4G LTE 物理层相关协议 TS36.2
上传时间： 2013-12-26
上传用户：Ants
该文档为基于4G LTE的应急通信网络讲解资料，讲解的还不错，感兴趣的可以下载看看…………………………
上传时间： 2021-11-02
上传用户：
AP4000MT模块是一款插针式4G网络模块，支持2*2贴片卡和外置SIM卡，实现UART 转LTE双向透传功能；支持LTE-FDD、LTE-TDD、WCDMA、GSM通信网络，真正实现广 覆盖，长距离，全国漫游，为用户提供实时、稳定、透明数据传输的通信网络。本产品所有 引脚引出，用户使用更加方便；只需通过简单的设置，即可实现串口到网络的双向数据透明 传输。
上传时间： 2022-06-06
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PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上传时间： 2022-07-08
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5GNR信道编码研究，信道编码是 5G 的关键技术之一，描述了 5G 新空口（NR——New Radio Access）的低密度奇偶校验码（LDPCC——Low Density Parity Check Codes）和 极化码（Polar Codes）的关键技术；通过仿真，比较了5G NR的信道编码方案与 4G LTE信道编码方案的性能。另外，还比较了这2代信道编码技术的复杂度和 吞吐量。
标签： 信道编码
上传时间： 2022-06-30
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WCDMA是數位通訊重要的調變方式之一,本書主要介紹WCDMA在UMTS/HSPA(2G/3G)和LTE(4G)的應用
上传时间： 2017-07-05
上传用户：kristycreasy
Basic Introduction to LTE, 4G Cellular Architecture
标签： Architecture Introduction Cellular Basic
上传时间： 2014-01-17
上传用户：维子哥哥
This is a latest book on Evolved UMTS. Its a 4G technology. Its also know as LTE.
标签： technology Its Evolved latest
上传时间： 2014-01-01
上传用户：thesk123
华为ME909s-821 LTE LGA模块硬件指南华为4G模块软件串口AT指令软硬件文档资料
上传时间： 2021-12-29
上传用户：fliang
该文档为4G网络覆盖优化典型案例汇编(LTE)讲解文档，是一份很不错的参考资料，具有较高参考价值，感兴趣的可以下载看看………………
标签： 4g
上传时间： 2022-03-03
上传用户：aben
