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Technology Stocks : Qualcomm Incorporated (QCOM) -- Ignore unavailable to you. Want to Upgrade?

To: Clarksterh who wrote (19460)	12/10/1998 12:38:00 AM
From: Ramus	Read Replies (1) \| Respond to of 152472

Clark, Mikka... Just had to chime in on something. Everyone has pointed out how QCOM responded to the 3.84MCPS baloney months ago...it's no compromise...wrecks CDMAone compatibility, offers no performance advantages etc etc. But think about the following.... whilst reading ITU ETSI UTRA W-CDMA proposal I saw that their base vocoder data rate was 8kbps. Multiply that by 2^9 or 512, a nice modulo 2 number, you get to 4.096MCPS. Now do the same with 3.84MCPS and you get a factor of 480. Not a nice modulo two number. Ok, I know, from a simple system perspective we don't have to saddle ourselves with nice mod 2 numbers. But, one wonders what Ericsson is planning to change system wise to move from 4.096MCPS to 3.84MCPS hmmmmmm? Some fractional coding rates perhaps???? Add this.... CDG published a paper pointing out that CDMA-2000 was more spectrally efficient than W-CDMA. Actually, the ITU proposals themselves point this out. But CDG refers to an independent Chinese study which agrees with CDMA-2000 and ETSI UTRA W-CDMA that CDMA-2000 is more spectrally efficient. Now, isn't this interesting to consider as Ericsson proposes to reduce their chiprate? A cellsite with CDMA-2000 and one 3XRTT carrier can handle more capacity than a W-CDMA cell with 4.096MCPS. Once again, 3.6864MCPS CDMA-2000(10% less spectrum) can handle more capacity than 4.096MCPS W-CDMA. And Ericsson proposes to compromise by lowering their chiprate? Remember how Ericsson has always said that lowering the chiprate would degrade performance? See how their own ITU proposal states less capacity(for 4.096MCPS) than CDMA-2000(at 3.6864MCPS)? What oh what is gong on here? And don't forget how W-CDMA proponents would point out the inferiority of CDMA-2000 with it's lower chiprate! Bah!! Mikka, do you get it yet? W-CDMA/Ericsson doesn't really care all that much about the chip rate. They just need to be different from CDMA-2000....simple. But if they really want to compromise they really can...and it will serve the GSM base and the IS-95 base....it's called 3.6864MCPS for starters. QCOM and Ericy have known all along that this compromise is possible from a technical standpoint and the W-CDMA camp has yet to explain why not...in technical terms. Answer ...there are only business reasons not technical ones. Walt