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World's First TV White Space Prototype Based on IEEE 802.22 for Wireless Regional Area Network



   World's First TV White Space Prototype Based on IEEE 802.22 for Wireless
                            Regional Area Network

PR Newswire

TOKYO, Jan. 23, 2013

TOKYO, Jan. 23, 2013 /PRNewswire/ -- The National Institute of Information and
Communications Technology (NICT), Hitachi Kokusai Electric Inc. and ISB
Corporation have developed the world's first prototypes of base station (BS)
and consumer premise equipment (CPE) based on the IEEE 802.22 standard
operating in TV White Spaces (TVWS) (470 MHz - 710 MHz). The developed
prototypes will provide broadband wireless access to underserved and unserved
regional areas around the world as well as bringing reliable backup broadband
communications in emergency, which will follow the worldwide trend of
promoting the TVWS for wireless communication systems.

Background
From replacing the current analog television (TV) technology with digital
television technology, some of the spectrum previously used by analog
television become vacant referred to as TV White Space (TVWS). The Federal
Communications Commission (FCC) in the United States, the Office of
Communications (Ofcom) in the UK, and the Ministry of Internal Affairs and
Communications in Japan have initiated opening up the TVWS to wireless
communication systems for efficient reuse of the unused TV spectrum, which is
based on non-interfering with broadcast incumbents' operation. The IEEE 802.22
Working Group has published the IEEE 802.22-2011 standard for TVWS broadband
wireless access to regional areas where it is most needed and where the TV
spectrum is least used. In particular, the IEEE 802.22 systems offer around 10
times the coverage of Wi-Fi as well as enable to provide reliable backup
broadband communications in emergency. However, there is no TVWS systems based
on the IEEE 802.22-2011 satisfying the FCC spectrum requirements.

Achievements
The NICT and Hitachi Kokusai Electric Inc. have developed the world's first
prototype devices of base station (BS) and consumer premise equipment (CPE)
verifying the physical layer (PHY) and the medium access control (MAC) layer
design based on the IEEE 802.22 standard in the TVWS (470 MHz - 710 MHz). The
PHY part developed by Hitachi Kokusai Electric Inc. (Note 1) allows the
devices to use vacant TV bands over the frequency range from 470-710MHz, the
MAC layer part developed by NICT provides a medium access method based on
point-to-multipoint access with supporting the different QoS levels, and
supports cognitive capabilities of interference estimation, geo-location and
white space data base (WSDB) access over the IP. The WSDB (Note 2)
(http://whitespacetech.isbcorp.com/) provided by ISB Corporation avoids
interference to incumbents of TV broadcasters from automatically selecting the
non-interfering TV band. 

Future prospects
The NICT, Hitachi Kokusai Electric Inc. and ISB Corporation in the future will
develop the enhanced technologies based on the IEEE 802.22 standard and also
work closely with WhiteSpace Alliance (WSA) (Note 3)
(www.whitespacealliance.org) to provide products for worldwide markets. The
NICT, Hitachi Kokusai Electric Inc. and ISB Corporation will demonstrate the
developed prototype devices at the Super WiFi Summit (Note 4)
(www.superwifisummit.com) in Miami, Florida, from January 30 to February 1,
2013.

For more information about the prototype, please see the NICT press release at
http://www.nict.go.jp/en/index.html or
http://www2.nict.go.jp/wireless/smartlab/index.html .

Remarks
All standard organization, alliance, product, and service names that appear in
this press release are trademarks or registered trademarks of their respective
owners.

Notes:
(1) The PHY part developed by Hitachi Kokusai Electric Inc. was conducted
under a contract of R&D for broadband access in white space, organized by the
Ministry of Internal Affairs and Communications, Japan.
(2) The WSDB provided by ISB Corporation is based on the technologies of WSDB
by NICT (Press release: http://www.nict.go.jp/en/press/2012/06/07en-1.html).
Based on the technologies, ISB Corporation newly developed a product that
meets commercial requirement and is complied with U.S TVWS database
requirements. (http://whitespacetech.isbcorp.com/)
(3) White Space Alliance (WSA)  is an international alliance to promote the
development, deployment and use of standards based products and services as a
means of providing broadband capabilities via White Space spectrum. 
(http://www.whitespacealliance.org/)
(4) Super Wi-Fi Summit is an international event to create a wealth of new
opportunities in the White Space spectrum for consumers, enterprises, service
providers and device manufacturers. 
(http://www.mobilitytechzone.com/super-wifi/)

Technical Contact:
Hiroshi Harada, Changwoo Pyo
Smart Wireless Laboratory
Wireless Network Research Institute
NICT
Tel: +81-46-847-5076
E-mail: swl-white-space@wireless.nict.go.jp

Masahiro Asano
Engineering Development Department Business Planning Center
Video & Communication Systems Division
Hitachi Kokusai Electric Inc.
Tel: +81-42-322-3111
E-mail: asano.masahiro@h-kokusai.com

Masanori Hirama
New Business Promotion Office
ISB Corporation
Tel: + 81-3-3490-1761
E-mail: contact_white_space@isb.co.jp

Media Contact:
Sachiko Hirota
Public Relations Department
NICT
Tel: +81-42-327-6923
E-mail: publicity@nict.go.jp

SOURCE National Institute of Information and Communications Technology (NICT)

Website: http://www.nict.go.jp/en/index.html
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