NTT DoCoMo Tests 4G Network Achieving 1Gbps Speeds

Posted: Jun 26 2005, 8:00am EST | by , Updated: Aug 10 2010, 4:08pm CDT, in News | Mobile Phones


NTT DoCoMo Tests 4G Network Achieving 1Gbps Speeds
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I still do not have a 3G phone (because of the stupid pricing plans in Germany) and NTT DoCoMo already fools around with 4G networks.

NTT DoCoMo announced that they reached 1Gbps real-time packet transmission in the downlink at the moving speed of about 20km/h in a field experiment on fourth-generation (4G) radio access.
If you want to blow your mind read the sentence below taken from the press-release explaining the technology.

From the press-release:
"The 1Gbps real-time packet transmission was realized through Variable Spreading Factor-Spread Orthogonal Frequency Division Multiplexing (VSF-Spread OFDM) radio access and 4-by-4 Multiple-Input-Multiple-Output (MIMO) multiplexing using "adaptive selection of surviving symbol replica candidate" (ASESS) based on Maximum Likelihood Detection with QR decomposition and the M-algorithm (QRM-MLD), which was developed by DoCoMo."
More details in this NTT press-release.

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The Author

<a href="/latest_stories/all/all/2" rel="author">Luigi Lugmayr</a>
Luigi Lugmayr () is the founding chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at




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