NGN Access Single Line Multi-Service - PowerPoint PPT Presentation

Loading...

PPT – NGN Access Single Line Multi-Service PowerPoint presentation | free to download - id: 813c7f-YTQ4N



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

NGN Access Single Line Multi-Service

Description:

Title: From the Core to the Edge of the Network the evolution in NGN voice applications Author: Lorenzo Micheletti Last modified by: Yassar Khoury – PowerPoint PPT presentation

Number of Views:53
Avg rating:3.0/5.0
Slides: 37
Provided by: Loren123
Learn more at: http://ituarabic.org
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: NGN Access Single Line Multi-Service


1
NGN AccessSingle Line Multi-Service
ITU-BDT Regional workshop on NGN
Economics Damascus Syria August 18 21 2003
2
Agenda
  • Public Network Evolution
  • Driving forces of network evolution
  • Evolution characteristics
  • Access Network Evolution
  • Broadband Access Network
  • NGN Access Network
  • PSTN replacement
  • Economics and Scale
  • Access Network Migration Local Perspective
  • Implementation Issues (universality and OSP)
  • Potential Solutions

3
Public Network Evolution
4
Telecommunications Operation Drivers
  • A New Telecom Environment Characterized by
  • New Business Models
  • Privatization Liberalization Competition
  • Business Customer oriented
  • Fusion of Economic Sectors
  • Service Convergence (IT Telecommunication)
  • E-World the Internet
  • Integration of Data Voice Video
  • Accelerated Technology Developments
  • Optical Networking
  • Wireless Networking
  • MIPS SW Systems Modularity
  • Powerful users applications CPEs

5
New Business Model
  • A Next Generation Architecture is Developing
  • Multi-Service Demands
  • Customer Driven Service Development
  • Multi-Media Offerings
  • Emergence of Specialized Operator
  • Applications Content Providers
  • Service Providers
  • Network providers
  • Clear Distinct Separation between different
    Layers
  • Limit-less opportunities for service creation,
    empowered by specialized Service Platforms (e.g.
    IN, ISPs, VOD, etc)
  • Transparency in Core Access Network
  • Well defined standardized Interfaces
  • Change in Revenue Streams
  • Data Traffic vs. Voice traffic
  • Developing countries / reductions in
    International voice revenues

Arab region Revenue 13.1 B, 1.6 of world, 99
ITU-T
6
Public network evolution to NGN
  • Network evolution driven by
  • Revenue diversification, More services to users.
  • Economy of Scale, Increasing penetration and
    coverage.
  • Capitalization on existing investment,
    Streamlining operation cost
  • Next Generation Network
  • Higher BW to users
  • Multi-Service support
  • Scalability
  • Future proof network
  • Manageability
  • Voice
  • POTS
  • CD Quality
  • Lifeline
  • Entertainment
  • Video
  • Music
  • Games / Gambling

Commercial
SINGLE LINE MULTI SERVICE (SLMS)
  • Customer Care
  • New service subscription
  • Pay bill on-line
  • Data
  • VPN
  • 128k - 25MB
  • Managed Always-on

Multi-Unit
7
NGN, Emerging Architecture
  • Packet Based Network
  • Multi-service Support Over Single Infrastructure
  • Higher BW to Users BW efficiency
  • Service Independence of Network Technology
  • Opportunities for service creation and
    development
  • Network Transparent Services Delivery
  • Standardized Interfaces
  • Distinct Separation between different Layers
  • Greater Emphasis on Management
  • Change in Traffic Streams
  • Data Networks Carrying Voice traffic (data
    limitations congestion in voice nets)
  • Service based charges profit distribution/Altern
    ative Revenues to Voice

Packetised Optical Core
8
Structural Separation
9
Access Network The New Model
  • The Access Network Sets the Pace of Network
    Evolution
  • Focal Point for Increasing Tele-density, and no.
    of Customers
  • High BW to Users
  • Multi-Service Support Evolution to Packet Based
    Network
  • Multi- Providers Support Access Port Whole Sale
  • Short Time To Market
  • Competition Regulatory Unbundling Pressure
  • Change Sensitive Cost Sensitive
  • Vast Geographical Coverage
  • Large Investment Cost, Very Large Number of Node
    Interfaces
  • Highly Sensitive to Operation Cost
  • Minimize Change in Established Work Procedures
  • Least Penetrated by Management Systems
  • Low Skilled Work Force
  • Access Agnostic Future Proof Architecture
  • Support for Current Evolving Services
  • Support for Different Access Technologies

Interference
Lack of space
10
Next Generation Access Network
  • Flexibility
  • Multi-Service Support,
  • Multi-Provider Support
  • Full Services Transparency STTM
  • Scalability
  • Penetration Coverage
  • Public Network Requirement
  • Life Line support
  • Service Universality
  • Service, QoS SLA
  • Customer, Multi-Service Multi-Providers support
  • Simplicity
  • Simple to Operate
  • Minimum Changes to Established Procedures
  • User Friendly Setup CPEs
  • Cost Effectiveness
  • Capitalize on Existing Infrastructure

Simplified network architecture that provides
broadband and narrowband services over a scalable
access and distributed switching infrastructure.
11
Agenda
  • Public Network Evolution
  • Driving forces of network evolution
  • Evolution characteristics
  • Access Network Evolution
  • Broadband Access Network
  • NGN Access Network
  • PSTN replacement
  • Economics and Scale
  • Access Network Migration Local Perspective
  • Implementation Issues (universality and OSP)
  • Potential Solutions

12
NGN Access Network
13
Access is the limitation
POTS
Local Exchange
BRI
PRI
64k
E1
X.21/V.35
  • Given the limitation of the traditional C.O.
    switches (64k per line), current access
    infrastructure cannot be the the right basis for
    the Internet economy services
  • Now that Telecom Italia is fully privatized our
    main goal is to freeze all the investment in
    traditional Access Technology (POTS, ISDN and
    Leased Line) moving investments toward Broadband
    solutions Oscar Cicchetti CTO Telecom Italia

14
Broadband Access Technologies
  • Satellite Expensive
  • efficient in remote areas
  • Coax
  • Cable operators exploiting infrastructure
  • Copper
  • ISDN/xDSL, Maximum utilization of existing
    infrastructure
  • Fiber
  • FTTCab FTTCurb FTTB FTTH
  • Electric Power Lines
  • Higher coverage and scalability than PSTN,
    however complex technology
  • Terrestrial Wireless BWLL
  • Both through packet based systems (Wireless
    Ethernet point to Multipoint) or through MMDS/LMDS

15
Todays Local Loop
DISTRIBUTION
CENTRAL OFFICE
SUBSCRIBER
HeadEnd
Cable Hub
TV
ATMSwitch
Mux
PC
T1/E1 Router
Core NGN
PC
DLC
COT
Telephone
Local Exchange Switch
16
Problems with the Current Access Solutions
  • Traditional TDM access technologies are very
    expensive to add additional services
  • Service providers are overlapping legacy and
    broadband access technologies
  • No true integration of services into a single
    subscriber access line yet
  • Multiple bills from the same service provider
  • Infrastructure product are all provided from
    different vendor
  • Scaling and installing subscriber services to the
    masses has been very difficult
  • Not all access technologies will support
    broadband value added services
  • High risk on Investment Protection, Carriers will
    only deploy Next Generation DLC RSU, if they are
    confident that it will be a Node in their NG
    Packet Infrastructure.

17
Multi-Service and NGN Access
Other OSS Managt systems
Access Managt System
Narrowband FXS / FXO
IAD
Home GW
18
NGN Access Characteristics
  • Multi-Service Solution
  • State of the art Packet (IP/ATM) Solution
  • Best efficiency in terms of Transmission BW
  • Future Proof Solution
  • Multi-Service Support (Full convergence of Data
    and voice services)
  • Convergence on IAD/Home Gateway, DLC/DSLAM, and
    Service Gateway
  • Streamline the network (Less boxes in number and
    types)
  • Highly flexible service oriented solution
  • Flexible service provisioning with SLA QoS,
  • Standard based Transparent support of features
    and services
  • Generating new services and revenue opportunities
  • Shorter time to market lower cost
  • Multi-Provider Support
  • End-To-End management

19
NGN Public Access, Serving Central Office
Service Gateway
20
PSTN Traditional wire line voice network
TOLL
User network
Access network
Backbone network
LE
RT
  • Proven economical operator network built out.
  • Toll/Class 4 voice switches for high capacity
    switching
  • LE / Class 5 voice switches for service
    delivery
  • Remote terminals for economical access
  • Flexible service handling intelligent
    networks
  • client server model
  • uses SS7 message transport capability

21
NGN Access - Conceptual Design Objectives
  • Copy the proven traditional voice network
    topology and service models, but address
  • Integrated multi-service (service agnostic)
  • Voice, data, video, entertainment over single
    line
  • New paradigm subscriber focus with assigned
    services vs. service specific
  • Apply latest technologies
  • Broadband to address bandwidth needs
  • Packet technology to allow efficient bandwidth
    utilization
  • Agnostic for access technology
  • Copper, fiber, wireless
  • Unify data streams and ensure equal service
    control
  • Ultimately aimed to reduce operational expenses.
  • Dramatically reduced number of boxes
  • slot cards vs. boxes
  • Management System
  • End to End across Access Network
  • Multi-Service Multi-Provider support
  • Gateway for interoperation with other Operational
    Support Systems
  • Distributed architecture designed for 99.999
    availability

22
A closer look ..
VOICE 64kbps data services
Access network
Backbone network
User network
POTS
LE
RT
ISDN
circuit
  • Reliable Architecture
  • Highly Scalable in Coverage and Number of
    Nodes/Lines
  • Narrow-bandwidth Limits Services Delivery

23
Functions of the LE
VOICE 64kbps data services
Access network
Backbone network
User network
LE
RT
circuit
Remote Access
TRUNKING
Subscriber ACCESS
TRUNKING
Call PROCESSING
24
Multi media switch Broadband Access Node
Any Service (Voice, data, video, entertainment ..
Access network
Backbone network
User network
Packet Service GW
RT
ACCESS
TRUNKING
Relay of Call PROCESSING
25
Remote node Multi Access Line Concentrator
Any Service (Voice, data, video, entertainment ..
Access network
Backbone network
User network
Line Access Concentration
Packet Service GW
packet
Remote Access
TRUNKING
ACCESS
TRUNKING
Relay of Call PROCESSING
26
Customer Premises Integrated Access Device
Any Service (Voice, data, video, entertainment ..
Access network
Backbone network
User network
Line/Access Concentration
Service GW
IAD
Any service
packet
packet
Access Management
Well known ports
Remote Access
Trunking
ACCESS
TRUNKING
PROCESSING
27
Economics and Scale (Drivers)
  • Distribution Service Diversity
  • Service Diversity to follow customer demands
  • Service changes
  • Geography Socio-Economic of Service Areas
  • Multi-Services Quality
  • Universal Service Obligation
  • QOS SLA
  • Tariffs Revenues
  • Maximize Revenues in potential Service area
  • Cost and Tariff to reflect Qualified-Areas/USO/QoS
  • Opex reduction

28
Distributed Access Architecture
PSTN Switched Circuit Network
Public Broadband Core Network
Chasta Aggregation IP router Node
V 5.2
IP/ATM
Service Mediation GW Layer
Service GW
Service GW
POTS ADSL SHDSL VDSL E1/PRI DID E1 IP/ATM
RSU (DLC) /DSLAM
Line Termination Layer
MTU/MDU
DLC/DSLAM
RSU(DLC)/DSLAM
xDSL
xDSL
  • Z-Edge

VDSL
IAD
FXS / FXO
Home GW
29
Economics and Scale Factors
  • Broadband Access Coverage Area
  • Total Service Area
  • Wire Centers in area
  • Wire pairs per Center
  • Wire Length
  • Rate limitations over copper
  • Dedicated against Shared Medium
  • Density and Traffic requirement per Service
  • Symmetric/Asymmetric
  • QOS SLA

30
Agenda
  • Public Network Evolution
  • Driving forces of network evolution
  • Evolution characteristics
  • Access Network Evolution
  • Broadband Access Network
  • NGN Access Network
  • PSTN replacement
  • Economics and Scale
  • Access Network Migration Local Perspective
  • Implementation Issues (universality and OSP)
  • Potential Solutions

31
Broadband Access - Syrian Network
  • Fiber Optic to Several Organizations and Large
    Enterprises
  • SDH based Nodes allowing transmission of NxE1s or
    E3s.
  • Limited use of HDSL as part of TDM/FR Digital
    Leased Line Network, Serving SMEs
  • Using standalone 1 pair and 2 pairs modems to
    deliver low speed LL
  • ATM based ADSL/SHDSL DSLAMs as part of Internet
    backbone
  • for high speed Internet and Leased Lines, is
    under installation (about 5000 ports, expandable
    to 20,000)
  • WLL evaluation/tendering
  • About 80,000 ISDN BRI ports

32
Broadband Access - Limitations
  • Access Network current architecture is not BB
    friendly
  • In Large Cities typical wire center/office area
    ranges between 3-5 KMs,
  • However smaller towns and rural areas tend to
    have longer loops 8 KMs.
  • Most wire Centers has Switches, not much use of
    DLC/RSU concept.
  • No Outdoor Cabinets, minor fiber penetration to
    Local Loop (neither feeder cable/distribution
    cable)
  • Designed toward Single Service per line (voice
    mainly)
  • Large Cities where majority of target BB users,
    suffer shortages of copper loop
  • Outside plant is not evaluated for outdoor/indoor
    Cabinets use
  • Copper quality targets Analog voice delivery, few
    digital testing take place
  • Copper qualifications for Multiple Services and
    Digital transmission
  • Many segments has old copper cables and requires
    replacement,

33
The Way Forward
  • Use current plans for DLC/RSU introduction
  • Target Narrowband and Broadband Services
  • Ensure that DLCs/RSUs will form part of STE
    Packet Network
  • Extend fiber in primary network
  • Design DLC/RSU areas targeting BB (short
    secondary loops)
  • Different Access Solutions to suit different
    areas
  • Follow current demography of each access area
  • Flexibility, Design for Service evolution and
    changes in demography and customer demands (voice
    vs. data)
  • Target Penetration and Scalable platforms
  • Investment protection for future service
    Introduction

34
Service Definition
  • To maximize revenues and customer base, design
    Multi-Service packages
  • Voice Data or Video packages?
  • Circuit-switched or packet-switched?
  • Symmetric or asymmetric?
  • Mass market or niche?
  • Coverage and Market Segmentation?

35
Possible Service Evolution
  • Target Public Voice and Data
  • Meet delayed Voice demands, overcome copper
    shortage (minimize investment in copper through
    pushing fiber in Access Network)
  • Flexible Service Evolution to meet demands for
    higher BW and potential future services
  • Access Nodes to provide POTS/ISDN Lines (directly
    in Curb/Cabinet or Inband VOP)
  • Access Nodes to provide ADSL / SHDSL for Internet
    Access and Leased Lines
  • Migrate to support Video and BW consuming
    Interactive Services

Service Class Typical Customer Application Baskets Maximum Bit rate Downstream (Mbps)
Premium-Business SOHO Fast Internet, Intranet, POTS 0..5-1
Silver-Business SOHO/Small Enterprise Fast Internet, Intranet, ISDN 1-2
Gold-Businessl Small/Medium Enterprise Fast Internet, intranet, Data Transmission, VOP, POTS 2-8
Service Class Application Baskets Maximum Bit rate Downstream (Mbps)
Premium-Residential Fast Internet 0.5
Silver-Residential Fast Internet, POTS 1
Gold-Residential Fast Internet, ISDN 2
36
Thank You
  • Yassar Khoury
  • Zhone Technologies, IncSenior Systems Engineer
  • MEA Asian Sub-Continenttel. 971 4 331
    3421fax. 971 4 332 2865ykhoury_at_zhone.com
About PowerShow.com