QUALCOMM Incorporated
Port group indication and port subsets in a CSI-RS resource for new radio (NR)

Abstract:

Aspects of the present disclosure provide channel state information reference signal (CSI-RS) resources that specify the resource elements (REs) on which a CSI-RS may be transmitted, along with a set of ports at the base station from which the CSI-RS may be transmitted. Within the set of ports for particular CSI-RS resource, one or more port groups may further be configured. Each port group identifies a group of ports associated with a channel. In some examples, a port group identifies the ports on which CSI may be measured. Other ports within the set of ports that are outside the port group may be utilized for interference measurement.