Report of ETSI NGN Activities. Rainer Münch ETSI TISPAN Chairman Presenter: Ian Spiers. Submission Date: June 27, 2008. NGN in ETSI. Technical Body – TISPAN Common IMS in 3GPP. TISPAN is … the home of NGN standards. TISPAN is the ETSI body that - PowerPoint PPT Presentation
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• An important standards group (and a great one) …
– Typically up to 160 participants per meeting
– International participation (Europe, Asia, Americas)
– Up to +800 documents to treat in 7 WGs during one week
– 4 plenaries, 4-6 WG meetings, 4-8 ad hocs per year
TISPAN is today
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TISPAN Organisation
• 7 Working Groups– Requirements and Architecture– Protocols– Numbering, Naming, Addressing, Routeing– Home Networks– Testing and Validation– Security– Network Management
• Hierarchical system for organising and managing the work• Oversee activity per topic• Collocated Technical Committee Plenaries and full WG meetings (4
times a year)• Interim meetings as required and agreed (face-to-face or virtual)• Close co-operation with other SDOs, ITU-T, 3GPP, corporate networks
(e.g. Ecma), many fora and groups
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ETSI NGN Status
• Release 1 ………….. Status Complete
• Release 2 ………….. Nearing completion
• Release 3…………… Requirement capture and early work progressing
• Transfer of Work Items for Common IMS
• All Common IMS related WIs have been transferred to 3GPP, TISPAN monitor progress carefully and take appropriate action if specific problems are identified.
– TS 183 063 on IMS IPTV Stage 3 Core network aspects has been published.
– TS 183 064 on IPTV dedicated system Stage 3 has been approved at TISPAN#18 Plenary (03 – 04 July 2008).
• Numbering, naming, addressing, routeing• Home networks and devices• Corporate networks and business communication
Some key work areas in NGN R2
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ETSI TISPAN NGN Release 3
• Early requirements for the next TISPAN Release include
– VoIP Consolidation (including QoS, security, interworking)
– IPTV Service evolution (blended services and beyond)
– Consolidation of the work on business communication
– Ultra Broadband (fixed and wireless) access to the NGN• Work progressing on Non-3GPP access systems
– Improvements to Release 2, e.g. resource control
– Interconnection (NGN, NGCN)
– Network Harmonisation - increase interoperability with other NGNs and other networks (non IMS).
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Home Networks
• Analyse the impacts on the “customer environment” derived from the high level system requirements for the support of the TISPAN defined services and capabilities.
• Define requirements and specifications to be applied to the customer environment elements (home gateways and customer devices).
• Definition of detailed architecture and reference points (within the home network) for the customer network gateway (CNG) and the customer network devices (CNDs) for conversational services.
• Definition of detailed architecture and reference points for the customer network devices (CNDs) enabling the IPTV IMS based service usage.
• Definition of guidelines for the implementation of security mechanisms in the customer networks
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Home Networks – Next Steps
• Completion of activities detailing the protocols used by the Customer Gateway and the Customer Network Devices (conversational services) on the basis of the published deliverables on which the reference architectures are defined.
• Completion of activities detailing the functions of the customer gateway.
• Definition of protocols handled by the Customer device enabling the IPTV IMS based service usage.
• Update of the guidelines on security mechanisms for customer networks.
• Launch of activities for defining new use cases and requirements for customer networks for TISPAN NGN R3.
• Definition of possible new documents detailing specific technical aspects typical for customers networks (e.g. Quality of Service in-home mechanisms, Remote Management issues etc.)
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European Home Networking Platform
• Efficient broadband deployment & multi-service implementation• Home networking platform is included within ETSI TC ATTM (Access
Terminals Transmission Multiplexing)• Home networking platform covers
– Telecommunications Access and Home Networks including Terminal Equipment and Network Terminating Equipment.
– Copper, fibre and wireless transmission support.– Lower layers of home networks (in collaboration with TISPAN for service
implementation).
• Collaboration with other relevant bodies within and outside of ETSI (e.g. ITU-T, CENELEC)
• Strong telecom position to champion used transmission protocols, e.g. DSL systems in home networking.
• Increasing load in customer premises will more than balance any saving actions into the network
– PSOs are invited to champion energy efficiency in developed specifications on ICT products, systems and installed ones in order to implement multi-service
– PSOs are invited to support usable residential networking guidance towards users (customers) including a greener approach
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Numbering, Naming and Addressing
• TISPAN WG4 have investigated the need to introduce a Naming Address Resolution (NAR) framework into TISPAN NGN conformant communication networks
• The following approach was adopted:– Investigation of ‘use cases in the NGN environment’ to determine required
NAR functions
– Gap Analysis of current TISPAN NGNs specifications - comparing them to existing/emerging solutions of NAR methods.
– Identification of items requiring further standardization based on the above analysis
– Analysis of the consequences of creating a Naming Address Resolution framework.
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NGN Interconnection
• TISPAN is currently working on ENUM & DNS Guidelines that will enable TISPAN to evaluate their requirements against what is set out within the GSMA documents IR34 and IR37.
• That exercise will provide a firm basis for TISPAN examine their requirements for an Inter-operator IP backbone network and discuss the possibility of a common approach with the GSMA, or alternatively conclude why this isn't the case.
• ETSI to: – Complete work on ENUM & DNS Guidelines, NGN evolution for interconnection,
inter-domain and access reference points, numbering, naming, addressing, routeing and Naming Address Resolution functionality
– Identify any critical outstanding issues and propose a way forward, e.g. the need to develop further commercial and administrative arrangements required to facilitate the realisation of an IPX responding to TISPAN requirements
– Compare detailed requirements and guidelines against other planned approaches e.g. GSMA
– Consider the likelihood of achieving a viable large scale global approach for common IMS providers
• ETSI is supporting the view that all required parties need to move forward in a coordinated manner.
• ETSI is supporting collaboration with 3GPP, GSMA, SDOs, ITU-T.
– Defines also security requirements for IPTV, Business Communication, Media Security, Home Networking, and for countering UC
• NGN eTVRA (TR 187 002)– Threat and risk analyses for specific NGN use cases such as NAT
traversal, RACS, Media Security, and Unsolicited Communication;• NGN Security architecture (TS 187 003)
– Defining the security architecture for IPTV, Home Networking, FMC, Media Security, H.248, Corporate Networks
• Generalised NAT traversal feasibility study (TR 187 008)• Media security (TR 187 007)• Impact of unsolicited communication in the NGN (TR 187 009)• NGN Lawful Interception functional entities, information flow and
reference points (TS 187 005)• Data retention and its impact on the NGN (TR 187 012)
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Early TISPAN NGN R3 security:
• Feasibility study on IPTV security architecture– Study models and key management systems for service protection
• aim to develop the model for the NGN. – Study of functional entities and mechanisms for service protection
with the• aim to define these for the NGN.
– Study of a framework open to the integration of content protection solutions.
• Feasibility study of security mechanisms for customer premises networks connected to TISPAN NGN.
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Topics for future security work
• IPTV security (enhancement of stage 2, definition of stage 3)• Adding Prevention of Unsolicited Communication as a feature (stage 1, stage
2, stage 3)• Identity protection, authentication and integrity countermeasures and to define
credential management• Media security provisioning (stage 1, stage2)• Additional work on NAT-T (e.g. interaction with RACS, interaction with IPTV,
security analysis of use of STUN)• Enhanced security for NASS, RACS • Security for CNG/CND (stage 1, stage 2, stage 3)
– Implications for AGCF security• Security for NGCN • FMC (taking into account requirements of the FMCA)• Diameter and Radius AVP profiling• Application layer security on the NGN (e.g. TELCO 2.0)• Analyse the inter-relation between security features and architecture of the
NGN (IPTV, NAT-T, NASS, RACS etc.) in terms of how to employ consistent security architecture and mechanisms
• Develop general rules, patterns, and templates to ease the employment of the NGN in practice and to facilitate risk control
• “JointSuM” – collaboration between ETSI TISPAN WG8, 3GPP SA5, and TM
Forum TIP, working on alignment of the Subscription Management and Service Activation specifications in these bodies. Recently, also ITU-T SG 4 has indicated their interest in this work.
• Collaboration– TM Forum and other de facto bodies are important players in the
global telecom management standards arena. Their work is being taken into account in TISPAN WG8.
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Testing Activities
• Production of manual and automatic test suites to ensure the conformance to TISPAN, 3GPP and ITU standardised protocols.
• These tests ensure– the global interoperability for and between ISDN and TISPAN NGN
Releases incl. PSTN/ISDN Emulation Subsystem,– QoS between networks,– performance benchmarking for NGN
• Co-operation with– 3GPP– ITU (SG 11, SG 12)
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ETSI NGN STF activities
• Still an important part of ETSI working Methods
• User STF work
• EC Emergency and location work
• Security
• NGN UCI
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• As NGN networks are being rolled out and tested, TISPAN is seeing a large increase in the number of corrections (CRs) to NGN-R1 and R2. This is a good sign.
• TISPAN (and ETSI) recognises the importance of cooperation agreements and is identifying key bodies and works together to avoid duplication of effort.
• TISPAN’s members are now focused on Rel-2 completion and progressing new work areas for Rel-3.
• Push ahead with e.g. the Interconnection work, IPTV, home networks, next generation corporate networks, next generation access technologies.
Next Steps (in Standards)
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Other PSOs
• Noted that the work on NGN protocols in ITU-T SG 11 is progressing well.
• Cooperation between PSOs is continuing.• To be completed during this GSC meeting when information is available.
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Challenges
• It is noted that caution should be taken to ensure that work is not duplicated in PSOs. In general, cooperation is working well.
• As new features and services are introduced using NGNs, more and more divers players are active on the playing field (e.g. NGN IPTV-Content suppliers-broadcaster etc). This has to be coordinated!
An Example of the Hierarchical System for Organising and Managing the Work
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WI 07027Identity
Management issues
NGN Feasibility Studies Feed into TISPAN Core Security Documents:
WI 07021Feasibility Study on
Media Security
WI 07025 Feasibility Study of Prevention of
Unsolicited Communication
in the NGN
TR 187 001NGN Security Requirements
TR 187 002NGN eTVRA
TS 187 003NGN Security Architecture
TS 187 006NGN Counter-
measures
WI 07022NAT
Traversal Feasibility
Study Report
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List of TISPAN Rel-2 deliverables (1/8)
Rel-2 Overall Description:
Release 2 definition 180 002
Service and Capability Requirements 181 005
NGN Functional Architecture 282 001
IMS General Evolution:
IMS Functional architecture 282 007
IMS Stage 2 description 182 006
IMS Call Control Protocol based on SIP and SDP Stage 3[3GPP TS 24.229 Rel-7 modified] 283 003
H.248 Profile for controlling MRFP in the IMS; Protocol specification [3GPP TS 29.333 Rel-7 modified] 183 031
Common Basic Communication procedures; Protocol specification 183 028
Requirements for a NGN Session Control Protocol and analysis of the IMS SIP profile meets these requirements 282 016
Interworking between IMS and IP networks (Endorsement of 3GPP TS 29.162) 183 021
Diameter-based protocol between CSCF and UPSF/SLF; Signalling flows and protocol details [3GPP TS 29.228 V6.8.0 and 3GPP TS 29.229 V6.6.0, modified] 183 033
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List of TISPAN Rel-2 deliverables (2/8)
IMS Supplementary Services (ISS):
Advice of Charge (AoC):
Advice Of Charge (AOC) Stage 3 183 047
Call Completion on Busy Subscriber (CCBS), Call Completion No Reply (CCNR):
CCBS, CCNR Stage 3 183 042
Call Waiting (CW):
CW Stage 3 183 015
SMS over NGN IMS:
Overview of Messaging Services 181 007
Support of SMS over NGN IMS Stage 2 182 021
Support of SMS and MMS over NGN IMS subsystem; Stage 3[Endorsement of 3GPP TS 24.341 Release 7] 183 051
Messaging service using the IMS: Stage 3: Protocol specifications [Endorsement of 3GPP TS 24.247 Release 6] 183 041
Direct Communication (DC) Service:
DC Service Description [Endorsement of OMA-ERELD-PoC-V1] 181 006
DC Architecture and functional description [Endorsement of OMA-AD-PoC-V1] 182 017
DC: SIP Protocol Specification (OMA-TS-POC_ControlPlane-V1, modified and OMA-TS-PoC_UserPlane-V1, modified and OMA-TS-PoC_XDM-V1, modified) 183 045
Customized Originating and Terminating Multimedia Information Presentation (COMIP/CTMIP) and Customized Originating and Terminating Multimedia Information Filtering (COMIF/CTMIF):
COMIP/CTMIP and COMIF/CTMIF Requirements Analysis 181 015
Presence Service (Presence):
Presence Architecture and functional description 182 008
Presence Architecture and functional description 283 030
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List of TISPAN Rel-2 deliverables (3/8)
PSTN/ISDN Simulation Subsystem (PSS):
Closed User Group (CUG) Protocol specification 183 054
PSS Communication Diversion (CDIV) Protocol specification 183 004
RACS: DIAMETER protocol for session based policy set-up information exchange between the Application Function (AF) and the Service Policy Decision Function (SPDF); Protocol specification Release 2 183 017
Re Reference Point; Protocol Specification 183 060
NGN Security; Report on security of identity in the NGN 187 010
NGN Security; Method for application of ISO 15408-2 requirements in NGN 187 011
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List of TISPAN Rel-2 deliverables (8/8)
Interworking
Solution for REFER interworking problems 183 052
ISDN/SIP interworking 183 036
Endorsement of the SIP-ISUP Interworking between the IMS and CS networks [3GPP TS 29.163 (Release 7), modified] 283 027
SDP Interworking between SIP/SDP and H.248/SDP 183 046
Other Rel-2 aspects
H.248 Non-Call Related Procedures and Management System Interaction 183 025
H.248 Profile for controlling Trunking Media Gateways (TMG) [Endorsement of 3GPP TS 29.332 (V7.7.0), modified] 283 049
Support of Overlap sending v2 in a IMS NGN Release 2 183 056
Feasibility study on Out-of-band DTMF transport 183 057
NGN Architecture to support emergency communication from citizen to authority 182 009
XML Document Management; Architecture and functional description 182 011
Testing Rel-2
Network Performance objectives tests for IP-based Voice services 102 547
Explicit Communication Transfer (ECT) Testing - Part 1: PICS 186 015-1
Explicit Communication Transfer (ECT) Testing - Part 2: TSS&TP 186 015-2
IMS NNI Interworking Test Specifications; Part 1: Test Purposes for IMS NNI Interworking 186 011-1
IMS NNI Interworking Test Specifications; Part 2: Test Descriptions for IMS NNI Interworking 186 011-2
Interworking between SIP and Bearer Independent Call Control Protocol or ISDN User Part, Profile A and BPart 1: Test Suite Structure and Test Purposes (TSS&TP) 186 002-2