The Research Of Beijing Unicom Wcdma Network Indoor Distribution System Construction

Mobile communication technology has experienced the first generation analog cellular system and the second generation digital cellular communication technology for multimedia communications, currently consisting mainly of the third generation mobile communication technology are popularized. It includes WCDMA, CDMA2000and TD-SCDMA etc.. WCDMA is the flagship company of Beijing Unicom3G wireless network technology, since2009, China Unicom is the network coverage and promotion energetically. This paper combined with the actual participation in the construction project is the study of WCDMA network coverage for the interior of the building indoor distribution system counts and practical implementation.Indoor distribution system is aimed at an indoor user group, used to improve building in mobile communication environment of a successful program, in last few years in all parts of the country’s mobile operators have been widely applied in the. The principle is the use of indoor distributed system signal is evenly distributed in the indoor coverage area, thus ensuring the indoor area has a good coverage. The system consists of a source and distribution system is composed of two parts, the main components of an omnidirectional antenna, coupling, power divider. The main design principles to the antenna AP uniform seamless coverage in building interior corners; also need to consider adopting which kind of signal switching mode.The thesis first introduces the3G wireless network definition, classification, research of the WCDMA network system architecture, main performance index and function, analysed WCDMA indoor distributed system technology index and composition, combining with the actual project, focusing on the XX building in Beijing as an example discussed the Beijing Unicom WCDMA wireless indoor distribution system design, construction situation, involving the performance index, technical index, network topology, spot setting principles such as respect, and to the Beijing Unicom WCDMA wireless network construction scheme gives suggestions.