SoftBank Corp. (“SoftBank”) and its subsidiary HAPSMobile Inc. (“HAPSMobile”) today announced they developed a radiowave propagation simulator for High Altitude Platform Station (HAPS) stratospheric-based wireless communication systems. The simulator implements the “HAPS Radiowave Propagation Prediction Method*1,” which became part of the International Telecommunication Union Radiocommunication Sector (ITU-R*2)’s global standard based on contributions from SoftBank and…