Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

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

To: mightylakers who wrote (4960)	11/26/2000 1:25:52 PM
From: Eric L	Read Replies (1) \| Respond to of 197155

Lakers, << Well, you are partially right >> Good. I like to be at least partially right. <g> << If you are talking about whether a user want that dual mode ability then you are right >> I was not exactly talking about dual mode ability. I may not have made my point clearly, and still may not be doing so. I was really talking about an existing GSM operator installing a cdma overlay to take advantage of the spectral efficiency it offers as compared to the GSM air interface or the GSM air interface with a GPRS data overlay. Interoperability with a cdma network, for roaming, is a separate, although possibly related consideration. No major GSM carrier will want to give up complete interoperability with other GSM carriers as it relates to roaming, 2 way SMS, and GSM data services. I am not sure that shipping Qualcomm chipsets achieve this, and certainly none that offer 1xMC do. << The air interface in MC-MAP is still backward compatible with IS-95 >> My point was that while shipping 2G CDMA chipsets can authenticate to a GSM network and are fully backward compatible with IS-95, they are not fully backward compatible with GSM to the degree that any GSM network operator would care to implement an overlay on a commercial basis today. The IS-2000 related cross modal specifications address this. It is now up to manufacturers (and Qualcomm) to commercialize this capability. I suspect they will. My impression is that simply having a SIM/R-UIM I/O in a handset doesn't get us quite where we need to be to realize the dream of commercialization of the (so far) elusive "CDMA Overlay". I do think we are getting closer, and of course I could be all or partially wrong. - Eric -