A wireless device receives one or more messages comprising spatial relation configuration parameters of a physical uplink control channel. The configuration parameters indicate a plurality of reference signal (RS) sets. An RS set of the plurality of RS sets comprises one or more RSs. A medium access control control element, activating the RS set of the plurality of RS sets, is received. A downlink control information, indicating an RS of the RS set, is received. A spatial domain transmission filter, for the physical uplink control channel, is determined based on based on the RS. Uplink control information is transmitted, via the physical uplink control channel, based on the spatial domain transmission filter.

Techniques for selecting the number of sounding reference signal (SRS) resources to be used by a user equipment (UE) operating in a wireless communications system are provided. The UE determines a degree of partial beam correspondence of the UE and compares the degree to a threshold amount of partial beam correspondence support of the UE. In response to the comparison, UE selects a number of sounding reference signal (SRS) resources to request from a network node and sends a SRS resource request message to the network node to request the selected number of SRS resources.

A method, performed by a User Equipment (UE), for Uplink (UL) transmission management includes the UE determining a default spatial domain transmission filter for an UL resource according to at least one Quasi Co-Location (QCL) parameter of a Control Resource Set (CORESET) after determining that the UL resource is not configured with a spatial domain transmission filter and a pathloss reference Reference Signal (RS) resource, and transmitting the UL resource by applying the default spatial domain transmission filter.

A method, performed by a User Equipment (UE), includes receiving, from a cell, configuration signaling configuring the UE with one or more PUCCH resources on an active UL BWP, the one or more PUCCH resources not being configured with PUCCH-SpatialRelationInfo, and the configuration signaling indicating that a default spatial relation behavior for PUSCH transmission scheduled by a DCI format 0_0 is enabled; receiving, from the cell, the DCI format 0_0 on an active DL BWP, the DCI format 0_0 providing scheduling information for a PUSCH; and transmitting the PUSCH according to the default spatial relation behavior which determines a spatial relation with reference to a QCL-TypeD RS corresponding to a QCL assumption of a pre-determined CORESET on the active DL BWP of the cell.

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for indication of asymmetric default operating frequencies (DOFs) for bidirectional communications. In one aspect, a first device may report to the second device that the first device is using either a same DOF for communications in different transmission directions or different DOFs for the different transmission directions. Based on the reported DOF(s), the second device may use beam correspondence-based beam relationships on the different transmission directions if the DOFs are the same and resource block allocations for the communications in both transmission directions are closely matched in frequencies. Alternatively, if the DOFs are different for the different transmission directions, the second device may adjust either a codebook parameter or may use an appropriate antenna panel. Additionally, or alternatively, the second device may direct the first device to use respective antenna subarrays with similar DOFs.

Disclosed is a method of transmitting an uplink signal by a user equipment in a wireless communication system. The method includes receiving first information related to an uplink (UL) transmission beam, determining a listen-before-talk (LBT) beam based on the first information, and transmitting the uplink signal through the UL transmission beam based on success of LBT based on the LBT beam.

Methods and apparatuses for beam measurement and reporting. A method for operating a user equipment (UE) includes receiving information about a report, the report including at least one capability value about an uplink (UL) transmission; determining the at least one capability value; determining the report including an indicator indicating the at least one capability value; and transmitting the report.

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for indication of asymmetric default operating frequencies (DOFs) for bidirectional communications. In one aspect, a first device may report to the second device that the first device is using either a same DOF for communications in different transmission directions or different DOFs for the different transmission directions. Based on the reported DOF(s), the second device may use beam correspondence-based beam relationships on the different transmission directions if the DOFs are the same and resource block allocations for the communications in both transmission directions are closely matched in frequencies. Alternatively, if the DOFs are different for the different transmission directions, the second device may adjust either a codebook parameter or may use an appropriate antenna panel. Additionally, or alternatively, the second device may direct the first device to use respective antenna subarrays with similar DOFs.

This application relates to a method for beam selection, a terminal device, and a network device. The method for beam selection is applicable to a terminal device and specifically includes the following. The terminal device transmits first information to a network device according to a current channel condition after the terminal device transmits beam correspondence capability information to the network device. The first information is used for the network device to determine current beam correspondence capability of the terminal device.

A wireless device transmits a preamble based on a first spatial filter. The wireless device receives an uplink grant indicating transport block (TB) repetitions and a reference signal (RS). The wireless device transmits, based on the first spatial filter, first repetitions of the TB repetitions. The wireless device transmits, based on a second spatial filter associated with the RS, second repetitions of the TB repetitions.