目錄
第 1 章 導頻導頻污染判斷..........................................................................1
第 2 章 導頻污染產生原因及影響分析...........................................................3
2.1產生原因分析....................................................................................3
2.1.1基站位置因素影響...........................................................................3
2.1.2天線掛高因素..................................................................................4
2.1.3天線方位角、下傾角因素...................................................................5
2.1.4覆蓋區(qū)域周邊環(huán)境影響......................................................................5
2.2影響分析...........................................................................................6
第 3 章 優(yōu)化方法分析.................................................................................7
3.1規(guī)劃階段導頻污染問題優(yōu)化...................................................................7
3.2現(xiàn)網導頻污染問題優(yōu)化.........................................................................7
3.2.1天線調整.........................................................................................7
3.2.2無線參數(shù)調整...................................................................................8
3.2.3采用 RRU.........................................................................................8
3.2.4鄰小區(qū)頻點等參數(shù)優(yōu)化........................................................................8
3.3優(yōu)化方法總結......................................................................................8
第 4 章 優(yōu)化流程、優(yōu)化案例.........................................................................9
4.1優(yōu)化流程............................................................................................9
4.1.1準備工作..........................................................................................9
4.1.2路測數(shù)據(jù)采集...................................................................................10
4.1.3采集數(shù)據(jù)分析...................................................................................10
4.1.4導頻污染優(yōu)化...................................................................................10
4.2案例分析............................................................................................10
4.2.1天線方位角和下傾角的影響.................................................................10
4.2.2越區(qū)覆蓋的影響.................................................................................12