IMT-2000 Steering Group - Information -

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IMT-2000 Steering Group- Information -
SA1 7 February 9-11, 2000 Sophia Antipolis
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TOP Priority Issues

• Among other issues, the IMT-2000 Steering Group
  of the GSMA has decided to prioritize the
  following two issues
• inter-network handover, especially inter-network
  soft handover,
• realistic implementation of NNI.

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Inter-network Handover

• What is to be done to provide inter-network
  handover with R00?
• Inter-network soft handover has already been
  endorsed by SA6.
• GSMA would like to have all kind of inter-network
  handover with R00.

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ITU Press Release December 1999
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UMTS Forum Requirements
Phased introduction of the IP technology in the
UMTS system. As an example UTMS Forum has
identified four possible phases
Phase 1 IP as the technology to be used in the
interconnection of 3G networks (i.e., NNI) Phase
2 IP introduced within the UMTS Core Network,
down to and including the Radio Network
Controller Phase 3 IP introduced also within the
RAN, down to the Node B Phase 4 IP down to the
terminal, over the radio interface
Source 3GPP TSG SA6, Tdoc 599
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UWCC Requirements
Source 3GPP TSG SA6, Tdoc 599
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Which NNIs?
IETF
3GPP2
3GPP
Mobile IP ?
ANSI-41
ANSI-41
GSM MAP
GSM MAP
IP
IP
ANSI 7
ITU 7
IP