Giulio Maggiore Domenico Fabbri

1
IMS Network Integration Testing Infrastructure

• Giulio Maggiore Domenico Fabbri
• TIM
• Network
• Core Trunking Network
• Testing
• UMTS GPRS VAS IN

ETSI MTS40 Berlin 16th March 2005
2
Agenda

• Wi scope
• Timing
• Step so far
• Into the document
• Conclusions

3
Scope of the WI
4
Timing6 months
5
Step so far

• New wi proposal at MTS 39
• Wi approved on 13th of January 2005
• LS on IMS Network Integration Testing
  Infrastructure to 3GPP CN, T, SA ETSI TISPAN
• The ETSI Member organisations supporting the wi
  are
• TIMFrance TelecomOrange FrNokiaSiemensFokus
• Kick off meeting in Rome January, 21st. with 6
  participants from 5 companies (Fokus Fraunhofer,
  Testingtech, Siemens, TILab e TIM)
• TR stable draft available for approval on the
  ETSI server, February the 15th

6
Outline

• Global Network Architecture
• IMS Architecture
• Testing Tipologies
• Scope of Testing
• Proposed Configurations
• Conclusion

7
Global Network architecture
8
IMS Architecture
9
Testing Typologies
10
Scope of Testing
Verify the IMS core-network through the usage of
a set of reference end-to-end scenarios
(including roaming users) and the analysis of
signalling on the network interfaces that are
involved Gm, Cx, Mw, Mi, Mj, Mk, Mg, Mn, Rf, Go.

• Verify the procedures conformity to the standard
• Reduce the time to market of new network solutions

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Configurations

• Home network - P-CSCF discovery
• Home network - Mobility Management
• Home and Visited network - Mobility Management
• Home network Session Control Enhanced
  Multimedia services
• Home and Visited network - Session initiation
  control
• Home network CS originating session
• Home network IMS originating session
• IMS network and CS network from different
  operator IMS originating session
• IMS network and CS network from different
  operator CS originating session
• IMS network - Charging

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IMS Reference Points

• Gm CSCF-UE SIP IETF RFC 3261 3GPP TS 24.229
• Mw CSCF-CSCF SIP IETF RFC 3261 3GPP TS 24.229
• Cx HSS-CSCF Diameter 3GPP TS 29.229
• Mi CSCF-BGCF SIP IETF RFC 3261 3GPP TS 24.229
• Mj BGCF-MGCF SIP IETF RFC 3261 3GPP TS 24.229
• Mc/Mn MGCF-MGW H.248 ITU-T Recommendation H.248
  3GPP 29.232
• Mk BGCF-BGCF SIP IETF RFC 3261 3GPP TS 24.229
• Mg MGCF-CSCF SIP IETF RFC 3261 3GPP TS 24.229
• Rf CSCF-CCF Diameter IETF RFC 3588 "Diameter
  Base Protocol
• Go PEP-PDF (GGSN - P-CSCF) COPS 3GPP TS 29.207

13
P-CSCF discovery
IMS network configuration only for testing P-CSCF
discovery procedure.
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Mobility Management
End-to-End Methodology
DNS
I-CSCF
HSS
Cx
Mw
GGSN
Mw
P-CSCF
Cx
BSS GERAN
Gm
Mw
Gn
SGSN
RNC ULTRAN
Um
S-CSCF
Iu-PS
UE
Configuration requiring one IMS Home network for
testing Mobility management procedures
(Registration, Deregistration, Authentication,
User subscription and Network initiated
procedures).
15
Mobility Management between two network operator
IMS configuration requiring Home and Visited
network for testing Mobility management
procedures in case of roaming users (Network
initiated deregistration, User not allowed to
roam). Mw is intended between P-CSCF (Visited)
and both I-CSCF and S-CSCF (home).
16
Session Control Enhanced Multimedia services
IMS configuration requiring two user located in
the same home network for testing - Session
setup and Session control procedures (Session
initiation, Session Release, Network initiated
release procedures, Unsuccessful session handling
like user busy, rejected session, user not
registered or unreachable) - Enhanced Multimedia
services (Session hold and resume, handling of
privacy, codec and media flow negotiation,
session redirection and session transfer in case
of three user)
Service Based Local Policy
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Session Initiation Control between different
network operator
IMS configuration requiring two user located in
different home network to test interoperability
in case of Session setup and control procedures.
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CS originating session to IMS domain single
operator
IMS network and CS network from a single operator
to test CS originating session setup toward IMS
user.
19
IMS originating session to CS domain single
operator
IMS network and CS network from a single operator
to test IMS originating session setup toward CS
network.
20
IMS originating session to CS domain different
operators
IMS network and CS network from different
operator to test the interworking in case of IMS
originating session setup toward CS network.
21
CS originating session to IMS domain different
operators
IMS network and CS network from different
operator to test the interworking in case of CS
originating session setup toward IMS user.
22
Charging
CDR generation in case of roaming user. In case
of the user is located in its home network the
CDRs will be collected by the same CCF.
23
Conclusions

• The purpose of this job is to define a Technical
  Report as a common base for IMS testing, in terms
  of
• Testing methodologies
• Proposed configurations