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Technology Stocks : Leap Wireless International (LWIN)
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To: RalphCramden who wrote (2266)6/26/2002 2:30:05 AM
From: engineer   of 2737
 
**** >1X was introduced later because it wasn't available >sooner, if it had been available initially, it's cheap >enough that it would have been installed from day
one.

This may be almost true, but I don't think it is true yet. ****

Defintely not true. the coding techniques that are used in 1x were not around in 1990 when IS-95 was designed. Far more powerful coding schemes were developed such as turbo coding and newer modulation techniques to allow more bits per hertz. Having said this, we could see orders of magnitude more frequency effeciency over time as we gain more powerful techniques and more powerful coding schemes. the cost of 1x is due to a few factors. It takes more chip area and more power to do the 1x coding waveform than it does to do the IS-95, hence the chips must cost more and be redesigned to get the same power ( battery) levels. all this costs money.

Also as we progress, we will see them redesigned again and again year after year to allow for ever more techiques. duplicate receivers with multiple antennas is next which allows almost a doubling again of coding gain. again, this is chip area and power, so newer technoliges and more redesign to reduce power and die size must be done.

And so it goes, year after year......
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