Acknowledgement information for multi-cell scheduling
Apparatuses and methods for acknowledgement information for multi-cell scheduling in a wireless communication system. A method of a user equipment (UE) includes receiving first information for a set of cells and second information for first time-domain resource allocation (TDRA) tables. The first TDRA tables correspond to respective first cells from the set of cells. An entry of a TDRA table from the first TDRA tables indicates a time resource for a physical downlink shared channel (PDSCH) reception on a cell from the first cells. The method further includes identifying a second TDRA table, determining acknowledgment information corresponding to the set of cells based on a union of rows of the first TDRA tables and the second TDRA table, and transmitting a physical uplink control channel (PUCCH) with the acknowledgment information. An entry of the second TDRA table indicates time resources for receptions of first PDSCHs on the set of cells.
1 . A method comprising:
receiving:
first information for a set of cells,
second information for first time-domain resource allocation (TDRA) tables, corresponding to respective cells from the set of cells, wherein:
a first TDRA table, from the first TDRA tables, corresponds to a cell from the set of cells, and
entries of the first TDRA table indicate respective first time resources for receptions of respective first physical downlink shared channels (PDSCHs) on the cell, and
third information for a second TDRA table corresponding to the set of cells, wherein an entry of the second TDRA table indicates second time resources for receptions of second PDSCHs on the set of cells;
determining acknowledgment information corresponding to the set of cells based on rows of the first TDRA tables; and
transmitting a physical uplink control channel (PUCCH) with the acknowledgment information.
2 . The method of claim 1 , wherein:
the second time resources include a time resource that corresponds to a PDSCH, from the second PDSCHs, on the cell, and
the time resource is among the first time resources indicated by entries of the first TDRA table.
3 . The method of claim 1 , wherein acknowledgment information corresponding to the second PDSCHs have a same priority level.
4 . The method of claim 1 , wherein the second PDSCHs have a same sub-carrier spacing (SCS) and a same cyclic prefix.
5 . The method of claim 1 , further comprising:
receiving fourth information indicating a first set of downlink-data-to-acknowledgment slot timing (K1) values, wherein a K1 value from the first set of K1 values is indicated by a first downlink control information (DCI) format scheduling the receptions of the second PDSCHs on the set of cells;
receiving the second PDSCHs; and
determining, with reference to slots of PUCCH transmissions, a slot for the PUCCH transmission to be after a slot of a reference PDSCH, from the second PDSCHs, by a number of slots indicated by the K1 value,
wherein the reference PDSCH is a PDSCH that ends last.
6 . The method of claim 1 , wherein the set of cells are in a same PUCCH group.
7 . A user equipment (UE) comprising:
a transceiver configured to receive:
first information for a set of cells,
second information for first time-domain resource allocation (TDRA) tables, corresponding to respective cells from the set of cells, wherein:
a first TDRA table, from the first TDRA tables, corresponds to a cell from the set of cells, and
entries of the first TDRA table indicate respective first time resources for receptions of respective first physical downlink shared channels (PDSCHs) on the cell, and
third information for a second TDRA table corresponding to the set of cells, wherein an entry of the second TDRA table indicates second time resources for receptions of second PDSCHs on the set of cells; and
a processor operably coupled to the transceiver, the processor configured to determine acknowledgment information corresponding to the set of cells based on rows of the first TDRA tables,
wherein the transceiver is further configured to transmit a physical uplink control channel (PUCCH) with the acknowledgment information.
8 . The UE of claim 7 , wherein:
the second time resources include a time resource that corresponds to a PDSCH, from the second PDSCHs, on the cell, and
the time resource is among the first time resources indicated by entries of the first TDRA table.
9 . The UE of claim 7 , wherein acknowledgment information corresponding to the second PDSCHs have a same priority level.
10 . The UE of claim 7 , wherein the second PDSCHs have a same sub-carrier spacing (SCS) and a same cyclic prefix.
11 . The UE of claim 7 , wherein:
the transceiver is further configured to receive:
fourth information indicating a first set of downlink-data-to-acknowledgment slot timing (K1) values, wherein a K1 value from the first set of K1 values is indicated by a first downlink control information (DCI) format scheduling the receptions of the second PDSCHs on the set of cells, and
the second PDSCHs;
the processor is further configured to determine, with reference to slots of PUCCH transmissions, a slot for the PUCCH transmission to be after a slot of a reference PDSCH reception, from the first second PDSCHs, by a number of slots indicated by the K1 value; and
the reference PDSCH is a PDSCH that ends last.
12 . The UE of claim 7 , wherein the set of cells are in a same PUCCH group.
13 . A base station comprising:
a transceiver configured to:
transmit first information for a set of cells,
transmit second information for first time-domain resource allocation (TDRA) tables, corresponding to respective cells from the set of cells, wherein:
a first TDRA table, from the first TDRA tables, corresponds to a cell from the set of cells, and
entries of the first TDRA table indicate respective first time resources for transmissions of respective first physical downlink shared channels (PDSCHs) on the cell,
transmit third information for a second TDRA table corresponding to the set of cells, wherein an entry of the second TDRA table indicates second time resources for transmissions of second PDSCHs on the set of cells, and
receive a physical uplink control channel (PUCCH) with acknowledgment information; and
a processor operably coupled to the transceiver, the processor configured to determine the acknowledgment information corresponding to the set of cells based on rows of the first TDRA tables.
14 . The base station of claim 13 , wherein:
the second time resources include a time resource that corresponds to a PDSCH, from the second PDSCHs, on the cell, and
the time resource is among the first time resources indicated by entries of the first TDRA table.
15 . The base station of claim 13 , wherein acknowledgment information corresponding to the second PDSCHs have a same priority level.
16 . The base station of claim 13 , wherein the second PDSCHs have a same sub-carrier spacing (SCS) and a same cyclic prefix.
17 . The base station of claim 13 , wherein:
the transceiver is further configured to transmit:
fourth information indicating a first set of downlink-data-to-acknowledgment slot timing (K1) values, wherein a K1 value from the first set of K1 values is indicated by a first downlink control information (DCI) format scheduling the transmissions of the second PDSCHs on the set of cells, and
the second PDSCHs;
the processor is further configured to determine, with reference to slots of PUCCH receptions, a slot for the PUCCH reception to be after a slot of a reference PDSCH transmission, from the second PDSCHs, by a number of slots indicated by the K1 value; and
the reference PDSCH is a PDSCH that ends last.
18 . The base station of claim 17 , wherein the first set of K1 values is same as a second set of K1 values corresponding to second DCI formats each scheduling a transmission of a PDSCH from the first PDSCHs.
19 . The method of claim 5 , wherein the first set of K1 values is same as a second set of K1 values corresponding to second DCI formats each scheduling a reception of a PDSCH from the first PDSCHs.
20 . The UE of claim 11 , wherein the first set of K1 values is same as a second set of K1 values corresponding to second DCI formats each scheduling a reception of a PDSCH from the first PDSCHs.