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Technology Stocks : Nokia (NOK)
NOK 6.485-0.2%Jan 9 3:59 PM EST
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To: Wyätt Gwyön who wrote (5145)5/31/2000 11:44:00 AM
From: Allen  Read Replies (2) of 34857
 
I find the idea that Sprint or whoever can deliver me reliable 1Mbps over HDR when they can't even deliver voice hilarious.

A reasonable reaction, given the realities of HDR.

Just some simple HDR arithmetic, for those so interested. Assume a maximum channel rate of 2.4Mbps, which even Qualcomm acknowledges is more theoretical than real. This 2.4Mbps occurs in an IS-95 size channel, 1.25MHz. A typical IS-95 channel can support up to 24 users, and I've heard rumors that there's an effort to bring that to 48. 2.4Mbps divided by 24 users equals 100kbps per user, at the theoretical maximum.

My service with Sprint charges US$0.30 per minute for minutes over my plan's maximum. That works out to $7.20 per minute for Sprint when the entire channel is active. It's true that bandwidth for HDR can be dynamically allocated (as I hear it can for GPRS), but the more bandwidth used the higher the cost. And, of course, service providers are most likely going to be more interested in signing up multiple subscribers at the slower speed than they are in guaranteeing a small number of subscribers higher speeds.

Then substitute realistic numbers for the theoretical. I just don't see HDR being the high speed wireless data solution that a lot of people seem to think it is.
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