ARIB Standards Development for Wireless Access systems

1. ARIB Standards Development for Wireless Access systems Submission Date:July 1, 2008

2. Highlight of Current Activities (1) • 4 working groups (including 3 technical working groups) have been constituted in ARIB-MMAC (Multimedia Mobile Access Communications System) Forum to make technical investigation, study on system specifications, liaison with other standardization bodies, promotion of demonstrative experiments and popularization activities. • Promotion-WG • Planning and managing promotion and popularization activities of the Forum • MMAC802.11-WG • Modification of ARIB STD-T71, incorporating introduction of high-speed wireless LAN in the 5GHz band • Liaison with IEEE802.11 for updating ARIB STD-T71(TGn etc.) • Maintaining the standard of ARIB STD-T71 and drafting its revisions • UWB-WG • Investigation of the discussion of interference mitigation function for UWB (Ultra Wide Band) system in Europe and Japan. Planning and promotion of UWB (Ultra Wide Band) demonstrative experiments. • Provision of information regarding the investigation of interference mitigation function in Japan to ECC and ETSI. • Exchange of information regarding the interference mitigation function among Asian countries. • Maintaining the standard of ARIB STD-T91 and drafting its revisions. • Establishment of residential backbone network sub-working group. • mmWPAN-WG • Study on standardization of millimeter-wave wireless PAN (Personal Area Network) • Making a draft standard of millimeter- wave wireless PAN in Japan

3. Highlight of Current Activities (2) • MMAC802.11-WG activities • Developing standards to define specifications for broadband mobile access communication system using CSMA • Currently maintaining the ARIB STDs T66 and T71 • T66 : for 2.4GHz systems (802.11b and g) • T71 : for 4.9, 5.2, 5.3 and 5.6GHz systems (802.11j, 11a and 11n) • Recently completed work: • Following standards were revised in last year reflecting Japanese Radio Regulation change; • ARIB STD T71 version 4.0 (May. 2007). • Align with the 5.6GHz allocation for wireless LAN systems, technical requirements for the system using 5.6GHz band(5.47-5.725GHz) were added • Mitigation of limitation for 5.2 and 5.3GHz bands; inside traveling trains were assumed as indoor environment and use of 5.2 and 5.3GHz were permitted • ARIB STD T71 version 5.0 (Dec. 2007). • Technical requirements for channel-bonded 40MHz operation were added • Liaison with IEEE 802.11 for updating ARIB STD T71 • Carefully watching the activities and directions of IEEE 802.11 task groups; e.g. TGn(high-throughput) and TGs(mesh networking)

4. Strategic Direction • ARIB standards development on Wireless LAN systems based on IEEE802.11 standards and Japanese Radio Regulations • Contents of published IEEE802.11 standards should be reflected into ARIB STD T71 • Reflection of draft phase standards (e.g. IEEE802.11n D.2.0) into ARIB STD T71 will be discussed and decided in MMAC802.11-WG • Changes of Japanese Radio Regulations will be reflected into ARIB STD as soon as possible • Modification of ARIB standards consider the certification programs of following industrial organizations; • Wi-Fi Alliance • Certification program that guarantees interoperability between wireless LAN access points and wireless terminals • TELEC (Telecom Engineering Center) • Certification that specified radio equipment conforms to the technical regulations based on the Radio Regulation of Japan

5. Challenges • Due to the differences of standardization process, some gaps exist among their documents or (draft) standards • Current version of ARIB STD-T71 is described based on Japanese Radio Regulation and it refers IEEE802.11n draft 2.0 standard • IEEE802.11 TGn is revising the draft almost once two month and the latest version is 4.0 • Wi-Fi Alliance has already started the IOT (Inter operability test) program based on IEEE802.11n draft 2.0 standard • Differences and discrepancies among documents and standards mentioned above should be absorbed and new version of ARIB STD-T71 to be published • No documents or standards exist regarding ad-hoc networking in MMAC802.11-WG • To be discussed

6. Next Steps/Actions • MMAC802.11WG to maintain ARIB STD-T71 and revise it align with activities of other standard bodies and industrial organization such as IEEE802.11, Wi-Fi Alliance and TELEC • In MMAC, Wide Area Ubiquitous Network-WG (tentative name) will be newly constituted in 2008 • Study on the wide area ubiquitous network system using many simple radio data terminals distributed over a wide area which perform data communications and information processing • Development techniques for the wide area ubiquitous network

7. Proposed Resolution [optional] • N/A

8. Supplemental Slides

9. What is MMAC? Objective • The objective of the Forum is to realize MMAC(Multimedia Mobile Access Communication Systems) as soon as possible through investigations of system specifications, demonstrative experiment, information exchange and popularization activities and thereby contribute to the efficient use of radio frequency spectrum. Activities 1.Investigation 2.Study on system specifications 3.Demonstrative experiment 4.Information exchange and popularization activities 5.Other business Establishment • December 4, 1996

10. Organization Promotion-WG General Assembly Officers-Members MMAC802.11-WG Executive Committee UWB-WG Steering Committee mmWWPAN-WG Wide Area Ubiquitous Network-WG * (Tentative name) * Newly-constituted in 2008

11. Target spec. of MMAC

12. MMAC Forum coverage area Coverage area MMAC area The 3rd generation (3G: W-CDMA, CDMA2000 1X, etc) The 3.5th generation (3.5G: HSPA, EV-DO) The 3.9th generation (3.9G: LTE, UMB) MMAC area Cellular System Next generation PHS The 4th generation IMT-Advance PHS MBWA(IEEE802.20) Beyond 4th generation MAN FWA(IEEE802.16a 16e) HiSWANa HiSWANb Wireless1394 LAN IEEE802.11 802.11b 802.11a/g 802.11n 802.11VHT UWB Bluetooth(IEEE802.15.1) PAN ZigBee(IEEE802.15.4) Millimeter wave (IEEE802.15.3c) 100k 1M 10M 100M 1G 10G Information rate

13. Target Layer WG Layer

14. Schedule Study on TGn Study on WLAN, drafting a revision of T71, etc. Study on interference mitigation function for UWB standardization Exchange of information regarding the interference mitigation function among standard-setting organizations. Drafting a revision of T91 Liaison with IEEE802.15.3c Drafting a standard of mm WPAN in Japan Study on Wide Area Ubiquitous Network Development technique for Wide Area Ubiquitous Network

15. MMAC Concept

16. Global Standardization Relationship

17. MMAC Members Agilent Technologies Japan, Ltd.Atheros Communications, Inc.BUFFALO INC.CANON INC.CASIO COMPUTER CO., LTD.Cisco Systems K.K.Daido Steel Co., Ltd.DATATrak Co., Ltd.DENSO CORPORATIONDX ANTENNA CO., LTD.Euphonic Technologies, Inc.FOCUS ENHANCEMENTS JAPAN K.K.France Telecom Japan Co., Ltd.Fuji Electric Advanced Technology Co., Ltd.FUJITSU GENERAL LIMITEDFUJITSU LIMITEDFUJITSU TEN LIMITEDFuji Television Network, Inc.Fuji Xerox Co., Ltd.Futaba CorporationHitachi, Ltd.Hitachi Cable, Ltd.Hitachi Kokusai Electric Inc.IBM Japan, Ltd.Icom Inc.Infineon Technologies Japan K.K.Intel CorporationInternix IncorporatedITOCHU Techno-Solutions CorporationIwatsu Electric Co., Ltd.Japan Radio Co., Ltd. Kandenko Co., Ltd.The Kansai Electric Power Co., Inc.KDDI CORPORATIONKyocera CorporationMatsushita Electric Industrial Co., Ltd.Matsushita Electric Works, Ltd.Mitsubishi Electric CorporationMitsubishi Electric TOKKI Systems CorporationMurata Manufacturing Co., Ltd.Motorola Japan Ltd.Nassua Solutions CorporationNational Mobile Radio Centers CouncilNEC CorporationNEC Electronics CorporationNEC Infrontia CorporationNEC Micro Systems, Ltd.New Japan Radio Co., Ltd.NIHON DEMPA KOGYO CO., LTD.NIHON DENGYO KOSAKU CO., LTD.NIPPON TELEGRAPH AND TELEPHONE CORPORATIONNokia Siemens Networks Japan Corp.NTT DoCoMo, Inc.NTT Electronics CorporationOki Electric Industry Co., Ltd.Panasonic Mobile Communications Co., Ltd.Pioneer CorporationQUALCOMM IncorporatedRicoh Co., Ltd.ROOT INC.Samsung Yokohama Research Institute Co., Ltd.SANSEI ELECTRIC CO., LTD. SANYO Electric Co., Ltd.SAXA, Inc.Sharp CorporationSOFTBANK MOBILE Corp.Sony CorporationSOSHIN ELECTRIC CO., LTD.Sumitomo Electric Industries, Ltd.TAITO CORPORATIONTaiyo Yuden Co., Ltd.TDK CorporationTelecom Engineering CenterTexas Instruments Japan Ltd.Toho Technology CorporationThe Tokyo Electric Power Company, IncorporatedTOMEN ELECTRONICS CORPORATIONToshiba CorporationTOSHIBA TEC CORPORATIONTOYOTA MOTOR CORPORATIONUM-Services, Ltd.Victor Company of Japan, LimitedWisair Ltd.YAGI ANTENNA INC.Yokogawa Electric Corporation as of June 15, 2007. 92 members

18. Public WiFi Services in Japan • NTT Group • NTT East/NTT West (Regional carrier), NTT Communications (Long distance carrier) and NTT DoCoMo (Mobile operator) are providing public WiFi services • NTT Broadband Platform, Inc. deploys and operates WiFi access points and wholesales them for NTT East, NTT West, NTT Communications and for NTT DoCoMo • About 7,000 access points (at stations, airports, hotels, restaurants etc.) have been deployed • Softbank BB • Providing “BB mobile point” service using IEEE802.11b • Wireless service is an optional service for residential broadband “Yahoo BB” users • Livedoor Wireless • Providing public wireless LAN service using IEEE802.11b and g • Set up access points on utility poles • Covers whole area of inside “Yamanote line”; central Tokyo

19. Public WiFi Service Areas • Airport • Major airports • Public WLAN services available • Free wireless access as Airport lounge service for business class/first class customers (Tokyo/Narita, Osaka etc.) • Railway station • Major private railway stations in Tokyo metropolitan areas • All stations of “Keikyu railway”, “Tokyo metro subways” and “Tokyo municipal subways” (Tokyo and Kanagawa area) • Major hotels, cafes and restaurants • On the train • WiFi train service available on “Tsukuba Express” • Public wireless LAN services of NTT East and NTT DoCoMo are available all the way from “Akihabara” to “Tsukuba” • WiFi service on bullet train “Shinkansen” from Tokyo to Osaka will be available next year