Sub-Chain Beam for mmWave Devices: A Trade-off between Power Saving and Beam Correspondence

Jianhua Mo, Daehee Park, Boon Loong Ng +4

Beam correspondence, or downlink-uplink (DL-UL) beam reciprocity, refers to the assumption that the best beams in the DL are also the best beams in the UL. This is an important ass…