View Full Version : 3G Outdated already?
01-12-2003, 12:31 PM
Why didnt Sentech decide to go with this Technology instead ProAsm? Seems like a huge problem for 3G
01-12-2003, 12:41 PM
i dont think they said they were using 3g, jus mentioned it, they might be using it, or they might not.... until they release, I have no idea :)
01-12-2003, 12:47 PM
01-12-2003, 01:22 PM
fine, which areas do they cover them mr.know-it-all? :)
01-12-2003, 01:25 PM
Errr....I dont know which areas they cover. I'm not mr know-it-all.
I just happen to know they are using 3G technology.
01-12-2003, 01:34 PM
Sentech has been planning this for a long time maybe at the time they started implimenting this wasn't availible they have all the equipment already so it would be a waist to just convert but maybe with new cells they can encorperate it since it uses the same 802.11b system :) Dunno but this could be the case :)
02-12-2003, 12:31 AM
So, fascinatingly enough, the technology is based on UMTS/3G.
What happens when the Govt. wants to auction this part of the spectrum for voice (Sentech can't carry voice)? Will this change the cost structure?
Nonetheless, I'm really looking forward to the spin-off benefits that this can bring to users....remote data collection etc.
"IPWireless Mobile Broadband technology is a packet data implementation of the international 3GPP Universal Mobile Telecommunication System (UMTS) standard. Time-division-duplex (TDD) is used, according to the 3GPP UMTS UTRA TD-CDMA standard, allowing operation on unpaired spectrum anywhere in these bands. Chip rates of 3.84 and 7.68 megachips/sec (Mcps) are supported, for operation in channelization of 5 and10 MHz (6 and 12 MHz in the MMDS band)."
02-12-2003, 12:42 AM
Hey chopsky, check out this article off IPWireless.com:
Interesting discussion why WiMAX won't dislodged this just yet:
..three companies – Flarion Technologies, IPWireless and Navini Networks - have emerged with compelling technologies that support broadband data access in mobile or nomadic environments as well as supporting voice traffic using voice over IP. Importantly, these companies offer simple USB modules or PC cards that extend coverage to desktop and notebook PCs.
These three vendors are each pushing solutions based on a number of established technologies...IPWireless is pushing UMTS-TDD, which is a standard closely related to UMTS-FDD, the flavour of 3G that European operators are adopting.
What makes these technologies so threatening is the shear superiority of their performance over W-CDMA. They all support data downlink speeds in excess of 500Kbps several kilometres from a base station. By contrast, the limitations of W-CDMA, along with the fact that it requires capacity for both cellular voice and data services, means that operators are unlikely to support 3G connection speeds greater that 100Kbps. The voice requirement also limits the W-CDMA cell size, restricting coverage to just two to three kilometres from a base station.