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Technology Stocks : Ericsson overlook? -- Ignore unavailable to you. Want to Upgrade?

To: Jim Oravetz who wrote (4326)	10/5/2000 9:02:37 AM
From: JohnG	Respond to of 5390

SEE BELOW. It has been convincingly demonstrated that QCOM's CDMA has overwhelming Technical and Economic advantages over the GSM/EDGE/W-CDMA upgrade path. JohnG The Technical Case Against the TDMA/Edge/W-CDMA System. In Summary, this graph (by Dr. Jacobs of QCOM) of the capacity of 10 MHz of spectrum in mixtures of voice/data utilization says it all. Read vertical axis (Erlangs) as voice capacity and Horizontal axis (KBps) as data capacity.In every case capacity of QCOM's CDMA far exceeds that of the TDMA/EDGE/W-CDMA path. qualcomm.com Further, the GSM/TDMA upgrade path involves multiple expensive discards of both phones and system. Whereas the QCOM CDMA phones and system are forward and backward compatible. Thus, operators that upgrate from GSM or TDMA to W-CDMA will incurr huge equipment costs compared to thse adopting QCOM's CDMA. mobiledataevolution.com Technical Info about fitting QCOM's CDMA and W-CDMA in 10 MHz, 15 MHz and 20 MHz of spectrum. Note that the W-CDMA system fails to include "Guard Bands" which are necessary to prevent contamination of adjoining spectrum. cdg.org