A user equipment (UE) is described. The UE may include receiving circuitry configured to receive a radio resource control (RRC) message comprising first information used for indicating a first list of Transmission Configuration Indicator (TCI) state(s). The receiving circuitry may also be configured to receive an RRC message comprising second information used for indicating a second list of Transmission Configuration Indicator (TCI) state(s). The receiving circuitry may also be configured to receive a first media access control (MAC) Control Element (CE) message comprising third information used for indicating one or more TCI state(s) for physical downlink control channel (PDCCH) from the first list and/or the second list. The receiving circuitry may also be configured to receive the physical downlink control channel (PDCCH) according to the third information.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a beam configuration for each physical cell identifier (PCI) of a set of candidate PCIs. A beam configuration for a PCI may include, for example, transmission configuration indicator (TCI) states for downlink channels and reference signals or spatial relations for uplink channels and reference signals. The UE may receive an indication of a selected subset of PCIs of the set of candidate PCIs. The UE may apply the beam configuration for each PCI of the selected subset of PCIs based on the indication of the selected subset of PCIs. The UE may then communicate according to the beam configurations for the selected subset of PCIs.

Aspects of the subject disclosure may include, for example, obtaining compressed sounding reference signal (SRS) information associated with a user end device from a distributed unit device. The distributed unit device compresses SRS information utilizing a first compression algorithm resulting in the compressed SRS information. Further embodiments include decompressing the compressed SRS information utilizing a first decompression algorithm resulting in the SRS information and determining SRS channel estimation based on the SRS information. Additional embodiments include determining a group of beamforming weights based on the SRS channel estimation, and adjusting an antenna array according to the group of beamforming weights. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, a system comprising a distributed unit (DU) configured to generate sounding reference signal (SRS)-based beams, and a remote unit (RU) communicatively coupled with the DU over a fronthaul, wherein the RU is configured to generate demodulation reference signal (DMRS)-based beams and perform digital beamforming for an uplink using the DMRS-based beams in combination with the SRS-based beams. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, a device having a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations including: receiving sounding reference signal (SRS) data for an uplink transmission of a user equipment (UE) from a remote unit (RU); generating SRS-based beam weights; transmitting the SRS-based beam weights to the RU; instructing the RU to generate DMRS-based beam weights and send demodulation reference signal (DMRS) channel estimates from subsequent uplink transmissions of the UE; and receiving the DMRS channel estimates from the RU. Other embodiments are disclosed.

This disclosure relates to channel state information reference signal configuration, precoding, and transmission, and channel state information feedback configuration and transmission in multiple-input and multiple-output (MIMO) wireless communication systems. The various embodiments provide channel state information reference signal and feedback schemes which facilitate a decrease of the amount of information that need to be transmitted and reduce communication resource overhead for channel state information configuration and feedback.

A communication device (20) includes a sensing unit (231) that performs channel sensing in an unlicensed band, and a notification unit (232) that notifies another communication device of space domain information, as channel occupancy information indicating that channel occupancy is performed when the sensing succeeds.

Embodiments described herein provide efficient beam pattern feedback from a user equipment (UE) to a receiving device to help reduce overhead of providing beam pattern information for position determination while maintaining high position determination accuracy. Embodiments include providing beam weights and template elemental game patterns, an elemental gain formula and parameters, and/or template beam patterns with boresight to a remote device, enabling the remote device to determine beam shape.

Precoding matrix computations for a large number of antenna arrays can be used to generate efficiencies within a wireless network. Utilizing network topology and context data in conjunction with known available network resources and mobile device measurements can facilitate gains in power and spectral efficiency and reduction in computation complexity posed by current procedures. To take advantage of multiple paths, the precoding matrix can be known at the radio units for each mobile device.

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for use in receiving devices employing at least one iterative process for decoding messages. In certain example aspects, a receiving device may comprise a user equipment (UE) or other like device that may be configured to support device-to-device (D2D) communications, such as vehicle-to-vehicle (V2V) communications, or the like.