CSI-RS RESOURCE CDM GROUP REINTERPRETATION

摘要

A method by a network node for configuring a wireless device to report Channel State Information (CSI) includes computing an N-port Channel State Information-Reference Signal (CSI-RS) resource configuration. The N-port CSI-RS resource configuration includes a number of antenna ports, N, without Code Division Multiplexing (CDM), and N is greater than one. At least one antenna port associated with the N-port CSI-RS resource configuration overlaps with at least one antenna port group associated with an M-port CSI-RS resource configuration with CDM. The network node transmits CSI-RS over the N-port CSI-RS resource configuration to a wireless device for CSI computation and receives CSI from the wireless device according to the N-port CSI-RS resource configuration.