TECHNIQUES FOR BEAM SHAPING AT A MILLIMETER WAVE BASE STATION AND FAST ANTENNA SUBARRAY SELECTION AT A WIRELESS DEVICE

摘要

Methods, systems, and devices are described for wireless communication in user equipment (UE). A wireless communication system may improve UE discovery latency by dynamically selecting and switching beamforming codebooks in millimeter wave base stations and wireless devices. Selecting the optimal beamforming codebook may allow the wireless communication system to improve link margins between base stations without compromising resources. In some examples, the wireless device may determine whether received signals from a millimeter wave base station meet established signal-to-noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternatively, the wireless device may also signal the selected beam codebook to a millimeter wave base station and instruct the millimeter wave base station to adjust its codebook based on the selection.