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To: tradeyourstocks who wrote (6849)	8/4/2000 1:55:32 PM
From: Allen	Read Replies (1) \| Respond to of 34857

Tero - do you have any idea what you're talking about? <European operators naturally went with W-CDMA to get the easiest upgrade from GSM-GPRS.> Last I checked, there was no upgrade from GSM-GPRS to W-CDMA, only to EDGE. I don't mind being wrong, so please explain if you know how to upgrade the GSM air interface to a CDMA air interface without replacing the thing. You do understand, don't you, that there's a lot more to a wireless network than just the air interface? Now, someone can correct me if I'm wrong on this, as I'm just now getting into and reading the CDMA2000 standards. But, my understanding is that CDMA2000 is not backward compatible with IS-95B. Specifically, you can't use an IS-95B mobile with a 3xRTT base station. Don't you think this is going to cause IS-95/CDMA2000 service providers nearly as much grief as the GSM/GPRS to WCDMA discontinuity. And worse than that, HDR is not compatible with any of the IS-95/CDMA2000 technologies. HDR employs TDMA rather than CDMA in the high speed forward link. A mobile that's expecting to receive a TDMA signal is going to have a hard time connecting to any of IS-95B, 1xRTT or 3xRTT base stations. The evolution to 3G is difficult for everybody.

To: tradeyourstocks who wrote (6849)	8/4/2000 2:26:49 PM
From: tero kuittinen	Read Replies (2) \| Respond to of 34857

What's with this air interface obsession? I'm talking about the core of the network. The core of W-CDMA networks overlaid on GSM will use GPRS for packet-switched data. Nobody is "replacing" GSM, no matter how tempting that may sound. The W-CDMA handsets in GSM markets will incorporate GSM and GPRS. Data is being moved via W-CDMA networks when possible. And it's not possible for years outside of major cities. There is no mass market for W-CDMA phones that do not offer GSM multi-mode features outside of Korea and Japan. When you see an announcement of a W-CDMA deal, the dollar amount does not refer to air interface. It also refers to massive core network expansion and updating work. Which has nothing to do with the air interface. Finland had the 3G auction more than a year ago and one of the contenders was planning cdma2000. They did not follow through. Interviewed Finnish government official specifically stated that the standard is not mandatory - as long as one contender picks W-CDMA and guarantees roaming for people visiting Finland, the rest can do as they please. There are masses of newspaper articles on this in Finnish. This information did not get any coverage in USa as far as I know. Two years ago DoCoMo was supposed to launch W-CDMA in March 2001. That has now slipped to April 2001. No more, no less. Tero Tero