LTE干扰排查处理指导书.docx
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LTE 干扰分析排查指导书
目录
LTE 干扰分析排查指导书.........................................................................................................1
1 概述........................................................................................................................................3
2 干扰产生的原因及分类 ........................................................................................................4
2.1 干扰分为系统内干扰和系统间干扰 ............................................................................4
2.2 系统间干扰产生的原因及分类 .....................................................................................5
2.3 系统间干扰 PRB 图形分析 .............................................................................................7
2.3.1 阻塞干扰 ..................................................................................................................7
2.3.2 互调干扰 ..................................................................................................................9
2.3.3 杂散干扰 ................................................................................................................10
2.3.4 外部干扰 ................................................................................................................12
2.4 系统内干扰介绍及解决方案 .......................................................................................15
2.4.1GPS 或者时钟源跑偏..............................................................................................15
2.4.2 上下行时隙配比或者帧头不一致 ........................................................................16
2.4.3 解决方案 ................................................................................................................17
3 干扰分析排查思路 ..............................................................................................................17
3.1 集中网优平台+单站定位 .........................................................................................17
3.2 干扰排查的思路 .......................................................................................................17
3.3 前后台结合分析干扰源流程 ...................................................................................18
4 分场景干扰整治方案 ..........................................................................................................19
4.1 全频段干扰排查 ...........................................................................................................19
4.1.1 影响 ........................................................................................................................19
4.1.2 成因分析 ................................................................................................................19
4.1.3 解决方案 ..............................................................................................................20
解决方案 .........................................................................................................................20
方案介绍 .........................................................................................................................20
应用场景 .........................................................................................................................20
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