CDMA與LTE雙網(wǎng)室內(nèi)分布系統(tǒng)組網(wǎng)與優(yōu)化研究
[Abstract]:The construction of 4G network has become one of the important strategies in the development of national information industry. All telecom operators in China are building 4G-LTE network on a large scale. Indoor distribution system as an important means of mobile network coverage, China Telecom has been laid in the 3G era. With the construction of LTE-FDD network, two kinds of networks with different coverage capability and service scenario will coexist for a long time. Therefore, LTE-FDD and the existing CDMA indoor double network construction and engineering optimization research, is being paid more and more attention. Based on the spatial loss model and link budget model, the indoor antenna coverage radius of CDMA and LTE-FDD is calculated from the three networking modes of CDMA and LTE indoor distribution systems. The frequency interference between systems is determined by theoretical analysis of intermodulation interference. Aiming at the problems of indoor distribution, such as weak coverage, signal leakage, mutual interference, cell switching and transmission rate, this paper puts forward the construction and special optimization strategy of indoor distribution system of CDMA and LTE-FDD double networks. And it is carried out and verified in the Prophase network test, design and construction of double network, system optimization and later acceptance of Hengyang China Telecom's double-network indoor distribution system. The completion of this project provides the following principles and optimization methods for the engineering practice of 4G indoor distribution, and provides a practical technical means for telecom operators to make effective use of the original indoor distribution system and to save energy consumption and cost. It has broad application prospect.
【學(xué)位授予單位】:湖南工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TN929.5
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