It's been a while since DoCoMo did their 100 Mbps wireless test. Now they're at it again with a 1Gbps test. All wireless, of course. I'm curious as to why wireline isn't testing at even higher speeds. These speeds are surpassing most common ethernet networks, even. I know ethernet has a 10Gig standard, but who actually uses that? The GigE standard isn't even all that widely available, although with laptops starting to come with it this could change in the next year.

I just love this part thought:

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.

In other words, VSF-Spread OFDM radio access and MIMO ASESS based on QRM-MLD developed by DoCoMo. Got it? Good.

MobileTechNews - 4G achieves 1Gbps

Posted by Shane on June 23, 2005 9:25 AM | Permalink