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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting

QCOM 174.81

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Dec 26 9:30 AM EST

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To: FedWatcher who wrote (8967)	3/23/2001 10:37:53 PM
From: JGoren	Read Replies (1) of 197032

The way the 1x works is that it links 8 independent voice channels together. So you get a maximum of 8 X 14.4k thruput. It is up to the carrier to assign the maximum channels any one user can get assigned. But once assigned you get the maximum rate without any degradation. The only limit is if it were a heavily loaded cell and the number of voice users demand all the voice channels. In this case, then you would get the amount the carrier would let you have. But to compare apples to apples in all these systems, they all quote maximum data rates. GPRS is quoting max rates using 8 time slots, instead of 8 independent channels and they assign time slots on an availability basis as well. If their system (with a 3-5 times lower capacity to start with) encounters the very same scenario and loading limit, then they have to offer about 3-5 times less rate. However, imagine that you were in the very same side by side demand scenario in which you had N voice users and x data demand, then if you had 3-5 times less capacity on your GSM system, then you would first not be able to even offer service to all your voice users and the data users would get sidelined. So to answer your question directly, CDMA would get data throughput closer to the quoted rate A LOT more often than the GPRS would ever get close to. And in the same timeframe that GPRS comes out, the carriers will have HDR to transfer you to so that you get faster than that as well. Of course the GSM guys can go to EDGE IF AND WHEN they 1) finish the standard, 2) they built the system 3) they actually deploy it outside of a lab, and 4) the carriers come up with another $B or two to buy it.

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