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MMAC T71 Ad Hoc WG Liaison Report. July 2003 Yasuhiko Inoue NTT. MMAC Overview. MMAC ( M ultimedia M obile A ccess C ommunication Systems Promotion Council) An organization in the ARIB (Association of Radio Industries and Businesses). Activities:
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MMAC T71 Ad Hoc WGLiaison Report July 2003 Yasuhiko Inoue NTT Y. Inoue, NTT
MMAC Overview • MMAC (Multimedia Mobile Access Communication Systems Promotion Council) • An organization in the ARIB (Association of Radio Industries and Businesses). • Activities: • Investigation and study on system specifications • Demonstrative experiment • Information exchange and popularization activities, etc • Working Groups • High Speed Wireless Access • 5GHz Mobile Access (Wireless Access and Wireless LAN) • Wireless Home-Link (Wireless 1394) Y. Inoue, NTT
T71 Ad hoc Working Group • Technical requirements and specifications for CSMA based WLAN systems in Japan which corresponds to 802.11a. • MPHPT allocated 4.9-5.0GHz and 5.030-5.091GHz for wireless access systems in September 2002. • Technical Requirements: Radio Equipment Ordinance, Article 49-21 • T71 Ad hoc WG has been created to revise the current ARIB STD-T71 to incorporate the technical requirements for 5GHz Band Wireless Access systems. • Member companies: Atheros, Canon, Denso, Fujitsu, Hitach Cable, Intel, Japan Telecom, JRC, Mitsubishi, Murata, NEC, NTT, TOYOCOM, Panasonic, Samsung, SpeedNet, TDK, Toshiba, TTNet, etc Y. Inoue, NTT
Current Status • T71 Ad hoc WG has finished its first activity • ARIB STD-T71 ver.2 is available now! • Harmonized standard with 802.11j draft D1.0 • http://www.arib.or.jp/ • Both Japanese and English version • Currently, the activities of T71 Ad hoc WG is suspended. Y. Inoue, NTT
Future Works • Harmonization with 802.11j • New frequency allocation for wireless access systems • 5.47-5.725GHz for wireless access systems • 5.25-5.35GHz for FWA services • Technical requirements have not specified yet. • T71 Ad hoc WG will have new activities for standardization of the above systems. Y. Inoue, NTT
Thank you very much! Y. Inoue, NTT