【正文】
n the test data acquisition, customer plaint information prehensive analysis, find work problems, propose solutions, work performance to reach the best level, improve the quality of work service. 3 Key word: CDMA2021 Network optimization 4 前言 CDMA 通信技術(shù)具有許多技術(shù)上地優(yōu)點(diǎn),抗多徑衰減、軟切換、軟容量、其系統(tǒng)容量比 GSM 系統(tǒng)大,則使用語音激活,分集接受和智能天線技術(shù)可以進(jìn)一步提高系統(tǒng)容量。 關(guān)鍵詞: CDMA2021 網(wǎng)絡(luò)優(yōu)化 2 畢業(yè)設(shè)計(jì) (論文 )外文摘要 Title : Common problems in CDMA2021 work optimization Abstract: CDMA munication technology has many technical excellence, anti multipath fading, soft switching, soft capacity, the system capacity than the GSM system large, use voice activation, diversity is accepted and smart antenna technology can further improve the system capacity. From the former China Uni began to continued investment and development construction CDMN until the work of China Tele, China Tele has built the world39。合理的無線網(wǎng)絡(luò)規(guī)劃可使網(wǎng)絡(luò)在時(shí)間與空間上達(dá)到最大程度的覆蓋;在滿足系統(tǒng)容量和服務(wù)質(zhì)量的情況下,盡量減少系統(tǒng)設(shè)備單元,降低成本。隨著網(wǎng)絡(luò)深入 建設(shè),運(yùn)營(yíng)商和設(shè)備供應(yīng)商關(guān)注的問題已經(jīng)網(wǎng)絡(luò)的規(guī)模建設(shè)轉(zhuǎn)移到網(wǎng)絡(luò)的性能優(yōu)化上,即如何進(jìn)一步提高運(yùn)營(yíng)的網(wǎng)絡(luò)性能,更好的為用戶服務(wù)。 南京信息職業(yè)技術(shù)學(xué)院 畢業(yè) 論文 作者 學(xué)號(hào) 系部 通信學(xué)院 專業(yè) 題目 CDMA2021 網(wǎng)絡(luò)優(yōu)化 指導(dǎo)教師 評(píng)閱教師 完成時(shí) 間: 年 月 日 年 月 日 1 目 錄 前言 ............................................................ 4 1 緒論 .......................................................... 5 CDMA2021 技術(shù)標(biāo)準(zhǔn) .......................................... 5 CDMA2021 在全球的應(yīng)用 ...................................... 5 現(xiàn)階段存在的問題 ........................................... 6 2 CDMA2021 網(wǎng)絡(luò)結(jié)構(gòu)及關(guān)鍵技術(shù) .................................. 7 CDMA2021 系統(tǒng)結(jié)構(gòu) .......................................... 7 CDMA2021 系統(tǒng)的優(yōu)勢(shì) ........................................ 7 關(guān)鍵技術(shù) ................................................... 8 功率控制 .................................................................................................................................8 分集技術(shù) .............................................................................................................................. 10 軟容量 .................................................................................................................................. 10 切換 ...................................................................................................................................... 10 3 路測(cè)的流程及現(xiàn)網(wǎng)情況 ........................................ 10 路測(cè)流程 .................................................. 11 路測(cè)主要參數(shù) .............................................. 11 4 CDMA2021 網(wǎng)絡(luò)存在的問題及優(yōu)化方案實(shí)例 ....................... 12 概述: ..................................................... 12 優(yōu)化前網(wǎng)絡(luò)總體情況 ......................................... 14 優(yōu)化前測(cè)試情況 .................................................................................................................... 14 問題區(qū)域及事件分析 ............................................................................................................