Method and system for processing imperfections of a radiofrequency transmission chain and communication device incorporating such a transmission channel.

摘要

The method involves delivering a reference signal (tn) with reference frequency to a transmission chain in upstream of imperfection origin elements. A resulting reference signal (SRF) is obtained in downstream of a frequency shifting stage (ETR1). Approximate values for compensation parameters (Ca, Ci, Cp, Cq) are directly obtained from the resulting reference signal. The approximate values are provided to the transmission chain in a compensation phase. An independent claim is also included for a system for processing imperfections e.g. mismatch of phase quadrature paths or frequency shifting signal leakage, of a radiofrequency transmission chain.