Interference and cooperat ion in multi - source wireless networks

A phase locked loop includes a voltage-controlled oscillator, and a phase and frequency detector for comprising an input signal pulse wave with a pulse wave from the voltage-controlled oscillator, and for providing a frequency control voltage to the voltage-controlled oscillator. When the pulses overlap, a pulse comparison circuit in the phase and frequency detector produces a frequency "up" signal or a frequency "down" signal proportional to the correction necessary. When the pulses do not overlap, the pulse comparison circuit produces a "non-overlap" signal which effects a rapid frequency correction by causing a current pump in the phase and frequency detector to increase its output to a fixed maximum value, and by causing a loop filter to increase its bandwidth to a fixed maximum value.