NGN standardization activities in ITU-T- Global interoperability for NGN deployment -
Kaoru KenyoshiVi h i f ITU T SG11Vice-chairman of ITU-T SG11
NEC Corporation
13 September 2010 1
Contents
1. Introduction1. Introduction2. Current status on NGN
standardization & Future Directionstandardization & Future Direction3. Activities to improve interoperability4 Conclusion4. Conclusion
13 September 2010 2
Contents
1. Introduction1. Introduction2. Current status on NGN
standardization & Future Directionstandardization & Future Direction3. Activities to improve interoperability4 Conclusion4. Conclusion
13 September 2010 3
Relationship of NGN Standard OrganizationsGlobal Standard body
Final discussion to setglobal standards
y
Adopting IMS into NGNmaking consensus in Asian
region before ITU-T Supporting TISPAN in NGN standardization
Regional Standard body
CJK&ASTAP
l i f
De-facto Standard in industry
Developing IMS for 3G network
Developing IP&SIP
13 September 2010 4FG-NGN (Focus Group on NGN) ETSI (European Telecommunications Standards Institute), ATIS (Alliance for Telecommunications Industry Solutions) CJK (China, Japan, Korea)TIA(Telecommunications Industry Association ) IETF (The Internet Engineering Task Force)
p g
Vigorous activity to standardize NGN• Since 2003, a study group dedicated to NGN has been organized in each standards body.
• The 2nd release documents were prepared by ITU-T in 2009.
Invented “SIP” for voice and video
communication on the Internet
Supports TISPAN and focuses on filling the gaps and promoting implementation (IP interoperability, triple play)
Final discussions to create global
standards
CJK
standards
CJKIs the pioneer in studying all-IP networks, and has
completed “IMS” for
TISPAN leads global discussions on NGN, and
adopted IMS for fixed
Rich experience in VoIP and broadband, which
helps generate
13 September 2010 5SIP: Session Initiation protocol IMS: IP Multimedia Subsystem
pmobile
p p gconsensus in Asia
Timeline of NGN Standardization• Thirteen ITU-T recommendations about NGN basic concepts were published in Jul. 2006.• In Jan. 2008, the core part of NGN Release 1 was completed for practical purposes.• NGN specific services, such as IPTV, FMC, etc., are being discussed now.
2003 2005 2006 2007 20082004
▲NGNNTT’s NGN
Dec 2006 ~ Mar 2008~
Field trial Commercial service2009
Service requirements and
SG13
Release 1 Release 2ITU-T
FG-IPTV(2006/4-2007/11)
FG-NGN(2004/5-2005/12)
Concept
▲NGNWorkshop(Jul. 2003)
Dec. 2006 Mar. 2008
Future Network
Structureq
architecture13
Signaling protocolsSG11
Co cep
Release 3
Signalingprotocols
Release 2
Early 2006 ~ mid 2008ETSI TISPAN End of 2003~early 2006
Release 1
Common IMS
Release 3
13 September 2010 63GPP
~ end of 2004
Release 6
~ mid 2007
Release 7
~ end of 2008
Release 8
IETF ▲SIP standard RFC3261(Jun. 2002)
• At Sept 2009 in addition to session based basic communication services which
NGN capability set 2 (Y.2007)• At Sept. 2009, in addition to session-based basic communication services which
were summarized in Y.2006, ITU-T Recommendation Y.2007 was established for providing IPTV basic service (linear TV and VoD).
• A capability set Recommendation specifies ITU-T Recommendations and standards of other SDOs to realize some specific services.
Services Stage 1 Stage 2 Stage 3 Note
Scope of Y.2007 (Extracted major documents from 155 docs in Y.2007)Services Stage 1
(Requirements)Stage 2 (Architecture)
Stage 3 (Signaling)
Note
Basic telecommunication services (Ph Vid
Y.2201 (NGN Requirements)Y.2262 (PSTN
Y.2012 (NGN architecture)Y.2021 (IMS)
Q.3300series (RACF)Q.3401 (NNI)Q.3402 (UNI)
Y.2006 (NGN capability
1)(Phone, Video phone, Conference, etc)
Simulation)Y.2701 (Security)Q.1706 (Nomadism), etc
Y.2111 (RACF)282.007*1 (IMS), etc
Q 3 0 (U )283.003*1 (IMS), etc
set 1)
IPTV basic Y 1901 (IPTV Y 1910 (IPTV H 750 (Metadata) IPTV FJIPTV basic service (Liner TV and VoD) over NGN
Y.1901 (IPTV requirements)G.1080 (QoE requirements)X.1191 (Content protection)
Y.1910 (IPTV architecture)Y.2017 (Multicast)H.622.1 (Home network)H.721 (Basic terminal),
H.750 (Metadata)H.762 (LIME)H.770 (Service discovery)RFC2326*2 (RTSP), etc
IPTV-FJ specification shown in underline
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protection)Y.2236 (Multicast), etc
etc
New functional architecture (Y.2012)SNI (Service Network Interface)
ID management functions based on Y.2720
Content deliveryContent delivery functions for IPTV
Mobility management and control functions (Y 2018) for FMC
Upgrading NACF and RACF for
Upgrading NACF(Y 2014) and
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(Y.2018) for FMCand RACF for FMC and IPTV
NACF(Y.2014) and RACF(Y.2111) for FMC and IPTV
Strategic direction for the futureRemaining enhanced network related capabilities
Transport control capabilities: Mobility, Multicasting and QoS control over interworkingNetworking capabilities: Ad-Hoc Networks, DSN, Multi-connection and Ubiquitous NetworkingSecurity related: Support of IdM and DPI (Deep Packet I ti )Inspection)
Service related capabilitiesService support: SIDE (Service Integration and Delivery E i t )Environments)Provider support: OSE (Open Service Environment), Mobile IPTV and Web based IPTV
Continue to develop Testing Specification:Continue to develop Testing Specification:From methodology, testing model, architecture to detailed service testing such as VOIP service.Monitoring parameters set becomes the important part for
13 September 2010 9
Monitoring parameters set becomes the important part for NGN testing and interoperability.
GSC15-GTSC8-05 ITU NGN,Testing specification and Beyond
Contents
1. Introduction1. Introduction2. Current status on NGN
standardization & Future Directionstandardization & Future Direction3. Activities to improve interoperability4 Conclusion4. Conclusion
13 September 2010 10
Resolution 76 approved in WTSA08
Studies related to conformance and interoperability testing, assistance to developing countries[1], and a possible f t ITU M kfuture ITU Mark programme(Johannesburg, 2008)
The World Telecommunication Standardization Assembly (Johannesburg, 2008),
[1] These include the least developed countries, small island developing states and countries with economies in transition.
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Conformance testing
Testing methodologyConformance testingConformance testing comes first. This type of testing strives to determine if the implementation of a standard does what the standard says it is supposed to do. Each implementation is tested against the same conformance test suite developed for that standard. The basic test co o a ce test su te de e oped o t at sta da d e bas c testconfiguration is shown in Figure 1.
T t S it (f i b t d d)
Interoperability testingInteroperability testing follows next This type of testing checks two
Product Test Suite (for a given base standard)Figure 1 - Conformance testing using a standardized conformance test suite.
Interoperability testing follows next. This type of testing checks two implementations at a time, to determine if the pair is capable of communicating by exchanging useful data at the functional level.
Conformance testing or Interoperability testingConformance testing or Interoperability testingThe ultimate objective of conformance testing is to achieve interoperability, given that interoperability has been written into the standards. The objective of interoperability testing is to check if interoperability has been achieved through conformance. Conformance and interoperability
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achieved through conformance. Conformance and interoperability testing are complementary, and should be done in that order.
JCA-CIT Draft “Conformance and Interoperability Testing Roadmap” Appendix I Providing interoperability with ITU Recommendations
Conformance TestingDefinition of conformance
compliance with requirements specified in applicable series Recommendations. [ITU-T X.290]
S f C f t tiScope of Conformance testingTest subject is connected to the tester or reference machine and examines the conformity with reference recommendations.Certifications or type of approval may be given to the productsCertifications or type of approval may be given to the products passed by the testing authority. This is not a mandatory function of conformance testing.
The documents which describe test specifications for the conformance testing are specified in the test specification language such as PICS, PIXIT etc.
Test Subject(Product)Tester
General configuration for Conformance testing
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e.g. UNI/NNI
Interoperability TestingDefinition of interoperability testingDefinition of interoperability testing
testing to assess the ability of two or more systems to exchange information and to make mutual use of the information that has been exchanged. [ITU-T Z.450]
Scope of Interoperability testingScope of Interoperability testingMultiple products of multiple vendors are connected and tested for interoperability at the service level and/or transport level.
Interoperability testing will be conducted in the following stepssteps,
Define service scenario (service use case).Define configuration, products and interfaces to be tested.Define implementation agreements for each test interface.Examine interoperability tests according to the test scenario and p y gimplementation agreement and analyze the test output.
The documents for Interoperability testing are service scenario (service use case) and implementation agreements for each test interfaces.Interoperability testing (e.g. IOT configuration for IMS based IPTV)
IPTV-AS Vendor A
13 September 2010 14Geneva, 18 - 22 May 2009
UE IMS IPTV-VS
QoS/Router
Vendor B
Test interface14
New draft Recommendations in SG11
NGN interoperability
Draft Recommendation Q.NGN interoperabilityVoIP conformance Testing1 SCOPE
Draft Recommendation Q.**Generic framework Detailed Technical Spec. for VoIP
NGN e ope b y1 SCOPE2 REFERENCE3 DEFINITIONS4 ABBREVIATONAS AND ACRONYMS5 INTEROPERABILITY TESTING AND
1. SCOPE2. REFERENCES3. DEFINITIONS4. ABBREVIATIONS5. CONVENTIONS6. GENERAL PRINCIPLES
CONFORMANCE TESTING6 CONFORMANCE TESTING6.1 GENERAL6.2 RWQUIREMENTS6.3 PHYSICAL CONFIGURATION6 4 CONFORMANCE TESTING FOR NGN
6. G N NC S7. PREPARATION FOR TESTING8. TEST OPERATIONS9. TEST REPORT PRODUCTION
・・
Add specifications for other services in future6.4 CONFORMANCE TESTING FOR NGN
PROCEDURE6.5 DOCUMENT SETS7 INTEOPERABILITY TESTING7.1 GENERAL7.2 REQUIREMWNTS
VoIP interoperability Testing1. SCOPE
Draft Recommendation Q.*** (Newly proposed in this meeting)
7. QU WN S7.3 PHYSICAL CONFIGURATION7.4 DOCUMENT SETS7.5 INTEROPERABILITY TESTING FOR
NGN PROCEDURE
2. REFERENCES3. DEFINITIONS4. ABBREVIATIONS5. CONVENTIONS6. GENERAL PRINCIPLES7 PREPARATION FOR TESTING
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7. PREPARATION FOR TESTING8. TEST OPERATIONS9. TEST REPORT PRODUCTION
・・
Add specifications for other services in future
Proposal in accordance of Japan experience on VoIP service testing
TTC developed Technical Reports to specify the detailed protocol specifications at NGN UNI and NNI for interoperability between Japanese operatorsinteroperability between Japanese operators.TTC developed TTC standards JT-Q3401 and JT-Q3402 which consist of the translation part of ITU-T Recommendations and TTC original specifications as Annex and Appendix.
ITU-T Q.3402TTC JT-Q3402 ITU-T draft Rec.ITU-T
TTC TR-9024 Main text
Annex
Q.VoIP conformance Testing at NGN UNI
Annex
Service specifications for
VoIPUp stream
TTC additional spec.Main text
AnnexAppendix
Appendix
Technical information
AnnexVoIP
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Appendix
SDOa SDOb SDOc
ITU Interop Event on IPTVThe first event took place in ITU in Geneva from 20 to 23 July 2010
Interoperability testing: 20-21, showcasing:22-23 Participations
NEC, NTT, Mitsubishi Electric, OKI, Pontifical Catholic University of Rio de Janeiro (PUC-RIo), Sumitomo Electric IndustriesCisco:showcase onlyObservers: Institute for Inforcomm Research(I2R, Singapore), Global ICT Standardization Forum of India (GSIFI) Certificates of participation were awarded to all participating organizations.
Target RecommendationsH.721 (IPTV basic terminal), H.750 (metadata) , H.762 ( ) ( )(lightweight interactive multimedia), H.770 (service discovery) )
Next EventsSingapore, September 2010; India, December 2010
13 September 2010 17http://www.itu.int/net/ITU-T/cdb/interop.aspx
i) Interoperability testing ii) showcasing
Conclusion
This presentation introduces the current status and future direction of the standardization in the ITU-T NGN-GSI meeting.NGN interoperability became seriousNGN interoperability became serious problems because SIP protocol has many options. And assuring interoperability based
th l b l t d d i t d i fon the global standard is strong desire from the developing countries.ITU-T NGN-GSI continues to developITU T NGN GSI continues to develop enhanced services and functions and improve NGN interoperability.
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Thank you!y
Kaoru KenyoshiNEC CorporationEmail [email protected] +81-90-2217-8288
13 September 2010 19