Ben-Gurion University of the Negev

Analyzing the Integration of Innovative Telecommunication

Technologies

Project Number P-2007-055

Yossi Twizer

Supervisor: Prof. Benjamin Arazi

6/6/2007

Ben-Gurion University of the Negev

Agenda

• Motivations

• Project Scope & Goals

• Analyzed Technologies

• Technologies Highlights

• Preliminary Conclusions

• Next Analysis Phase

• Time for Questions

Ben-Gurion University of the Negev

Motivations

• Interconnecting New & Legacy Telecommunication Technologies

• IP based Services Convergence

Providing New services and functionalities

Core COGS Saving

Unified Access Network

• Follow the $ Big money opportunities

Market leadership

Ben-Gurion University of the Negev

Project Scope

• Analyzing 4 Leading Telecommunication Technologies:

Focusing on Protocol Level

Top-to-Bottom Approach

Special Attention on Signalling & Traffic delivery flows

Current Interoperability Analysis

Gaps Detection

• Analyzing the IP Convergence Impact Analysis:

Networks Architecture changes

New Signalling protocols and information flows

Integration Point Analysis

Ben-Gurion University of the Negev

Project Goals

• Acquiring High Level of Understanding

Per technology

Per protocol

• Mapping current gaps in existing architectures

Signalling convergence issues

Install bases and migration paths

• Detecting & offering the optimal integration point

Ben-Gurion University of the Negev

Analyzed Technologies

• Focusing on the following Leading Technologies:

PSTN – Public Switching Telephony Network

Cellular Networks – 2.5G & 3G GSM Networks

VoIP Telephony Services

IP Multimedia Subsystem (IMS)

3G Core Implementation

NGN Cores Implementation

Cores for New Access technologies (WiMAX)

Ben-Gurion University of the Negev

PSTN Technology Highlights

• Plain Old Telephony System (POTS)

Worldwide install base

Highly adopted & Fully integrated

Offering basic Services

• Circuit Switch Based

Low efficiency Vs. High Quality

Dedicated signalling system

• “Stupid” End-User Equipment Vs. Smart Core

Low level of flexibility

High cost for convergence

Emulation \ Simulation concept

Ben-Gurion University of the Negev

2.5G & 3G GSM Networks Highlights

• Public Land Mobile Network (PLMN)

Amazing install base (over 2B of users)

Offering both IP & CS services

Integrated Interoperability through PSTN

• CS migration to Fully PS configuration

R7 is expected to be IPv6 with VoIP implementation

Dedicated Signalling protocols

• “Smart” handsets

High level of flexibility

Handsets readiness for fully IP env.

High cost for new Core technologies

Ben-Gurion University of the Negev

VoIP Telephony systems Highlights

• Voice over Internet Protocol (VoIP)

Greatest impact on telecom world

Major COGS saver at core level

Expensive at last mile level

• Fully PS concept

High efficiency

QoS and regulation issues (911, 5-Nines)

Requires expensive UE

• Multiple signalling protocols

Integration issue (!!)

Penetrating as part of 3Play

Ben-Gurion University of the Negev

IMS Architecture Highlights

• IP Multimedia Subsystem

Totally new core technology concept

Signalling – SIP based

Traffic – over IP fully flexible

Last mile – undefined !

• Originated for 3G GSM, adopted by:

CDMA2000 (3GPP2)

NGN TISPAN

WiMAX Forum

• Implements a unified core

Regardless of Last mile

Regardless of service

Offering new roaming services

Ben-Gurion University of the Negev

Preliminary Conclusions

• Best integration point is at the CORE level

Saving CORE COGS

Offering new services (e.g. Fixed-Mobile Roaming)

Converging infrastructures

• SIP signalling is considered Highly efficient

Supports service initiation, billing, Telephony services

Is not aware of service type – full flexibility

Easy to adopt

• IP migration is expected to be highly expensive

Last mile issue

Handsets issue

Ben-Gurion University of the Negev

Preliminary Conclusions- Cont.

IMS integrates it all and therefore is expected to be a leading technology bridging between future IP bases services !!

NGN Networks - Fixed

Future Cellular – Mobile

WiMAX Solutions - Wireless

Ben-Gurion University of the Negev

Next Analysis Phase

• In depth analysis of IMS technology:

Detailed NGN integration concept

Detailed SIP signalling flows

Advanced capabilities analysis (e.g. Roaming)

• Study cases analysis

Learning from first implementations

Detecting on-field integration problems

Ben-Gurion University of the Negev

Thank You!

Time for Questions….