Institute of Public Utilities, Michigan State University 2013 Annual Regulatory Studies Program Enabling Architectures Protocols and Frameworks For Today s Service Provider Networks ETC GROUP, LLC David J. Malfara, Sr.
Protocols & Frameworks Agenda Network Evolution: Beyond the OSI Model IMS A New Control Layer Applications: Network-centric or OTT? Discussion - Futures 2013 ETC Group, LLC 2
Operational View Old World Monolithic Stovepipe Structure New World Layered Next-Gen Structure Voice Internet Private/VPN Networking Drivers Outcome Maintenance Administration Maintenance Administration Maintenance Administration Flat Growth of Voice Market Service/Application Layer New Service Opportunities Service Provisioning Account Provisioning Service Provisioning Account Provisioning Service Provisioning Account Provisioning Massive Growth of Data Traffic OSS/BSS Control Layer New Efficient OAM&P Order Processing Sales/Vendor BSS Order Processing Sales/Vendor BSS Order Processing Sales/Vendor BSS Maturity of Convergence Technology Transport Layer New Network Architecture 2013 ETC Group, LLC 3
Service Provider Nirvana 2010 SeaChange 2013 ETC Group, LLC 4
Competing Models OSI vs. NGN 2013 ETC Group, LLC 5
The Encapsulation of Functions in a Packet Architecture (OSI Model) 2013 ETC Group, LLC 6
Comparing TDM to VoIP The OSI Reference Model TDM VoIP 2013 ETC Group, LLC 7
Current Option : TDM Interconnection Competitor RBOC Every Access Tandem Every LATA 2013 ETC Group, LLC 8
TDM Interconnection (Dedicated High Cost CapEx and OpEx) TDM Minimum Interconnection Points LATA 1 IP Network IP Soft Switch Signaling Gateway Media Gateway IP Media Gateway Media Gateway LATA 2 LATA 3 IP Media Gateway Media Gateway LATA 4 LATA 5 User End Points 2013 ETC Group, LLC 9
VoIP-to-TDM Interconnection Transition Media Gateway: TDM/IP (Circuit to Packet) Signaling Gateway: SS7/SIP (Packet to Packet) 2013 ETC Group, LLC 10
Inter-carrier VoIP Call Interconnection Using SBC Functionality 2013 ETC Group, LLC 11
Multimedia Networks 2013 ETC Group, LLC 12
Evolution OSI to IMS-enabled NGN OSI MODEL NGN MODEL Application Presentation Session Transport Network Data Link Physical Application Control Transport 2011 ETC Group, LLC 2013 ETC Group, LLC 13
IMS A New Control Layer Converging Network Intelligence 2013 ETC Group, LLC 14
IMS - Industry Adoption 3GPP (3 rd Generation Partnership Project including ATIS) IETF (Internet Engineering Task Force) European Telecommunications Standards Institute (TISPAN) ITU-T (ITU-Telecommunications Standardization Sector) CableLabs (PacketCable 2.0) 2013 ETC Group, LLC 15
IMS-enabled Convergence 2013 ETC Group, LLC 16
IP Multimedia Subsystem Radvision 2013 ETC Group, LLC 17
CableLabs PacketCable 2.0 Reference Architecture 2013 ETC Group, LLC 18
ETSI TISPAN IMS-Oriented NGN Architecture 2013 ETC Group, LLC 19
IMS Prerequisites The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. IMS Terminal IP Connectivity Access Network IMS Network Provider 1. Establishment of an IMS service contract 2. Getting IP access connectivity Acquiring an IP address 3. P-CSCF address discovery 4. IMS level registration 2013 ETC Group, LLC 20
IMS Registration The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. IMS Terminal P-CSCF I-CSCF HSS S-CSCF (1) REGISTER (10) 401 Unauthorized (2) REGISTER (9) 401 Unauthorized (3) Diameter UAR (4) Diameter UAA (5) REGISTER (6) Diameter MAR (7) Diameter MAA (8) 401 Unauthorized (11) REGISTER (12) REGISTER (13) Diameter UAR (14) Diameter UAA (15) REGISTER (16) Diameter SAR (20) 200 OK (19) 200 OK (18) 200 OK (17) Diameter SAA 2013 ETC Group, LLC 21
Session Setup (1) The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. Originating Visited Network Originating Home Network Terminating Home Network Terminating Visited Network IMS Terminal #1 Resource Reservation P-CSCF (1) INVITE (2) 100 (3) INVITE Trying (4) 100 Trying Evaluation of initial filter criteria (20) 183 Session Progress (21) PRACK (30) 200 OK (31) UPDATE (40) 200 OK (19) 183 Session Progress (22) PRACK (29) 200 OK (32) UPDATE (39) 200 OK S-CSCF (5) INVITE (6) 100 Trying (18) 183 Session Progress I-CSCF (7) Diameter LIR HSS (8) Diameter LIA (9) INVITE (10) 100 Trying (17) 183 Sesssion Progress (23) PRACK (28) 200 OK (33) UPDATE (38) 200 OK S-CSCF Evaluation of initial filter criteria (11) INVITE (12) 100 Trying (16) 183 Session Progress (24) PRACK (27) 200 OK (34) UPDATE (37) 200 OK P-CSCF (13) INVITE (14) 100 Trying (15) 183 Session Progress (25) PRACK (26) 200 OK (35) UPDATE (36) 200 OK IMS Terminal #2 Pre-alert user Resource Reservation Alert user 2013 ETC Group, LLC 22
Session Setup (2) The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. Originating Visited Network Originating Home Network Terminating Home Network Terminating Visited Network IMS Terminal #1 P-CSCF S-CSCF I-CSCF HSS S-CSCF P-CSCF IMS Terminal #2 (46) 180 Ringing (45) 180 Ringing (44) 180 Ringing (43) 180 Ringing (42) 180 Ringing (41) 180 Ringing Alert user (47) PRACK (48) PRACK (49) PRACK (50) PRACK (51) PRACK (56) 200 OK (62) 200 OK (55) 200 OK (61) 200 OK (60) 200 OK (54) 200 OK (59) 200 OK (53) 200 OK (58) 200 OK (52) 200 OK (57) 200 OK Accept session (63) ACK (64) ACK (65) ACK (66) ACK (67) ACK Media plane 2013 ETC Group, LLC 23
Applications & Service Creation Network-centric or OTT? 2013 ETC Group, LLC 24
IP Multimedia Subsystem Radvision 2013 ETC Group, LLC 25
IMS HSS User Profile The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. User Profile Private User Identity 1 to n Service Profile n Service Profile 2 Service Profile 1 1 to n Public Identification n Public Identification 2 Public Identification 1 0 to n Initial Filter Criteria n Initial Filter Criteria 2 Initial Filter Criteria 1 0 to n Shared Initial Filter Criteria n Shared Initial Filter Criteria 2 Shared Initial Filter Criteria 1 2013 ETC Group, LLC 26
IMS Application Server Initial Filter Criteria The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. Initial Filter Criteria Priority 0 to 1 Trigger Point Trigger Point 1 to n Service Point Trigger Service Point Trigger Service Point Trigger Request-URI SIP Method SIP Header Session Case Session Description Application Server SIP URI Default Handling Service Information 2013 ETC Group, LLC 27
IMS Application Server Service Announcement Example The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. 2013 ETC Group, LLC 28
IMS Application Server Multi-service Session The 3G IP Multimedia Subsystem (IMS), Third Edition Gonzalo Camarillo and Miguel A. García-Martín 2008 John Wiley and Sons, Ltd. 2013 ETC Group, LLC 29
Service Configuration in the IMS (Open Mobile Alliance -XDM) IMS Services Presence Location Instant Messaging Conferencing Multimedia Session Continuity 2013 ETC Group, LLC 30
Over The Top & IMS Are NOT (exactly) Mutually Exclusive 2013 ETC Group, LLC 31
Future Applications Using IMS Enablers Broadcast with Awareness Workflow Conferencing Co-existent Location based Sharing Location-based Advertising 2013 ETC Group, LLC 32
Questions? dmalfara@etcgroup.net ETC GROUP, LLC David J. Malfara, Sr.