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Global Standards, the Key Enabler
for the Next Generation Network
David Boswarthick
Technical Officer TISPAN
[email protected]
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ETSI is …
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
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ICT standards organization, independent & strictly non-profit
Based in Sophia Antipolis, south of France
654 members from 61 countries
Members are: manufacturers, network operators, service providers,
administrations, research bodies and users
 80% members have headquarters outside of Europe
 ETSI standards are adopted worldwide (e.g. GSM, UMTS, DECT, DVB,
TETRA, Lawful Intercept ... and many more
 ETSI standards can no longer be
considered as simply “European”
 All ETSI standards available for free
from our website http://www.etsi.org/
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Presentation Outline
 Motivators to evolve existing networks
 IMS - a platform for convergence
 Proposal to avoid IMS fragmentation
 TISPAN Rel-1 and Rel-2 Status
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The times they are a changin’
The order is rapidly fadin'.
And the first one now will later be
last
For the times they are a-changin'.
< Bob Dylan 1965 >
Ericsson buys Marconi: Ericsson is paying £1.2bn for the name and
most of the assets of Marconi (Oct 05)
eBay buys Skype: for $4.1 Billion (June 05)
Lucent and Alcatel: to merge and form a new communication solutions
provider (April 06)
Juniper and NEC: announce plans for joint FMC solutions (Nov 06)
Nokia Siemens Networks: a 50-50 joint venture that will cover both
fixed line and mobile networks (June 06)
Google acquire YouTube: for $1.65 Billion (Oct 06)
3Com bid for Huawei: assets in H3C (Nov 06)
Others in the pipe ??? Media buzz around Nortel, Cisco, Motorola,
Ericsson ???
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Operators feel the squeeze
Market competition is increasing
Incumbents squeeze incumbents (internationally)
Mobile operators squeeze fixed operators
Fixed operators fight back with Wi-Fi solutions
Mobile operators are squeezed by Wi-Fi / Wi-Max, but also develop UMA
New players (MVNOs, CLECs, Google, Skype), squeeze everyone
Core revenue (voice) is saturated and profit declining
Whilst voice revenue stagnates, Data revenue increases
Network costs are too high, and old equipment need replacing
Networks are complex, hard to scale and interoperate
Operators are tied to vendors for dedicated technologies
Roll-out time for new services is too long
Also customers are pushing for more innovative services
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Customer expectations are evolving
Yesterday
Tomorrow
Content and Services
Computing
Telephone
•My contacts
•My messages
•My calendar
•My presence
•My applications
•My content
News
Tomorrow
Television
Interactive
gaming
Mail
Gaming
Converged
Phones
IPTV
VoD
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Evolve or become extinct
Option 1: Stick head in sand and ignore the storm
Continue down the same path, upgrade existing TDM
Option 2: Evolve:
simplify the network (reduce complexity and cost)
become access independent (mobile / fixed)
offer new services quickly and on demand
concentrate on content and services
Most operators seem to have chosen Option 2:
Orange UK and Wanadoo: Test IMS solutions
BT announce : National network migration 2008>
France Telecom: FMC user trials underway
KPN (Netherlands): FMC user trials underway
T.I.M (Italy): IP based Video sharing launched 2005
Telefonica (Spain): IMS deployment begins 2006
…and many more
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Operators fight back with NGN
NGN will:
Provide a migration path from PSTN/ISDN to an IP
based core, whilst maintaining existing services
Reduce CAPEX and OPEX, give better ROI
Provide a common foundation for fixed, mobile
and enterprise services
Allow the quick creation and deployment of
innovative new blended services on demand
Provide flexible dimensioning, easily scaleable
Allow advanced centralized network control, for
charging, O&M and more
Attract the third party service providers without
loosing control of the network
Open interfaces allow vendor independence, the
best equipment can be chosen for each layer
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NGN simplifies the network
Before NGN
NGN promises
“Stovepipe” service model
Services
Services
Services
“simplified” service model
Content and Services
Services
CATV
Data / IP
PSTN / ISDN
PLMN
Servers ...
IP Core
Access
Access
Access
Broadcast
UMTS
GSM/EDGE
xDSL
PSTN /
ISDN
WiFi/WiMax
Dedicated technologies – duplicated functions
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Presentation Outline
 Motivators to evolve existing networks
 IMS - a platform for convergence
 Proposal to avoid IMS fragmentation
 TISPAN Rel-1 and Rel-2 Status
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IMS – one Platform for Convergence
 NGN can initially exist without IMS
 MPLS / IP solutions are already being deployed
(e.g. BT 21CN)
 Mobile SIP-based IMS is at the core of both 3GPP
(W-CDMA) and 3GPP2 (CDMA-2000) networks
 3GPP IMS is being re-used for the NGN as defined
by TISPAN
 Tomorrow’s entire multimedia world will
eventually be “IMS” based
 IMS based network trials are underway
 Roll out of IMS based networks expected in 2008>
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What is IMS?

IP Multimedia Subsystem as defined by 3GPP
 IMS is defined by 3GPP from Release 5 onwards
 IMS standards define a network domain dedicated to the control
and integration of multimedia services.
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IMS builds on IETF protocols
 Based on SIP (for session control), Diameter (for AAA) as well as
several others (RTP, RTCP, STP…)
 3GPP have enhanced these protocols for mobility with the IETF
as opposed to fixing them ‘in-house’
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IMS in short
 Open-systems architecture that supports a range of IP-based
services over the PS domain, employing both wireless and fixed
access technologies
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IMS key specifications
 3GPP TS 22.228: IMS stage 1 (service requirements)
 3GPP TS 23.228: IMS stage 2 (architecture)
 3GPP TS 24.229: IMS stage 3 (protocols)
 3GPP TS 24.228: IMS signalling flows
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What does IMS provide?
 Services and Control
 Adds (SIP) call session control to the packet network
 Enables real-time services - such as voice, video - over a
packet-switched domain (p2p, VoIP, IM, presence)
 Enables signalling to be separated from transport data
 Mixed Multimedia
 Ability to pick and mix various multimedia flows in single
or multiple sessions
 Does not define services, but provides flexible ‘enablers’
 Connectivity Access Network Independence
 Provides access to IP based services independent of the
connectivity network: mobile (3GPP’s UMTS, 3GPP2’s
CDMA2000) and fixed networks (TISPAN)
 Simple Internet plus
 Enhanced security, service based QoS, single sign-on
and flexible charging
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IMS Technology Convergence
IMS has become
the point of
convergence
Cable
Fixed
IMS
Broadband
Wireless
Access
Mobile
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IMS Standards Convergence
Problem:
Related standards
are prepared in
different places
ETSI
TISPAN
Fixed
Access to IMS
3GPP
CableLabs
IMS
Cable
Access to IMS
WiMAX
Forum
Broadband Wireless
Access to IMS
3GPP
3GPP2
Mobile
Access to IMS
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Presentation Outline
 Motivators to evolve existing networks
 IMS - a platform for convergence
 Proposal to avoid IMS fragmentation
 TISPAN Rel-1 and Rel-2 Status
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Need for a single IMS specification
 The requirements for IMS are now derived from a
number of different communities (Mobile, BWA,
Fixed and Cable).
 Risk that IMS could become fragmented.
 If IMS variations occur then the economic
advantage of the mass market will be lost.
 A concerted effort is needed to ensure “one IMS”
that meets the needs of all user communities.
 The Mobile, BWA, Fixed and Cable industries have
recognized this challenge and are working towards
a harmonized standardization solution.
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3GPP capture requirements
ETSI
TISPAN
3GPP
CableLabs
IMS
WiMAX
Forum
3GPP
3GPP2
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Proposal to stop IMS fragmentation
 The scope of 3GPP will be extended to include the
requirements coming from other communities.
 Mechanisms will be put in place to ensure efficient
requirements capture from different industries.
 3GPP will be responsible for producing one set of
IMS specifications that satisfies the various
requirements.
 Expected these new arrangements will be put in
place during 2007.
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Presentation Outline
 Motivators to evolve existing networks
 IMS - a platform for convergence
 Proposal to avoid IMS fragmentation
 TISPAN Rel-1 and Rel-2 Status
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TISPAN NGN-R1
 NGN Rel-1 was completed at TISPAN#9 (Dec. 2005)
 Provided the first set of implementable NGN
specifications that are now being used by industry to
build the NGN.
 Main objectives - PSTN Replacement & Multimedia
 Provides the overall architecture for NGN
 Defines the various subsystems and how they
interwork:
• 3GPP Rel-7 IMS re-use and its relationship to other
TISPAN NGN components
• Defines PSTN/ISDN Emulation Subsystem (PES)
• Defines PSTN/ISDN Simulation Services (PSS)
• Network Attachment Subsystem (NASS)
• Resource and Admission Control Subsystem (RACS)
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Some TISPAN key specifications
 Stage 1:
 DES/TISPAN-02007-NGN-R1: Overall NGN-R1 architecture
 Stage2:
 DES/TISPAN-02019-NGN-R1: PES architecture
 DES/TISPAN-02020-NGN-R1: NGN RACS
 DES/TISPAN-02021-NGN-R1: NGN NASS
 DES/TISPAN-02029-NGN-R1: NGN IMS Architecture
 Stage 3:
 DTS/TISPAN-03043-NGN-R1: 3GPP 29.162 endorsement
 DTR/TISPAN-03033-NGN-R1: PSTN/ISDN Emulation
 DTS/TISPAN-03044-NGN-R1: PES Stage 3
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TISPAN NGN Architecture
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TISPAN and 3GPP synchronisation
 TISPAN R1 timescales and dependencies were
aligned with 3GPP Release 7 work on FBI.
 TISPAN NGN Rel-1 definition completed Dec 2005
 TISPAN NGN Rel-1 corrections up until May 2007
 3GPP Rel-7 completion planned March 2007
 TISPAN R2 timescales and dependencies are being
aligned with 3GPP Release 8 work on FMC.
 TISPAN NGN Rel-2 definition complete by end 2006
 3GPP will freeze Rel-8 requirements by end 2007
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Rel-2 main features
 TISPAN is progressing the work on Rel-2 concerning
the following main new work items:
 Requirements analysis for FMC (with such bodies as FMCA).
 Requirements analysis for home networking (in cooperation
with such bodies as HGI).
 Requirements for network capabilities to support IPTV
services (in cooperation with e.g. ATIS IIF and DVB).
 IPTV Integration of NGN Services and Capabilities using IMS
 Support of Business Services and Enterprise Network interworking.
 Close co-operation for corporate with Ecma Int. on:
 NGN Business services and Enterprise capabilities.
 NGCN – NGCorporateN interconnect requirements.
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Main points to take home
 Telecoms network convergence is
inevitable
 IMS is a pivotal point for the ensured
success of NGN
 A single place for IMS specification is
essential to avoid IMS fracture, and that
place is 3GPP
 Robust and open global standards are key
to the long term success of the NGN
 This is NOT the end …
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and finally….
Thank you for your kind attention
Now Time for your Questions
Also free DVD with all
3GPP and TISPAN specs.
Is available outside
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