The Research And Application Of Multi-network Integrating Indoor Distribution System

With the advance of social communication technology, the modernized mobile communication tool is not only focused on mobile phones with calling function. The promising new development direction is multimedia functions, including data, digital images, and videos. Traditional mobile communication cannot satisfy the rich and diversified daily life of modern people, especially for those working or living in large architectures with high people density. People not only require the external mobile communication services, but also increasingly demand the indoor mobile communication service. Thus, people have even higher level of requirement for the indoor mobile communication system.With the development of modern city, large buildings and fancy architectures are commonly seen in city areas. Wirelesssignal is prone to the interference and disturbance, which makes the coverage of wireless signal to be more complicate. The penetration ability of current GSM, CDMA systems are relatively weak, thus, the indoor wireless signal received from outdoor base station may be unstable or even not able to connect. Due to such reason, it is crucial to overcome the problem with indoor wireless signal coverage.This article firstly explained the recent generations of network communication technology development. The feasibility and importance of multi-network integrating system was discussed. Then the working principle and function of multi-network integrating system and POI device were explained. Meanwhile, since the anti-disturbance problem is the first problem to be solved to make sure the other functionalities in the system are not influenced, the article also introduced the classification of network system, reasons for interference, calculation of interference, and possible ways to overcome the problems. Furthermore, this article explained the multi-network integrating indoor system, especially the system design requirement and installation requirement for several different distribution models. Lanzhou Western Railway Station was used as a model for detailed design and analysis of the indoor multi-network integrating system. The functional principle designs, selection of installation equipment and communication standard requirements were discussed in details. Lastly, after Lanzhou Western Railway Station was constructed, the different indicator requirement would be tested as the last part of this indoor multi-network integrating system. The data of different communication format network indicator would be analyzed to draw the conclusion.