Unleashing VoLTE capabilities. Assessing the Migration from CS Voice to IMS-based Voice over LTE (VoLTE) PDF Download
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Author: Omar Amoretti
Publisher: GRIN Verlag
ISBN: 3668219850
Category : Computers
Languages : en
Pages : 83
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Book Description
Master's Thesis from the year 2016 in the subject Computer Science - Miscellaneous, grade: 1,0, University of Applied Sciences Technikum Vienna (Telecommunications and Internet Technologies), language: English, abstract: Operator-provided voice services will gradually migrate from today’s circuit-switched (CS) voice networks to packet-switched IP networks, using Voice over LTE (VoLTE) as the foundation to provide telecom-grade telephony services. In fact, the capability of transporting Voice over IP (VoIP) services along with the provision of high-rate data throughputs, characterizes one of the critical drivers for the LTE development. This thesis presents the first implications of introducing IMS-based VoLTE in Germany, Austria and Switzerland (DACH) from a mobile operator’s perspective. Further VoLTE performance aspects such as parameter optimization and HD voice are discussed, thus serving as a basis to then analyze the DACH mobile network test results for 2014 in terms of telephony and data performance. Overall results for a DACH VoLTE trial conducted in the third quarter 2014 complement the analysis.
Author: Omar Amoretti
Publisher: GRIN Verlag
ISBN: 3668219850
Category : Computers
Languages : en
Pages : 83
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Book Description
Master's Thesis from the year 2016 in the subject Computer Science - Miscellaneous, grade: 1,0, University of Applied Sciences Technikum Vienna (Telecommunications and Internet Technologies), language: English, abstract: Operator-provided voice services will gradually migrate from today’s circuit-switched (CS) voice networks to packet-switched IP networks, using Voice over LTE (VoLTE) as the foundation to provide telecom-grade telephony services. In fact, the capability of transporting Voice over IP (VoIP) services along with the provision of high-rate data throughputs, characterizes one of the critical drivers for the LTE development. This thesis presents the first implications of introducing IMS-based VoLTE in Germany, Austria and Switzerland (DACH) from a mobile operator’s perspective. Further VoLTE performance aspects such as parameter optimization and HD voice are discussed, thus serving as a basis to then analyze the DACH mobile network test results for 2014 in terms of telephony and data performance. Overall results for a DACH VoLTE trial conducted in the third quarter 2014 complement the analysis.
Author: Miikka Poikselkä
Publisher: John Wiley & Sons
ISBN: 1119951682
Category : Technology & Engineering
Languages : en
Pages : 267
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Book Description
Describes the technological solutions and standards which will enable the migration of voice and SMS services over to LTE/EPC networks Main drivers for the introduction of Long Term Evolution of UTRAN (LTE) is to provide far better end user experience for mobile broadband services. However, service providers also need to have a clear strategy of how to offer voice and messaging services for consumers and enterprises. The voice service over LTE is becoming increasingly important when the smartphone penetration is increasing rapidly. Smartphones require both good quality voice and high speed broadband data. This book provides the exhaustive view to industry-approved technologies and standards behind the Voice over LTE (VoLTE). Whether a decision maker or technology analyst, this book explains a topic of substantial global market interest. It provides a good introduction to the technology and is useful for operators who may be deploying VoLTE, product managers responsible for VoLTE products and those who work in implementation and standardization of related technologies. Provides a comprehensive overview of industry-approved technologies and standards, providing vital information for decision makers and those working on the technology Written by authors working at the cutting edge of mobile communications technology today, bringing a mix of standards and product background, guaranteeing in-depth practical and standards information Covering the technical and practical elements of VoLTE, explaining the various approaches for providing voice services over LTE
Author: Omar Amoretti
Publisher: GRIN Verlag
ISBN: 366888501X
Category : Technology & Engineering
Languages : en
Pages : 60
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Book Description
Bachelor Thesis from the year 2013 in the subject Instructor Plans: Computing / Data Processing / IT / Telecommunication, grade: 1,0, University of Applied Sciences Technikum Vienna (Electronic Engineering), language: English, abstract: This bachelor thesis aims at providing an overview of the evolution process from the current circuit-switched (CS) voice services to those based on the IP multimedia subsystem (IMS). The timeline in question comprises the years 2013 to 2018 and takes into consideration three possible scenarios: one intermediate state and two target states, each of them presenting a particular setting in respect to the CS & IP domain mediation. Those states are subsequently evaluated according to certain predefined criteria. In addition, a complementary framework is given by the SWOT analysis which will consequently lead to the final recommendations for one of the leading European telecom organizations (the company in question is not disclosed throughout this thesis on purpose). Within this context, the major characteristics of the Austrian as well as European mobile markets are examined. Finally, the expected key assumptions and developments for the given timeframe are presented together with the particular findings of the topics previously described. As a starting point, the basic IMS architecture is presented together with its major features in respect to other current technologies. In a further step and based on the previous information, the key motivations for the transition from CS to IMS-based voice services will be discussed. In this sense, a service consistency delivered by centralized services on an access agnostic basis is assumed. For this purpose the initial state is evaluated regarding its three relevant levels: the transport/endpoint, session/control and application/service layers. Next, a more comprehensive approach, the intermediate state, is evaluated: here, the legacy SCP supports the CS&IP domain mediation via the IM-SSF. Moreover, two other target states are assessed involving the SIP AS using a reverse IM-SSF and the L2 interface respectively. Having highlighted the significant characteristics of each (future) state, attention is then drawn on the various criteria for IMS-based voice services such as roaming, handset capabilities and the like. Hence, a SWOT analysis is presented addressing the question ‘Is the deployment of the intermediate state from a technical and economic perspective recommendable? Finally, the major mobile market characteristics in Europe as well as the expected developments for the timeframe 2013 - 2018 will be described. Furthermore, the concluding recommendations are derived from the key findings throughout this thesis.
Author: Omar Amoretti
Publisher: GRIN Verlag
ISBN: 3668000905
Category : Technology & Engineering
Languages : en
Pages : 26
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Book Description
Seminar paper from the year 2015 in the subject Instructor Plans: Computing / Data Processing / IT / Telecommunication, grade: 1,5, University of Applied Sciences Technikum Vienna (Telekommunikation und Internettechnologien), course: Scientific Publications and Research in Telecommunications, language: English, abstract: The increasing gap among capacity and demand poses an important call for novel network technologies to allow mobile operators to improve performance (from the end-users’ point of view) on a cost-effective basis. In fact, Voice over Long Term Evolution (VoLTE) is a key component for an innovative set of base services defined for all-IP networks: the objective relies on making such new services as accessible as voice and SMS are nowadays, while also offering a flexible interaction with Internet applications. Indeed, LTE focus on a (rather flat) all-IP access technology aiming at delivering a bandwidth-efficient method of carrying multiple types of user traffic at the same time. In other words, the capability of deploying Voice over IP (VoIP) services, while also supporting high-rate data throughputs, characterizes one of the critical drivers for the development to LTE. Within this context, the IP Multimedia Subsystem (IMS) and Session Initiation Protocol (SIP) are essential technologies for deploying VoIP in an LTE setting. Nevertheless, the LTE RAN features are ultimately responsible for creating ‘value added’ services in relation to VoIP. Therefore, this paper illustrates in the second chapter the advantages of the IMS-based VoLTE approach as well as its (strategic) positioning compared to initial methods and over-the-top (OTT) providers. Furthermore, the third chapter explains that optimization of radio features and parameters is required to offer reliable VoLTE connections based on high success rates. This is especially important for highly-competitive markets like the Austrian telecommunication sector: annual network performance tests (conducted by the P3 Group for example) may unmask a mobile operator’s (network) vulnerabilities and critically influence its customer’s preference and the likely churn rate. Finally, conclusions are drawn based on the key findings described in this paper.
Author: Juha T. T. Salmelin
Publisher: John Wiley & Sons
ISBN: 1119974208
Category : Technology & Engineering
Languages : en
Pages : 409
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Book Description
Comprehensive coverage of IP/MPLS/Ethernet backhaul technologies and solutions for 3GPP mobile network systems such as LTE, HSPA and GPRS Focusing on backhaul from a radio network viewpoint, Mobile Backhaul combines perspectives on mobile networks and transport network technologies, focusing on mobile backhaul specific functionalities, which are essential in building modern cost efficient packet networks for mobile systems, IP, MPLS and Carrier Ethernet. The key functions required for this process, Synchronization, Resiliency, Quality of Service and Security, are also explained. The reader benefits from a view of networking technology from a radio network viewpoint, which is specific to this application, as well from a data centre and more IT-oriented perspective. The book bridges the gap between radio and backhaul viewpoints to provide a holistic understanding. Organized into two parts, the book gives an advanced introduction to the principles of the topic before moving on to more specialized areas. Part 1 gives a network level overview, with the purpose of presenting the mobile network application, its protocols, interfaces and characteristics for the backhaul. This section also presents the key packet networking technologies that are most relevant for the radio network. Part 2 offers selected case studies in Synchronization, Resiliency, QoS and Security and gives example solutions for mobile operator owned and leased mobile backhaul cases building on the network view given in Part 1. Both radio network experts and IP networking experts will benefit from the treatment of essential material at the borderline between the radio and backhaul technologies. Key features: Unique view and coverage of both the radio network and the packet mobile backhaul Includes a view into the economic motivation for a packet based mobile backhaul and discusses scenarios of a migration to the new technology Covers 2G, 3G, HSPA, HSPA+ and LTE in radio technologies as well as MWR, Sonet/SDH, Ethernet, Carrier Ethernet, MPLS and IP in networking technologies
Author: Miikka Poikselkä
Publisher: John Wiley & Sons
ISBN: 1118691164
Category : Technology & Engineering
Languages : en
Pages : 450
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Book Description
The 3rd edition of this highly successful text builds on the achievement of the first two editions to provide comprehensive coverage of IMS. It continues to explore the concepts, architecture, protocols and functionalities of IMS while providing a wealth of new and updated information. It is written in a manner that allows readers to choose the level of knowledge and understanding they need to gain about the IMS. With 35% new material, The IMS,IP Multimedia Concepts and Services, 3rd Edition has been completely revised to include updated chapters as well as totally new chapters on IMS multimedia telephony and IMS voice call continuity. Additional new material includes IMS transit, IMS local numbering, emergency sessions, identification of communication services in IMS, new authentication model for fixed access, NAT traversal and globally routable user agents URI. Detailed descriptions of protocol behaviour are provided on a level that can be used for implementation and testing. Key features of the 3rd edition: Two new chapters on IMS multimedia telephony service and IMS Voice Call Continuity Updated information on Third Generation Partnership Project (3GPP) Release 7 level, including architecture, reference points and concepts Substantially extended coverage on IMS detailed procedures Completely rewritten and extended chapters on IMS services
Author: Emmanuel Bertin
Publisher: Springer
ISBN: 3642415695
Category : Computers
Languages : en
Pages : 327
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Book Description
In the telecom world, services have usually been conceived with a specific mindset. This mindset has defined the traditional characteristics of these services; services distinguished by their linkage with the access network, tight control over service use (e.g., authentication, billing), lack of deep personalization capabilities (mass services only) and reliance on standardization to achieve end-to-end interoperability between all the actors of the value chain (e.g., operators, platform manufacturers, device manufactures). This book offers insights into this complex but exciting world of telecommunications characterized by constant evolution, and approaches it from technology as well as business perspectives. The book is appropriately structured in three parts: (a) an overview of the state-of-the-art in fixed/mobile NGN and standardization activities; (b) an analysis of the competitive landscape between operators, device manufactures and OTT providers, emphasizing why network operators are challenged on their home turf; and (c) opportunities for business modeling and innovative telecom service offers.
Author: Jean-Loup Ferrant
Publisher: John Wiley & Sons
ISBN: 1118580052
Category : Technology & Engineering
Languages : en
Pages : 304
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Book Description
This book addresses the multiple technical aspects of the distribution of synchronization in new generation telecommunication networks, focusing in particular on synchronous Ethernet and IEEE1588 technologies. Many packet network engineers struggle with understanding the challenges that precise synchronization distribution can impose on networks. The usual “why”, “when” and particularly “how” can cause problems for many engineers. In parallel to this, some other markets have identical synchronization requirements, but with their own design requirements, generating further questions. This book attempts to respond to the different questions by providing background technical information. Invaluable information on state of-the-art packet network synchronization and timing architectures is provided, as well as an unbiased view on the synchronization technologies that have been internationally standardized over recent years, with the aim of providing the average reader (who is not skilled in the art) with a better understanding of this topic. The book focuses specifically on synchronous Ethernet and IEEE 1588 PTP-based technologies, both key developments in the world of synchronization over the last 10 years. The authors address the needs of engineers and technical managers who are struggling with the subject of synchronization and provide an engineering reference for those that need to consider synchronization in NGN. The market applications that are driving the development of packet network synchronization and timing architectures are also discussed. This book provides a wide audience with everything they need to know when researching, implementing, buying and deploying packet synchronization architectures in telecommunication networks.
Author: Matthew S. Gast
Publisher: "O'Reilly Media, Inc."
ISBN: 1449357725
Category : Computers
Languages : en
Pages : 154
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Book Description
The next frontier for wireless LANs is 802.11ac, a standard that increases throughput beyond one gigabit per second. This concise guide provides in-depth information to help you plan for 802.11ac, with technical details on design, network operations, deployment, and monitoring. Author Matthew Gast—an industry expert who led the development of 802.11-2012 and security task groups at the Wi-Fi Alliance—explains how 802.11ac will not only increase the speed of your network, but its capacity as well. Whether you need to serve more clients with your current level of throughput, or serve your existing client load with higher throughput, 802.11ac is the solution. This book gets you started. Understand how the 802.11ac protocol works to improve the speed and capacity of a wireless LAN Explore how beamforming increases speed capacity by improving link margin, and lays the foundation for multi-user MIMO Learn how multi-user MIMO increases capacity by enabling an AP to send data to multiple clients simultaneously Plan when and how to upgrade your network to 802.11ac by evaluating client devices, applications, and network connections
Author: Ralf Kreher
Publisher: John Wiley & Sons
ISBN: 1118725107
Category : Technology & Engineering
Languages : en
Pages : 369
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Book Description
This extensively updated second edition of LTE Signaling, Troubleshooting and Performance Measurement describes the LTE signaling protocols and procedures for the third generation of mobile communications and beyond. It is one of the few books available that explain the LTE signaling messages, procedures and measurements down to the bit & byte level, and all trace examples are taken for a real lab and field trial traces. This book covers the crucial key performance indicators (KPI) to be measured during field trials and deployment phase of new LTE networks. It describes how statistic values can be aggregated and evaluated, and how the network can be optimized during the first stages of deployment, using dedicated examples to enhance understanding. Written by experts in the field of mobile communications, this book systematically describes the most recent LTE signaling procedures, explaining how to identify and troubleshoot abnormal network behavior and common failure causes, as well as describing the normal signaling procedures. This is a unique feature of the book, allowing readers to understand the root cause analysis of problems related to signaling procedures. This book will be especially useful for network operators and equipment manufacturers; engineers; technicians; network planners; developers; researchers; designers; testing personnel and project managers; consulting and training companies; standardization bodies.
