Systems, methods, apparatuses, and computer program products for network controlled repeater forward link beam switch testing. A method may include transmitting an access link beam configuration to a network controlled repeater (NCR). The method may also include initiating, by the NCR, a beam switch operation based on implementation of the received access link beam configuration. The method may further include transmitting, by NCR, an access link beam based on the beam switch operation. In addition, the method may include measuring the received access link beam of the NCR. Further, the method may include determining test metrics based on the measuring. The method may also include verifying the beam switch operation based on the test metrics.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, for a UE beam refinement procedure, a reference signal via a first network node beam. The UE may receive, based at least in part on the UE beam refinement procedure, an indication of a switch to the first network node beam from a second network node beam. Numerous other aspects are described.

Method comprising: selecting a subset of one or more beam pairs among a set of beam pairs via which a terminal and a base station are associated, wherein for each of the beam pairs of the subset, a suitability of the respective beam pair is better than a suitability threshold; for each of the beam pairs of the subset: determining a respective set of at least two tones; performing a respective relative phase measurement based on the respective virtual wavelength to obtain a respective virtual phase difference; and at least one of reporting the respective set of at least two tones and the respective virtual phase difference to the base station; and estimating a respective distance between the terminal and a transmission reception point of the base station emitting the respective beam pair based on the respective virtual phase difference and the preliminary uncertainty region.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) or relay node may transmit a beam report indicating a polarization layer mismatch (achievable rates are different for the first and second polarizations, or positioning estimation accuracy is different for the first and second polarizations). The report may include an indication of an imbalance in signal strength, an estimation error for the two polarizations, one or more beam pairs that are not supported across the two polarizations, a preferred polarization, or a combination thereof. In response to the beam report, the network entity may adjust one or more parameters, and may transmit accordingly. A relay node may indicate non-co-located polarization array construction via capability information. The UE may then transmit feedback indicating a direction of steered beams at the UE. The relay node performs relay operations based on transmission characteristics selected from the beam direction information.

Various example embodiments relate to devices and methods supporting beam selection adaptive to user equipment distribution. A network device may be configured to sweep a first set of beams predefined for a cell, determine one or more supplement beams for one or more user equipments in the cell, and sweep at least a portion of the one or more supplement beams. The one or more supplement beams are selected from a second set of beams different from the first set of beams.

A method of wireless communication at a first network node is disclosed herein. The method includes performing beam training with a RIS-MT array, wherein the RIS-MT array is associated with a RIS array. The method includes identifying, based on the beam training, a first beam for communication with the RIS-MT array. The method includes transmitting communication to the RIS array for reflection or refraction to a wireless device using a second beam based, at least in part, on the first beam identified for the RIS-MT array.

Provided is a base station including: an antenna that emits at least one searching radio beam for searching for a communication terminal and a communication radio beam for communicating with a communication terminal; and at least one processor that executes a transmission process of simultaneously transmitting, from the antenna, a plurality of searching radio beams that are oriented in directions which are different from each other, a reception process of receiving radio waves transmitted from a communication terminal in accordance with the plurality of searching radio beams simultaneously transmitted in the transmission process, and a communication process of communicating, with use of the communication radio beam, with the communication terminal that transmitted the radio waves which were received in the reception process.

A method of a transmitting node may comprise: exchanging, with a receiving node, configuration information for beam direction search; generating DoA measurement request frames based on the configuration information; transmitting the DoA measurement request frames to the receiving node through a coarse beam in a partitioned area selected among partitioned areas within a bean search range, in a transmission occasion of the DoA measurement request frames based on the configuration information; receiving a DoA measurement response message from the receiving node; identifying whether the receiving node is located within the selected partitioned area based on DoA information included in the DoA measurement response message; and in response to the receiving node being located within the selected partitioned area, changing a beam direction for beam alignment based on the DoA information.

A beam pattern processing device includes: one or more memories; a transceiver; and one or more processors, communicatively coupled to the one or more memories and the transceiver. The one or more processors are configured to: configure a beam pattern information to include a sampling method of a plurality of sampling methods defining a sampling grid; send a request, including the beam pattern information, for a sampled beam pattern of the network device; and receive the sampled beam pattern obtained based on the beam pattern information.

Beamforming methods and systems include determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station. A set of scanning beams is selected based on the tradeoff curve. Devices around the base station are scanned for using the set of scanning beams. A set of transmission beams is selected for communications with the devices based on information received during the scanning. The set of transmission beams are used for transmission with a beamforming transmitter.