Mobile radio terminal with a function to self-diagnose the performance, and corresponding method

摘要

A mobile terminal with a self performance diagnosis function and a method thereof are provided. The mobile terminal has an RF switch connected between an output end of a transmitter and an input end of a receiver, for switching on in a diagnosis mode and feeding an RF signal received from the transmitter to the receiver. In the diagnosis mode, a test signal is applied to the transmitter, and the transmitter is operated by setting transmit power to a predetermined level. The RF switch turns on and operates the receiver. The received power level of a baseband signal received from the receiver is measured and compared with a predetermined threshold. A diagnosis result is displayed based on the level difference between the measured power level and the threshold. Therefore, the mobile terminal can diagnose its hardware performance on its own.