Abstract: A device for decoding code symbols which are interfered with a distortion during a predetermined distortion time interval includes a reliability information generator to provide reliability information based on the code symbols and a decoder to decode the code symbols into code words. The decoder is configured to decode the code symbols based on weighted reliability information, wherein the weighted reliability information is generated from the reliability information by applying a first weight during times not coinciding with the distortion time interval, and by applying a second weight different from the first weight during times coinciding with the distortion time interval.

Abstract: A circuit arrangement is provided. The circuit arrangement may include: a processing circuit configured to receive a pre-processed signal at a first data rate during a first time period, the processing circuit further configured to perform a communications network search by processing the pre-processed signal at a first processing clock frequency during the first time period, and to perform the communications network search by processing the pre-processed signal at a second processing clock frequency during a second time period, wherein the second time period commences after the first time period, and wherein the second processing clock frequency is greater than the first processing clock frequency.

Abstract: A radio receiver includes an input terminal to receive a first radio signal, an equalizer, coupled to the input terminal, to equalize the first radio signal and to output an equalized signal and a first channel estimator, coupled to the input terminal and the equalizer, to estimate first channel parameters by using the first radio signal and a signal derived from the equalized signal. The radio receiver may contain a controller implementing a HARQ protocol and a HARQ buffer to store likelihood information based on the equalized signal. The radio receiver may contain a reconstruction unit to provide the signal derived from the equalized signal based on a content of the HARQ buffer.

Abstract: One embodiment of the present invention relates to a method for improving the power consumption of a transmission chain by varying the operating point of a power amplifier to optimize (e.g., reduce) the current that is consumed by the amplifier. The operating point is varied by changing the bias voltage(s) (e.g., supply voltage, quiescent voltage) of the amplifier to a predetermined value that is chosen based upon the effect that a given transmitted signal modulation scheme characteristic (e.g., channel bandwidth and/or number of subcarriers) has on the operating point of a power amplifier. For example, if the characteristics indicate a good power amplifier performance the linear output power capability of a power amplifier can be lowered, by changing the bias voltage(s) supplied to the power amplifier, to reduce the output power capability and current consumption of the power amplifier.

Abstract: According to an embodiments, a device may be provided. The device may include a data receiver configured to receive data in sets of consecutive packets from a data transmitter, wherein each set may include a first packet and at least one further packet. The device may further include a first packet reception determinator configured to determine whether the first packet of a set of consecutive packets is received by the data receiver. The device may further include a data sending determinator configured to determine whether the data transmitter sends the set of consecutive packets based on whether the first packet of the set of consecutive packets is received.

Abstract: A communication device is described comprising a transceiver, a determining circuit configured to determine whether the communication device may use radio resources, which are allocated to be used by a wireless bidirectional communication system in the geographical region in which the communication device is located, for radio data communication without participation by the wireless bidirectional communication system, and a controller configured to control the transceiver to carry out radio data communication using the radio resources if the communication device may use the radio resources.

Abstract: This disclosure relates to a compensating for nonlinearity resulting from a capacitance feedback in current cells of a single ended digital to analog circuit.

Abstract: Some embodiments relate to an electrostatic discharge (ESD) protection device. The ESD protection device includes a first electrical path extending between the first and second circuit nodes and including a trigger element. A second electrical path extends between the first and second circuit nodes. The second electrical path includes a shunt element. A switching element is configured to trigger current flow through the shunt element based on both a state of the trigger element and a state of the switching element.

Abstract: An antenna system includes a ground plane including at least one slot, a first antenna element coupled to a first portion of the ground plane, a second antenna element coupled to a second portion of the ground plane which is spaced apart from the first portion and a tuner configured to change the influence of the slot to a current flow through the ground plane from the first portion to the second portion.

Abstract: A transmission circuit includes a shift circuit, a second shift circuit, and a modulation circuit. The shift circuit is configured to select a shift amount according to shift parameters and to introduce the shift amount in a first direction into in phase and quadrature phase baseband signals. The second circuit is configured to selectively introduce the shift amount in a second direction into local oscillator signals. The modulation circuit is configured to modulate the shifted baseband signals onto the shifted local oscillator signals to generate a composite modulated output signal. Unwanted components of the output signal are shifted away from original or specified limits. Wanted components of the output signal are unshifted.

Abstract: A method, system, and computer program product for identifying network congestion in a communication system. A connection manager identifies a number of packet delay times of a plurality of data packets within the communication system; determines whether the at least one packet delay time meets a threshold; and responsive to the at least one packet delay time meeting the threshold, adjusts a congestion indicator.

Abstract: A radio communication device may be provided, including: a transceiver to exchange data with a base station; a mode determiner to determine whether to operate the radio communication device in a pre-determined mode, in which a first subset of frames of each multiframe in a plurality of multiframes is reserved for a first group of radio communication devices including the radio communication device for sending data to the base station and/or receiving data from the base station, and a second subset of frames of each multiframe in the plurality of multiframes is reserved for a second group of other radio communication devices for sending data to the base station and/or receiving data from the base station; and a measurement circuit to measure a reception quality of a pre-determined cell in the second subset if the mode determiner determines to operate the radio communication device in the pre-determined mode.

Abstract: A receiver for receiving RF-signals in a plurality of different communication bands, each communication band including a receive frequency range and a transmit frequency range includes a plurality of receiving ports, a plurality of input circuits, a first inductor and a second inductor. Each receiving port is configured to receive RF-signals in a receive frequency range of a communication band. Each input circuit is connected to an associated receiving port for processing RF-signals applied to the receiving port. The first inductor is connected to a first group of input circuits and the second inductor is connected to a second group of input circuits, wherein the first group of input circuits and the second group of input circuits are disjunct.

Abstract: An oscillator circuit for producing a frequency signal has a resonator element, an amplifier circuit and a coupling apparatus. The coupling apparatus connects the amplifier circuit to the resonator element for the duration of a switching-on process in the oscillator circuit.

Abstract: A method for searching for a radio cell is provided comprising determining, for each of a plurality of frequencies, a reception strength value indicating the reception strength within a first bandwidth around the frequency, wherein the first bandwidth is smaller than a second bandwidth with which a radio cell to be searched is operated; determining, based on the determined reception strength values, a spectral position for a radio cell at which a cell search is to be carried out; and carrying out a cell search at the determined spectral position.

Abstract: A power amplifier system includes a transistor stack and an upper portion. The upper portion includes an LC tank. The LC tank is configured to generate selected harmonics to mitigate voltage stress and facilitate amplifier efficiency. The transistor stack includes serial connected input transistors and upper transistors. The input transistors are configured to receive an input signal and the upper transistors are configured to provide an amplifier output signal. The LC tank is configured to provide the selected harmonics to at least gates of the upper transistors.

Abstract: This disclosure relates to low noise amplifiers (LNAs) and more particularly to LNAs integrated on integrated circuit (IC) chips along with radio frequency (RF) amplifiers. In one implementation, an impedance translator is coupled to an amplifier, the impedance translator to cause the amplifier to selectively amplify the one or more components of a received signal.

Abstract: A method includes receiving a signal including first data precoded on the basis of a first codebook entry of a codebook, wherein the codebook includes at least one further codebook entry, averaging a set of matrices to obtain a mean matrix wherein each matrix of the set of matrices is determined on the basis of a respective other codebook entry of the at least one further codebook entry and determining a covariance matrix on the basis of the mean matrix.

Abstract: One embodiment of the present invention relates to a communication system having a digital to analog converter, a first input, a summation component, a compensation filter, and a compensation unit. The converter is configured to receive a first signal. The first input is configured to receive a phase modulation signal. The compensation filter generates a filtered frequency deviation signal to mitigate frequency distortions, such as those from a digital controlled oscillator. The compensation unit includes one or more inputs and is configured to generate a correction signal according to the filtered frequency deviation signal and the first signal. The correction signal at least partially accounts for estimated distortions of the phase modulation signal from the amplitude modulation path and mitigates frequency induced distortions. The summation component is configured to receive the phase modulation signal and the correction signal and to generate a corrected phase modulation signal as a result.

Abstract: An RF feedback receiver arrangement includes a reference signal provider configured to provide, in a normal operating phase, a first reference signal having a first reference signal frequency, and provide, in a calibration operating phase, a second reference signal having a second reference signal frequency different from the first reference signal frequency. In addition, the RF feedback receiver arrangement includes a signal property detector configured to detect a transmit signal property of the transmit signal in the normal operating phase based on combining the first reference signal with a transmit signal or with a signal derived from the transmit signal, and to obtain, in the calibration operating phase, a calibration signal based on combining the second reference signal with the transmit signal or the signal derived from the transmit signal, which describes a disturbing portion introduced into the detected transmit signal property by the RF feedback receiver arrangement itself.