CHANNEL STATE INFORMATION (CSI) REPORTING FOR CARRIER AGGREGATION

摘要

Channel state information (CSI) feedback of common CSI components is discussed. An example user equipment (UE) includes a receiver circuit, processor, and transmitter circuit. The receiver circuit is configured to receive CSI configuration information for a plurality of downlink (DL) cells that indicates a first group of two or more of the DL cells and at least one CSI component designated for common reporting for the first group. The processor is configured to calculate a group value for each of the at least one CSI components designated for common reporting for the first group and selectively calculate, for each DL cell of the first group, individual values for any CSI components not designated for common reporting for the first group. The transmitter circuit is configured to transmit the group value for each of the designated CSI components and the individual values for any additional CSI components.