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A Framework for Internet Program Guides . Yuji Nomura ( nom@flab.fujitsu.co.jp) Fujitsu Laboratories Ltd. Henning Schulzrinne ( hgs@cs.columbia.edu ) Columbia University. Introduction. draft-nomura-mmusic-pguide-requirements-00 Unicast retrieval, possible content format

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a framework for internet program guides

A Framework forInternet Program Guides

Yuji Nomura (nom@flab.fujitsu.co.jp)

Fujitsu Laboratories Ltd.

Henning Schulzrinne (hgs@cs.columbia.edu)

Columbia University

introduction
Introduction
  • draft-nomura-mmusic-pguide-requirements-00
    • Unicast retrieval, possible content format
  • draft-nomura-cdi-mmusic-mupdate-00
    • describes protocol, notifications for unicast
  • Last meeting in Yokohama
    • Framework document discussion 
      • Include multicast model
      • Keep content format open
framework draft
Framework Draft
  • draft-nomura-mmusic-pguide-framework-00:
    • unicast and multicast model
    • synchronized and unsynchronized model
    • data model
    • does not recommend specific formats and protocols
open issues
Open Issues
  • Make working group item?
    • Potential applications:
      • DVB-IPI
      • service guides for cell phones
      • content distribution networks
      • Mbone-style seminars and content
  • Revise requirement draft
    • include both unicast and multicast model
  • Naming: Internet {Program, Service, Content} guide?
  • Appropriate protocol for announcement
    • Multicast: SAP
    • Unicast: SIP event notification
  • Appropriate description format:
    • Just one format or multiple (“multipart”)?
    • Is SDPng sufficient?
    • Media content vs. communications information
    • MPEG-7 already well-developed