Abstract: A switched mode power supply includes a first switch, a second switch, an inductor, an output capacitor, and a driving circuit for driving the first switch and the second switch. The driving circuit is electrically coupled to a node between the first and second switches.

Abstract: The method includes receiving a signal in a multiple carrier mobile communication system, the signal including at least two reference symbols of different types, determining a first channel estimate at a symbol position of a first reference symbol of a first type, determining a second channel estimate at a symbol position of a second reference symbol of a second type, and determining a quantity being a function of a cross-correlation between the first and second channel estimate.

Abstract: The switched-mode power supply includes a first switch connected to an input terminal for receiving an input voltage, a second switch, a first node between the first switch and the second switch. The switched-mode power supply further includes a third switch connected to the input terminal, a fourth switch, and a second node between the third switch and the fourth switch. A first inductor is connected between the first node and an output terminal, a second inductor is connected between the second node and the output terminal, at least one third inductor is connected between the first node and the second node, and a capacitor is connected to the output terminal.

Abstract: A Channel Quality Indicator table for wireless multiple input multiple output (MIMO) networks is disclosed. In one embodiment, a method of generating a table for channel quality indicator (CQI) for an open loop MIMO transmission includes calculating performance of a link between a transmitter and a user end unit for each MIMO transmission mode over a range of average signal-to-noise ratio, and selecting the MIMO transmission mode that maximizes performance for each subset of the range of average signal-to-noise ratio. The method further includes storing the selected MIMO transmission mode and the corresponding subset of the range of average signal-to-noise ratio in a CQI table, the CQI table being stored in an user end unit and a base transceiver station of the open loop MIMO network.

Abstract: A mobile communications radio receiver for multiple radio network operation includes an RF unit for generating a first down-converted signal from a radio signal received from a first radio network and a second down-converted signal from a radio signal received from a second radio network. Further, it includes a first receiver comprising a paging indicator channel demodulator for demodulating a paging indicator channel of the first radio network based on the first down-converted signal, and a second receiver including a pilot channel demodulator for demodulating a pilot channel of the second radio network based on the second down-converted signal. A first data connection is configured to couple paging information contained in the second down-converted signal to an input of the paging indicator channel demodulator of the first receiver.

Abstract: Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.

Abstract: A method for communication setup including transmitting a first message including an indication of a list with a plurality of list elements, wherein each list element specifies a communication service or a communication application computer program; receiving the first message; selecting at least one of the list elements; and transmitting a second message comprising an indication specifying which list element has been selected.

Abstract: One embodiment of the present invention relates to a phase alignment system including a plurality of samplers, a clock distributor, a phase detector and a phase alignment control. The samplers are configured to receive an incoming signal and a phase adjusted clock signal and to provide samples according to the incoming signal. The clock distributor receives a clock adjustment signal and generates the phase adjusted clock signal, which triggers sampling of the incoming signal. The clock adjustment signal indicates a direction of phase adjustment and can include an amount of phase adjustment. The phase detector receives the samples and provides extended phase alignment commands derived from the samples. The phase alignment control receives the extended phase alignment commands and provides the clock adjustment signal to the clock distributor.

Abstract: A device such as a wafer-level package (WLP) device is proposed in which a dielectric layer is disposed between a surface of a semiconductor device and a surface of a redistribution layer (RDL). The dielectric layer may have at least one interconnect extending through the dielectric layer. The dielectric layer may have a coefficient of thermal expansion (CTE) value in a direction perpendicular to the surface of the semiconductor device that is less than a threshold value, and a Young's modulus that is greater than another threshold value.

Abstract: A divider for providing an output signal having an output frequency by dividing a reference frequency of a reference signal by a divider value is disclosed. The divider includes at least a first divider element configured to provide a first divider output signal having a first divider output signal frequency which is half of the reference frequency and a last divider element configured to provide a last divider output signal having a last divider output signal frequency which half of the preceding divider output signal frequency. Furthermore, the divider comprises an output signal provider for providing the output signal.

Abstract: A current-to-voltage converter for providing a voltage signal based on a current signal has a first active stage having an input and an output. The first active stage is configured to receive the current signal at its input and provide the voltage signal at its output. In addition, the current-to-voltage converter has a second active stage that is coupled between the output of the first active stage and the input of the first active stage. The second active stage is configured to provide the input of the first active stage with a feedback signal that frequency-selectively counteracts amplification, by the first active stage, of signal components of a current signal applied to the input of the first active stage that have a frequency outside of a prescribed useful frequency band.

Abstract: One embodiment of the present disclosure relates to a circuit. The circuit includes a digital to analog converter (DAC) configured to convert a time-varying, multi-bit digital value to a corresponding time-varying output current. The circuit also includes a mixer module downstream of the DAC and comprising a plurality of mixers. A control block is configured to selectively steer output current from the DAC to different mixers of the mixer module. Other techniques are also described.

Abstract: The method includes receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix including a predetermined pattern of pilot symbols, and determining first channel estimates at pilot symbol positions of the pilot symbols in the symbol-carrier matrix. The method further includes correcting the first channel estimates at the pilot symbol positions using Bayesian estimation, and determining second channel estimates at symbol positions other than the pilot symbol positions using interpolation based on the correct first channel estimates.

Abstract: A method, system, and apparatus is provided for interference calibration. A second mobile terminal may be configured to send timing information to a network interface in an uplink channel of a second communication system. The network interface may be configured to communicate with a first mobile terminal in a downlink channel in a first communication system; estimate the uplink channel using the timing information to form a channel estimation; and adjust the downlink channel to the first mobile terminal using the channel estimation.

Abstract: According to an aspect of this disclosure, a communication network device is provided comprising a receiver configured to receive a request that communication resources, that have been free for allocation by a communication network should not be allocated by the communication network; a determiner configured to determine a set of communication devices for which the communication resources have been free for allocation and which should not allocate the communication resources; and a controller configured to cause that the communication resources are not allocated by the communication devices of the determined set.

Abstract: In an aspect of this disclosure, a device for synchronizing a communication end device with a base station may be provided. The device may include: a primary synchronization determiner configured to determine a first synchronization parameter; and a secondary synchronization signal generator configured to simultaneously generate a plurality of bits of a secondary synchronization signal based on the first synchronization parameter.

Abstract: A semiconductor device includes a substrate having a top surface. A semiconductor circuit defines a circuit area on the top surface of the substrate. An interconnect is spaced apart from the circuit area and extends from the top surface into the substrate. The interconnect includes a sidewall formed of an electrically insulating material. An opening is provided in the sidewall.

Abstract: According to an aspect of this disclosure, a radio communication device is provided including a first transceiver configured to transmit and receive signals in accordance with a Cellular Wide Area radio communication technology; a second transceiver configured to transmit and receive signals in accordance with a Short Range radio communication technology or a Metropolitan Area System radio communication technology, the second transceiver comprising a filter having a filter characteristic; a first processor configured to control the first transceiver to transmit signals during a first transmitting period, to determine as to whether a scheduled uplink transmission fulfills a predefined criterion taking into account at least one of the following: at least a part of the filter characteristic of the filter of the second transceiver; a transmission power used for the uplink transmission; and a channel information indicating the physical channel used for the uplink transmission; and a second processor configured to

Abstract: A multi-standard transceiver includes a first subunit configured to perform signal processing according to a first communication standard and a second subunit configured to perform signal processing according to a second communication standard. Furthermore, the multi-standard transceiver includes an interference cancellation unit configured to drive an estimated interference signal from a first signal generated by the first subunit by performing the signal processing according to the first communication standard, and perform interference cancellation on a second signal generated by the second subunit by performing the signal processing according to the second communication standard based on the estimated interference signal.

Abstract: Some embodiments of the present disclosure relate to a feedback receiver comprising a threshold comparator configured to determine if the amplitude of a baseband signal is within a selection corridor (e.g., defined by an upper and lower threshold value). If the amplitude is within the selection corridor, a feedback receiver is configured to accumulate RF signal samples (e.g., amplitude and phase samples) over a time period. The accumulated RF signal samples, which correspond to substantially constant baseband amplitude values, are then averaged. The calculated averages are utilized for impedance measurements used tune an antenna tuner to limit impedance mismatch. By limiting RF amplitude and phase sample collection to associated baseband signals having an amplitude falling within the selection corridor, substantially equal average amplitudes and phases can be achieved over a relatively short measurement period (i.e., without the need for long measurement period).