Abstract: A switched mode power supply provides a reduction of switching losses and increased efficiency. The switched mode power supply includes a first switch coupled to an input terminal configured to receive an input voltage, a second switch, an inductor and an output capacitor. The first switch and the second switch are coupled together at a node, the inductor is coupled between the node and an output terminal, and the output capacitor is coupled to the output terminal. The switched mode power supply further includes a transformer coupled between a control input of the first switch and the node and a pulse generator connected to a control input of the second switch. Further, the transformer includes at most two windings, in particular a primary winding and a secondary winding which are not directly connected to each other.

Abstract: A multi-mode amplifier system includes a supply converter and a multi-stage amplifier. The supply converter is configured to generate a plurality of varied supply signals according to an output power mode. The multi-stage amplifier is configured to generate an RF output signal from an RF input signal according to the varied supply signals.

Abstract: In an embodiment, a radio device is provided. The radio device may include a signal transmitter configured to transmit a plurality of signals, the signals being transmitted with different intensities; a response receiver configured to receive a response message to one of the transmitted signals from a radio communication device having received the respective transmitted signal of the plurality of transmitted signals, the response message identifying the received message; and a assessment circuit configured to assess the reachability of the radio communication device from the radio device based on the intensity of the signal to which the radio communication device has responded.

Abstract: A circuit includes an oscillator, a variable phase adjuster and a feedback loop. The oscillator is configured to provide an RF signal, wherein the oscillator is configured to operate in a free-running mode of operation. The variable phase adjuster is configured to provide a phase adjusted signal, a phase of which is shifted with respect to a phase of an output signal of the oscillator, or with respect to a phase of a signal derived from the output signal of the oscillator. The feedback loop is configured to provide a control value for controlling the variable phase adjuster based on the phase adjusted signal and a reference oscillator signal to counteract a phase error of the phase adjusted signal.

Abstract: According to various aspects of this disclosure, a circuit arrangement is provided. The circuit arrangement may include: a memory configured to store a first encryption key for generating a first authentication vector for authentication between a mobile station and a home network of the mobile station; and a key-generator configured to derive a second encryption key from the first encryption key, the second encryption key for generating a second authentication vector for authentication between the mobile station and a visited network.

Abstract: A mobile radio communication network device is described including a receiver configured to receive control information from a mobile terminal, wherein the receiver is configured to receive the control information in a first mode or in a second mode, wherein in the second mode, less of the control information is received in time from the mobile terminal than in the first mode, and a controller configured to control the receiver to receive the control information in the first mode if the mobile terminal is associated with a first mobile terminal mobility class and to control the receiver to receive the information in the second mode if the mobile terminal is associated with a second mobile terminal mobility class.

Abstract: Some embodiments of the present disclosure relate to improved techniques for performing IP2 calibration in receivers having two complementary data paths (e.g., i-data path and q-data path). In these techniques, one of the two data paths (e.g., the i-data path) is used to generate a reference signal for the other data path (e.g., the q-data path), and/or vice versa. The other data path then performs calibration using the reference signal. Compared to previous techniques (which required separate, dedicated circuitry for generating a reference signal), the inventive techniques reduce the amount of circuitry and correspondingly reduce the manufacturing costs and power consumption. This is because the inventive techniques use the existing circuitry in complementary fashion during calibration (e.g., during calibration an i-data path generates a reference signal for a q-data path, and vice versa).

Abstract: A message generating arrangement determines whether a first communication terminal of a communication system can participate, by means of packet-switching network elements of the communication system, in a communication link in which a second communication terminal of the communication system is participating by means of circuit-switching network elements of the communication system, and generates a message on the basis of the result of the determination.

Abstract: In an embodiment, an image processing device is provided. The image processing device may include: a first image acquirer configured to acquire a first image of a first spatial resolution; a second image acquirer configured to acquire a second image of a second spatial resolution, wherein the second spatial resolution may be higher than the first spatial resolution; a determiner configured to determine in the first image a location of a part of the first image that corresponds to a pre-determined part of the second image based on a pre-determined similarity criterion; and a copying circuit configured to copy the pre-determined part of the second image to a location in an output image based on the determined location.

Abstract: A digital-to-time converter (DTC) comprises a gate controller configured to generate a gate enable signal based on first and second digital values so that the gate enable signal has a first enable period and a second enable period for each pair of a first digital value and a second digital value. A gate conditionally passes a main clock signal to a gate output in response to the gate enable signal, the gate thus providing a gated signal at a gate output. A frequency divider generates a frequency divided signal as the output signal of the digital-to-time converter based on the gated signal. The DTC may be calibrated by a time-to-digital converter connected between an input for the main clock signal and an output of a delay element of the DTC.

Abstract: The present disclosure relates provisioning a wireless capable device as an emergency call apparatus. In one implementation, a wireless capable device or apparatus receives a provisioning message from a provider of wireless voice and data services, the message including emergency call provisioning information to provision the wireless capable device or apparatus as an emergency call device.

Abstract: The method comprises receiving a signal comprising a symbol-carrier matrix, the symbol-carrier matrix comprising a predetermined pattern of reference symbols, the reference symbols comprising a target reference symbol, determining a first channel estimate vector based on demodulating received reference symbols with known reference symbols, and determining a second channel estimate vector by multiplying the first channel estimate vector with an interference cancellation matrix, wherein the second channel estimate vector includes an interference cancelled channel estimate at a position of the target reference symbol.

Abstract: In accordance with one exemplary embodiment, an electronic circuit is provided, wherein the electronic circuit comprises a first transistor and also a second transistor coupled in series with the first transistor. Furthermore, the electronic circuit comprises a capacitor, wherein a first terminal of the capacitor is coupled to a control terminal of the second transistor, and wherein a second terminal of the capacitor is coupled to an electrical potential which is dependent on a radio-frequency input signal of the electronic circuit.

Abstract: A radio communication device may include: a receiver configured to receive a first signal in a first shared radio communication channel of a first cell and configured to receive a second signal in a second shared radio communication channel of a second cell, wherein the first signal includes an information and the second signal includes the same information; and a determination circuit configured to determine the information based on the received first signal and the received second signal.

Abstract: Method and apparatuses involving satellite position signals are disclosed. Based on data indicating a usage environment, parameters, for example acquisition parameters or calculation parameters, are adapted.

Abstract: In an embodiment, a method for determining the type of a mobile radio base station is provided. The method may include receiving a synchronization message comprising a mobile radio base station identifier, and determining the type of a mobile radio base station using a previously signaled and stored piece of mobile radio base station type determining information indicating a rule as to how the type of a mobile radio base station out of a plurality of types of a mobile radio base station can be derived from a mobile radio base station identifier and the received mobile radio base station identifier.

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: A method includes a first step of receiving a signal at a first receiver circuit on the basis of a mobile communications standard supporting multiple predefined modulation alphabets wherein the received signal includes first data dedicated to the first receiver circuit and second data dedicated to a second, different receiver circuit, a second step of determining a modulation alphabet of the multiple predefined modulation alphabets during an operation of the first receiver circuit and a third step of detecting data depending on the second data at the first receiver circuit on the basis of the determined modulation alphabet.

Abstract: The method includes providing a stream of data to be transmitted, and processing the data by means of channel coding with a time-varying code rate, thereby generating a stream of channel coded data. The method further includes forming succeeding transmission time intervals and distributing the channel coded data on the transmission time intervals, and adjusting a transmission power of the signal to be transmitted by timely positioning a transmission power slope between two succeeding transmission time intervals so that the transmission power slope is contained completely within one transmission time interval of the two transmission time intervals, wherein the one transmission time interval comprises a lower nominal code rate or a lower nominal transmission power than the other one of the two transmission time intervals.

Abstract: An apparatus includes a digital processing unit configured to process input signals comprising a variable number of data frequency bands. The digital processing unit is configured to set its processing frequency range for processing the input signal based on the number of data frequency bands in the input signal to be processed. Other embodiments are also disclosed.