A wireless communication method includes: storing antenna-pair set information and a first measurement result in association with each other for every positional-arrangement, the antenna-pair set information being information on a set of pairs of transmission antennas and reception antennas that achieves a best throughput for the positional-arrangement, the first measurement result being a measurement result of reception characteristics of a training signal transmitted from at least one of the plurality of transmission antennas; selecting current antenna-pair set information corresponding to a current positional-arrangement by comparing a second measurement result with the first measurement result stored, the second measurement result being a measurement result of reception characteristics of the training signal measured at the plurality of reception antennas in the current positional-arrangement; and establishing links between the plurality of transmission antennas and the respective plurality of reception antennas based on the current antenna-pair set information corresponding to the current positional-arrangement.

Techniques are described herein for a beam refinement procedure between a first communications device (e.g., base station) and a second communications device (e.g., user equipment (UE)) that uses long-term feedback information from the second communications device to maintain a beam pair link established for a downlink connection. The second communications device may transmit long-term feedback information to the first communications device in response to a request or a trigger event occurring. The long-term feedback information may be sensor information measured by the second communications device or uplink training symbols. The first communications device may localize a beam search of the beam refinement procedure using the long-term feedback information. The localized beam search may be an example of a device-specific search. The first communications device may also generate a long-term map of channel conditions based on the long-term feedback data. The long-term map may also be used to localize the search.

Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.

Methods, systems, and devices for updating beam-based communications are described. A base station may configure a user equipment (UE) with a set of beam management configurations, which may be used to modify (e.g., dynamically or periodically) beam-based communications. For example, the base station may indicate a beam configuration for utilization by the UE and the UE may switch to the indicated beam configuration or update a currently used beam configuration based on the indication. In another example, a set of beam configurations may be sequentially ordered, and the base station may indicate to the UE to use the next beam configuration in the sequence of beam configurations. The update to the beam configuration may be triggered based on a distance change (e.g., UE and base station getting closer or farther apart) or a reference signal measurement between the UE and the base station, among other factors.

A Motion Aware Scheduler (MAS) is configured to obtain, from a controller through an interface, Motion State Information (MSI) for a motion of at least one movable apparatus, also configured to obtain, from a physical layer of a radio node comprising the MAS, Channel State Information (CSI), also configured to associate the CSI and the MSI in order to obtain a mapping information, and also configured to store the mapping information in order to obtain a stored mapping information.

A wireless communication method includes: storing antenna-pair set information and a first measurement result in association with each other for every positional-arrangement, the antenna-pair set information being information on a set of pairs of transmission antennas and reception antennas that achieves a best throughput for the positional-arrangement, the first measurement result being a measurement result of reception characteristics of a training signal transmitted from at least one of the plurality of transmission antennas; selecting current antenna-pair set information corresponding to a current positional-arrangement by comparing a second measurement result with the first measurement result stored, the second measurement result being a measurement result of reception characteristics of the training signal measured at the plurality of reception antennas in the current positional-arrangement; and establishing links between the plurality of transmission antennas and the respective plurality of reception antennas based on the current antenna-pair set information corresponding to the current positional-arrangement.

Aspects of this disclosure provide techniques for detecting and recovering from beam-failure events. In some embodiments, motion sensor information generated by motion sensors on a UE is used to detect, predict, and/or recover from a beam failure event that results, or would otherwise result, from movement of the UE. The motion sensor information may be used to adjust a current beam direction used by the UE to transmit or receive a signal, or to determine a recommendation for adjusting a current beam direction of the base station. The motion sensor information may be generated by any sensor that detects a movement of the UE, such as a gyroscope, an accelerometer, a magnetometer, a global positioning system (GPS) sensor, a global navigation satellite system (GNSS) sensor, or any other device that detects a change in position/orientation of the UE.

Facilitating multi-slot frequency hopping can comprise generating configuration data associated with configuring a mobile device with a multi-slot operation, associated with slots of the mobile device, for sending uplink channel control data or traffic channel data. Additionally, facilitating multi-slot frequency hopping can comprise transmitting the configuration data to the mobile device, resulting in a multi-slot configuration of the mobile device, wherein the configuration data comprises hopping patterns to be used by the slots.

A communication method and device for an ultra-high-speed vehicle is disclosed. The communication device comprises: a processor for performing a radio resource control function for communication between a first mobile device and the communication device; a plurality of DAs positioned in a path of the first mobile device and transmitting or receiving a signal according to a control of the processor; and a memory for storing at least one command executed by the processor, wherein the at least one command is executed to configure a first sliding window including n DAs corresponding to a first position of the first mobile device, among the plurality of DAs, and perform communication with the first mobile device located at the first position by using the n DAs. Therefore, the performance of a communication system can be improved.

Systems and methods for selectively enabling antenna selection at a wireless device for uplink sounding reference signal transmission in a Time Division Duplexing (TDD) wireless communication system are disclosed. In some embodiments, a method of operation of a network node comprises making a determination as to whether to enable or disable antenna selection at a wireless device for transmission of uplink sounding reference signals based on: an estimated speed of movement of the wireless device; both the estimated speed and a Signal to Interference plus Noise Ratio (SINR) for one or more downlink channels to the wireless device; or the estimated speed, the SINR for the one or more downlink channels, and a rank used for downlink transmission to the wireless device. The method further comprises sending, to the wireless device, an indication that indicates whether the wireless device is to enable or disable antenna selection.