A Study Of The Electromagnetic Wave Propagation Model Correction Method On BCCH Channel

In recent years,with the rapid development of mobile Internet services,mobile communication has become an indispensable tool in people's lives.For the mobile communication operators,how to ensure that the planning of the network to meet the customer's needs,one of the most important work is to estimate the coverage prediction network field distribution in the region,to determine network problems,and further improve the planning and targeted optimization.The calibration method for the propagation model based on the prediction of coverage,the propagation model is introduced and analyzed,the correction may be encountered in the propagation model for a detailed analysis,the shortcomings and difficulties compared with the traditional method,according to the corresponding solutions,and gives the work process,solving the propagation model calibration of large investment,difficult operation and other issues.The main innovations of this paper are as follows:1.In order to correct the existing communication models,testing tools,it is difficult to obtain the complex situation,put forward a kind of alternative solutions,through the old network idle equipment,set up test platform dedicated to power,measured by the BCCH channel of the GSM site of the way of calculation,loss on the propagation path,then the propagation calibration of the model in detail.2.According to the new correction method with the traditional method,put forward a kind of optimization process maintenance,propagation model is suitable for operators,normalized,standard propagation model calibration work lay a foundation.Through the use of the process,so that the propagation model in the network planning,network optimization plays a fundamental role in the real right.The main contents of this paper are as follows:1.The effect of propagation model in the network planning,network optimization analysis,clear the main effect of the electromagnetic wave propagation in the mobile communication network,and all kinds of influence on the propagation model in the analysis of.2.The propagation model calibration in a big city,to verify the practicability of the new propagation model calibration platform.Based on the old equipment,through the new omnidirectional antenna,single open test area,and through the detailed test multiple sites,the propagation model of city environment correction.Through the analysis of the results,we can see that the method without use of special test equipment,also can meet the requirements of data acquisition of propagation model calibration,reached a preliminary analysis of the effect.3.In Northern Shaanxi and Guanzhong area,through three different environment in rural areas to test,verify the validity of the proposed new platform in the other scene environment.Based on the plain,mountainous,hilly and gully scene test,comparison and analysis of the application of the model calibration method in different geographical environments.4.Through the analysis of the similarities and differences between calibration platform platform with the traditional model,clear the advantages and disadvantages of the old and new platform.By using the method of special base station confirmed the BCCH channel test,in the practical work of propagation model calibration,and brought the traditional calibration model for long-term use,platforms do not have the results before and after several more convenient use effect.5.Through detailed analysis of the content of the new propagation model calibration platform based on the proposed model,the spread of new maintenance process,make clear provisions on the use of the source model calibration equipment.At the same time according to the propagation model calibration using requirements,time requirements,the scope of the request of different model,for the operators to better execution model provides the basis for the correction.