Replies to post #40556 on InterDigital Inc (IDCC)

[mschere]

Thank you for the input..Here is the same source ..and he had three more months to think about it..

Posted by: Eric 1xev-dv do
In reply to: budro who wrote msg# 5147 Date:8/8/2003 9:47:55 AM
Post #of 5163

3GSM (UMTS) W-CDMA & CDMA2000

b,

<< Eric, it occurs to me that 1X and WCDMA will probably become practically one and the same, or close to it by the time WCDMA becomes a common thing, if it ever does. >>

I tend to agree with you.

1xEV-DV in CDMA2000 Release C (or eventually Release D where the reverse link is completed) on the evolved ANSI-41 core upgraded with the IMS subsystem, will in fact functionally look very much like 3GSM WCDMA with the HSDPA extension (Release 5 completed in Release 6) on the evolved GSM core with the IMS subsystem added. and there won't be much difference in spectral efficiency, one to the other, contradictory dueling vendors slideware aside (assuming same frequency plan).

Actually, CDMA2000 Release A (the IMT-2000 3G standard accepted by the ITU in May 2000, as opposed to its Release 0 predecessor currently implemented) which supposedly is now trialing in Korea] and which may or may not ever be implemented on any scale although I suspect some features of it will be, with new radio coding and spreading rates that bump forward and reverse link peak transmission rates to ~283 kbps (307 kbps less overhead), while adding voice and data multitasking, enhanced QoS, and bumping csd to 64 kbps, from a performance point of view, won't look all that much different to a user than 3GSM WCDMA Release 99/4 when implemented and networks are optimized, provided they are implemented in the same frequency plan.

Applications for either after they've evolved as a result of the enablers currently being standardized in OMA, won't look much different either, and although we'll never see convergence of 3GPP and 3GPP2 standards, we will continue to see ongoing harmonization and eventually much higher levels of interworking and interop.

Users, whether enterprise or consumer, really won't be able to distinguish one from the other, and where they have the choice, they will make provider decisions based on coverage, capacity, and cost, as well as content and customer service and support.

I'll leave the 1xEV-DO TDM/CDM hybrid out of this discussion because although properly part of the CDMA2000 family (and currently using 1xRTT on Reverse Link) and accepted by the ITU under the IMT-MC umbrella as a 3G standard, the standard exists and is being evolved outside CDMA2000 Releases, and unlike any of the others referenced prior, it does not integrate voice and data in the same carrier. Nothing wrong with that, but it puts it in a slightly different category relative to your statement.