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
標簽：
4g
移動通信
上傳時間：
2022-07-08
上傳用戶：
VIP專區-嵌入式/單片機編程源碼精選合集系列（85）資源包含以下內容：1. 功能：浮點數開平方（快速逼近算法）
入口條件：操作數在[R0]中。
出口信息：OV=0時.2. 全套成熟無線遙控汽車防盜器資料.3. 萬年歷制作全套資料,19位LED數碼管顯示.4. 這是一個制作小車的電路原理圖,里面有許多一個關鍵的電氣參數.保證傳感器的正常工作..5. AVR的一些實驗例程.6. 一塊2410板的原理圖和PCB,PCB是PADS格式,僅工參考.7. the 232 control demo source for the NEC mcu.8. the timer control demo source for the NEC mcu.9. the csi control demo source for the NEC mcu.10. the iic control demo source for the NEC mcu.11. the UART control demo source for the NEC mcu.12. IIC,24C08控制 PTD電子音量 總線控制.13. cpld入門教材.
介紹基本vhdl語法.適合快速入門理解含有cpld器件的電路板..14. AD7843在ADS1.2環境下的一個驅動程序.15. 在ARM平臺上開發的LCD驅動程序,具有很強的通用性..16. 飛利浦lpc2200實驗箱關于spi接口的驅動代碼。代碼非常詳細有注釋。.17. 深圳優龍公司PXA270的cpld的vhdl邏輯代碼.18. Trimble的GPS模塊的原理圖和pcb。.19. 華為GTM900開發板資料.20. LPC2100專用工程模板,在ADS1.2下使用.21. 基于FPGA的嵌入式系統設計。相對FPGA的迅速發展及盛行.22. Latest ucFS v.3.10d PC Windows Evaluation Ed., provided with free Flash driver.23. Compact Flash Support For Nios II 5.0, To download supporting materials for this new Compact Flash s.24. DS18B20在KEIL uvision2.0下寫的源代碼!.25. 1302編程源碼.26. 嵌入式系統 PHILIP ARM7 LPC2200開發必備.27. 硬盤播放器制作DIY.28. 主要講解NIOSII從入門到精通的課件.29. TI 公司最新DSP TMS320F28335 SDFlash JTAG Flash Programming Utilities 驅動程序。.30. 基于S3C2410的xmodem協議實現.31. 上網隨便上,想上就上無所不能
上?姹閔?想上就上無所不能.32. arm s3c2410常用頭文件整理.33. cc2430相關資料.34. KEIL C上的門禁控制器源代碼.35. 2410 外部中斷原代碼 ADS開發環境.36. 2410 實驗1 ARM匯編指令實驗 ADS環境.37. 2410 實驗2 C和匯編語言的混合編程實驗
ADS環境.38. 2410 實驗4 看門狗應用實驗 ADS環境.39. 2410 實驗5 PWM timer實驗 ADS環境.40. 本文詳細分析了COOLRUNNER系列CPLD的結構,特點及功能,使用VHDL語言實現數字邏輯,實現了水下沖擊波記錄儀電路的數字電路部分..
標簽：
金屬材料
上傳時間：
2013-04-15
上傳用戶：eeworm
