HHH

1
Proposal on Establishment of a New Expert Group
on Millimeter-Wave Communication Systems
March 29, 2005 Hiroyo Ogawa hogawa_at_nict.go.jp Yo
kosuka Radio Communication Research
Center National Institute of Information and
Communications Technology Incorporated
Administrative Agency
2
Technical Regulation of Unlicensed Band
Licensed Band?
Unlicensed Band?
54.25
59
66
GHz
Technical Regulation for Unlicensed Band in Japan
Output Power lt 0.01W Power Deviation 50,
-70 Antenna Gain lt 47dBi Frequency
Deviation 500ppm Occupied Bandwidth lt
2.5GHz Spurious lt 100µW
3
Features of 60-GHz Frequency

• High propagation attenuation by oxygen
  (16dB/km_at_60GHz)
• Miniaturization of circuits and devices
• Line-of-Sight communication basically
• Avoidance of frequency interference using high
  antenna directivity
• Penetration of wall between rooms and high
  attenuation of outside wall
• Utilization of reflection by wall and ceiling for
  communication

4
Applications of 60-GHz Unlicensed Band

• Video Distribution System
• Short-Range Ad-hoc System
• Personal Area Network System (WPAN)
• Local Area Network System (WLAN)
• Vertically-Connected Wireless Link
• Fixed Wireless Access System
• Collusion Avoidance Radar
• Intelligent Transport System

5
Millimeter-Wave Video Distribution System
6
Millimeter-Wave AdHoc System
Home Area Network
Ad-Hoc Meeting
Digital KIOSK
In Train
7
Vertically-Connected Wireless Link of Satellite
Broadcast Channel for Apartment Subscribers
8
Demonstration at TSMMW2004 at YRP
RF Unit of AP
RF Unit of AP
AP-AP Link
AP-MT Link
AP-MT Link
AP-MT Link
RF Unit of MT
TSMMW Topical Symposium on Millimeter Waves
9
60-GHz Products from Japanese Companies
NEC Engineering Ltd.
MASPRO DENKOH Co.
Hitachi Kokusai Electric Inc.
SHARP Co.
10
Activities on 60-GHz Standard within Other
Standardization Body

• Millimeter-Wave Study Group (SG3c) was organized
  within IEEE802.15 on July 2003, and
  Millimeter-Wave Task Group (TG3C) was finally
  approved on March 2005.
• Millimeter-wave Special Interest Group was
  organized within MMAC Forum on July 2004.
  Multimedia Mobile Access Communication (MMAC)
  Forum will propose Japanese standard for wireless
  access systems to ARIB (Association of Radio
  Industries and Businesses) to make an ARIB-STD.

11
Conclusion

• Propose on a new Expert Group on millimeter-wave
  communication systems within ASTAP
• Survey and discuss of the appropriate framework
  on the structure of 60-GHz millimeter-wave
  communication systems
• Make a contribution to International and Regional
  Standardization Organization such as ITU
• Develop the World Wide Standards on the framework
  of the structure of 60-GHz millimeter-wave
  communication systems
• We would like to discuss within Wireless Joint
  Expert Group
• Rapporteur Dr. Hiroyo Ogawa, NICT, Japan