【正文】 glish abbreviation of WCDMA es from Wideband Code Division Multiple Access, it’s a thirdgeneration wireless munication technology. This third generation mobile munication system is developed by the 3GPP and it is based on GSM MAP core work. The system provides highquality images and video, it enhances the interpersonal munication capabilities . The third generation systems brought about newer and more flexible munication capability and higher data rates, it enhances the access capacity of radio work greatly. WCDMA Network Optimization is to meet the system requirements of various wireless works index by adjusting the various relevant design parameters of wireless work engineering and radio resource parameters. Its optimized core is to follow the basic principles of WCDMA, control the cover and reduce the radio frequency interference. These wireless interference signal may bring drop call, poor call quality and channel congestion near the wireless base station. It is different from the optimization of the traditional 2G works because of its multiservice features and characteristics of HSDPA wireless broadband. The new focal point is to make a best overall balance of air interface and upperlayer protocols on the basis of RF optimization. As a selfinterference system, each user pairs interferes other users, the core work optimization is to minimize the interference of the systemlevel. Therefore, it is important to analysis power configuration and handoff parameters. In order to improve the quality and stability of work operation, we should observe the work running status from time to time with the dynamic changes of business development. We can according different situations to deal with the problems and adjust the parameters by taking into account other indicators. The ultimate goal is to make the work keep a dynamic equilibrium. 【 Key Words】 WCDMA work optimization core work handoverparameter interference 目 錄 緒 論 ....................................................................... 1 1 WCDMA 無線網(wǎng)絡(luò)優(yōu)化概述 .................................................... 2 本文研究的背景和意義 .................................................. 2 目前國內(nèi)外的研究現(xiàn)狀 .................................................. 2 本文主要研究內(nèi)容 ...................................................... 3 論文的篇章結(jié)構(gòu) ........................................................ 3 2 WCDMA 系統(tǒng)結(jié)構(gòu) ............................................................ 4 WCDMA 系統(tǒng)框架結(jié)構(gòu) .................................................... 4 核心網(wǎng) ............................................................ 4 陸地無線接入網(wǎng) .................................................... 5 用戶終端設(shè)備 ...................................................... 5 外部網(wǎng)絡(luò) .......................................................... 6 WCDMA 關(guān)鍵技術(shù) ........................................................ 6 RAKE 接收機 ....................................................... 6 WCDMA 射頻和中頻的總體結(jié)構(gòu) ........................................ 7 分集接收原理 ...................................................... 8 3 WCDMA 無線網(wǎng)絡(luò)優(yōu)化 ........................................................ 9 WCDMA 網(wǎng)絡(luò)規(guī)劃難點 .................................................... 9 網(wǎng)絡(luò)優(yōu)化的解決方案 .................................................... 9 基站系統(tǒng) .......................................................... 9 直放站系統(tǒng) ....................................................... 10 基站增強器 ....................................................... 11 掉話問題分析 ......................................................... 12 路測掉話定義 ..................................................... 12 掉話分析流程之鄰區(qū)漏配 ........................................... 13 掉話分析流程之弱覆蓋 ............................................. 13 掉話分析流程之切換導(dǎo)致掉話 ....................................... 14 掉話分析流程之干擾導(dǎo)致掉話 ....................................... 15 異常分析 ......................................................... 15 掉話數(shù)據(jù)分析流程 ................................................. 16 WCDMA 無線資源管理 ................................................... 17 無線資源管理概述 ................................................. 17 信道控制 ......................................................... 18 功率控制 ......................................................... 20 連接移動性管理 ................................................... 20 負載控制 ......................................................... 21 ARM 模式控制 ..................................................... 21 4 WCDMA 無線網(wǎng)絡(luò)優(yōu)化案例 ................................................... 23 鄰區(qū)漏配 ............................................................. 23 鄰區(qū)漏配現(xiàn)象和分析 ............................................... 23 鄰區(qū)漏配解決方法 ................................................. 24 弱覆蓋問題 ........................................................... 24 弱覆數(shù)據(jù)分析 ..................................................... 24 弱覆蓋現(xiàn)象和分析 ................................................. 25 弱覆蓋解決方案 ................................................... 26 調(diào)整結(jié)果 ......................................................... 27 弱覆蓋問題解決通用方法 ........................................... 28 干擾問題 ............................................................. 28 拐角效應(yīng)現(xiàn)象和分析 ............................................... 28 拐角效應(yīng)解決方法 ................................................. 29 結(jié) 論 ...................................................................... 31 參考文獻 ................................................................... 32 致 謝 ....................................................... 錯誤 !未定義書簽。因此進行干擾分析、功率配置和切換參數(shù)優(yōu)化等工作尤為重要。 在射頻（ RF）優(yōu)化的基礎(chǔ)上實現(xiàn)空中接口和上層協(xié)議的最佳綜合平衡成為另一個新的聚焦點。 WCDMA 無線網(wǎng)絡(luò)優(yōu)化主要是通過調(diào)整各種相關(guān)的無線網(wǎng)絡(luò)工程設(shè)計參數(shù)和無線資源參數(shù)，滿足系統(tǒng)現(xiàn)階 段對各種無線網(wǎng)絡(luò)指標的要求。 通過該系統(tǒng)提供的高質(zhì)量圖像和視頻，使人與人之間的通信能力進一步增強 。 WCDMA 無線網(wǎng)絡(luò)優(yōu)化 【 摘 要 】 WCDMA 是英文 Wideband Code Division Mu