1. Japanese Frequency Regulations Related to TGn Functional Requirements
Month 2002
doc.: IEEE /xxxr0
January 2004
Japanese Frequency Regulations Related to TGn Functional Requirements
Yasuhiko Inoue, Tomoaki Kumagai, Shuji Kubota
NTT Access Network Service Systems Laboratories
and
Yusuke Asai
NTT Network Innovation Laboratories
Y. Inoue, et. al., NTT
John Doe, His Company

2. January 2004
Outline
This presentation introduces the Japanese regulation that specifies the channel bandwidth for 5GHz band WLANs, and suggests a requirement for n devices.
Many Japanese companies support the conclusion of this presentation:
Matsushita Electric Industrial Co., Ltd.
NEC
SHARP
Toshiba
Y. Inoue, et. al., NTT

3. Frequency Regulations in Japan
Month 2002
doc.: IEEE /xxxr0
January 2004
Frequency Regulations in Japan
Radio Law
Radio Law Enforcement Regulations
Ministerial Ordinance of MPHTP
Radio Equipment Ordinance
Terminal Equipment Ordinance
Certification Ordinance, etc
Y. Inoue, et. al., NTT
John Doe, His Company

4. Regulations Related with Channel Bandwidth
January 2004
Regulations Related with Channel Bandwidth
Radio Law Enforcement Regulations:
Article 6: Used Frequency (5.170, 5.190, 5.210, MHz)
Radio Equipment Ordinance:
Article 6:
Occupied channel bandwidth allowance: <= 18MHz
Article 49-20:
Adjacent channel leakage power
Out of band radiated power
Y. Inoue, et. al., NTT

5. Conclusion Summary of Japanese Frequency Regulation:
January 2004
Conclusion
Summary of Japanese Frequency Regulation:
Only 20MHz operation is allowed in current Japanese radio regulations for 5GHz band wireless LANs.
Suggestion for TGn:
Operations using more than 20MHz bandwidth should not be mandatory for n devices.
Y. Inoue, et. al., NTT