TrueMobile Broadband
WirelessCity Planninga Softbank company

Copyright © 2012 Wireless City Planning inc. all rights reserved.

1

TrafficExplosion

2G

1973

1993

3G
2000

２００７

Copyright © 2012 Wireless City Planning inc. all rights reserved.

2

An inconvenient
truth

x1K
10 years

32

raey/
2xx
5 years

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
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5

What do wehave to do?

Copyright © 2012 Wireless City Planning inc. all rights reserved.

6

Smaller Cell
ReduceInterference
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7

BS1

BS2

BS3

SimpleSmaller Cell

Poor fringe quality
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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 toLTE

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12

1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS

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13

GSM with limited
WCDMA

Skip 3G
Save 3G
Investment
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14

All in one chipare shipping
GSM
UMTSLTESingle
Eco-system
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15

Shareexisting
facilities

Copyright © 2012 Wireless City Planning inc. all rights reserved.

16

First applicationof LTE

Wireless DSL
Nomadic Data
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17

SmartSmart Phone
Phone
Ready 2012

Gradually

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18

1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS

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19

Eco-system issue forcdma / WiMAX

NationwideLTEmigration rapidly

with VoLTE
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20

1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS

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21

Well deployedUMTS

deploy LTE
for capacity
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22

fortunately

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23

Concentrated
Traffic

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24

70% > TRF

generated at Indoor

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25

Urban/Suburban

Nation Wide+4G+Wi-Fi

2/3G

2/3G
Copyright © 2012 Wireless City Planning inc. all rights reserved.

26

High Dense& Pinpoint

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27

High Dense& Pinpoint

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28

Also

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29

All bands
GSM, UMTS

4G
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30

Use Bands asa Cocktail

WiFi

Capacity
3500MHz
Pico
2600MHz

Coverage (Power) Micro 2100MHz
Macro 1800/1900MHz
Macro
700-900MHz
Copyright © 2012 Wireless City Planning inc. all rights reserved.

31nceToday each band(system) has
various sizeof cell

Capacity
Femtoterfe

Micro2G
900MHz MacroInCoverage

rePico

Macro

Pico
Micro

3G
Macro 2.1GHz
Macro

Copyright © 2012 Wireless City Planning inc. all rights reserved.

32

Dedicated Pico bands
would give us ahuge Capacity
Coverage (Power)

WiFi

Capacity
Pico
3500MHz
2600MHz
2300MHzMicro 2100MHz
Macro 1800/1900MHz
Macro

700-900MHz

Copyright © 2012 Wireless City Planning inc. all rights reserved.

33

soCopyright © 2012 Wireless City Planning inc. all rights reserved.

34

OffloadTraffic

2/3G
4G&WiFi

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35

Is this enough?

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36

No!
Copyright © 2012 Wireless City Planning inc. all rights reserved.

37

An inconvenient
True

x1K
10 years

32

raey/
2xx
5 years

Copyright © 2012 Wireless City Planning inc. all rights reserved.

38

whatcould we do moreagainst Data Storm
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39

TDD
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40

TDD
Copyright © 2012 Wireless City Planning inc. all rights reserved.

41

Mobile Internet
fits better toTDD

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42

Internet fits better to TDD

FDD = Voice
Symmetric

Internet = TDD
Asymmetric & Broadband

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43

FDD

TDD

Guard Band >>10%
T

T

GuardTime<<10%ULULDL

GB

U:D=1:1DL
F

N:1

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F44

2.5/2.6GHz
FDD
B7

TDD
B41
TT

25%
37% 26% 37%

190MHz2xF

5%70%
190MHzCopyright © 2012 Wireless City Planning inc. all rights reserved.

F

45

Inter Bands Guard Band >>10%
T

FDD

DL

UL

UL

DL

=FT

TDD

UL

ULULDLDLDLF

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46

So, I would say…

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47

TDD
is the hopeagainst Data Storm
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48

but

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49

People ask me…

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50

Does
TDD have aeco-system?

Copyright © 2012 Wireless City Planning inc. all rights reserved.

51

Yes!
We are here!

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52

Global TD-LTE Initiative (GTI)
Since Feb 2011 in MWC

Initiators
China Mobile
Bharti Airtel
Softbank
Vodafone
ClearWire

32

Operators*Include several WiMAX operators.53

Copyright © 2012 Wireless City Planning inc. all rights reserved.

600M
200M
200M
33M
and more...

Over

1Billion
Subscribers

Copyright © 2012 Wireless City Planning inc. all rights reserved.

54

TDD band
opportunities

3.7GHz 200MHz
3.5GHz 200MHz
2.6GHz 200MHz2.3GHz 100MHz
1.9GHz 40MHz
2.0GHz 15MHz

755MHzBandwidth

Copyright © 2012 Wireless City Planning inc. all rights reserved.

55

TDD ≒ FDD
for LTE
GSM
UMTS
LTE[F&T]

SingleEco-system
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56

Also

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57

People ask me…

Copyright © 2012 Wireless City Planning inc. all rights reserved.

58

Has TDD
been matured?

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59

Yes!
It’s working Now!
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60

System Launchedin Nov.1st 2011

Major
30+ Cities
Tokyo, Osaka, Nagoya…
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61

4G TDDMax.

110Mbps(20MHzBW)

Copyright © 2012 Wireless City Planning inc. all rights reserved.

62

Feb 2012

Commercial
DeviceMiFi
4G+3G

Copyright © 2012 Wireless City Planning inc. all rights reserved.

63

2012
2012

NW Supports
Smart Phone
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64

Accelerating
Deployments~2000eNB/Month

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65

2013
2013
Most of TRFCoverage

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66

Only One
Small Concern is

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67

LaunchbeforeChina
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68

Our
Potentials
Copyright © 2012 Wireless City Planning inc. all rights reserved.

69

160k Micro cell Sites
are available
for 4G
150BS/km2

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70

More speed
More antenna
elements
N MIMO : N elements
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71Which one is easier to havemore antenna elements?

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72

Cloud RAN

Dark Fiber
Distributed RRH@sitesBBU
Cloud BBU
@LXC office

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73

Which one ismuch intelligent?

Distributed RAN

Cloud RAN

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74

Which one islower power consumption?

Distributed RAN

Cloud RAN

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75

Which one ismore robust?
N+1

Distributed RAN

Cloud RANw/pooling BBU

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76

Cloud RAN
The best performance for Mobile BB

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77

but

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78

Except for Japan

Dark Fiberdoes not exist
everywhere!

withreasonable price

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79

What could we do
w/o centralized solution?

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80

TDD
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81

TDDCopyright © 2012 Wireless City Planning inc. all rights reserved.

82

Diversity of opinion
Independence
Decentralization
Aggregation

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83

We should know the Power ofTDD’s Frequency
Reciprocity

Beam Forming

Null Steering
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84

Using reciprocity

TDD => Autonomous

nice performance
without Dark Fiber
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85

We would say

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86

We provides

TrueMobileBroadband
Copyright © 2012 Wireless City Planning inc. all rights reserved.

87