Transceiver device and method of processing signals

A transceiver device comprising:

• a transmit chain configured to transmit one or more transmit signals;
• a receive chain configured to receive one or more receive signals;
• and
• a processor configured to:
• identify a plurality of critical elements of a parameter vector based on one or more predefined criteria, wherein the parameter vector represents a relationship between an input vector signal and an output signal vector;
• identify a reduced parameter update vector having a plurality of elements, wherein the elements are selected according to a criterion related to the relationship between the input signal vector and the output signal vector;
• update the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has fewer elements than the parameter vector;
• and
• process at least one of the one or more transmit signals using the updated parameter vector.

A transceiver device comprising:

• a transmit chain configured to transmit one or more transmit signals;
• a receive chain configured to receive one or more receive signals;
• and
• a processor configured to:
• identify a plurality of critical elements of a parameter vector based on one or more predefined criteria, wherein the parameter vector describes a relationship between an input signal vector and an output signal vector;
• update the plurality of critical elements of the parameter vector using a reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector;
• generate an estimated leakage signal by applying the updated parameter vector to the one or more transmit signals;
• and
• utilize the estimated leakage signal to cancel a leakage signal from one or more of the receive signals.