1. Nadi, Fiji, 4-6 July 2011 4G Development and Spectrum Issues Kyu-Jin WEE, Ph.D. Vice-Chairman, ITU-R WP 5D ITU-T Workshop on Bridging the Standardization Gap and Interactive Training Session (Nadi, Fiji, 4 – 6 July 2011 )

2. Nadi, Fiji, 4-6 July 2011 2 Contents What is 4G? Review of ITU activities on IMT What is 4G? IMT Standards in ITU-R Spectrum Issues IMT Identifications at WRCs Main principles of spectrum use for IMT Interference cases Channel arrangements in 700 MHz Spectrum Harmonization among APT

3. What is 4G? 3

4. 19 85 Start to Study on IMT(FPLMTS) 19 92 19 99 20 07 20 00 20 03 20 11 2015 /16 IMT Spectrum (WARC-92) IMT Spectrum (WRC-2000) IMT Spectrum (WRC-2007) Regional Workshop for IMT.UPDATE Broadband/IMT Spectrum (WRC-2015/16) 20 12 First Release of IMT specification M.1457 ITU-R Report IMT.UPDATE Review of ITU activities on IMT 4

5. Vision for IMT 5

6. Traffic = users x volume per user Mobile talk 10 kbps 10- 50MB/month Smartphone 100-1,000 kbps 100-500 MB/month Mobile PC >1 Mbps 1-5 GB/month 1 10 100 0 500 1 000 1 500 2 000 2 500 3 000 3 500 4 000 4 500 5 000 200820092010201120122013201420152016 Subscriptions (million) Mobile PC & Tablets Handheld devices 60 0 10 20 30 40 50 20082009201020112012201320142015 2016 Data Voice Yearly Exabytes (10 18 ) Capacity Demands 6

7. Voice+Data+Wireless Internet + sensing -WiMax Evolution, LTE advanced -3D video/Rich multimedia phone, M2M Voice - Analog Cellular -Car Phone Voice Oriented (Wired -> Wireless Mobility) Technology-oriented System (Voice Quality/Roaming) Service-oriented System High-speed Wireless Internet (Broadband) User-oriented System Ubiquitous Convergence Service (Broadband, Ubiquitous, Sensing, Convergence, Intelligence) 1G Voice+SMS -cdmaOne, GSM -DMB/MP3/DigiCam ara 2G 3G Voice+Data -WCDMA/HSDPA Cdma2000 -DMB/MP3/DigiCa mara Voice+Data+ Wireless Internet -WiBRO Cdma2000rA,B/HSUPA -Game/Video phone 4G Cut the wire ! Digital ! Video phone + internet All in the mobile ! What is 4G? 7 * Images captured on the web

8. 8 Evolution of IMT Technologies

9. Standardization of IMT-Advanced systems Developing Recommendation ITU-R [IMT.RSPEC] (to be approved in RA-12, 2012) LTE-Advanced (by the 3GPP) WirelessMAN-Advanced (802.16m by the IEEE) Forecast of future IMT services Developing Report ITU-R IMT.UPDATE (to be approved in 2011) Review of previous market forecast New trends in mobile broadband Broadband plans available including mobile broadband/IMT Spectrum Harmonization Revising Recommendation ITU-R M.1036 (to be approved in 2011) Harmonized channel arrangements IMT Standards in ITU-R 9

10. Spectrum Issues 10

11. No distinction between IMT-2000 & IMT-Advanced in the use of frequencies IMT identification at WRC-07 in the band 698-790 MHz in Bangladesh, China, Korea, India, Japan, New Zealand, Singapore, Papua New Guinea, and Philippines (RR No. 5.313A) in the band 3400-3500 MHz in Bangladesh, China, Korea, India, Japan, New Zealand, Singapore, Pakistan, Iran and French overseas communities in R3 (RR Nos. 5.432A and 5.432B) IMT identifications at WRCs 11

12. 12 IMT bands in some countries

13. to minimize the impact on other systems and services within, and adjacent to, the bands identified for IMT to facilitate worldwide roaming of IMT terminals to optimize the efficiency of spectrum utilization within IMT bands minimized guardbands for IMT systems to avoid wasting spectrum sufficient frequency separation between transmitter and receiver frequencies must exist in a frequency division duplex system to minimize terminal costs, size and power consumption, etc. harmonized frequency arrangements to reduce the overall cost of IMT networks and terminals by providing economies of scale Main Principles of spectrum use for IMT 13

14. same IMT systems in the same frequency band Administration 1 Neighboring Administration 2 Interference case (1) 14 Opposite directions of Tx and Rx in the same frequency band may cause interference at cross-border area

15. Interference case (2) 15 Interference example in Korea Introduction of new system in the adjacent band Sufficient guard band is required to mitigate interference 839-849 Operator B @ 850 MHz (LTE service ) Operator A @ 900 MHz (LTE service) 11 MHz of guard band 884-894 905-915 950-960 Special out-of-band emission limits are regulated for mobile terminal of Operator A and BS of Operator B

16. 16 806 PPDR 45MHz 3MHz DTV MS BS 5MHz 10MHz Center gap TDD Channel Arrangements in 700 MHz (1) PPDR 2-4MHz 694 698 DTV 4-6MHz 100MHz 45MHz 806 BS and MS Option 1 (FDD Conventional) Option 2 (TDD) 806 By APT Wireless Group (AWG)

17. Nadi, Fiji, 4-6 July 2011 17 By European Union Channel Arrangements in 700 MHz (2) 30 MHz Downlink30 MHz Uplink 791 (MHz) 821 832 862 11 MHz of Center gap 1 MHz of Guardband 790 18 MHz Uplink 18 MHz Downlink Media Flo Unpaired 11 MHz Downlink 11 MHz Uplink D block & Public Safety 698 (MHz) 716 722 728 746 757 776 787 806 758775788 805 By the US

18. Spectrum Harmonization among APT 18 Plan of action from Bali Statement by Asia Pacific Ministerial Meeting on Strengthening Regional Collaboration towards a Broadband Economy in the Asia pacific Policy objective C: Facilitate effective convergence of services Collaborate regionally possible to harmonize the RF bands allocated for broadband ICT application and services Most of spectrum plans led by EU countries and the Americas APT countries adopted them and not harmonized among APT AWG developed Channel arrangement in 700 MHz band First case of harmonized spectrum plan for Asia-Pacific countries Encouraged to keep collaborating for spectrum harmonization taking into account Bali statement

19. Thank You! kjwee@kcc.go.kr 19