9787111252115 - 演进分组系统：3g umts的长期演进和系统结构演进 （法）皮埃尔（lescuyer,p）,（法）蒂 (1 risultati)
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Da: liu xing, Nanjing, JS, Cinaliu xing
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 65,79
EUR 15,58 spedizioneSpedito da Cina a U.S.A.Quantità: 10 disponibili
paperback. Condizione: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Publisher : Mechanical Industry Pub. Date :2008-12-01. 2G GSM and 3G UMTS mobile communications technology is important. the current GSM and UMTS in the world has more than 200 million us…ers. In order to meet the service bandwidth. service quality and network coverage. and many other needs. 3G standards has launched a new evolution of technology. Evolved Packet System (Evolved Packet System. EPS) is a 3GPP Standards Committee developed the latest evolution of the 3G UMTS standard. including long-term evolution of wireless interfaces (Long Term Evolution. LTE) and System Architecture Evolution (System Architecture Evolution. SAE). This book systematically studied the evolution of UMTS - EPS. according to from the wireless interface - the core network - the order of business structure gradually describes the various components of EPS. and key technologies. In each section. given the EPS and the 2G GSM and 3G UMTS inheritance. and focuses on the different EPS with existing systems and the improvements made. Book describes and summarizes the 3GPP standards body s hundreds of documents. in addition to a number of technical standards for the proposed new point of view. so that readers can comprehensive and thorough understanding of EPS. This book by the French Alcatel-Lucent two different fields (ie radio interface and network architecture) and written by experts. the book contains many illustrations and examples. so readers can better understand the book s contents. Book both for wireless communications researchers and engineers. but also as institutions of higher education teachers. graduate students and senior undergraduate textbooks or reference books. Contents: Preface Chapter 1 translator sequence Wireless World History 1.1 Introduction 1.2 2G system. various technologies 1.2.1 1.2.2 MAP and IS-41 system 1.2.3 MAP technology 1.2.4 IS-41 technology standards and organization 1.3 1.3.1 ITU s role 1.3.2 3G 1.3.3 3GPP standards organization multinational organizational structure 1.3.4 NGN evolution 1.3.5 NGMN Spectrum 1.5 UMTS proposal 1.4 The first step in the evolution of evolution 1.5.1: data-oriented applications. improved 1.5. The second step in the evolution of 2: Enhanced capacity 1.5.3 radio interface within the network has changed? 1.5.4 What the book describes? 1.6 Web site and documents useful to 1.6.2 evolution 1.6.1 UMTS specifications outlined in Chapter 2 Evolution 2.1 IMTS demand for access network throughput wireless interface 2.1.1 2.1.2 2.1.3 data transmission delay of the terminal state Conversion 2.Four Satisfaction guaranteed,or money back.
