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To: gdichaz who wrote (13363)	7/4/2001 2:34:45 PM
From: 49thMIMOMander	Respond to of 34857

WCDMA voice will be "circuit switched" with "packet" voice phased in gradually, obviously. Just as obviously the data can go either way, depending on application, network and packet, IP WWW-like delayes. Nobody wants to have some crappy networks with 45 second to 2 minute delays for voice as kind of happened with SMS. Ilmarinen

To: gdichaz who wrote (13363)	7/4/2001 4:21:21 PM
From: Eric L	Read Replies (1) \| Respond to of 34857

Chaz, << Especially that WCDMA will be "circuit switched" with "packets" phased in gradually >> Lets start with data (not the voice references in the article which adresses the evolution to the all IP RAN), but make sure we distinguish between voice and data. As noted here before by me several times Isle of Man with 1 NEC handset and NEC infra (initially then Siemens) is/will operate in WCDMA CSD mode at 64 kbps up and down, before Packet Data is exercised. Depending on application one or the other will be used. Some of the reasons for this are stated in the HSCSD FAQ I published (particularly in section VIII: Message 15975529 DoCoMo is making use of both PSD & CSD for FOMA, and which is used is again dependent on application, and also on handset or modem card. FOMA WCDMA 'i-mode' is currently peak 384 kbps PSD on the downlink with 64 kbps PD on uplink, but video apps right now are 64 kbps CSD. I've posted the links (Manx & FOMA) several times. << That means that voice will be the same in 3G as it is in 2G today. >> What is 1xRTT voice? << even voice will eventually be packetized >> The all IP RAN. << This will not happen overnight and there will still be a need for circuit switched components in the network.>> Important to note. << Next year we will see the rapid growth of GPRS and the first 3G deliveries with open standards in the 1H 2001. Large-scale volume deliveries will start in 2H as we move into volume production. Mass-market commercial launch of 3G networks will be in 2002 and this is when 3G really starts to fly. To make that happens, Nokia says, "we have to deliver on our promises". >> I'm not to sure when this was written, but obviously in 2000, and it sounds like maybe Q3 2000, when it was anticipated that the December 'R99' release would be the forward compatible release. << And the timetable, some of which seems to have already passed, permits comparison of "commitments" and actuality. That comparison should raise eyebrows. >> Do you mean like when I raised my eyebrows last September when the Qualcomm MSM5105 chipset was introduced, bumping the MSM5100 which was scheduled to sample Q4 right on the roadmap, and when I raised my eyebrows again when Qualcomm announced in mid April 2001 that they were pleased to announce the "on time" sampling of the MSM5100? Did you raise your eybrows on that one? Looks like there is in fact a 3 to 6 month lag here, probably closer to 3 than 6. We will of course have to wait for Nokia guidance on what has shipped and will shipped, and when. - Eric -