9 Physical downlink control channel procedures

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

If the UE is configured with a SCG, the UE shall apply the procedures described in this clause for both MCG and SCG

– When the procedures are applied for MCG, the terms ‘secondary cell’, ‘secondary cells’ , ‘serving cell’, ‘serving cells’ in this clause refer to secondary cell, secondary cells, serving cell, serving cells belonging to the MCG respectively.

– When the procedures are applied for SCG, the terms ‘secondary cell’, ‘secondary cells’, ‘serving cell’, ‘serving cells’ in this clause refer to secondary cell, secondary cells (not including PSCell), serving cell, serving cells belonging to the SCG respectively. The term ‘primary cell’ in this clause refers to the PSCell of the SCG.

If a UE is configured with a LAA Scell, the UE shall apply the procedures described in this clause assuming frame structure type 1 for the LAA Scell unless stated otherwise.

For a UE configured with EN-DC/NE-DC and more than one serving cell, if primary cell frame structure type 1 and if the UE is configured with tdm-PatternConfig/tdm-PatternConfigNE-DC for the primary cell, or if the UE is configured with tdm-PatternConfig2 for a primary cell with EN-DC, the UE is not expected to be configured with carrier indicator field in any of the serving cells.