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  • 4G移动通信技术权威指南:LTE与LTE-Advanced.4G LTE.LTE

    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

    标签: 4g 移动通信

    上传时间: 2022-07-08

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  • VIP专区-嵌入式/单片机编程源码精选合集系列(30)

    VIP专区-嵌入式/单片机编程源码精选合集系列(30)资源包含以下内容:1. 用Keilc编写的读取计算机pc键盘码的程序.2. itu.656数字分量视频信号的接口--中文版.3. 嵌入式系统的开发论文.4. 这是有关cpu和存储器挂接的一个硬件课程设计.5. HM701NEP(S3C44B0X)基本启动代码,在此基础上可以做各种实验,包括个6文件,44BINIT.S 汇编代码.6. 现场总线是用于过程控制现场仪表与控制室之间的一个标准的、开放的、双向的多站数字通信系统。随着计算机技术、通讯技术、集成电路技术的发展.7. S3C44B0X内部共有6个16位的定时器单元这个实验把所有的定时器都用中断方式测试。.8. 程序用于演示LCD的驱动和编程方法其中包括初始化设置、坐标位置、色彩选定、作图方法等。.9. 代码说明了一个ps2口驱动和编程方法。主要是鼠标,当鼠标产生中断时.10. 一个ps2口驱动和编程方法。主要是键盘,当键盘产生中断时.11. 一本详细讲解运算放大器应用的书。是硬件电路得不错的指导。.12. 可以完成12点阵、16点阵汉字的汉字文本向字库文本的转换工作(非源码)。.13. 详细介绍了cpld技术的基础知识及其应用开发原理。.14. 在sharp 404开发板的串口测试代码.15. 嵌入式系统MP3解码的c语言算法.16. 本书主要介绍了嵌入式开发的基本概念、ToMu6)n开发环境的使用和vxwort5操作 系统程序设计核心技术等内容。作者为国内vxw皿比首批用户.17. 本书通过介绍嵌入式领域的相关知识.18. 超级字符/图形点阵模提取软件.19. C51使用技巧及实战.20. 嵌入式系统及系统级可编程产品.21. DS1302时钟芯片驱动程序.22. 采用gpio口来控制串口扩展芯片的驱动和测试程序.23. 嵌入式系统的USB驱动(S3C2410).24. 一个基于pci2000数据采集卡的数据采集系统的源代码.25. 本程序为直线插补程序.26. 为数控机床的圆弧插补程序.27. 直接解压即可.28. 此代码主要完成在vxworks 环境下的网络编程.29. 主要完成在uc-os2操作系统对dsp的资源控制和调度.30. 本程序主要完成在dsp环境下对通过自己的程序可以把程序烧写到中flash.31. 本程序完成在dsp 的平台下.32. LM24064的开发程序,只显示一张图片.33. keil armdk 的详细说明 主要针对周立公仿真器.34. 本文为应用于嵌入式电子线路硬件pcb布线方面的书籍.35. isp1161驱动代码是我下载并该动后而成,还有点缺点,但对你可能有点帮助.36. jfs 源码.37. jfs-2.4-1.1.7.tar.gz jfs 2.4-1.1.7 源码.38. jfs-2.4-1.1.6-to-1.1.7.patch.gz jfs 源码的补丁源码.39. 这是一个提供给使用遥控器的嵌入式设备开发的一个中文拼音输入法.40. 这些都是常用的通信设备的电路原理图.

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    上传时间: 2013-04-15

    上传用户:eeworm