Abstract: Systems and methods are directed to configuring antenna systems. An antenna system may be coupled to a first communication unit and may be responsive to another communication unit. The first communication unit may alter its antenna system to accommodate various attributes of both units. The first communication unit may have a plurality of antennae which may be configured to be driven actively, deactivated completely, or tuned and driven in a parasitic mode. By configuring the antenna system, the range of the antenna system may be increased, the power to drive the antenna system may be decreased, and other various attributes of the communication system may be accommodated.

Abstract: Examples herein disclose apparatus and systems for hybrid vector based polar modulator schemes that may use a series of polar modulators to create a system of vector modulators. The resulting polar response may be de-composed into the sum of the polar modulators. This approach allows accurate phase modulation in two such links without the need for high resolution AM part to cover the IQ plane of a QAM modulator.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive an otw signal that is associated with low-path pass information and transmission data. The apparatus may apply a cost function and an update function to the otw signal prior to sending the otw signal to an oscillator. The apparatus may determine a correction factor for use in estimating a gain of the oscillator based at least in part on an output of the update function.

Abstract: The apparatus for wireless communication receives, from a power amplifier of a second module of a second apparatus, a signal including a RF signal for transmission by a first module of a first apparatus and a control signal modulated with the RF signal. The apparatus for wireless communication filters the control signal from the RF signal within the received signal. The apparatus for wireless communication modifies at least one component within the apparatus based on the filtered control signal. The apparatus for wireless communication transmits the RF signal, the transmission of the RF signal being based on the at least one component modified based on the received control signal.

Abstract: Systems and methods are directed to configuring antenna systems. An antenna system may be coupled to a first communication unit and may be responsive to another communication unit. The first communication unit may alter its antenna system to accommodate various attributes of both units. The first communication unit may have a plurality of antennae which may be configured to be driven actively, deactivated completely, or tuned and driven in a parasitic mode. By configuring the antenna system, the range of the antenna system may be increased, the power to drive the antenna system may be decreased, and other various attributes of the communication system may be accommodated.

Abstract: Methods, systems, and devices for wireless communications are described. The method may include identifying phase information generated from modulation information, mapping the phase information by mapping a second phase point located in a second quadrant to a first phase point of a first quadrant, where the first phase point may be associated with a phase trajectory of the phase information, synthesizing the mapped phase information associated with the phase trajectory based on mapping the phase information, rotating the phase trajectory based on a phase-plane rotation value associated with mapping the phase information, and generating a modulated signal associated with a carrier frequency based on mapping the phase information and rotating the phase trajectory.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive an otw signal that is associated with low-path pass information and transmission data. The apparatus may apply a cost function and an update function to the otw signal prior to sending the otw signal to an oscillator. The apparatus may determine a correction factor for use in estimating a gain of the oscillator based at least in part on an output of the update function.

Abstract: Examples herein disclose apparatus and systems for hybrid vector based polar modulator schemes that may use a series of polar modulators to create a system of vector modulators. The resulting polar response may be de-composed into the sum of the polar modulators. This approach allows accurate phase modulation in two such links without the need for high resolution AM part to cover the IQ plane of a QAM modulator.

Abstract: A method for performing near-field communication (NFC)-type operations in the far-field region using a repurposed antenna is described. The method includes determining whether to perform NFC-type operations in a near-field mode or a far-field mode. The method further includes performing NFC-type operations outside a near-field region using a repurposed antenna when in the far-field mode.

Abstract: A method of calibrating an All-Digital Phase Locked Loop (ADPLL) includes obtaining a model of the ADPLL and applying an input signal to both the ADPLL and to the model. The ADPLL generates an actual output of the ADPLL, while the model generates a model output. An error between the actual output of the ADPLL and the model output is then sensed. The method also includes generating a calibration value based on the error between the actual output of the ADPLL and the model output, and adjusting a feedforward gain of the ADPLL based on the calibration value.

Abstract: An example phase-locked loop (PLL) includes a digital filter, an oscillator, and a time-to-digital converter (TDC). The digital filter is configured to sample at a discrete time that is responsive to a reference clock signal received at the digital filter. The oscillator is coupled to the digital filter and configured to generate an output signal of the PLL. The TDC is coupled to the oscillator to determine a phase difference between the output signal and the reference clock signal. The TDC also provides a time signal to the digital filter that is based on the phase difference and is representative of an instantaneous rate of operation of the PLL. The digital filter is further configured to adjust a response characteristic of the digital filter according to the time signal.

Abstract: Disclosed are methods and apparatuses for reducing fractional spurs in an All-Digital Phase Lock Loop (ADPLL). An exemplary apparatus includes a crystal oscillator configured to generate a first frequency reference signal, a non-integer divider coupled to the crystal oscillator and configured to divide the first frequency reference signal by a non-integer variable to generate a second frequency reference signal, and a multiplexor coupled to the non-integer divider and the crystal oscillator and configured to output the first frequency reference signal or the second frequency reference signal to the ADPLL, wherein the multiplexor is configured to output the second frequency reference signal based on the ADPLL being tuned to a low fractionality channel.

Abstract: A method for performing near-field communication (NFC)-type operations in the far-field region using a repurposed antenna is described. The method includes determining whether to perform NFC-type operations in a near-field mode or a far-field mode. The method further includes performing NFC-type operations outside a near-field region using a repurposed antenna when in the far-field mode.