The document discusses next generation networks (NGN) and the IP Multimedia Subsystem (IMS). It defines NGN as a packet-based network that provides telecommunication services to users using multiple broadband transport technologies. Key characteristics of NGN include supporting a wide range of real-time and non-real-time services, broadband capabilities with end-to-end quality of service, and independence from underlying transport technologies. The document also outlines some of the challenges in deploying NGN, such as quality of service and security issues, and provides a high-level overview of the NGN architecture.
- NGN provides a single IP-based network framework to support all telecommunication services, replacing separate legacy networks. This reduces costs and simplifies service provisioning.
- Key components include softswitches, media gateways, signaling gateways, and IP/MPLS core. Softswitches provide call control while gateways interface with legacy networks.
- Migration involves replacing legacy network elements with NGN elements over time while reusing existing infrastructure and ensuring equivalent service quality and capabilities.
Next Generation Networks (NGN) aim to converge existing telephone, data and wireless networks into a single IP-based network capable of providing multiple services. NGN has a packet-based architecture with decoupled service and transport layers for flexibility. It supports a wide range of services and generalized mobility. BSNL is working to implement NGN in India through the National Centre for Next Generation Network. NGN provides advantages for both customers and service providers by combining all communication services.
This document provides an overview of Next Generation Networks (NGN). It defines NGN as a packet-based network that provides telecommunication services and allows for multiple broadband transport technologies. The document discusses NGN standardization by organizations like ITU-T, convergence towards NGN through the integration of networks like PSTN and mobile, and the softswitch-based NGN architecture featuring components like media gateways, application servers, and media servers.
The document discusses next generation networks (NGN) and convergence. It defines NGN as a packet-based network that can provide telecommunication services using multiple broadband access technologies and QoS-enabled transport, with service functions independent from underlying transport technologies. NGN simplifies networks and uses an IP-based core with separation of transport and service layers. The document also discusses how convergence is occurring at the network, service, industry, and device levels, and how convergence and NGN allow services to be accessed seamlessly across different networks through multiple platforms.
This document provides an introduction to 4th generation (4G) wireless networks. It discusses the history and evolution of previous mobile technologies (1G, 2G, 3G). 4G aims to provide higher data rates, seamless coverage, and support for multimedia services through an all-IP based network. The document outlines some key design objectives and technologies for 4G including addressing issues like heterogeneous networks, mobility management, quality of service, and security. It also discusses applications and challenges of 4G such as billing across multiple operators and reconfigurable terminal technology.
The document discusses next generation networks (NGN) and the IP Multimedia Subsystem (IMS). It defines NGN as a packet-based network that provides telecommunication services to users using multiple broadband transport technologies. Key characteristics of NGN include supporting a wide range of real-time and non-real-time services, broadband capabilities with end-to-end quality of service, and independence from underlying transport technologies. The document also outlines some of the challenges in deploying NGN, such as quality of service and security issues, and provides a high-level overview of the NGN architecture.
- NGN provides a single IP-based network framework to support all telecommunication services, replacing separate legacy networks. This reduces costs and simplifies service provisioning.
- Key components include softswitches, media gateways, signaling gateways, and IP/MPLS core. Softswitches provide call control while gateways interface with legacy networks.
- Migration involves replacing legacy network elements with NGN elements over time while reusing existing infrastructure and ensuring equivalent service quality and capabilities.
Next Generation Networks (NGN) aim to converge existing telephone, data and wireless networks into a single IP-based network capable of providing multiple services. NGN has a packet-based architecture with decoupled service and transport layers for flexibility. It supports a wide range of services and generalized mobility. BSNL is working to implement NGN in India through the National Centre for Next Generation Network. NGN provides advantages for both customers and service providers by combining all communication services.
This document provides an overview of Next Generation Networks (NGN). It defines NGN as a packet-based network that provides telecommunication services and allows for multiple broadband transport technologies. The document discusses NGN standardization by organizations like ITU-T, convergence towards NGN through the integration of networks like PSTN and mobile, and the softswitch-based NGN architecture featuring components like media gateways, application servers, and media servers.
The document discusses next generation networks (NGN) and convergence. It defines NGN as a packet-based network that can provide telecommunication services using multiple broadband access technologies and QoS-enabled transport, with service functions independent from underlying transport technologies. NGN simplifies networks and uses an IP-based core with separation of transport and service layers. The document also discusses how convergence is occurring at the network, service, industry, and device levels, and how convergence and NGN allow services to be accessed seamlessly across different networks through multiple platforms.
This document provides an introduction to 4th generation (4G) wireless networks. It discusses the history and evolution of previous mobile technologies (1G, 2G, 3G). 4G aims to provide higher data rates, seamless coverage, and support for multimedia services through an all-IP based network. The document outlines some key design objectives and technologies for 4G including addressing issues like heterogeneous networks, mobility management, quality of service, and security. It also discusses applications and challenges of 4G such as billing across multiple operators and reconfigurable terminal technology.
Connect - Using SDN to drive the development of Network Aware Services. Prof ...Walton Institute
The document discusses applying SDN to manage communications networks. It notes that new generation networks will require independent virtual service networks that interact with heterogeneous infrastructure networks. SDN can provide programmable network substrates to allow services to configure resources and routing. Key research areas include wireless virtualization, service-aware networks, and applying SDN and virtualization to emerging areas like the Internet of Things.
5G will be the next generation of wireless technology that will provide faster and more user-friendly communication. It will use a converged system integrating multiple access technologies. 5G will use a flat IP architecture, nanotechnology, and cloud computing. The network will consist of a radio access network connecting users to the core network. 5G aims to provide true wireless broadband access to support applications requiring low latency. It will allow different radio access networks to evolve independently of the core network. Nanotechnology will make 5G equipment smaller and more secure while cloud computing will store and manage data over the internet. The 5G network architecture is expected to change how people live and work by providing ubiquitous high-speed connectivity.
NGN Overview provides information on Next Generation Networks (NGNs) including:
1. NGNs represent a transition to providing both basic voice and enhanced communications services using packet-based networks that can support multiple broadband and quality of service enabled transport technologies, with service functions independent of underlying transport.
2. Key definitions from ITU-T include that NGNs are packet-based networks that enable access to networks and services, support generalized mobility, and make services independent of transport technologies.
3. NGN characteristics include packet-based transfer separation, service building blocks, generalized mobility, access independence, and support of multiple technologies and service providers.
The document discusses next generation networks (NGNs) and summarizes key points from a summer internship project report on NGNs. It describes NGNs as packet-based networks that can provide telecommunication services and quality of service using multiple broadband technologies. The document outlines objectives to study the transition to NGNs, key drivers of development, transport mechanisms, building blocks including media gateways and application servers, protocols, NGNs as converged networks, and services/applications including chat, messaging and video.
This document outlines the course DCN 330 which covers data communication and network interconnectivity, including distinguishing network devices, analyzing network designs, quality of service, cloud computing, and gaining hands-on experience through lectures, labs, and a course project using tools like Cisco Packet Tracer and lab equipment. Students will be evaluated through exams, quizzes, lab assignments, and a course project presentation and report.
DCCN 2016 - Technologies for next generation networksrudndccn
This document summarizes a lecture on technology enablers for next-generation mobile networks. The lecture covered the evolution of wireless communication systems and defined the main goals of 5G networks, including high data rates, low latency, high connection density, and energy efficiency. Key 5G technology enablers discussed included intelligent use of multiple radio access technologies, network densification, millimeter wave communications, massive MIMO, dynamic spectrum sharing, device-to-device communication, and virtualized network architectures. The lecture also described a full-scale 4G testbed at Brno University of Technology used to develop and test new 5G services like proximity-based D2D communication.
Pervasive Internet and the Push Towards ConvergenceBrenda Bell
ACGNJ Main Meeting presentation on the evolution of mobile data and Internet availability, with a view towards what 5G will mean for both stationary and mobile data access
5G technology provides wireless connectivity at speeds up to 1Gbps, which is much faster than current 4G networks. It uses a flat IP architecture and nanotechnology to create a 5G nanocore. 5G will allow for improved mobile broadband services and connectivity of devices. It aims to offer applications requiring high bandwidth and low latency like augmented and virtual reality. 5G aims to deliver enhanced mobile broadband services and improve connectivity of wireless devices.
The document discusses the need for reliable high-quality video transmission infrastructure but notes existing infrastructure is limited. It also notes wired infrastructure has high costs and deployment challenges. Wireless solutions can help overcome these issues by providing flexible, scalable networks to support various applications like traffic management, education, surveillance and more. Private wireless networks also offer reliability, security and control compared to public networks.
Lawful interception monitoring using distributed architecture for ngn 2IAEME Publication
The document proposes a distributed architecture for lawful interception in Next Generation Networks (NGNs). It discusses the challenges of intercepting communications in complex IP-based networks. The proposed architecture is hierarchical, with a Central LI Entity connecting to Intermediate LI Entities that connect to Base LI Entities located at service provider gateways. This distributed approach reduces processing load while allowing centralized control and administration through the Central LI Entity. An example SIP-H323 call flow is discussed to demonstrate how lawful interception could be implemented using this architecture in heterogeneous networks.
This document provides an introduction to 5G technology, including its key concepts, architecture, hardware, software, features, advantages and applications. 5G is expected to offer speeds up to 1 Gbps, 10 times more capacity than 4G, and be more fast and reliable. The 5G architecture will utilize open wireless and transport protocols. While 5G promises to enable a global wireless world with high connectivity, some are concerned about potential safety issues from higher frequency exposure. The first commercial 5G device was recently launched in the US. 5G applications may include wearable AI devices, media handovers, and voice over IP.
Mobile systems face challenges when connecting to Next Generation Networks (NGN) due to differences between circuit-switched mobile networks and the IP-based NGN. A new Base Station Gateway is proposed to provide these connections. NGN aims to reduce costs and offer integrated services via common IP technology, while mobile networks have evolved through generations based on circuit switching and packet technologies. Connecting mobile networks to the NGN backbone allows access to NGN services but requires protocol conversion through mobile media gateways.
CALL FOR PAPERS - International Journal of Next-Generation Networks(IJNGN)ijp2p
Next Generation Network (NGN) transports all information and services such as voice, data and media by encapsulating these into packets. Limitations of Internet era can be overcome by Nextgeneration network protocols and their advanced features and technologies. Research and development on Next-Generation Network (NGNs) have been carried out over the last few years. The International Journal of Next- Generation Network (NGN) is an open access peer-reviewed journal
This is the second part of my 5G project which consists of the architecture structure of 5G. What all it consists of, what all technologies it uses, what all layers it contain etc.
We are looking at the future of technology that has the structure of Nanocore, beneficial for future applications.
Mr. Tareq Amin currently serves as CTO of Rakuten Mobile Network. Currently at Rakuten Mobile Network, he is implementing disruptive initiatives such as; a next-generation cloud native network, an end-to-end automated OSS/BSS, edge computing for enhanced CX and new age applications, open & virtualized disaggregated RAN, and a simplified HW deployment for an any service/anywhere approach. These initiatives are the building blocks to a modern day network that has the ability to evolve at the pace of technology innovation.
To the 5th Generation? The Future of Mobile CommunicationsMarc NGIAMBA
The document summarizes Nigel Jefferies' presentation on the future of mobile communications and 5G. Some key points:
- Jefferies discusses Huawei's position as a leading ICT provider and its R&D centers worldwide.
- The Wireless World Research Forum (WWRF) develops visions for the future of wireless technologies. Its vision is for 7 trillion wireless devices serving 7 billion people by 2020.
- Research directions for 5G include new radio link technologies to increase spectral efficiency by over 2x, small cells and dense heterogeneous networks, and device-to-device communications.
- Technologies like coordinated multi-site MIMO, cognition, and virtual relays could enable the goals of 5G
The document discusses key concepts related to Next Generation Networks (NGN). It describes the NGN reference architecture which includes a transfer network to carry information flows, a network control for establishing links, and service control related to the final service provided to users. It also discusses NGN services, quality of service parameters, mobility, nomadism, presence management, resource control, identification and authentication, metering and monitoring, and security issues in NGN. Finally, it provides examples of NGN soft switch architecture and BSNL's migration strategy to NGN.
The document provides information about Muhammad Muzammil and his role at National Telecommunication Corporation (NTC) in Islamabad, Pakistan. It then summarizes NTC's profile, including its establishment in 1996 to meet government communication needs, initial infrastructure of 5 exchanges and analog microwave, and ongoing upgrades to its fiber backbone, switching network, billing system, and multi-service data network. Current services offered by NTC include telephone, internet, intranet solutions, and wireless local loop services.
Connect - Using SDN to drive the development of Network Aware Services. Prof ...Walton Institute
The document discusses applying SDN to manage communications networks. It notes that new generation networks will require independent virtual service networks that interact with heterogeneous infrastructure networks. SDN can provide programmable network substrates to allow services to configure resources and routing. Key research areas include wireless virtualization, service-aware networks, and applying SDN and virtualization to emerging areas like the Internet of Things.
5G will be the next generation of wireless technology that will provide faster and more user-friendly communication. It will use a converged system integrating multiple access technologies. 5G will use a flat IP architecture, nanotechnology, and cloud computing. The network will consist of a radio access network connecting users to the core network. 5G aims to provide true wireless broadband access to support applications requiring low latency. It will allow different radio access networks to evolve independently of the core network. Nanotechnology will make 5G equipment smaller and more secure while cloud computing will store and manage data over the internet. The 5G network architecture is expected to change how people live and work by providing ubiquitous high-speed connectivity.
NGN Overview provides information on Next Generation Networks (NGNs) including:
1. NGNs represent a transition to providing both basic voice and enhanced communications services using packet-based networks that can support multiple broadband and quality of service enabled transport technologies, with service functions independent of underlying transport.
2. Key definitions from ITU-T include that NGNs are packet-based networks that enable access to networks and services, support generalized mobility, and make services independent of transport technologies.
3. NGN characteristics include packet-based transfer separation, service building blocks, generalized mobility, access independence, and support of multiple technologies and service providers.
The document discusses next generation networks (NGNs) and summarizes key points from a summer internship project report on NGNs. It describes NGNs as packet-based networks that can provide telecommunication services and quality of service using multiple broadband technologies. The document outlines objectives to study the transition to NGNs, key drivers of development, transport mechanisms, building blocks including media gateways and application servers, protocols, NGNs as converged networks, and services/applications including chat, messaging and video.
This document outlines the course DCN 330 which covers data communication and network interconnectivity, including distinguishing network devices, analyzing network designs, quality of service, cloud computing, and gaining hands-on experience through lectures, labs, and a course project using tools like Cisco Packet Tracer and lab equipment. Students will be evaluated through exams, quizzes, lab assignments, and a course project presentation and report.
DCCN 2016 - Technologies for next generation networksrudndccn
This document summarizes a lecture on technology enablers for next-generation mobile networks. The lecture covered the evolution of wireless communication systems and defined the main goals of 5G networks, including high data rates, low latency, high connection density, and energy efficiency. Key 5G technology enablers discussed included intelligent use of multiple radio access technologies, network densification, millimeter wave communications, massive MIMO, dynamic spectrum sharing, device-to-device communication, and virtualized network architectures. The lecture also described a full-scale 4G testbed at Brno University of Technology used to develop and test new 5G services like proximity-based D2D communication.
Pervasive Internet and the Push Towards ConvergenceBrenda Bell
ACGNJ Main Meeting presentation on the evolution of mobile data and Internet availability, with a view towards what 5G will mean for both stationary and mobile data access
5G technology provides wireless connectivity at speeds up to 1Gbps, which is much faster than current 4G networks. It uses a flat IP architecture and nanotechnology to create a 5G nanocore. 5G will allow for improved mobile broadband services and connectivity of devices. It aims to offer applications requiring high bandwidth and low latency like augmented and virtual reality. 5G aims to deliver enhanced mobile broadband services and improve connectivity of wireless devices.
The document discusses the need for reliable high-quality video transmission infrastructure but notes existing infrastructure is limited. It also notes wired infrastructure has high costs and deployment challenges. Wireless solutions can help overcome these issues by providing flexible, scalable networks to support various applications like traffic management, education, surveillance and more. Private wireless networks also offer reliability, security and control compared to public networks.
Lawful interception monitoring using distributed architecture for ngn 2IAEME Publication
The document proposes a distributed architecture for lawful interception in Next Generation Networks (NGNs). It discusses the challenges of intercepting communications in complex IP-based networks. The proposed architecture is hierarchical, with a Central LI Entity connecting to Intermediate LI Entities that connect to Base LI Entities located at service provider gateways. This distributed approach reduces processing load while allowing centralized control and administration through the Central LI Entity. An example SIP-H323 call flow is discussed to demonstrate how lawful interception could be implemented using this architecture in heterogeneous networks.
This document provides an introduction to 5G technology, including its key concepts, architecture, hardware, software, features, advantages and applications. 5G is expected to offer speeds up to 1 Gbps, 10 times more capacity than 4G, and be more fast and reliable. The 5G architecture will utilize open wireless and transport protocols. While 5G promises to enable a global wireless world with high connectivity, some are concerned about potential safety issues from higher frequency exposure. The first commercial 5G device was recently launched in the US. 5G applications may include wearable AI devices, media handovers, and voice over IP.
Mobile systems face challenges when connecting to Next Generation Networks (NGN) due to differences between circuit-switched mobile networks and the IP-based NGN. A new Base Station Gateway is proposed to provide these connections. NGN aims to reduce costs and offer integrated services via common IP technology, while mobile networks have evolved through generations based on circuit switching and packet technologies. Connecting mobile networks to the NGN backbone allows access to NGN services but requires protocol conversion through mobile media gateways.
CALL FOR PAPERS - International Journal of Next-Generation Networks(IJNGN)ijp2p
Next Generation Network (NGN) transports all information and services such as voice, data and media by encapsulating these into packets. Limitations of Internet era can be overcome by Nextgeneration network protocols and their advanced features and technologies. Research and development on Next-Generation Network (NGNs) have been carried out over the last few years. The International Journal of Next- Generation Network (NGN) is an open access peer-reviewed journal
This is the second part of my 5G project which consists of the architecture structure of 5G. What all it consists of, what all technologies it uses, what all layers it contain etc.
We are looking at the future of technology that has the structure of Nanocore, beneficial for future applications.
Mr. Tareq Amin currently serves as CTO of Rakuten Mobile Network. Currently at Rakuten Mobile Network, he is implementing disruptive initiatives such as; a next-generation cloud native network, an end-to-end automated OSS/BSS, edge computing for enhanced CX and new age applications, open & virtualized disaggregated RAN, and a simplified HW deployment for an any service/anywhere approach. These initiatives are the building blocks to a modern day network that has the ability to evolve at the pace of technology innovation.
To the 5th Generation? The Future of Mobile CommunicationsMarc NGIAMBA
The document summarizes Nigel Jefferies' presentation on the future of mobile communications and 5G. Some key points:
- Jefferies discusses Huawei's position as a leading ICT provider and its R&D centers worldwide.
- The Wireless World Research Forum (WWRF) develops visions for the future of wireless technologies. Its vision is for 7 trillion wireless devices serving 7 billion people by 2020.
- Research directions for 5G include new radio link technologies to increase spectral efficiency by over 2x, small cells and dense heterogeneous networks, and device-to-device communications.
- Technologies like coordinated multi-site MIMO, cognition, and virtual relays could enable the goals of 5G
The document discusses key concepts related to Next Generation Networks (NGN). It describes the NGN reference architecture which includes a transfer network to carry information flows, a network control for establishing links, and service control related to the final service provided to users. It also discusses NGN services, quality of service parameters, mobility, nomadism, presence management, resource control, identification and authentication, metering and monitoring, and security issues in NGN. Finally, it provides examples of NGN soft switch architecture and BSNL's migration strategy to NGN.
The document provides information about Muhammad Muzammil and his role at National Telecommunication Corporation (NTC) in Islamabad, Pakistan. It then summarizes NTC's profile, including its establishment in 1996 to meet government communication needs, initial infrastructure of 5 exchanges and analog microwave, and ongoing upgrades to its fiber backbone, switching network, billing system, and multi-service data network. Current services offered by NTC include telephone, internet, intranet solutions, and wireless local loop services.
Semelhante a Lecture 02.pptx on next generation networking (20)
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...Diana Rendina
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
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This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
2. Agenda
• Introduction
• Existing Network Infrastructure and convergence towards the NGN
• NGN: Definition and Architecture
• NGN and Protocols
• NGN Services
• Conclusions
3. Introduction
• Today, telephony, the Internet, and the cellular mobile networks
continue to be different domains, each has its own protocols and
services.
• NGN will be the foundation for the creation of a new range of
multimedia applications that takes full advantage of the
characteristics of the broadband network and the “always on”
capability.
4. General Idea
• The general idea behind the NGN is that one network transports all
type of data and provide services (voice, data, and all sorts of media
such as video) by encapsulating these into packets, similar to those
used on the Internet.
• NGNs are commonly built around the Internet Protocol (IP), and
therefore the term all IP is also sometimes used to describe the
transformation toward NGN.
5. NGN ITU-T’s Definition
• “ A next-generation network (NGN) is a packet-based network which
can provide services including Telecommunication Services and able
to make use of multiple broadband, quality of Service-enabled
transport technologies and in which service-related functions are
independent from underlying transport-related technologies. It offers
unrestricted access by users to different service providers. It supports
generalized mobility which will allow consistent and unrestricted
provision(access) of services to users. “
6. NGN definition and basic features
• A NGN is a packet-based network able to provide telecommunication services and able to
make use of multiple broadband, QoS-enabled transport technologies and in which service-
related functions are independent from underlying transport-related technologies.
• It enables unfettered access for users to networks and to competing service providers
and/or services of their choice. It supports generalized mobility which will allow consistent
and ubiquitous provision of services to users.
7. Convergence Towards the NGN
• Today’s network is divided into:
• The Public Switched Telephone Network,
• The packet Switched Networks(e.g. the Internet) and
• The Mobile networks.
• Convergence is the process of interconnection of traditional switched
circuit networks (the PSTN and mobile networks) and packet-switched
networks based on the Internet Protocol (IP) for routing.
8. NGN Architecture
• A basic architecture was defined comprising Network Elements
needed for the provision of traditional Telephony services.
• Each element has distinct roles within the network and is designed to
integrate horizontally with other elements in the same layer, as well
as vertically with the function-based elements of the other layers.
• The Next Generation Networks architecture is based on four layers:
Access layer, Core layer, Control layer and Service layer.
9. NGN Layers
• 1-Access layer elements includes different Media Gateways that
support connection to and from the access network with the core
network.
• 2-Core layer is the network handling converged services based on IP.
• 3-Control layer is the call server that provides call control functions
and also provides the control of the Media Gateway.
• 4-Service layer is an IT platform that plays the role of an IN-SCE
(Intelligent Network Service Creation Environment) extending their
functionality in order to cover the new network scenarios
14. An example of NGN implementation
(Layered Architecture)
15. Some key NGN architectural challenges
• Application-driven QoS:
• QoS classes
• Explicit bandwidth selection
• Mapping & control from Service to Transport
• Flow awareness (monitoring, accounting)
• Mobility
• Seamless handover
• Fixed Mobile Convergence (FMC)
• Scalability
• Multicast
• Ubiquitous networking
• Flexibility
• Support of new services and business models
16. NGN & Protocols
• Next Generation Networks require new protocols to support
converged networks.
• Requirements
• Support for legacy PSTN interworking, Migration Plan from legacy to
NGN, High availability, Lifeline services and Scalability
• With so many protocols, which one to choose?
• H.323,SIP(Session Initiation Protocol), MGCP(Media Gateway Control
Protocol), SIGTRAN
17. NGN Services
• Several services that will be important drivers in the NGN
environment are:
• 1-Voice Telephony: Call Waiting, Call Forwarding, 3-Way Calling
• 2-Voice Portal: Provide callers with anywhere, anytime access to
information like news, weather, stock quotes, and account balances
using simple voice commands and any telephone,..
• 3-Data services: bandwidth-on-demand, connection reliability.
18. NGN Services
• Multimedia services: This allows customers to converse with each
other while displaying visual information.
• 5-Virtual Private Networks: allow large, geographically dispersed
organizations to combine their existing private networks with
portions of the PSTN, thus providing subscribers with uniform dialing
capabilities.
• 6-Public Network Computing: Provides public network-based
computing services for businesses and consumers.
19. NGN Services
• 7-Unified Messaging: Supports the delivery of voice mail, email, fax mail,
and pages through common interfaces.
• 8-E-Commerce: Allows consumers to purchase goods and services
electronically over the network.
• 9-Call Center Services: A subscriber could place a call to a call center agent
by clicking on a Web page.
• 10-Interactive gaming: Offers consumers a way to meet online and
establish interactive gaming sessions.
• 11-Home Manager: These services could monitor and control home
security systems, energy systems, home entertainment systems, and other
home appliances.
20.
21. Conclusion
• Next generation networks are not just a PSTN replacement but at a
minimum they must provide the equivalent voice quality and
reliability of today’s PSTN.
• The NGN will be the foundation for the creation of a new range of
multimedia applications that take full advantage of the characteristics
of the broadband network and the “always on” capability.
• The creation of the NGN is no overnight transformation, but it is an
evolution that is already underway and gathering pace.
• The NGN is the shift from separate application-specific networks to a
single network capable of carrying any and all services.