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