H04L5/1461

Transmitter signal cancellation in phased array receivers
11606115 · 2023-03-14 · ·

A method employing an array of antenna elements and a plurality of transceivers, each including (1) a transmitter chain; (2) a receiver chain; and (3) a duplexer having an input electrically connected to the transmitter chain, an output electrically connected to the receiver chain, and a duplexed port electrically connected to a different antenna element, the method involving: identifying among the plurality of transceivers a first and second subsets of transceivers such that together the first and second subsets of transceivers constitute all of the transceivers among the plurality of transceivers; for each transceiver within the first subset of transceivers, but not for the transceivers within the second subset of transceivers, introducing a Φ degree phase shift between the duplexed port of the duplexer and the antenna element to which the duplexed port is electrically connected, wherein Φ=−(2n+1)90°, and wherein n is an integer.

Radio frequency module and communication device
11606107 · 2023-03-14 · ·

A radio frequency module is capable of at least one of simultaneously transmitting, simultaneously receiving, or simultaneously transmitting and receiving a radio frequency signal of a first communication band and a radio frequency signal of a second communication band. The radio frequency module includes: a module board including a first principal surface and a second principal surface on opposite sides of the module board; a first duplexer having, as pass bands, a transmission band and a reception band of the first communication band; and a second duplexer having, as pass bands, a transmission band and a reception band of the second communication band. The first duplexer is disposed on the first principal surface and the second duplexer is disposed on the second principal surface.

Methods and apparatus for analog canceler tuning using neural networks

A network device includes a transceiver configured to concurrently transmit signals and receive signals within a single frequency band resulting in radio-frequency signal interference. The device includes an analog canceler configured to mitigate the signal interference. The device includes a neural network that receives data that describes characteristics of the signal interference and provides coefficients for the analog canceler as outputs. The neural network-generated coefficients are applied to the analog canceler which uses them to cancel the signal interference.

METHOD AND DEVICE FOR SETTING RESOURCE POOL IN NR V2X
20230155801 · 2023-05-18 ·

A method for a first device to perform wireless communication and a device supporting same, The method may include the steps of: receiving, from a base station, a time division duplex uplink-downlink (TDD UL-DL) configuration including information related to a UL resource; receiving, from the base station, information related to the start of sidelink (SL) symbols, information related to the number of the SL symbols, and a bitmap indicating one or more slots included in an SL resource pool; and determining the SL resource pool.

Multiplexer with hybrid acoustic passive filter
11652462 · 2023-05-16 · ·

Aspects of this disclosure relate to a multiplexer with a hybrid acoustic passive filter. The multiplexer includes a plurality of filters configured to filter respective radio frequency signals, a shared filter coupled between each of the plurality of filters and a common node, and a radio frequency filter coupled to the common node. At least a first filter of the plurality of filters includes acoustic resonators and a non-acoustic passive component. Related multiplexers, wireless communication devices, and methods are disclosed.

FD MODE DEPENDENT UCI MULTIPLEXING
20230148182 · 2023-05-11 ·

Apparatus, methods, and computer program products for PHY priority for wireless communications are provided. An example apparatus may multiplex a first uplink control information transmission based on a first uplink control information resource and a second uplink control information transmission based on a second uplink control information resource that overlaps in time with the first uplink control information resource, at least one of the first uplink control information resource and the second uplink control information resource being for full-duplex communication. The example apparatus may determine, based on applying a multiplexing rule on the full-duplex communication, whether to use the first uplink control information resource associated with a first beam or the second uplink control information resource associated with a second beam. The example apparatus may transmit a multiplexed uplink control information transmission using a determined uplink control information resource based on the multiplexing rule.

METHOD AND APPARATUS FOR SLOT FORMAT INDICATION IN A WIRELESS COMMUNICATION SYSTEM
20230143578 · 2023-05-11 ·

Methods, systems, and apparatuses are provided for slot format indication in a wireless communication system, providing improved efficiency of slot format and collision handling for duplexing enhancement. A User Equipment (UE) can receive indication of one or more first frequency resources from a base station, wherein the one or more first frequency resources are associated with a first transmission direction, and receive indication of, or deriving, one or more second frequency resources, wherein the one or more second frequency resources are associated with a second transmission direction.

Full duplex downlink and uplink beam pair selection

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, in a full duplex transmission mode, a measurement trigger indicating a set of candidate base station beam pairs, wherein a candidate base station beam pair comprises a base station uplink (UL) beam and a base station downlink (DL) beam, wherein the corresponding identified UE beam pair comprises a UE UL beam and a UE DL beam, wherein the set of candidate base station beam pairs are identified based at least in part on a base station self-interference measurement; and transmit, to the base station, a beam measurement report based at least in part on a plurality of beam measurements obtained based at least in part on the measurement trigger. Numerous other aspects are provided.

Clutter interference management

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, for full-duplex mode communication on a first link and a second link, a timing adjustment to at least one of a first timing or a second timing, wherein the timing adjustment is to cause a delay between clutter reflection from a first signal and an occurrence of a second signal to occur during a cyclic prefix of the second signal; cause the timing adjustment to be applied to the at least one of the first timing or the second timing; and communicate in the full-duplex mode with a first node and a second node in accordance with the timing adjustment, wherein communicating includes transmitting the first signal to the first node and receiving the second signal from the second node. Numerous other aspects are provided.

Transmit power adjustment for full duplex feedback

Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) operating according to full duplex (e.g., transmit and receive concurrently) may adapt a transmit power of a sidelink feedback message based on priorities of data messages. For example, the UE may determine a priority of a first data message received at the UE in a previous slot and a priority of a second data message transmitted to the UE in a previous slot. Based on a comparison of the priorities of the data messages, the UE may adjust a transmit power for a feedback message indicating a decoding outcome of the first data message and transmit the feedback message according to the adjusted transmit power while receiving a feedback message indicating the decoding outcome of the second data message thereby increasing efficiency while reducing interference.