prof. dr nataša gospić, university belgrade 15-16 december 2009 itu-d regional workshop, cairo 1...

Prof. dr Nataša Gospić, University Belgrade

15-16 December 2009ITU-D Regional Workshop, Cairo 1

Regional Workshop on Assistance to the Arab Region for the implementation of Next Generation Networks (NGN)

Cairo (Egypt), 15-16 December 2009

The presentation provides examples of progress in deploying the NGNs technologies and taking advantage of the cost savings and service opportunities in order to assist developing counties to choose their own way


15-16 December 2009ITU-D Regional Workshop, Cairo

Operator Start Plans

BT • 2004 vision

• 2007 migration of customers

to NGN in trail areas Wales

• Full migration in 2011

France Telecom

2005, NGN plans in France Telecom strategy

• France Telecom aims to have fully integrated its IT and networks into an NGN/IMS architecture by 2008 • To begin offering new NGN/IMS convergent services from 2008 onwards.

KPN March 2005 NGN Strategy KPN hopes to complete its NGN backbone and the majority of its access network by 2010

SA Telecom • NGN strategy in 2006. • From 2008, Telkom SA begins selective PSTN migrations and increase core bandwidth to 10Gbps

• Anticipates full migration beyond 2011.

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“Delivering the future - BT’s 21st Century Network” Software driven network with new, simpler

portfolio of NGN services Platform for innovation to put flexibility and

choice in the hands of customers Being deployed in UK BT serves markets in 172 countries: maximum

consistency globally


BT 21 CN Advanced network based on intelligent systems using

key technologies: IP is key as common transport protocol for all types of

communication and applications SIP allows service provider to control the communications

activity to meet a customer’s requirements MPLS enables the efficient designation and routing of BB IP

traffic flows IP Multi-media Sub-system (IMS) to support innovative

services Also: SDH, Virtual LAN, WDM

“With the migration of its network to NGN (21 Century Network), BT expects savings in operating expenses of £1bn (about 1.5bn €) starting 2008/09. The expected investment amounts to £10bn (about 15bn €) “(KIRSCH, HIRSCHHAUSEN, 2008).



Source: France Telecom

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IMS is central to plans: once in place, will deploy fixed and mobile IP-based services, starting with simple voice services and moving to VoIP-based IP Centrex, wireless virtual PBX and messaging services

Issues: regulatory confusion How are VoIP calls classified and charged for?

Is it voice, or is it data? Net neutrality and IP interconnect: who gets

paid for what when an incumbent shares its network with 3rd party service providers?


• KPN estimated that the network would require an additional €1.5 billion in capex. KPN focused on building an all-IP backbone first and then an all-IP access network on top of this. The backbone is now largely completed and the access network underway. KPN has revised its capex spend for the transformation to €0.9 billion.

• “expects a reduction in operating costs of €850 million up to 2009 while the total capital expenses for the migration are estimated to be €0.9 billion. The extension of fiber to the street cabinets renders the MDFs obsolete. About 200 of the 1,391 MDF locations will remain in operation as interconnection points to the backbone (HENDRIKS, 2007, OPTA, 2006b). KPN expects an additional revenue of €1 billion from sales of the MDF real estate “ (KIRSCH, HIRSCHHAUSEN, 2008).



2005-07

2006-09

2007-10

2009-13

Telefónica

Orange Swisscom

Telecom Italia

BT

KPN

Learn through niche applications

Expand reach of IMS breadth deploying BB VoIP

Add innovative services pushing multimedia enablement

Move to a single converged service control

Source: Operators sites

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Shenzhen NGN commercial pilot network represents the largest achievement in bringing about the evolution of PSTN from its current state, to that of NGN. In this network, the softswitch acts as the control center, the SHLR acts as the data center, and the ENIP acts as the unified service platform. The overall capacity of the entire network reaches up to 600,000 lines/300,000 trunks, with 150,000 actual subscribers accessed through AGs. Some of the reasons to be proud would include the following: It greatly improves network performance. At present, it gives birth to the largest NGN end office (33,000 lines). It breaks Shenzhen Telecom’s current record of PSTN end office cutover efficiency. Two

end offices (42,000 lines in total) were cut over with high QoS in two consecutive days. From equipment installation to operation after cutover, it takes less than 20 days.

It boasts the largest commercial IP Centrex group in the world. Only, RBT, UC, and Real-Time multimedia services exhibit similar vitality.

As an intelligence platform, it provides new intelligent phone call services and other value-added services for its three million AND subscribers in the network.

THE PROJECT STARTED IN 2002 by China Telecom and finished in 2005. (Huawei Service, Multimedia library, Issue 20, 2005).

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On September 18, 2004 the first NGN end office was established in Fuyong. Some 15,000 subscribers from the original TDM switch were transferred to the NGN network in a matter of minutes. Although the cutover lasted less than 10 minutes, it was a historical moment in the development of the China telecommunications network, because it marked the first time that NGN was able to replace the TDM end offices in the PSTN

Three more end offices (the Boling office - 16,400 lines, Nanyou office - 26,000 lines, and Huangmugang office - 33,000 lines) were cutover within half a year.

The cutover of these four offices were quick and orderly, and perhaps are best exemplified by the idea -- "from suburb to downtown"and "from small to large".

By April 2005, Shenzhen Telecom successfully established a commercial NGN that accommodates more than 150,000 subscribers


While rebuilding the end office, the idea of NGN to separate call control from media bearer was brought into actual play.

For the first time, high-capacity AGs were put into the original TDM switch room. As a result, subscribers under the original TDM switch were successfully transferred to the AGs within a matter of minutes.

Furthermore, the AGs inherited all the access modes of the traditional TDM network such as; ordinary subscriber line, long-distance subscriber line, polarity reversal subscriber line, ISDN subscriber line, analog PBX trunk, digital PBX trunk, and V5 trunk.

Also, the end users were shielded so that they were not aware of any changes in the core network. As for operation and maintenance, the distributed client mode was adopted in order to retain the original maintenance habit.


Schenzhen Telecom “Improved network operation quality: Operation records from the

four NGN end offices of Shenzhen Telecom are convincing proof of an improved network operation quality. For instance, the 33,000-line Huangmugang office (the NGN end office with the largest capacity) serves as a good example. The operation indices from the NGN end office are much better than those of the original office, and the call completion rate showed an increase of 12%. Even with an increase in traffic, the softswitch system continued to run stably and the indices were much improved.

Lower maintenance cost: After the original end office was converted into an NGN end office, indices like integrity, occupied space, and power consumption of the NGN equipment proved to be superior to those of the original TDM switch. After rebuilding, the occupied space was reduced by 40%, and power consumption by 63%. Hence, in a large-scale NGN, the maintenance cost will obviously be much lower. With its innate advantages in services like, IP Centrex and video services, NGN will quickly become the first choice in the rebuilding of the TDM network.” (Huawei Service, Multimedia library, Issue 20, 2005).


China Netcom's Beijing Branch (Beijing Netcom) - April 2007 First commercial IMS network in China Includes IP-Centrex solution IMS multimedia telephony system

provides value-added services with the main focus on IP-Centrex targeting enterprise customers


Beijing Netcom: To provide telecom-quality cost-efficient IP

multimedia services addressing the needs of high-end enterprise users in Beijing area now and in the future.

Supports introduction of new multimedia services (voice, data,audio, video) to enhance user experience in Beijing area,including visitors and participants in the 2008 Olympic Games


Korea can serve as a good example for developing countries in whole or in part in this arena as it is in the midst of migrating to its own next generation network referred to as BcN or Broadband Convergence Network.

The key drivers of deploying NGN



Source: National Information Society Agency (NIA)

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The BcN Roadmap shows the different phases in the different networks that incorporate the whole BcN. From 2004 and 2005, four consortiums were formed (made up of major

telecom companies and local cable companies who all had a stake in nurturing the market) and first set up pilot projects/test beds in order to test potential applications and business models of convergence services including video phones, IPTV, VoIP, wireless sensor networking, etc.

A public-private-partnership (PPP) model has been activated in the implementation of the BcN. This basically means the private sector builds and commercializes networks and services, whereas the government arranges laws, polices and the necessary standardization conditions for new services.

Source: National Information Society Agency (NIA)

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Telefónica SA, Spain “Mobile Attendant” service provides

personalised, reliable, easy-to-use advanced communications experience across wireless and wireline networks Integrates voice, video, text and data into one

seamless communications environment, part of Telefónica's vision linking fixed and mobile networks together to deliver a converged communications experience


PC software manages calls running on GSM or 3G phones via a simple graphical interface to handle, e.g., simultaneous calls, transfers, multi-party conferencing

Can simultaneously run multimedia sessions from PC including presence and reachability messaging updates

Future: add a Personal Assistant with capabilities to enhance productivity for field-based and highly mobile personnel


176,000 lines migrated to NGN Anticipated would require >5 years to implement

but went considerably faster Migration didn’t disrupt normal service Now customers can connect to Batelco BB internet

same day vs. one week NGN delivers on promise to bring affordable BB

access to all households making Bahrain among the best connected in the world



New services are based on the NGN and IMS architecture. Strategy

parallel existance of TDM and NGN network till full migration to NGN (Year 2012.)

75.000 PSTN users are migrated to Softswitch using MSAN platform - preserving all PSTN services (the end of the 2008).

Solutions consisting of IMS Core elements and Softswitch NGN Techno-Economic Aspects

Investment protection Costs reduction (capital and operational) Carrier grade reliability Scalability Improved product selection Increase usage of the existing network infrastructure Speed of innovation and introduction of services

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Full migration of PSTN users from TDM to NGN using MSAN and Softswitch platform (2012.)

Offering new services: Video Call, Video Conference, Unified Messaging, Presence and Instant Messaging etc.

Interconnection with the international VoIP networks

FMC - Fixed Mobile Convergence

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Every country’s situation is different with their own distinct unique market and environmental factors

Costs and financial support are vital and can not be ignored

Public-private partnership Local initiatives Developing countries should be encourage

to take a part in international effort to develop best migration path to NGN


15-16 December 2009 Regional Workshop on NGNCairo, Egypt

THANK YOU FOR YOUR ATTENTION!

Prof. dr Natasa GospicProf. dr Natasa GospicUniversity BelgradeUniversity Belgrade

Tel: +381 11 3091310Email [email protected]

prof. dr nataša gospić, university belgrade 15-16 december 2009 itu-d regional workshop, cairo 1...

Documents

itud regional workshop

entire network

network performance

ngn backbone

allip access network

ngn plans

ngn strategykpn

access network underway