本文選題：TD-SCDMA　切入點：網(wǎng)絡　出處：《西安電子科技大學》2014年碩士論文　論文類型：學位論文

【摘要】：隨著移動通信技術的快速發(fā)展，用戶對移動通信業(yè)務的需求和運營商提供的通信質量之間矛盾越來越多，移動通信市場的競爭日益激烈，網(wǎng)絡質量的優(yōu)劣已成為運營商爭搶客戶、把握成敗的關鍵。中國移動作為我國第一個具有自主知識產權的第三代移動通信技術主流標準TD-SCDMA網(wǎng)絡運營商，如何為廣大客戶提供優(yōu)質、高效的網(wǎng)絡質量是面臨的一個重要問題。 正在運行的通信網(wǎng)絡上所作的任何改動都意味著風險，與通信網(wǎng)絡追求穩(wěn)定可靠的宗旨相違背，但是由于宏觀經(jīng)濟不斷發(fā)展、城市建設的不斷變遷以及運營商各種業(yè)務的開展，通信網(wǎng)絡中的無線接入部分不可能是一成不變的，無線網(wǎng)絡調整和優(yōu)化是必然的過程。 細致、完善的網(wǎng)絡優(yōu)化，可以改善網(wǎng)絡運行性能，降低網(wǎng)絡干擾，提高網(wǎng)絡接通率，降低業(yè)務異常現(xiàn)象，提高網(wǎng)絡數(shù)據(jù)業(yè)務能力，改善切換成功率，提升網(wǎng)絡容量。網(wǎng)絡優(yōu)化的意義在于維持網(wǎng)絡處于較好的運行狀態(tài)。 本文首先對TD-SCDMA的基本原理、關鍵技術、信令流程及網(wǎng)絡優(yōu)化等進行簡單介紹，重點對TD-SCDMA網(wǎng)絡中存在的覆蓋、掉話、切換、干擾、2/3G互操作等問題結合工作中遇到的優(yōu)化案例進行分析研究，主要從問題形成原因、解決方法、效果驗證等方面進行研究論證。本文研究主要得到了如下結果和結論：（1）對于覆蓋問題優(yōu)化主要從工程參數(shù)如天線方位角、下傾角等入手，再結合系統(tǒng)參數(shù)來改善小區(qū)的覆蓋范圍，對于嚴重弱覆蓋區(qū)域需要增加基站來完善。（2）對于切換問題優(yōu)化主要從切換時目標小區(qū)的狀態(tài)、源小區(qū)和目標小區(qū)之間的參數(shù)設置是否合理、小區(qū)覆蓋范圍內的無線環(huán)境等著手分析，解決好這些問題切換成功率會提升很多。（3）對于掉話問題優(yōu)化需要判斷掉話時問題點的無線環(huán)境，從無線環(huán)境來確定引起掉話是由覆蓋、切換還是干擾引發(fā)的。（4）對于干擾問題優(yōu)化重點在干擾源的判斷和確定上，當確定了產生干擾的干擾源，我們就可以針對性的來規(guī)避干擾源對我們的干擾情況。（5）對于2/3G問題優(yōu)化既要關注TD-SCDMA網(wǎng)絡側的參數(shù)配置，也要關注GSM網(wǎng)絡側的參數(shù)配置，避免出現(xiàn)頻繁切換和重選。 本文只是對TD-SCDMA網(wǎng)絡優(yōu)化部分方法進行了研究，，隨著用戶規(guī)模和網(wǎng)絡結構的不斷擴大，網(wǎng)絡中的問題越來越繁雜，這就需要我們應用網(wǎng)絡優(yōu)化手段快速定位問題、解決問題，為用戶提供更加優(yōu)質高效的網(wǎng)絡。
[Abstract]:With the rapid development of mobile communication technology, there are more and more contradictions between users' demand for mobile communication services and the communication quality provided by operators, and the competition in the mobile communication market is becoming increasingly fierce. The quality of the network has become the key for operators to compete for customers and grasp the success or failure. China Mobile is the first 3G mobile communication technology mainstream standard TD-SCDMA network operator with independent intellectual property rights in China. How to provide high-quality and high-efficient network quality for customers is an important problem. Any changes made on a functioning communications network represent a risk contrary to the purpose of the communication network in pursuit of stability and reliability, but as a result of macroeconomic developments, With the continuous changes of urban construction and the development of various services of operators, the wireless access part of communication network can not be fixed, and the adjustment and optimization of wireless network is an inevitable process. Careful and perfect network optimization can improve network performance, reduce network interference, increase network connection rate, reduce service anomaly, improve network data service ability, and improve handover success rate. Improve network capacity. The significance of network optimization is to maintain the network in a better state of operation. In this paper, the basic principle, key technology, signaling flow and network optimization of TD-SCDMA are briefly introduced, with emphasis on the coverage, dropping and switching in TD-SCDMA network. The interference 2 / 3 interoperability and other problems are analyzed and studied in combination with the optimization cases encountered in the work, mainly from the causes of the problems and the solutions. The main results and conclusions of this paper are as follows: (1) the optimization of coverage problem is mainly based on the engineering parameters such as antenna azimuth angle, downdip angle, etc. Combining system parameters to improve the coverage of the cell, for the serious weak coverage area need to add a base station to improve. 2) for the handoff problem, the state of the target cell is mainly optimized from the handover. Whether the setting of parameters between the source cell and the target cell is reasonable or not, and whether the wireless environment in the area covered by the cell is reasonable or not, and so on, To solve these problems, the success rate of handoff will be improved a lot.) for the optimization of the drop problem, we need to determine the wireless environment of the problem point when the call is dropped. From the wireless environment, we can determine whether the drop is caused by overlay. Switching or interference induced.) the optimization of interference problem is focused on the judgment and determination of interference source, when the interference source is determined, We can avoid the interference of interference sources to us. (5) for the 2 / 3G problem, we should not only pay attention to the parameter configuration of TD-SCDMA network side, but also to the parameter configuration of GSM network side so as to avoid frequent handoff and reselection. This paper only studies some methods of TD-SCDMA network optimization. With the continuous expansion of user scale and network structure, the problems in the network become more and more complicated, which requires us to use network optimization means to quickly locate the problem and solve the problem. To provide users with a more quality and efficient network.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN929.53

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本文編號：1645352