Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to using an external memory for both a wireless wide area network (WWAN) and a wireless local area network (WLAN) for WLAN power savings. An exemplary method includes obtaining messages (e.g., paging messages) via a receiver; reading, during a first wakeup period in which the apparatus is to monitor for messages in a first wireless local area network (WLAN) while the receiver is powered on, state information for the first WLAN from a shared memory also used to store state information for a wireless wide area network (WWAN), and using the state information to configure the apparatus for communicating in the first WLAN.

Abstract: Various embodiments in the disclosure provide methods implemented by a processor executing on a mobile communication device to dynamically determining whether the power saved by powering down the RF chain between the end of the last reception activities and the beginning of the next reception activities will exceed the power expended to reinitialize the RF chain's components and registers for the next reception activities. Based on this determination, the device processor may configure the RF chain either to power down fully, as in conventional implementations, or to enter a low-power mode in which power is maintained to the power rails supplying the memory registers storing RF communication data, thereby avoiding the power surge of restarting the registers and part of the power drain associated with writing the communication data back into the registers. In some embodiments, the mobile communication device may be a multi-SIM device.

Abstract: A method for interference reduction is described. A sampling frequency is selected for a digital-to-analog converter (DAC) so that images within a DAC output signal do not interfere with one or more receivers. A sample rate is adjusted of an input signal that is provided to the DAC to match the sampling frequency for the DAC.

Abstract: A method for interference reduction is described. A sampling frequency is selected for a digital-to-analog converter (DAC) so that images within a DAC output signal do not interfere with one or more receivers. A sample rate is adjusted of an input signal that is provided to the DAC to match the sampling frequency for the DAC.