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Mobilecommunication systems — Standards. Global system for mobile communications. Long-Term Evolution Telecommunications I. Toskala, Antti.

L78 Contents xi 8. Contents xiii Contents xv PrefaceThe number of mobile subscribers has increased tremendously in recent years. Voicecommunication has become mobile in a massive way and the mobile is the preferredmethod of voice communication. Average data consumption exceedshundreds of megabytes and even a few gigabytes per subscriber per month. Operators request high data capacity withlow cost of data delivery. The book is structured as follows. Chapter 1 presents the introduction. The standard-ization background and process is described in Chapter 2.

Mobility aspects areaddressed in Chapter 7 and the radio resource management in Chapter 8.

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Radio and end-to-end performanceis illustrated in Chapter 10 followed by the measurement results in Chapter The back-haul network is described in Chapter Voice solutions are presented in Chapter Chapter 14 explains the 3GPP performance requirements. Thelarge potential market can attract a large number of companies to the market place pushingthe economies of scale that enable wide-scale LTE adoption with lower cost.

This book isparticularly designed for chip set and mobile vendors, network vendors, network operators,application developers, technology managers and regulators who would like to gain adeeper understanding of LTE technology and its capabilities. We are grateful to our families, as well as the families of all the authors, for theirpatience during the late-night and weekend editing sessions.

The editors and authors welcome any comments and suggestions for improvements orchanges that could be implemented in forthcoming editions of this book. Morethan a million new subscribers per day have been added globally — that is more than tensubscribers on average every second. This growth is illustrated in Figure 1. Mobile voice isnot the privilege of the rich; it has become affordable for users with a very low income. As anexample, a European country with three operators Finland is illustrated in Figure 1.

The HSDPA service was launched during ; data volume exceeded voice volumeduring and the data volume was already ten times that of voice by High Speed Downlink Packet Access data growth is driven by1The actual user penetration can be different since some users have multiple subscriptions and some subscriptionsare shared by multiple users. ISBN: Inshort, the introduction of HSDPA has turned mobile networks from voice-dominated topacket-data-dominated networks. A typical voice subscriber uses minutes per month, which is equal to approximately30 megabytes of data with the voice data rate of A broadband data user caneasily consume more than megabytes 1 gigabyte of data.

Broad-band internet connections will be available practically anywhere in the world. Already,existing wireline installations can reach approximately one billion households and mobilenetworks connect more than three billion subscribers.

These installations need to evolveinto broadband internet access. Figure 1. Interestingly,the shape of the evolution curve is similar in both domains with a relative difference ofapproximately 30 times.

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Wireless networks must push data rates higher to match the user experience that wire-line networks provide. Customers are used to wireline performance and they expect thewireless networks to offer comparable performance. Applications designed for wirelinenetworks drive the evolution of the wireless data rates.

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Wireless solutions also have animportant role in providing the transport connections for the wireless base stations. The wireless solution can also 1. Wireless broadband access is therefore an attractiveoption, especially in new growth markets in urban areas as well as in rural areas in othermarkets. There are also other wireless technologies — including IEEE The driving forces for LTE development are summarized in Figure 1. The peak user throughput should be a minimum of Mbps inthe downlink and 50 Mbps in the uplink, which is ten times more than HSPA Release 6. Latency must also be reduced to improve performance for the end user.

Terminal powerconsumption must be minimized to enable more use of multimedia applications withoutrecharging the battery.

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The main performance targets are listed below and are shown inFigure 1. Those multiple-access solutions provide orthogonality between theusers, reducing interference and improving network capacity. Resource allocation in thefrequency domain takes place with the resolution of kHz resource blocks both inuplink and in downlink. The frequency dimension in the packet scheduling is one reasonfor the high LTE capacity.

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  • The transmission bandwidth can beselected between 1. The uplink peak data rate is 75 Mbps. The multiple accessschemes are illustrated in Figure 1. Allradio protocols, mobility management, header compression and packet retransmissions arelocated in the base stations called eNodeB. The corenetwork is streamlined by separating the user and the control planes. The architecture evolution is illustrated in Figure 1.

    Download Wcdma For Umts Hspa Evolution And Lte Fifth Edition 2010

    The market share development of 3GPP technologies is illus-trated in Figure 1. The number of subscribers using 3GPP-based tech-nologies is currently more than 4. For a better shopping experience, please upgrade now. Javascript is not enabled in your browser. Enabling JavaScript in your browser will allow you to experience all the features of our site. Learn how to enable JavaScript on your browser. It continues to provide updated descriptions of the 3GPP standard including the physical layer, radio protocols on layers and a system architecture description.

    There is also the addition of a new chapter on femto cells as part of the updates to this fifth edition. Key updates include:. Harri Holma and Antti Toskala both work on cutting edge technologies for mobile communications today. Read an Excerpt Click to read or download. See All Customer Reviews.

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