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To: foundation who wrote (85355)	11/1/2000 9:44:45 AM
From: engineer	Respond to of 152472

ERIC ARE YOU LISTENING? This is an example of a standard that when applied to a large system exhibits problems which must be overcome and which may be SO formable that it can;t be done. WCDMA has alot of new ideas which are NOT related to IS-95, but new. They will take time. Example - In 1991, US TDMA had a complete std, Qualcomm had none. US TDMA had been working on a std for 3 years before that date. CDMA just went and built the system and demo'd it for the carriers. In Dec of 1991, IMJ stood up and said "We have the only field tested digital cellular system around". US TDMA rushed the TDMA system out to try to beat Q. What happened was that the stds guys tried to build a filter which was not realizable in 1993 technology and they could not trap the preamble of the data burst. So instead of having 3 time slots in the std, they never got it to work and the system had 2 time slots, becaue they had to make the preamble burst longer than they anticipated. Today they can build the filter they specified and can use the full 3 time slots. So the capacity of US TDMA was NOT the advertised 3x cellular, but more like 2.5x cellular for quite awhile. It ended up loosing the battle of which technology to go with for them. Go ahead and give me some more NON experience generalizations of your vast background. Been there done that.