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The Study for Interference of High Building Coverage

Author: WangJunShan
Tutor: WangWeiDong
School: Beijing University of Posts and Telecommunications
Course: Electronics and Communication Engineering
Keywords: Indoor coverage High level Optimization Interference
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 83
Quote: 2
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Abstract


The early construction of the mobile communication network to outdoor coverage, the main means of macrocell base stations, repeaters, and other types of micro-cellular base station, indoor coverage solution consisting essentially of outdoor base stations. Most of these base stations with a higher power and higher antenna gain to achieve the target cell building service area coverage. But in the actual environment, there is a lot of traffic is high and wireless propagation environment harsh or difficult to build a base station area, relying solely on such methods are difficult to achieve good coverage of these areas requires special indoor coverage to resolve. With the continuous development of communication networks, and rapid urban construction in the cities, the status of indoor coverage is becoming increasingly important. With the majority of users of mobile communication service quality requirements continue to increase, just outside providing good quality of mobile communication has been unable to meet the needs of market development, the mobile network must also provide good indoor coverage. Especially for 3G services, as the particularity of its business, the majority of users are using the high-speed service at a fixed location indoors, indoor business accounts for a large proportion. It can be said that the future network development, indoor coverage will become the operator key to success. Good indoor coverage has become a development of the user, improve market competitiveness of an important means of development of 3G services is crucial. Inherited from the 2G indoor coverage interior construction mode makes the site a lot of problems, these problems are particularly prominent in the upper cover. Including signal clutter, no master serving cell, the signal fluctuations, interference, poor call quality, call drop rate and so on. Top cover problem solving becomes an important issue. This paper focuses on indoor coverage optimization of high-level interference issues covered by high-level analysis of the causes of interference problems is proposed indoor and outdoor collaborative optimization solutions. By simultaneously adjusting outdoor and indoor stations to control and improve coverage, thereby reducing signal interference level. Focus on the adjustment of the antenna to increase the green cover outdoor antenna, reducing interference between indoor cell several methods, and through engineering examples demonstrate these optimization methods can be implemented and effective. For 2G and 3G, indoor coverage optimization level has a certain reference.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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