8 Physical uplink shared channel related 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 for UL transmissions, 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 serving cell frame structure type 1, if the UE is configured with tdm-PatternConfig/tdm-PatternConfigNE-DC for the serving cell, the UE is not expected to transmit any uplink physical channel or signal in the serving cell on subframes other than offset-UL subframes, where the offset-UL subframes are determined by applying an offset value given by harq-Offset-r15 to the subframes denoted as uplink in the UL/DL configuration tdm-PatternConfig/tdm-PatternConfigNE-DC.

For a UE configured with EN-DC with primary cell frame structure type 1, if the UE is configured with tdm-PatternConfig2 for a serving cell, and if the UE indicates a capability fdd-PCellUL-TX-AllUL-Subframe-r16 (as specified in [11]), the UE transmits any uplink physical channel or signal without associated DCI if configured, in the serving cell on any uplink subframes. Otherwise, if the UE is configured with tdm-PatternConfig2 for the serving cell and if the UE does not indicate a capability fdd-PCellUL-TX-AllUL-Subframe-r16, the UE is not expected to transmit any uplink physical channel or signal without associated DCI except for PRACH in the serving cell on subframes other than offset-UL subframes, where the offset-UL subframes are determined by applying an offset value given by harq-Offset-r16 to the subframes denoted as uplink in the UL/DL configuration tdm-PatternConfig2.

For a UE configured with EN-DC with primary cell frame structure type 2, if the UE is configured with tdm-PatternConfig2 for a serving cell, and if the UE indicates a capability tdd-PCellUL-TX-AllUL-Subframe-r16 (as specified in [11]), the UE transmits any uplink physical channel or signal without associated DCI if configured, in the serving cell on any uplink subframes. Otherwise, if the UE is configured with tdm-PatternConfig2 for the serving cell and if the UE does not indicate a capability tdd-PCellUL-TX-AllUL-Subframe-r16, the UE is not expected to transmit any uplink physical channel or signal without associated DCI except for PRACH in the serving cell on subframes other than offset-UL subframes, where the offset-UL subframes are determined by applying an offset value given by harq-Offset-r16 to the subframes denoted as uplink in the UL/DL configuration tdm-PatternConfig2.

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

For a non-BL/CE UE, and for FDD and transmission mode 1 and a cell that is not a LAA SCell, there shall be 16 uplink HARQ processes per serving cell configured with higher layer parameter ul-STTI-Length, otherwise 8 uplink HARQ processes per serving cell for non-subframe bundling operation, i.e. normal HARQ operation, and 3 uplink HARQ processes for subframe bundling operation when parameter e-HARQ-Pattern-r12 is set to TRUE and 4 uplink HARQ processes for subframe bundling operation otherwise. For a non-BL/CE UE, and for FDD and transmission mode 2 configured for subframe-PUSCH and a cell that is not a LAA SCell, there shall be 32 uplink HARQ processes per serving cell configured with higher layer parameters ul-STTI-Length and shortProcessingTime, otherwise 16 uplink HARQ processes per serving cell for non-subframe bundling operation and there are two HARQ processes associated with a given subframe for subframe-PUSCH as described in [8]. The subframe bundling operation is configured by the parameter ttiBundling provided by higher layers.

For FDD and a BL/CE UE configured with CEModeA, there shall be at most 8 uplink HARQ processes per serving cell.

For FDD and a BL/CE UE configured with CEModeB, there shall be at most 4 uplink HARQ processes per serving cell if the UE is configured with higher layer parameter ce-PUSCH-MultiTB-Config, 2 uplink HARQ processes per serving cell otherwise.

For a BL/CE UE and PUSCH transmission using preconfigured uplink resource, there shall be 1 uplink HARQ process per serving cell.

For a LAA SCell, and transmission mode 1, there shall be 16 uplink HARQ processes. For a LAA SCell, and transmission mode 2, there shall be 32 uplink HARQ processes.

There shall be 16 uplink HARQ processes per TDD serving cell configured with higher layer parameter ul-STTI-Length.

In case higher layers configure the use of subframe bundling for FDD and TDD, the subframe bundling operation is only applied to UL-SCH, such that four consecutive uplink subframes are used.

A BL/CE UE is not expected to be configured with simultaneous PUSCH and PUCCH transmission.

Throughout this clause, for a BL/CE UE, the value of is given by,

– if the UE is configured with the higher layer parameter CellSpecificKoffset,

– where

is the parameter CellSpecificKoffset provided by higher layers, and

is the parameter UESpecificKoffset provided by higher layers, otherwise

– otherwise,

– .