Telenor and TISPAN NGN Judith Rossebø, ETSI TISPAN Security WG Chairman Senior Research Scientist, Telenor {
[email protected]}
Telenor Telenor facts facts •
One of the world’s largest mobile operators with 147 mill. mobile subscriptions* * 100% figures - all companies per Q1 2008.
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Norway’s leading telecommunications company
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Largest provider of TV services to the Nordic market
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Total workforce: 35,150 man-years (25,350 outside Norway)
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Market value as of 30 April 2008: NOK 169 billion
Norway Telenor
100%
Denmark Sonofon
100%
Sweden Telenor
100%
Pakistan Telenor Pakistan 100%
Hungary Pannon
100%
Bangladesh Grameenphone
62.0%
Montenegro Promonte
100%
Thailand DTAC
65.5% (*)
Serbia Telenor
100%
Malaysia DiGi
50.8%
Ukraine Kyivstar
56.5%
Russia VimpelCom
33.6%
*Economic exposure
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Telenor Involvement in Standardization and Fora Telenor is engaged in several Standardization organizations and Fora: – ETSI TISPAN, STQ, ESI, SCP – 3GPP – IEEE 802 – ITU-T – IPsphere Forum – OMA, OMTP – GSMA – NGMN Standards to simplify service deployment, cost efficiency, access independence …. a commercially sustainable framework for providing IP services.
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Next Generation Network - a reference architecture Horizontal layering - modular, flexible architecture Vertical (service specific)
Horizontal (service integration) Customers
Customers
Internet Internet
ATM/FR ATM/FR
Cable-TV Cable-TV
Satellite Satellite
Mobile Mobile
PSTN/ISDN PSTN/ISDN
Applications/ Stream Web Web Message StreamVoice Message Voice … content … Service enabler/ Session engine
IMS.. IMS..
Aggregation/core
IP IP
Access Cellular Fibre DSL Fibre WLAN DSL Cellular WLAN
Traditional
Long term vision
”Any service, any terminal, anywhere, anytime, to anyone”
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Next Generation Network – Why TISPAN?
New standards driven by new architecture and new business aspects
Telecommunication and Internet converged Services and Protocols for Advanced Networking
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TISPAN – beyond R2 – important topics • IPTV • QoS in a multi-service environment – RACS can help us to achieve this – End to end QoS
• Security – IPTV security (enhancement of stage 2, definition of stage 3) – Security for CNG/CND (stage 1, stage 2, stage 3) – 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
• IP Interconnection • Standardize elements and reduce complexity of the NGN
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TISPAN approach to security
TISPAN Working Group (WG) 7 is responsible for the management and co-ordination of the development of security specifications for TISPAN. • For the NGN, TISPAN WG7: – Defines security requirements; – Defines the security architecture; – Conducts threat and risk analyses for specific NGN use cases; – Proposes countermeasures.
WG7 security standardisation is risk-based: Using the ETSI TISPAN methodology for systematic threat, vulnerability and risk analysis (TVRA)
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IPTV-Security Requirement Approach. Development of IPTV-building blocks. • Analyze IPTV services. Based on this analysis, design an appropriate security model.
1 Service Requirements Threats Security Requirements
– Based on Service requirements*, identify security objectives and threats and from that deduce security requirements – Define security architecture taking into account service and security requirements – Develop appropriate countermeasures as re-useable building blocks
2 Architecture Security Architecture (Functions)
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Security
Protocols Security Counter-measures (Mechanisms)
* References: ETSI TS 181 016. TISPAN; Service Layer Requirements to Integrate NGN Services and IPTV. ATIS. IPTV DRM Interoperability Requirements. ATIS-0800001. ATIS. IPTV Architecture Requirements. ATIS-0800002. 8
IP-related interconnection Calling Party Pays
IPX
Originating Network Service Layer (“new IPX part”)
Service Aware for event based and stream based traffic
ENUM DNS etc
Terminating Network Routing and Addressing Function
“On-Net” Services SIP Proxy/Hub Inter-operator IP Packet Exchange (IPX) Eg, SMTP MMS Other Hub/Proxy (Managed)
Calling Party Pays
Traffic detection for routing, charging and Multi-lateral destination policing
Eg, SIP Voice
Eg, IM & Presence
Other Hub/Proxy Accounting Function Multi-lateral connection Mgmt
Public Mobile Network
Best Effort QoS
Third Party Provider
Network Layer (“existing GRX part”)
Third Party Subscriber
Interactive QoS
Corporate Streaming QoS Conversational Network(Voice) QoS
Content Provider
Calling Party Pays
Public Mobile Network
Conversational (Video) QoS
“Off-Net” Services Internet (Unmanaged)
Mobile Subscribers
Third Party Provider
Corporate Network
Mobile Subscribers
Content Provider
{source: GSM Association}
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VoIP interconnection Challenges with current situation: Service providers are creating isolated islands of users that must use the PSTN to complete their calls, even if the destination is a VoIP user. Limits the utility of future VoIP applications and the full potential of lower costs.
… eCommunities Enterprise networks
PSTN Cable networks
An eCommunity user can connect to any other eCommunity user for free (pure IP), but must pay for calls sent The point of connection to the PSTN network and received from nonin regards to location of call termination eCommunity users. The same determines the cost. commonly holds for wireless and other TDM or VoIP provider customers. {source: IntelePeer ™, 2007} Prior registry approaches have failed because most registries only enable IP – IP connections: - limited economic benefits - and narrow range of total call volume
Wireless networks
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Conclusions • TISPAN adresses important NGN standardisation aspects – Security – performance (QoS) – IPTV – IP-Interconnect
• Standards are important for Telenor – For interoperability – For deployment of services – Arena for expert networking
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Telenor - here to help
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