Описание: The topic of this book is Coverage Solutions for Cellular Networks in buildings. It provides an overview and background of Cellular systems technology. It covers why Indoor Coverage is needed for GSM, CDMA and UMTS networks and how this coverage is achieved, from basic passive systems all the way through to advanced fiber optic systems. Each method is discussed in detail giving the reader a good understanding of all the available solutions. There is a section to cover multi operator systems, as this is becoming a more and more utilized approach. Techniques like Repeaters, BDA, Passive Antennas Systems, Fiber Optic Systems are explained in detail and there is a dedicated section on how to design an In-building solution for any technology, GSM, UMTS, PMR and TETRA. It gives details on everything required to design a working in-building solution, as well as how to install it. Other sections cover noise, link budgets and software tools that can be used to provide help with in-building designs.
Описание: Written by leading experts in the field, the first edition of Radio Network Planning and Optimisation for UMTS quickly established itself as a best-selling and highly respected book on all relevant planning issues for UMTS/WCDMA. The second edition will no doubt ensure this continued success.
Описание: The universalmobiletelecommunications system (UMTS) is a technical standard for a third generation (3G) telecommunication system. UMTS provides data rates more than three 1 times higher than its second generation (2G) predecessors. The increased speed en- ables, for example, video calls, music downloads, or fast web surfing. The technology is already widely available. In 2007, a total of 166 commercial UMTS radio networks are operational in 66 countries covering all continents (UMTS Forum, 207), and there are already more than 100 million UMTS subscribers (3GToday. com, 2007; UMTS Forum, 2006). The market for mobile telecommunication is, however, increasingly competi- tive, therefore operators need to invest effectively. In Western Europe, mobile phone penetration has reached 100 % in 2006 and the average revenue per customer is de- clining (3G. co. uk, 2007). Besides spectrum license fees, the main cost driver is network infrastructure (Ellingeret al., 2002). Radio network planning can cut operational and capital expenditure by up to 30 % (Dehghan, 2005). Good radio network planning is difficult for UMTS, because its radio interface is more complex than anything used at mass-market level before (Dehghan, 2005). Con- nections are separated via codes; they share the same frequency band and are thus subject to interference. On each link, the system constantly regulates the amount of generated interference to a minimum via a power-control feedback loop.
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