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To: Ruffian who wrote (2352)	9/25/1999 4:10:00 PM
From: D.J.Smyth	Read Replies (4) \| Respond to of 34857

ruffian, Airtouch, Samsung and Sprint and Qualcomm chose CDMA. Need more be said? Behind closed doors they talk in low tones. In public they smile and sell and have, thus far, been taking in larger premiums. The fewer the players intially, the larger the premiums. The fewer the SIGNIFICANT players who had opportunity to wield a different and new sword, the higher the probability that a newer technology would be accepted. CDMA was developed in WWII. TDMA was developed later as a subsequent, less costly, system and was for sometime a more efficient method of sending messages. CDMA claims 10 to 20 over analog, but in reality, in places where CDMA has been operating for sometime, CDMA has been delivering much less (this is only said privately now - but if they can't fix the problems that have come up, it will become greater public knowledge). Give Q credit for bringing CDMA to full mobility with handoff architecture and frequency reuse designs which were marvelous. However, GSM/TDMA buildouts are still 1/2 the cost. If you have a TOTAL mobile user population, of say, 5000 for a given area, and you, the operator has the option of choosing bw CDMA and GSM/TDMA, you'll most likely choose the less costly system per user as the population of users is known - the population count won't change for the forseeable future (ten years). Also, if you can both initially install and upgrade your less costly GSM/TDMA system to a 3G system later for a total cost that is LESS than installing your original CDMA narrowband system, why install CDMA narrowband mobile or fixed? Currently, for data, there are 3G TDMA based systems in operation that are "more advanced" (cost wise and frequency reuse) than either narrowband or wideband CDMA systems for data. Voice quality bw CDMA and GSM/TDMA systems are now a non-issue; MOS scores with the TDMA vo-coders clearly indicate voice quality equal to CMDA (prior to 1997 it was an issue). These are some of the questions current GSM/TDMA operators are asking themselves.