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RECENT NEWS FLASH 2000-15 (May 2000) (Updated on May 15, 2000) TECHNOLOGYFCC
Opens Door for New Wireless Technology:
Ultra-Wideband
Federal
regulators took a step toward legalizing "ultra-wideband"
wireless. It holds the promise of dramatically reducing the pressure on the
wireless spectrum that carries mobile phone voice conversations and,
increasingly, data transmissions. The technology has been caught in
regulatory and patent
battles for the past several years but the Federal Communications Commission
(FCC) gave a tentative
thumbs-up to the technology's use but acknowledged concerns it could
interfere with some key existing technologies such as the global positioning
system (GPS). FCC chairman William Kennard has identified this problem of
scarce spectrum as one of the most critical issues facing the wireless
industry and feels that ultra-wideband could help reduce this pressure.
Already some of the big cell phone companies have found themselves at
capacity in some markets and this problem will only get worse as
applications such as high-speed Internet access move to wireless. The technology differs from traditional wireless communications in both its use of the spectrum and in the different capabilities of the transmissions. Most cell phones use a small slice of wireless "airwaves" to send their information. By contrast, ultra-wideband sends signals across a huge swath of the spectrum, but at power so low that the receiver at which it’s pointed can’t distinguish it from the background static. Security is good as well. The U.S. military already uses a communications handset created by Time Domain because the transmissions cannot be pinpointed or tapped as easily as traditional mobile services. Using a customized Application Specific Integrated Circuit (ASIC) design, Time Domain was the first to miniaturize the technology and produce an Ultra Wideband chip. Initially,
the services were created as radar tools, which can see through walls when
traditional radar is blocked. That could allow such things as devices
allowing firefighters to see who or what is in burning buildings or helping
rescue workers find earthquake victims trapped underneath rubble. It also
acts as a positioning device far more accurate than ordinary global
positioning services. The
FCC is asking for a few more tests before it gives its final approval for
the technology to be used. The process for final approval will likely
stretch on at least until early next year. For more
information, go to http://news.cnet.com/news/0-1004-200-1857730.html?tag=st Mobileinfo
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