©koichi asatani next generation networks -dream or reality- koichi asatani kogakuin university,...

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©Koichi Asatani Next Generation Networks Next Generation Networks -Dream or Reality- -Dream or Reality- Koichi Asatani Koichi Asatani Kogakuin University, Tokyo Kogakuin University, Tokyo APNOMS, Keynote APNOMS, Keynote Sapporo, Japan, October 10, 2007 Sapporo, Japan, October 10, 2007

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Page 1: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Next Generation NetworksNext Generation Networks-Dream or Reality--Dream or Reality-

Koichi AsataniKoichi AsataniKogakuin University, TokyoKogakuin University, Tokyo

APNOMS, Keynote APNOMS, Keynote Sapporo, Japan, October 10, 2007Sapporo, Japan, October 10, 2007

Page 2: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Broadband Penetration in JapanBroadband Penetration in Japan

Page 3: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

IP Telephony Subscriber Number in JapanIP Telephony Subscriber Number in JapanX 104

0

200

800

600

400

1000

1200

2006.32004.122004.92004.62004.32003.12 2005.6 2005.9 2005.122005.3

0AB-J050-

Page 4: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

S1

0

50

100

150

200

250

1985

200520

00199519

90

Global International Call GrowthGlobal International Call Growth

source: http://www.dri.co.jp/auto/report/telegeo/telegeotg04.htm

Total Traffic (PSTN+VoIP)

VoIP

Note: Forecasted Data for 2003 and after

Billion Minutes

Page 5: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Evolutions in Networks and ApplicationsEvolutions in Networks and Applications

NGI

Internet

ARPA

B-ISDN

ISDN

Digital TelephoneNetwork

Analog TelephoneNetwork

ADSL

FTTH

FWA

nGWL

NGNNGN  

Burst, StreamingUnicast, Multicast

Voice   sound   Video   Mutlimedia

FR

ATM

P2P

Network EvolutionTelecomApplications

InternetApplications

SDHInternet access

Datacommunications

Telephone

FAX

WWW

ftp telnet e-mail

BroadbandStreaming

IP Telephony

Packet SwitchedNetwork

Page 6: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Principles and ConvergencePrinciples and Convergence

TelecomismTelecomism InternetismInternetism

End-to-End PrincipleEnd nodes are responsible.

End-to-End PrincipleEnd nodes are responsible.

Network PrincipleNetwork is responsible.

Network PrincipleNetwork is responsible.

Stateless networksStateful networks

Trustful networks Trustful end usersTerminal

liberalization

Non-transparent network Transparent networkISDN

PROXY,NAT,Firewall

Best effort networksQoS guaranteed networksADSL

flow control, RSVPMPLS DiffServe

Page 7: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Definition & Features of NGNDefinition & Features of NGN

Source:ITU-T Rec.Y.2001

Generalized Mobility FMC

Unrestricted Access Open Access I/F

Service Separated Transport Architecture & Open API

QoS-enabled Transport

Multiple-Broadband

Manageable Broadband

Secure NW & Services Authentification

Page 8: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Next Generation NetworksNext Generation Networks

NGN Transport Functions

NGN Service-Related Functions

Telephone Services

Data Services (WWW, e-mail, etc.)

Video Services (TV, movies, etc.)

Scope of the

Internet

“Service Stratum”

“Transport Stratum”

Source: ITU-T Rec. Y.2011 General principles and general reference model for next generation networks

Anything and Everything

Everything

(Any and All Network Technologies)

(Any/All Applicationse.g., voice, data, video)

Internet Protocol

(IP)

Page 9: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN Release 3  -RFID

NGN Release 2 -Entertainment -Home Networks

NGN Release 1-Multimedia-PSTN/ISDNEmulations

Services and Capabilities

Enhancement to Release 1Capabilities

Enhencementto Release 2Capabilities

Mid of 2007? End of 2008

-Multimedia-PSTN/ISDNEmulations

- Streamingservices

- Ubiquitous services

Release Approach for NGNRelease Approach for NGN

Target TimingSep of 2007

Mid of 2006

Page 10: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Transport and service configuration of the NGNTransport and service configuration of the NGN

LegacyTerminals

Note: Gateway (GW) may exist in either Transport Stratum or End-User Functions.

*

LegacyTerminals

Transport Stratum

Service Stratum

End-UserFunctions

Application Functions

Core transport Functions

NGNTerminals

CustomerNetworks

Other N

etworks

Application Support Functions and Service Support Functions

Core TransportFunctions

Other N

etworks

Transport Stratum

EdgeFunctions

Access Transport Functions

ServiceControl

Functions

Network AccessAttachment Functions

NAAF

Network Attachment Control Functions

(NACF)

Access NetworkFunctions

Resource and AdmissionControl Functions

(RACF)

UserProfile

Functions

T. UserProfileFunctions

GWGW

Other Multimedia ServiceComponents …

Streaming ServiceComponent

PSTN / ISDN EmulationService Component

IP Multimedia Component&PSTN/ISDN Simulation

IP MultimediaService Component

S. UserProfile

Functions

GWGW

Applications

LegacyTerminals

Note: Gateway (GW) may exist in either Transport Stratum or End-User Functions.

*

LegacyTerminals

Transport Stratum

Service Stratum

End-UserFunctions

Application Functions

Core transport Functions

NGNTerminals

CustomerNetworks

Other N

etworks

Application Support Functions and Service Support Functions

Core TransportFunctions

Other N

etworks

Transport Stratum

EdgeFunctions

Access Transport Functions

Access Transport Functions

ServiceControl

Functions

Network AccessAttachment Functions

NAAF

Network Attachment Control Functions

(NACF)

Access NetworkFunctions

Resource and AdmissionControl Functions

(RACF)

UserProfile

Functions

T. UserProfileFunctions

UserProfile

Functions

T. UserProfileFunctions

GWGWGWGW

Other Multimedia ServiceComponents …

Streaming ServiceComponent

PSTN / ISDN EmulationService Component

IP Multimedia Component&PSTN/ISDN Simulation

IP MultimediaService Component

S. UserProfile

Functions

GWGWGWGW

Applications

Source: ITU-T Rec.Y.NGN-FRA Figure 8

Page 11: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Complexity of NGN QoSComplexity of NGN QoS

• User-perceived QoS is end-to-end (cf. User-perceived QoS is end-to-end (cf. ITU-T Rec. ITU-T Rec. E.800)E.800)• NGN QoS is complex becauseNGN QoS is complex because

– NGN applications have diverse performance needsNGN applications have diverse performance needs– IP is not designed for consistent application performanceIP is not designed for consistent application performance

• Various mechanisms have been introduced with specific applicability Various mechanisms have been introduced with specific applicability – Diversity in an end-to-end path is common owing toDiversity in an end-to-end path is common owing to

• Different levels of QoS support in endpointsDifferent levels of QoS support in endpoints• Varying types of QoS support in the transportVarying types of QoS support in the transport• Multiple provider domainsMultiple provider domains

Multi-Service Packet Transport

802.xxAccess

2G/3GWireless

Cable

xDSL

Domain 1IntServ

Domain 4Over-Prov

Domain 2DiffServ

Domain 3MPLS-TE

N G N

Effective management of resource contention

Page 12: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

ITU-T RACF ArchitectureITU-T RACF Architecture

Rs

Rw

Service Stratum

Transport Functions

PolicyDecisionFunction

PolicyDecisionFunction

Transport Resource ControlFunction

Transport Resource ControlFunction RACF

Transport Stratum

Service Control Functions(part of IMS or else)(part of IMS or else)

Service Control Functions(part of IMS or else)(part of IMS or else)

Rt

RdRp

Rc

Rn

Ru

Oth

er NG

Ns

Ri

TransportEnforcement

Function

TransportEnforcement

Function

Interconnection Functions PolicyEnforcement

Function

PolicyEnforcement

Function

Network Attachment Control Functions

• Policy Decision Functionservice facing, transport independent

• Transport Resource Control Functionservice independent, transport dependent, possibly network-segment specific

• Policy Enforcement Functiontypically part of border transport elements

intra-intra-domaindomain

inter-inter-domaindomain

RACF augments native transport QoS support Preempting transport congestion at the

service control layer

All applications (VoIP, IPTV, etc.) involving network-based control can make use of RACF via Rs

Page 13: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

IP-based network performanceIP-based network performance

U

U

U

U

Class 5

1*10-6

1*10-5

50 ms

100 ms

Class 6

1*10-61*10-4 Upper bound IPER

1*10-51*10-31*10-31*10-31*10-31*10-3 Upper bound on the packet loss

probability IPLR

50 msUUU50 ms50 ms

Upper bound on the 1-10-3 quantile

of IPTD minus the minimum

IPTD

IPDV

400 ms1 s400 ms100 ms400 ms 100 ms Upper bound on the mean IPTD

IPTD

Class 7Class 4 Class 3 Class 2 Class 1 Class 0

Nature of Network

Performance Objective

Performance Parameter

Source: ITU-T Rec. Y.1541

Page 14: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN-related Standardization OrganizationsNGN-related Standardization Organizations

USA

Europe

ATISATISTTC (Japan)TTC (Japan)

TTA (Korea)TTA (Korea)

CCSA (China)CCSA (China)

IETFIETF

ETSIETSI

ITUNGN-GSI

ITUNGN-GSI

AsiaTISPANTISPAN 3GPP3GPP

CJK

Page 15: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Next Generation IP Network Promotion ForumNext Generation IP Network Promotion Forum

• Established on Dec. 16, 2005

• Based on a report from MIC Study Group on Next Generation IP Infrastructure

• To Promote evolution to IP-based Networks in Japan

• Under close cooperation among industries, government and academia

Page 16: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Page 17: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Forum StructureForum Structure

Next Generation IP Network Promotion Forum

Chair: Prof. Tadao Saito (University of Tokyo)

Technology GroupChair: Prof. Shigeki Goto

(Waseda University)

R&D and Standardization GroupChair: Prof. Koichi Asatani

(Kogakuin University)

Planning and Promotion GroupChair: Dr. Yuichi Matsushima (NICT)

Strategic Planning WG

Home Networks WG

Page 18: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Technical Challenges!Technical Challenges!

• Latency aware network configuration Implementation: not a subject of standards

• Ubiquitous applications? – Transaction or (SIP) Connection?

• QoE/QoS on End-to-End base,

including Customer Premises Network, e.g., Home Networks– No performance allocations to devices outside of

UNI– Multi-domain environments

Page 19: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NTT’sNTT’s    NGNNGN    Field TrialField Trial

• Objective: – Technical Feasibility,– Users’ Demands Survey

• Sites: Tokyo and Osaka

• Period: From Dec. 2006 through Dec.2007

• Steps: – Dec. 2006: NTT7s show rooms– Jan. 2007: NTT's employees– Apr. 2007: Residential users in the areas

Page 20: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NTT’sNTT’s    NGNNGN    Field Trial ServicesField Trial Services

• Internet Access

• Telephony– Video Telephony– IP Telephony– Hi-Quality IP Telephony

• Video Distribution– Hi-Definition Video Distribution (TV Terminal)– Hi-Definition Video Distribution (PC terminal)– Terrestrial Digital TV IP Redistribution

Page 21: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN as RealityNGN as Reality

• The NGN concept takes into consideration new realities in the telecommunication industry characterised by factors such as: the need to converge and optimise the operating networks and the extraordinary expansion of digital traffic (i.e., increasing demand for new multimedia services, increasing demand for mobility, etc.).

http://www.itu.int/ITU-T/ngn/introduction.html#Why%20NGN?

Page 22: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN as DreamsNGN as Dreams

• New and Killer applications?

Page 23: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Technology ConvergenceTechnology Convergence

Internet

TVBroadcast

Telecomnetwork

Internet

Telecomnetwork

TVBroadcast

Mobility/Nomadicity

Page 24: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN Maximum ScenarioNGN Maximum Scenario

Internet

TVBroadcast

Telecomnetwork

Internet

Telecomnetwork

TVBroadcast

Mobility/Nomadicity

NGNmaximum scenario

Page 25: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

NGN Minimum ScenarioNGN Minimum Scenario

Internet

TVBroadcast

Telecomnetwork

Internet

Telecomnetwork

TVBroadcast

Mobility/Nomadicity

NGNminimum scenario

Page 26: ©Koichi Asatani Next Generation Networks -Dream or Reality- Koichi Asatani Kogakuin University, Tokyo APNOMS, Keynote Sapporo, Japan, October 10, 2007

©Koichi Asatani

Thank You!Thank You!