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LTE

LTE（LongTermEvolution，長期演進)是由3GPP（The3rdGenerationPartnershipProject，第三代合作伙伴計劃）組織制定的UMTS（UniversalMobileTelecommunicationsSystem，通用移動通信系統）技術標準的長期演進，于2004年12月在3GPP多倫多會議上正式立項并啟動。LTE系統引入了OFDM（OrthogonalFrequencyDivisionMultiplexing，正交頻分復用）和MIMO（Multi-Input&Multi-Output，多輸入多輸出）等關鍵技術，顯著增加了頻譜效率和數據傳輸速率（20M帶寬2X2MIMO在64QAM情況下，理論下行最大傳輸速率為201Mbps，除去信令開銷后大概為150Mbps，但根據實際組網以及終端能力限制，一般認為下行峰值速率為100Mbps，上行為50Mbps），并支持多種帶寬分配：1.4MHz，3MHz，5MHz，10MHz，15MHz和20MHz等，且支持全球主流2G/3G頻段和一些新增頻段，因而頻譜分配更加靈活，系統容量和覆蓋也顯著提升。[1]

  • Future+Mobile+Communications+LTE

    Providing QoS while optimizing the LTE network in a cost efficient manner is very challenging. Thus, radio scheduling is one of the most important functions in mobile broadband networks. The design of a mobile network radio scheduler holds several objectives that need to be satisfied, for example: the scheduler needs to maximize the radio performance by efficiently distributing the limited radio re- sources, since the operator’s revenue depends on it.

    標簽： Communications Future Mobile LTE

    上傳時間： 2020-05-27

    上傳用戶：shancjb

  • GSM+to+LTE-Advanced

    Wireless technologies like GSM, UMTS, LTE, Wireless LAN and Bluetooth have revolu- tionized the way we communicate and exchange data by making services like telephony and Internet access available anytime and from almost anywhere. Today, a great variety of techni- cal publications offer background information about these technologies but they all fall short in one way or another. Books covering these technologies usually describe only one of the systems in detail and are generally too complex as a first introduction. The Internet is also a good source, but the articles one finds are usually too short and superficial or only deal with a specific mechanism of one of the systems. For this reason, it was difficult for me to recom- mend a single publication to students in my telecommunication classes, which I have been teaching in addition to my work in the wireless telecommunication industry. This book aims to change this.

    標簽： GSM LTE-Advanced

    上傳時間： 2020-05-27

    上傳用戶：shancjb

  • LTE+&+LTE+Advanced+4G

    The aim of this book is to give an integrated presentation of the specifications for Long Term Evolution (LTE) and LTE Advanced radio interfaces, so that the reader can gain an overview of their main characteristics.

    標簽： LTE Advanced 4G

    上傳時間： 2020-05-27

    上傳用戶：shancjb

  • LTE+and+its+Performance

    This books attempts to provide an extensive overview on Long-Term Evolution (LTE) networks. Understanding LTE and its Performance is purposely written to appeal to a broad audience and to be of value to anyone who is interested in 3GPP LTE or wireless broadband networks more generally. The aim of this book is to offer comprehensive coverage of current state-of-the-art theoretical and techno- logical aspects of broadband mobile and wireless networks focusing on LTE. The presentation starts from basic principles and proceeds smoothly to most advanced topics. Provided schemes are developed and oriented in the context of very actual closed standards, the 3 GPPP LTE.

    標簽： Performance LTE and its

    上傳時間： 2020-05-27

    上傳用戶：shancjb

  • LTE-Advanced+Relay+Technology

    LTE-Advanced becomes a truly global standard for 4G cellular communications. Relay, as one of the key technologies of LTE-Advanced, can significantly extend the coverage, and improve the system throughput. LTE-A standards and tech- nologies were described in several recent books where the limited pages for relay feature prevent the detailed explanations of the technology. In this book, we tried to provide an in-depth description of LTE-A relay development. More specifically, significant portions are spent on relay channel modeling and potential technologies during the study item phase of the development, although some of those tech- nologies, such as Type 2 cooperative relay, multi-hop relay, relay with backhaul of carrier aggregation, were not standardized in Release 10 LTE.

    標簽： LTE-Advanced Technology Relay

    上傳時間： 2020-05-27

    上傳用戶：shancjb

  • The+LTE-SAE+Deployment+Handbook

    Long-TermEvolution(LTE)isarguablyoneofthemostimportantstepsinthecurrentphaseof the development of modern mobile communications. It provides a suitable base for enhanced services due to increased data throughput and lower latency figures, and also gives extra impetus to the modernization of telecom architectures. The decision to leave the circuit- switched domainoutofthescope ofLTE/SAEsystem standardization might soundradical but itindicatesthatthetelecomworldisgoingstronglyfortheall-IPconcept----andthedeployment of LTE/SAE is concrete evidence of this global trend.

    標簽： Deployment Handbook LTE-SAE The

    上傳時間： 2020-06-01

    上傳用戶：shancjb

  • Vienna LTE-Advanced Simulators

    In this first part of the book the Vienna Link Level (LL) Simulators are described. The first chapter provides basics of LL simulations, introduces the most common variables and parameters as well as the transceiver structures that are applied in Long-Term Evolution (LTE) and Long-Term Evolution-Advanced (LTEA). We focus here mostly on the Downlink (DL) of LTE as most results reported in later chapters are related to DL transmissions.

    標簽： LTE-Advanced Simulators Vienna

    上傳時間： 2020-06-01

    上傳用戶：shancjb

  • LTE 協議 matlab 解碼

    全面詳解LTE：MATLAB建模、仿真與實現 的隨書代碼

    標簽： matlab LTE 協議 解碼

    上傳時間： 2021-08-13

    上傳用戶：yakgg

  • 基于4G LTE的應急通信網絡

    該文檔為基于4G LTE的應急通信網絡講解資料，講解的還不錯，感興趣的可以下載看看…………………………

    標簽： 4g LTE 應急通信網絡

    上傳時間： 2021-11-02

    上傳用戶：

  • LTE地掉話原因分析報告及處理思路(加精 值得收藏)

    該文檔為LTE地掉話原因分析報告及處理思路(加精,值得收藏)簡介文檔，是一份很不錯的參考資料，具有較高參考價值，感興趣的可以下載看看………………

    標簽： LTE

    上傳時間： 2021-11-13

    上傳用戶：

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