【資料名稱】：CDMA網(wǎng)絡(luò)海域覆蓋專題優(yōu)化指導(dǎo)書

【資料作者】：DX

【資料日期】：20101011

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

1 海域覆蓋的技術(shù)特點(diǎn).......................................................................................................... 1
1.1 概述.......................................................................................................................................................1
1.2 海面無線傳播模型...............................................................................................................................1
1.2.1 模型分段原則............................................................................................................................1
1.2.2 視距路徑...................................................................................................................................2
1.2.3 超視距路徑...............................................................................................................................3
1.3 海面覆蓋的特點(diǎn)...................................................................................................................................3
2 海域覆蓋站點(diǎn)建設(shè)與規(guī)劃建議.......................................................................................... 5
2.1 站址選擇...............................................................................................................................................5
2.2 主設(shè)備選擇...........................................................................................................................................5
2.3 天線選擇...............................................................................................................................................6
2.3.1 極化方式...................................................................................................................................6
2.3.2 天線輻射方向圖、水平波瓣寬度、垂直波瓣寬度和增益.....................................................6
2.3.3 天線下傾角...............................................................................................................................6
2.3.4 天線旁瓣抑制與零點(diǎn)填充特性.................................................................................................6
2.3.5 背向信號(hào)抑制............................................................................................................................6
2.4 饋線選擇...............................................................................................................................................7
2.5 PN 規(guī)劃建議..........................................................................................................................................8
3 海域覆蓋射頻優(yōu)化.............................................................................................................. 8
3.1 影響超遠(yuǎn)覆蓋的因素及優(yōu)化措施........................................................................................................8
3.1.1 站點(diǎn)規(guī)劃問題............................................................................................................................8
3.1.2 工程質(zhì)量問題............................................................................................................................8
3.1.3 優(yōu)化措施...................................................................................................................................8
3.2 超遠(yuǎn)站與其他基站的相互干擾問題及優(yōu)化措施................................................................................9
4 無線參數(shù)優(yōu)化..................................................................................................................... 9
4.1 中興設(shè)備參數(shù).....................................................................................................................................10
4.1.1 1X 語音業(yè)務(wù)參數(shù)設(shè)置..............................................................................................................10
4.1.2 DO 數(shù)據(jù)業(yè)務(wù)參數(shù)設(shè)置.............................................................................................................10
4.2 華為設(shè)備參數(shù)....................................................................................................................................11
4.2.1 1X 語音業(yè)務(wù)參數(shù)設(shè)置..............................................................................................................1