概述................................................................................................................................. 3 1 64QAM基本原理概述.................................................................................................. 4 1.1 HSPA+概况.................................................................................................... 4 1.2 64QAM基本原理........................................................................................... 4 1.3 64QAM高阶调制优势.................................................................................... 5 2 启用64QAM条件及64QAM无法占用CASE分析............................................................. 7 2.1 启用64QAM需满足条件................................................................................ 7 2.2 64QAM无法占用CASE分析.......................................................................... 7 2.2.1 CE资源不足........................................................................................... 7 2.2.2 基站异常导致64QAM无法占用.......................................................... 8 2.2.3 传输带宽受限导致64QAM占用时有时无............................................ 9 3 影响HSPA+ 64QAM调度比例的因素........................................................................... 10 3.1 CQI对HSPA+64QAM调度的影响................................................................ 10 3.1.1 现网CQI测试说明............................................................................ 10 3.1.2 CQI差异说明....................................................................................... 12 3.2 传输速率对64QAM调度影响.......................................................................... 14 3.3 Codes对64QAM调度影响.............................................................................. 15 3.4 16QAM 和 64QAM转换原则............................................................................ 15 4 总结 16
|