A radiofrequency device includes at least the following elements: an antenna, linked to a first transmission channel or reception channel selection device K.sub.1, followed by a front-end stage whose output is linked to a second transmission channel or reception channel selection device K.sub.2, a group of filters connected between the second selection device K.sub.2 and a third transmission channel or reception channel selection device K.sub.3, the third selection device K.sub.3 is connected to a transceiver, the transceiver comprises a converter part, wherein the group of filters comprises N filters having distinct frequency bands B.sub.N in a given bandwidth B.sub.T, the group of filters is linked to a manager selecting at least one of the filters Fj of the group of filters in order to attenuate a first type of disturbing signals P.sub.1, in the vicinity of the centre frequency of the channel to be received, the transceiver comprises a stage comprising a variable filter, the variable filter is configured in order to eliminate a second type of disturbing signals P.sub.2, the stage is connected between the group of filters and the analog-digital and digital-analog conversion set, the number N of filters of the group of filters is chosen by taking into account the operating frequency band value of the antenna, the value of a selected bandwidth Bc and a coefficient δ taking into account overlap effects.

Aspects of the disclosure include a die and corresponding radio-frequency module and wireless mobile device. Examples of the die include, integral to the die, a power amplifier controller, a low noise amplifier, and an antenna switch in communication with both the power amplifier controller and the low noise amplifier.

A radio frequency module includes a first terminal, a second terminal, a third terminal, a first switching circuit, a bandpass filter, a first band elimination filter, and a first wiring conductor. The first switching circuit switches between a connection between a first switch terminal and a second switch terminal and a connection between the first switch terminal and a third switch terminal. The bandpass filter is disposed on a first signal path connecting the first terminal to the first switch terminal, and has a first passband. The first band elimination filter is disposed on a second signal path connecting the second switch terminal to the second terminal, and has a first elimination band included in the first passband. The first wiring conductor forms a third signal path connecting the third switch terminal to the third terminal.

Disclosed are techniques for wireless communication. In an aspect, a band-pass filter of a radio frequency front end (RFFE) of a user equipment (UE) receives an analog radio frequency (RF) signal having a first bandwidth associated with a first sampling rate, the analog RF signal comprising a positioning reference signal (PRS). An analog-to-digital converter (ADC) of the UE samples the analog RF signal at a second sampling rate to generate a digital RF signal representing the analog RF signal, wherein the ADC operates at a second bandwidth lower than the first bandwidth, and wherein the second sampling rate is lower than the first sampling rate by an inverse of a folding factor for the first bandwidth. The digital RF signal is then output to a baseband processor of the UE.

A front-end circuit includes an antenna connection terminal, a selection terminal, and a selection terminal, a switching circuit including a common terminal and selection terminals, a receive filter configured to pass a radio-frequency signal in Band B, a signal path connecting the selection terminal and the selection terminal and including the receive filter, a signal path connecting the selection terminal and the selection terminal and defining and functioning as a bypass path without any filter, and a filter coupled between the antenna connection terminal and the common terminal and configured to pass a first frequency range group including Band B.

Methods, systems, and devices for a wakeup receiver operation is described. A receiver may include a conversion circuit that converts an RF signal to a baseband signal, where the baseband signal comprise a set of symbols received at a symbol rate. The receiver may include an analog-to-digital converter that converts the baseband signal to samples at a sample rate greater than the symbol rate. The receiver may include a set of correlators, each correlator of the set may receive a respective subset of the samples of the baseband signal and generate a respective output. The receiver may include a compare circuit that receives the respective outputs from the set of correlators and compares the respective outputs with a threshold, where the compare circuit also generates a wakeup command based at least in part on at least one output of the respective outputs satisfying the threshold.

The present disclosure relates to a portable radio controller unit arrangement (1, 1A, 1B, 1C) that comprises an electrical power source (9) that is adapted to provide power to a microwave radio transceiver (3) that comprises a transmitter unit (13) and a receiver unit (15). The microwave radio transceiver (3) is comprised in a microwave link node (4) and is connected to a directive antenna (5) and to a signal cable (2). The radio controller unit arrangement (1) further comprises a user interface unit (8, 21) which is adapted to communicate with the microwave radio transceiver (3) such that the portable radio controller unit arrangement (1, 1A, 1B, 1C) is adapted to enable user control of the microwave radio transceiver (3) via the user interface unit (8).

An electronic device for converting a frequency with a local oscillator (LO) for generating an LO signal is provided. The electronic device may include an intermediate frequency (IF) port configured to input or output a signal in a first frequency band, a radio frequency (RF) port configured to input or output a signal in a second frequency band, a passive mixer configured to convert the signal in the first frequency band into the signal in the second frequency band or convert the signal in the second frequency band into the signal in the first frequency band, an LO configured to generate an LO signal in one of a plurality of frequency bands and provide the LO signal to the passive mixer, and a bi-directional amplifier including a gain equalizer configured to control gain flatness of a signal input to or output from the IF port.

A switch module switches among a first state where first and second frequency bands are used in parallel, a second state where only the first frequency band is used, and a third state where none of the first and second frequency bands is used, and includes first, second, and third filters and an antenna switch. In the first state, a common terminal and the first and second filters are connected and the common terminal and the third filter are not connected. In the second state, the common terminal and the first and third filters are connected, and the common terminal and the second filter are not connected.

An electronic device configures two or more virtual responders associated with different subsets of capabilities of a physical responder in the electronic device, where the physical responder comprises a radio-frequency (RF) transceiver and multiple antennas, and where a given virtual responder corresponds to the RF transceiver and a given antenna. Then, the electronic device performs, based at least in part on wirelessly communication with a second electronic device and using at least the virtual responders, measurements on wireless signals from the second electronic device to the electronic device, where the measurements correspond to a time of flight of the wireless signals. Next, the electronic device determines, based at least in part on the measurements, a range between the electronic device and the second electronic device, where the determination uses the measurements from different virtual responders to correct for an environmental condition and/or increase an accuracy of the determined range.