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To: Bernard Levy who wrote (1938)	8/8/1999 9:50:00 PM
From: Labrador	Respond to of 5853

Regarding Globalstar. Lehman report. lehman.com

To: Bernard Levy who wrote (1938)	8/18/1999 6:59:00 PM
From: Maurice Winn	Read Replies (1) \| Respond to of 5853

VDMA Here are Bernard's two objections: <Users will not waste their battery power in this manner, and there is absolutely no guarantee the user density would be enough to make the scheme reliable> Battery power won't be of interest. Fuel cells will provide heaps of energy. Power supply won't be an issue. Power demand will be really low too because the electronics/photonics in the gadgets will be really efficient. The radio section of the energy consumption would be low too because the noise levels would be low. The more crowded the area, the narrower the pathway of the signal from handset to handset. Because each handset would be power controlled to send the signal just as far as the next handset, the signal would start to look like a laser [in a real crowd] travelling 2 metres to the next handset, so the signal 'width' would be only 2 metres. The signal would be handed off along the way to the nearest base station where it would dive into fibre to appear at the destination 10,000km away. So to make a call, the handset would use trivial power. Much less than in a normal cell system. 10 handsets would use a tiny amount of power each to reach the basestation, instead of one noisy handset screeching at the top of its voice, sending noise in all directions, polluting the spectrum all round. I'm making this up as I go, so maybe some real electronics people could point out why that's wrong if it is. Anyway, so power consumption would be lower and no problem with ethanol fuel cells anyway. That also means that the spectrum capacity would be hugely increased because increased noise = reduced capacity. On user density making it work, there would be enough because if the alternative is base stations, these would only be built where there are a lot of users. They won't be in the desert. So a desert roamer will not be able to send a VDMA signal. They'd have to use Globalstar. But if there are 100 handset owners in an area, say a tiny town, that would not be enough for a base station to be built but would be enough for a link to a mini base station. If a person was out of range of a base station on the periphery of a city, they could link in much like a highway is these days covered by repeater stations. So far, I can't see any problems with VDMA. Just benefits. Any more reasons why it won't work appreciated. Mqurice. [Damn, just noticed this isn't the Qualcomm thread - oh well. Maybe somebody will answer]