NTT DoCoMo targets 300Mbps in Super 3G test
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InfoWorld - NTT DoCoMo has embarked on a month-long experiment of a Super 3G (third-generation) cellular system.
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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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TOKYO - 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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Cingular Wireless, US largest wireless provider, announced plans to begin deploying 3G mobile wireless data network. The 3G network will offer average data speeds between 400-700 kilobits per second (Kbps), and
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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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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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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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NTT DoCoMo, Japan's biggest mobile carrier, is to spearhead the rollout of an advanced version of its 3G (third-generation) services called Super 3G, a company spokesman said Wednesday.
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NTT DoCoMo used its proprietary signal separation technique to enable data transmission at 1 Gbps in rea ltime using a bandwidth of 100 MHz in an area with low radio signal receptivity.
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InfoWorld - South Korea&#39;s three big cellphone makers are speeding the path to higher speed data downloads over wireless networks.
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Wireless carriers already are thinking ahead to even bigger and speedier networks than the current 3G systems being deployed worldwide. A new standard called "Super 3G," supported by dozens of the world's biggest carriers, could be 10 times faster than the current fastest mobile networks.
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The company has become the latest operator to reveal it is investigating technology designed to improve 3G coverage indoors.
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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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InfoWorld - Big names are coming to mobile video after a slow start for a service that has been touted as a perfect use for fast 3G (third-generation) networks.
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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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US and Japanese mobile-phone giants Motorola and DoCoMo are teaming up to develop a FOMA handset that runs on GSM/GPRS networks. The third-generation device will allow Japanese business users
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After some years on the drawing board, Japanese mobile giant NTT DoCoMo has announced its work on a common platform for 3G phones has come to fruition.