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 Incorporated (QCOM) -- Ignore unavailable to you. Want to Upgrade?

To: Reagan DuBose who wrote (8557)	2/16/1998 9:05:00 AM
From: qdog	Read Replies (1) \| Respond to of 152472

Well, here is some interesting news for the upcoming CTIA. Seens W-TDMA is going to be pushed after all. Who is involved, none other than Ericsson. 199.171.136.202

To: Reagan DuBose who wrote (8557)	2/16/1998 12:43:00 PM
From: Raymond	Read Replies (1) \| Respond to of 152472

Reagan! I searched around in cdg.org but I couldn't find any quote about that CDMA wouldn't work.Then there are comments about the advantage of CDMA compared to other system and that is a completly other business.But enough about that.It's history. Gregg I have some comments about your post. "Setting a CDMA-airinterface on top of a TDMA/GSM infrastructure is probably suboptimal vis-a vis a greenfield CDMA deployment" IS-95 is using the network structure of IS-41 which is the standard used by the US analog and TDMA systems.So none of IS-95 or GSM is using a "CDMA infrastructure".My opinion is that the GSM network structure is superior to IS-41:s.This is one of the main reason why GSM is so successful around the world. About IPR:s.It is probably very difficult to make a WCDMA system without stepping on QCOM:s IPR:s.But I don't think QCOM should overplay their hand.In the W-CDMA system there is probably thousands of patents involved.IS-95 and QCOM is using the signalling interfaces of IS-41 without saying sorry.They haven't been involved with the research in that area.Ericsson and Lucent are 2 of the most important players there.I don't know how much Dr Viterbi gets for his encoding patents used by for example GSM.There are hundred examples like that. I don't know how unique QCOM:s patents are compared to all the other ones used in WCDMA.A question for this thread.What is the timespan of the validity of the patents in this area? Does QCOM have this patents forever? I like to answer your question about any advantages with W-CDMA compared to IS-95. 1. The most important.W-CDMA will not be owned by any company.No big licensing money to be paid. 2. Built on GSM network structure. 3. A newer standard.10 years of experiences with IS-95 has made it possible to come up with better solutions in a couple of areas.They will for example use mobile assisted handover for hard handover. I know.All this stuff can be put in to a IS-95 system also.But then it will not be backwardcompatible with older mobiles.Thats the problem with changes in the airinterface. This is my last post for now in this area /R