system, with Symbian being the first supported. The companies expect to complete development of the platform in the second quarter 2008. The initiative is the third conducted by some of the companies involved. The first platform supported W-CDMA and GSM/GPRS and the second, still in development, incorporates additional software components. By joining forces to develop such a platform, the phone manufacturers don't have to individually build components that are common across all the phones. That means they can reduce development time and cost and focus instead on creating unique features for their phones. Renesas will sell the platform worldwide, even though most of the partners are in Japan.
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Japanese mobile phone company DoCoMo is in talks to buy 3G handsets from Motorola, the world's second largest handset maker.
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(InfoWorld) - NTT DoCoMo's 3G network in part of central Tokyo was hit by trouble on Saturday resulting in problems for tens of thousands of users. Problems with a switching board at a DoCoMo facility in the capital's Shibuya district caused the disruption, the carried said. Users in Shibuya and the nearby districts of Shinjuku, Okubo and Minami-Aoyama found calls and packet communications problems from 4:34am to 9:29pm local time on Saturday. NTT DoCoMo estimates around 92,600 subscribers were directly hit by the problem. The areas involved are some of the busiest parts of Tokyo and popular with thousands of shoppers at the weekend. NTT DoCoMo launched its WCDMA (Wideband Code Division Multiple Access) in 2001 becoming the first carrier in the world to offer commercial service based on the standard, which is now in use in many nations around the world.
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InfoWorld - NTT DoCoMo came close to hitting another data transmission milestone in its research into next-generation cellular telephone systems during an experiment conducted in Japan on Dec. 25 last year.
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Japanese electronics giant NEC Corp said on Monday it is seeking to build third-generation (3G) mobile phone infrastructure in China in a bid to gain a foothold in the world&#39;s biggest mobile phone market.
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NTT DoCoMo, the Japanese telecom service provider, has invested $3 million in MontaVista Software, a developer of Linux-based mobile middleware.
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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, Japan's biggest mobile carrier, may offer a cell phone based on Google's Android platform.