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Doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 1 Japanese Frequency Regulations Related to TGn Functional Requirements.

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Presentation on theme: "Doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 1 Japanese Frequency Regulations Related to TGn Functional Requirements."— Presentation transcript:

1 doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 1 Japanese Frequency Regulations Related to TGn Functional Requirements Yasuhiko Inoue, Tomoaki Kumagai, Shuji Kubota, Yusuke Asai NTT

2 doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 2 Outline This presentation introduces the Japanese regulation that specifies the channel bandwidth for 5GHz band WLANs, and suggests a requirement for 802.11n devices. Many Japanese companies support the conclusion of this presentation: –Company 1 –Company 2 –Company 3 –Company 4

3 doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 3 Frequency Regulations in Japan Radio Law Radio Law Enforcement Regulations Ministerial Ordinance of MPHTP –Radio Equipment Ordinance –Terminal Equipment Ordinance –Certification Ordinance, etc

4 doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 4 Regulations Related with Channel Bandwidth Radio Law Enforcement Regulations: –Article 6: Used Frequency (5.170, 5.190, 5.210, 5.230 MHz) Radio Equipment Ordinance: –Article 6: Occupied channel bandwidth allowance: <= 18MHz –Article 49-20: Adjacent channel leakage power Out of band radiated power

5 doc.: IEEE 802.11-04/0033r0 Submission January 2004 Y. Inoue, et. al., NTTSlide 5 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 802.11n devices.

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