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Indoor distribution system is a very effective means to solve the problem of the weak coverage of mobile communication signals within the building and share the surrounding base stations, high-load. But how to build an indoor distribution system to meet the needs of CDMA, GSM, WCDMA, DCS, and TD-SCDMA network?This paper analyzes the indoor distribution system to build multiple networks need to address a range of issues, including all system source capacity configuration, interference between the various systems cause system performance degradation, isolation bandwidth solutions, passives support, the signal coverage patterns, and balancing of the traffic capacity of the wireless signal link analysis. And indoor distribution system combined with multi-network in the case of practical applications in large venues, the above issues were discussed on the network capacity and coverage in effect two sides of a detailed test analysis, specific indicators, including traffic statistics, congestion rate, voice service coverage test, CQT test statistics, data services, download tests, fed standing wave, the antenna port output power in the full demonstration of the technology level indoor distribution system for multi-network construction in large venues is feasible.
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