PrePaidGSM.net Forum (Archived) - View Single Post - W-cdma + Hsdpa At 900mhz!

DRNewcomb · 02-02-2006, 03:23

But it's rather stupid. With a 900 MHz or 850 MHz license you get about 25 MHz of specturm. It takes about 30 MHz to make a proper deployment of WCDMA. That's three channels at 5 MHz x 2 per channel. If you try to deploy on just one channel (which can be done) there is a serious degredation of speed as you move away from the cell site.

WCDMA is only important to me as a way to GSM roam in Japan, and now S. Korea. I'm much more a fan of TD-CDMA, which is much more spectrum efficient and can be deployed with as little as 5 MHz, total.

	(#4)
DRNewcomb (Offline) Senior Member Prepaid Professionist Posts: 1,465 Join Date: 27 Feb 2004 Location: Mississippi, USA Country:	02-02-2006, 03:23 But it's rather stupid. With a 900 MHz or 850 MHz license you get about 25 MHz of specturm. It takes about 30 MHz to make a proper deployment of WCDMA. That's three channels at 5 MHz x 2 per channel. If you try to deploy on just one channel (which can be done) there is a serious degredation of speed as you move away from the cell site. WCDMA is only important to me as a way to GSM roam in Japan, and now S. Korea. I'm much more a fan of TD-CDMA, which is much more spectrum efficient and can be deployed with as little as 5 MHz, total.