Day 2-keynote-0920 yoshioki-chika-20120524
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Transcript of Day 2-keynote-0920 yoshioki-chika-20120524
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1Copyright © 2012 Wireless City Planning inc. all rights reserved.
TrueMobile Broadband
Wireless City Planning
a Softbank company
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2Copyright © 2012 Wireless City Planning inc. all rights reserved.
TrafficExplosion
20001993 2007
3G2G
1973
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3Copyright © 2012 Wireless City Planning inc. all rights reserved.
x1K10 years
x325 years
x2/year
An inconvenient truth
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4Copyright © 2012 Wireless City Planning inc. all rights reserved.
“Cloud” requires huge radio capacity
Let there be light
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5Copyright © 2012 Wireless City Planning inc. all rights reserved.
Wemust survive
against Data Storm
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6Copyright © 2012 Wireless City Planning inc. all rights reserved.
What do wehave to do?
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7Copyright © 2012 Wireless City Planning inc. all rights reserved.
Reduce Interference
Smaller Cell
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8Copyright © 2012 Wireless City Planning inc. all rights reserved.
Simple Smaller Cell
Poor fringe quality
BS1 BS2
BS3
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9Copyright © 2012 Wireless City Planning inc. all rights reserved.
Smaller Cell +
nice Interference Cancel Technologies
BS1 BS2
BS3
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10Copyright © 2012 Wireless City Planning inc. all rights reserved.
Next 10 to 15 Years
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11Copyright © 2012 Wireless City Planning inc. all rights reserved.
LTE
All bandsGSM, UMTS
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12Copyright © 2012 Wireless City Planning inc. all rights reserved.
Three different approaches toLTE
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13Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
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14Copyright © 2012 Wireless City Planning inc. all rights reserved.
Skip 3GSave 3G
Investment
GSM with limited WCDMA
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15Copyright © 2012 Wireless City Planning inc. all rights reserved.
All in one chipare shipping
Single Eco-system
GSMUMTSLTE
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16Copyright © 2012 Wireless City Planning inc. all rights reserved.
Shareexistingfacilities
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17Copyright © 2012 Wireless City Planning inc. all rights reserved.
First application of LTE
Wireless DSLNomadic Data
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18Copyright © 2012 Wireless City Planning inc. all rights reserved.
Smart PhoneSmart Phone
Gradually
Ready 2012
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19Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
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20Copyright © 2012 Wireless City Planning inc. all rights reserved.
Eco-system issue forcdma / WiMAX
Nationwide LTEmigration rapidly
with VoLTE
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21Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
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22Copyright © 2012 Wireless City Planning inc. all rights reserved.
deploy LTEfor capacity
Well deployedUMTS
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23Copyright © 2012 Wireless City Planning inc. all rights reserved.
fortunately
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24Copyright © 2012 Wireless City Planning inc. all rights reserved.
Concentrated Traffic
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25Copyright © 2012 Wireless City Planning inc. all rights reserved.
70% > TRFgenerated at Indoor
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26Copyright © 2012 Wireless City Planning inc. all rights reserved.
+4G+Wi-FiNation Wide
2/3G
2/3G
Urban/Suburban
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27Copyright © 2012 Wireless City Planning inc. all rights reserved.
High Dense& Pinpoint
High Dense& Pinpoint
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28Copyright © 2012 Wireless City Planning inc. all rights reserved.
High Dense& Pinpoint
High Dense& Pinpoint
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29Copyright © 2012 Wireless City Planning inc. all rights reserved.
Also
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30Copyright © 2012 Wireless City Planning inc. all rights reserved.
4G
All bandsGSM, UMTS
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31Copyright © 2012 Wireless City Planning inc. all rights reserved.
Capacity
Coverage (Power)
Use Bands asa Cocktail
700-900MHz
1800/1900MHz
2100MHz
3500MHz 2600MHz
WiFi
MacroMacro
Micro
Pico
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32Copyright © 2012 Wireless City Planning inc. all rights reserved.
CapacityToday each band (system) has various size of cell
Macro
Macro
Micro
Pico
2G900MHz
Coverage
Macro
Macro
Micro
Pico
Femto
3G2.1GHzInt
erfere
nce
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33Copyright © 2012 Wireless City Planning inc. all rights reserved.
Capacity
Coverage (Power)
Dedicated Pico bandswould give us ahuge Capacity
700-900MHz
1800/1900MHz
2100MHz
3500MHz 2600MHz2300MHz
WiFi
MacroMacro
Micro
Pico
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34Copyright © 2012 Wireless City Planning inc. all rights reserved.
so
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35Copyright © 2012 Wireless City Planning inc. all rights reserved.
Offload2/3G2/3G
4G&
WiFi
4G&
WiFi
Traffic
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36Copyright © 2012 Wireless City Planning inc. all rights reserved.
Is this enough?
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37Copyright © 2012 Wireless City Planning inc. all rights reserved.
No!
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38Copyright © 2012 Wireless City Planning inc. all rights reserved.
x1K10 years
x325 years
x2/year
An inconvenient True
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39Copyright © 2012 Wireless City Planning inc. all rights reserved.
whatcould we do more
against Data Storm
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40Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
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41Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
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42Copyright © 2012 Wireless City Planning inc. all rights reserved.
Mobile Internetfits better toTDD
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43Copyright © 2012 Wireless City Planning inc. all rights reserved.
FDD = VoiceSymmetric
Internet fits better to TDD
Internet = TDDAsymmetric & Broadband
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44Copyright © 2012 Wireless City Planning inc. all rights reserved.
GuardTime
<<10%
T
FDD TDD
UL
DLGB DLUL
T
F FN:1U:D=1:1
Guard Band >>10%
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45Copyright © 2012 Wireless City Planning inc. all rights reserved.
5%
T
FDDB7
TDDB41
25%
70%26% 37%37%
T
F F190MHz190MHz
2x
2.5/2.6GHz
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46Copyright © 2012 Wireless City Planning inc. all rights reserved.
Inter Bands Guard Band >>10%
F
T
FDD DLUL DLUL
T
F
TDDUL
DL=
UL
DL
UL
DL
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47Copyright © 2012 Wireless City Planning inc. all rights reserved.
So, I would say…
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48Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDDis the hope
against Data Storm
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49Copyright © 2012 Wireless City Planning inc. all rights reserved.
but
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50Copyright © 2012 Wireless City Planning inc. all rights reserved.
People ask me…
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51Copyright © 2012 Wireless City Planning inc. all rights reserved.
DoesTDD have a eco-system?
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52Copyright © 2012 Wireless City Planning inc. all rights reserved.
Global TD-LTE Initiative (GTI) Since Feb 2011 in MWC
InitiatorsChina MobileBharti AirtelSoftbankVodafoneClearWire
32Operators
*Include several WiMAX operators.
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53Copyright © 2012 Wireless City Planning inc. all rights reserved.
Over
600M
200M
200M33M
and more... Subscribers1Billion
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54Copyright © 2012 Wireless City Planning inc. all rights reserved.
755MHz Bandwidth
TDD bandopportunities
3.7GHz 200MHz3.5GHz 200MHz2.6GHz 200MHz2.3GHz 100MHz1.9GHz 40MHz2.0GHz 15MHz
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55Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD≒ FDDfor LTE
Single Eco-system
GSM
UMTS
LTE[F&T]
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56Copyright © 2012 Wireless City Planning inc. all rights reserved.
Also
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57Copyright © 2012 Wireless City Planning inc. all rights reserved.
People ask me…
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58Copyright © 2012 Wireless City Planning inc. all rights reserved.
Has TDD been matured?
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59Copyright © 2012 Wireless City Planning inc. all rights reserved.
Yes!It’s working Now!
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60Copyright © 2012 Wireless City Planning inc. all rights reserved.
System Launchedin Nov.1st 2011
Major30+ Cities
Tokyo, Osaka, Nagoya…
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61Copyright © 2012 Wireless City Planning inc. all rights reserved.
4G TDD
(20MHzBW)110Mbps110MbpsMax.
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62Copyright © 2012 Wireless City Planning inc. all rights reserved.
CommercialDevice
Feb 2012
MiFi4G+3G
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63Copyright © 2012 Wireless City Planning inc. all rights reserved.
20122012
NW Supports Smart Phone
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64Copyright © 2012 Wireless City Planning inc. all rights reserved.
AcceleratingDeployments
2̃000eNB/Month
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65Copyright © 2012 Wireless City Planning inc. all rights reserved.
Most of TRFCoverage
20132013
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66Copyright © 2012 Wireless City Planning inc. all rights reserved.
Only One Small Concern is
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67Copyright © 2012 Wireless City Planning inc. all rights reserved.
Launch beforeChina
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68Copyright © 2012 Wireless City Planning inc. all rights reserved.
OurPotentials
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69Copyright © 2012 Wireless City Planning inc. all rights reserved.
150BS/km2150BS/km2
160k Micro cell Sitesare available for 4G
160k Micro cell Sitesare available for 4G
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70Copyright © 2012 Wireless City Planning inc. all rights reserved.
More antenna elements
More antenna elements
More speedMore speed
N MIMO : N elements
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71Copyright © 2012 Wireless City Planning inc. all rights reserved.
Which one is easier to havemore antenna elements?
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72Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
BBU
Distributed RRH@sites
Cloud BBU @LXC office
Dark Fiber
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73Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
Which one is
much intelligent?
Distributed RAN
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74Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
Which one is
lower power consumption?
Distributed RAN
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75Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RANw/pooling BBU
Which one is
more robust?
Distributed RAN
N+1
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Cloud RANThe best performance for Mobile BB
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but
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Dark Fiberdoes not exist everywhere!
with reasonable price
Except for Japan
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What could we dow/o centralized solution?
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TDD
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TDD
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Diversity of opinionIndependence
Decentralization Aggregation
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Null SteeringBeam Forming
We should know the Power of TDD’s FrequencyReciprocity
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Using reciprocityTDD => Autonomous
nice performance without Dark Fiber
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We would say
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True Mobile
Broadband
True Mobile
Broadband
We providesWe provides