Air-surface test system and method to evaluate potential wireless base station sites

摘要

The air/surface test system is the first mobile, self-contained apparatus that include telecommunications and automatic position-locating test equipment attached to an aircraft secured to the surface and that is used to accurately evaluate wireless field strengths and locate potential wireless base station sites. The test equipment includes a transmitter, an antenna, and an automatic position-locating system, and is used to simulate a potential base station antenna. Once the test equipment is positioned at a selected elevation, the transmitter produces propagation test signals that are selectively broadcast from the antenna. At the same time, the automatic position-locating system receives and broadcasts signals that are used to calculate near-precise positioning data, such as longitude, latitude, altitude, time, geographic position, speed, and direction of travel data, associated with the test equipment. Thus, the field strengths as well as the positioning data are measured and recorded each time a reading from the test equipment is taken and are used to reconcile aerodynamic and elevation changes, such as changes caused by swaying and/or diving during gusts of wind, to provide reliable field strength data. The test equipment receives, processes, and/or transmits test propagation signals that may include the Industrial, Scientific, and Medical (ISM) Band frequencies, such as, 2.4-2.5 GHz, cellular telephone frequencies, such as, 806-960 MHz, 1710-1855 MHz, and 2500-2690 MHz, paging frequencies, digital processing frequencies, and any other frequency in the electromagnetic spectrum. Once the test survey is completed, the air/surface test system is quickly and easily moved to the next potential site, and therefore, allows wireless service providers to rapidly, inexpensively, and efficiently locate wireless communications equipment.