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To: Eric L who wrote (12794)6/19/2001 2:10:11 PM
From: carranza2  Read Replies (2) | Respond to of 34857
 
The pimping comment was prompted by Illmarinen's statement that <the GPRS "caveat" is "fixed" with HSCSD, for those
in need of a guaranteed channel during busy hours.> On reflection, this statement is not as categorical as I originally understood it to be. I suggest that to say HSCSD being pimped as a cure for GPRS is rude. My apologies to Illmarinen for characterizing his statement as "pimping." Uninformed? I'm not so sure. In the ultimate analysis, HSCSD is nothing but GSM without error correction.

I don't see the sense in congesting a congested network with guaranteed time slots for corporate users. Think about it: Where and when are the business users going to be using HSCSD? In metropolitan areas where many individuals will be competing for time slots.

I can see the quality of service for individual users becoming degraded as HSCSD enabled carriers are tempted to allot slots to high-paying corporate users. Illmarinen has indicated that a Finnish carrier has actually lowered rates for HSCSD users who use more than one additional time slot. Clearly, the money is in corporate use, and the Finnish company is obviously luring them in. You can be assured corporate use is more profitable, particularly if the plan calls for guaranteed slots to be available which, by the way, is not the only way to play.

As to error correction, it appears that HSCSD cannot reach decent speeds with it in place. Handoff is tricky, too, particularly if more than two slots are used. I would like to see a lot more information on the handoff issue but I simply can't find it or it is written in a language I don't understand.

zdnet.co.uk

I doubt that more than 28kbps will be offered by most networks. The only device I have seen that offers more than 28kbps data speeds (up to 43 kbps) is the Nokia 9210 Communicator. The 7000 series device is limited to 14.4. PC cards are available, too.

GPRSux so de-evolve and congest the networks by ripping out error-correction and giving GSM another name. Not a great way to evolve.

Just my opinion.