Abstract: A power savings method comprises delaying turning on the local oscillator of a mobile phone while the processor of the mobile phone sorts through a previously received neighbor list. While the local oscillator is settling at its operating frequency, the mobile phone receives signals from the neighbor list channels and measures their relative strength. Compensation factors are applied to correct for frequency errors arising from the fact that the local oscillator has not settled at its operating frequency. A method is further disclosed for generating the compensation factors for use in the power savings method.

Abstract: Methods and systems are provided for frequency generation suitable for use in wireless devices capable of operating at multiple frequencies. Such systems may change the loop gain of an automatic frequency control loop based on the operating frequency of the wireless device. Furthermore, such a frequency dependent loop gain may be carried out by the selection of subroutines with differing loop gains associated with the subroutines. Furthermore, the loop gain may also be temperature compensated based on the temperature of the wireless device and/or the operating frequency of the device.