Research On Cell Depth Coverage For LTE Network

The service level of an operator is based on the network coverage,quality and capacity.As the construction of Macro base station,Micro base station,Small site,Repeater,Indoor distribution system,the overall network coverage has reached a higher level.Though some relatively closed places like guesthouse,hotel,business club and undergrounds are facing low coverage due to the factors such as building blocks and signal fast failure,and it has been solved step by step.However,the complexity of the wireless network environment and physical environment and the difficulty of site-selecting made that there are still some areas that exist low coverage.And residential community is one of them.How to solve the cell depth coverage has been the primary task of network planning.Through LTE base station,the outdoor signal in residential community will generally meet the coverage requirements,and the difficulty of coverage are:1,because of the multilayer residential building span is small,signal through more difficult,so a lot farther from the base station low layers a farther from the base station of multi-storey residential community are weak coverage;2,the signal in high layers of high-rise residential can get a lot of very miscellaneous,no main cells,mutual interference between signals,influence network quality,so the coverage in high-rise is bad;3,underground parking,elevator and clubs because of the relatively closed,and signal outside can't cover these closed area,if there are no Cell distribution systems,in general,these area is no signal.Covering residential community should be considered two factors:1,the characteristics of LTE,LTE can be used in a high frequency,so the range is small,the penetration ability is weak,after using 2 g/3 g frequency,can increase the coverage distance,enhance the penetration;LTE network flat structure,reduce the network latency;LTE application of key technologies,promote network coverage ability,improve the network transmission rate,strengthened the reliability of the network.2,the plot itself characteristics,the distribution of community building,the density of height,structure,material,such as signal transmission has great influence to the network,the influence of which is the building height and distribution,in this paper,according to height in residence community is divided into low community,high-rise residential community,comprehensive large community.The coverage of residential community has its own feature.The specifications of network,its coverage methods,the selection of antenna and site all need to meet the characteristics of coverage.Based on the classification of residence community,the paper respectively discusses the features of low-and-mid-rise community and high-rise community and integrated large community,coverage requirements and methods,and solution.In the end,combined with practical engineering case,the paper analyzes the process of coverage of all kinds of residential community,the program planning and design,and the performance of network before and after the project,so as to realize the depth of the coverage of residential community.The rapid popularization of smart-phone and the progressive development of the future Internet of Things in recent years made the data services requirements grown tremendously.The capacity of network will gradually become the bottleneck of further development of business.Only by strengthening and optimizing the rules of the mobile communication network,increasing the frequency resources and developing the smart antenna technology,then we will be able to multiply improve the capacity of network,improve the performance of LTE network,obtain good perception and finally ensure the quality and stability of network so as to meet the needs of future communication on network.