Abstract: The present invention relates to various embodiments of a Radio-Frequency (RF) front-end for use in a receiver, a diversity receiver and a method for operating a diversity receiver.

Abstract: A method and wireless communication network that employs adapted control channel information to facilitate centralized and distributed scheduling of network resources for a network with mobile communication devices of differing bandwidth capabilities are described. The method includes transmitting control channel data of a first format over a control channel, wherein the control channel data of the first format conveys information related to data transmitted within a first frequency band and transmitting control channel data of a second format over the control channel, wherein the control channel data of the second format conveys information related to data transmitted over one or more frequency bands, the one or more frequency bands having a combined bandwidth equal or greater than the first frequency band.

Abstract: One embodiment covers an apparatus for generating a transmission signal. The apparatus may include a signal generator that generates a first signal with a first frequency spectrum comprising a carrier frequency; a power control unit that provides a power information signal which represents a signal level of the transmission signal residing at the carrier frequency; a first signal shaper for noise-shaping the first signal based on the power information signal to form a second signal which has a noise component in at least one frequency range remote from the carrier frequency, the noise component of the second signal being from one or more signal components associated with the carrier frequency; and a signal output that provides the second signal in the form of a transmission signal.

Abstract: The present invention relates to various embodiments of a Radio-Frequency (RF) front-end for use in a receiver, a diversity receiver and a method for operating a diversity receiver.

Abstract: One embodiment described is an apparatus that includes an active device structured in a semiconductor body. The semiconductor body may include a gate terminal to receive a switched bias signal, and a bulk terminal to receive a forward body-bias signal. A first circuit portion may be coupled to the gate terminal to provide the switched bias signal, and a second circuit portion may be coupled to the bulk terminal to provide the forward body-bias signal.

Abstract: An electronic device is equipped with an oscillator interface to be coupled to an oscillator crystal of an oscillator element. The electronic device includes an oscillator circuit which is coupled to the oscillator interface and generates an oscillator signal. The electronic device is further provided with a temperature measurement interface to be coupled to a temperature sensor of the oscillator element so as to receive the temperature signal. For accomplishing temperature compensation, the electronic device is provided with a measurement controller coupled to the measurement interface and configured to measure a first value of the temperature signal at a first point of time and a second value of the temperature signal at a second point of time. A frequency drift estimator is provided so as to estimate a frequency drift of the oscillator signal on the basis of the first value of the temperature signal and a second value of the temperature signal.

Abstract: An amplifier includes a differential input with a positive and a negative input and an analog integrator with a differential integrator input and a differential integrator output. The analog integrator further includes an operational amplifier with a positive operational amplifier input, a negative operational amplifier input, a positive operational amplifier output and a negative operational amplifier output. The differential integrator input is coupled to the differential input. A ternary pulse width modulator includes two modulator inputs coupled to the differential integrator output and two modulator outputs. A first feedback path is coupled between a first of the two modulator outputs and the positive operational amplifier input and a second feedback path is coupled between a second of the two modulator outputs and the negative operational amplifier input. A first divert capacitor is coupled between the positive operational amplifier input and a constant voltage reference.

Abstract: A description is given of a circuit having a transmitter having a first transmission stage for generating a first transmission signal according to a first standard and a bias stage for generating a bias signal for a second standard and a second transmission stage for generating a second transmission signal according to the second standard. The second transmission stage is effectively coupled to the bias stage in order to receive the bias signal.

Abstract: The present disclosure relates to impedance tuning of transmitting and receiving antennas.

Abstract: Disclosed is a method for generating and transmitting system information in a mobile radio cell. In said method, system information is grouped into several information frames, information required for a mobile user device in order to verify if said mobile user device has access to the mobile radio cell being grouped into a single information frame, and the information frames are fed to the data securing layer by the network layer and are transmitted by means of the physical layer.

Abstract: A method for generating a plurality of messages for inviting communication devices to a communication conference. The method includes establishing a first communication conference with a plurality of first communication devices, receiving a plurality of communication device identifiers from a communication device participating in the first communication conference, which communication device identifiers identify communication devices to be invited to at least a second communication conference, determining communication devices from the plurality of the communication devices, which are already involved in the first communication conference, and generating messages for inviting communication devices to the second communication conference only for those communication devices which are not involved in the first communication conference.

Abstract: In a method for requesting media replication in a collaborative communication session, a message is sent which specifies that a communication medium for a collaborative communication session, which is currently being transmitted to at least one terminal, should additionally be transmitted to at least one other terminal, with the at least one other terminal being indicated in the message as the recipient of the communication medium. In a method for assigning a communication medium for a collaborative communication session, a corresponding message is received, and the communication medium is assigned to the at least one other terminal as the recipient of the communication medium. The methods are carried out by appropriately designed apparatuses.

Abstract: In various aspects of this disclosure, a communication terminal device may be provided. The communication terminal device may include a receiver. The receiver may be configured to receive a message from a first communication device. The communication terminal device may further include a circuit configured to provide a communication device to communication device communication. The communication terminal device may further include a controller. The controller may be configured to determine whether to relay the received message to at least one second communication device. The controller may further be configured to modify the message if the controller determined to relay the received message. The controller may further be configured to relay and transmit the modified message to the at least one second communication device.

Abstract: This disclosure relates to an all digital phase-lock loop (ADPLL). The ADPLL determines an error generated by a digitally controlled oscillator (DCO) which is operated using a tuning word, stores information related to the error, and compensates for the error based on the stored information.

Abstract: Receiving an indication of a frequency ratio of first and second clocks; generating an indication of a number of clock pulses of the second clock occurring between first and second clock pulses of the first clock; and generating an indication of a time offset between (1) a clock pulse of the second clock occurring between the second clock pulse and a third clock pulse of the first clock, and (2) the second clock pulse of the first clock. Also, receiving an input data word representing a fractional number, a first part of the input data word comprising an integer portion of the fractional number and a second part comprising a decimal portion of the fractional number; providing a first output data word that is either the first part of the input data word or an increment by one of the first part; and providing a second output data word that is an integer multiple of the second part.

Abstract: In an embodiment, a mobile radio communication device is provided. The mobile radio communication device may include a receiver configured to receive radio pilot formation according to a radio communication technology family, and a power supply switch controller to selectively energizing and de-energizing one or more components of the mobile radio communication device based on the received radio pilot information. The radio pilot information includes availability information about the availability of at least one radio communication technology of at least one other radio communication technology family.

Abstract: According to one embodiment, a communication device is described comprising a communication circuit configured to communicate in a first communication mode using a first frequency range and a receiver configured to receive a switching delay information message indicating a time interval by which start of communication in a second communication mode using a second frequency range should be delayed after a switch from the first communication mode to the second communication mode. The communication circuit is configured to communicate in the second communication mode when the time interval has elapsed since the start of the switching from the first communication mode to the second communication mode.

Abstract: A first stage of a digital filter receives input data to be filtered, the first stage of a digital filter operating at a first clock; a second stage of the digital filter outputs filtered output data, the second stage of the digital filter operating on a second clock, wherein a ratio of a frequency of the first clock and a frequency of the second clock is a fractional number, and a frequency of the second clock is higher than a frequency of the first clock; the first stage receives an indication of a ratio of the first clock and the second clock; and the first stage receives an indication of a time offset between (1) a clock pulse of the second clock, which occurs between a first clock pulse and a second clock pulse of the first clock, and (2) the first clock pulse of the first clock.

Abstract: A method and a device for synchronizing broadcast of streaming data by a transmitting data processing unit to a plurality of receiving data processing units is provided. After a data word has been sent, a synchronizer in the transmitting data processing unit collects an acknowledge signal from each of the receiving data processing units and then generates an indication that the next data word can be transmitted. This allows to speed-up data delivery to parallel working processing units in a system-on-a-chip since data delivery has no longer to account for a maximum predictable latency of the respective receiving units.

Abstract: Implementations of a high gain range transmitter with variable-size mixers are described.