4g LTE 物理層相關協議 TS36.2
上傳時間： 2013-12-26
上傳用戶：Ants
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…………………………
上傳時間： 2021-11-02
上傳用戶：
AP4000MT模塊是一款插針式4G網絡模塊，支持2*2貼片卡和外置SIM卡，實現UART 轉LTE雙向透傳功能；支持LTE-FDD、LTE-TDD、WCDMA、GSM通信網絡，真正實現廣 覆蓋，長距離，全國漫游，為用戶提供實時、穩定、透明數據傳輸的通信網絡。本產品所有 引腳引出，用戶使用更加方便；只需通過簡單的設置，即可實現串口到網絡的雙向數據透明 傳輸。
上傳時間： 2022-06-06
上傳用戶：
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
上傳時間： 2022-07-08
上傳用戶：
5GNR信道編碼研究，信道編碼是 5G 的關鍵技術之一，描述了 5G 新空口（NR——New Radio Access）的低密度奇偶校驗碼（LDPCC——Low Density Parity Check Codes）和 極化碼（Polar Codes）的關鍵技術；通過仿真，比較了5G NR的信道編碼方案與 4g LTE信道編碼方案的性能。另外，還比較了這2代信道編碼技術的復雜度和 吞吐量。
標簽： 信道編碼
上傳時間： 2022-06-30
上傳用戶：
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
上傳時間： 2017-07-05
上傳用戶：kristycreasy
Basic Introduction to LTE, 4G Cellular Architecture
標簽： Architecture Introduction Cellular Basic
上傳時間： 2014-01-17
上傳用戶：維子哥哥
This is a latest book on Evolved UMTS. Its a 4G technology. Its also know as LTE.
標簽： technology Its Evolved latest
上傳時間： 2014-01-01
上傳用戶：thesk123
華為ME909s-821 LTE LGA模塊硬件指南華為4G模塊軟件串口AT指令軟硬件文檔資料
上傳時間： 2021-12-29
上傳用戶：fliang
該文檔為4G網絡覆蓋優化典型案例匯編(LTE)講解文檔，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： 4g
上傳時間： 2022-03-03
上傳用戶：aben
