Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first configuration for a first sounding reference signal (SRS) set and a second configuration for a second SRS set, the first SRS set to be transmitted using a first group of antennas of the UE and the second SRS set to be transmitted using a second group of antennas of the UE; determine a size of a downlink control information (DCI) field to be included in an uplink DCI communication scheduling a physical uplink shared channel (PUSCH) transmission, the DCI field to indicate a selected SRS set; receive the uplink DCI communication scheduling the PUSCH transmission; and identify the selected SRS set based at least in part on the determined size of the DCI field and information carried in the DCI field. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment In (UE) may transmit, and a base station may receive, information indicating that the UE has a capability to support an uplink transmission configuration indication (TCI) state. The base station may transmit, and the UE may receive, downlink signaling identifying an uplink transmit beam based at least in part on the information indicating that the UE has the capability to support the uplink TCI state. The UE may transmit, and the base station may receive, uplink information using the uplink transmit beam identified in the downlink signaling. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information that indicates a transmit precoding matrix indicator, that identifies a precoding matrix, and a set of demodulation reference signal (DMRS) antenna ports. A first association may be between a first set of antenna indices of the precoding matrix, that form a first transmission group, and a first code-division multiplexing (CDM) group of the set of DMRS antenna ports, and a second association may be between a second set of antenna indices of the precoding matrix, that form a second transmission group, and a second CDM group of the set of DMRS antenna ports. The UE may transmit an uplink transmission according to the first association and the second association. Numerous other aspects are provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information that indicates a transmit precoding matrix indicator, that identifies a precoding matrix, and a set of demodulation reference signal (DMRS) antenna ports. A first association may be between a first set of antenna indices of the precoding matrix, that form a first transmission group, and a first code-division multiplexing (CDM) group of the set of DMRS antenna ports, and a second association may be between a second set of antenna indices of the precoding matrix, that form a second transmission group, and a second CDM group of the set of DMRS antenna ports. The UE may transmit an uplink transmission according to the first association and the second association. Numerous other aspects are provided.

Embodiments of this application provide a communication method, apparatus, and system, and a storage medium. The method includes: sending first indication information, where the first indication information is used to configure a candidate spatial parameter information set of a first uplink channel; and sending second indication information, where the second indication information indicates at least one piece of first spatial parameter information in the candidate spatial parameter information set, the at least one piece of first spatial parameter information is used to transmit a second uplink channel and/or an uplink signal, and the first uplink channel and the second uplink channel are of different types.

An electronic device and a method for performing beam searching by using a multi-polarization array antenna are provided. To this end the electronic device controls one or a plurality of antenna modules to operate such that at least two antenna elements among the plurality of antenna elements use beams having different directions at a specific time period, and control the at least two antenna elements to receive, in a corresponding beam direction, reference signals having a unique polarization characteristic supported by the at least two antenna elements.

An electronic device and a method for performing beam searching by using a multi-polarization array antenna are provided. To this end the electronic device controls one or a plurality of antenna modules to operate such that at least two antenna elements among the plurality of antenna elements use beams having different directions at a specific time period, and control the at least two antenna elements to receive, in a corresponding beam direction, reference signals having a unique polarization characteristic supported by the at least two antenna elements.

According to a first method, a first user equipment (UE) may receive sidelink control information (SCI) over a sidelink communication link between the first UE and a second UE. The SCI may indicate a precoding resource block group (PRG) size associated with sidelink communications with the second UE. The first UE may determine the PRG size for communications over the sidelink communication link based at least in part on the SCI. The first UE may then receive a sidelink message from the second UE via the sidelink communication link based on the determined PRG size, and may transmit a sidelink message to the second UE based on the determined PRG size. According to a second method, a first user equipment may identify a sidelink configuration for a sidelink communication link between the first UE and a second UE, determine a PRG size for communications over the sidelink communication link based at least in part on the sidelink configuration, and receive, from the second UE, a sidelink message based at least in part on the PRG size.

Embodiments include systems and methods that may be performed by a processor of a wireless device for managing a communication link with a communication network. Various embodiments may include determining whether a cause of a detected physical downlink shared channel (PDSCH) error in a downlink communication from a base station is an out of coverage condition, and initiating an autonomous handover from the base station to a second base station in response to determining that the cause of the PDSCH error is an out of coverage condition.

This application provides a method for dynamically switching antennas. User equipment determines an antenna switching sequence based on a networking mode of the user equipment and an actual scenario, and performs antenna switching based on the determined antenna switching sequence. When the technical solutions of this application are implemented, a problem that a conflict exists in an antenna switching process is effectively resolved without adding hardware.