目录
优化切换性能提升用户感知 ..........................................................................................................3
1. 指标定义 ..................................................................................................................................3
2. 切换测量及参数介绍 ..............................................................................................................3
2.1. 测量事件 ..................................................................................................................3
2.2. 切换参数 ..................................................................................................................4
2.3. 测量 GAP ...................................................................................................................5
3. 信令流程 ..................................................................................................................................5
3.1. 站内切换流程 ..........................................................................................................5
3.2. 站间基于 X2 接口的切换.........................................................................................7
3.3. 站间 S1 接口的切换（MME 内）..............................................................................8
3.4. 站间 S1 接口的切换（MME 间）..............................................................................9
4. 切换问题分类 ..........................................................................................................................9
4.1. 过早切换 ..................................................................................................................9
4.2. 过晚切换 ................................................................................................................10
4.3. 乒乓切换或频繁切换.............................................................................................10
4.4. 网管切换话统原因.................................................................................................10
5. 分析流程及优化方法 ............................................................................................................11
5.1. 分析流程 ................................................................................................................11
5.2. 规定排查动作 ........................................................................................................12
5.3. 优化方法 ................................................................................................................14
6. 现网分析优化 ........................................................................................................................14
6.1. 基础参数核查 ........................................................................................................14
6.2. 冗余邻区删除 ........................................................................................................15
6.3. 切换异常优化 ........................................................................................................15
7. 优化效果 ................................................................................................................................16
8. 总结 ........................................................................................................................................17
