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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting -- Ignore unavailable to you. Want to Upgrade?

To: straight life who wrote (4876)	11/22/2000 12:44:05 AM
From: slacker711	Read Replies (1) \| Respond to of 196524

"AT&T now uses a digital cellular phone technology called TDMA, or time division multiple access, which is compatible with DoCoMo's W-CDMA, analysts said. " huh? Isn't that totally untrue? Completely and totally untrue.... I wonder how T is going to handle the transition to W-CDMA. If everything goes to schedule (doubtful) W-CDMA/GSM terminals arent going to be available until the beginning of 2002. I would imagine that the soonest that W-CDMA/TDMA terminals would be available would probably be at least 9 months to a year later. This would mean that T would be AT LEAST a year and half behind PCS/Verizon. I guess they could start building out a GPRS infrastructure immediately....however this would also require GPRS/TDMA handsets. This would probably be at least a year away if development began immediately. T would then require W-CDMA GPRS/TDMA handsets in 2003. The other option would be a W-CDMA/analog handset as soon as possible....this seems pretty moronic since most users would be roaming on analog much of the time. This would then require more spectrum....which would kill the advantages of CDMA. I'm really not exactly sure how T can handle the transition....it seems like they have no good options. The funny part is that I might just be ignoring the hardest part of the equation for T....what spectrum will they use? They could have a W-CDMA/TDMA handset that would require 700/800/1900MHz to operate. Frightening.... Slacker

To: straight life who wrote (4876)	11/22/2000 11:43:36 AM
From: engineer	Respond to of 196524

Totally differnt. The only thing they have in common is that they both use TDMA, but they both use it in a differnt way. Remember that Japan (NTT) wanted to isolate their market from the US ansd Euro phone makers so that they could lock out the market and in doing so created a stadnard which is incompatible with anything out side of Japan (PDC). If they wer compatible, then they would have been raoming in the US. PDC is not compatible with WCDMA at all either, the same for AT&T's TDMA system today. Yes, they both use TDMA, but ever other facet of the system is differnt. The reporter just shows how techno-stupid they really are. Goes to show that the AT&T marketing arms will be reaching to make this as postive as possible. Why on earth would the shareholders of T let Mike Armstrong get away with taking in money to cover up his extremely bad choices in how to actually make a profit? Are the T shareholders that gullible to just have the shadow puppets version of an earning report every time? They must all be just too uninvolved to care any more is all I can figure.

To: straight life who wrote (4876)	11/22/2000 12:11:27 PM
From: Eric L	Respond to of 196524

SL, In Re: "AT&T now uses a digital cellular phone technology called TDMA, or time division multiple access, which is compatible with DoCoMo's W-CDMA, analysts said." You asked: << huh? Isn't that totally untrue? >> I reacted the same way. At the very least it is a STRETCH. It is only true in the sense that dual-mode TDMA-GSM handsets are in the works allowing a modicum of compatibility. But ... The UWCC TDMA-EDGE guys into formed an alliance last year with the GSM guys in GSMA last year, and this summer 3GPP took over standards work from ETSI, and TDMA-EDGE from UWCC. IS-136 TDMA standardization seems to be taking a zig zag and IS-136 TDMA may disappear and along with the former path for convergence with GSM. Their may be more compatability than you and I are aware of in the works. As I've been (boringly) discussing with Ben WCDMA takes on a broader connotation than just the DS & TDD air interfaces. Potentially this is all good news for Qualcomm investors. We don't get paid on EDGE, but we sure do get paid on "WCDMA". - Eric -