毕业设计----GSM直放站设计

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1、 GSM 网络直放站设计 摘要摘要 直放站是一种中继产品，衡量直放站好坏的指标主要有，智能化程度（如远程监 控等）、低噪声系数(NF)、整机可靠性、良好的技术服务等。 使用直放站作为实现“小容量、大覆盖”目标的必要手段之一，主要是由于使用 直放站一是在不增加基站数量的前提下保证网络覆盖， 二是其造价远远低于有同 样效果的微蜂窝系统。直放站是解决通信网络延伸覆盖能力的一种优选方案。它 与基站相比有结构简单、投资较少和安装方便等优点，可广泛用于难于覆盖的盲 区和弱区，如商场、宾馆、机场、码头、车站、体育馆、娱乐厅、地铁、隧道、 高速公路、海岛等各种场所，提高通信质量，解决掉话等问题。 关键字：直放

2、站、GSM、设计 Design of GSM network repeater Abstract Repeater is a relay product, good or bad indicators to measure the main repeater, intelligent (such as remote monitoring, etc.), low noise figure (NF), machine reliability, excellent technical services. Achieved using the repeater as a “small capacity

3、, large coverage“ one of the means necessary to target, mainly due to increased use of the base station repeater First, the number does not guarantee coverage under the premise, and second, the cost is much lower than that the same effect of micro-cellular systems. Extended to solve the communicatio

4、n network repeater coverage of a selection program. It is simple in structure compared with the base station, less investment, and ease of installation, etc., can be widely used for difficult to cover blind spots and weak areas, such as shopping malls, hotels, airports, terminals, stations, sports, entertainment halls, subways, tunnels, highway, islands and other places, to improve communication quality, dropped calls and other issues to resolve Keywords: Repeater, GSM, design 目 录 摘要 1 1.1 直