IoT and Evolution of Mobile Networks toward 5G

Evolution of Mobile Networks and IoT

(IoT時代の５Gネットワーク)Mick Etoh

@mickbean

NTT DOCOMO

1© 2016 NTT DOCOMO, INC. All rights reserved.

© 2013 NTT DOCOMO, INC. All rights reserved.

What is Innovation?

Joseph Schumpeter‘s “neuer Kombinationen” (Theorie der wirtschaftlichen Entwicklung)

2

Innovation Example

2.5G Internet connectivity, DOCOMO

1998

Micro Browser, Access Co.

1995

i-mode, DOCOMO

1999New Biz. Concept:

Content Provider Bazar


Wireless Technologies, the EnablersPersonal Storage SNS/Comm. Tools

LTE:～75Mbps2010

+Big data synchronization

Application Market (games, net contents, etc.)

3.5G: ～14Mbps 2006

+Smart Phone + Cloud

Mobile Multimedia

3G: 64-384Kbps 2001+CODEC

i-mode

2G:9.6KbpsX3 1998 +micro browser


Very Simplified Formula（単純な式）

Wireless Broadband

Innovation X?


❌

Distributed Speech Recognition(DSR) in 2006　（分散音声認識）

First Implementation of ETSI AURORA Project (2000-2003)16 Khz Sampling MFCC feature vectors --> 5.6 Kbps

Mobile Terminal

Feature Extraction

Result

Encode

Server

Decode Rec. Engine

Dictionary



Wireless Broadband

Smartphone with GPS

Google Maps

On-Line Payment

LTE-Advanced Network　（２０１６-）Macro Cell Base Station

Small Cell Base Station

Centeraized Radio AccessNetwork


© 2016 NTT DOCOMO, INC. All rights reserved.9

Use Case Categories : ITU-R vision for IMT-2020 and beyond


eMBB and New Use Cases

10

5G in 2020

eMBB

MassiveMTC

CriticalMTC

eLTE New RATLow latency

New RAT will mainly focus on eMBB

5G+ in 202X

eMBB

MassiveMTC

CriticalMTC

eLTE New RAT

New RAT will be enhancedfor all use cases


Massive MIMO/ beamforming

Cell range extension

Improved spectral efficiency

Well localized waveform

Frequency

Time

New numerologywith shorter TTI

Wider bandwidth and low latency

LTE

New RAT

ft

Lean radio frameLess inter-cell interference,

energy saving, good forward compatibility

5G 5G 5G 5G 5G

5G 5G+

5G 5G++

5G+

5G (2020)

5G (202X)

・LTEに比較して，周波数帯域幅を拡大し，TTI長を短縮・eMBB, URLLC向け

・同一バンド内で異なる無線パラメータを多重するためのフィルタ（もしくはWindowing）を施したOFDM信号

・mMTC, URLLC向け

・LTEと比較してトラヒックの有無によらず常時送信する信号（例えばモビリティ測定に用いる参照信号）の量を減らし，干渉量を減らすとともに消費電力を下げることができる5Gの基本的な無線フレーム構成・全てのUse case向け

・高周波数帯で多数のアンテナ素子を用いてビームフォーミングおよびマルチユーザMIMO

・eMBB向け

New RAT

5G Key Technologies for 2020 Deployment


Flexible duplex with unlicensed

spectrum(e.g. LTE-assisted

access)Licensed

Band(LTE)

UnlicensedBand

(New RAT)

f

C/U-plane split(dual connectivity,

CA)eLTE/ new RAT(C/U-plane)

New RAT(U-plane)

NOMA on LTEFurther cellular enhancement with

massive connectivity

Intentional non-orthogonality

fNOMA

fOMA

IoT related LTE enhancementsLow cost / Long battery life

devices

・高周波数帯およびスモールセルを高効率に運用するため，制御プレーンをマクロセルのみで提供するアーキテクチャ・eMBB向け

・LTEからのアシストによるTDDバンドやアンライセンスバンドの活用・eMBB向け

・送信信号を非直交多重し，通信容量を拡大する技術・eMBB向け（上りリンクはmMTC向けにも検討）

・カバレッジ拡張や，狭帯域送信などの低コストIoT向けLTE技術，およびLTEにおけるV2xなどの機能サポート・mMTC向け（V2xはURLLC的要素も含む）

Tight LTE integration5G Key Technologies for 2020 Deployment


A Possible Formula in 5G (2020-)

Connectivity of Things

Night Golf

Minitualized 5G Module


Positioning of Things


Quuppa Golf - YouTube

Strategic Norm: as late as practical

Connectivity of Things (T.B.D.)

Innovation X

?


low latency Comms. (T.B.D.)

Enhanced Mobile Broadband

Late Biding


Decide as late as possible, particularly for decisions that are irreversible


発表はここまで


5G Experiments 【w/ Nokia】 @ 70GHz

19

• Single carrier & beamforming technology using millimeter wave

AP (Access Point):Beamforming

with Lens antenna UD (User device)

Center freq. 73.5 GHzBandwidth 1 GHzAntenna Lens antennaBeam width 3 deg.

2Gbps


5G Experiments 【w/ Nokia】 @ 70GHz

Engineering

IoT and Evolution of Mobile Networks toward 5G