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Workshop on ICT Technologies & Standards for NGN, 3G & FMC. Anticipating the benefits of IMS for the service offering. Carlos Akio Matsumoto. mês/2004. About CPqD. Technological and Business Areas. Telecommunications Networks. Business and Operations Support Systems.

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Workshop on ICT Technologies &

Standards for NGN, 3G & FMC

Anticipating the benefits of IMS for the service offering

Carlos Akio Matsumoto

mês/2004


About CPqD ...


Technological and Business Areas

Telecommunications Networks

Business and Operations Support Systems

Wireless Communication

Optical

Communications

Services &

Applications

Business Intelligence

Network

Infrastructure


Share Ownership


What is IMS ?

  • IP Multimedia Subsystem

  • Unified Network Architecture for service offering

  • A functional model structured in levels

  • Service oriented NGN


... And Services

Value Added

Services

Fixed Network

Mobile Network

Data Network

Network Convergence

IP

Net

Legacy

Net


NGN Model

IN(Services)

Service

Standard Interface

(SIP)

Services

Session

Control

Call

Control

Standard Interface

(SIP/MGCP/H.248)

X

Trunk

Subscriber

Transport

User Equipment

TDM

Architecture

NGN

Architecture


Application Servers (AS)

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

SGW

MGCF

HSS

CSCF

MRFC

SIP

Endpoint

Packet

Mobile

WLAN

MRFP

MGW

IMS Architecture

IMS Architecture

Services

Standard Interface

(SIP)

Session

Control

Standard Interface

(SIP/MGCP/H.248)

Transport

&

User Equipment

NGN

Architecture


IMS Architecture (simplified)

Application Servers (AS)

SCP

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

Intelligent

Network

SGW

MGCF

HSS

SS7

CSCF

MRFC

STFCeCircuitMobile

SIP

Endpoint

Packet

Mobile

WLAN

MRFP

MGW

IMS Architecture


Current Status of Network

  • Old-fashionned access network(“no” packet mode transport)

  • Obsolete TDM Switching

  • NGN deployed partially

  • Value Added Service Platform running over circuit switch model and integrated at Telecom Operator’s Operational Process


Where do Investments?

  • Maximize investiments on applications:

    • new services offering

    • differentiate offering over market competition

    • new revenue sources

  • Minimize investments on Infrastructure:

    • Maximize usage of TDM network

  • Focus investments on new technologies

    • minimize investments on legacy network


Technical View

  • 3GPP and 3GPP2: focus on 3G network evolution

  • TDM network are connected to IMS environment throughout Trunking Media Gateways.


  • Issue #1:

    • High CAPEX: IP backbone & gateways;

    • Multi-vendor environment: NOT Real;

    • Real Deployments: only when RoI is guaranteed

~ 30%

~ 70%

NGN-By-The-Book and Main Issues - #1

Value Added

Services

VAS

Softswitch

Trusted Network

IP Network

TGW

TGW

TGW

TDMNetwork


TV2=NGN Traffic

Volume N (C4/C5)

  • Issue #2:

    • TDM Calls NOT “visible” to NGN Value Added Services

    • TV1 >>> TV2

  • Conclusion: Low Level of NGN adoption.

TV1= TDM Traffic

Volume (C4/C5)

L

!

$$,

NGN-By-The-Book and Main Issues - #2

Value Added

Services

  • Issue #1:

    • High CAPEX: IP backbone & gateways;

    • Multi-vendor environment: NOT Real;

    • Real Deployments: only when RoI is guaranteed

VAS

Softswitch

Trusted Network

IP Network

TGW

TGW

TGW

TDMNetwork


How to offer Value Added Services to TDM traffic ?

or...

How to deploy converged services ?

Convergence: Possible ? How to migrate ?

Value Added

Services

VAS

Softswitch

Trusted Network

IP Network

TGW

TGW

TGW

TDMNetwork


SS7 / IN / CAMEL

SCP

Signaling and Service

Converged Platform

Gatewayless NGN

  • Signaling Server

  • (intrusive PTS with services)

    • Audit & Report of ss#7 Messages

    • Usage billing records from ss#7 messages>

      • Local Call

      • Long Distance Call

SS7

SS7

Softswitch

Migration Solution: Softswitch+Signaling Server

Value Added

Services

VAS

Softswitch

Trusted Network

IP Network

TGW

TGW

TGW

TDMNetwork


=>Benefits of that Strategy

Infrastructure Investment

Reduction

control

infrastructure

77%

NGN

“by-the-book”

Gatewayless

NGN

Gatewayless NGN Solution

Value Added

Services

Signaling

and Service

Converged

Platform

SS7 / IN / CAMEL

Local Call

Long Distance

Call


Trunk Media Gateway at that new paradigm

  • Trunk Media Gateway will be connected only when media resource is required from IP Network


Legacy Network connected to IMS (By-The-Book)

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

SS7

Media

Gateway

IMS core

HSS

CSCF

SGW

SS7

Media

Gateway

MGCF

PSTN

MRFC

MRFP


Session Control for Circuit Switched Network- signaling

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

SS7

OSA/Parlay

SIP

IM-SSF

Media

Gateway

IMS core

HSS

CSCF

SGW

SS7

Media

Gateway

MGCF

PSTN

MRFC

MRFP


Session Control for Circuit Switched Network - voice

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

Media

Gateway

IMS core

HSS

CSCF

SGW

Media

Gateway

MGCF

PSTN

MRFC

MRFP


How do Invesment ?

  • Investment on IMS Core

    • Common infrastructure that allow new services offering for any network access

  • Investment on Application Servers

    • New revenue based on new services.

  • Minimize investment on control and transport Infrastructure

    • Trunk Media Gateway is transition equipment

    • No further function for Trunk Gateway on 3G Networks

Investment on Trunking Media Gateways is NOT investment

on NGN!It is investment on LEGACY NETWORK!


Session Control for Signaling and Service Platform

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

IMS core

HSS

CSCF

Media

Gateway

MGCF

PSTN

MRFC

MRFP


Session Control for Signaling and Service Platform - signaling

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

IMS core

HSS

CSCF

Media

Gateway

MGCF

PSTN

MRFC

MRFP


Session Control for Signaling and Service Platform - voice

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

IMS core

HSS

CSCF

Media

Gateway

MGCF

PSTN

MRFC

MRFP


Example 1: Media resource from IP Network (Media Gateway)

PLMN

OSA/Parlay

SIP

OSA/Parlay

SIP

OSA/Parlay

SIP

IM-SSF

IMS core

HSS

Media

Gateway

CSCF

MGCF

PSTN

MRFC

MRFP

Media

Gateway

80% Reduction

on Media Gateway

Investments


Re-Invite #Bo Refer

PTS

REL

IAM*

REL

REL

Invite*

IAM*

Re-Invite #B

IAM

Invite

Invite

IAM

Bye

Bye

* Call ID inserted at #B

Example 2: Service Broker controlling media resource

Application

Server

SIP

ServiceBroker

SoftSwitches

SIP

SS7

SIP

HTTP Server

IP

H.248

SIP

VXML

Media Server

B

A


PTS

Example 3: Service Broke controlling Media Server via MRCP

Application

Server

SIP

ServiceBroker

SoftSwitches

SIP

SS7

SIP

Servidor HTTP

IP

H.248

VXML

MRCP

Media Server

B

A


GW

IAD

TDM switch

Today

Anticipating !

5

years

8

years

Advantage of that Strategy

Application

Server

Call

Control

IP Network

Trunking

Gateways

Access

t


CONCLUSION

  • IMS Migration Advantage: centralized VAS platform

  • VAS delivered for any access network

  • Investment focused on new Value Added Services

  • Standard Interfaces - Open protocols (Multi-vendor environment)

  • Gatewayless proposal:

    • Platform for call and service control:

      • Legacy network (TDM)

      • NGN network

        … or ANY combination of these networks

        • Unifying legacy and NGN Service Platform

    • Legacy network (TDM) connected with IMS in a optimized resource allocation

  • Evolve to IMS


THANK YOU!

Carlos Akio Matsumoto

[email protected]

Tel.: +55 19 3705-4812

CPqD – Centro de

Pesquisa e Desenvolvimento

em Telecomunicações

Rod. Campinas–Mogi-Mirim, km 118,5 – SP340

13086-902 – Campinas – SP

BRASIL

www.cpqd.com.br

CPqD Technologies & Systems, Inc.

101 NE Third Ave – Suite 1500Fort Lauderdale, FL 33301, USA

www.cpqdusa.com


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