Comments on: KDDI is planning Ultra 3G

By: Jesse Kopelman

Jesse Kopelman — Mon, 25 Jul 2005 21:25:46 +0000

Note that they hope to have the standard worked out by 2007, not the technology. HSDPA as a standard goes back to at least 2002, but you won’t see it deployed before 2006 . . . Achieving very high throughputs requires more spectrum than one can generally license. Getting an efficiency of 1 bit/Hz is considered quite excellent. At that efficiency you would need 100 MHz of spectrum to offer 100 Mbps service. I can’t think of an US carrier that has 100 MHz of spectrum in a given market even if you count 2.5 and 2.3 GHz licenses.

By: Om Malik

Om Malik — Mon, 25 Jul 2005 16:30:18 +0000

but when that happens. i think these technologies are going to happen, but i would temper my expectations

By: Permanent4

Permanent4 — Mon, 25 Jul 2005 16:04:19 +0000

50 Mbps UP!?!?? Holy crap, you could broadcast HDTV from a CAMCORDER with speeds like that…