Transcript TSACC Test Area

GSC9/GTSC-010
SOURCE:
TTA
TITLE:
NGN for Global Generation (Architecture and Protocol)
AGENDA ITEM:
5.1
CONTACT:
Chae-Sub, LEE, +8216 93200270, [email protected]
DOCUMENT FOR:
Decision
Discussion
X
Information
NGN related Standardization Issues
(Architecture and Protocol)
Chae-Sub, LEE
TTA
2016-03-28
GSC-9, Seoul
1
Contents
1.
2.
3.
4.
5.
Definition and Objective of NGN
Features of NGN
Architectural views of NGN
Protocol views of NGN
Discussion
GSC-9, Seoul
1. Definition and Objective of NGN
A Next Generation Network (NGN) is a packet-based network able to provide
services including 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.
Objective
• To promote fair competition;
• To encourage private investment;
• To define a framework for architecture and capabilities to be
able to meet various regulatory requirements;
• To provide open access to networks,
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2. Features of NGN
• Packet-based transfer
• Separation of control functions among bearer capabilities, call/session,
and application/ service
• Decoupling of service provision from network, and provision of open interfaces
• Support for a wide range of services, applications and mechanisms based on
service building blocks (incl. real time/ streaming/ non-real time services & MM)
• Broadband capabilities with end-to-end QoS and transparency
• Interworking with legacy networks via open interfaces
• Generalized mobility
• Unrestricted access by users to different service providers
• A variety of identification schemes which can be resolved to IP addresses
for the purposes of routing in IP networks
• Unified service characteristics for the same service as perceived by the user
• Converged services between Fixed/Mobile
• Independence of service-related functions from underlying transport technologies
• Compliant with all Regulatory requirements, for example concerning
emergency communications and security/privacy, etc.
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3. Architectural views of NGN
Break of Vertical Integrated Architecture
Pre-NGN
Effect of IP into NGN Architecture
Video
Services
(TV, movie, etc)
Services
Video
Services
Network
(Any/All Applications
e.g. voice , data , video)
Data
Services
(WWW,
e-mail, etc)
Telephone
Services
Network
Data
Services
Network
Anything & Everything
Policy Area 1
Internet Protocol
(IP)
Transport
Telephone
Services
Scope
Of
“Internet”
Policy Area 2
Policy Area 3
Horizontal Binding Architecture
Everything
Video Services (TV, movie, etc)
Data Services (WWW, e-mail, etc)
(Any & All Network technologies)
Telephone Services
Two Policy Domains
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Content
&
Services
Policy
Area
Transport
Policy
Area
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Services
Point to point, Point to multipoint, Multipoint to multipoint
Transport
Point to point, Point to multipoint, Multipoint to multipoint
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Separation of Services from Network
Application
Server
Users
Switched
Access
Network(s)
Transport
Protocol
Interworking
Application
Server
Switched
Core
Packet
Network(s)
Single point
Or
Distributed
Application
Switched
Access
Network(s)
Transport
Protocol
Interworking
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Users
Re-Distribution of Service Intelligence : QoS, User Convenience etc.
QoS aware
Migration of
Service Intelligence
User Access
Domain Domain
Core
Domain
Service Provision
Access
Domain
User
Domain
Edge
Service
Node
Fix/Mob.
Acc. Net.
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QoS aware
core
Best Effort
Core
Edge
Service
Node
Fix./Mob.
Acc. Net.
Impacts and Effects of NGN on Service Provision
• The separation facilitates the unbundling of services and facilities
(in both access and core).
• Each vertical stratum of NGN has its own horizontal architecture.
• The location of service platforms is not restricted.
• Telecom industry will bifurcate to reflect the new NGN architecture.
• NGN architecture will facilitate competition and innovation among
service providers.
• Service intelligence will migrate to the edges.
• Telephone service will not follow the traditional centrex, local or
long distance approaches.
• Policy frameworks designed for vertically-integrated networks
are not transferable to a horizontally-integrated NGN.
• In an NGN, two separate policy frameworks are required:
- one applicable to transport networks, and
- another applicable to content-based services
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4. Protocol views of NGN
Principles of Protocol Relationship
Service Mapping
&
Protocol Translation
Protocol A
Protocol X
Service Mapping
&
Adaptation
Peering Relationship
Layering Relationship
Protocol B
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Simplified Protocol Model of NGN
Current protocol standards activity mainly focus on two aspects
- one is how to use IP layer economically
- the other is how to support IP layer efficiently
Non-IP
Services
Applications
Application Helpers (UDP, TCP, RTP, etc)
IP
MPLS or shim
(Optional)
Optical Bit Transport
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Ethernet
LAN
or
MAN
Broadband Protocol Model of Today
SNMP
TFTP
DHCP
Security
Management
PPPoA
IP/Eth
UDP
PPPoE IP/AAL5
L2TPoA
IP
PPP
IP & ICMP
ARP
LLC/DIX
PPP
PPPoA
Link
security
Ethernet
PPPoE
PPP
Ethernet
L2TP
LLC or VC Mux
AAL5
MAC
ATM
Transmission
Convergence
(downstream only)
DSL
Physical Media
Cable Systems Protocol Model
DSL Systems Protocol Model
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One of possible Fixed-Mobile Broadband Protocol Standards
• Variable diversity in usage of Physical Medium
• Convergence always request at the entrance of Networks and Services
• End-End Protocol could be globalize
IP
Convergence
ATM
Convergence
Ethernet
Convergence
MAC
Privacy
Transmission Convergence
802.16 Physical Layer
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5. Discussion
Key Mission of NGN
• Provide QoS aware services to End-End (any-where, any-time, any-device)
• Provide Convergence : Fixed-Mobile, Telecom-Broadcasting etc.
• Happy Business Model for Everyone : Balance btw. Growth and Share
Questions after NGN
• Still Free charge / Fixed Rate / Free Riding…?
• Still everybody use same quality services ?
• Still I am only belong to public or I get my own private ?
• Still separated subscription for Fixed and Mobile services ?
• Still use separated Terminals for Fixed and Mobile ?
• Still access separated contents for Fixed and Mobile ?
• Still dominant operator control most of ?
Ways to protect further difficulties
• Need Global Standard Collaboration
• Common Vision, Common Requirements, Common Business Model
Common Architecture and Common Protocols are basic to start
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Principles for further development of Architecture and Protocols
Principle 1
The variation between protocol stacks should be reduced to a minimum.
Principle 2
The commonality between protocol stacks should be maximized.
Principle 3
Tunneling should be used “interwork” non-compatible network segments.
Principle 4
The protocol stack should be consistent with independent provision of any of peering points
at any layer in the protocol stack.
Principle 5
The protocol stack should facilitate the provision of value-added services.
Principle 6
The protocol stack should facilitate access security.
Principle 7
The protocol stack should facilitate QoS provision (involving quantifiable and measurable
levels of service).
Principle 8
The protocol stack should provide flexibility for mixing and matching different underlying
physical media.
GSC-9, Seoul