【正文】 d content constantly changes, mainly in the following areas. Network optimization focus from voice to data services and voice services both transfer. In recent years, the development of mobile data services can be said with each passing day. More mature business model and continue to be excavated user needs has bee a mobile operator39。s new business growth, the data in order to attract more users, To provide a stable wireless Inter environment, build quality has bee a mobile data work operators focus on the further development of Therefore, the work on work optimization and higher demands, not only to provide users with a good voice coverage, and to provide highspeed data transmission environment. Optimization of data services and voice work optimization is different optimization goal is to use voice service and reasonable way of frequency reuse and improve system efficiency, to improve the coverage and voice quality, Improve the connection rate, reduce dropped calls. And data services, wireless optimization objective is to improve the environment, improve the carrier to interference ratio, using a suitable coding scheme, to improve the system throughput, reduce packet retransmission ratio, the data transfer rate of the best. Two different business models, business forecasting methods so different, data services do not cover exactly the same with the voice work, Data service on the system put forward higher requirements. Means of the intelligent work optimization, automation direction. Network optimization is a long process, which runs through the whole process of work development. Network optimization through the parameters collection, statistical analysis, signaling to track, drive test analysis and other means of information gathering on a prehensive analysis of the entire munication work, Identify work problems by adjusting the work software, hardware configuration, so that the entire work to achieve the best conditions, so that the limited resources to efficient use. GSM 及其網(wǎng)絡優(yōu)化的方法 20 With the further development of work optimization, work optimization tools and means to keep the idea of artificial intelligence and expert systems and technology development, A lot of work analysis, planning, optimization software, through the introduction of intelligent decision support system, a reasonable knowledge base for wireless work optimization, Using effective reasoning mechanism can exist for certain work operations and service quality problems, Network Optimization to provide suitable solutions to problems proposed, but also the program can be given the necessary data analysis, and make the appropriate explanation. 譯文 移動通信網(wǎng)絡是一個動態(tài)變化的網(wǎng)絡。網(wǎng)絡的負載隨時都在變化，網(wǎng)絡上的業(yè)務會不斷地更新，網(wǎng)絡對資源的需求也會動態(tài)改變，這些都會導致運營商隨時準備對自己的網(wǎng)絡進行調整，以便優(yōu)化資源配置，合理地調整網(wǎng)絡的參數(shù)，使網(wǎng)絡達 到最佳的運行狀態(tài)。這就是移動網(wǎng)絡優(yōu)化要達到的目標。 隨著用戶需求的變化，移動運營商提供的業(yè)務也不斷擴充和豐富，網(wǎng)絡優(yōu)化的手段和內(nèi)容也不斷的變化，主要體現(xiàn)在以下幾個方面。 網(wǎng)絡優(yōu)化的重點從語音業(yè)務向數(shù)據(jù)業(yè)務和語音業(yè)務并重轉移 , 近些年來，移動數(shù)據(jù)業(yè)務的發(fā)展可謂日新月異。日益成熟的商業(yè)模式和不斷被挖掘出來的用戶需求已經(jīng)成為移動運營商的新的業(yè)務增長點，為了吸引更多的數(shù)據(jù)用戶，為用戶提供穩(wěn)定的無線上網(wǎng)環(huán)境，打造精品數(shù)據(jù)網(wǎng)絡已成為移動運營商進一步發(fā)展的重點，因此，對網(wǎng)絡優(yōu)化工作提出更高的要求，不但要為用戶提供良好 的語音覆蓋，并且要提供高速數(shù)據(jù)傳輸環(huán)境。 數(shù)據(jù)業(yè)務的優(yōu)化與語音業(yè)務網(wǎng)絡優(yōu)化有所不同，語音業(yè)務優(yōu)化目標就是采用合理的頻率復用方式，提高系統(tǒng)效率，改善覆蓋和話音質量，提高接通率，降低掉話。而數(shù)據(jù)業(yè)務優(yōu)化目標是改善無線環(huán)境，提高載干比，采用適合的編碼方案，提高系統(tǒng)的吞吐量，減少分組重發(fā)比率，使數(shù)據(jù)傳輸速率達到最佳。兩者的業(yè)務模型不同，因此業(yè)務量預測方法也不同，數(shù)據(jù)業(yè)務的覆蓋同語音業(yè)務網(wǎng)絡也不完全相同，數(shù)據(jù)業(yè)務對系統(tǒng)提出了更高的要求。 GSM 及其網(wǎng)絡優(yōu)化的方法 21 網(wǎng)絡優(yōu)化的手段向智能化、自動化方向發(fā)展 ,絡優(yōu)化是一個長期的過程，它貫穿于網(wǎng)絡 發(fā)展的全過程。網(wǎng)絡優(yōu)化通過參數(shù)采集、統(tǒng)計數(shù)據(jù)分析、信令跟蹤、路測信息采集分析等多種手段對整個通信網(wǎng)絡進行綜合分析，找出網(wǎng)絡存在問題，通過調整網(wǎng)絡的軟、硬件配置，使整個網(wǎng)絡達到最佳狀況，使有限的資源得以高效的利用。 隨著網(wǎng)絡優(yōu)化工作的進一步發(fā)展，網(wǎng)絡優(yōu)化的工具和手段不斷向人工智能和專家系統(tǒng)的思想和技術發(fā)展，出現(xiàn)不少網(wǎng)絡分析、規(guī)劃、優(yōu)化軟件，通過引入智能決策支持系統(tǒng)，建立合理的無線網(wǎng)絡優(yōu)化知識庫，運用有效的推理機制，可以針對網(wǎng)絡存在的某些運行和服務的質量問題，向網(wǎng)絡優(yōu)化人員提供合適的問題解決方案建議，還可以 對所給出的方案進行必要的數(shù)據(jù)分析，做出相應的解釋說明。 GSM 及其網(wǎng)絡優(yōu)化的方法 22 謝詞 三年大學生活很快就要結束了，我曾多么憧憬美好的學生時代，如今當自己臨近畢業(yè)時，我又留戀已經(jīng)流逝的三年學生生涯。 本文是在 徐亮 老師悉心指導和親切關懷下， 從課題選擇到具體的寫作過程，無不凝聚著徐亮老師的心血和汗水，在我的畢業(yè)論文寫作期間，徐亮老師為我提供了種種專業(yè)知識上的指導和一些富于創(chuàng)造性的建議，沒有這樣的幫助和關懷，我不會這么順利地完成畢業(yè)論文。 徐老師嚴謹?shù)膶W風 ，淵博的學識，謙遜的為人，豐富的實踐經(jīng)驗，高瞻遠矚、敏銳的科學 眼光，將是我永遠學習的楷模；老師樂觀、正直、樸實的生活態(tài)度，令我深深敬佩。老師的諄諄教誨，將使我終生受益。在此，謹致以衷心的感謝和崇高的敬意。 電信學 院的各位老師以及實習所在單位領導給了我很大幫助和啟示，使我學到更多的知識，從而順利的完成畢業(yè)論文。在此一并表示衷心的感謝。祝愿他們身體健康，工作順利，事業(yè)上取得更大成功。 我還要深深感謝我的家人和同學，是他們給予了我物質上的資助和精神上的鼓勵，使我得以順利完成學業(yè)。 誠地感謝所有在我三年讀書期間幫助過我的老師、同學和朋友，祝大家一生平安！