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To: EJhonsa who wrote (84526)	10/23/2000 8:07:10 PM
From: mightylakers	Read Replies (2) \| Respond to of 152472

Based on these passages (correct me if I'm wrong), the impression I got was that a 1x/3x overlay on a GSM-MAP core would require the use of an entirely different set of handsets and base stations Yes and no, I think the chips need to be changed in order to handle the GSM-MAP, both handset and basestation. However, I don't see the need to change the basestation when there's no such need, i.e. where the backbone networks is not GSM-MAP based. As a matter of fact, the works need to be done should be similar to what NTT DoCoMo has to do to migrate into UMTS version of WCDMA. The only different part as I can see is on the GSM side, because if you want to have that seamless interoperability between a GSM carrier and a CDMA carrier, you need help from both(same thing in WCDMA, with different methods). So the problem is not about technology but..., you know. So it would be interesting to see whether China, more specifically Unicom, could be the test bed for the CDMA2000/GSM-MAP.