colombo, sri lanka, 7-10 april 2009 developing physical architecture of ngn- a methodology r. k....
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![Page 1: Colombo, Sri Lanka, 7-10 April 2009 Developing Physical Architecture of NGN- a methodology R. K. Siddhartha Director, Dept. of Telecommunications, INDIA](https://reader036.vdocuments.us/reader036/viewer/2022062515/56649d035503460f949d69ab/html5/thumbnails/1.jpg)
Colombo, Sri Lanka, 7-10 April 2009
Developing Physical Architecture of NGN- a methodology
R. K. Siddhartha Director,
Dept. of Telecommunications, INDIA
FORUM ON NEXT GENERATION STANDARDIZATION
(Colombo, Sri Lanka, 7-10 April 2009)
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NGN -Interoperability is crucial
“A packet based network able to provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies and in which service related functions are independent from underlying transport related technologies. It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users”
-Ref. ITU-T Y.2001
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ITU mark program
a Catalyst for Interoperability standards in ITU Recommendations - intrinsic interoperability in standardsCan be feedback mechanism for fixing up standards for including attributes of interoperability Boost to indigenization of the Telecom EquipmentsEnhance Knowledge creation processIncrease Competitiveness
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Resolution 76
that providing for interoperability should be the ultimate aim of future ITU-T Recommendations
Considered : the difficulties of equipment level interoperability
Noted : need to assist developing countries in facilitating solutions which will exhibit interoperability and reduce the cost of systems and equipment procurement by operators
Instructed : Study Groups to identify ITU recommendations in light of interoperability
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Paradigm Shift !
Resolution76
Physical Entity
ITU MarkEq
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Functional Architecture
[Ref. ITU-T Y.2012]
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Need for Physical Architecture
Physical architecture will decrease interoperability risk
Achieving seamless interoperability at the basic-level is crucial
Functional architecture is for Implementers/ developers not for Operators & N/W designers
Modular Architecture- -Implementation/ Deployment ease -Vendor independence -Optimize investment
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Functional Entities
[Ref. ITU-T Y.2012]
S-1: Serving call Session control FE
S-13: MediaResource Control FE
S-6: S Authentication& authorisation FE
Application support functions & service support function
S-14: MediaResource broker FE
S-5: Service user profile FE
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Reference Points & Interfaces
Ref. points (Service control functions)
S-1 (S-CSC-FE) - S-13 (MRC-FE) -----------------SIPSIPS-1 (S-CSC-FE) - S-5(SUP-FE), S-6(SAA-FE)---- DiameterDiameter
Reference points (ASF/SSF)
S-1 (S-CSC-FE) - ASF/SSF---------SIPSIPS-5 (SUP-FE) - ASF/SSF------------DiameterDiameterS-6 (SAA-FE) – ASF/SSF-----------DiameterDiameterS-13 (MRC-FE) – ASF/SSF---------SIP, HTTP, VoiceXML, SIP, HTTP, VoiceXML,
MSCMLMSCMLS-14 (MRB-FE) – ASF/SSF---------SIP, HTTP, SOAPSIP, HTTP, SOAP
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Functional Entities-Physical Entities
S-1: Serving call session control FE (S-CSC-FE)S-5: Service user profile FE (SUP-FE)S-6: Service authentication & authorisation FE (SAA-FE)S-13: Media resource control FE (MRC-FE)S-14: Media Resource broker FE (MRB-FE)Application support functions and service support functions
Proxy & Registrar Proxy & Registrar ServerServer
Home Subscriber Server Home Subscriber Server (HSS)(HSS)
Media ServerMedia Server
Application ServerApplication Server
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A Section of Possible Physical Architecture of NGN for Interop
IOPtI
IOPtIII
IOPtII
To other Physical Entities Of NGN Network
To other Physical Entities of NGN network
HomeSubscriberServer
Application Server
Proxy &Registrar Server
MediaServer
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Interop Req. for Application Server
Total of Three Interfaces
IOPt for
Application Server
+ += IOPt I
IOPt II
IOPt III
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Vertical Cut
Protocols IOPt
PHY---
API
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Types of Application Server
towardsnetworkUsing OSA
towardsnetworkUsing CAMEL
SIP AS OSA-SCS IM-SSF
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Y.phy_arch_ngn
““Architectural realizations and open Architectural realizations and open interfaces in NGN”interfaces in NGN”Recommendation for InteroperabilityBasic Physical architecture showing physical elements of NGNOpen interfaces are spelled for each element
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Proposed Structure Y.phy_arch_ngn
Four tier document
Each protocol dressed up for Interoperability
Each Interface with vertical cut layers
Each element defined for Interoperability
Physical Architecture of NGN
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ITU Mark & Y.phy-arch-ngn
Can be a Seed document for Interoperability Standards & testing in NGN Target – 50% of elements of NGN are standardized as physical entities it can help achieving objectives of NGN (Y. 2oo1)Digital Opportunity Index will be improved in developing countries
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Thank You !Thank You !