Primary and secondary downlink synchronization signals are used by the user equipment (UE) to obtain the cell identity and frame timing. The UE uses the demodulation reference signal (DM-RS) and the channel state information reference signal (CSI-RS) to aid channel estimation and to support measurements. For phase noise compensation, the UE uses the PDSCH phase tracking reference signal (PT-RS).
Generate multiple 5G NR synchronization signal blocks (SSBs) to form a synchronization signal burst (SS burst).
Perform channel estimation using CSI-RS symbols and indices mapped into a carrier resource grid.
Learn how to measure the CSI-RSRP, CSI-RSSI, and CSI-RSRQ using the CSI-RS.