System and Method for Reducing Lock Acquisition Time of a Phase-Locked Loop

A wireless communication element, comprising:

• a receive path configured to receive a first wireless communication signal and convert the first wireless communication signal into a first digital signal based at least on an oscillator signal;
• and
• a transmit path configured to convert a second digital signal into a second wireless communication signal based at least on the oscillator signal and transmit the second wireless communication signal;
• and
• an oscillator configured to output the oscillator signal to at least one of the receive path and the transmit path, the oscillator comprising a phase-locked loop configured to synchronize an output signal at its output to an input reference signal received at its input, the phase-locked loop comprising:
• a voltage controlled oscillator (VCO) configured to generate an output signal based on an input reference signal;
• a first charge pump communicatively coupled to a control input of the VCO and configured to generate, for a duration of time following occurrence of an event, a first control signal, the first control signal independent of the output signal, the first control signal for causing the output signal to have a first frequency based on a second frequency of the input reference signal;
• and
• a second charge pump communicatively coupled to the control input of the VCO and configured to generate, after the duration of time, a second control signal, the second control signal adjusted to lock the output signal with the input reference signal according to a phase difference between the output signal and the input reference signal such that the output signal is synchronized with the input reference signal.

A method for reducing lock acquisition time of a phase-locked loop comprising:

• generating an output signal of a voltage controlled oscillator (VCO) associated with a phase-locked loop based on an input reference signal;
• generating a first control signal of the VCO for a duration of time following occurrence of an event, the first control signal independent of the output signal, the first control signal for causing the output signal to have a first frequency based on a second frequency of the input reference signal;
• and
• disabling a second control signal of the VCO for the duration of time, the second control signal is adjustable to lock the output signal with the input reference signal according to a phase difference between the output signal and the input reference signal such that the output signal is synchronized with the input reference signal.