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[WCDMA] (2006 Wiley)WCDMA(UMTS) Deployment Handbook Planning and Optimization Aspects

(2006 Wiley)WCDMA(UMTS) Deployment Handbook Planning and Optimization Aspects

WCDMA(UMTS) Deployment Handbook Planning and Optimization Aspects

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 作者 Christophe Chevallier, Christopher Brunner, et al.
 ISBN 0-470-03326-6
 出版日期/版本 2006
 格式 PDF Adobe Acrobat

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In our day-to-day activities, as part of the Engineering Services Group of QUALCOMM, we consult with network operators throughout the world. In working with them, we have realized that operators repeatedly face the same four challenges: improving RF optimization, properly tuning system parameters, increasing the reliability of inter-system transitions, and providing better indoor coverage. These issues, among others, cannot be resolved simply by studying the communication standard; consequently, they have not been widely addressed in the literature. In this book, using the experience we have gained from performing many network assessments, we focus on the day-to-day tasks and real world choices that confront operators. We have chosen to minimize paraphrasing of the standard. This is not to say that we disregard the ample documentation written by the Third Generation Partnership Project (3GPP), also known as the standard. We do refer to the standard throughout this book but rather than present its concepts in a dry manner, we introduce only the sections that readers can use to deepen their knowledge on specific topics. We selected these topics to help network planners and optimization engineers make a better transition from GSM to WCDMA while understanding how to perform the required tasks. This volume attempts to provide as many answers as possible to the complex questions that planners or engineers encounter in their daily activities. As we were writing, we had to make difficult choices about what to include. Without these choices, of course, we would still be writing. Here are the basic questions that we tried to answer in each chapter: • Introduction to UMTS networks. What nodes are necessary in a WCDMA network? What are their basic functions? What is WCDMA anyway? What differentiates WCDMA from other technologies, such as GSM? What are the key terms and concepts of the technology? • RF planning and optimization. What is a typical Link Budget for the different services offered in WCDMA? Is the Downlink or the Uplink limiting? What are the main factors that determine the coverage? How can the coverage of a WCDMA network be qualified? • Capacity planning and optimization. What is the capacity of a WCDMA cell? How does soft handover affect the capacity of a WCDMA network? How do the different services affect the overall capacity? How can the capacity of the network be maximized? Will microcells affect the capacity of the network? • Initial parameter settings. What are the most important parameters to focus on? What is a good starting point for each parameter? How can you verify the values that are broadcast, and where? • Service optimization. How should the optimization process be started? What are the basic procedures that will affect all services? What should you look for to resolve typical failures? What differs from one service to another? Do any parameters apply only to particular services? • Inter-system planning and optimization. Why rely on other systems? When should you start looking at inter-system issues? What parameters are involved in inter-system changes? What are good starting points for their respective settings? • HSDPA. What is HSDPA? What advantages does it offer compared to a WCDMA (Release 99) network? How does it differ? How and where should HSDPA be deployed? What parameters are available in HSDPA? How do these parameters affect the coverage and capacity of the entire network? • Indoor coverage. Why is indoor coverage different? When should indoor coverage be provided? How can it be achieved and optimized? By the time you have read this book, you will no doubt be ready to ask several more questions. Hopefully, with the aid of this book, you will have the skills to find the answers you need. [ 本帖最后由 hanswoo 于 07-4-23 23:24 编辑 ]
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