A computer-readable storage medium stores instructions to configure a UE for beam management for multi-TRP operation in a 5G NR and beyond wireless network, and to cause the UE to perform operations. The operations include performing measurements on a plurality of SS/PBCH blocks to determine a set of preferred SS/PBCH beams. A MAC control element (CE) is encoded for transmission to a base station. The MAC CE includes at least one preferred beam pair for the multi-TRP operation. The at least one preferred beam pair includes a pair of preferred SS/PBCH beams selected from the set and corresponding to a pair of UE antenna panels. Downlink data received by the pair of UE antenna panels during the multi-TRP operation is decoded. The downlink data is received via reception beams corresponding to the pair of preferred SS/PBCH beams.

Methods, systems, and devices for wireless communication are described to support concurrent beam pair link (BPL) measurement and reporting on a subband basis. A base station may configure a user equipment (UE) to measure one or more wideband reference signals transmitted by the base station for each of a set of BPLs, for joint BPL selection, and the UE may receive the wideband reference signals. The UE may perform measurements for each of the set BPLs at a subband level and may report signal qualities for the different BPL combinations at a subband level. For example, the UE may measure different combinations of transmit beams and receive beams (e.g., may measure different BPLs) over multiple antenna panels, on a per-subband basis. The UE may report information based on the measurements that may support selection of BPLs for multi-panel and multi-beam operation for one or more subbands.

The present disclosure relates generally to wireless communications, and more particularly, to techniques for self-interference measurement (SIM) at a user equipment (UE). An apparatus for wireless communications may determine downlink (DL) symbols for measuring a self-interference (SI) between an active uplink (UL) transmit (Tx) beam of the UE and an active downlink (DL) receive (Rx) beam of the UE. The active uplink (UL) transmit (Tx) beam may be based on an uplink (UL) subcarrier spacing (SCS), and the active downlink (DL) receive (Rx) beam may be based on a downlink (DL) subcarrier spacing (SCS). The apparatus may perform a self-interference measurement (SIM) between the active uplink (UL) transmit (Tx) beam and the active downlink (DL) receive (Rx) beam. The apparatus may output for transmission, to a network entity, a report of the at least one self-interference measurement (SIM).

A beam alignment method includes receiving, at a current location by using a plurality of receive beams, a transmit beam from a network device, and determining reference signal received power (RSRP) of each of the plurality of receive beams; selecting an optimal receive beam from the plurality of receive beams based on the RSRP; determining, based on the optimal receive beam, a rotation angle and a rotation direction for a terminal device to align a peak direction beam with the transmit beam; and adjusting a location of the terminal device based on the rotation angle and the rotation direction, and forming an optimal beam pair by using the peak direction beam and the transmit beam at an adjusted location.

Apparatuses, methods, and systems are disclosed for bandwidth part (BWP) and beam switching. One apparatus includes a transceiver and a processor that receives a first configuration, where the first configuration contains a mapping between a set of beams and a set of BWPs in a cell. The processor jointly triggers beam and BWP switching based on a switching indication and according to the first configuration. The processor then communicates, via the transceiver, with a radio access network (RAN) using a new beam and a new BWP in response to the beam and BWP switching.

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for beam selection and codebook learning techniques based on XR perception information. A UE may receive sensor information indicative of a direction of a current serving beam relative to the UE. The UE may be configured to communicate with a base station based on a BPL associated with the direction of the current serving beam. The UE may perform a measurement for the base station and the UE to communicate over the BPL based on the sensor information indicating that the direction of the current serving beam relative to the UE is different from a previous serving beam direction relative to the UE.

According to embodiments, an apparatus receives beam failure detection reference signals on a plurality of beam pair links. The apparatus detects beam failure on at least some of the plurality of beam pair links. Responsive to a quantity of beam pair links on which the beam failure has been detected exceeding a predetermined quantity of beam pair links and being less than a total quantity of the plurality of beam pair links, the apparatus establishes a new beam pair link on a candidate beam.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE, reference signals using transmit (Tx) beams of the first UE based at least in part on a Tx beam sweeping, wherein self-interference measurements associated with the first UE are based at least in part on the reference signals. The first UE may transmit, to the second UE, an indication of candidate full duplex Tx-Rx beam pairs, wherein the candidate full duplex Tx-Rx beam pairs are based at least in part on the self-interference measurements. The first UE may receive, from the second UE, an indication of a full duplex Tx-Rx beam pair selection from the candidate full duplex Tx-Rx beam pairs. Numerous other aspects are described.

Aspects of the subject disclosure may include, for example, forming one or more downlink (DL) beams associated with subarrays of an antenna, performing signal transmissions using the one or more DL beams, and performing polarization adjusting for signals associated with the one or more DL beams such that each of the signals is oriented in a particular polarization, thereby improving signal reception by user equipment (UEs) associated with the one or more DL beams. Other embodiments are disclosed.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain synchronization with a primary cell (PCell) of a wireless network. The UE may receive an indication to activate a secondary cell (SCell) of the wireless network. The UE may receive a reference signal (RS) of the SCell, reception of the RS of the SCell, based at least in part on obtaining synchronization with the PCell, comprising one or more of: using a reduced candidate beams list for an initial beam search or using a reduced time domain range for receiving the RS of the SCell. The UE may communicate via the SCell based at least in part on synchronization with the SCell and using a beam pair obtained using the RS of the SCell. Numerous other aspects are described.