5G: CSI RS Configuration for Time offset between PDCCH and CSI-RS Signal
Channel: Wireless Explained
Date: 2023-03-03

In 5G, CSI-RS signal is used for channel measurement and beam tracking.
This video describes the RRC configuration for the time offset between PDCCH and its corresponding CSI-RS. 

▬ Contents of this video  ▬▬▬▬▬▬▬▬▬▬

0:00 - Problem Statement
2:21 - CSI request 
2:38 - CSI-AperiodicTriggerStateList
3:23 - associatedReportConfigInfoList
3:34 - reportConfigID
3:50 - csi-ReportConfigToAddModList
4:13 - resourcesForChannelMeasurement, csi-ResourceConfigToAddModList, csi-ResourceConfigID
4:39 - csi-RS-ResourceSetList, nzp-CSI-RS-ResourceSetToAddModList, nzp-CSI-ResourceSetID
5:19 - nzp-CSI-RS-Resources, nzp-CSI-RS-ResourceToAddModList 
5:58 - aperiodicTriggeringOffset, firstOFDMSymbolInTimeDomain
6:11 - Slot duration for various subcarrier spacing
6:29 - An example use case
7:28 - An example illustration

References:
1. ShareTechNote: https://www.sharetechnote.com/html/5G/5G_CSI_Report.html
2. 3GPP ETSI TS 138 508-1
3. Book: Chris Johnson (2019), "5G New Radio in Bullets" 

Music: Erik SATIE - Gymnopedies 1