本文關(guān)鍵詞：基于TD-LTE蜂窩網(wǎng)絡(luò)的覆蓋規(guī)劃及性能研究　出處：《寧夏大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

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【摘要】：LTB的全稱是Long Time Evolution,我國在LTE的技術(shù)標(biāo)準(zhǔn)下,制定了TD-LTE無線網(wǎng)絡(luò)標(biāo)準(zhǔn)。2013年年底,TD-LTE正式投入商用運(yùn)營,在這樣一個大的市場背景之下,大量TD-LTE網(wǎng)絡(luò)規(guī)劃建設(shè)工程正緊鑼密鼓地展開,網(wǎng)絡(luò)的規(guī)劃和優(yōu)化日趨成為電信運(yùn)營商們關(guān)注的熱點。如何在滿足工程指標(biāo)的前提下,達(dá)到區(qū)內(nèi)最大面積的覆蓋,并且在有限的頻譜和帶寬資源下引入OFDM技術(shù)提高系統(tǒng)利用率,減少系統(tǒng)內(nèi)或者系統(tǒng)間的干擾,并降低設(shè)備成本,成為亟待解決的課題。 本文基于TD-LTE無線網(wǎng)絡(luò),主要研究蜂窩網(wǎng)絡(luò)的覆蓋規(guī)劃。第一部分首先介紹了TD-LTE的基本架構(gòu)與原理、OFDM、MIMO等關(guān)鍵技術(shù),并與FDD系統(tǒng)比較了各自的共性與個性,為后面的TD-LTE無線網(wǎng)絡(luò)覆蓋規(guī)劃做了一個理論鋪墊。第二部分根據(jù)TD-LTE無線網(wǎng)絡(luò)的各種特點,闡述了基于無線網(wǎng)絡(luò)覆蓋的基本規(guī)劃流程、方法和需要用到的參數(shù),并且簡要分析了幾個影響覆蓋的因素。第三部分根據(jù)不同的場景和需求,建立合適的傳播模型,通過鏈路仿真和鏈路預(yù)算得出覆蓋所需的規(guī)模參數(shù)。根據(jù)上述的步驟,第四部分使用Atoll仿真軟件對覆蓋規(guī)劃地區(qū)的無線網(wǎng)絡(luò)進(jìn)行仿真,并結(jié)合仿真結(jié)果分析信號覆蓋的質(zhì)量與性能參數(shù),比如RSRP和SINR等。仿真分析后,首先從編碼方式,鄰區(qū)干擾等因素入手分析并對比造成無線網(wǎng)絡(luò)覆蓋性能差異的各參數(shù),然后通過對天線角度和功率等參數(shù)的調(diào)整與對比優(yōu)化網(wǎng)絡(luò)的覆蓋質(zhì)量,最終實現(xiàn)規(guī)劃總目標(biāo)。 仿真結(jié)果對于TD-LTE無線網(wǎng)絡(luò)規(guī)劃有一定的指導(dǎo)意義,對各參數(shù)的分析也能夠在無線網(wǎng)絡(luò)優(yōu)化過程中起到參考作用。
[Abstract]:LTB is the abbreviation of Long Time Evolution, China's technical standards in LTE, developed a TD-LTE wireless network standard of.2013 at the end of the year, TD-LTE officially put into commercial operation, under such a big market background, a large number of TD-LTE network planning and construction project planning and optimization of wildly beating gongs and drums to start the network increasingly become the focus of telecom operators taking attention. How to meet the engineering requirements, the maximum area within the area of coverage, and the introduction of OFDM technology in the limited spectrum and bandwidth resources to improve system utilization, reduce the interference of the system or systems, and reduce the cost of equipment, become the urgent task.
In this paper, based on the TD-LTE wireless network coverage planning focuses on cellular networks. The first part introduces the basic structure and principle of TD-LTE, OFDM, MIMO and other key technologies, and compares the commonness and individuality of their own with the FDD system, TD-LTE wireless network coverage planning behind a theoretical groundwork for the second part according to the various. The characteristics of TD-LTE wireless network, expounds the basic planning process of wireless network coverage based on the methods and parameters needed, and a brief analysis of the factors affecting the coverage. The third part according to the different scenarios and requirements, the establishment of appropriate propagation model, the scale parameter coverage required by simulation. According to the link and link budget the above steps, the fourth part uses Atoll software to simulate wireless network coverage planning area, combined with the quality of signal coverage analysis of simulation results And the performance parameters, such as RSRP and SINR. After simulation analysis, first of all from the encoding, adjacent area interference and other factors are analyzed and compared by the parameters of the wireless network coverage performance differences, and then through the adjustment of antenna angle and power parameters compared with the optimization of the network coverage quality, and ultimately achieve planning overall goal.
The simulation results have some guiding significance for TD-LTE wireless network planning, and the analysis of each parameter can also play a reference role in the process of wireless network optimization.

【學(xué)位授予單位】：寧夏大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.5

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本文編號：1382243