Tutorials

Tutorial Schedule:

About T1 Speaker:

Simon Znaty obtained his PhD on Telecommunications from ENST ( Télécom Paris - École Nationale Supérieure des Télécommunications) in France. He has worked as R&D engineer for NTT, Swisscom and Telecom Argentina. He has been a full professor at ENST-Bretagne managing an industrail research chair funded by a mobile service provider Bouygues Telecom on "Mobile services". He is currently a lecturer at EFORT (" Etudes et FORmations en Telecommunications ") on advanced telecommunications topics.

T1 Summary :

Many successful services are available today on the Internet, including e-mail, web browsing, chat, and audio and video downloading/streaming. Internet telephony and Multimedia Communications Services, some of the latest that have been launched, are already being proposed by Microsoft, Google, Yahoo and Ebay. As telephony is simply another Internet application, any company, even if it is not an access provider, can provide a telephony service. The above actors are already active in this market, but are all proposing proprietary Internet telephony solutions. In this context, the operators which telephony service was their core business will need to reposition their business towards value-added IP services including telephony, becoming global service providers. In this case, they will have to rapidly push IMS before proprietary solutions become largely adopted. IMS is the only standardized solution in the telecommunications world.

IMS – IP Multimedia Subsystem standardized by the telecommunications world is a new architecture based on new concepts, new technologies, new partners and ecosystem. IMS provides real-time multimedia sessions (voice session, video session , conference session, etc) and non real-time multimedia sessions (Push to talk, Presence, instant messaging) over an all-IP network. IMS targets convergence of services supplied indifferently by different types of networks : fixed, mobile, Internet.

This tutorial presents the IMS Service Architectures and the possible IMS applications with the underlying concepts, involved entities and their functionalities.

•  Concepts behind the IMS service architecture

•  IMS Service architecture
Entities;Interfaces;Used protocols;User Profile and Service profile;Service marks in the service profile (Initial Filter Criteria);Concepts of network service and user-based service Service Invocation;Service provisioning;Service combination

•  The service broker (SCIM) in the IMS service architecture
Invocation of combined services without a service broker;Invocation of combined service with a service broker to manage service interaction problems

•  IMS service capabilities

•  IMS and supplementary telephony services

•  IMS and value added services

•  Charging of IMS services (on-line and off-line)

•  Voice call continuity (VCC) in IMS
VCC concept and architecture;Impact of VCC on supplementary telephony services;Impact of VCC on value added services

•  IMS and CAMEL/IN interworking
Business model behind it;Example of the prepaid service

About T2 Speaker:

Claude Cornet passed from National Polytechnique Institute, Grenoble in 1974, and completed the DEA from Grenoble University in 1974. He started his career with Aerospatiale France working with the development of H/W and S/W for test automation. After this short stint he joined Hewlett-Packard and has been a R&D Manager holding various positions ever since. He led the development of ISDN, X.25, SS7 and IN components. He has been a member of HP Network architecture Group for distributed systems and associated protocols. Claude has been on the editorial board of ITU, Chairman of the working group on Network Architecture at ETSI. He has been part of the Voice Activities team at ECMA, and editor of guideline on Network Routing and Addressing at EWOS. He is currently the R&D Manager for HP Media Platforms and allied developments, including the relationship with HP Lab.

T2 Summary :

In the evolution towards IMS and multimedia-based services, service providers are exploring new capabilities, new ideas, to create everyday more attractive services.  Platforms to help deploy those services must support this highly dynamic and demanding environment, in an efficient and economical way.

This presentation discusses the merits of a software approach on general purpose processors to implement such platforms. The presentation is divided in to the following topics:

About T3 Speakers:

Meera Balakrishnan: Meera received a PhD in Computer Engineering from the EE Systems department of the University of Southern California , Los Angeles . Meera has been with Infineon Technologies in the Wireless System division at Bangalore , India since April 2006. Prior to joining Infineon she was as a Member of Technical Staff at AT&T/Lucent Technologies Bell Labs., USA and an NSF Post Doctoral Researcher at Duke University , North Carolina .

Satinder Randhawa : Satinder Singh Randhawa has a Masters in Software Systems. He has been with Infineon Technologies in the software wireless group since October 2003. He has more than 8 years of experience on the handset and related telecom network infrastructure. His focus area at Infineon has been in IMS. Prior to joining Infineon he was a Member of Technical Staff at Lucent Technologies Bell Labs for the 1xEvDo program.

T3 Summary :

About T4 Speakers:

Anders Askerup is a Product Architect in Hewlett-Packard's Software OpenCall Business Unit. Anders current assignment is as a principal engineer for the OpenCall HLR and HSS products. He has also been involved with various aspects of architecture and engineering for a number of other HP OpenCall products, such as IN services, Prepaid systems and Subscriber Data Manager.

Anders is HP's delegate to the 3 rd Generation Partnership Project, Technical Specification Group Core Network and Terminals, Working Group 4 (3GPP CT4).

Anders is a MAP and DIAMETER protocol expert and has written numerous contributions to the 3GPP stage 2 and stage 3 specifications involving the HSS and other network elements. In addition to Anders involvement in 3GPP, he has in the past also represented Hewlett-Packard in other industry consortiums and standardization organizations such as TIA, UWCC, MWIF and IETF.

Prior to joining Hewlett-Packard in 1998, Anders worked as a Systems Engineer for Ericsson in Europe and North America .

Nagesh Kuriyavar works as software designer in the Service Profile Product Family inside the OpenCall Business Unit, involved in: Mobility Management and Subscriber Profile Management. He is currently based in Omaha , Nebraska .

After obtaining a degree in Electronics & Communication from Karnataka University in Dharwad , India , and M.S. from South Dakota State University in 1994. He also worked as a teaching assistant and campus network assistant while studying for his M.S. He also published a research paper “ATM Network Rerouting with One Link Failure” at Mid-Continent Information and Database System Conference, at Fargo , North Dakota in August 1996. Nagesh has worked on second generation and third generation network product like HLR and HSS. He has worked on IMS CN major Interfaces like Cx, Sh, Dx, Dh , Wx and Radius interface messages interacting with HSS as well as provisioning of HSS subscribers. He has also worked on several provisioning subsystems for provisioning the wireless subscribers. His work covers several encryption algorithms used for sensitive data protection. In 2005 he completed his MBA from Kelley School of Business of Indiana University , he has performed competitive analysis, technical analysis, ROI analysis and pricing model evaluation for Subscriber Data Management (SDM) project.

James got his BS (1981) and MS (1983) degrees from University of Nebraska in USA. He has worked for ACI, US West, Tandem à Compaq- à HP. He brings with him 22 years of design experience as an architect in Telecom Engineering group. He has worked extensively on both solution design and product design of Telecom software. He is currently the Chief Architect for the group responsible for the development of the HP HLR and HSS products. In that job he is primarily responsible for the software architecture of those products.

T4 Summary :

The speakers will cover the vital issues concerning management of Subscriber Data in an IP Multimedia Subsystem Core Network from an Architectural design perspective and relationship to the prevailing 3GPP/3GPP2 standards. The areas covered would include:

•  IMS reference model – A brief description
•  Diameter protocol - A description

SCTP, IPSec, TLS,

•  Interfaces
      • Cx
      Command codes, AVPs; Data Model – Registration, Authentication and DeRegistration; Use cases for       each CC covering scenarios
      • Sh
       Command codes, AVPs; Data Model – Location ,Data Repository and Identity; Use cases for each CC       covering scenarios

About T5 Speakers:

Binod PG is a Sr. Staff Engineer at Sun Microsystems and is the architect of Sun Java System Communications Application Server (SJSCAS); which is being developed in the open source as Project Sailfin. He was also the member of the expert group on Java EE Connectors Specification.

Prasad Subramanian is a Staff Engineer at Sun Microsystems and is the engineering lead of Sun Java System Communications Application Server (SJSCAS); which is being developed in the open source as Project Sailfin.

He was also the member of the expert group on SIP Servlet API Specification (JSR289).

T5 Summary :

This tutorial would focus on how a SIP Servlet programming model could be used to add a service in the Application Server. A simple application based on the SIP Servlet Programming model and Java EE would be developed and deployed on a IMS Application Server. The application thus developed would provide a "service" to call being routed through the Application Server.

About T6 Speakers:

Archan Misra is a Research Staff Member with the Event-Based Systems department at the IBM TJ Watson Research Center, Hawthorne , NY . He has been working on infrastructural components and protocols for stream-based computing, presence-aware middleware and pervasive applications for the past 5 years. In particular, he works on IBM's telecommunications product line, designing software for retrieving, correlating and disseminating context-information from mobile and intermittently connected devices. He was a member of the team that built and deployed PASTA, a middleware for advanced presence-based multimedia services in telecom environments, and was the Technical Lead on the development of BusinessFinder, an IBM service for presence-aware multimodal search for mobile consumers. As part of his earlier job as a researcher at Telcordia Technologies (Bellcore), Archan worked on mobility management architectures for IP-based cellular networks, including both network-layer (extensions to Mobile IP) and application-layer (extensions to SIP) handoff techniques.

His other ongoing research efforts and interests include middleware for advanced presence-aware converged services, protocols for high-performance wireless meshes and data management middleware for multimedia sensor networks. He has published extensively in the areas of wireless networking, congestion control and mobility management and was a co-author on papers that received the Best Paper awards in ACM WOWMOM 2002 and IEEE MILCOM 2001. He serves on the technical program committees of several conferences, such as IEEE INFOCOM and IEEE WOWMOM and currently chairs the IEEE Computer Society's Technical Committee on Computer Communications (TCCC). He is an editor of the IEEE Wireless Communications magazine and the Journal of Pervasive and Mobile Computing. Archan received his Ph.D. in Electrical and Computer Engineering from the University of Maryland at College Park in May, 2000, and his B.Tech in Electronics and Communication Engineering from IIT Kharagpur, India in July 1993. Professional details are available at http://www.research.ibm.com/people/a/archan .

Arup Acharya works in the Internet Infrastructure and Computing Utilities group at IBM T.J. Watson Research Center and also leads the Advanced Networking micropractice in On-Demand Innovation Services. He has been working on SIP since 2002, through research projects, customer consulting engagements and providing subject matter expertise in corporate strategy teams. Presently, he is leading a first-of-a-kind IBM Research proposal on large-scale presence federation. Other projects include scalability and performance of SIP servers for large workloads, enabling SIP-based applications, controlling wearable devices using SIP, role of SIP/ SIMPLE in multi-player networked games and location-based services such as e911. He was involved with a joint industry/academia NSF project on a testbed for next generation wireless networks (ORBIT), where he investigated peer-to-peer SIP architectures and mobility control architectures for dual-mode devices.

His other interests include networking architectures such as IPv6 and wireless mesh networks. He has published extensively in conferences/journals, and is currently the Vice-Chair of IEEE ICDCS 2006 and IEEE MASS 2005. He was the past co-chair of the Global Internet and Next Generation Networks Symposium 2004. He has been awarded eight patents and has also contributed to standards bodies such as the IETF and ATM Forum. Before joining IBM, he was with NEC C&C Research Laboratories, Princeton between May '95 and Nov'99. He holds a Visiting Professor position at WINLAB, Rutgers University . He received a B.Tech degree in Computer Science from the Indian Institute of Technology, Kharagpur and a PhD in Computer Science from Rutgers University in 1995. Further information is available at http://www.research.ibm.com/people/a/arup/

T6 Summary :

Presence, broadly defined as the ability of a communications infrastructure to both track and disseminate a variety of dynamic attributes of individuals or objects, is at heart of an agile IMS infrastructure. Presence has evolved from its roots as a means for expressing connectivity status in IM systems to become a de-facto event bus for a much wider set of network-based dynamic information. The term “rich presence” thus describes the notion that presence can be used to capture data, such as detailed activity information, biomedical sensor data, calendar events, from a variety of sensors and software systems.

This tutorial will provide an introduction to the basic notions of Presence, describe the SIMPLE and XMPP models of event publishing and subscription, explain the key technology enablers and standards for presence-based services and highlight research activities and challenges in the area of scalable and rich presence.

Detailed Outline of Contents (4 Hours)

•  Presence and Event Notification Architecture
SIP Architectural Overview; Simple for IM and Presence; Watchers, Presentities and Proxies; Publish/ Subscribe mechanisms and Event packages ; Presence Documents; Presence Privacy; XMPP Architecture for Presence and Jabber

•  Extended Presence Concepts
PIDF and Rich Presence Extensions; MSRP and integration with SIP

•  Related Technologies and Standards
XCAP and Presence Management; GLMS and Group Management; RLS; SigComp and Presence; Web2.0 and Presence

•  IMS and Presence
IMS Presence Architecture; Pen, Ut Interfaces

•  Research directions in Presence
Automatic Derivation of Presence; Presence Federation and Scaling; Logical Presence Aggregation; Presence Traffic Generation Control; Presence Classification and Overload Control; Presence Reputation Management; Searchable Presence and Semantic Queries; Flexible Presence Storage and Subscription Matching; Context-Sensitive Access Control; Presence Privacy

•  Presence Implementation and Products
OpenIMS Presence Server; IBM Presence Server and Lotus RTC

•  Presence-Enabled Applications
Mobile Gaming; Context-based Preference Adaptation; BusinessFinder; Others

•  Conclusions