Transmitting radio wave confirmation method, mobile station device and transmitting radio wave confirmation program in satellite communication system

Abstract

Provided is a transmission radio wave checking method for a satellite communication system provided with a portable station, wherein the portable station executes a transmission process of transmitting a test signal and a control signal with a first polarization at a designated transmit level to a communications satellite, a reception process of receiving the test signal and the control signal transmitted back from the communications satellite with a second polarization orthogonal to the first polarization, and a control process of starting the transmission of the test signal and the control signal with the first polarization at a transmit level lower than a predetermined value, and raising the transmit level to a predetermined value while checking whether or not the test signal and the control signal received back from the satellite conform to a predetermined condition. With this arrangement, a UAT can be completed by receiving and checking a UAT signal transmitted by the portable station and received back from the satellite, even in cases where a UAT cannot be performed with a satellite telecommunications carrier.

Dependencies are inferred from the claim text.