Post on 17-Jan-2015
description
transcript
1Copyright © 2012 Wireless City Planning inc. all rights reserved.
TrueMobile Broadband
Wireless City Planning
a Softbank company
2Copyright © 2012 Wireless City Planning inc. all rights reserved.
TrafficExplosion
20001993 2007
3G2G
1973
3Copyright © 2012 Wireless City Planning inc. all rights reserved.
x1K10 years
x325 years
x2/year
An inconvenient truth
4Copyright © 2012 Wireless City Planning inc. all rights reserved.
“Cloud” requires huge radio capacity
Let there be light
5Copyright © 2012 Wireless City Planning inc. all rights reserved.
Wemust survive
against Data Storm
6Copyright © 2012 Wireless City Planning inc. all rights reserved.
What do wehave to do?
7Copyright © 2012 Wireless City Planning inc. all rights reserved.
Reduce Interference
Smaller Cell
8Copyright © 2012 Wireless City Planning inc. all rights reserved.
Simple Smaller Cell
Poor fringe quality
BS1 BS2
BS3
9Copyright © 2012 Wireless City Planning inc. all rights reserved.
Smaller Cell +
nice Interference Cancel Technologies
BS1 BS2
BS3
10Copyright © 2012 Wireless City Planning inc. all rights reserved.
Next 10 to 15 Years
11Copyright © 2012 Wireless City Planning inc. all rights reserved.
LTE
All bandsGSM, UMTS
12Copyright © 2012 Wireless City Planning inc. all rights reserved.
Three different approaches toLTE
13Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
14Copyright © 2012 Wireless City Planning inc. all rights reserved.
Skip 3GSave 3G
Investment
GSM with limited WCDMA
15Copyright © 2012 Wireless City Planning inc. all rights reserved.
All in one chipare shipping
Single Eco-system
GSMUMTSLTE
16Copyright © 2012 Wireless City Planning inc. all rights reserved.
Shareexistingfacilities
17Copyright © 2012 Wireless City Planning inc. all rights reserved.
First application of LTE
Wireless DSLNomadic Data
18Copyright © 2012 Wireless City Planning inc. all rights reserved.
Smart PhoneSmart Phone
Gradually
Ready 2012
19Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
20Copyright © 2012 Wireless City Planning inc. all rights reserved.
Eco-system issue forcdma / WiMAX
Nationwide LTEmigration rapidly
with VoLTE
21Copyright © 2012 Wireless City Planning inc. all rights reserved.
1. GSM with limited WCDMA
2. Cdma / WiMAX
3. Well deployed UMTS
22Copyright © 2012 Wireless City Planning inc. all rights reserved.
deploy LTEfor capacity
Well deployedUMTS
23Copyright © 2012 Wireless City Planning inc. all rights reserved.
fortunately
24Copyright © 2012 Wireless City Planning inc. all rights reserved.
Concentrated Traffic
25Copyright © 2012 Wireless City Planning inc. all rights reserved.
70% > TRFgenerated at Indoor
26Copyright © 2012 Wireless City Planning inc. all rights reserved.
+4G+Wi-FiNation Wide
2/3G
2/3G
Urban/Suburban
27Copyright © 2012 Wireless City Planning inc. all rights reserved.
High Dense& Pinpoint
High Dense& Pinpoint
28Copyright © 2012 Wireless City Planning inc. all rights reserved.
High Dense& Pinpoint
High Dense& Pinpoint
29Copyright © 2012 Wireless City Planning inc. all rights reserved.
Also
30Copyright © 2012 Wireless City Planning inc. all rights reserved.
4G
All bandsGSM, UMTS
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
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
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
34Copyright © 2012 Wireless City Planning inc. all rights reserved.
so
35Copyright © 2012 Wireless City Planning inc. all rights reserved.
Offload2/3G2/3G
4G&
WiFi
4G&
WiFi
Traffic
36Copyright © 2012 Wireless City Planning inc. all rights reserved.
Is this enough?
37Copyright © 2012 Wireless City Planning inc. all rights reserved.
No!
38Copyright © 2012 Wireless City Planning inc. all rights reserved.
x1K10 years
x325 years
x2/year
An inconvenient True
39Copyright © 2012 Wireless City Planning inc. all rights reserved.
whatcould we do more
against Data Storm
40Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
41Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
42Copyright © 2012 Wireless City Planning inc. all rights reserved.
Mobile Internetfits better toTDD
43Copyright © 2012 Wireless City Planning inc. all rights reserved.
FDD = VoiceSymmetric
Internet fits better to TDD
Internet = TDDAsymmetric & Broadband
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%
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
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
47Copyright © 2012 Wireless City Planning inc. all rights reserved.
So, I would say…
48Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDDis the hope
against Data Storm
49Copyright © 2012 Wireless City Planning inc. all rights reserved.
but
50Copyright © 2012 Wireless City Planning inc. all rights reserved.
People ask me…
51Copyright © 2012 Wireless City Planning inc. all rights reserved.
DoesTDD have a eco-system?
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.
53Copyright © 2012 Wireless City Planning inc. all rights reserved.
Over
600M
200M
200M33M
and more... Subscribers1Billion
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
55Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD≒ FDDfor LTE
Single Eco-system
GSM
UMTS
LTE[F&T]
56Copyright © 2012 Wireless City Planning inc. all rights reserved.
Also
57Copyright © 2012 Wireless City Planning inc. all rights reserved.
People ask me…
58Copyright © 2012 Wireless City Planning inc. all rights reserved.
Has TDD been matured?
59Copyright © 2012 Wireless City Planning inc. all rights reserved.
Yes!It’s working Now!
60Copyright © 2012 Wireless City Planning inc. all rights reserved.
System Launchedin Nov.1st 2011
Major30+ Cities
Tokyo, Osaka, Nagoya…
61Copyright © 2012 Wireless City Planning inc. all rights reserved.
4G TDD
(20MHzBW)110Mbps110MbpsMax.
62Copyright © 2012 Wireless City Planning inc. all rights reserved.
CommercialDevice
Feb 2012
MiFi4G+3G
63Copyright © 2012 Wireless City Planning inc. all rights reserved.
20122012
NW Supports Smart Phone
64Copyright © 2012 Wireless City Planning inc. all rights reserved.
AcceleratingDeployments
2̃000eNB/Month
65Copyright © 2012 Wireless City Planning inc. all rights reserved.
Most of TRFCoverage
20132013
66Copyright © 2012 Wireless City Planning inc. all rights reserved.
Only One Small Concern is
67Copyright © 2012 Wireless City Planning inc. all rights reserved.
Launch beforeChina
68Copyright © 2012 Wireless City Planning inc. all rights reserved.
OurPotentials
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
70Copyright © 2012 Wireless City Planning inc. all rights reserved.
More antenna elements
More antenna elements
More speedMore speed
N MIMO : N elements
71Copyright © 2012 Wireless City Planning inc. all rights reserved.
Which one is easier to havemore antenna elements?
72Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
BBU
Distributed RRH@sites
Cloud BBU @LXC office
Dark Fiber
73Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
Which one is
much intelligent?
Distributed RAN
74Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RAN
Which one is
lower power consumption?
Distributed RAN
75Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RANw/pooling BBU
Which one is
more robust?
Distributed RAN
N+1
76Copyright © 2012 Wireless City Planning inc. all rights reserved.
Cloud RANThe best performance for Mobile BB
77Copyright © 2012 Wireless City Planning inc. all rights reserved.
but
78Copyright © 2012 Wireless City Planning inc. all rights reserved.
Dark Fiberdoes not exist everywhere!
with reasonable price
Except for Japan
79Copyright © 2012 Wireless City Planning inc. all rights reserved.
What could we dow/o centralized solution?
80Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
81Copyright © 2012 Wireless City Planning inc. all rights reserved.
TDD
82Copyright © 2012 Wireless City Planning inc. all rights reserved.
Diversity of opinionIndependence
Decentralization Aggregation
83Copyright © 2012 Wireless City Planning inc. all rights reserved.
Null SteeringBeam Forming
We should know the Power of TDD’s FrequencyReciprocity
84Copyright © 2012 Wireless City Planning inc. all rights reserved.
Using reciprocityTDD => Autonomous
nice performance without Dark Fiber
85Copyright © 2012 Wireless City Planning inc. all rights reserved.
We would say
86Copyright © 2012 Wireless City Planning inc. all rights reserved.
True Mobile
Broadband
True Mobile
Broadband
We providesWe provides