Abstract: Communication devices and methods are disclosed, wherein a test signal is generated at a first frequency and a higher harmonic of said test signal is received and processed at a second frequency higher than said first frequency.

Abstract: One embodiment of the present invention relates to a method and apparatus for performing both phase modulation (PM) and amplitude modulation (AM) downstream of a controlled oscillator (e.g., by providing a baseband signal having no phase modulation to a controlled oscillator and performing phase modulation on a high frequency RF signal output from the oscillator), wherein the amplitude modulation is synchronized with the phase modulation. In one particular embodiment, the method and apparatus synchronize modulation of AM and PM signal paths in a manner that provides a polar modulated signal having an amplitude of zero at a symbol boundary (e.g., a transition between different symbols) having a phase of zero (e.g., a phase that crosses through a zero crossing point).

Abstract: Apparatuses and methods relate to tracing exchanges of a plurality of signals, including requests and responses, made between a master device and a slave device of the system on chip. The apparatuses and methods further relate to tracking the number of requests and the number of responses made before and after tracing is activated for determining which responses to trace after tracing is activated and for determining which remaining number of responses to trace after tracing is deactivated.

Abstract: In various embodiments, a method for receiving synchronization signals of a mobile radio network is provided. The method may include communicating, by using a transmitting/receiving device for mobile radio signals, with a mobile radio network via a dedicated communication link; and receiving, by using the transmitting/receiving device, synchronization signals of another mobile radio network during a transmission gap in the dedicated communication link, the transmitting/receiving device not being set up for receiving signals of the other mobile radio network independently of the dedicated communication link.

Abstract: An envelope tracking system and a method for adjusting a nonlinear transfer function of an envelope tracking power supply for a power amplifier are provided. An output signal of the power amplifier is provided to a feedback receiver for determining an actual performance of the envelope tracking power amplifier. An assumed performance of the envelope tracking power amplifier is determined by evaluating the non-linear transfer function at a value defined by an input signal for a transmitter including the power amplifier. A difference between the assumed performance and the actual performance provides a correctional value for the nonlinear transfer function.

Abstract: A cascode circuit includes a first transistor and a second transistor. The first transistor and the second transistor are connected to make a cascode. In addition, the circuit has a block capacitance which is connected between a control terminal of the second transistor and a source terminal of the first transistor. In addition, the circuit has a feedback element which is connected between a drain terminal of the second transistor and a control terminal of the first transistor.

Abstract: An apparatus for synchronizing a data handover is disclosed. The calculator is clocked with a clock of a first clock domain and configured to provide synchronization pulse cycle duration information describing a temporal position of a synchronization pulse at a clock of the second clock domain. The synchronization pulse generator is clocked with the clock of the second clock domain and configured to generate the synchronization pulse such that the synchronization pulse is located at the temporal position described by the synchronization pulse cycle duration information. The phase information provider is clocked with the clock of the second clock domain and configured to provide a phase information describing a phase relation between the synchronization pulse and the clock of the first clock domain. The feedback path is configured for feeding back the phase information to the calculator and to adjust the synchronization pulse cycle duration information based on the phase information.

Abstract: A programmable remote control unit and method. The remote control unit includes a remote control configuration file request message generating circuit configured to generate a remote control configuration file request message, the remote control configuration file request message comprising operating characteristics of the remote control unit having information about a usage characteristic of a user of the remote control unit. A transmitter is configured to send the remote control configuration file request message to a remote control configuration file generating circuit. A receiver is configured to receive the at least one remote control configuration file. A memory is configured to store the at least one remote control configuration file. A remote control configuration circuit is configured to configure the remote control unit in accordance with the at least one remote control configuration file.

Abstract: A method of identifying devices on a bus and an apparatus are provided. A method of identifying devices on a bus comprises pooling a plurality of devices connected to a bus, each of the plurality of devices not having uniquely assigned to it a respective unique device identifier (ID) of the bus, selecting, after the pooling, one of the plurality of devices using at least one selection criteria, the at least one selection criteria identifying the one of the plurality of devices uniquely among all of the plurality of devices, and reassigning a unique device ID of the bus to the selected one of the plurality of devices uniquely. An apparatus is configured to carry out the method of identifying devices on a bus.

Abstract: An apparatus provides a baseband signal for exploiting receive antenna diversity by means of a digital baseband processor. The apparatus includes a combiner configured to temporally alternately select at least one sample of a first received signal corresponding to a first receive antenna and at least one sample of a second received signal corresponding to a second receive antenna and to interleave the selected samples of the first and second received signal to obtain a temporally continuous stream of samples of a baseband representation of a combined signal at an output of the combiner as the baseband signal for exploiting receive antenna diversity.

Abstract: A radio communication terminal device may include: a cellular wide area radio communication technology circuit configured to provide a communication according to a cellular wide area radio communication technology; a circuit configured to provide a direct communication device to communication device communication; and a message generator configured to generate a message comprising information of a direct communication device to communication device communication provided by the circuit.

Abstract: A memory circuit is described comprising a plurality of memory elements, wherein each memory element is configured to store one data element of a plurality of data elements, an error correction information memory configured to store joint error correction information of the plurality of data elements, for each memory element, an error detection information memory storing error detection information for the data element stored in the memory element and a memory access circuit configured to, for an access to a memory element of the plurality of memory elements, check whether the error detection information for the data element stored in the memory element indicates an error of the data element stored in the memory element and, depending on whether the error detection information for the data element stored in the memory element indicates an error of the data element stored in the memory element, to process the error correction information for the access.

Abstract: In various aspects of this disclosure, a communication terminal may be provided. The communication device may include a cellular wide area radio communication technology circuit. The cellular wide area radio communication technology circuit may be configured to provide a communication in accordance with a cellular wide area radio communication technology. The communication device may further include a controller. The controller may be configured to manage radio resources for a cellular wide area radio communication connection based on radio resources that are provided or will be provided for a direct communication terminal device to communication terminal device communication bypassing a radio access network.

Abstract: A differential amplifier stage may include: a first transistor having a gate terminal; a second transistor having a gate terminal; and a voltage limiting circuit coupled to the gate terminals of the first and second transistors, wherein the voltage limiting circuit limits a gate voltage supplied to at least one of the gate terminals of the first and second transistors.

Abstract: In various aspects of this disclosure, a communication terminal device may be provided. The communication terminal device may include a cellular wide area radio communication technology circuit. The cellular wide area radio communication technology circuit may be configured to provide a communication according to a cellular wide area radio communication technology. The communication terminal device may further include a circuit. The circuit may be configured to provide a direct communication terminal device to communication terminal device communication bypassing a radio access network according to information received via the radio access network. The communication terminal device may further include a message generator. The message generator may be configured to generate a message to transmit to a base station.

Abstract: According to an embodiment, a communication terminal is described comprising two radio communication modules and a controller configured to, in response to the reception of a request for starting communication using the second radio communication module, perform at least one of requesting from a communication device to perform reception quality measurements of signals received from the first radio communication module if the first radio communication module is transmitting signals to the communication device; and performing reception quality measurements of signals received from the communication device by the first radio communication module if the first radio communication module is receiving signals from the communication device.

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: A polar modulator arrangement includes a first and a second node to receive a signal having a first and a second component corresponding to an amplitude component and a phase component. A frequency separation device separates the first component into a low-frequency portion and a high-frequency portion depending on a cut-off frequency. The high-frequency portion is nonlinearly filtered and combined with the low-frequency portion to a first processed component. A combination element generates a polar modulated radio frequency signal as a function of the first processed component and the second component.

Abstract: A circuit for generating a temperature-stabilized reference voltage on a semiconductor chip includes a differential pair including a first and a second bipolar junction transistor. The circuit further includes a feedback circuit including an amplification stage and configured to control a current flowing through the first bipolar junction transistor and a current flowing through the second bipolar junction transistor. A first resistor is connected between an emitter of the first bipolar junction transistor and an emitter of the second bipolar junction transistor, thereby generating a PTAT voltage across the first resistor. Further, the circuit includes a current source forcing a partial current having a CTAT behavior through the first resistor.

Abstract: In an embodiment, a mobile radio communication device is provided. The mobile radio communication device may include a mobile radio communication protocol circuit configured to provide a mobile radio base station function for a mobile radio communication with another mobile radio communication device, a network control interface circuit configured to receive communication control signals from a mobile radio network circuit being controlled by a mobile radio network operator to control the mobile radio communication protocol circuit, and a trusted processing circuit configured to process a computer program in a trusted processing environment to provide a trusted processing result, wherein the trusted processing circuit is outside of the mobile radio network operator's domain.