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

To: John Biddle who wrote (20014)	3/6/2002 6:28:04 PM
From: mightylakers	Read Replies (1) \| Respond to of 196649

You are right for the most of the parts other than 8. This multi-mode phone is not a GSM1X phone, since it works as a GSM phone or as a CDMA1X phone, only the base station is doing anything that earns a GSM1X name As I have pointed out earlier, you still have messages that are transmitting between the GSM CN and phone. So a GSM1x phone will also use those signaling messages too. So the phone itself is also doing some GSM-MAP stuffs even when it is using CDMA way of transmitting the data. Anyway you are doing very well:-)

To: John Biddle who wrote (20014)	3/6/2002 7:12:51 PM
From: John Biddle	Read Replies (1) \| Respond to of 196649

Another question I have about GSM1x and how it works is when a carrier starts to put in GSM1x, can they do so on, say, half or less of their existing GSM spectrum, so that they wouldn't have to have their customers who still had GSM only phones roam to another carrier's network, but could use the portion of the spectrum the carrier left to GSM?

To: John Biddle who wrote (20014)	3/6/2002 9:47:33 PM
From: engineer	Read Replies (3) \| Respond to of 196649

Jeez....You shoulda been a systems engineer. Exactly. On teh flip side, A multimode phone which does GSM and CDMA1x can use any of the available netowkrs around the world if it has a SAIM/RIM card in it and follows the GSM call protocol. It would not care (technically speaking) if it were on a GSM network, a CDMA network or a GSM1x network, provided the phone had teh right network protocol software in it to handle all the differnt call mdoels for all these systems. So, what can each of them do? GSM1x can overlay systems where they have GSM to provide higher capacity. GSM1x can be overlaid in countries where they have both GSM and CDMA if the carriers wanted to have it that way. Dual mode phones could be used to roam if 1. they went to a country which was entirely GSM and tehy wanted to use it there. 2. They went to a country which was entirely CDMA1x and they wanted to use it there. 3. A GSM1x system. 4. Any mixture of the above. Note that also if they have GSM in the phone and WCDMA in the phone, they would cover just about all the air interfaces around. Adding UMTS would guarantee that they would make a call (technically speaking again) anywhere in the world. (on your other question....they have gsm channels which are each like 30 Khz wide, so they can drop out some of them to get to 1.25 Mhz wide slot and then put in ONE CDMA 1X carrier. this way they can keep like 10-15 gsm users and 40 CDMa users on the same 10 Mhz spectrum at the same time) Now for the last sticking point. You can use your Visa Card almost ANYWHERE in teh world wihtout any kind of giant check or barrier. Why can't carriers allow worldwide raoming from a billing and acceptance point of view? Why are we in teh dark ages for this, when the wireline guys have gotten it right (hint: has to do with a few coutr rulings FORCING the wireline guys to do it..).

To: John Biddle who wrote (20014)	3/8/2002 6:36:21 PM
From: Maurice Winn	Read Replies (1) \| Respond to of 196649

John, good summary, but I think the GSM MAP wireline equipment should be referred to as "legacy" rather than "heritage" in the soon-to-be European GSM1x world. "Legacy" implies obsolete, but still functional enough to get by. "Heritage" implies traditional and well worth holding on to down through the ages. If I understand the wireline end of it, the legacy GSM network is circuit-switched. When internet protocol is all the rage, circuit-switched is not going to be the good way to handle a big pile of data, which will include voice. But that could be totally ignorant - I'm sure there are a dozen technical whizzes who will correct my misunderstanding if necessary. Fingers crossed, Mq PS: When GSM1x gets a foothold in Europe, there will be powerful forces driving it: * Spectrum limits - moving subscribers to GSM1x will vastly increase capacity and therefore profits * BREW applications and 3G - subscribers love the stuff [see Korea for proof]. Companies not offering them will fail. * Price - GSM1x service providers will be able to undercut competitors using their huge capacity. Subscribers will want it. * Phone and device technology - hordes of CDMA licensees are producing a huge array of 3G devices. Subscribers will want them. *** RadioOne, SnapTrack and other technology will make GSM1x in huge demand.