Session 7 Highlights

1
Session 7Highlights Conclusions

• Alain LE ROUX
• France Telecom

2
Session 7 NGN oriented solutions and plans

• Presentation 1 NGN complementing the Internet
  for converged networks (Cisco Systems)
• NGN based on IP related or friendly Transport
  technologies
• to deliver Carrier class (i.e. reliable secure)
  and Business class Internet services
• Presentation 2 The 21st Century Network -
  Standards requirements (BT)
• More services over a converged network with fewer
  network elements
• Several critical standards areas and some highest
  priority standards requirements identified
• Presentation 3 Cable networks on the NGN road
  IPCablecom and PacketCableTM Technologies and
  Development status (CableLabs ECCA)
• Cable IP-based QoS enabled Multimedia service
  platform (XoIP)
• VoIP trials ongoing and commercial rollout
  planned in near future

3
Session Highlights

• NGN service rich packet-based modular platform,
  access agnostic
• Service convergence over IP, end-to-end (IP/MPLS)
  packet intelligence and deterministic traffic
  handling
• With open standard interfaces between service
  control and Platforms
• Interworking with legacy networks/services and
  Internet applications
• Integrated OSS and Web-based management
  provisioning
• Interconnections between Network domains/carriers
  for IP based services are becoming important
• Radical network convergence to fewer networks and
  systems carrying more services, converging in
  from the edge
• Cable Networks towards NGN PacketCable 1.x and
  PacketCable Multimedia specifications (all issued
  or about to)

4
Session Issues

• NGN business model requires rethinking legacy
  paradigms
• Need to ensure VoIP/VoATM/PSTN interworking
• SIP-BIC-ISUP interworking is currently a high
  priority. BICC adopted in UMTS UTRAN, but which
  role in fixed networks?
• More important to converge in access and backhaul
  (where capex opex are most significant) than in
  core
• Fewer network elements (supporting more
  capabilities), all with distributed intelligence,
  security, VPN OSS functionality
• Is that compatible with distributed and separated
  transport-session-service control ?
• Cable Networks access specific or fully network
  specific systems?
• Why does SIP-based Call Network Signalling (CNS)
  need to be specific? Which interfaces could be
  common to xDSL/Fiber NGN access ?

5
Conclusions Recommendations

• Consensus on NGN being IP-based Multimedia
  enabled. Many (too many?) specifications/Standards
  emerging and products appearing on the market
  for access-backhaul-core segments
• But do they fulfil Operators/Service Providers
  requirements?
• How to ensure that all the pieces of the puzzle
  fit together and interoperate?
• What about building NGN over 3G architecture
  interfaces with necessary extensions/adaptations
  to accommodate wireline and fixed wireless access
  ?
• Recommendation to avoid multiple different
  architectures and interface solutions for similar
  requirements (e.g. mobility mgnt, session
  control, resource QoS control)
• Analyse system architectures and identify common
  (edge, core) requirements
• Identify extensions to existing specs required
  for xDSL fiber NGN access
• Agree on the standards critical areas (with
  Framework harmonisation with Mobile Cable e.g.
  for Architecture, Signalling, Security, QoS, OSS
• Identify evolution scenarios and steps, and
  prioritise standards requirements