Abstract: A method includes estimating a temperature change to an integrated circuit, which is associated with a pending transmission from the integrated circuit. The method includes, based on the estimated temperature change, regulating at least one parameter that is associated with the pending transmission to maintain a temperature of the integrated circuit below a temperature threshold.

Abstract: Operating a vehicle while texting, using applications or using a mobile device has been shown to be very dangerous and increase the likelihood of accidents. An exemplary embodiment relates to a method, techniques and a system that can prohibit the use of a mobile device by the driver while driving. An exemplary embodiment relates to the fields of communications and control and combines the use of social media and smartphones to create methods to prohibit the use of specific communications on the mobile device including but not limited to texting, etc.

Abstract: A method and electronic circuit for changing the gain of a radio frequency signal. The apparatus is an electronic circuit comprising one or more variable gain electronic elements, and one or more adjustable phase shifting elements. The method comprises the steps of receiving a radio frequency signal, varying the gain of the variable gain electronic element while the variable gain electronic element changes the amplitude of the radio frequency signal, and adjusting an adjustable phase shifting element to generate a reverse phase shift in the radio frequency signal in response to the associated phase shift from the step of varying the gain.

Abstract: A receiver comprises a passive gain stage having an input to receive an in-going radio frequency (RF) signal and a gain control signal to produce an adjusted in-going RF signal, a sliced LNA stage comprising a plurality of LNAs coupled to receive the in-going RF signal. Each LNA includes an adjustable source degeneration circuit for receiving a plurality of gain selection and control signals and an output port to produce an amplified in-going RF signal. A mixer is coupled to receive at least one of the amplified in-going RF signals produced by the sliced LNA stage and is configured to produce a converted signal at another frequency. A PGA is coupled to receive the down-converted signal and produces an amplified in-going signal.

Abstract: The technology disclosed herein enhances the operation of a Long Term Evolution (LTE) access node to dynamically modify power headroom (PHR) prohibit timers. In one implementation, a method of operating a LTE access node includes communicating first signals with wireless communication devices in device to device (D2D) communication groups using a first PHR timer. The method further provides identifying a signaling load for the wireless communication devices, and determining if the signaling load meets signaling criteria. The method also includes, if the signaling load meets the signaling criteria, identifying a second PHR prohibit timer, and providing the wireless communication devices with the second PHR prohibit timer.

Abstract: Disclosed is an apparatus for converting a frequency. The apparatus includes: an oscillator configured to generate a first oscillation signal having a first oscillation frequency which is obtained by subtracting an input frequency from a carrier frequency of any one carrier signal among a first to a n-th carrier signals (n is a natural number), and generate a second oscillation signal having a second oscillation frequency which is obtained by adding the input frequency to a carrier frequency of any one carrier signal among a (n+1)-th to a 2n-th carrier signals; and a mixer configured to mix and output the first oscillation signal or the second oscillation signal with an input signal having the input frequency.

Abstract: A computer-implemented method includes receiving a request from a user to locate a radio station similar to a radio station currently providing content in a predefined genre to a radio receiver; accessing stored genre information compiled from a radio station scan to locate a second radio station providing content in the genre; and tuning the radio receiver to the second radio station.

Abstract: A signal demodulation apparatus includes: a clock generation device arranged to generate a clock signal according to an inputting modulation signal; and a demodulation device arranged to demodulate the inputting modulation signal to generate a demodulation signal according to the clock signal; wherein a signal edge of the clock signal substantially aligns to a turning point of the inputting modulation signal.

Abstract: Improved signal path in radio-frequency (RF) module having laminate substrate. In some embodiments, a laminate substrate for mounting RF components can include N conductor pads positioned at different layers of the laminate substrate. Such conductor pads can include an input pad, an output pad, and at least one intermediate pad between the input and output pads. The laminate substrate can further include a connection feature formed between each neighboring pair among the N conducting pads to provide a signal path between the input pad and the output pad. First and second connection features associated with each of the at least one intermediate pad can be positioned near opposite ends of the intermediate pad to thereby reduce parasitic effects associated with the N conductor pads. Examples of methods and devices related to such laminate substrate are disclosed.

Abstract: A surface acoustic wave (SAW) filter that receives an aggregate circuit and outputs two or more sub-signals on outputs each of a different frequency band. The sub-signals are amplified by low noise amplifiers and, in one implementation, the amplified sub-signals can be summed. The outputs are connected via a switched passive network so that portions of the sub-signals on the outputs that are not in the selected frequency band are at least partially terminated.

Abstract: A spectral harvesting system has one or more sensor modules and a processor. The sensor modules autonomously scan RF signals over a range of frequencies in a region of interest. The processor receives observed RF signals from the sensor modules, and performs signal analysis on the observed RF signals received. The signal analysis includes converting the observed RF signals into a frequency signal in a frequency domain, temporally averaging the frequency signal to provide a temporally averaged frequency signal, performing a coarse estimate of the spectral noise floor of the observed RF signals based on the temporally averaged frequency signal using an opening technique that performs an erosion process followed by a dilation process on the temporally averaged frequency signal, and determining an a-posteriori signal presence probability of a signal being present from an RF emitter in the region of interest based on the coarse estimate.

Abstract: Methods and apparatuses for activity indication are disclosed. In one example, an activity indicator apparatus includes a housing, a visual indicator visible on a housing surface, and a power source. The apparatus includes a wireless communications interface configured to receive a signal indicating an activity of a user device, and an activity indication application configured to indicate the activity at the visual indicator.

Abstract: Disclosed herein is a technique for enabling Subscriber Identity Module (SIM) toolkit commands to be properly routed within a mobile device that includes an embedded Universal Integrated Circuit Card (eUICC) configured to manage two or more electronic SIMs (eSIMs). Specifically, the technique involves a baseband component of the mobile device and the eUICC initially exchanging information about their eSIM capabilities to identify whether multiple eSIMs are active within the eUICC. During this exchange of information, the eUICC can generate a list of unique identifiers of the active eSIMs that are managed by the eUICC and provide the list of unique identifiers to the baseband component. In turn, the baseband component can update a configuration to manage the list of unique identifiers and use the list of unique identifiers to properly route SIM toolkit commands to the appropriate eSIM within the eUICC.

Abstract: One embodiment of the present invention provides a system for controlling operations of a power amplifier in a wireless transmitter. During operation, the system receives a baseband signal to be transmitted, and dynamically switches an operation mode of the power amplifier between a high power back-off mode having a first power back-off factor and a normal mode having a second power back-off factor based on a level of the baseband signal.

Abstract: A multi-channel communication terminal has at least two communication channels including a first communication channel and a second communication channel. The first communication channel is established by a first service provider system, and is configured to acquire subscriber identity information assigned by a remote server and provide service sharing. The second communication channel is established by a second service provider system according to the subscriber identity information, and is configured to acquire a service provided by the second service provider system. A subscriber acquires appropriate subscriber identity information according to actual requirements, and communicates with a corresponding service provider system according to the subscriber identity information to acquire a service provided by the service provider system, thereby acquiring an international, any-service provider, any-technology and mode, or any-service network access service.

Abstract: A voltage reference circuit implemented in GaAs to provide an output voltage component proportional to absolute temperature is described herein. The various embodiments of the voltage reference circuit described here can be used to provide precision voltage to bias a RF device. The voltage reference circuit can be provided on the same die as the RF device. The various embodiments described herein can be implemented in a GaAs material system.

Abstract: A wireless communication system includes: a switching capacitor; a multi-way switch, having at least a first voltage input port, a second voltage input port, and an intermediate voltage input port, coupled to the switching capacitor; and a CORDIC processor, coupled to the multi-way switch, configured to select the first voltage input port, the second voltage input port, or the intermediate voltage input port.

Abstract: A method, communication apparatus, and computer program product is provided for mitigating interference experienced by a wireless communication device, WCD (102). The interference is caused by signals transmitted by an interfering node (106). The communication apparatus determines information related to the interfering node (106). The communication apparatus selects, based at least in part on the determined information related to the interfering node (106), a WCD receiver configuration from a set of available WCD receiver configurations. The set of available WCD receiver configurations comprises i) a first WCD receiver configuration that mitigates only interference caused by physical signals transmitted by the interfering node (106) and ii) a second WCD receiver configuration that mitigates only interference caused by physical channels transmitted by the interfering node (106).

Abstract: System-wide uplink band gain control in a distributed antenna system (DAS) based on per-band gain control of remote uplink paths in remote units is disclosed. In one embodiment, for each uplink band in the DAS, a gain control system receives remote uplink band power measurements for each remote uplink path for the uplink band. Based on these power measurements, the gain control system determines if the uplink gain of all of the remote uplink paths of the plurality of uplink paths of the uplink band should be adjusted. If the uplink gain of the remote uplink paths of the uplink band should be adjusted, the gain control system directs a remote uplink gain control circuit for each remote uplink path of the uplink band to adjust the uplink gain by a defined remote uplink band gain level.

Abstract: Methods and systems for beam forming include measuring channel state information for a set of different codebook entries. An angle of arrival (AoA) distribution is determined with a processor using compressive testing based on the measured channel state information. A set of phase shift values is determined based on the determined AoA to perform phased array beamforming.