Embodiments of the invention relate to a wearable device comprising a body portion including a front-end system, one or more sensors, and a beam management circuit, and an external portion connected to the body portion comprising a first antenna array. The frontend system is operable to condition radio-frequency signals communicated via the first antenna array to thereby form a beam. The beam management circuit is configured to control the frontend system to manage the beam, such as by switching transmission between different subsets of antenna elements of the antenna array, or by switching transmission from the first antenna array to a second antenna array located on the external portion.

Apparatuses and methods for uplink (UL) transmission are provided. A method for operating a user equipment (UE) includes receiving information about an UL transmission based on X panels. The method further includes identifying, based on the information, for each layer l of the UL transmission, n.sub.l panels among the X panels, where v is a number of layers of the UL transmission; determining the UL transmission based on the identified n.sub.l panels for each layer l; and transmitting the UL transmission based on the identified n.sub.l panels for each layer l. The UL transmission corresponds to one of a single panel (SP) transmission from one of the X panels, a simultaneous transmission from multiple of the X panels (STxMP), or a combination of the SP and STxMP, where a set S.sub.1 of the X panels is used for the SP transmission and a set S.sub.2 of the X panels is used for the STxMP.

In an information transmission process, a terminal device determines a first antenna unit to be assisted and uses a reconfigurable intelligent surface (RIS) module to assist the first antenna unit in transmitting target information by the RIS module generating an additional transmit beam or receive beam.

Methods, systems, and devices for wireless communications are described. In some systems, a device may select antenna elements from a planar array to transmit or receive an orbital angular momentum (OAM) beam. The device may determine a first area (e.g., a first ring area) based on an angular direction over which the device can communicate an OAM beam with a second device and may determine a second area (e.g., a second ring area) on the planar array based on projecting the first area on the planar array. The device may select a set of antenna elements from the planar array that are located within the second area. The device may determine a complex-valued weight for each antenna element of the selected set of antenna elements and may transmit or receive an OAM beam to or from the second device via the set of antenna elements according to the angular direction.

An apparatus including: circuitry for receiving reference signals including a plurality of channel synchronization signal blocks and/or state information reference signals on a downlink channel; circuitry for measuring received signal power and/or quality level of said reference signals; circuitry for estimating arrival directions or an arrival antenna panel for a plurality of beams associated with said reference signals; circuitry for estimating, based on at least the received signal power and/or quality level, a required transmission power for a random access channel preamble for each beam; circuitry for selecting, in response to detecting a failure of a serving beam, another of said beams according to spatial diversity and/or required transmission power; and circuitry for sending the random access channel preamble on the selected beam.

Certain aspects of the present disclosure provide techniques for user equipment (UE) antenna panel distribution reporting. Particular aspects provide a method performed by a user equipment (UE), which generally includes determining a set of antenna panels of the UE for uplink antenna panel selection based on at least one criterion and transmitting a report to a base station (BS) including an indication of the determined set of antenna panels of the UE.

Disclosed are a data multiplexing transmission method, a base station, a terminal, and a storage medium. The method comprises: a base station sends service resource occupation information corresponding to a first terminal by means of a control channel, so that a second terminal performs data transmission processing on the basis of the service resource occupation information when detecting the service resource occupation information sent on the control channel. The method, base station, terminal, and storage medium provided by the present application provide a resource multiplexing solution, solve the problem of service resource conflicts between different users, and improve the utilization efficiency of uplink transmission resources.

Methods, systems, and devices for wireless communications are described. A transmitting device may operate in a non-linear region of a power amplifier by reporting an indication of power amplifier characteristics and backoff values to a receiving device. The indication of the power amplifier characteristics and the backoff values may be based on power amplifier operation in the non-linear region of power amplifier characteristic curves. The transmitting device may transmit, to the receiving device, signaling using a single carrier waveform at a transmission power in the non-linear region of the power amplifier characteristic curves based on the indication. The receiving device may receive the signaling and use the power amplifier characteristics and the backoff values to perform debiasing and nonlinearity corrections to recover the original signaling.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating a set of transmission occasions usable by the UE for transmitting layer one (L1) reports. The set of transmission occasions may include a first subset of transmission occasions for transmitting beam information reports and a second subset of transmission occasions for transmitting beam information reports and corresponding antenna port information. The UE may then transmit, within a first transmission occasion of the first subset of transmission occasions, a first L1 report including a first beam information report, and may transmit, within a second transmission occasion of the second subset of transmission occasions, a second L1 report including a second beam information report and an indication of a quantity of antenna ports supported by the UE.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a power allocation for a first uplink transmission in a component carrier that at least partially overlaps in time with a second uplink transmission in the component carrier, wherein the power allocation is determined based at least in part on a priority order that includes a priority for index values associated with time-domain overlapping uplink transmissions in a same component carrier. The UE may transmit the first uplink transmission in the component carrier based at least in part on the power allocation. Numerous other aspects are described.