Patent ID: 6952564

Claim:
A method of calibrating components in a transceiver that comprises a transmitter chain and a receiver chain which include a pre-determined number of frequency stages and means for frequency transposition between said frequency stages, the method comprising: successively establishing a sequence of signal connections between the frequency stages in the transmitter chain and the corresponding frequency stages in the receiver chain, thereby obtaining a sequence of signal paths from one baseband stage in the transmitter chain to a baseband stage in the receiver chain, wherein each signal path differs from the preceding signal paths by including one or more specific components that shall be calibrated and that are not included in any one of the preceding signal paths; transmitting pre-determined test signals over each of said signal paths; receiving response signals corresponding to the transmitted test signals; establishing whether or not the performance or performances of the specific components for each signal path is/are acceptable in relation to the test signals and the response signals; and adjusting the specific component or specific components so as to obtain an acceptable performance when it is established that said performance is unacceptable.