GRUPPO TELECOM ITALIA II II II II- - - NNI in the 3GPP standard NNI in the 3GPP standard NNI in the 3GPP standard NNI in the 3GPP standard 3GPP release 8 IMS Implementation, Deployment and Testing Sophia Antipolis, France II II II II- - - NNI in the 3GPP standard NNI in the 3GPP standard NNI in the 3GPP standard NNI in the 3GPP standard Antonio Ascolese, Telecom Italia
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
GRUPPO TELECOM ITALIA
IIIIIIII----NNI in the 3GPP standardNNI in the 3GPP standardNNI in the 3GPP standardNNI in the 3GPP standard
3GPP release 8 IMS Implementation, Deployment and TestingSophia Antipolis, France
IIIIIIII----NNI in the 3GPP standardNNI in the 3GPP standardNNI in the 3GPP standardNNI in the 3GPP standard
Antonio Ascolese, Telecom Italia
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
Main focus
► The need to have IMS NNI profile, with the starting point outside 3GPP or the
starting point in 3GPP
► Main aspects introduced in Rel-8, Rel-9 and Rel-10
► Examples of nowadays applications of II-NNI profile
Antonio Ascolese
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
The need to have II-NNI
Antonio Ascolese
The need to have II-NNI
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
Drivers for IP interconnection
► The starting point to define IP interconnection is the IETF RFC 3261 (SIP:
Session Initiation Protocol )
► Hovever the document describes the signaling protocol to be used, but many
implementations in order to provide IP services (telephone calls, multimedia
distribution, multimedia conferences, etc.) are possible
► The need to have a common and shared SIP profile between different
networks (and operators) grows in the evolution framework toward fixed &
Antonio Ascolese
networks (and operators) grows in the evolution framework toward fixed &
mobile all-ip networks
► Drivers of this evolution are
► Telephony � VoIP
► TDM � IP transport
► ISUP � SIP
► enabling new IP services: Video, Presence, IPTV, Messaging, ...
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
IP interconnection: some of the involved SDOs
Service
Internet
(Unmanaged)
ISP/ASP
Antonio Ascolese
NGN
Service
Operator
Service
Layer
Transport
Layer
NGN
Service
Operator
Service
Layer
Transport
Layer
Managed IP interconnection
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
ITU-T
► Q.3401 (Q.NNI_profile): NNI profile based on SIP
IP Phone
ProviderB
ProviderA
VoIP
Wireless
LogicalInterfaces
ServiceControl Functions
ServiceControl Functions
This interfaceis the scope of this Recommendation
Antonio Ascolese
IP Phone
BVoIP
VoIP
PSTN PSTN
MG MGSS7
SS7
Wireless
Bearer (RTP/IP)Signall (SIP)
TransportFunctions
TransportFunctions
3GPP release 8 IMS Implementation, Deployment and Testing
II-NNI in the 3GPP standard
ITU-T
► The Q.3401 recommendation contains a service-level profile, i.e. SIP/SDP
interface description, between two network operators (NNI signalling profile),
where the two different network operators may support different SIP/SDP
profiles (i.e. they differ in terms of the SIP extensions, SIP information
elements, and SDP lines which are supported)
► The proposed profile is derived from the IETF RFC SIP profile (RFC 3261)
Antonio Ascolese
The proposed profile is derived from the IETF RFC SIP profile (RFC 3261)
► The defined NNI is essentially based on
► voice services
► basic profile (no supplementary services)
3GPP release 8 IMS Implementation, Deployment and Testing