Patent ID: 8649736

Claim:
A test method for a transmitter-receiver circuit including an antenna, which is connected to a processing unit arranged for receiving signals and converting the frequency of said signals, said transmitter-receiver circuit also including a power amplifier, which is connected to said antenna and arranged for sending transmission signals, said transmitter-receiver circuit further including a test module, whose the operation is independent on the emitting and receiving functionalities and being liable to test the emission and reception of said transmitter-receiver circuit, the method comprises the following steps: a) electrically connecting the test module to the processing unit of the transmitter-receiver circuit; b) testing the operation of the transmitter-receiver circuit in a first operating mode, which can be either a data transmission mode or a data reception mode, using the test module; c) testing the operation of the transmitter-receiver circuit in a second operating mode, which can be either a data reception mode or a data transmission mode, using the test module; and d) electrically disconnecting the test module from the processing unit.