EVOLVED NODE-B (ENB), USER EQUIPMENT (UE) AND METHODS FOR ADAPTIVE BEAMFORMING AND CHANNEL STATE INFORMATION (CSI) REPORTING

摘要

Embodiments of an Evolved Node-B (eNB), User Equipment (UE) and methods for communication are generally described herein. The eNB may generate a plurality of adaptive codebooks based on a base codebook. Each adaptive codebook may be generated for a different beam-width for directional transmissions by an antenna array. The adaptive codebooks may be generated based at least partly on matrix products of a first matrix based at least partly on a configurable broadening factor and a second matrix that includes codewords of the base codebook. A predetermined plurality of broadening factor values may be used in the first matrix to produce the different beam-widths for the adaptive codebooks.