ETSI SR 002 586 V1.1.1 (2008-08)

ETSI SR 002 586 V1.1.1 (2008-08)
Special Report


Electronic Communications Networks and Services;
Consequence on the NGN standardization activity
from the EU ECN&S regulatory view point

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2 ETSI SR 002 586 V1.1.1 (2008-08)



Reference
DSR/OCG-00017
Keywords
interoperability, interworking, network, regulation,
service
ETSI
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3 ETSI SR 002 586 V1.1.1 (2008-08)
Contents
Intellectual Property Rights.4
Foreword.4
Introduction .4
1 Scope.5
2 References.5
2.1 Normative references.5
2.2 Informative references.5
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.8
4 Description of the NGN .10
4.1 NGN Functional Architecture .10
4.2 New capabilities of NGN .13
4.2.1 ETSI TISPAN NGN.13
4.2.2 3GPP.15
5 Regulatory Requirements for NGN.17
5.1 Decoupling of service from transport.17
5.2 NGN mapped to ECN&S .18
5.3 EC Regulatory targets and technical standardization .20
5.4 Freedom of choice for users .20
5.4.1 Access to ECS providers.20
5.4.2 Interconnection.21
5.5 Mobility.23
5.6 QoS and Network Performance.24
5.7 Customer Protection.24
5.7.1 Privacy.25
5.7.1.1 Identification information.25
5.7.1.2 Location information.25
5.7.2 Control of expenditure (Accounting and charging) .25
5.7.3 Subscription Management.26
5.8 Security.26
5.9 Emergency communications.27
5.10 Numbering and Addressing.27
5.11 e-Accessibility.28
6 Recommendations for future work.29
6.1 Enhancement of provision of new services and freedom of choice for users.29
6.2 Quality of Service and Network performance.29
6.3 Privacy.29
6.4 Security.29
6.5 Emergency Communication.30
6.6 Numbering/addressing/naming and Identity management .30
6.7 e-Accessibility.30
Annex A: NGN IMS overview.31
Annex B: Bibliography.35
History .36

ETSI

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4 ETSI SR 002 586 V1.1.1 (2008-08)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Special Report (SR) has been produced by Advisory Committee Operational Co-ordination Group (OCG).
NOTE: The SR type of deliverable was chosen to publish the contents of the document because the information is
not specifically technical and is an integration of information from many sources. The current version of
the present document was published after endorsement by the ETSI Operational Co-ordination Group,
which represents all technical bodies of ETSI.
Introduction
The application of Article 17 of the Framework Directive (2002/21/EC [i.1]) led to the production of studies like
SR 002 211 [i.2] carried out by ETSI, and other European Standardization Organizations (ESOs). The development of
NGN concepts and other future trends is impacting widely and deeply the future of the e-Communications Networks
and Services, introducing major influence of other sectors, like IT, Broadcasting and other consumer's close products
and services.
European authorities started a revision of the relevant regulatory documents. It is urgent that the appropriate TBs within
ESOs are aware of the regulatory requirements and take them appropriately into account when developing standards for
the NGN. The present document results from a number of fundamental presentations offered during the ECN&S
meetings by the end of 2005 and beginning of 2006 and should evolve with contributions from ESO TBs and feed-back
from CEU and European National Regulatory Authorities (NRAs).
The present document aims at identifying:
- the consequences of NGN standardization from the regulatory view point;
- standards which are produced to achieve public interest objectives;
- areas where further studies are needed.
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5 ETSI SR 002 586 V1.1.1 (2008-08)
1 Scope
The present document is intended for both regulators and technical groups. It looks at the NGN from the technical
regulatory point of view. It assesses how the EU Regulatory Framework applies to the NGN as specified by ETSI
TISPAN in collaboration with 3GPP (e.g. for IMS), TC LI and ITU-T. The present document refers to the Release 1 of
NGN which does not include IPTV nor does it include content matters.
Regarding VoIP, the present document only looks at Voice over NGN. Only the NGN specific regulatory requirements
are considered in the section. Outside the scope are requirements which apply to any networks (e.g. EMC).
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
Not applicable.
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] Directive 2002/21/EC of the European Parliament and of the council of 7 March 2002 on a
common regulatory framework for electronic communications networks and services (Framework
Directive).
[i.2] ETSI SR 002 211: "Electronic communications networks and services; Candidate list of standards
and/or specifications in accordance with Article 17 of Directive 2002/21/EC".
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6 ETSI SR 002 586 V1.1.1 (2008-08)
[i.3] ETSI ES 282 001: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Functional Architecture".
[i.4] ETSI ES 282 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Functional architecture".
[i.5] ITU-T Recommendation Y.2001: "Next Generation Networks - Frameworks and functional
architecture models; General overview of NGN".
[i.6] ITU-T Recommendation Y.2012: "Functional requirements and architecture of the NGN".
[i.7] ITU-T Recommendation Y.2011: "General principles and general reference model for Next
Generation Networks".
[i.8] ETSI TS 181 006: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Direct Communication Service in NGN; Service Description
[Endorsement of OMA-ERELD-PoC-V1]".
[i.9] ETSI ES 282 004: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Functional Architecture; Network Attachment SubSystem
(NASS)".
[i.10] ETSI TS 123 002: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); Network architecture (3GPP TS 23.002 version 6.10.0
Release 6)".
[i.11] ITU-T Recommendation Y 2091: "Terms, Definitions and High-Level Terminological Framework
for Next Generation Networks".
[i.12] ETSI TR 180 000: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Terminology".
[i.13] IETF RFC 3261: "SIP: Session Initiation Protocol".
[i.14] ETSI TR 180 001: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Release 1; Release definition".
[i.15] ETSI TS 181 005: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); Service and Capability Requirements".
[i.16] ETSI TS 122 101: "3Universal Mobile Telecommunications System (UMTS); Service aspects;
Service principles".
[i.17] ITU-T Recommendation M.3050.1: "Enhanced Telecommunications Operations Map - The
Business Process Framework".
[i.18] ETSI TR 121 905: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); Vocabulary for 3GPP Specifications (3GPP TR 21.905
version 7.4.0 Release 7)".
[i.19] ITU-T Recommendation Y.110: "Global Information Infrastructure principles and framework
architecture".
[i.20] ETSI TR 101 878: "Telecommunications and Internet Protocol Harmonization Over Networks
(TIPHON) Release 5; Service Capability Definition; Service Capabilities for a Multi Media Call".
[i.21] ETSI TS 102 261: "Open Network Services and Architecture (ONSA); Abstract architecture and
reference points definition; Mapping of functional architectures and requirements for NGN".
[i.22] ITU-T Recommendation X.115: "Definition of address translation capability in public data
networks".
[i.23] Void.
[i.24] Void.
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7 ETSI SR 002 586 V1.1.1 (2008-08)
[i.25] IETF RFC 3966: "The tel URI for Telephone Numbers".
[i.26] ETSI TS 102 424: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Requirements of the NGN network to support Emergency
Communication from Citizen to Authority".
[i.27] ETSI TS 182 006: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Stage 2 description (3GPP TS
23.228 v7.2.0, modified)".
[i.28] ETSI TS 123 228 (V7.2.0) modified: "IP Multimedia Subsystem (IMS); Stage 2 description".
[i.29] ETSI TS 133 203: "3G security; Access security for IP-based services".
[i.30] ETSI ES 282 010: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Charging management [Endorsement of 3GPP TS 32.240
Release 7, 3GPP TS 32.260 Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298 Release 7 and
3GPP TS 32.299 Release 7, modified]".
[i.31] ETSI TS 182 009: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Architecture to support emergency communication from
citizen to authority [Endorsed document 3GPP TS 23.167, Release 7]".
[i.32] ETSI TS 183 021: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Release 1; Endorsement of 3GPP TS 29.162 Interworking
between IM CN Sub-system and IP networks".
[i.33] ETSI TS 129 162: "Interworking between the IM CN subsystem and IP networks".
[i.34] ETSI TS 123 218: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); IP Multimedia (IM) session handling; IM call model; Stage
2 (3GPP TS 23.218)".
[i.35] Treaty of Maastricht (http://en.wikipedia.org/wiki/Three-pillars-of-the-European-Union).
[i.36] ETSI ES 282 003: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Resource and Admission Control Sub-System (RACS):
Functional Architecture".
[i.37] ITU-T Recommendation Y.2205: "Next Generation Networks - emergency telecommunications -
Technical considerations".
3 Definitions and abbreviations
3.1 Definitions
Wherever possible, the present document refers to existing terminology from ETSI and ITU-T sources. The terms and
definitions and a framework relevant to providing a general understanding of Next Generation Networks are provided in
the ITU-T Recommendation Y.2091 [i.11] and in TR 180 000 [i.12].
access network: collection of network entities and interfaces that provides the underlying IP transport connectivity
between the device and the NGN entities
administrative domain: collection of physical or functional entities under the control of a single administration
core network: portion of the delivery system composed of networks, systems equipment and infrastructures,
connecting the service providers to the access network
customer: the customer buys products and services from the Enterprise or receives free offers or services
domains: describes the infrastructure owned by single operators
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8 ETSI SR 002 586 V1.1.1 (2008-08)
domain (General): collection of physical or functional entities which are owned and operated by a player and can
include entities from more than one role
identity: attributes by which an entity or person is described, recognized or known
networks: terms listed here describe the connectivity infrastructure surrounding an NGN
player: organization, or individual, which undertakes one or more roles
role: business activity which fits in a value chain
subscriber: person or organization responsible for concluding contracts for the services subscribed to and for paying
for these services
service domain: collection of physical or functional entities offering IP based services under the control of an NGN
Service Provider which share a consistent set of policies and common technologies
user, end user: the user is the actual user of the products or services offered by the Enterprise
User Equipment (UE): one or more devices allowing user access to network services delivered by NGN
user domain: collection of physical or functional entities under the control of an end user that share a consistent set of
policies and common technologies
user profile: set of information necessary to provide a user with a consistent, personalized service environment,
irrespective of the user's location or the terminal used (within the limitations of the terminal and the serving network)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP Third Generation Partnership Project
ACR&CB Anonymous Call Rejection & Call Barring
AF Application Function
ALG Application Level Gateway
AoC Advice of Charge
ARF Access Relay Function
AS Application Server
ASF Application Server Function
B2B Business-to-Business
CDR Call Detail Record
CLIP/OIP Calling Line Identification Presentation / Originating Identification Presentation
CLIR/OIR Calling Line Identification Restriction / Originating Identification Restriction
CoIX Connectivity-oriented Interconnection
COLP/TIP Called Line Identification Presentation / Terminating Identification Presentation
COLR/TIR Called Line Identification presentation Restriction / Terminating Identification presentation
Restriction
CS Circuit Switched
DoS Denial of Service
ECN Electronic Communication Network
ECS Electronic Communication Service
EMC Electro Magnetic Compatibility
ENUM Electronic Numbering
eTVRA Threat, Vulnerability and Risk Assessment for eEurope
FBI Fixed Broadband Access to IMS
FMC Fixed Mobile Convergence
GPRS General Packet Radio Service
HSPA+ HSPA Evolution
HSS Home Subscriber Server
IBCF Interconnection Border Control Function
I-BGF Interconnect Border Gateway Function
I-CSCF Interrogating Call Session Control Function
ICT Information and Communication Technologies
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9 ETSI SR 002 586 V1.1.1 (2008-08)
IM CN IP Multimedia Core Network
IMS IP Multimedia Subsystem
IMS-MGW IMS Media Gateway
IM-SSF IP Multimedia Service Switching Function
IP Internet Protocol
IP-CAN IP Connectivity Access Network
IPTV Internet Protocol TeleVision
ISDN Integrated Service Digital Network
ITU International Telecommunication Union
ITU-T ITU Telecommunication Standardization Sector
IWF InterWorking Function
I-WLAN Interworking WLAN
LI Lawful Interception
LTE Long Term Evolution
MCID Malicious Call IDentification
MGCF Media Gateway Control Function
MM MultiMedia
MMS Multimedia Messaging Service
MRFC Media Resource Function Control
MRFP Multimedia Resource Function Processor
NAPT Network Address and Port Translator
NASS Network Attachment SubSystem
NAT Network Address Translation
NGN Next Generation Network
OSA SCS Open Services Architecture Service Capability Server
PBX Private Branch Exchange
PCC Policy and Charging Convergence
PCRF Policy and Charging Rules Function
P-CSCF Proxy Call Session Control Function
PDBF Profile DataBase Function
PDF Policy Decision Function
PES PSTN/ISDN Emulation Subsystem
PS Packet Switched
PSTN Public Switched Telephone Network
QoS Quality of Service
RACS Resource Admission Control Subsystem
RTSP Real Time Streaming Protocol
SAE System Architecture Evolution
SBLP Service Based Local Policy
S-CSCF Serving Call Session Control Function
SDP Session Description Protocol
SGF Signalling Gateway Function
SIP AS SIP Application Server
SIP Session Initiation Protocol
SLF Subscription Locator Function
SMS Short Message Service
SoIX Service-oriented Interconnection
TDM Time Division Multiplex
TISPAN Telecoms and Internet converged Services and Protocols for Advanced Networking
TLS Transport-Layer Security
T-MGF Trunking Media Gateway Function
TV TeleVision
UE User Equipment
UPSF User Profile Server Function
VCC Voice Call Continuity
WAP Wireless Access Protocol
WLAN Wireless Local Area Network
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10 ETSI SR 002 586 V1.1.1 (2008-08)
4 Description of the NGN
NGN is a term widely used by telecommunication operators to represent a number of current and future structural
changes in the telecommunication sector. The main difference between NGNs and today s PSTNs is a shift from
circuit-switched networks that are traditionally used for voice service to packet-based networks providing a range of
services including voice, video and data. These networks are applicable to various service characteristics. Traditional
voice networks are based on circuit-switching and offer end-to-end quality of service.
The aim of the NGN is to offer more consistent speech quality service than may be achieved on the Internet when best
effort service is used. Although, in many cases a quality of an Internet connection is good and the "self management"
provides great resilience. NGN can be seen as a logical evolution from separate network infrastructures into a unified
network for electronic communications based on IP. Participants from the telecommunication industry consider NGN as
a progression of current technology leading to a multi-service, secure, packet-based global network, which will be able
to offer quality of service and ease of access for end-users (see Bibliography).
The possible migration to Next Generation Networks (NGN) is nowadays becoming an important issue for the major
telecommunication players. The eventual total switch-off of the traditional PSTN is expected to happen in the next ten
years.
There are numerous views of what constitutes NGNs and different operators that have begun the process of migration or
development refer to their networks differently. NGNs can be developed using a number of transmission technologies,
including fibre, cable, fixed, mobile wireless, or further technology upgrades to the existing copper based networks.
This represents the shift from a "one network-one service" approach, to a "one network-many services" one.
The transition to NGN driven by several forces, or enabling factors, is summarized as follows:
• structural changes on the ICT market;
• new users' needs and requirements;
• technology evolution;
• competition in the electronic communications market.
The transition to NGN also offers different opportunities at different levels of the telecommunication market:
For operators, NGN is considered essential for strategically positioning networks to compete in the increasingly
converged world of services and content where voice is no longer the sole source of revenue.
At a market level, NGN is partially driven by the increased demand for ubiquitous, integrated data, voice and video,
mobile and fixed broadband, alongside the increasing role of mobile services in the broadband domain. Operators and
investors seek increased revenue and profitability, greater productivity and broader service offerings. These trends are
facilitating the integration of separate and distinct mobile and fixed technologies (optimized for one service) to enable
the seamless distribution of services over fixed and mobile broadband networks, i.e. transport services, and to create a
unified IP-based multiservice network. In other words, NGN can be viewed as a "communication network that allows
unfettered access to all communication products and services, irrespective of the service provider or network
connection".
4.1 NGN Functional Architecture
The functional architecture of the ETSI TISPAN NGN Release 1 is provided in the ES 282 001 [i.3].
...