The Research And Design Of The Wireless Network Indoor Coverage In Dalian World Trade Center

With the rapid development of mobile communication services, people use mobile phones and other communication devices in large buildings (especially in hotel, high-rise residential and commercial centers), making the resulting data traffic increase day by day. Large amount of image data and voice data needs to be transmitted, which lead to concern about normal operating condition for communication system in ultra-high large buildings. Ultra-high large building itself has a certain shielding effect and the absorption effect, resulting in a large of signal transmission loss in a weak field intensity area and blind zone. In terms of capacity, along with the rising mobile phone usage and frequency, local-area network has failed to meet the needs of users. As for the communication quality, due to denser complex ultra-high buildings poured into cities, causing serious frequency interference between the high-rises.So that a phenomenon of overlap signals frequent switch happened, causing an unstable speech quality. In addition, with the applications of MMS and other image data services, users require a higher-quality service. Main means of competition for Mobile operators to get profit and the subject of network optimization are problem of indoor corner coverage optimization in ultra-high buildings.By means of method widely used in several kinds of buildings'indoor mobile network coverage optimization and Dalian's special topography with sea-land interface local and construction features, we proposed effective countermeasures for the ultra-high buildings indoor corner coverage optimization. At present, in actual project, we combine real situation indoor corner coverage optimization of high-rise buildings both at home and abroad. We make design for indoor network corner coverage optimization of ultra-high buildings in Dalian and let 3G plays a role in the communication network, which contribute a far-reaching significance to the development of Dalian Mobile.In this article, cellular and repeater are used as the information source; Radio frequency technology and fiber are used as transmission media; Centered around the frequency shift technique and elaborate the design ideas of indoor network corner coverage optimization of buildings.And the author takes one of the highest building, the world trade center as an example to detailed illustrate the network coverage optimization system of interior corner planning and design process, including its evidences and indexes, so as to optimize the solution of network loading capacity in a network with dense communication data.