Advances in Wireless Networks Towards a Ubiquitous World

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1 IEICE Lecture Meeting in Bandung Advances in Wireless Networks Towards a Ubiquitous World Feb. 8, 2006 Prof.. Yasushi Yamao UEC-AWCC

2 Contents Current market trends Evolution scenario from 3G to 4G Mobile Ubiquitous A synergistic combination of mobile communication systems and a ubiquitous environment. 1

3 Mobile Phone Penetration Rate Dec Dec Sweden Italy Finland U. K. Germany France Japan 70.6% Dec U. S. A. China Penetration rate (%) 2

4 Mobile Internet Migration in Japan (Millions) Number of subscribers 80 Total number of mobile subscribers % Mobile Internet ex. -mode

5 Mobile Internet Migration in the World Japan Korea U.S.A. Austria Finland Holland Hong Kong Australia France U. K. Spain China Denmark Penetration rate (%) From "2005 White Paper: Information and Communications in Japan" by the Japanese government. 4

6 3G Deployment in Japan Nationwide deployment (Population coverage of 99%) was achieved at the end of March Area coverage by DoCoMo (%) Start of Monitor Service May/2001 March/2002 March/2003 March/2004 5

7 Increase of 3G Subscribers in Japan (Millions) Number of subscribers G Migration 3G 3G 47.7 % (End of Dec.) (Year) 6

8 Advances in Mobile Communication 1980's 1990's 2000's 2010's Voice Slow Data ~ 64kbps Fast Data & Multimedia 384kbps~14Mbps Global standard Broadband & Ubiquitous 100Mbps~1Gbps 1G Analog 2G Digital 3G IMT G NTT ('79) AMPS ('83) TACS ('85) etc. PDC ('93) GSM ('92) IS95 ('95) etc. W-CDMA CDMA2000 TD-CDMA 7

9 Enhancement of Data Speed Data speed (bps) 10M 1M 100k 10k 1k 2.4k PDC 2G & 2.5G 9.6k PDC 32k 28.8k PHS PDC Packet 64k PHS 3G & 3.5G MAX. 2M 384k W-CDMA 3 rd G band (2GHz) Peak 約 14M Year Average 2-3M HSDPA High-Speed Down link Packet Access 2 nd G band (1.9GHz PHS) 2 nd G band (800MHz PDC) 06 8

10 HADPA (High-Speed Downlink Packet Access) Goal; Low bit-cost by more efficient use of down link radio resource. Increase peak and average user throughput. Adaptive modulation and encoding,hybrid-arq Technologies; 14Mbps Adaptive modulation and encoding Data speed 16QAM R= User A User B QPSK R=0.5 16QAM R=0, User A state User B state Time Bit Rate Tx Power Packet speed changes from 384 kbps to14 Mbps for each user. B C A B D A B B A C 14 Mbps 2 Mbps 384 kbps 14 Mbps 384 kbps Time 9

11 HSDPA Terminals (Prototype) DoCoMo developed prototype terminals with maximum down link speed of 3.6 Mbps. Courtesy of NTT DoCoMo 10

5G 4G High-speed High-capacity Short delay Low bit cost IP-based?

12 4G Enhancement in Transmission New Broadband Packet Wireless Access Technology will remarkably enhance system performance. Mobility Nationwide Citywide 2G 3G IMT G 4G High-speed High-capacity Short delay Low bit cost IP-based? Premises Indoor / FWA 0.1 Nomadic Wireless Access (W-LAN) Data rate (Mbit/s) Millimeter-wave LAN

13 Two Streams with Overlapping Goal Cellar and Wireless LAN technologies will target a similar field. Global Nationwide Cellular 100Mb/s Mobility Citywide Premises Indoor / FWA 2G 0.1 3G 3.5G Nomadic Wireless Access WLAN 1 Information Speed (Mbit/s) 4G 100M-1Gb/s WiMAX Millimeter-wave LAN c NTT DoCoMo 12

14 1Gbps Wireless Access MIMO (Multiple-Input Multiple-Output) Spectrum efficiency target: 10bit/Hz Demultiplexing method is the key. 13

15 IP Network Technology Impact 1. IP Convergence in Layer 3 may enable Seamless Service among heterogeneous NWs. - Unified Mobility Management (Both macro- and micro-mobility) is key technology. - Security Measures will be more important considering connection to private NWs. AP Common AP1 Common AP2 Common AP3 Mid layer IP layer PHY layer Fixed public NW Mobile public NW Office private LAN Home LAN Fixed public NW Mobile public NW Office LAN Home LAN Mobility 2002 c NTT DoCoMo 14

4G Evolution Scenario 2G 3G 4G Mobile Internet Mobile multimedia Mobile Ubiquitous Services i-mode E-mail Web Access FOMA Visual mail TV conference Video phone

16 4G Evolution Scenario 2G 3G 4G Mobile Internet Mobile multimedia Mobile Ubiquitous Services i-mode Web Access FOMA Visual mail TV conference Video phone Ubiquitous Collaboration Object-related application Application based on real world info. Systems PDC PDC-P ATM -> IP 3G RAN -> IP RAN 3G, 3.5G, 4G WLAN, Non-cellular 15

17 Vision of Future Wireless Communication MultiSphere Model (Ref. WWRF report) Level : PAN (Personal Area Network), Wearable Devices Terminals Level : Immediate Environment (Ubiquitous) Level : Instant Partners (Ad hoc Networking) Level : Radio Accesses (Global) 3G, 4G Mobile Network Level : CyberWorld (Internet) Wireless technologies connect everything! (Figure:WWRF 2001) 16

18 Ubiquitous: Non-Human Communications Net browsing i-mode MM mail Human to Machine Human Human to Human Mobile multimedia Mobile network PDC/PDC-P/PHS/ P/PHS/ W-CDMA Voice Tele-metering Remote operation Machine to Machine ITS GPS MMD * 0 # PAN/HAN Tag RF-ID 17

Mobile Ubiquitous Model Mobile terminal can "network" with various ubiquitous

Global mobile network /Internet 4G Broadband radio access as Mobile highway

networks) AP AP AP AP Up to 100 Mbps 4G access I/F Human com.

19 Mobile Ubiquitous Model Mobile terminal can "network" with various ubiquitous elements. Global mobile network /Internet 4G Broadband radio access as Mobile highway Mobile terminal as Ubiquitous gateway Heterogynous ubiquitous elements (Devices, networks) AP AP AP AP Up to 100 Mbps 4G access I/F Human com. I/F Internet service Ubiquitous gateway I/F U1 U2 U3 U4 U5 Personal / home area NW & devices Devices for remote operation Tag/RF-ID Ad-hoc NW1 Other mobile terminals Ad-hoc NW2 18

20 Ubiquitous Element (1) -PAN/HAN- Personal Area Network (PAN) Home (or Room) Area Network (HAN) Logically reconfigurable terminal enhancing its function with surrounding devices available at that time. Household appliance Clothing with sensor PC Electronic money Audio/ visual devices 19

Ubiquitous Element (2) -Device for Remote

* DoCoMo Packet service by PDC-P system Vending

21 Ubiquitous Element (2) -Device for Remote Operation- Dopa* ubiquitous module can be installed in any machine or product and adds a packet communication function. * DoCoMo Packet service by PDC-P system Vending machines Size: 37 x 35.7 x 5 mm Weight: 13 g Video monitors Delivery vehicles 20

Ubiquitous Element (3) -Barcode- New mobile phones can

If necessary, they access the URL indicated in the code and

Yasushi Yamao Personal Data F. name: Yasushi L.

22 Ubiquitous Element (3) -Barcode- New mobile phones can capture and decode two-dimensional (2D) barcodes. If necessary, they access the URL indicated in the code and obtain detailed information. 2D Barcode Dr. Yasushi Yamao Personal Data F. name: Yasushi L. name: Yamao Sex: Male Title: PhD Affiliation: DoCoMo Hobby:? ex. Business card, Goods, 21

23 Ubiquitous Element (4) -Sensor NW- Sensor networks (Weather, earthquake, environmental change, etc.) Global mobile network /Internet AP * 0 # AP * 0 # Sensor NW AP AP * 0 # 22

24 Summary Survey current market trends and present an evolution scenario from 3G to 4G Proposed Mobile Ubiquitous and described its value. Thank you for your attention! 23

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