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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?


To: slacker711 who wrote (8830)10/9/2000 4:55:44 PM
From: DukeCrow  Read Replies (1) | Respond to of 12823
 
Does GPRS or EDGE allow an increase in VOICE capacity?

I may be mistaken, but aren't GPRS and EDGE data-only? I guess they could handle voice if it was done via VoIP, but I don't believe GPRS and EDGE do anything as far as traditional voice-capacity is concerned. In fact, as data competes with voice within the current spectrum it may reduce effective voice capacity.

Please correct me if I am mistaken.

Ali



To: slacker711 who wrote (8830)10/10/2000 11:03:00 AM
From: justone  Read Replies (2) | Respond to of 12823
 
GPRS and EDGE are data technologies that don't require held voice 'circuits'
but dynamically share the spectrum with voice. They 'increase' voice capacity only in the
sense that they may replace a held voice path used for data- but since this isn't
much deployed, so I don't think this is an issue.

Any of the data technologies that share spectrum would compete with voice.
In fact, you have to find ways in the technologies to give priority to voice, at
best.

Some thought has actually been given to VOIP over GPRS/EDGE, but UDP/IP/RTP has such high
overheads, that the native cellular voice technology is more efficient.

The only technology that doesn't negatively impact bandwidth is short
messaging, which uses the underutilized control channel.



To: slacker711 who wrote (8830)10/11/2000 1:54:58 PM
From: elmatador  Respond to of 12823
 
Re: Are you implying that GPRS will be installed in spectrum that is designated 3G?

No. I am saying that on the high concentration of potential subscribers, only GPRS will be implemented. And GPRS uses the same GSM spectrum. Or that you don't have to bid for UMTS licenses to implement GPRS.

(Below, capitals does not mean I'm shouting)

re: The other interpretation is that GPRS would be installed in current spectrum (EXACTLY) while W-CDMA would only be installed in cities (PRECISELY) .....thus leaving vast amounts of spectrum unused.

Neither of these options makes much sense to me. (I HAVE MY DOUBTS AS WELL) The operators just spent $35B for the rights to this spectrum....allowing most of the spectrum to remain unused seems improbable, unless they actually ran out of money OR THEY WERE FORCED TO BUY IT BECAUSE IT WAS THE RULES OF THE GAME? THIS I CAN'T SAY) (I wonder if their is a limit to how much the banks will lend the big Telecom companies). (YES THERE IS. THE LIMIT IS IMPOSED BY THE BANK REGULATORS)

One question I have had for a while that someone on this thread may be able to clear up.....Does GPRS or EDGE allow an increase in VOICE capacity? I know that both of these techonologies will allow an increase in data speeds, but have never received a clear answer on their respective voice capacacities compared to GSM.
FROM WHAT I EXTRACTED FROM WHAT I READ, IN GPRS VOICE IS TRANSPORTED AS IT IS TODAY. THE ONLY DIFFERENCE IS BETTER SPECTRUM EFFICIENCY THAT ALLOWS MORE DATA CARRYING CAPACITY.