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Summary on NGN - IMS Relationships. Rainer Münch (Alcatel) TISPAN WG3 Vice Chairman TISPAN F-MMS Project Leader r.muench@alcatel.de. Agenda. Approval of agenda and Documents (s1) Workshop objectives (s1) 3GPP and TISPAN organisation (s1) NGN Architecture & Release 1 definition (s2)
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Summary on NGN - IMS Relationships Rainer Münch(Alcatel) TISPAN WG3 Vice Chairman TISPAN F-MMS Project Leader r.muench@alcatel.de TISPAN-3GPP Workshop - Sophia-Antipolis
Agenda • Approval of agenda and Documents (s1) • Workshop objectives (s1) • 3GPP and TISPAN organisation (s1) • NGN Architecture & Release 1 definition (s2) • IMS architecture and capabilities (s2) • Issues related to reuse of IMS for NGN (s3-s4) • Support of PSTN/ISDN service emulation (s5) • Ongoing activities and Workplan (s5) • Future cooperation/interactions (s6) • Wrap-up and closure (s6) TISPAN-3GPP Workshop - Sophia-Antipolis
Types of Work • Three types of work have been identified • TISPAN only • No modification to 3GPP documents (can be taken over unchanged for TISPAN-NGN Release 1) • Joint work between TISPAN and 3GPP • On a case-by-case basis, it will be decided where and how the agreements shall be documented. TISPAN-3GPP Workshop - Sophia-Antipolis
TISPAN Only • PSTN/ISDN emulation • Network Attachment Subsystem • Resource and Admission Control Subsystem (jointly as well?) • Routeing function • In addition to identify and address S-CSCF • There is a requirement to identify and address all TISPAN-NGN elements of an operator's domain for routeing purposes. TISPAN-3GPP Workshop - Sophia-Antipolis
No Modification to related specifications from 3GPP • It is expected that the following functions can be taken unchanged from 3GPP-IMS • I-CSCF • MRFC, MRFP • Does 3GPP intend to specify an open interface between MRFC and MRFP? • TISPAN see some benefit in having an open interface. TISPAN-3GPP Workshop - Sophia-Antipolis
Potential Joint Workbetween TISPAN & 3GPP • S-CSCF • P-CSCF • MGCF • HSS • SLF • Charging/Accounting • IBCF (new, introduced by TISPAN) • On a case-by-case basis, it will be decided where and how the agreements shall be documented. TISPAN-3GPP Workshop - Sophia-Antipolis