Abstract: Techniques and apparatus for configurable radio frequency (RF) exposure compliance based on region. An example method of wireless communication by a user equipment (UE) generally includes identifying a region in which the UE is located, selecting at least one of a mode or one or more parameters for RF exposure compliance based on the identified region, and transmitting a signal at a transmission power level based at least in part on the at least one of the selected mode or the selected one or more parameters.

Abstract: Certain aspects of the present disclosure provide techniques for exception-robust time-averaged radio frequency (RF) exposure compliance continuity. A method that may be performed by a user equipment (UE) generally includes transmitting a first signal at a first transmission power based on time-averaged RF exposure measurements over a time window and storing RF exposure information associated with the time window. The method may also include detecting that an exception event associated with the UE occurred and transmitting a second signal at a second transmission power based at least in part on the stored RF exposure information in response to the detection of the event.

Abstract: Certain aspects of the present disclosure provide techniques for operating a wireless communication device pursuant to radio frequency (RF) exposure with antenna grouping. An example method of wireless communication by a user equipment generally includes accessing a stored backoff factor associated with an antenna group among a plurality of antenna groups. The method also includes transmitting, from at least one transmit antenna in the antenna group, a signal at a transmission power level based on the backoff factor in compliance with an RF exposure requirement.

Abstract: Certain aspects of the present disclosure provide techniques for radio frequency (RF) exposure with antenna grouping. An example method for grouping antennas for RF exposure compliance by a processing system generally includes determining RF exposure distributions per transmit antenna configuration for a plurality of transmit antennas and assigning the plurality of transmit antennas to a plurality of antenna groups based on the RF exposure distributions.

Abstract: Auto-recovery from RF signal acquisition failure may be provided in a portable computing device. A field-calculated frequency-temperature (“FT”) curve is used to apply temperature compensation to a crystal oscillator associated with RF transceiver circuity of the device. In response to acquisition failure, it may be determined whether a deviation between the field-calculated FT curve and a factory-set FT curve exceeds threshold criteria. In response to acquisition success, the field-calculated FT curve may be refined based on frequency error information. However, in response to acquisition failure and a determination that the deviation exceeds the threshold criteria, information defining the field-calculated FT curve may be replaced with information defining the factory-set FT curve.

Abstract: Various examples include methods for assisting Global Positioning System (GPS) applications using a Long Term Evolution (LTE) subscription on a wireless communication device. Various example methods may include determining whether positioning information can be obtained from a first network associated with the LTE subscription, obtaining the positioning information from the first network through the LTE subscription in response to determining that the positioning information can be obtained from the first network, translating the positioning information into a format recognizable to a GPS application executing on the wireless communication device, and providing the positioning information to the GPS application.

Abstract: A system and a method for docking a wireless communications device are provided. The system includes a docking station on which a wireless communications device is docked. A display on the docked wireless communications device provides the display for the docking system.

Abstract: A system and a method are provided for reducing the effects of spurious frequencies in a wireless communications device. The system comprises a processor having a reference frequency input and a clock having an output connected to the processor input. The clock supplies a clock frequency, or reference frequency, to the processor. The reference frequency is the frequency at which the processor operates. The clock also has an input for selecting a reference frequency to provide to the processor. The system also includes a transceiver having a plurality of selectable communications passbands. If the wireless communications device is a telephone, for example, the transceiver frequency (passband) may change as a function of the mode in which the phone is operating (AMPS, PCS, GSM, CDMA, or W-CDMA). In response to changing operating modes (transceiver passband), the clock frequency is adjusted.

Abstract: A method and apparatus for interfacing an electronic device and an accessory is disclosed. In one embodiment the accessory comprises a communication device. To achieve desired operation of the accessory with the communication device the accessory includes memory configured to store control data or other interface data. Storing the control data in the accessory insures that the communication device has access to the control data tailored to the accessory hardware. Storing the control data on the accessory also creates independence between the accessory an the electronic device such that accessory may be introduced to market after the communication device is purchased. In one embodiment the control data is downloaded to the communication device for use by the communication device. The communication device may permanently store the control data such that the download process may be avoided during subsequent use of the accessory with the communication device.

Abstract: A method and apparatus for interfacing an electronic device and an accessory is disclosed. In one embodiment the accessory comprises a communication device. To achieve desired operation of the accessory with the communication device the accessory includes memory configured to store control data or other interface data. Storing the control data in the accessory insures that the communication device has access to the control data tailored to the accessory hardware. Storing the control data on the accessory also creates independence between the accessory an the electronic device such that accessory may be introduced to market after the communication device is purchased. In one embodiment the control data is downloaded to the communication device for use by the communication device. The communication device may permanently store the control data such that the download process may be avoided during subsequent use of the accessory with the communication device.

Abstract: A system and a method are provided for reducing the effects of spurious frequencies in a wireless communications device. The system comprises a processor having a reference frequency input and a clock having an output connected to the processor input. The clock supplies a clock frequency, or reference frequency, to the processor. The reference frequency is the frequency at which the processor operates. The clock also has an input for selecting a reference frequency to provide to the processor. The system also includes a transceiver having a plurality of selectable communications passbands. If the wireless communications device is a telephone, for example, the transceiver frequency (passband) may change as a function of the mode in which the phone is operating (AMPS, PCS, GSM, CDMA, or W-CDMA). In response to changing operating modes (transceiver passband), the clock frequency is adjusted.

Abstract: A system and a method are provided for reducing the effects of spurious frequencies in a wireless communications device. The system comprises a processor having a reference frequency input and a clock having an output connected to the processor input. The clock supplies a clock frequency, or reference frequency, to the processor. The reference frequency is the frequency at which the processor operates. The clock also has an input for selecting a reference frequency to provide to the processor. The system also includes a transceiver having a plurality of selectable communications passbands. If the wireless communications device is a telephone, for example, the transceiver frequency (passband) may change as a function of the mode in which the phone is operating (AMPS, PCS, GSM, CDMA, or W-CDMA). In response to changing operating modes (transceiver passband), the clock frequency is adjusted.

Abstract: A method and apparatus for interfacing an electronic device and an accessory is disclosed. In one embodiment the accessory comprises a communication device. To achieve desired operation of the accessory with the communication device the accessory includes memory configured to store control data or other interface data. Storing the control data in the accessory insures that the communication device has access to the control data tailored to the accessory hardware. Storing the control data on the accessory also creates independence between the accessory an the electronic device such that accessory may be introduced to market after the communication device is purchased. In one embodiment the control data is downloaded to the communication device for use by the communication device. The communication device may permanently store the control data such that the download process may be avoided during subsequent use of the accessory with the communication device.

Abstract: A method and apparatus for interfacing an electronic device and an accessory is disclosed. In one embodiment the accessory comprises a communication device. To achieve desired operation of the accessory with the communication device the accessory includes memory configured to store control data or other interface data. Storing the control data in the accessory insures that the communication device has access to the control data tailored to the accessory hardware. Storing the control data on the accessory also creates independence between the accessory an the electronic device such that accessory may be introduced to market after the communication device is purchased. In one embodiment the control data is downloaded to the communication device for use by the communication device. The communication device may permanently store the control data such that the download process may be avoided during subsequent use of the accessory with the communication device.

Abstract: A system and a method are provided for reducing the effects of spurious frequencies in a wireless communications device. The system comprises a processor having a reference frequency input and a clock having an output connected to the processor input. The clock supplies a clock frequency, or reference frequency, to the processor. The reference frequency is the frequency at which the processor operates. The clock also has an input for selecting a reference frequency to provide to the processor. The system also includes a transceiver having a plurality of selectable communications passbands. If the wireless communications device is a telephone, for example, the transceiver frequency (passband) may change as a function of the mode in which the phone is operating (AMPS, PCS, GSM, CDMA, or W-CDMA). In response to changing operating modes (transceiver passband), the clock frequency is adjusted.

Abstract: A method and apparatus for rapid charging a battery that compensates for sub-optimal interconnection between the charger and the battery. In the present invention the effect of an imperfect interconnection between a charger and a battery is empirically characterized. The elements of the imperfect interconnection include any resistive losses between the battery charger output and the battery cells. The battery charger incorporates a control loop that measures the current flowing into the battery and the voltage at the interconnect terminals. The control loop then calculates the voltage at the actual batteries based on the measured values and the predetermined interconnect characterization. The control loop uses the calculation to adjust the output of the charger to achieve the optimal voltage at the batteries. The result of optimizing the charging voltage is a significant charge time reduction.