Method for predicting indoor three-dimensional space field strength from outdoor to indoor with propagation models

• Main Authors: QIN CHUNXIA, LAI ZHIHUA, XIA BING
• Format: Patent
• Language: English
• Published: 18.02.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

The invention relates to a method for predicting indoor three-dimensional space field strength from outdoor to indoor with propagation models. The method includes: establishing three-dimensional scene models between a launching base station and a targeted building; predicting the space field strength of an outer envelop of an expanded COST231-Walfisch-Ikegami propagation model; generating a series of virtual rays from outdoor to indoor on the outer envelop of the targeted building according to certain resolution; simulating the propagation process of the virtual rays by means of a ray tracing propagation model algorithm, and predicting the three-dimensional space field strength in the targeted building. The expanded COST231-Walfisch-Ikegami propagation model is adopted in outdoor areas of the launching base station and the targeted building, the ray tracing propagation model algorithm is adopted inside the targeted building, the outdoor experienced propagation model and an indoor certainty propagation model are effectively combined, calculating efficiency and calculating accuracy are well balanced, and engineering applicability of the algorithm is high.