Upgrading NGN to support MultiMedia CTIA07 AHCIET Summit Dan Bantukul Tekelec Inc'

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Upgrading NGN to support Multi-MediaCTIA07 -
AHCIET SummitDan BantukulTekelec Inc.
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Agenda

• Current NGN architecture
• Introducing NGN core signaling framework concept
• Analysis Tekelec SSR SIP (layer 5) routing
• Benefits of SSR to NGN

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Current NGN is voice centric
IP Cloud
PSTN Region
PSTN Region
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Issues associated with current NGN
Business Impact
Technical Issue
Difficult to support media other than voice
Voice Centric Soft-switch Voice based routing
architecture
Increased provisioning cost/complexity with
potential impact on service quality
User data Management user data scattered across
network
Requires extensive and costly billing mediation
infrastructure as well as potential for lost
revenue
Billing data scattered across the network
Vendor lock-in may result in higher cost, high
cost of IOT if multi-vendor approach is taken
Interoperability degree of logical connectivity
makes multi-vendor environment problematic
Scalability routing complexity increases as the
number of route-aware edge devices increases
Increased operational cost due to complexity
High cost of eventual migration or rip and
replace
IMS Migration No clear migration path
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Supporting Multi-Media payload

• The following options may be considered when
  supporting multi-media payload

1.) Vertical Implementation
- No Reusability, High startup and on-going
operation cost
2.) Overlay IMS network
- Risky, High startup cost, difficult to make
business cases
3.) Upgrading current NGN network
- Cost effective and provides smooth migration
- Opportunity to resolve various issues exists in
current implementation
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Needs a dedicated core signaling framework
PBX
VoIP End-Point
SIP PBX
IAD
SIP AS (B2BUA)
VoIP
Edge Proxy
A/Abis
MG
RAN
SBC
A/Abis
MSC Server
VoIP
MG
RAN
Edge Proxy
Core Signaling Framework is required for a robust
and scalable NGN network

• Most VoIP networks have been constructed without
  a signaling framework!

SBC
VoIP
PSTN
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Current NGN implementation
SIP AS
SIP AS
MSC Servers
IP PBX

• IP layer routers
• IP routing protocols
• IP QoS controls

SIP End-Points
PSTN GW
softswitch
Multi-Media Servers
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NGN mapping to OSI model
OSI
NGN Protocols
Routing Methods/Protocols
Addressing
Layer 7 Application
Video, Voice, Data IM etc.
Application Name
Human, GUI icons etc.
Layer 6 Presentation
Internal API
SDP
Application context
Intelligent
Layer 5 Session
URI
DNS, ENUM
SIP
Layer 4 Transport
Ports
Internal API
TCP/UDP SCTP
Transport
Layer 3 Network
IP Routing Protocols such as OSPF, IS-IS, BGCP
etc.
IP Address
IP
Layer 2 Data Link
MAC Address
Point-to-Point only
Ethernet
Layer 1 Physical
802.x
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IP routers works on OSI layer 3 network layer
Layer 7 Application
Layer 7 Application
Layer 6 Presentation
Layer 6 Presentation
? SIP routing
Layer 5 Session
Layer 5 Session
Layer 4 Transport
Layer 4 Transport
Routing Protocols
Routing Engine
Routing Engine
Layer 3 Network
Layer 3 Network
Layer 3 Network
Layer 3 Network
Layer 2 Data Link
Layer 2 Data Link
Layer 2 Data Link
Layer 2 Data Link
Layer 2 Data Link
Layer 2 Data Link
Layer 1 Physical
Layer 1 Physical
Layer 1 Physical
Layer 1 Physical
Layer 1 Physical
Layer 1 Physical
Softswitch
IP switches/routers
IP switches/routers
Softswitch
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SIP Signaling Router Layer 5 router
Layer 7 Application
Layer 7 Application
Layer 6 Presentation
Layer 6 Presentation
Layer 5 Session
Layer 5 Session
Layer 4 Transport
Layer 4 Transport
Layer 3 Network
Layer 3 Network
Layer 2 Data Link
Layer 2 Data Link
Layer 1 Physical
Layer 1 Physical
Softswitch
Softswitch
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NGN with multi-media session support
SIP AS
SIP AS
MSC Servers
IP PBX

• IP layer routers
• IP routing protocols
• IP QoS controls

SIP End-Points
PSTN GW
Session Setup URI routing Service
Orchestration IOT point
softswitch
Multi-Media Servers
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Multimedia session setup
Media Server
SSR
Media Path (RTSP)
SSR
SIP Path
SSR
SSR
Media Path (RTP)
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Closely align to IMS models

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Session Management
Session Management
SIP Signaling Router
P-CSCF
S-CSCF
I-CSCF
P-CSCF
S-CSCF
I-CSCF
3GPP IMS
NGN
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Migration or Interworking with IMS
An IMS subscriber Uses NGN services
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Summary

• Current NGN network is fairly voice centric
• Tekelec believes that a signaling framework is
  required for supporting Multi-Media content
  delivery
• SSR augments existing NGN architecture by
  providing layer 5 SIP processing Bearer
  Independent Signaling Framework
• SSR provides solid foundation for NGN to evolve
  to and interwork with IMS technologies

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• Q A