B3G时代LTE技术崭露头角  

Long term evolution makes a figure in B3G times

作　　者：魏垚[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《数字通信》2009年第1期13-15,37,共4页Digital Communications and Networks

摘　　要：介绍长期演进项目(LTE)的技术特征,对比传统的宽频通信技术,突出了LTE技术优势,对LTE核心技术OFDM(正交频分复用)、MIMO(多输入多输出)、HARQ(混合自动重传)、AMC(自适应编码调制)等进行了介绍,同时对上下行编码方案,接入网结构变化进行了解释,最后对WiMAX以及WiFi技术进行对比分析,着重分析了LTE的技术优势,说明LTE技术在B3G时代势不可当的发展趋势。The technical characteristics of the long term evolution （LTE） were introduced. Compared with traditional wide frequency communication technology, the technical advantages of LTE were emphasized. The key technologies of LTE, such as OFDM, MIMO, HARQ, and AMC, were introduced. In addition, the uplink and downlink coding schemes and the structure change of access network were explained. At last, WiMAX and WiFi were compared and the technical advantages of LTE were analyzed, which shows that LTE will make an irresistible development in B3G times.

关 键 词：长期演进项目 微波存取全球互通 无线保真技术 B3G时代 

分 类 号：TN929.5[电子电信—通信与信息系统]