Transcript 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
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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
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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….
Ben-Gurion University of the Negev