NGN Strategies for Fixed and Mobile Operators - ITU-APT ...

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NGN Strategies for Fixed and Mobile Operators - ITU-APT ...

Workshop on NGN Regulation and Migration Strategies

Network Architecture

Evolution

Naveen Sood

naveen.sood@alcatel-lucent.com

RU INDIA

Alcatel-Lucent

1 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Agenda

1. Drivers & the evolution to a High Leverage Network

2. PSTN Migration Scenario & Approaches

3. Evolution steps in the Session Control

4. Reference Solution Architecture for PSTN Migration

5. Case Studies for PSTN migration

6. Summary

2 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Drivers & the Evolution to a

High Leverage Network

3 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


A demanding market reality for service providers…

Falling revenue from voice services …

competition from alternative communication

means (VoIP, churning to mobile, IM, etc)

Cost Challenge

Traffic

Aging TDM voice switches …

High maintenance cost

Revenues

and users expect more

Simple, innovative, personalized communication

across any device, any network, anytime,

anywhere

Mainly

voice

Multimedia/multiservice

Time

Requires a change from keeping value in the network to

extracting value from the network

4 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Wireline network transformation

HSI only

DSL

gateways

ATM

DSLAM

ATM

switch

BRAS

ADSL

Access

Service

edge

IP/MPLS core

Residential/

enterprise

gateways

VDSL/

GPON/

Ethernet

Ethernet/

MPLS/

Transport

BNG

Policy

manager

IMS

Access

Service

edge

IP/MPLS core

Triple play bundle

Web and Enterprise 2.0

MSE

Enhanced residential and enterprise services

• Improves capacity/reach of copper and roll-out of fiber to the most economical-point

• Optimized for IPTV, VoIP, high speed Internet, business VPN services

• New revenue generating opportunities:

• HDTV, PPV, TSTV and PVR

• Application Assured business VPN services, Ethernet services

5 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Wireless network transformation

2G/3G

(all radio)

HSI only

BTS

Access

Cell site

access

TDM and ATM

aggregation

Backhaul

BSC

RNC

MSC

SGSN

PDSN

GMSC Softswitch MGW

Circuit switched core

(voice)

GGSN

Home Agent

Node B

Packet switched

core (data)

LTE

eNode B

Cell site

access

Ethernet/

MPLS/

Transport

SGW

MME

PCRF

PGW

IMS

Access and backhaul

Evolved

Packet Core

IP/MPLS

core

Wireless network transformation

• Ensure smooth evolution to LTE

• Scale backhaul to keep up with growth of data traffic

• Prepare network for growing demand for multimedia services

6 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Service providers are transforming to a High Leverage Network

After the transformation, wireless and wireline networks look very similar . . .

LTE

eNode B

Cell site

access

Ethernet/

MPLS/

Transport

SGW

MME

PCRF

PGW

IMS

Access and backhaul

Evolved

Packet Core

IP/MPLS

core

Web 2.0

Part of the HLN,

a Converged

Session Control

Residential/

Enterprise

Gateways

VDSL/

GPON/

Ethernet

Ethernet/

MPLS/Transport

BNG

Policy

manager

IMS

Access

Service

edge

IP/MPLS

backbone

Triple play bundle

Web and Enterprise 2.0

MSE

The vision is for IMS to support all types of access, including legacy fixed, legacy

mobile, WLAN, and new 4G access, including WiMAX, LTE

7 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


PSTN Migration Scenario &

Approaches

8 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


PSTN Migration Scenario:

Final Instead of Transitional Softswitch architecture

Traditional Switch Model

Consolidated SoftSwitch Model

3GPP/3GPP2 IMS Model

IN

Services

IN, AIN,

& Camel

App

Servers

JTAPI, Parlay,

& Proprietary

Subscriber

Data

App

Servers

App

Servers

App

Servers

Wireline

Subscriber

Data

Features

Call Control

Signalling

Bearer Path

Control

Switch

Fabric

SIP, H.323,

& MGCP

IP

Wireline

Subscriber

Data

Embedded

Services

single step approach

Call Control

Signalling

Gateway

Media GW

Controller

Media

Gateway

H.248/MEGACO

XML

SIP

Session Control

CSCF

IP

SIP

MGCF

Signalling

Gateway

Media GW

Controller

Media

Gateway

SIP

H.248

Analog

Circuit Wireless

– Limited 3 rd rd party app support

– Custom hardware/software

– No IP Support

– Bearer follows signaling

IP

Endpoints

Analog

Circuit Wireless

+ Call control separate from bearer

+ IP and multi-media media enabled

+ Commodity hardware and standardized interfaces

+ Better 3 rd rd party application support

– Limited 3rd party API standardization

– 3rd party application interactions limited by

embedded services/call model

– Internal element integration limits deployment options

SIP Endpoints

Analog

Circuit Wireless

+ Standard interface to multiple 3 rd rd party

applications

+ Applications can be “blended” together

serially or in parallel for unique combinations

+ Single sign on – into session layer for voice,

data, video, etc. applications

+ Common subscriber data leveraged by each

application

9 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


What is the operator’s strategy ?

Alternative 1

• Continue legacy

Alternative 2

• Transform but don’t evolve

Alternate 3

• Transform and Evolve

10 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Investment Strategy

Objective

• Invest in the most future proof

technology possible in the context of

asset lives and revenues possible

• Deploy Converged Core for all types of

access network

Strategy

• Invest in one-step approach instead of

two step approach

• Use IMS for access agnostic core

• Use service control layer to enable

subscribers enjoy similar “user

experience” across domains

• Deploy IMS which makes FMC possible

• Invest for ease of operations cost

• All-IP network and common core

reduces the OPEX costs

11 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Evolution steps in the Session Control

of a High Leverage Network

12 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 1

SS7

HLR

PSTN

TDM

MSC

TDM Access

2G/3G

13 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 2: Add mobile NGN

ISUP

SS7

HLR

MGCF

PSTN

SG

WMG

MG

H.248,

M3UA

2G/3G

14 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 3a: Migrate POTS

ISUP

SS7

PSTN

SG

SIP-I

MG

MGCF

MGCF

H.248,

M3UA

SIP

IMS Session Control

TAS

AGCF iHSS

ISC

H.248 H.248

Voice

H.248 Access

GW

.

Web Portal

Optional

Presence,

etc

V5.2

VISC

MSAN

Next Gen

Legacy

Access

Voice

FTTN

2G/3G

Legacy

DLCs

IP IP

LAG

ISAM Voice

15 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 3b: VoIP for DSL

ISUP

SS7

PSTN

SG

SIP-I

MG

MGCF

MGCF

H.248,

M3UA

SIP

IMS Session Control

TAS

AGCF iHSS

ISC

ISC

H.248 H.248

Voice

H.248 Access

GW

.

Web Portal

Optional

GPON

OLT

Presence,

etc

SIP

IP

DSLAM

V5.2

VISC

MSAN

Next Gen

Legacy

Access

Voice

FTTN

GPON

ONT

IP Access

H.248

GPON

ONT

SIP

RG

Note: Can

also support

SIP-based

endpoints.

RG

SIP

2G/3G

Legacy

DLCs

IP IP

LAG

ISAM Voice

FTTU

GPON

VoBB

16 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 4a: Wimax

ISUP

SS7

PSTN

SG

SIP-I

MG

MGCF

MGCF

H.248,

M3UA

IMS Session Control

TAS

SIP AGCF iHSS

ISC

ISC

H.248

H.248

Voice

Access

GW

H.248

.

Web Portal

Optional

GPON

OLT

Presence,

etc

SIP

IP

DSLAM

SIP

WAC

V5.2

VISC

MSAN

Next Gen

Legacy

Access

Voice

FTTN

GPON

ONT

IP Access

H.248

GPON

ONT

SIP

RG

Note: Can

also support

SIP-based

endpoints.

RG

SIP

2G/3G

Wimax

Legacy

DLCs

IP IP

LAG

ISAM Voice

FTTU

GPON

VoBB

17 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Example of network evolution

Step 4b: LTE

ISUP

SS7

PSTN

SG

SIP-I

MG

MGCF

MGCF

H.248,

M3UA

IMS Session Control

TAS

SIP AGCF iHSS

ISC

ISC

H.248

H.248

Voice

Access

GW

H.248

.

Web Portal

Optional

GPON

OLT

Presence,

etc

SIP

IP

DSLAM

SIP

WAC

ePC

SIP

V5.2

VISC

MSAN

Next Gen

Legacy

Access

Voice

FTTN

GPON

ONT

IP Access

H.248

GPON

ONT

SIP

RG

Note: Can

also support

SIP-based

endpoints.

RG

SIP

2G/3G

Wimax

LTE

Legacy

DLCs

IP IP

LAG

ISAM Voice

FTTU

GPON

VoBB

18 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Solution Architecture for

PSTN migration

19 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


Reference Architecture in NGN/IMS

Standard Functions

Applications

XDMS Web Portal Presence IM

EMS/NMS

ENUM, DNS

LIG

Session control

CSCF

Functions:

• I/S/E-CSCF, BGCF, iAGCF

TAS

Basic/Supplementary

Services

HSS

CCF

Media server

Line Media Gateway

Trunk Media Gateway

IP interconnect border

MGW and controllers

Access SIP MSAN

MGW I-BGF/A-

BGF

MGCF/SPDF/I-BCF

Clients

CPE

UE

20 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Class 5 PAN INDIA Architecture

Central

Web Portal

Presence

EMS/NMS

ENUM, DNS

HSS

Zonal

CSCF

CCF

MGCF/SPDF

/I-BCF

CSCF

MGCF/SPDF

/I-BCF

CSCF

MGCF/SPDF

/I-BCF

CSCF

MGCF/SPDF

/I-BCF

TAS CCF TAS CCF TAS CCF TAS

BGF

MGW

BGF

MGW

BGF

MGW

BGF

MGW

BGF

MGW

BGF

MGW

BGF

MGW

BGF

MGW

Circle

MSAN MRF

MSAN MRF

MSAN MRF

MSAN MRF

MSAN MRF

MSAN MRF

MSAN MRF

MSAN MRF

LIG

LIG

LIG

LIG

LIG

LIG

LIG

LIG

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

21 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Conclusion

Case studies for PSTN migration

22 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


Brasil Telecom (Brazil)

Largest IMS deployment in Latin America

Compelling event

• Replacing outdated Class-5 network with IMS solution.

• 10 large areas, 423 Sites (Class-5 Replacements).

• Over 600,000 subscribers.

• Major Multi-Unit project valued at millions of dollars

• Alcatel-Lucent’s contract signed in March 08.

Benefits:

Under NDA

• Cope with regulatory Number Portability.

• Opex reductions.

• Offer integrated value-added services.

Success Factors:

• Innovation offered through our IMS solution

• End-to-end integration

• Long-standing partnership

• Easily evolves, enabling multimedia services

• Alcatel-Lucent’s tightly integrated Solution.

Brasil Telecom: Incumbent in Region II of Brazil

(41 million people, 25% of GDP) involved in

bundled Fixed/Mobile and Broadband services.

Subscribers: 8M Fixed, 4M Mobile, 1.6M ADSL.

“With this advanced platform, we will be

able to offer new value added services and

integrated voice, data and multimedia

solutions to our corporate and residential

customers”

23 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Brazil Telecom – IMS Based Class 5 Migration

Compact IMS

SIP

5020 MGC-12

Session

Control

Feature Server, Session Mgr,

Resource Mgr

MGCF/SG

H.248

H.248

SIP

SIP

5450 AGCF

AGCF

IP Network

H.248

H.248

7510 MGW

MGW

PSTN

7515 MGW

MGW

Media &

Endpoint

7302 ISAM-V

AGW

IP Access

7302 ISAM-V

AGW

POTS/ADSL

POTS

Applications

‣ Class-5 Replacement, due to

obsolescence

5060 ICS

IMS in a

Box

Solution

‣ 5450 ISC

‣ 5420 CTS

‣ 5020 MGC-12

‣ 5450 AGCF

‣ 7510 & 7515 MGW

‣ 7302 ISAM-V

Notes

‣ In addition to the PSTN

replacement project they are

working on an IMS project.

‣ They recently purchased the

5060 ICS (ATCA) IMS solution

(EOY’08) for their IMS project.

24 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


TNZ (New Zealand)

IMS Primary Line Voice Program

Compelling event

• Regulatory undertaking that enhance

competition

• Aging TDM network

• Declining margins in tradition business

Benefits

• Protect and grow traditional revenues

• Improve operational efficiency (reduced Opex)

• Invest in world–class IP infrastructure

• Develop and grow new service revenues

Success Factors:

• Reasonable price offer for an e2e IMS

solution

• Existing partnership in both mobile and

wireline

TNZ incumbent Fixed-Mobile operator with 2M

Mobile, 1.6 M Fixed and 1M Broadband subscribers

“… investment in IMS will allow the development of

world leading products that allow our customers to

enjoy the very best in voice, video and application

services“

Frank Mount, group chief transformation officer,

Telecom

25 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


TNZ (New Zealand) – Prime Line Voice (VoIP)

High Level Architecture ID Card

Applications

Comm. Mgr.

Web Portal

Session

Control

Converse

VMS

Media &

Endpoint

USDS

HSS

5450 MS

Media

Server

SIP

5420 CTS

Feature

Server

5450 ISC

Session

Manager

IP Network

AcmePacket

RG

SBC

IP Access

1357 LI

LI

Support Systems

OMC-P, XMC, eSM

EMS

5020 MGC-12

MGCF/SG

H.248

7510 MGW

MGW

8615 IeCCF

CCF

VitalQIP

ENUM

PSTN

Application

• Primary Line Voice (PLV) VoIP in a pull

mode (customer willing to migrate to

VoIP and buying RGW)

• Start with 25K in 4Q’09 and plan to

scale to 1M+

• IP-PBX trunking and PSTN replacement

(Push mode) start trial in 2H’09

Status

• Network ready for Service 4Q’08 with

IMS R6.1

• Field trial completed in 1Q’09

• Commercial deployment in progress

Alcatel-Lucent

ALU Partner

Other Vendor

Notes

• Turnkey project managed by Alcatel-

Lucent incl. Design, Installation,

Integration, Test, Deployment and

operation

• Lot of integration work with OSS/BSS

26 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Service providers around the globe are implementing IMS

“… convergence as a clear focal point …” Scott Alcott, Belgacom, April 2008

“… with IMS we can grow our services ….” Bill DeMuth, SureWest Communications – April 2008

“… We’ll be able to “build” an application once …” Dick Lynch, Verizon Wireless - April 2008

“… build converged services with design anticipation of IMS …” Dave Elmendorf, BT - 2008

“IMS is a key technology to further develop VoIP …” Hsieh Chun-Ming, Chunghwa Telecom –

December 2007

“… IMS as … a future-proof technology …” Wojciech Lubczyński, Exatel S.A. – October 2007

“…We adopted IMS to be used as a session layer piece of our architecture.” Siroos Afshar, AT&T –

October 2007

27 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Summary

28 | High Migration Leverage to a Network HLN General Customer Presentation, V1 July 2009

All Rights Reserved © Alcatel-Lucent 2010


Subs on IMS on the rise

IMS Subs base is expanding

(Infonetics)

• There are currently over 80 IMS networks with commercial services. The majority of

these networks are for fixed-line VoIP services.

29 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Subs on IMS on the rise – cont.

Dominated by Fixed Line

(Infonetics)

• In 1Q10, the majority of core IMS sales came from fixed line networks (64.2%) rather

than mobile deployments. The growth in mobile network IMS revenue will greatly expand

in CY12 thru CY14, with a number of mobile operators deploying mobile messaging,RCS

and LTE.

30 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


www.alcatel-lucent.com

31 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


What is Alcatel-Lucent’s Position in the Market?

Strong Customer Experience . . . .

61 Customers and Growing!

Consumer VoIP

• Public: AT&T, Belgacom, Delta, Exatel, ICE,

KPN, North Rock, Sure West, Westelcom

• Non Public: Australia, Canada, France, Italy,

Mexico, New Zealand, Peru, USA, UK

13

13

19

6

Class 5 Migration

• Public: Oi/Brasil Telecom, Enitel, Manx Tel.

• Non Public: Bolivia, Dominican Republic,

Guatemala, Mexico, New Zealand, UK

Business VoIP

• Public: Belgacom, Exatel, KPN, NWT,

Westelcom

• Non Public: France, Norway, Thailand, USA

Enhanced Communication Services Mobile

• Public: AT&T, Bouygues

• Non Public: Australia, France, Ghana, Korea,

USA

IP Border (Access & Interconnect)

• Public: Telenor

• Non Public: France, Germany, Italy, USA

32 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010


Class 5 Migration Approaches

EO

Existing

Endpoints

ISUP MGCF

MGW

Legacy VoBB

Growth Endpoints

Growth

SIP/IMS

IP

SIP

ISAM-V

RG

Operators in emerging

markets are still

experiencing line growth

• There are benefits to

investing in IP, rather than

circuit-based technology

(e.g., new services)

• Markets with line growth

include Africa, the Middle

East, the Commonwealth of

Independent States (CIS),

and areas in Asia-Pacific

EO

Legacy

Endpoints

MGCF

MGW

SIP/IMS

SIP or

IP H.248

ISAMV

Legacy

Endpoints

Replacement

• Some operators are

considering replacing their

TDM Class 5 switches with

IP-based technology

• The goal of this

replacement is primarily

for operational savings

• Service providers who

have advertised this

strategy include BT and DT

EO

Existing

Endpoints

ISUP MGCF

MGW

SIP/IMS

IP

ISAM

SIP

RG

VoBB

Endpoints

Broadband Overlay

• Many service providers are

investing in an overlay

broadband infrastructure

for new services

• End-users can be enticed to

move their voice to the

broadband network as part

of bundles with data and

video services

• AT&T, KPN and Verizon are

examples of operators in

this category

33 | Migration to a HLN All Rights Reserved © Alcatel-Lucent 2010

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