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IEEE
STANDARD AMENDED TO SUPPORT 4.9 AND 5 GHZ BANDS FOR INDOOR, OUTDOOR,
AND MOBILE USE IN JAPAN
IEEE
802.11j Shows Adaptability and International Support of IEEE Standards
by Enabling New Spectrum and Applications
Contact:
Stuart J. Kerry, Chair of the 802.11 Working Group
408-348-3171; stuart@ok-brit.com
or
Karen McCabe,
IEEE Senior Marketing Manager
+1 732 562 3824, k.mccabe@ieee.org
PISCATAWAY,
N.J., USA, 29 November 2004 With the opening of new wireless
bands for indoor, outdoor, and mobile use in Japan, the IEEE has
approved an amendment to IEEE 802.11™ to support the new
spectrum and their designated applications. The amendment, IEEE
802.11j™, will enable WLAN vendors to offer wireless products
that adapt to new frequencies, different channel widths, and operating
parameters.
"With
existing spectrum used by more and more products, IEEE 802.11j
was developed by leading international experts to allow WLAN products
to take advantage of new frequencies and operating modes,"
said Stuart J. Kerry, Chair of the IEEE 802.11 standards committee.
IEEE 802.11j, "Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications: 4.9 --5 GHz Operation in
Japan," takes advantage of spectrum and technology that has
emerged since the original IEEE 802.11™ standard was written
in 1997. In August 2002, the Japanese Government published new
rules to use 4.9 and 5 GHz bands in hot spot (indoor), fixed (outdoor),
and nomadic (mobile) modes using Wireless LAN technology. IEEE
802.11j amends IEEE 802.11 to deliver a standard method of supporting
these capabilities with new technologies such as the ability to
change channel widths and dynamically modify radio capabilities.
"We wrote
this amendment to enable IEEE 802.11 to scale to new regulatory
requirements and uses envisioned by carriers, manufacturers, and
end users around the world," said Sheung Li, Chair of the
IEEE 802.11j Task Group.
The amendment
is targeted to the new Japan rules, and allows IEEE 802.11 networks
to communicate and move to any new frequency, change the spectrum
footprint to improve performance or user capacity, and communicate
new rules and operating parameters to support both indoor and
outdoor modes. Depending on the manufacturer, IEEE 802.11 products
may be upgraded to use IEEE 802.11j features to take advantage
of these new capabilities.
"These
and other enhancements in the amendment should assure that IEEE
802.11j-based wireless LAN products can meet the growing needs
of IEEE 802.11 WLAN applications in Japan and other markets,"
Kerry said. IEEE 802.11 standards form a family of specifications
that define how WLAN equipment should be produced so equipment
from different manufacturers can work together. IEEE 802.11j was
developed by the IEEE 802.11 Working Group, which is sponsored
by the IEEE 802® LAN/MAN Standards Committee of the IEEE Computer
Society. For further information, visit: http://www.ieee802.org.
About the
IEEE
The IEEE has more than 360,000 members in approximately 175 countries.
Through its members, the organization is a leading authority on
areas ranging from aerospace, computers and telecommunications
to biomedicine, electric power and consumer electronics. The IEEE
produces nearly 30 percent of the world's literature in the electrical
and electronics engineering, computing and control technology
fields. This nonprofit organization also sponsors or cosponsors
more than 300 technical conferences each year. Additional information
about the IEEE can be found at http://www.ieee.org/.
IEEE 802.11,
802.11j are trademarks of the IEEE. All other names or product
names are the trademarks, service marks or registered trademarks
of their respective holders.
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