WCDMA高级培训

目 录

1 引言............................................................................................................................................................7 2 切换算法分析............................................................................................................................................7 2.1 切换测量...............................................................................................................................................7 2.1.1 同频测量........................................................................................................................................8 2.1.2 异频测量......................................................................................................................................12 2.1.3 异系统测量..................................................................................................................................14 2.1.4 UE内部测量.................................................................................................................................14 2.2 切换算法.............................................................................................................................................15 2.2.1 更软切换和软切换算法..............................................................................................................15 2.2.2 同频硬切换算法..........................................................................................................................16 2.2.3 异频硬切换算法..........................................................................................................................16 2.2.4 系统间切换算法..........................................................................................................................17 2.2.5 负载平衡引起的切换..................................................................................................................17 2.2.6 小区惩罚......................................................................................................................................18 2.2.7 激活集同步维护..........................................................................................................................19 2.2.8 直接重试算法..............................................................................................................................20 2.2.9 邻区列表的生成原则..................................................................................................................21 3 切换参数设置..........................................................................................................................................22 3.1 说明.....................................................................................................................................................22 3.2 切换公共参数.....................................................................................................................................23 3.2.1 激活集最大小区数......................................................................................................................23 3.2.2 惩罚时长......................................................................................................................................23 3.2.3 6F事件触发门限..........................................................................................................................24 3.2.4 6G事件触发门限.........................................................................................................................24 3.2.5 6F、6G事件的延迟触发时间.....................................................................................................25 3.2.6 BE业务切换速率判决门限.........................................................................................................25 3.2.7 软切换方法选择开关..................................................................................................................26 3.2.8 切换类算法开关..........................................................................................................................26 3.3 同频切换测量算法参数.....................................................................................................................28 3.3.1 软切换相对门限..........................................................................................................................28 3.3.2 软切换绝对门限..........................................................................................................................29 3.3.3 同频测量滤波系数FilterCoef......................................................................................................30 3.3.4 软切换相关的磁滞......................................................................................................................31 3.3.5 软切换相关的延迟触发时间......................................................................................................32 3.3.6 WEIGHT.......................................................................................................................................33 3.3.7 监测集统计开关..........................................................................................................................34 3.4 异频切换算法参数.............................................................................................................................34 3.4.1 异频测量滤波系数FilterCoef......................................................................................................34 3.4.2 小区位置属性..............................................................................................................................35 3.4.3 异频切换相关的磁滞..................................................................................................................36 3.4.4 异频硬切换相关的延迟触发时间...............................................................................................36 3.4.5 RSCP表示的压缩模式启停门限.................................................................................................37 3.4.6 Ec/No表示的压缩模式启停门限................................................................................................38 3.4.7 异频硬切换RSCP门限.................................................................................................................39 3.4.8 异频硬切换Ec/No门限................................................................................................................39 3.5 系统间切换测量算法参数.................................................................................................................40 3.5.1 异系统测量滤波系数FilterCoef..................................................................................................40