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To: SKIP PAUL who wrote (3066)11/8/1999 10:08:00 PM
From: Bux  Read Replies (1) | Respond to of 13582
 
What I heard Dr J saying was - skepticism about demand for WCDMA.

I recall that also, now that you mention it. I think he was referring to no demand for the type of data rates available through W-CDMA as well as a basic flaw of wideband in general. I think Jacobs sees HDR as more flexible than W-CDMA since HDR allocates narrowband channels (1.25 Mhz)separately to either voice or data using an optimized protocol for each for optimum performance. It has to do with latency times. A 500 msec. delay for a data request will not be noticed but a voice call needs to stay within 20msec. or the subscribers will be angry. So if a carrier has 5Mhz of spectrum, they could choose two voice and 1 data channel or 2 data channels and 1 voice channel depending upon needs (or can 4 channels fit in 5Mhz since the guardband is incorporated into each 1.25Mhz channel?). Jacobs indicated by using each channel specifically for either voice or data, there is a nice boost in quality/capacity since each channel can be optimally configured for the purpose. I think Wideband solutions do not have this advantage.

Bux



To: SKIP PAUL who wrote (3066)11/9/1999 8:53:00 AM
From: cfoe  Respond to of 13582
 
Dr. J, in response to a question, said Europe will have "lots of problems with having more than very slow data rates."

QCOM's management seemed to appreciate that the key is getting the HDR solution out into the market - signing up SPs, application builders, etc. Once this capacity is out there and working, I believe the marketplace will provide the demand and the laggards (including Europe) will need to climb aboard the CDMA train.