1. CJK IMT 28 Xi’an, China 2-3 Jun. 2011 CJK IMT 28, Xi’an, China 1/18 CJK-IMT28-005 Activities Update from ARIB MORIWAKI, Tetsuro (t-moriwaki@arib.or.jp)

2. 2/18 CJK IMT 28, Xi'an, China Trends of Mobile Communication Systems in Japan

3. 3/18 CJK IMT 28, Xi'an, China 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. 4/18 CJK IMT 28, Xi'an, China 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 17 th 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. 5/18 CJK IMT 28, Xi'an, China 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. 6/18 CJK IMT 28, Xi'an, China 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 17 th 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. 7/18 CJK IMT 28, Xi'an, China Broadcast Auxiliary Service/ Radio Microphone 710 715 725 730 770 810 815 830 845 860 875 890 915 950 NTT docomo (3G) KDDI(au) ( ３ G) 820840860880 900 920940800 760 960 740 720 (MHz) 710 MCA Personal Radio Communication ITS Digital TV Broadcasting Discussion point 1: Availability of paring of 700 MHz and 900 MHz bands Discussion point 2: Harmonization with other Asian and North American countries Discussion point 3: Harmonization with European countries RFID Need to ensure a smooth transition of existing systems to other frequency bands 780 Study on technical conditions for mobile communication systems utilizing 700/900MHz 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. 8/18 CJK IMT 28, Xi'an, China Study on technical conditions for mobile communication systems utilizing 900MHz bands 10 MHz bandwidths will be added to the UL and DL after 2012 900 - 905 MHz for UL and 945 - 950 MHz for DL will be assigned in 2012 Frequency reorganization plan in 900 MHz band (decided on 14th December 2010) Keep 45 MHz duplex separation between UL and DL in consideration of 3GPP UTRA FDD Band VIII or E-UTRAN Band 8 Blue blocks indicate the bands for the mobile systems Eventually 900 - 915 MHz for UL and 945 - 960 MHz for DL will be assigned by 2015

9. 9/18 CJK IMT 28, Xi'an, China Activities of ARIB

10. 10/18 CJK IMT 28, Xi'an, China 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 Mobile Commerce Subcommittee Steering Committee Advanced Wireless Communications Study Committee (ADWICS) IMT Partnership Subcommittee BWA Subcommittee Standardization Subcommittee

11. 11/18 CJK IMT 28, Xi'an, China Standardization Subcommittee Collaboration Group IMT-Advanced RIT Study Group WP5D WG (Structure as of April 2011) Future IMT WG WirelessMAN-Advanced WG Dormant state as of April 2011 Newly established on October 2010

12. 12/18 CJK IMT 28, Xi'an, China Supplemental slides

13. 13/18 CJK IMT 28, Xi'an, China 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. 14/18 CJK IMT 28, Xi'an, China 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. 15/18 CJK IMT 28, Xi'an, China Introduction of 3.9G system in Japan RRC report on draft license policy on March 11 th 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 (1) 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 (2) 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 (3) 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 ①10MHz②10MHz③15MHz ＊ ④10MHz 1.5GHz band 1.7GHz band 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 1844.9 1854.9 (MHz)

16. 16/18 CJK IMT 28, Xi'an, China Introduction of 3.9G system in Japan OperatorEMOBILENTT DOCOMOSOFTBANK MOBILEKDDI Frequency band applied for 1.7GHz band / 10MHz 1.5GHz band / 15MHz 1.5GHz band / 10MHz 1.5GHz band / 10MHz 3.9G /e3.5G system System DC-HSDPA LTE(5MHz,2X2MIMO) LTE(15MHz,2X2MIMO)DC-HSDPA LTE(5MHz,2X2MIMO) LTE (10MHz,2X2MIMO) Freq. band 1.7GHz band (DC-HSDPA,LTE) 1.5G/2GHz band (LTE)1.5GHz (DC-HSDPA) 2GHz band (LTE) 800M/1.5GHz band (LTE) Service launch date September 2010December 2010July 2011December 2012 Area deployment By Mar. 2015 75.2% 6,388 base stations 51.10% 20,700 base stations 60.63% 9,000 base stations 96.5% 29,361 base stations Estimated number of subscribes by Mar. 2015 2.95M17.74M5.41M9.84M 1.5GHz /1.7GHz band usage System HSPA, DC-HSDPA LTE HSPA, DC-HSDPALTE Service launch date January 20104Q 2012April 2010December 2012 Area deployment By Mar. 2015 75.2% 6,676 base stations 50.62% 5,700 base stations 81.47% 10,000 base stations 53.0% 6,361 base stations Deployment plans proposed by applicants (unofficial translation)

17. 17/18 CJK IMT 28, Xi'an, China 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. 18/18 CJK IMT 28, Xi'an, China Introduction of enhanced CDMA high speed data mobile communication system in Japan CDMA2000 1X EVDO Rev.0 CDMA2000 1X EVDO Rev.A CDMA2000 1X EVDO Rev.B LTE W-CDMAW-CDMA HSDPA DC-HSDPA DL:144kbps MAX DL:384kbps MAX DL:2.4Mbps MAXDL:3.1Mbps MAX DL:14Mbps MAX DL:43.2Mbps MAX DL:73.5Mbps MAX (up to 15 carriers) 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. DL:100Mbps MAX CDMA2000 1X EVDO Multi-Carrier DL:14.7Mbps MAX (up to 3 carriers)