An apparatus for wireless communication at a user equipment, UE, comprising: a memory; and one or more processors, coupled to the memory, configured to: receive a configuration that indicates a set of frequency components for carrier aggregation and that indicates multiple sets of channel state information reference signals, CSI-RSs, or sounding reference signals, SRSs, wherein different sets of CSI-RSs or SRSs, of the multiple sets of CSI-RSs or SRSs, correspond to different subsets of frequency components included in the set of frequency components; monitor for one or more CSI-RSs or SRSs, corresponding to a subset of frequency components included in the set of frequency components, based at least in part on the configuration, characterized in that the one or more processors are further configured to: receive an indication of a set of CSI-RS or SRS resources that are included in different sub-carriers of a single orthogonal frequency division multiplexing, OFDM, symbol, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within the single OFDM symbol using a single radio frequency chain of the UE; receive an indication of a set of CSI-RS or SRS resources that are to be transmitted in multiple sub-carriers across multiple OFDM symbols, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within each OFDM symbol, of the multiple OFDM symbols, using different radio frequency chains of the UE for different OFDM symbols; or receive an indication of a set of CSI-RS or SRS resources that are to be transmitted in multiple sub-carriers and multiple beams across multiple OFDM symbols, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within each OFDM symbol, of the multiple OFDM symbols, using different radio frequency chains of the UE for different OFDM symbols; and wherein each radio frequency chain is associated with a set of beam weights. a memory; and one or more processors, coupled to the memory, configured to: receive a configuration that indicates a set of frequency components for carrier aggregation and that indicates multiple sets of channel state information reference signals, CSI-RSs, or sounding reference signals, SRSs, wherein different sets of CSI-RSs or SRSs, of the multiple sets of CSI-RSs or SRSs, correspond to different subsets of frequency components included in the set of frequency components; monitor for one or more CSI-RSs or SRSs, corresponding to a subset of frequency components included in the set of frequency components, based at least in part on the configuration, receive a configuration that indicates a set of frequency components for carrier aggregation and that indicates multiple sets of channel state information reference signals, CSI-RSs, or sounding reference signals, SRSs, wherein different sets of CSI-RSs or SRSs, of the multiple sets of CSI-RSs or SRSs, correspond to different subsets of frequency components included in the set of frequency components; monitor for one or more CSI-RSs or SRSs, corresponding to a subset of frequency components included in the set of frequency components, based at least in part on the configuration, receive an indication of a set of CSI-RS or SRS resources that are included in different sub-carriers of a single orthogonal frequency division multiplexing, OFDM, symbol, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within the single OFDM symbol using a single radio frequency chain of the UE; receive an indication of a set of CSI-RS or SRS resources that are to be transmitted in multiple sub-carriers across multiple OFDM symbols, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within each OFDM symbol, of the multiple OFDM symbols, using different radio frequency chains of the UE for different OFDM symbols; or receive an indication of a set of CSI-RS or SRS resources that are to be transmitted in multiple sub-carriers and multiple beams across multiple OFDM symbols, and wherein the one or more processors, to monitor for the one or more CSI-RSs or SRSs, are configured to measure frequency variations within each OFDM symbol, of the multiple OFDM symbols, using different radio frequency chains of the UE for different OFDM symbols; and wherein each radio frequency chain is associated with a set of beam weights.