本文選題：TD-LTE + MIMO技術　； 參考：《武漢郵電科學研究院》2014年碩士論文

【摘要】：隨著移動通信技術的發(fā)展，移動通信的重點從語音業(yè)務模式逐步轉向數據業(yè)務傳輸。而隨著LTE時代的即將到來，移動通信速率將得到極大的提升，視頻、游戲、流媒體等高速率的分組交換業(yè)務將成為人們日常使用手機的主要業(yè)務。 有數據顯示，移動通信網絡的業(yè)務量有70%發(fā)生在室內，特別是對傳輸速率和穩(wěn)定性要求較高的分組數據業(yè)務。所以在引入TD-LTE網絡后，室內分布系統(tǒng)建設是運營商的工作重點。為了保護運營商的前期投資，TD-LTE網絡的室內分布建設要盡量使用現有室內分布系統(tǒng)進行改造。 TD-LTE系統(tǒng)使用的一個重要技術是多天線技術，即MIMO技術。而現有的室分系統(tǒng)為單饋線系統(tǒng)，無法實現TD-LTE系統(tǒng)的MIMO特性，對TD-LTE系統(tǒng)的容量和傳輸速率都有很大影響。若要在現有室分系統(tǒng)上改造實現TD-LTE系統(tǒng)的MIMO特性，最常規(guī)的方法是新建一路饋線系統(tǒng)，實現TD-LTE系統(tǒng)的雙路覆蓋。這種方案的缺點是改造成本較高、施工周期較長和物業(yè)協調的難度較大。 本文提出了一種通過有源天線對現有的單饋線室內分布系統(tǒng)改造的方法，并詳細介紹了有源天線的功能和設計方法。單纜MIMO有源天線分布系統(tǒng)是在單根饋纜上通過變頻方式實現TD-LTE系統(tǒng)MIMO功能的全新室內分布系統(tǒng)，傳輸TD-LTE信號同時還兼容其他制式信號的透傳。通過在現有的單路室內分布系統(tǒng)的基礎上加裝有源天線的近遠端，使單路室內分布系統(tǒng)可以在引入TD-LTE網絡后實現其MIMO特性。這種方式的改造周期短，改造難度較小，，成本較低，物業(yè)協調的難度較小。
[Abstract]:With the development of mobile communication technology, the emphasis of mobile communication is gradually shifting from voice service mode to data service transmission. With the coming of LTE era, mobile communication rate will be greatly improved, video, game, streaming media and other high-speed packet switching services will become the main business of people using mobile phones. Some data show that 70% of the traffic in mobile communication network occurs indoors, especially packet data services which require high transmission rate and stability. So after the introduction of TD-LTE network, the construction of indoor distribution system is the focus of operators. In order to protect the upfront investment of operators in the indoor distribution construction of TD-LTE networks, the existing indoor distribution systems should be reformed as far as possible. One of the most important technologies used in TD-LTE systems is multi-antenna technology, that is, MIMO technology. However, the existing system is a single-fed system, which can not realize the MIMO characteristics of TD-LTE system, which has great influence on the capacity and transmission rate of TD-LTE system. In order to improve the MIMO performance of TD-LTE system on the existing system, the most common method is to create a new one way feeder system to realize the dual coverage of TD-LTE system. The disadvantage of this scheme is that the cost of reconstruction is high, the construction period is longer and the coordination of property is difficult. In this paper, a method of transforming the existing single-fed indoor distribution system through active antenna is proposed, and the function and design method of active antenna are introduced in detail. Single cable MIMO active antenna distribution system is a new indoor distribution system which can realize MIMO function of TD-LTE system by frequency conversion on a single feed cable. The transmission of TD-LTE signal is compatible with the transmission of other standard signals at the same time. Based on the existing single-channel indoor distribution system, the MIMO characteristics of the single-channel indoor distribution system can be realized with the introduction of TD-LTE network by adding the near and far end of the active antenna. This type of transformation cycle is short, transformation difficulty is small, cost is lower, the difficulty of property coordination is small.
【學位授予單位】：武漢郵電科學研究院
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN828.6

【參考文獻】

相關期刊論文 前10條

1 施云濤;王瑋;蔡偉明;;基于有源天線的TD-LTE室分改造策略[J];電信工程技術與標準化;2012年07期

2 梁晉仲;;TD-LTE室內多天線模式探討[J];電信技術;2010年12期

3 郎為民;朱元誠;焦巧;王逢東;;LTE中的MIMO技術研究[J];電信快報;2010年06期

4 劉光毅;張勇;姜大潔;王啟星;;智能天線及其在TD-LTE中的應用[J];電信科學;2009年12期

5 陳國平;;MIMO檢測技術在LTE系統(tǒng)中的應用研究[J];電子產品世界;2012年03期

6 汪穎;程日濤;張海濤;;TD-LTE室內分布系統(tǒng)規(guī)劃設計思路和方法解析[J];電信工程技術與標準化;2010年11期

7 田桂賓;王懿華;楊輝;;TD-LTE室內分布系統(tǒng)雙通道改造替代方案的研究[J];電信工程技術與標準化;2012年03期

8 邱揚;;MIMO技術及在3G中的應用[J];信息通信技術;2010年01期

9 孫鏡華;;TD-LTE與其他系統(tǒng)室內分布干擾分析探討[J];數字技術與應用;2011年07期

10 劉曉峰;沈嘉;;LTE中MIMO技術面臨的挑戰(zhàn)及其測試[J];現代電信科技;2009年09期

本文編號：2078983