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To: engineer who wrote (66636)	2/13/2000 6:07:00 PM
From: Ruffian	Read Replies (2) \| Respond to of 152472

Anyone want to take a shot at this> It's simple my good man. A new 3G chip means further recognition of 3G standard as the only wireless bandwidth capable of multi-media data processing. For the purposes of this board, the significance lies in the belief that QCOM is owed royalties on anything that has a CDMA tag. This is grossly inaccurate. In reference to IS95, QCOM's dominance is without question. The point here is that their technology can not keep up with the demands of the consumers. QCOM can make no claims on backbone 3G IPR and can therefore collect no royalties unless specific QCOM patents are utilized, which is not necessary. QCOM is merely a vendor of 3G and not a proprietary holder of their core IPR. This is the point that is completely lost on the QCOM cult.

To: engineer who wrote (66636)	2/13/2000 11:16:00 PM
From: S100	Read Replies (1) \| Respond to of 152472

>I think he must be strictly an RF engineer. I can't understand the explanation of CDMA. there are no 30 kHz channels. there are 64 overlapping 1.2288 Mhz wide channels, of which about 40-48 of these are used at any one time. Let us look at it this way ;-) Introducing one CDMA channel in an analog system- Guard band 9 AMPS Channels, CDMA Carrier Band 41 AMPS Channels, Guard Band 9 AMPS Channels. AMPS channels are -guess what- 30 kHz wide. By golly, is that what the 41 channels(30 kHz wide)=1.23 Mhz means? Add the 2 guard bands gives a total of 1.77 MHz for the first CDMA Channel? Add one more CDMA Channel using the same guard bands, use another 1.23MHz(once again those pesky 41 30kHz analog channels). Oh well, I did find it somewhat difficult to follow. >For CDMA(digital) there is 41 channels(30 KHz wide)=1.23Mhz of bandwidth. There is not a certain amount of calls that we are limited to for them 41 channels worth of bandwidth. It works like this: the more users you have, the higher your noise> ------------------------------------ ps: I cheated, I looked at page 105 in IS-95 CDMA and cdma2000 by Vijay Garg ;-)