DoCoMo’sDoCoMo’s i-modei-mode

Toward Mobile Multimedia in 3GToward Mobile Multimedia in 3G

March 29, 2000March 29, 2000

IETF 47, Plenary SessionIETF 47, Plenary Session

NTT Mobile Communications Network, Inc.NTT Mobile Communications Network, Inc.Gateway Business Department &Gateway Business Department &

Multimedia LaboratoriesMultimedia Laboratories

Presentation Material as of 　 March, 2000

What is i-mode ?What is i-mode ?

• Mobile ISP and portal service from NTT DoCoMo, JapanMobile ISP and portal service from NTT DoCoMo, Japan• Very light weight i-mode phone set with cellular phone & InteVery light weight i-mode phone set with cellular phone & Inte

rnet capabilityrnet capability 　　 (71g/2.5Oz)(71g/2.5Oz)

• Internet service using PDC-P(Personal Digital Cellular-PackeInternet service using PDC-P(Personal Digital Cellular-Packet) t)

• Subset of HTML 3.0 for content descriptionSubset of HTML 3.0 for content description

• Started Operation in Feb. 1999Started Operation in Feb. 1999

• Rapidly growing- 5 million users in ONE YEARRapidly growing- 5 million users in ONE YEAR

• Over 7,500 Information Providers, growing rapidlyOver 7,500 Information Providers, growing rapidly

Outline of PresentationOutline of Presentation

• Internet access from 2G cellular phone networkInternet access from 2G cellular phone network

– Current i-mode serviceCurrent i-mode service

• OverviewOverview

• Technology reviewTechnology review

• Roadmap to 3G cellular phone and InternetRoadmap to 3G cellular phone and Internet

0

1,000,000

2,000,000

3,000,000

4,000,000

5,000,000

2/22

3/8

3/22

4/5

4/19

5/3

5/17

5/31

6/14

6/28

7/12

7/26

8/9

8/23

9/6

9/20

10/4

10/18

11/1

11/15

11/29

12/13

12/27

1/10

1/24

2/7

2/21

3/6

Increase of Subscriber Number of i-modeIncrease of Subscriber Number of i-mode

We have successfully introduced the ”positive feedback” process of the Internet into the wireless world. Increase of applications/contents attracts more user and increase of user number attracts more applications/contents.

LaunchedF501i

P501iD501i, N501i

24,000/w50,000/w～ 70,000/w

4,500/w80,000/w～ 110,000/w

F502i, D502i, N502i, P502i

5,159,184 (3/19)

501i501i502i502i

200,000/w ～ 250,000/w

3131

3742

4493

2655

1,293

5

1,733

58 139252

457

857

0

1,000

2,000

3,000

4,000

5,000

Feb1999

Mar Apr. May J une J uly Aug. Sep. Oct. Nov. Dec. J an.2000

Feb. Mar.

# of Subs（ 000 ）

Aug. 8thExceeded one million users !

NTT DoCoMo Confidential

(Original-2 forcast)

i-mode Subscriber Growth Projectioni-mode Subscriber Growth Projection

(Original forecast)3,000

4,000

Oct. 18thExceeded two million users !

Dec. 23rdExceeded three million users !

Feb. 12thExceeded four million users !

Mar. 15thExceeded five million users

Strategy: The Mobile ISP and PortalStrategy: The Mobile ISP and Portal

ISPPrivate-LAN

Personal PC-User3-4million

InternetDoCoMoGatewayServer

InformationProvider

InformationProvider

When you focus on the number of Internet users for private use, it is far from ’critical mass’ for major IP in Japan. However, if you can count on all cellular phone users of DoCoMo, IP can easily reach economies of scale for its own service.

Internet UserAround 17 million

Source: Telecommunications Carriers Association, Dec 99, Japanese Government

DoCoMo Cellular Phone User

28 million

Cellular Phone User 48 million

Japanese Population: 125 million

Japanese Market

DoCoMo “DoCoMo “i-i-mode”mode”DoCoMo “DoCoMo “i-i-mode”mode”(PDC-P)

Portal Service Based on User Profile DB

Information Bill Collection System

We offer a portal homepage customized by user profile so that users can easily access Information Providers’ web sites.

Service OverviewService Overview

Cellular-phone Network

Voice(PDC)

mail(incl.

e-mail)

Transaction・ Banking ・ Security Trading・ Ticket Reservation・ Airline Information/Reservation・ Credit Card Information・ Book Sales etc.

Data base・ Telephone Directory Search (Yellowpage)・ Restaurant Guide・ Dictionary Service・ Cooking Recipe etc.

Information・ News Updates ・ Weather Information・ Sports News ・ Stock Quotes・ Business/Technology News ・ Town Information ・ Horse Racing Information etc.

Entertainment ・ Network Game ・ Character Download・ Horoscope/Fortune telling・ Karaoke Information/ Song Check・ FM Radio Information・ Club Event Information etc.

Intern

et Web

Sites

Technical ObjectiveTechnical Objective

• To provide personal Internet Web and mail service on digital cTo provide personal Internet Web and mail service on digital cellular phone network - PDC (Personal Digital Cellular)ellular phone network - PDC (Personal Digital Cellular)

• Packet mode to enable charges only on the amount of dPacket mode to enable charges only on the amount of data transferred- (PDC-P)ata transferred- (PDC-P)

• Mail: Push mail delivery to make the phone more attracMail: Push mail delivery to make the phone more attractivetive

• Web: Subset of HTML to lower the entry barrier for conWeb: Subset of HTML to lower the entry barrier for content providers by enabling them to use existing tools and tent providers by enabling them to use existing tools and contentscontents

• IP Technology to enable i-modeIP Technology to enable i-mode

• HTTP, SMTP, TCP/IP, ...HTTP, SMTP, TCP/IP, ...

i-mode uses PDC Packeti-mode uses PDC Packet

• Packet based charges (PDC-P) perfect for Web browsingPacket based charges (PDC-P) perfect for Web browsing– PDC-P network enables less expensive charges for text based data exchange. PDC-P network enables less expensive charges for text based data exchange.

– Mobile phone is always ‘stand by’ to get/receive data.Mobile phone is always ‘stand by’ to get/receive data.

DoCoMo’sDoCoMo’sNetwork Network

(PDC)(PDC)

IPIP

DoCoMo’sDoCoMo’sPacketPacket

Network Network (PDC-P)(PDC-P)IPIP

InformationInformation providerprovider

Internet

I-mode Servers

BillingDB

UserDB

Voice, Data via Modem

Packet Data

HTTP

PDC: Personal Digital Cellular

Current Architecture of “i-mode”Current Architecture of “i-mode”

HTML(subset)

HTTP(HTTPS)

T Ｌ

Phy. Layer

Link Layer

IP

HTML(subset)

Cellular Phone PPM(Packet Processing Module)

M-PGW(M-Packet Gateway Module) Information Provider

　 HTTP(HTTPS)

IP (PMAP) IP (PMAP)

TCP

IP

“HTML”, “HTTP” Layer Pass-through

TCPTL

Radio

Link Layer Link Layer

Phy. LayerPhy. Layer

Corporate Network Internet

Call ctl Call ctl

LAPD-MLAPD-M

Phy. LayerPhy. Layer

Link Layer

Phy. Layer

Off the shelf Web server

Current i-mode protocol stackCurrent i-mode protocol stack -radio portion -radio portion

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Layer Error Rate System Data RateLayer Error Rate System Data Rate------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------　　 AP E free HTTPAP E free HTTP------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ TL Mostly E free Stop-Go ARQ/Push/Connection oriented 9.6Kbps 1400B/pkt TL Mostly E free Stop-Go ARQ/Push/Connection oriented 9.6Kbps 1400B/pkt ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Link Layer 10Link Layer 10-6-6 or better LAPD-M’ Selective Repeat ARQ 14kbps(3ch TDMA) or better LAPD-M’ Selective Repeat ARQ 14kbps(3ch TDMA)------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Phy. Layer 10Phy. Layer 10-2-2-10-10-4 -4 /4 shifted QPSK FEC/BCH 42kbps/4 shifted QPSK FEC/BCH 42kbps------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

LAPD-M’ and TL are standard of ARIB: RCR STD27XLAPD-M’ and TL are standard of ARIB: RCR STD27XARIB(Association of Radio Industries and Business) ARIB(Association of Radio Industries and Business)

WWW.ARIB.OR.JPWWW.ARIB.OR.JP

• Web page :Web page :

TotalTotal size size 5Kbyte(max), 5Kbyte(max), 2KByte(recommended)2KByte(recommended)

GIF pictureGIF picture 94x72 pixel 94x72 pixel

Trans. HTTPTrans. HTTP

• Mail message :Mail message :

TotalTotal size size 500 bytes (250 Japanese 500 bytes (250 Japanese characters)characters)

Trans. Trans. TL Push TL Push

• Bandwidth: Bandwidth: 9,600 bit/sec 9,600 bit/sec

• Frequency: Frequency: 800MHz 800MHz

i-mode specificationsi-mode specifications

HTML Based Content DescriptionHTML Based Content Description

Subset of HTML 3.0 with some additional tags*Subset of HTML 3.0 with some additional tags*– No need to learn special language to deliver contentNo need to learn special language to deliver content

　 RegistrationDay of BirthYear < >Month < >Day < 　 　 >1.SEND

<HTML><HEAD><TITLE>Registration</TITLE></HEAD><BODY ><DIV>Registration</DIV>Day of Birth<br><Form Action=“mailto:”Method=“POST”>Year<INPUT TYPE = “TEXT” NAME =“TEXT” VALUE =“”SIZE = “2” MAXLENGTH = “2” ALIGN = TOP><br>Month<INPUT TYPE = “TEXT” NAME =“TEXT” VALUE =“”SIZE = “2” MAXLENGTH = “2” ALIGN = TOP><br>Day<INPUT TYPE = “TEXT” NAME =“TEXT” VALUE =“”SIZE = “2” MAXLENGTH = “2” ALIGN = TOP><br><INPUT TYPE = “SUBMIT” NAME =“Submit” VALUE = “1.SEND” ALIGN = TOP></BODY></HTML>

© Mainichi Shimbun

* “Phone To” tag added

Portal Link

Web access

IntranetIntranet Packages

Java

Feb. 1999 Fall,1999

Fall,2000

Spring, 2001

i-modelaunch

i-mode Roadmap to 3Gi-mode Roadmap to 3G

Success of i-mode will lead to smooth introduction of IMT-2000 which enables 64k-384k bps high speed access from mobile devices. Even before 3G, we are making extensive efforts for enhancing i-mode platform by introducing Intranet package solutions in 1999 and,

then, Java technology in 2000.

・ Homepage

・ e-mail

・ Video

・Music

・ Mobile TV・ Interactive TV

・ TV Telephone

・ TV Conference・ Game

・ Security function

Rich (Visual, High Speed)

Colored LCD

NOW

・ Groupware

3rd Generation

i-mode Evolution 2; Java Capable i-mode Phonei-mode Evolution 2; Java Capable i-mode Phone

Java will enable Java will enable

• application/content providers to distributapplication/content providers to distribute software (applets) to cellular phones.e software (applets) to cellular phones.

• Users to download applets including interUsers to download applets including interactive games, to manage servers, security active games, to manage servers, security enhancing module and so on. enhancing module and so on.

To be introduced in late 2000.To be introduced in late 2000.

i-mode phone with KVM(KJava) runs 3D maze game.

3G to use W-CDMA3G to use W-CDMA

Wideband CDMA will Wideband CDMA will •Enable up to 384Kbps speed Enable up to 384Kbps speed •Provide richer content for i-mode; video, audio, etc.Provide richer content for i-mode; video, audio, etc.

Further convergence to Internet standardsFurther convergence to Internet standards

ConclusionConclusion

Strategies Strategies Leverage widely accepted technology and advance the technoloLeverage widely accepted technology and advance the technolo

gy gy Subset of HTML for content descriptionSubset of HTML for content descriptionLeverage IP based architectureLeverage IP based architecture

Initial focus on personalized services and usageInitial focus on personalized services and usage 　　Packet based charges with PDC-P favour for Web browsing applPacket based charges with PDC-P favour for Web browsing appl

icationsications

3G direction3G directionFurther convergence to IETF Internet standardFurther convergence to IETF Internet standardOpen discussions in IETF Open discussions in IETF 　　　　

Thank you!Thank you!

Max HATAMax HATA

Multimedia Labs,Multimedia Labs,

NTT Mobile Communications Network, IncNTT Mobile Communications Network, Inc

(NTT DoCoMo)(NTT DoCoMo)

hata@mml.yrp.nttdocomo.co.jphata@mml.yrp.nttdocomo.co.jp

Hiroshi INAMUAHiroshi INAMUA

Multimedia Labs,Multimedia Labs,

NTT Mobile Communications Network, IncNTT Mobile Communications Network, Inc

(NTT DoCoMo)(NTT DoCoMo)

inamura@mml.yrp.nttdocomo.co.jpinamura@mml.yrp.nttdocomo.co.jp

Contact-1Contact-1

Ichiro OKAJIMAIchiro OKAJIMA

Wireless Labs,Wireless Labs,

NTT Mobile Communications Network, IncNTT Mobile Communications Network, Inc

(NTT DoCoMo)(NTT DoCoMo)

okajima@mlab.yrp.nttdocomo.co.jpokajima@mlab.yrp.nttdocomo.co.jp

Takeshi NATSUNOTakeshi NATSUNO

Media Director, Gateway Business DepartmentMedia Director, Gateway Business Department

NTT Mobile Communications Network, IncNTT Mobile Communications Network, Inc

(NTT DoCoMo)(NTT DoCoMo)

natsuno@nttdocomo.co.jpnatsuno@nttdocomo.co.jp

David MACDONALDDavid MACDONALD

Project Coordinator, Gateway Business DepartmentProject Coordinator, Gateway Business Department

NTT Mobile Communications Network, IncNTT Mobile Communications Network, Inc

(NTT DoCoMo)(NTT DoCoMo)

macdonald@nttdocomo.co.jpmacdonald@nttdocomo.co.jp

Contact-2Contact-2