华为：很重要GSM数字移动通信原理.doc

华为：很重要GSM数字移动通信原理 课程 MA000001 GSM数字移动通信原理 ISSUE 3.3 MA0000 GSM数字移动通信原理 Issue 3.3 目录 目录 课程说明 ....................................................................................................................................... 1 课程介绍 .......................................................................................................................................1 课程目标 .......................................................................................................................................1 相关资料 .......................................................................................................................................1 第1章 GSM发展简史 ................................................................................................................. 2 第2章 数字移动通信技术 ............................................................................................................ 3 2.1 多址技术 ................................................................................................................................3 2.1.1 频分多址 .....................................................................................................................3 2.1.2 时分多址 .....................................................................................................................4 2.1.3 码分多址 .....................................................................................................................4 2.2 功率控制 ................................................................................................................................5 2.3 蜂窝技术 ................................................................................................................................5 2.3.1 频率复用的概念 ..........................................................................................................5 2.3.2 频率复用方案 ..............................................................................................................6 2.3.3 频率复用距离 ....................