Post on 27-Mar-2020
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NGN Focus Group
Inje University , School of computer engineeringChulSoo KimAugust. xy. 2005
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1. Why do we need NGN? 2. NGN architecture3. FGNGN4. Case features5. Future issues6. Conclusions
Contents
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Today Tomorrow
Telephonenetwork
Mobile radionetwork
IP-Network
Multimedia Access - Advantages• easy to handle• reliable• mobile
Internet
1. Why do we need NGN?
One network for everything
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1. Why do we need NGN? (Cont)
• Short Term objective:Create New Revenue possibilities– Removal of boundaries between voice and data opens the way to new
kind of services– Can be realized relatively quickly with limited investments
• Long Term objective:Realize Cost Savings– Simpler network – More efficient network– Cheaper network components– Full benefit only realized when all separate networks have fully migrated
towards the target solution
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Driven byCost Reduction
PossibilitiesDriven by
Revenue IncreasePossibilities
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Packet Network
WAN UTRAN
Mobile PSTN
COCableDSL
Broadband
WLLAccess
Edge
Core
Control
Applications
Management
Content MediaGateway
Management system
ResidentialUsers
Remote Office/SOHOEnterprise Customers MobileUsers
Softswitches
Application Servers
2. NGN architecture
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2. NGN architecture (Cntd)
• A public packet-based communications network with the following characteristics:– layered architecture
• Layers can evolve independently– open interfaces between the layers and all other networks
• Best in class for each layer– seamless control of multiple transport technologies
• Cost savings due to focused CAPEX and reduced OPEX– Centralized intelligence
• Fast and efficient introduction of new services– Gateway interconnection far simpler than Exchange interconnection
• New services — new revenues
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• Functional & Nomadicity Architecture (base on IMS & non-IMS)• QoS (include the xDSL Access)• Security Capability (inc. Authentication)• NGN Control and Signaling Capability• Evolution from CGN to NGN
NGN Focus Group• ITU-T Director launched NGN Focus Group at June 2004• Almost every two month meeting : 6, 7, 9, 11/2004 and 2, 4, 6/2005
Future Packet Network requirementsFPBN (Future Packet-based Network)
WG7
Evolution of Networks to NGN, PSTN evolution to NGNEvol (Evolution)WG 6
NGN Security FrameworkSeC (Security Capability)WG 5
TRQ.IP QoS.SIG.CS1CSC (Control & Signalling)WG 4
TR-123.qos, TR-msnniqos, TR-NGN.qos, TR-NGN.NHNperf, TR-e2eqos.1, TR-enet, TR-atmipa, TR-racs, TR-ipaqos
QoS (Quality of Services)WG 3
Req. and Architecture, Functional Req. for NGN Mobility, Functional Req. for Soft Router
FAM (Functional Architecture, and Mobility)
WG 2
NGN Scope, Releases 1 / General Requirements, Servie and Capability, Mobility Services and Capabilities
SR (Service Requirements)WG 1
DeliverablesAreaWG
3. NGN Standardization
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9 D2TBDFGNGN-OD-00044Customer Manageable IP Network2
D2TBDFGNGN-OD-00043Functional Requirement for Soft Router
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D11Q05FGNGN-OD-00042Functional Requirements for NGN Mobility
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D11Q05FGNGN-OD-00035Requirements & Architecture for NGN2D
PRI2Q05TBDNGN general services and capabilities (release independent)
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PRI2Q05TBDNGN general requirements (release-independent requirements)
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D12Q05FGNGN-OD-00036NGN Release 1 general requirements 1P11Q05TBDMobility Services & Capabilities1D11Q05FGNGN-OD-00038Services & Capabilities1D11Q05FGNGN-OD-00037NGN Scope1
StatusReleaseTargetDate
Current DraftTitleWG
NGN Focus Group
Deliverables on Service Requirements and Architecture
3. NGN Standardization
10 D1May ‘05FGNGN-OD-00024
Performance measurement and management for NGN (TR-pmm)
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D1July ‘05FGNGN-OD-00033
A QoS Framework for IP-based access networks (TR-ipaqos)
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D1July ‘05FGNGN-OD-00031
Resource and admission control sub-system (TR-racs)
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P1July ‘05TBDA QoS control architecture for ATM-based IP access networks (TR-atmipa)
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D1July ‘05FGNGN-OD-00026
A QoS architecture for Ethernet networks (TR-enet)
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D1July ‘05FGNGN-OD-00032
Requirements and framework for end-to-end QoS in NGN (TR-e2eqos.1)
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DRIFeb. ‘05FGNGN-OD-00025
Network performance of non-homogeneous networks in NGN (TR-NGN.NHNperf.).
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DRIFeb. ‘05FGNGN-OD-00045
General aspects of QoS and network performance in NGN (TR-NGN.QoS)
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D1Feb. ‘05FGNGN-OD-00027
Multi Service Provider NNI for IP QoS (TR-msnniqos)
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D1Feb. ’05FGNGN-OD-00010
A QoS control architecture for Ethernet-based IP access networks (TR-123.qos)
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NGN Focus Group3. NGN Standardization
Deliverables on Quality of Services
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PTBD3Q05TBDCandidate Technologies7PTBD3Q05TBDHigh Level Architecture7DTBD2Q05FGNGN-OD-00029Requirements7DTBD4Q04FGNGN-OD-00028Problem Statement7
D11Q05FGNGN-OD-00040PSTN Evolution to NGN6
D11Q05FGNGN-OD-00039Evolution of Networks to NGN
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DTBDTBDFGNGN-OD-00034NGN Security Framework5
DTBDTBDFGNGN-OD-00030TRQ.IP QoS.SIG.CS14
NGN Focus Group3. NGN Standardization
Deliverables on Signaling, Security, Migration and Future
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A NGN is a packet-based network able to provide telecommunication services and able to make use of multiple broadband,
QoS-enabled transport technologies and in which service-related functions are independent from underlying transport-related technologies.
It offers unrestricted access by users to different service providers.It supports generalized mobility which will allow consistent and
ubiquitous provision of services to users.
Definitionof NGN(DraftRec.
Y.2001)
Target Standards Area
Generalized Mobility Convergence btw. Fixed & Mobile
Unrestricted Access Open Access I/F
Separation Services with Transport Architecture and Open API
QoS-enabled Transport
Multiple-BroadbandManageable Broadband
Definition & Features of NGN4. Key Features
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Management
Transport Adaptation
Transport
CDR
Transport Resource / Policy Control Function
TMGF
SGF
Transport Resource &
Enforcement Functions
TrafficMeasurement
Function
PGF
CCF
T. Authentication &Authorization
Function
Mobility Support Function
T.Network Access Control Function
AMGF
TerminalFunction
Access Relay Function
ProxyFunction
Session & C
all Control
ApplicationCDR
CDR
CDR
CDR
CDR
CDR
S.Authentication & Authorization Function
Application Gateway Function
Application Server Function(may include own Authentication, Authorization and Accounting)
Charging Collection Function (CCF)
Media Resource Control Function MGCF?
Session Control Function PGCF
EMS
NMS
Session Control ProxyFunction
All lines of this type attach to the corresponding input line at the CCF within session & call control
Scope of NGN
Netw
ork Border Other NGN
other IP MMNetwork
(e.g. IMS)
PSTN/ISDN
Internet
Connection point
T.Network Access Process Function
Packet Transport Function
MediaResource
ProcessingFunction
T-1
T-3T-20
T-7
T-4
LS FunctionUser Profile DB Function
Registration Function
T-6
T-8
T-9
T-13
T-12
S-14
T-11
T-15
T-16
T-18
S-1
S-4
S-9
S-10
S-11 S-12
S-13
S-17
S-18
A-1
A-2
Functional Architecture Model4. Key Features
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Customer Manageable Capability4. Key Features
Subscriber Management
AAAAAA
Remote Access SwitchRemote Access Switch
MetroSwitchMetroSwitch
NNIxUNIxUNIyUNIz NNIy NNIy
C/M-Plane
U-Plane
AccessGatewayAccess
Gateway
Service Management/Call Center
QoS/SLA Management
Soft SwitchFunctions
Service ControlService Control
FCAPS Management
Routing, Signaling, OAM
Addressing, NamingAddressing, Naming
Signaling, OAMSignaling, OAM
Ingress LERIngress LER
Edge BE RouterEdge BE Router
Edge MCUEdge MCU
L1/L2 NodeL1/L2 Node
Core LSRCore LSR
Core BE RouterCore BE Router
Core Multicast NodeCore Multicast Node
L1/L2 NodeL1/L2 Node
Egress LER/GWEgress LER/GW
Edge BE RouterEdge BE Router
Edge MCU or GWEdge MCU or GW
L1/L2 Node/GWL1/L2 Node/GW
VariousServer
Network
ExistingWireline/WirelessNetwork
PSTN/Cable/TVNetwork
NNIz
Manageable NGN Network
DSLAM/ONUDSLAM/ONU
CustomerPremisesNetwork
CMTSCMTS
• Capabilities to support user manageability on IP network. • Users can allocate, configure, control, and manage
the resources of NGN Network elements
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CNAN ANCPN CPNTE TEUser User
Network Performance for NGN
Quality of Service for NGNQoE QoE
Man-Machine Interface
Man-Machine Interface
Network Interface
Network Interface
General reference configuration for NGN QoS, NP and QoE
End-to-end or network elements capabilities
Between (at) service access points
User subject
Focus on planning, development (design), operations and maintenance
Focus on user-observable effects
Focus on user-expected effects
Connection/Flow element attributeService attributeUser behaviour attribute
Provider orientedUser oriented
Network PerformanceQuality of ServiceQuality of Experience
QoS Aspects of NGN4. Key Features
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Mobility Aspects of NGN4. Key Features
Mobility
ServiceContinuity
ServiceDiscontinuity
SeamlessHandover Handover Roaming Portability
NGN CN
NGN CN
AccessNetwork
AccessNetwork
AccessNetwork
AccessNode
AccessNode
AccessNode
IntermediateNode
IntermediateNode
MobileTerminal
Border(Gateway)
Node
BorderNode
BorderNode
Border(Gateway)
Node
Border(Gateway)
NodeIntermediate
Node
MobileTerminal
MobileTerminal
BorderNode
BorderNode
AccessNode
MobileTerminal
FixedTerminal
(1)
(2)
(3)
(4)
MobileTerminal
(4)
NNI
Intra-AN Mobility
Inter-AN Mobility
Inter-TE Mobility
Inter-TE Mobility
Inter-CN Mobility
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Evolution Aspects of NGN4. Key Features
• 4 Scenarios for PSTN evolution to NGN
PSN
PBX43AN42
AG41 New AG
PBX23AN22
AG21 New AG
TG TG
CS
LE3
UAM31
AN32
PBX33
LE1
UAM11
AN12
PBX13
LE1
UAM11
AN12
PBX13
LE4
UAM41
AN42
PBX43
LE3
UAM31
AN32
PBX33
LE2
UAM21
AN22
PBX23
TETETE
TETETE
SG
UAM11
AN12
PBX13
LE1
UAM31
AN32
PBX33
LE3TE TETE
UAM21
AN22
PBX23
LE2
UAM41
AN42
PBX43
LE4
UAM11
AN12
PBX13
LE1
UAM31
AN32
PBX33
LE3
UAM21
AN22
PBX23
UAM41
AN42
PBX43
LE4
CS
PSN
TG TG
SG SG
LE2
3rd Scenario 4th Scenario
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NGN stands for Next Generation, but targeted for Near GenerationNGN could be value added framework for all players : Users, Operators, Providers and Regulators etc.NGN could be evolved from Current Generation NetworkNGN could be basement for making convergence world(real Telecommunication World)NGN Standards could be Globalize rather than Localize boosting global village and shorten digital divideITU-T could be centre of NGN standards
TDM basedNetwork
Packet basedNetwork
CGNMobileAccess
FixedAccess
Broadcasting Net.
BBX-castingMM
PacketBased
Tele-Broadconv.
Network
Next GN
FixedMobileConv.
BBAccess
QOSMobility
TDM basedNetwork
Packet basedNetwork
Near GN
FixedMobileConv.Access
Broadcasting Net.
Standards for Near Generation, not Next5. Future Issues
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Transport
ServicesTelephone Services
Data Services (WWW, e-mail, etc)Video Services (TV, movie, etc)
NGN - Convergence Model
ACCESS ACCESSCORE
xDSL Optic
Ethernet or others
Future Packets (?)
API
Future Issues of NGN Standardizations
IMS Beyond IMS
NGNRelease 1
NGNRelease 2
NGNRelease 3
Recommendations &Technical Reports
Rec. Y.NGN-FRM
Rec. Y.NGN-CMIP
TR. 123.qosTR. NGN.qos
Rec. Y.NGN-MOB
TR. atmipaTR. enet
TR. e2e.qos.1
FG NGN Standards
• NGN could be infrastructure for Broadband Services/Applications• NGN could be framework for “Convergence” : F↔M T↔B
5. Future Issues
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NGNRelease 3
• Target dates : Realization of NGN• Services and Capabilities (include Network and Control Capability)• Architecture and their components• Specifications for Interfaces, etc.
NGNRelease 2
I/F 1End of 2005 (TBD)
•Services & Capabilities : S&C 1•Functional Arc. & Spec. : FA&S 1•IW and Interconnection : IAI 1•Migration : MIG 1
I/F 2End of 2006 (TBD)
•S&C 2 = S&C 1+ A2•FA&S 2 = FA&S 1 + B2•IAI 2 = IAI 1 + C2•MIG 2 = MIG 1 + D2
(?)
•FPS Based (?)
Development of NGN Releases5. Future Issues
NGN Release 1
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Users Terminals /Appliances
ServiceProviders Program
Providers
NGN Infrastructure
Content-based Delivery Network InfrastructureService Broker InfrastructureInformation Broker Infrastructure
ConvergenceIntegrationMobility (Uniq. ID)
Simplified Realization Model of NGN6. Conclusion
SERVICE
BRK
INF
BROKER
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Thanks for your listenning
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