A self-detecting model for coverage problems in urban radio access network

The communication environment of urban radio access network is complex and heterogeneous. In order to detect the coverage problem timely and reduce the cost by manual analysis, a self-detecting model for coverage problems in urban radio access network is proposed. Firstly, the coverage is estimated by cell-base-coverage estimation and terrain-base-coverage estimation. Then, the level for UE data collection is confirmed, and the location of UE is recorded with a time stamp when UE´s communication is abnormal. At last, the coverage abnormal area is show in the map by UE-reflect-area. In the last part of the paper, a simulation is made to test the effectives of the self-detecting model.