Patent ID: 8792582

Claim:
A mobile wireless communications device comprising: a baseband input configured to receive a baseband signal; a transmitter coupled to said baseband input and configured to generate a transmit signal based upon the baseband signal, the transmit signal having an initial transmit impairment; an auxiliary receiver coupled to said transmitter and configured to generate a receive signal having a receive impairment therein resulting from the initial transmit impairment; a controller coupled to said baseband input and said auxiliary receiver, said controller configured to determine a power of the baseband signal by integrating a product of the receive signal and a complex conjugate of the baseband signal, determine a power of the receive signal by integrating a product of the baseband signal and the receive signal, determine the initial transmit impairment based upon the power of the baseband signal and the power of the receive signal, and generate a transmit impairment compensation signal based upon the initial transmit impairment.