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Seizo ONOE CTO and EVP NTT DOCOMO, INC. IEEE Wireless Communications and Networking Conference (WCNC) 2015, Mar. 9-12, New Orleans 5G and Beyond

5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

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Page 1: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Seizo ONOE CTO and EVP

NTT DOCOMO, INC.

The Brooklyn 5G Summit IEEE Wireless Communications and Networking Conference (WCNC) 2015, Mar. 9-12, New Orleans

5G and Beyond

Page 2: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

The Brooklyn 5G Summit

LTE update

History

5G Discussions

5G Technology

Conclusion

LTE update

History and Future

5G Discussions

5G Technology

IEEE Wireless Communications and Networking Conference (WCNC) 2015, Mar. 9-12, New Orleans

Extra topics

Page 3: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

LTE update

The Brooklyn 5G Summit

Extra topics

LTE update

History

5G Discussions

5G Technology

Conclusion

Page 4: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

0

100

200

300

2004 2003 2002 2001 2005 2006 2007

2012 2011 2010 2009 2013 2014 2015

Numbers of Operators N

um

ber

of

op

era

tors

3G:W-CDMA

LTE

March 11, 2015 Seizo ONOE 4

Page 5: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

5

Up approx. 50%

対応 8機種

約130万台

の普及も拡大

LTE Subscriptions

Topped 28 million

Combined sales of 13 VoLTE-enabled

models:

Approx. 3.3 million

Uptake of also expanding

◆ Numbers in the graph above represent the user count at the end of each quarter. ◆ Sales data of VoLTE-enabled models represent the units sold as of Jan. 25, 2015

Page 6: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

2.1GHz Band (band1)

800MHz (band19)

1.7GHz (band9 band3)

700MHz (band 28)

1.5GHz Band

(band21)

CY 2010 2011 2012 2013 2014 2015 2016

3.4GHz Band

(band42)

Spectrum LTE (DOCOMO)

6 Seizo ONOE

Today

LTE(5-15MHz×2) LTE(15MHz×2)

3G LTE(5-10MHz×2) Expand bandwidth in accordance with the spread of LTE UEs

3G

3G LTE(20MHz×2)

TD-LTE(40MHz×1 )

March 11, 2015

Page 7: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

History and Future

The Brooklyn 5G Summit

Extra topics

LTE update

History

5G Discussions

5G Technology

Conclusion

Page 8: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

History from 1G to 4G

March 11, 2015 8 Seizo ONOE

2000s

2000 2005 2010

LTE/LTE-Advanced

4G OFDMA/SCFDMA 100M-1Gbps Experiments

Super3G Concept

3G

1980 1985 1990

1G Analogue Cellular

TDMA Concept

GSM/ PDC/ TDMA

2G Paper by Dr. Kinoshita ICC’81 and IEEE Trans. VT, 1982

1980s

2010s

2010 2015 2020

Now what? 4G 5G

1990s

1990

2G

1995 2000

WCDMA 2Mbps Experiments

3G WCDMA/ CDMA2000

Details

10Gbps Experiments at 11GHz

and the Next Chronological table

Page 9: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

History of 4G Research at DOCOMO

March 11, 2015 9 Seizo ONOE

100Mbps in 2002-2003

1Gbps in 2004-2005

5Gbps in 2006

Background: 4G research outcome of over 1Gbps data transmission

Page 10: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

3G Subscriber Growth

March 11, 2015 10 Seizo ONOE

0.0

5.0

10.0

15.0

20.0

25.0

(百万)

10 1 4 7 10 1 4 7 10 1 4 7 10 1 4 7 10 1

million

2001 2002 2003 2005 2004 2006

Nu

mb

er

of su

bscri

be

r

On the other hand, 3G services had not been well accepted by the market.

Page 11: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Super3G concept

March 11, 2015 11 Seizo ONOE

March 28, 2008 DoCoMo / Seizo ONOE 28Copyright© 2008 NTT DoCoMo, Inc. All rights reserved26th May 2004, ICB3G

migration to migration to 44GGNOW

3G Evolution

4G Launch

3G

(2010s)

3G

3G

4G 4G

3G

3G4G

3G

4G

3G 3G3G

4GSuper3G Super 3G4G

Super 3G

Scenario 2:

Maximize existing

3G NW assets in

building 4G

Scenario 3:

First evolve 3G, then

build 4G on top

Scenario 1:

Independent 4G

system

26th May 2004, ICB3G

Ideas on migration to 4G (3)Ideas on migration to 4G (3)

NOW 4G Evolution4G Launch

Scenario 3 : First evolve 3G, then build 4G on top

→ Extensibility is greater than Scenario2

→Cost is lower than Scenario1

(Innovative 4G evolution possible)

3G Evolution

3G 3G3G

4GSuper3G Super3G

4G

Super3G

※Super3G : The name of Enhanced3G called in DoCoMo

(2010s)

26th May 2004, ICB3G

Smooth path to the next generation was essential.

⇒In, 2004, DoCoMo proposed Super3G concept

for the smooth path to 4G.

Page 12: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Original Aims of Super3G

Basic concept (Original aims)

Long term evolution of 3G

Evolve 3G technologies by

maintaining competitiveness

Provide a smooth

introduction path to 4G

Background

At the start of standardization

in 2004, interest in 4G was low

In 2008, for the proposal to

ITU-R IMT-Advanced, it was

clearly indicated that LTE

Advanced should be an

evolution of LTE

March 11, 2015 12 Seizo ONOE

2000 2005 2010 2015

Start in

DoCoMo

Start in

World market

Wide spread in

HSDPA

R99

4G

HSUPA

Super 3G S3G 3G Spectrum

4G Spectrum

スムースな4G導入

R99

HSDPA

HSUPA

4G

3Gの長期的エボリューション

_競争力維持

Smooth

introduction of 4G

Long term evolution of 3G

System performance

2000 2010

4G

Super3G

HSUPA

HSDPA

WCDMA Release99

• LTE provides a smooth evolution

path to 4G (LTE-Advanced)

LTE

LTE-A

• LTE provides a smooth evolution

path to 4G (LTE-Advanced)

People were not so interested in “4G” at the

early stage of standardization, in 2004.

Page 13: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

3GPP document contributed by DOCOMO and 25 co-sources

TSG-RAN Meeting #26 RP-040461 Athens, Greece, 8-10, December, 2004 Agenda Item:8.12 Source: NTT DoCoMo, Alcatel, Cingular Wireless, CMCC, Ericsson, Fujitsu, Huawei, LG Electronics, Lucent Technologies, Mitsubishi Electric, Motorola, NEC, Nokia, Nortel Networks, Orange, Panasonic, Philips, Qualcomm Europe, Samsung, Sharp, Siemens, Telecom Italia, Telefonica, TeliaSonera, T-Mobile, Vodafone Title: Proposed Study Item on Evolved UTRA and UTRAN Document for:Discussion and approval In the RAN Future Evolution Workshop, many of the presentations pointed out the need of 3G long-term evolution to meet the future demand and to maintain its competitive position for coming decades. Several interesting new technology components such as OFDM with a flexible and broader RF bandwidth were presented as potential candidates for the evolution. It was pointed out such a technology enhancement should be applied to UTRAN architecture as well as the UTRA radio interface. It is proposed that 3GPP should initiate the feasibility study of the long-term evolution accounting for the above situation. In this paper, a Study Item Description is presented for this study. Concerning the time plan, we propose to complete the feasibility study by June 2006 and envisage all relevant core specifications by June 2007.

Page 14: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

History from 1G to 4G

March 11, 2015 14 Seizo ONOE

Details and the Next

2000s

2000 2005 2010

LTE/LTE-Advanced

4G OFDMA/SCFDMA 100M-1Gbps Experiments

Super3G Concept

3G

1980 1985 1990

1G Analogue Cellular

TDMA Concept

GSM/ PDC/ TDMA

2G

Paper by Dr. Kinoshita ICC’81 and IEEE Trans. VT, 1982

1980s

2010s

2010 2015 2020

Now what? 4G 5G

1990s

1990

2G

1995 2000

WCDMA 2Mbps Experiments

3G

WCDMA/ CDMA2000

10Gbps Experiments at 11GHz

Chronological table

2020s

2020 2025 2030

5G

2030 2035 2040

7G 6G

5G

OFDMA

TDMA

WCDMA

No contents No technology

4G

3G

2G

It’s a marketing gimmick after

3G, while technologies were

there before 5G

No single representative technology, but

there are several candidate technologies

and the combinations of technologies create new

technologies and solutions.

5G Technology

No Tech

Boom: 5G is hype?

Page 15: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

5G Discussions

The Brooklyn 5G Summit

Extra topics

LTE update

History

5G Discussions

5G Technology

Conclusion

Page 16: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Global 5G Activities

The Brooklyn 5G Summit

Page 17: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Global 5G Activities

Discussions on 5G become active worldwide.

Future IMT Vision in ITU-R WP5D

Vision2020/ Network2020

National/regional projects on 5G

Special sessions on 5G in international conferences

Global initiative to define operator requirements on “5G”

2020 and Beyond AH

5G Project

March 11, 2015 Seizo ONOE 17

Page 18: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Requirements

What is 5G?

The Brooklyn 5G Summit

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Page 19: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Requirements

Higher data rate

Lower Latency

Massive

connectivity

Extremely low

power consumption 15 years battery life

Higher capacity

Traditional and Eternal requirements

Use cases

Lower cost

New requirements

Energy saving

4G, 5G-

1G, 2G, 3G, 4G, 5G-

5G-

Flexibility for

Business models

and Ecosystem

for Internet of Things

2G, 3G, 4G, 5G-

Page 20: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

What is 5G?

Technology Aspect

Ecosystem, Customer and Business Aspect

e.g. NGMN Vision

5G is an end-to-end ecosystem to enable a fully mobile

and connected society. It empowers value creation towards customers and partners, through existing

and emerging use cases, delivered with consistent experience, and enabled

by sustainable business models.”

5G is a new Radio Technology

and/or Evolution of 4G LTE.

It includes Network Architecture

and Core Network Technology.

Other

Industry

Sectors

Other

Industry

Sectors

Page 21: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Time Plan

The Brooklyn 5G Summit

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Page 22: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

4G LTE

Evolution of Mobile Technology

2020 2025 2030

2010 2015 2020

LTE-Advanced LTE 4G

5G+ 5G

•+New bands licensed after

2020 Massive-MIMO, ・・・

•Existing frequency bands

•New bands licensed by 2019

•Unlicensed bands FD-MIMO, NOMA, Lean Carrier Design.

New Numerology

mmW

Page 23: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

The Brooklyn 5G Summit

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Technology Coverage

for

Use Cases and

Frequency Bands

Page 24: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

8K

Low-power

High

performance

8K

Low

-pow

er

Hig

h

perfo

rmance

5G utilizes wide range of frequency bands and their combinations with interworks

5G

co

vers

wid

e v

arie

ty o

f u

se c

ase

s

Different technologies may be used for different use cases and different frequency bands.

Tech. 1

Tech. 4

Tech. 5 Tech.

7

Tech. 2

Tech. 3

Tech. 6

5G A single technology, which is consisted of multiple components with consistent design basis,

is used for whole range.

Tech. 7

Tech. 3

Tech. 4

A major technology and complementary technologies

are used.

A single technology, which is consisted of multiple components with consistent design basis,

is used for whole range. 5G

Existing spectrum New spectrum

Frequency

3-10GHz 10-30GHz > 30GHz

Building up a sense

of presence

You feel as if you

were actually there

Page 25: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Technology

Convergence or Divergence

The Brooklyn 5G Summit

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Page 26: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

1970s 1980s 1990s 2000s 2010s 2020s 2030s

PDC

GSM

IS-95

IS-136

NTT

AMPS

NMT

C-Netz

RC-2000

WCDMA

CDMA 2000

LTE/

LTE-A

PHS

WiMAX

TACS 5G

Wireless MAN

Wireless WAN

Cellular System 6G

IrDA Bluetooth

UWB

Z-Wave ZigBee

Wireless LAN

Wireless PAN

Trunked radio system TETRA

802.11b/a

iDEN

WiFi 802.11n 802.11ax

Near field communication Felica NFC

WiGig WirelessHD

Intelligent Transport Systems

PAL

NTSC

SECAM

DVB/T

ATSC

ISDB-T

802.11ac

DVB/H

T-DMB

1Seg ISDB-Tmm

MediaFLO

802.11p

Broadcast

Low Power Wide Area SigFox

Neul

6G

WMAN

6G

TRS

6G

ITS 6G

WLAN

6G

WPAN

WPAN

WPAN

WPAN

NFC-A NFC-B

NFC-C

Mobile TV1

Mobile TV2

LPWA LPWA LPWA

Technology convergence is ideal, but divergence is likely to happen.

Page 27: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

5G R&D Activities

The Brooklyn 5G Summit

Global Activities

Requirements

Time Plan

Concept and Spectrum

Technology Coverage

Convergence or Divergence

Scenarios

R&D activities

Conclusion

Page 28: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

5G Real-Time Simulator

Page 29: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

March 2, 2015

Page 30: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

3-6GHz 6-30GHz > 30GHz Ex. 800MHz, 2GHz

NEW NEW

Frequency

Page 31: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

5G Technology

The Brooklyn 5G Summit

Extra topics

LTE update

History

5G Discussions

5G Technology

Conclusion

Page 32: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Evolution paths to 5G P

erf

orm

ance

5G

March 11, 2015 Seizo ONOE 32

Rel-10/11

Rel-8/9

LTE

Rel-12/13

Potential

New Technology

Rel-14/15,…

Further LTE

enhancements

LTE-Advanced Backward compatible enhancements

Big gain

2015 2020 Year 2010

Macro-assisted small cell enhancement

(Phantom cell)

1000x Data, true?

Technology Massive MIMO Phantom cell (Macro/Small-cell) NOMA (Non-orthogonal Multiple Access)

Combinations of Technologies

• Massive MIMO + Macro/Small-cell

• New Numerology/Lean Carrier Design (New spectrum/ Higher Spectrum)

Page 33: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

“蛮力” Future Technology

March 11, 2015 33 Seizo ONOE

This is old technology and may become buzzword.

“力業”

Advanced C-RAN

LTE-Advanced key features

Carrier aggregation

HetNet/ Small cell

The combination of Carrier Aggregation and Small Cells with C-RAN will create new excellent features.

This is not so smart technology. “Brute force”

蛮力

Page 34: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Advanced C-RAN Concept

Core Network

EPC

RRE

eNodeB

LTE-A

LTE-A

Macro cells

Small cells

RRE

CA CA

BBU BBU BBU

RRE RRE

RRE RRE

RRE

• To achieve high-speed and high-capacity

• To maintain connectivity via macro cell

• Easy deployment even with higher frequency

• Less signaling to core-network by reducing handover processing

Carrier-Aggregation between Macro-cell and Small-cell, with C-RAN

e.g. 3.5GHz LTE-A

LTE-A e.g. 2.1GHz

Macro cell

Small cell (Add-on cell)

March 11, 2015 Seizo ONOE 34

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5G provides Higher data speed and Higher capacity.

Broader spectrum bandwidth

Higher frequency spectrum

Larger propagation loss

Shorter coverage

5G is a Hotspot system for complementary use.

Existing spectrum New spectrum

Frequency

e.g. 3-10GHz e.g. 10-30GHz e.g. > 30GHz

A wrong story I don’t like

Let’s tackle the challenge of achieving wide coverage

as cellular systems even with higher spectrum.

Page 36: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved

Massive MIMO and Macro/Small-cell

March 11, 2015 36 Seizo ONOE

Small cell

Massive MIMO

? is about increasing the number of antennas.

Macro cell Adaptive Array Systems had a problem in coverage for common channels.

The combination of

Massive MIMO and

Macro-assisted small cell will provide

adequate cell coverage even with higher frequency bands.

“an excellent feature”

蛮力

NOMA

The implementation technology is key.

力業“Brute force”

“Feat of strength”

Page 37: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Google

Massive-MIMO and Macro/Small-cell

Small Cell

Small Cell

Small Cell

Small Cell

User data

Macro Cell

Control and

User data

NOMA

Page 38: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Conclusion

The Brooklyn 5G Summit

Extra topics

LTE update

History

5G Discussions

5G Technology

Conclusion

Page 39: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

LTE is successful in global deployment.

History has learning to the future.

No single 5G technology today, but the combinations of technologies create new technologies and solutions. Let’s achieve wide cell coverage as cellular evolution even with higher spectrum.

5G is the technology for 2020 and beyond.

5G covers wide variety of use cases.

5G utilizes wide range of frequency

bands with consistent design basis.

Page 40: 5G and Beyond - IEEE WCNCwcnc2015.ieee-wcnc.org/sites/wcnc2015.ieee-wcnc.org... · HSDPA WCDMA Release99 ... TSG-RAN Meeting #26 ... flexible and broader RF bandwidth were presented

Copyright© 2015 NTT DOCOMO, Inc. All rights reserved March 11, 2015 40 Seizo ONOE