發(fā)布時間：2018-07-26 09:36

【摘要】：干擾一直是移動通信系統(tǒng)中一個重要的課題，是影響移動通信系統(tǒng)的重要因素，其本質(zhì)就是未按頻率分配規(guī)定的信號占據(jù)了合法信號的頻率，影響合法信號的正常工作，這也就產(chǎn)生了不同系統(tǒng)間的共存問題。隨著計算機和通信技術(shù)的迅猛發(fā)展，各種系統(tǒng)之間的共存將會長期存在。 作為中國移動運營商采用的第三代系統(tǒng)方案，，具有中國自主知識產(chǎn)權(quán)的TD-SCDMA在中國的建網(wǎng)已經(jīng)不斷的完善，而TD-LTE是TD-SCDMA的自然演進路徑。在中國政府和中國移動以及產(chǎn)業(yè)界的共同努力下，TD-LTE將有更廣闊的前景，因此，研究TD-SCDMA與TD-LTE的共存干擾具有實際意義。 本文主要介紹了在大唐電信研究TD-SCMDA和TD-LTE兩個系統(tǒng)共站和非共站的干擾問題。采用確定性分析法和蒙特卡洛系統(tǒng)仿真法，對TD-SCDMA與TD-LTE兩系統(tǒng)之間干擾問題進行研究。 本文先采用確定性分析法，初步計算出這兩個系統(tǒng)之間在不同頻段時雜散干擾的情況。通過合理的時隙配置，使得兩個系統(tǒng)同步，規(guī)避基站間的干擾。然后采用靜態(tài)仿真方法，對兩系統(tǒng)宏小區(qū)在共站和非共站的場景下進行仿真，得出仿真的結(jié)果，對TD-SCDMA系統(tǒng)和TD-LTE系統(tǒng)的混合組網(wǎng)具有重要的參考價值。
[Abstract]:Interference has always been an important subject in mobile communication system and an important factor affecting mobile communication system. Its essence is that the signal which is not assigned according to the frequency has occupied the frequency of the legitimate signal and affected the normal operation of the legitimate signal. This also gives rise to the problem of coexistence between different systems. With the rapid development of computer and communication technology, the coexistence of various systems will exist for a long time. As the third generation system scheme adopted by Chinese mobile operators, TD-SCDMA with China's own intellectual property rights has been continuously improved in China, and TD-LTE is the natural evolution path of TD-SCDMA. With the joint efforts of the Chinese government, China Mobile and industry, TD-LTE will have a broader prospect. Therefore, it is of practical significance to study the coexistence of TD-SCDMA and TD-LTE. This paper mainly introduces the co-station and non-costation interference of TD-SCMDA and TD-LTE in Datang Telecom. The interference between TD-SCDMA and TD-LTE systems is studied by deterministic analysis and Monte Carlo system simulation. In this paper, deterministic analysis method is used to calculate the stray interference between the two systems at different frequency bands. Through reasonable time slot configuration, the two systems are synchronized to avoid interference between base stations. Then the static simulation method is used to simulate the two system macro cells in the co-station and non-co-station scene. The simulation results show that the simulation results have important reference value for the hybrid networking of TD-SCDMA system and TD-LTE system.
【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】：2013
【分類號】：TN929.5

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相關期刊論文 前1條

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