本文選題：TD-LTE + 覆蓋��； 參考：《吉林大學(xué)》2014年碩士論文

【摘要】：隨著數(shù)據(jù)業(yè)務(wù)量的爆炸式增長(zhǎng)，網(wǎng)絡(luò)利用率不斷攀升，受TD-SCDMA產(chǎn)業(yè)鏈規(guī)模能力、技術(shù)特性等的影響，TD-SCDMA在傳輸速率、運(yùn)營(yíng)成本、覆蓋成本、用戶體驗(yàn)、無(wú)線帶寬等方面同競(jìng)爭(zhēng)對(duì)手相比，均存在明顯的劣勢(shì)。因此，盡快將TD-SCDMA網(wǎng)絡(luò)向TD-LTE網(wǎng)絡(luò)演進(jìn)，真正有效地建立起TD系統(tǒng)在未來(lái)的寬帶移動(dòng)市場(chǎng)、移動(dòng)互聯(lián)網(wǎng)市場(chǎng)、物聯(lián)網(wǎng)市場(chǎng)的競(jìng)爭(zhēng)力，是中國(guó)移動(dòng)新時(shí)期應(yīng)對(duì)競(jìng)爭(zhēng)、保持技術(shù)領(lǐng)先優(yōu)勢(shì)的重要舉措。 本文通過(guò)對(duì)現(xiàn)有GSM網(wǎng)和TD-SCDMA網(wǎng)所能承載業(yè)務(wù)的能力、各網(wǎng)已建設(shè)基站數(shù)量及覆蓋范圍等情況的調(diào)查和分析。根據(jù)TD-LTE的業(yè)務(wù)特點(diǎn)，結(jié)合目前網(wǎng)絡(luò)承載業(yè)務(wù)的發(fā)展情況，對(duì)業(yè)務(wù)進(jìn)行合理分析及預(yù)測(cè)。科學(xué)預(yù)測(cè)話務(wù)分布，合理布局網(wǎng)絡(luò)，均衡話務(wù)量，結(jié)合四網(wǎng)協(xié)調(diào)發(fā)展策略，得出TD-LTE網(wǎng)絡(luò)需要建設(shè)的重點(diǎn)區(qū)域及預(yù)計(jì)承載的業(yè)務(wù)量。并對(duì)TD-LTE網(wǎng)絡(luò)架構(gòu)及幾個(gè)關(guān)鍵技術(shù)進(jìn)行了深入研究，在此基礎(chǔ)上，結(jié)合LTE試驗(yàn)網(wǎng)的經(jīng)驗(yàn)數(shù)據(jù)確定TD-LTE網(wǎng)絡(luò)的建設(shè)原則。主要研究?jī)?nèi)容如下： 在確定規(guī)劃區(qū)域及覆蓋要求的基礎(chǔ)上，通過(guò)對(duì)現(xiàn)網(wǎng)數(shù)據(jù)業(yè)務(wù)分析找出數(shù)據(jù)業(yè)務(wù)熱點(diǎn)區(qū)域，結(jié)合覆蓋質(zhì)量目標(biāo)來(lái)確定TD-LTE網(wǎng)絡(luò)建網(wǎng)初期的網(wǎng)絡(luò)覆蓋方案。并對(duì)現(xiàn)網(wǎng)站址進(jìn)行系統(tǒng)外干擾排查及分析，發(fā)現(xiàn)高干擾風(fēng)險(xiǎn)基站，提出具體的規(guī)避措施，以確定TD-LTE網(wǎng)絡(luò)頻率的使用方案。根據(jù)電波傳播模型來(lái)計(jì)算TD-LTE基站的覆蓋半徑，最終得出TD-LTE網(wǎng)絡(luò)建設(shè)方案。根據(jù)網(wǎng)絡(luò)擴(kuò)容、特殊場(chǎng)景及技術(shù)演進(jìn)的需求，確定天線使用方案。 通過(guò)網(wǎng)絡(luò)規(guī)模估算，確定區(qū)域內(nèi)需要建設(shè)的基站數(shù)目及其基站位置。完成初步的站址規(guī)劃后，將站址規(guī)劃方案輸入到TD-LTE規(guī)劃仿真軟件中進(jìn)行覆蓋及容量仿真分析，通過(guò)仿真分析輸出結(jié)果，進(jìn)一步評(píng)估目前建設(shè)方案是否可以滿足覆蓋及容量目標(biāo)，如部分區(qū)域不能滿足要求，則需要對(duì)建設(shè)方案進(jìn)行調(diào)整修改，使得建設(shè)方案最終滿足規(guī)劃目標(biāo)的要求。最終總結(jié)出可行的TD-LTE網(wǎng)絡(luò)建設(shè)方案。 TD-LTE在網(wǎng)絡(luò)建設(shè)時(shí)還需要考慮TD-SCDMA系統(tǒng)現(xiàn)網(wǎng)實(shí)際部署情況，，不僅要借鑒現(xiàn)有系統(tǒng)的規(guī)劃方案，因地制宜規(guī)劃建設(shè)TD-LTE網(wǎng)絡(luò)，還需要兼顧系統(tǒng)間的共存與運(yùn)營(yíng)平衡問(wèn)題，力求在網(wǎng)絡(luò)建設(shè)方案上達(dá)到優(yōu)良性能與低廉成本的完美結(jié)合。 本文的研究工作和成果為T(mén)D-LTE網(wǎng)絡(luò)建設(shè)提供了技術(shù)參考，具有理論和實(shí)際工程意義。
[Abstract]:With the explosive growth of data traffic, the network utilization rate is increasing, and TD-SCDMA is affected by the TD-SCDMA industry chain scale capability, technical characteristics and so on in the transmission rate, operation cost, coverage cost, user experience, etc. Wireless bandwidth and other aspects compared with competitors, there are obvious disadvantages. Therefore, developing TD-SCDMA network to TD-LTE network as soon as possible and establishing the competitiveness of TD system in the future broadband mobile market, mobile Internet market and Internet of things market is the competition of China Mobile in the new era. An important move to maintain a leading edge in technology. This paper investigates and analyzes the capacity of the existing GSM and TD-SCDMA networks to carry services, the number and coverage of the base stations that have been built in each network. According to the characteristics of TD-LTE service and the development of network bearer service at present, the service is analyzed and forecasted reasonably. Scientific prediction of traffic distribution, rational distribution of network, balanced traffic, combined with the coordinated development strategy of four networks, the key areas to be constructed and the traffic volume expected to be carried by TD-LTE network are obtained. The TD-LTE network architecture and several key technologies are deeply studied. On the basis of this, the construction principle of TD-LTE network is determined by combining the empirical data of LTE experimental network. The main contents of the study are as follows: On the basis of determining the planning area and the coverage requirement, the hot spot area of the data service is found through the analysis of the existing network data services, and the coverage scheme in the initial stage of the TD-LTE network construction is determined by combining the coverage quality target. In order to determine the frequency of TD-LTE network, this paper investigates and analyzes the current site, finds out the base station with high interference risk, and puts forward some concrete measures to avoid it. The coverage radius of TD-LTE base station is calculated according to the radio wave propagation model, and finally the TD-LTE network construction scheme is obtained. According to the requirements of network expansion, special scenarios and technological evolution, the antenna usage scheme is determined. The number of base stations to be built and the location of the base stations in the region are determined by estimating the network size. After the initial site planning is completed, the site planning scheme is input into the TD-LTE planning simulation software for coverage and capacity simulation analysis. Through the simulation analysis of the output results, it further evaluates whether the current construction plan can meet the coverage and capacity objectives. If part of the area can not meet the requirements, it is necessary to adjust and modify the construction plan, so that the construction plan can meet the requirements of the planning objectives. Finally, the feasible scheme of TD-LTE network construction is summarized. TD-LTE also needs to consider the actual deployment of TD-SCDMA system in network construction, not only drawing lessons from the existing system planning scheme, planning and building TD-LTE network according to local conditions, but also taking into account the coexistence and operational balance between systems. In the network construction program to achieve good performance and low-cost perfect combination. The research work and results of this paper provide a technical reference for the construction of TD-LTE network, and have theoretical and practical engineering significance.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 趙旭凇;張新程;徐德平;張炎炎;;TD-LTE無(wú)線網(wǎng)絡(luò)規(guī)劃及性能分析[J];電信工程技術(shù)與標(biāo)準(zhǔn)化;2010年11期

2 呂驥;練成棟;;LTE的規(guī)劃和應(yīng)用[J];電信科學(xué);2010年01期

3 劉莉;曹亙;張欣;楊大成;;TD-LTE系統(tǒng)與WCDMA及TD-SCDMA系統(tǒng)干擾共存分析[J];廣東通信技術(shù);2010年07期

4 周小琳;;淺析TD-LTE的技術(shù)特點(diǎn)及優(yōu)勢(shì)[J];電子制作;2013年14期

5 陳亮;李玉;徐景;胡艷軍;;LTE上行鏈路HARQ重傳方案研究[J];計(jì)算機(jī)工程與應(yīng)用;2012年13期

本文編號(hào)：1938215