Methods and apparatus for automatic frequency control in wireless
receivers configured to simultaneously receive multiple carrier signals
at distinct radio frequencies are disclosed. An exemplary wireless device
comprises at least first and second radio front-end circuits configured
to receive first and second wireless communication signals transmitted
via first and second radio-frequency carriers at distinct first and
second radio frequencies, respectively, a control processor configured to
designate a master carrier signal and a slave carrier signal from among
the received wireless communication signals, and a frequency error
estimation circuit configured to estimate a first receiver frequency
error using the received master carrier signal. The control processor is
further configured to calculate a second receiver frequency error from
the first receiver frequency error, for use in compensating one or more
receiver processes performed on the slave carrier signal.