Regional ITU Consultation on
Conformance Assessment and
Interoperability for the Africa region
(Nairobi, Kenya, 30-31 July 2010 )
An independent South African
telecoms/ICT view on conformance
testing & interoperability
Paul Inglesby,
Telecoms/ICT Consultant
South Africa
Nairobi, Kenya, 30 – 31 July 2010
Agenda
Introduction to the open standards
based layered architecture
Mapping of the conformance testing
and interoperability (C&I)
requirements and challenges onto
the layered architecture
A recommended step-by-step
approach
Nairobi, Kenya, 30 – 31 July 2010
2
Open standards based layered
architecture
Applications Layer
Session Control Layer
Intelligence and Control
Transport Layer
Transport
Aggregation
Access
Network Management and
OSS/BSS
Enablers and APIs
Data
Centre
Support Systems
Services
Hosted
Services
Transport Layer
Media Gateway
Announcements
B/W Control
Authentication
IP and Core Transmission
Aggregation
ITU-T
SG 16 (MM)
Fixed
Nomadic
ITU-T
SG 15 (T&A)
ITU-T
SG 9 (IBC/TV)
Mobile
G.hn
ITU-T
SG 11+13
SG 12+17
Conformance testing and
interoperability (C&I) in transport layer
Most expensive layer in man-hours
spend (OPEX) for the network
operator
Where C&I will have a major impact
for network operators, in particular,
in the developing countries
A global C&I program will contribute
towards minimising the Total Cost of
Ownership (TCO) for the network
operator
Nairobi, Kenya, 30 – 31 July 2010
5
Session Control Layer
Subscriber Database Management
HSS
SLF
Call / Session Control
P- CSCF I-CSCF S-CSCF
BGCF
ITU-T
SG 11 (P&TS)
SG 13 (FN)
Media Control Functions
MGCF
MRFC
A Converged Architecture Vision
– A 3GPP Rel 7-10 with
TISPAN R1-R3 extensions Converged Functional Architecture,
Interfaces and Protocols
Rf/Ro
IMS Functions
ETSI TISPAN
Functions
SIP
H.248
Diameter
SS7/IP
TDM bearer
AS
AS
ISC/Ma
HSS
HSS
Dx
Cx
Core IMS
Core IMS
Mw
Mw
CCF
CCF
Sh
SLF
SLF
S- CSCF
S-CSCF
Rf/Ro
Dx
Dx
Cx
Cx
IWF
IWF
I- CSCF
I-CSCF
Mw
Mw
Mi
Mi
Mi
Mw
Mw
Mi
Mr
Mr
BGCF
BGCF
Mg
Mg
Ib
Ib
Mw/Mk/Mm
Ic
IBCF
IBCF
Mj
Mj
Gm
P- CSCF
P-CSCF
UE
MRFC
MRFC
MGCF
MGCF
Ie
SGF
SGF
Gq
Gq
Gq
NASS
NASS
SPDF
SPDF
Mp
Mp
RACS
RACS
Ia
Ia
Ia
A- BGF
A-BGF
MRFP
MRFP
T- MGF
T-MGF
Iw
SPDF
SPDF
PSTN/
ISDN
ISDN
SBC IP Transport (Access and Core)
Ia
Ia
I- BGF
I-BGF
SBC
SBC
Other
IP
Networks
NGN architecture overview (Rec. Y.2012)
ITU-T
SG 11 (P&TS)
SG 13 (FN)
Applications
ANI
Management
Functions
Application Support Functions & Service Support Functions
Service Control
Functions
Service User
Profiles
Service stratum
Network Attachment
Control Functions
End-User
Functions
Transport User
Profiles
Resource and
Admission
Control Functions
Other
Networks
Transport Control Functions
Transport Functions
UNI
NNI
Transport stratum
Control
Media
Management
Note: UNI/NNI/ANI are not meant to represent any specific interfaces
Key Features of NGN Convergence
Functions
Legacy
Terminals
Legacy
Terminals
Customer
Networks
NGN
Terminals
End-User
Functions
Applications
Service Stratum
Application Support Functions and
Application
Functions
Service
Support
Functions
S. User
Profile
Function
s
Other NGN Service
Components
PSTN/ISDN Emulation
Service Component
IP Multimedia
Component
IP Multimedia
&PSTN/ISDN
Simulation
Service
Component
GW
GW
Service
Control
Functions
Network Attachment
Network Access
T.User
User
Control Functions
Profile
ProfileAttachment
(NACF)
Functions
Functions
Functions
Access Transport
Network
Access
Functions
Functions
Edge
Functions
Resource and Admission
Control Functions
(RACF)
Core Transport
Core transport
Functions
Functions
Transport Stratum
Broadband
* access
able to provide
IPTV
Media processing to
assist content
delivery
Note: Gateway (GW) may exist in either Transport Stratum or End-User Functions.
Evolution
scenario of
PSTN and
short-term
solution
(Y.2031)
Re-use and
adaptation
of 3GPP IMS
to provide
multimedia
services
(Rec Y.2021)
Other Networks
Network
attachment
(Rec Y.2014)
and
a variety of
mobile and
fixed terminals
and their
profile
management
targeting at
FMC
Service delivery platform making use
of NGN easily
Open Service Environment (OSE)
Y.OSE-arch and capabilities as defined
in Rec Y.2234
A unified IP
network with
improved security
and QoS
(Rec Y.2111)
Border
gateways
enabling
secure
interworking
Conformance testing and interoperability
(C&I) in session control layer
Many SDO/Fora C&I activities, which
does not assist the network operator
Need to have agreement between the
SDO/Fora industries to work towards
one globally acceptable C&I program
Certainly will contribute towards more
efficient network operator businesses
and more cost effective and affordable
telecoms/ICT products and services
Nairobi, Kenya, 30 – 31 July 2010
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Applications Layer
IN / CAMEL
SCP
Parlay AS
IN / CAMEL
Gateway
Parlay
Gateway
Web AS/
SIP AS
Enabler APIs
Presence, Address Book,
Location, Messaging
Convergence of Application/Session Control Layers
with Service Broker, Parlay/OSA API’s Functional Entities
ES 282 007
Services delivered
over NGN based
infrastructure
Telephony services, IP Centrex,
Presence, PoC, VCC, SIP Trunking,
UC/FMC, etc
SIP Application Servers
Services delivered
over legacy based
infrastructure
Services delivered
3rd Party
over the “Open
Service Platform” to Applications
& Services
support 3rd party
applications
Legacy Apps
External
Applications
Intelligent Network
Switching Control Function
SIP AS
OSA AS
IN SCF
Open Service Architecture
OSA API
IM-SSF
UPSF
HSS
OSA SCSOpen Services
SCIM
SLF
User Profile Server Function
Home Subscriber Server
Call Session Control Function
P/I/S-CSCF
IMS Core Network
Subscription
Locator
Function
Non IMS
Core Network
Core Transport Layer
Architecture
Service
Capability
Server
Charging
Functions
Conformance testing and interoperability
(C&I) in application layer
Open standards, open Application
Programming Interfaces (API’s) which
can provide affordable telecom/ICT
services and in particular for
developing countries
A challenge for the C&I program, but
certainly viable in a Converged Telco,
IT and Web domain society
Nairobi, Kenya, 30 – 31 July 2010
13
Convergence of NGN/IMS Network and Devices
and Service Delivery Platforms (SDPs) and
OSS/BSS Integration
Developer
Communities
Common enablers and services
exposing standardised interfaces
Rating
Billing
CRM
INAP
Legacy
Apps
Mediation
OSS/ BSS APIs
IMS
Apps
IDL
SIP
Application
APIs
Parlay/OSA
Apps
OSS
BSS
3rd Party APIs
WSDL
Web/SOA
Apps
Content
Providers
Network APIs
Provision
NGN/IMS Network and Devices
Wireline
Wireless
IP
Service Delivery Platform (SDP) Functional Entities
Developer
Communities
Access
Control
Policy
Mngt.
Application
Registration
Customer
& Partner
Mngt.
App &
Service
Catalogue
Service
Orchestration
FCAPS
FAB
Service
Management
Service Object Repositories
Middleware Systems
INAP
Legacy
Apps
Mediation
OSS/ BSS APIs
IMS
Apps
IDL
SIP
Application
APIs
Parlay/OSA
Apps
OSS
BSS
3rd Party APIs
WSDL
Web/SOA
Apps
Content
Providers
Rating
Billing
CRM
Network APIs
Provision
NGN/IMS Network and Devices
Wireline
Wireless
IP
Support Systems -Mapping of the SDO/Fora
Customer Centric Management
ERP
CRM
Network Service Management
ITU-T
SG 12 QoS
SG 17 Security
ITU-T
SG 5/2
Network Systems Management
Charging & Billing
Call Control
Security
Policy Control
Device and Element Management
Network Equipment Management
Customer Device Management
G.h
n
ITU-T
SG 5/2
Conformance testing and interoperability
(C&I) in support systems layer
Major cost factor for the network
operators from a TCO perspective
A global C&I program that integrates
the Telco, IT and Web domains is
required
Requirement is for managed end-toend products and services in a multitechnology, multi-vendor equipment,
multi support systems environment
Nairobi, Kenya, 30 – 31 July 2010
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Services
Enablers and APIs
Hosted
Services
Data
Centre
Session Control Layer
Intelligence and Control
ITU-T
SG 11+13
SG 12+17
NGSON
P1903
Transport Layer
Transport
Aggregation
Access
ITU-T
SG 15(T&A)
Network Management and
OSS/BSS
Applications Layer
Support Systems
Summary of C&I expectations and challenges
ITU-T
SG 5/2
TR
156
11a,b,g
11n
ITU-T
SG 15
Q4 G.hn
TR
069
196
A recommended step-by-step C&I
implementation strategy
Step 1: There are many C&I industry
role players… utilise what has been
developed, do not duplicate, but
agree to work together
Step 2: Network operators need to
satisfy customer requirements from
an end-to-end perspective – adopt
and deploy one integrated globally
certified C&I process and program
Nairobi, Kenya, 30 – 31 July 2010
19
Thank you for your attention
Paul Inglesby
Telecommunications/ICT Consultant
Consulting services in Converged Telco, IT and Web domain projects
Fixed: +27 12 667 2917
Mobile: +27 82 569 4880
E-mail: paulinglesby@telkomsa.net
Nairobi, Kenya, 30 – 31 July 2010