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

To: Theophile who wrote (9018)	3/25/2001 12:04:26 PM
From: saukriver	Respond to of 197036

Your question seems to be asking what happens to data rates and voice capacities as cell load increases. Not my question. This portion of the discussion started Thursday night-early Friday morning from FedWatcher at Message 15552041 He asked "So, I am still curious, if ten people download data at the same time, what is the effective data rate in 1xRTT cell and in GPRS cell?" I am not sure the discussion so far has properly addressed it. You contributed that there is a difference between peak data rates (user experience) and max thruput (system operation). I am still struggling with what is Verizon talking about in the release announcing "With 1XRTT, . . . networks will be capable of moving data at rates up to 144 kilobits per second (kbps), 10 times faster than generally available today." Message 15528849 So, we have "capable of moving data?" from VZ's announcement on 1xrtt. "Peak rate," "thruput," from QCOM's white paper (explaining the obvious difference) before it disintegrates into a chart using the new term "Mature Average Network Throughput?" Then, we have JGoren's post at 8998 saying that "The way the 1x works is that it links 8 independent voice channels together. So you get a maximum of 8 X 14.4k thruput." This would put the maximum throughput at 115.2k, which seems inconsistent with 144kbps from VZ. Either that doesn't address the original query from FedWatcher (which I thought had more to do with peak rates), it is the maximum network throughput with 1xrtt, or he meant to say 10x14.4 in which case the numbers match precisely to what VZ says. The announcement (dated this coming monday, march 26) recently posted from Burst Wireless this a.m. contains another confusing statement: Burst is deploying a data-centric network that utilizes cdma2000 technology, a third-generation (3G) wireless standard. Burst’s service will initially rely upon a 1xRTT platform that supports data transmission speeds up to 144 kbps, three to five times faster than current dial-up speeds. The network will be upgraded to 1xEV-DO, which will support access speeds up to 2.4 Mbps, significantly enhancing data throughput rates for wireless Internet users. Are "data transmission speeds" peak rates (from user experience) or network throughputs? Thanks so much for your input on the tradeoff of voice v. data and network configuation options. It may just be that the data rates from cable modem and dsl promotions does not translate readily to the wireless world. Still, I expect the wireless operators to continue to market data transmission in that vein, and I am interested in a better explanation of FedWatcher's original question. (I miss Engineer.) saukriver