Activities Update from ARIB

1. CJK-IMT28-005 Activities Update from ARIB MORIWAKI, Tetsuro (t-moriwaki@arib.or.jp)

2. Trends of Mobile Communication Systems in Japan

3. Trends of Mobile Communication Systems in Japan • The number of mobile phone subscribers except PHS • 120.18 Million (as of Apr. 2011) • 98.92% 3G penetration rate in mobile phone • 2G services will be terminated by March 2012 • LTE service: 39,800 • Activities on IMT (IMT-2000 and IMT-Advanced) • Report by Telecommunications Council to Ministry of Internal Affairs and Communications (MIC) on technical conditions for 3.9G including enhanced 3.5G in Dec. 2008 • Submission of two IMT-Advanced radio interface candidate technology proposals to ITU-R in Oct. 2009 • Report by Telecommunications Council to MIC on technical conditions for enhanced CDMA 2000 high speed data mobile communication system (EVDO Multi-Carrier) in Dec. 2009

4. Trends of Mobile Communication Systems in Japan • Activities on IMT (IMT-2000 and IMT-Advanced) • Start to study on technical conditions for mobile communication systems utilizing 700/900MHz bands in Dec. 2009, and partial report was issued on 17th May, 2011 • KDDI started commercial service based on enhanced CDMA 2000 high speed data mobile communication system (EVDO Multi-Carrier (up to 3 carriers) /800MHz & 2GHz band) in Nov. 2010 • EMOBILE started enhanced 3.5G commercial service (DC-HSDPA /1.7GHz band) in Dec. 2010 • NTT DOCOMO started 3.9G commercial service (LTE/2GHz band) in Dec. 2010 • SOFTBANK MOBILE started enhanced 3.5G commercial service (DC-HSDPA/1.5GHz band) in Feb. 2011. • Activities on 2.5GHz Band BWA systems • UQ Communications started mobile WiMAX (IEEE802.16e) commercial service in July 2009 • Willcom started XGP(eXtended Global Platform) commercial service in Oct. 2009

5. Study on technical conditions for mobile communication systems utilizing 700/900MHz bands • In Dec. 2009, Telecommunications Council under MIC started the following studies; • Study on technical conditions for mobile communication systems utilizing 700/900MHz bands • Followings are taken into account:- Effective frequency arrangement utilizing 700/900MHz bands - Conditions to coexist with other systems for the introduction of the mobile communication systems utilizing 700/900MHz bands • Spectrum bands of 700/900MHz (scheduled to be available after July 2012) are considered - 700MHz band will be available after the termination of analog broadcasting - 900MHz band will be available after the reallocation of mobile phone frequencies in 800MHz band

6. Study on technical conditions for mobile communication systems utilizing 700/900MHz bands • According to results of the study, the Telecommunications Council issued the partial final report on 17th May, 2011 • The report concludes that LTE FDD, W-CDMA/ HSPA, HSPA Evolution and DC-HSDPA are technically applicable in 900 MHz band in Japan • Study result of 700 MHz band will be reported at later occasion because further study will be needed • ARIB had submitted the input contribution on this issue to 3GPP TSG-RAN#51 and RAN WG4#59 as information

7. Study on technical conditions for mobile communication systems utilizing 700/900MHz bands Discussion point 1: Availability of paring of 700 MHz and 900 MHz bands 800 820 840 860 880 920 940 710 780 740 720 760 900 960 Personal Radio Communication (MHz) Digital TV Broadcasting MCA MCA Broadcast Auxiliary Service/ Radio Microphone ITS 710715 725730770810815830845860875890915950 RFID NTT docomo (3G) KDDI(au) (３G) Discussion point 2: Harmonization with other Asian and North American countries Discussion point 3: Harmonization with European countries Need to ensure a smooth transition of existing systems to other frequency bands Frequency reorganization plan to use LTE FDD, W-CDMA/ HSPA, HSPA Evolution and DC-HSDPA in 900 MHz band was approved in MIC as the objective of Japan on 14th December 2010 (next slide)

8. Study on technical conditions for mobile communication systems utilizing 900MHz bands Frequency reorganization plan in 900 MHz band(decided on 14th December 2010) Blue blocks indicate the bands for the mobile systems current 890 900 910 920 930 940 950 960 MHz * * • 900 - 905 MHz for UL and 945 - 950 MHz for DL will be assigned in 2012 903 915 *Mobile system excluding 3G in 2012 890 900 910 920 930 940 950 960 MHz • 10 MHz bandwidths will be added to the UL and DL after 2012 903 915 by 2015 890 900 910 920 930 940 950 960 MHz GB GB • Eventually 900 - 915 MHz for UL and 945 - 960 MHz for DL will be assigned by 2015 915 928 Orange: Personal radio communication Pink: MCA Yellow: RFID Green: Broadcast auxiliary service • Keep 45 MHz duplex separation between UL and DL in consideration of 3GPP UTRA FDD Band VIII or E-UTRAN Band 8

9. Activities of ARIB

10. Advanced Wireless Communications Study Committee in ARIB • Responsibilities • To conduct technical studies on advanced wireless communication systems in cooperation with other related international/domestic organizations • To contribute to the global standardization • Structure of the Study Committee (as of April 2011) • IMT-Advanced Subcommittee has been renamed to Standardization Subcommittee on April 2011 • Groups under the Standardization Subcommittee were restructured Advanced Wireless Communications Study Committee (ADWICS) Steering Committee IMT Partnership Subcommittee StandardizationSubcommittee BWA Subcommittee Mobile Commerce Subcommittee

11. Standardization Subcommittee • (Structure as of April 2011) Standardization Subcommittee Collaboration Group IMT-AdvancedRIT Study Group Future IMT WG WP5D WG Newly established on October 2010 Dormant state as of April 2011 WirelessMAN-Advanced WG Newly established on October 2010

12. Supplemental slides

13. Introduction of 3.9G system in Japan • In 2008, Telecommunications Council under MIC has conducted the following studies; • Study on technical measures for the enhancement of the third-generation mobile communications system • Study on conditions to coexist with other systems for the introduction of the enhanced third-generation mobile communications system • Spectrum bands of 2GHz, 800MHz, 1.5GHz and 1.7GHz considered • Candidate Enhanced Systems (FDD) studied by the council including 3.5G • LTE, UMB and Mobile WiMAX for 3.9G system • Note: Mobile WiMAX was studied, but was not included in the final report because its FDD mode specs had not been completed yet • HSPA Evolution and DC-HSDPA for enhanced 3.5G system

14. Introduction of 3.9G system in Japan • Study process • 2008. April 21: Study started by Telecommunications Council • 2008. Oct.27 : Draft technical measures for advancement of IMT-2000 • 2008. Oct.31 : Public comment invited on the draft report • 2008. Dec.11 : Final report on technical measures by the council • Schedule for introduction • 2009. Jan.21 : Consulting Radio Regulatory Council (RRC) on radio regulations • 2009. Jan.23 : Draft license policy released and public comment invited • 2009. March 11 : Report on radio regulations by RRC • 2009. March 11 : Consulting RRC and report on draft license policy by RRC • 2009. April 3 : Public announcement of license policy, etc. • 2009. April 3 - May 7 : Approval application period / 4 applications received • 2009. June 10 : All of 4 applications and their deployment plans approved

15. Introduction of 3.9G system in Japan • RRC report on draft license policy on March 11th in 2009 Draft license policy titled “Draft guidelines for establishment of specified base stations for the introduction of the 3.9-generation mobile Communications system” states • 2 blocks of 10MHz and 1 block of 15MHz in 1.5GHz band and 1 block of 10MHz in 1.7GHz band will be newly allocated to 4 applicants regardless of the incumbent operators and new entrants • Within 5 years from the date of approval, more than 50 % population coverage by 3.9G and enhanced 3.5G systems using newly allocated frequency band should be realized • 3G and 3.5G system can also be used in order to flexibly cope with various scenarios of 3.9G system introduction Note: texts shown above are unofficial translations from original material in Japanese 1.5GHz band 1.7GHz band ＊ ① 10MHz ② 10MHz ③ 15MHz ④ 10MHz 1844.9 1854.9 (MHz) 1475.9 1510.9 (MHz) * The band 1503.35MHz -1510.9MHz is prohibited from being used until end of March 2014 in some regions of Japan

16. Introduction of 3.9G system in Japan Deployment plans proposed by applicants (unofficial translation)

17. Introduction of enhanced CDMA high speed data mobile communication system in Japan • In July 2009, Telecommunications Council under MIC started the following studies; • Study on technical conditions for the enhancement of CDMA high speed data mobile communication system • Taking into account conditions to coexist with other systems for the introduction of the enhanced CDMA high speed data mobile communication system • Spectrum bands of 800MHz and 2GHz considered • In Dec. 2009, the council reported to MIC on the technical conditions for enhanced CDMA high speed data mobile communication system • Based on 3GPP2 specification: cdma2000 1X EVDO Multi-Carrier • Multi-carrier of up to 3 carriers DL:14.7Mbps MAX / UL:5.5Mbps MAX

18. Introduction of enhanced CDMA high speed data mobile communication system in Japan CDMA2000 1X EVDO Multi-Carrier DL:14.7Mbps MAX (up to 3 carriers) CDMA2000 1X CDMA2000 1X EVDO Rev.0 CDMA2000 1X EVDO Rev.A CDMA2000 1X EVDO Rev.B DL:73.5Mbps MAX (up to 15 carriers) DL:144kbps MAX DL:2.4Mbps MAX DL:3.1Mbps MAX LTE W-CDMA W-CDMA HSDPA DL:14Mbps MAX DL:384kbps MAX DL: Down Link Note: The picture shown in this page is extracted and unofficially translated from the MIC’s overview document describing enhanced CDMA high speed data mobile radio system written in Japanese. DC-HSDPA DL:43.2Mbps MAX DL:100Mbps MAX