1、无线通信技术热点及其发展趋势 I 无线通信技术热点及其发展趋势无线通信技术热点及其发展趋势 摘要 我国的无线通信产业通过短短几十年的发展， 已经发展到第三代和第四代移动 通信技术，多种无线通信技术都得到了广泛的应用。目前，无线通信领域主要包括 3G、TD-LTE-Advanced、UWB、Wi-Fi、RFID 等几大技术热点。本文首先介绍了 无线通信技术的发展历程和特点，然后主要针对我国具有自主知识产权的 TD-LTE-Advanced 技术的产生及其特点进行了简要的分析。 TD-LTE-Advanced 作为 TD-SCDMA 技术的演进，是下一代移动通信系统 IMT-Advanced 的两
2、大技术之一。与第三代移动通信系统采用 CDMA 技术不同， TD-LTE 采用 OFDM 和 MIMO 作为基本技术，大量采用了目前移动通信领域最先 进的技术和设计理念。 关键词：无线通信，3G，LTE，TD-LTE-Advanced 无线通信技术热点及其发展趋势 II Hot Spots in Wireless Communication Technology and its Tendency of Development Abstract By only a few decades of development,the wireless industry in China has grow
3、n to the third and the fourth generation mobile communication technology and a variety of wireless communication technology have been widely used. At present, the hot spots in wireless communication technology is mainly include 3G, TD-LTE-Advanced, UWB, Wi-Fi, RFID,etc.This paper first introduces th
4、e development history of wireless communication technology and its characteristics,then it briefly analyse the development process and features of TD-LTE-Advanced,and our country has independent intellectual property rights for this technology. As the evolution of TD-SCDMA Technology, TD-LTE-Advance
5、d is one of the two candidates for next generation mobile communication system (IMT-Advanced). Compared with CDMA technology which is widely adopted by 3G system, TD-LTE introduces OFDM and MIMO as technical basis,together with many state of art advanced technologies and designs. Key Words: Wireless
6、 Communication, 3G, LTE,TD-LTE-Advanced 无线通信技术热点及其发展趋势 III 目录 摘要 I Abstract II 目录 III 第一章 绪论 . 1 1.1 引言 1 1.2 技术背景概述 1 第二章 无线通信技术的发展 . 3 2.1 无线通信的概念 3 2.2 无线移动通信技术的发展历程 3 2.3 无线通信技术与业务的发展趋势 4 2.4 各个技术热点的简单介绍 6 2.4.1 3G .6 2.4.2 UWB .8 2.4.3 RFID8 2.3.4 Wi-Fi .9 2.4.5 TD-LTE-Advanced 10 第三章 TD-LTE-Advanced 的产生历程及特点 11 3.1 TD-LTE-Advanced 的概念 11 3.2 TD-LTE-Advanced 的产生过程 11 3.3 TD-LTE-Advanced 的技术特点 . 13 3.3.1 多址方式. 13 3.3.2 帧结构 14 3.3.3 多入多出 MIMO 方案 16 3.3.4 快速的分组调度 18 3.3.5 无线中继技术Relay 18 3.3
