January 2004 doc IEEE 802 11 040033 r

January 2004 doc. : IEEE 802. 11 -04/0033 r 0 Japanese Frequency Regulations Related to TGn Functional Requirements Yasuhiko Inoue, Tomoaki Kumagai, Shuji Kubota, Yusuke Asai NTT Submission 1 Y. Inoue, et. al. , NTT

January 2004 doc. : IEEE 802. 11 -04/0033 r 0 Outline • This presentation introduces the Japanese regulation that specifies the channel bandwidth for 5 GHz band WLANs, and suggests a requirement for 802. 11 n devices. • Many Japanese companies support the conclusion of this presentation: – – Company 1 Company 2 Company 3 Company 4 Submission 2 Y. Inoue, et. al. , NTT

January 2004 doc. : IEEE 802. 11 -04/0033 r 0 Frequency Regulations in Japan • Radio Law Enforcement Regulations • Ministerial Ordinance of MPHTP – Radio Equipment Ordinance – Terminal Equipment Ordinance – Certification Ordinance, etc Submission 3 Y. Inoue, et. al. , NTT

January 2004 doc. : IEEE 802. 11 -04/0033 r 0 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: <= 18 MHz – Article 49 -20: • Adjacent channel leakage power • Out of band radiated power Submission 4 Y. Inoue, et. al. , NTT

January 2004 doc. : IEEE 802. 11 -04/0033 r 0 Conclusion • Summary of Japanese Frequency Regulation: – Only 20 MHz operation is allowed in current Japanese radio regulations for 5 GHz band wireless LANs. • Suggestion for TGn: – Operations using more than 20 MHz bandwidth should not be mandatory for 802. 11 n devices. Submission 5 Y. Inoue, et. al. , NTT