The Workshop

The IET 3rd International Telecoms Synchronisation Forum will start with a workshop, which is planned for the 17th of October 2005.

The Workshop will be delivered by leading industry experts covering the current status of synchronisation.

Monday 17th October 2005

Telecom Synchronisation Workshop

12.00 Registration and Lunch
   
13:00

Introduction, Fundamentals and Standards

  • Historical background to synchronisation networks
  • Time (UTC) and accurate frequency
  • Synchronisation modes
  • Synchronisation architecture
  • Introduction to basic sync transport
  • The impact of poor synchronisation
  • Relevant standards bodies, key ITU and ETSI standards
  • Current trends
    Dominik Schneuwly,
    Senior Engineer, OSCILLOQUARTZ, Switzerland
   
13.40

Quartz Clocks

  • Quartz oscillator technology and performance
  • Temperature behaviour and control
  • Frequency accuracy
  • Short- and long-term stability
  • Requirements in telecom applications
  • Clocks in locked and holdover modes
    Yves Schwab,
    Sales Manager, OSCILLOQUARTZ , Switzerland
   
14.20

Atomic Clocks

  • Atomic clock fundamentals
  • Rubidium gas cell atomic clocks
  • Caesium beam atomic clocks
  • Future chip scale atomic clocks
    R. Michael Garvey

    CTO, Technology Realisation Center, SYMMETRICOM, USA
15.00 Break
   
15.25

GPS as a Telecom Sync PRC

  • What Is GPS?
  • Signal structure
  • Error sources
  • PRC based GPS receivers systems
  • Antenna considerations
  • Failure modes
  • Policy and future
  • Galileo update
  • Status of loran c as an alternative to GPS
    Marc Weiss
    , Telecom Sync & GPS Expert, NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, USA
    Peter Whibberley,
    Senior Research Scientist, NATIONAL PHYSICAL LABORATORY , UK
   
16.10

Quality Metrics for Sync Networks

  • Definition of jitter & wander
  • Definition of MTIE
  • How to compute MTIE from phase data
  • MTIE accuracy issues .  Definition of TDEV
  • TDEV accuracy issues
  • MTIE & TDEV as the quality metrics for Sync
    Ian Wright,
    Technical Services Manager , CHRONOS , UK
   
16.55

Synchronisation in SDH Networks

  • Why do SDH networks need synchronisation?
  • How to sync SDH networks
  • SDH master-slave sync architecture
  • SETS timing modes and SEC-SSU Interworking
  • SSM and ring architecture
  • Synchronisation of the E1 layer
  • SDH pointers
  • The application of retiming
    Jean-Loup Ferrant,
    Manager For Standards, ALCATEL, France
   
17.55 Closing Remarks
18.00 End of Workshop

This workshop session is planned as a user-focused review of the main reasons why synchronization is important in telecom networks.

All delegates even with a sound knowledge of synchronization, its origins, definitions and practical implementations will benefit from this up-beat presentation. Participants will enhance their knowledge base and fill in some of the gaps.

© Copyright ITSF 2008