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To: Clarksterh who wrote (12409)	7/15/1998 7:27:00 PM
From: Clarksterh	Read Replies (1) \| Respond to of 152472

Oops, made some 'minor' errors. Noise (or 'noise' as in CDMA orthogonal signals) doesn't add, it scales as a square root. Also, of bigger importance, the 'noise' (i.e. signal masquerading as noise) also scales so that: in CDMA the noise floor created by the intentional transmissions of other users is 30dB higher than the noise transmitted by the broadcaster (assuming a transmit S/N or 40 and 10 handsets in the cell). This should really be that the wideband S/N is not affected by the transmit noise floor since the signal (acting as noise) and the noise floor both scale by the sqrt(number of users). Thus, the transmit noise floor in CDMA is no more of an issue than in GSM. Such are the risks of doing link budgets without a real link budget. Clark