This disclosure provides systems, methods, and apparatuses for wireless communication. In some aspects, a user equipment (UE) may enable adaptive receive diversity (RxD) by receiving an indicator for a channel occupancy time (COT), outside of the COT and in a non-RxD mode, and may transfer to the RxD mode for reception during the COT. After an end to the COT, the UE may return to the non-RxD mode. In this way, the UE enables improved power gain, diversity gain, or spatial nulling gain during a COT, and enables reduced power utilization outside of the COT.

The present invention relates to an electronic device and, more particularly, to an electronic device and a method for transmitting and receiving signals. To this end, the electronic device according to the present invention may comprise: a transceiving unit comprising a first group of power amplifiers (PAs) including at least one PA and a second group of PAs including at least one PA; an antenna unit comprising a first antenna selectively coupled to a PA supporting a first frequency range or a second frequency range of the first group of PAs and the second group of the PAs, and a second antenna selectively coupled to a PA supporting the second frequency range or a third frequency range of the first group of PAs and the second group of the PAs; a power supply unit comprising a first power supply modulator connected to the first group of PAs and a second power supply modulator connected to the second group of PAs; and a communication processor for changing an output voltage at least in part on the basis of transmit power of the PA coupled to at least one of the first power supply modulator and the second power supply modulator, wherein at least one of the first group of PAs and at least one of the second group of PAs are capable of transmitting signals simultaneously.

An electronic device is provided. The electronic device includes a plurality of antennas, a radio frequency (RF) circuit configured to electrically connect with the plurality of antennas, and a processor. The plurality of antennas include a first main antenna, a first sub-antenna, a second main antenna, and a second sub-antenna. The processor controls the RF circuit to operate in a first mode of receiving a signal using the first main antenna and the first sub-antenna. The processor controls the RF circuit to operate in a second mode different from the first mode to receive the signal based on a signal state.

RF communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, an RF communication system includes a transmitter that transmits a transmit signal through a first front end circuit, a receiver that processes a receive signal from a second front end circuit, and a feedback receiver that processes a feedback signal from the first front end circuit to generate a digital interference cancellation signal that compensates the receiver for interference arising from the transmitter.

The present disclosure provides a method, performed at a network node, for beam control signalling. The network node is configured to communicate with a wireless device comprising one or more physical antenna panels. Each physical antenna panel is configured to communicate with the network node using one or more panels. The method comprises receiving, from the wireless device, control signalling indicative of an association of the one or more panels with one or more corresponding physical antenna panels. The method comprises selecting, based on the association, one or more beams to be used by the wireless device in communication with the network node.

This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

An example method of wireless data transmission may include determining a configuration of multiple antenna element nodes. The configuration may indicate a frequency band of operation for each of the multiple antenna element nodes and the configuration may be determined based on one or more network factors of multiple frequency bands. The method may also include selecting, based on the configuration, a signal path to couple to each of the multiple antenna element nodes from multiple signal paths. The multiple signal paths may each be configured to amplify signals carried thereon and at least two of the multiple signal paths may be coupled between each antenna element node and a common node. The method may further include directing, based on the configuration, wireless communications over the multiple antenna element nodes.

Systems for determining a variability in a state of a medium include one or more transmit elements or antennas and one or more receive elements or antennas which are relatively decoupled from one another. The transmit and receive elements or antennas can be less than 95% coupled to one another. The system also includes a transmit circuit configured to generate a transmit signal to be transmitted, which is in a radio or microwave frequency range of the electromagnetic spectrum. The system also includes a receive circuit configured to receive a response detected by the at least one receive antenna resulting from transmission of the transmit signal into the medium. The system includes a processor configured to determine the variability in the state of the medium based on processing of the response over time. The variability can further be used to direct notifications or automated actions.

Various embodiments relate to an apparatus and a method for managing coexistence of multiple communication schemes by an electronic device. The electronic device may include: a first communication circuit configured to support a first frequency band; a second communication circuit configured to support at least a part of the first frequency band and a second frequency band; a first switch connected to the first communication circuit; a second switch connected to the second communication circuit and the first switch; a first antenna connected to the first switch and configured to support the first frequency band; and a second antenna connected to the second switch and configured to support the second frequency band, wherein based on the second communication circuit using the first frequency band, the second communication circuit is configured to control the first switch and the second switch to selectively connect the first antenna to one of the first communication circuit or the second communication circuit.

The present disclosure provides a method, performed at a network node, for beam control signalling. The network node is configured to communicate with a wireless device comprising one or more physical antenna panels. Each physical antenna panel is configured to communicate with the network node using one or more panels. The method comprises receiving, from the wireless device, control signalling indicative of an association of the one or more panels with one or more corresponding physical antenna panels. The method comprises selecting, based on the association, one or more beams to be used by the wireless device in communication with the network node.