True Mobile Broadband Wireless City Planning a Softbank company Copyright © 2012 Wireless City Planning inc. all rights reserved. 1 Traffic Explosion 3G 2G 1973 1993 2000 ２００７ Copyright © 2012 Wireless City Planning inc. all rights reserved. 2 An inconvenient truth x1K 10 years x32 5 years x2/year Copyright © 2012 Wireless City Planning inc. all rights reserved. 3 “Cloud” requires huge radio capacity Let there be light Copyright © 2012 Wireless City Planning inc. all rights reserved. 4 We must survive against Data Storm Copyright © 2012 Wireless City Planning inc. all rights reserved. 5 What do we have to do? Copyright © 2012 Wireless City Planning inc. all rights reserved. 6 Smaller Cell Reduce Interference Copyright © 2012 Wireless City Planning inc. all rights reserved. 7 BS1 BS2 Simple BS3 Smaller Cell Poor fringe quality Copyright © 2012 Wireless City Planning inc. all rights reserved. 8 BS1 BS2 BS3 Smaller Cell + nice Interference Cancel Technologies Copyright © 2012 Wireless City Planning inc. all rights reserved. 9 Next 10 to 15 Years Copyright © 2012 Wireless City Planning inc. all rights reserved. 10 All bands GSM, UMTS LTE Copyright © 2012 Wireless City Planning inc. all rights reserved. 11 Three different approaches to LTE Copyright © 2012 Wireless City Planning inc. all rights reserved. 12 1. GSM with limited WCDMA 2. Cdma / WiMAX 3. Well deployed UMTS Copyright © 2012 Wireless City Planning inc. all rights reserved. 13 GSM with limited WCDMA Skip 3G Save 3G Investment Copyright © 2012 Wireless City Planning inc. all rights reserved. 14 All in one chip are shipping GSM UMTS LTE Single Eco-system Copyright © 2012 Wireless City Planning inc. all rights reserved. 15 Share existing facilities Copyright © 2012 Wireless City Planning inc. all rights reserved. 16 First application of LTE Wireless DSL Nomadic Data Copyright © 2012 Wireless City Planning inc. all rights reserved. 17 SSmmaarrtt PhonPhonee Ready 2012 Gradually Copyright © 2012 Wireless City Planning inc. all rights reserved. 18 1. GSM with limited WCDMA 2. Cdma / WiMAX 3. Well deployed UMTS Copyright © 2012 Wireless City Planning inc. all rights reserved. 19 Eco-system issue for cdma / WiMAX Nationwide LTE migration rapidly with VoLTE Copyright © 2012 Wireless City Planning inc. all rights reserved. 20 1. GSM with limited WCDMA 2. Cdma / WiMAX 3. Well deployed UMTS Copyright © 2012 Wireless City Planning inc. all rights reserved. 21 Well deployed UMTS deploy LTE for capacity Copyright © 2012 Wireless City Planning inc. all rights reserved. 22 fortunately Copyright © 2012 Wireless City Planning inc. all rights reserved. 23 Concentrated Traffic Copyright © 2012 Wireless City Planning inc. all rights reserved. 24 70% > TRF generated at Indoor Copyright © 2012 Wireless City Planning inc. all rights reserved. 25 Urban/Suburban Nation Wide +4G+Wi-Fi 2/3G 2/3G Copyright © 2012 Wireless City Planning inc. all rights reserved. 26 HHiighgh DDeennssee && PPiinnppooiinntt Copyright © 2012 Wireless City Planning inc. all rights reserved. 27 HHiighgh DDeennssee && PPiinnppooiinntt Copyright © 2012 Wireless City Planning inc. all rights reserved. 28 Also Copyright © 2012 Wireless City Planning inc. all rights reserved. 29 All bands GSM, UMTS 4G Copyright © 2012 Wireless City Planning inc. all rights reserved. 30 Use Bands as WiFi a Cocktail Capacity Pico 3500MHz 2600MHz Coverage (Power) Micro 2100MHz Macro 1800/1900MHz Macro 700-900MHz Copyright © 2012 Wireless City Planning inc. all rights reserved. 31 Today each band (system) has Capacity various size Fem of cell to e Pico c n Pico Coverage re 2G Miecro rf Micro 900MHzeMacro 3G t 2.1GHz In Macro Macro Macro Copyright © 2012 Wireless City Planning inc. all rights reserved. 32 Dedicated Pico bands WiFi would give us a Capacity huge Capacity Pico 3500MHz 2600MHz Coverage (Power) 2300MHz Micro 2100MHz Macro 1800/1900MHz Macro 700-900MHz Copyright © 2012 Wireless City Planning inc. all rights reserved. 33 so Copyright © 2012 Wireless City Planning inc. all rights reserved. 34 Offload Traffic 22//33GG 44GG && WWiiFFii Copyright © 2012 Wireless City Planning inc. all rights reserved. 35 Is this enough? Copyright © 2012 Wireless City Planning inc. all rights reserved. 36 No! Copyright © 2012 Wireless City Planning inc. all rights reserved. 37 An inconvenient x1K True 10 years x32 5 years x2/year Copyright © 2012 Wireless City Planning inc. all rights reserved. 38 what could we do more against Data Storm Copyright © 2012 Wireless City Planning inc. all rights reserved. 39 TDD Copyright © 2012 Wireless City Planning inc. all rights reserved. 40 TDD Copyright © 2012 Wireless City Planning inc. all rights reserved. 41 Mobile Internet fits better to TDD Copyright © 2012 Wireless City Planning inc. all rights reserved. 42 Internet fits better to TDD FDD = Voice Symmetric Internet = TDD Asymmetric & Broadband Copyright © 2012 Wireless City Planning inc. all rights reserved. 43 FDD TDD Guard Band >>10% T T UL Guard Time <<10% UL GB DL DL U:D=1:1 F N:1 F Copyright © 2012 Wireless City Planning inc. all rights reserved. 44 2.5/2.6GHz FDD TDD B7 B41 T T 25% 5% 37% 26% 37% 2x 70% 190MHz F 190MHz F Copyright © 2012 Wireless City Planning inc. all rights reserved. 45 Inter Bands Guard Band >>10% T FDD UL DL UL DL = F T UL UL UL TDD DL DL DL F Copyright © 2012 Wireless City Planning inc. all rights reserved. 46 So, I would say… Copyright © 2012 Wireless City Planning inc. all rights reserved. 47 TDD is the hope against Data Storm Copyright © 2012 Wireless City Planning inc. all rights reserved. 48 but Copyright © 2012 Wireless City Planning inc. all rights reserved. 49 People ask me… Copyright © 2012 Wireless City Planning inc. all rights reserved. 50 Does TDD have a eco-system? Copyright © 2012 Wireless City Planning inc. all rights reserved. 51 Yes! We are here! Copyright © 2012 Wireless City Planning inc. all rights reserved. 52 Global TD-LTE Initiative (GTI) Since Feb 2011 in MWC Initiators China Mobile 32 Bharti Airtel Operators Softbank Vodafone ClearWire Copyright © 2012 Wireless City Planning inc. a*ll rIinghcts lruesdeerved .s everal WiMAX operators5.3 600M 200M Over 200M 33M 1Billion and more... Subscribers Copyright © 2012 Wireless City Planning inc. all rights reserved. 54 TDD band 3.7GHz 200MHz 3.5GHz 200MHz opportunities 2.6GHz 200MHz 2.3GHz 100MHz 1.9GHz 40MHz 2.0GHz 15MHz 755MHz Bandwidth Copyright © 2012 Wireless City Planning inc. all rights reserved. 55 TDD ≒ FDD for LTE GSM UMTS LTE[F&T] Single Eco-system Copyright © 2012 Wireless City Planning inc. all rights reserved. 56 Also Copyright © 2012 Wireless City Planning inc. all rights reserved. 57 People ask me… Copyright © 2012 Wireless City Planning inc. all rights reserved. 58 Has TDD been matured? Copyright © 2012 Wireless City Planning inc. all rights reserved. 59 Yes! It’s working Now! Copyright © 2012 Wireless City Planning inc. all rights reserved. 60 System Launched in Nov.1st 2011 Major 30+ Cities Tokyo, Osaka, Nagoya… Copyright © 2012 Wireless City Planning inc. all rights reserved. 61 4G TDD Max. 110110MMbpbpss (20MHzBW) Copyright © 2012 Wireless City Planning inc. all rights reserved. 62 Feb 2012 Commercial MiFi Device 4G+3G Copyright © 2012 Wireless City Planning inc. all rights reserved. 63 20120122 NW Supports Smart Phone Copyright © 2012 Wireless City Planning inc. all rights reserved. 64 Accelerating Deployments 2000eNB/Month Copyright © 2012 W~ireless City Planning inc. all rights reserved. 65 20120133 Most of TRF Coverage Copyright © 2012 Wireless City Planning inc. all rights reserved. 66 Only One Small Concern is Copyright © 2012 Wireless City Planning inc. all rights reserved. 67 Launch before China Copyright © 2012 Wireless City Planning inc. all rights reserved. 68 Our Potentials Copyright © 2012 Wireless City Planning inc. all rights reserved. 69 161600kk MMiiccrroo cceellll SSiitteess aarree aavvaaililababllee for 4G for 4G 115050BBSS//kkmm22 Copyright © 2012 Wireless City Planning inc. all rights reserved. 70 MMoorree ssppeeeedd MMoreore aannttennaenna eelleemmenentsts N MIMO : N elements Copyright © 2012 Wireless City Planning inc. all rights reserved. 71 Which one is easier to have more antenna elements? Copyright © 2012 Wireless City Planning inc. all rights reserved. 72 Cloud RAN BBU Dark Fiber Distributed RRH Cloud BBU @sites @LXC office Copyright © 2012 Wireless City Planning inc. all rights reserved. 73 Which one is much intelligent? Distributed RAN Cloud RAN Copyright © 2012 Wireless City Planning inc. all rights reserved. 74 Which one is lower power consumption? Distributed RAN Cloud RAN Copyright © 2012 Wireless City Planning inc. all rights reserved. 75 Which one is more robust? N+1 Distributed RAN Cloud RAN w/pooling BBU Copyright © 2012 Wireless City Planning inc. all rights reserved. 76 Cloud RAN The best performance for Mobile BB Copyright © 2012 Wireless City Planning inc. all rights reserved. 77 but Copyright © 2012 Wireless City Planning inc. all rights reserved. 78 Except for Japan Dark Fiber does not exist everywhere! with reasonable price Copyright © 2012 Wireless City Planning inc. all rights reserved. 79 What could we do w/o centralized solution? Copyright © 2012 Wireless City Planning inc. all rights reserved. 80 TDD Copyright © 2012 Wireless City Planning inc. all rights reserved. 81 TDD Copyright © 2012 Wireless City Planning inc. all rights reserved. 82 Diversity of opinion Independence Decentralization Aggregation Copyright © 2012 Wireless City Planning inc. all rights reserved. 83 We should know the Power of TDD’s Frequency Reciprocity Beam Forming Null Steering Copyright © 2012 Wireless City Planning inc. all rights reserved. 84 Using reciprocity TDD => Autonomous nice performance without Dark Fiber Copyright © 2012 Wireless City Planning inc. all rights reserved. 85 We would say Copyright © 2012 Wireless City Planning inc. all rights reserved. 86 WWee pprroovviiddeess TTrruuee MMobobiillee BBrrooaaddbbaandnd Copyright © 2012 Wireless City Planning inc. all rights reserved. 87.