Scheduling multiple downlink transmissions
Methods and apparatuses for scheduling multiple downlink transmissions. A method for operating a user equipment to provide hybrid automatic repeat request acknowledgement (HARQ-ACK) information includes receiving information for a first HARQ-ACK codebook type and a second HARQ-ACK codebook type and information for a first set of cells and a second set of cells. The method further includes generating a first HARQ-ACK codebook, according to the first HARQ-ACK codebook type, that includes first HARQ-ACK information associated with first receptions on cells from the first set of cells; a second HARQ-ACK codebook, according to the second HARQ-ACK codebook type, that includes second HARQ-ACK information associated with second receptions on cells from the second set of cells; and a HARQ-ACK codebook by appending the second HARQ-ACK codebook to the first HARQ-ACK codebook. The method further includes transmitting a channel that provides the HARQ-ACK codebook.
1. A method for providing hybrid automatic repeat request acknowledgement (HARQ-ACK) information, the method comprising:
receiving:
information for a first HARQ-ACK codebook type and a second HARQ-ACK codebook type, and
information for a first set of cells and a second set of cells;
generating:
a first HARQ-ACK codebook, according to the first HARQ-ACK codebook type, that includes first HARQ-ACK information associated with first receptions on cells from the first set of cells,
a second HARQ-ACK codebook, according to the second HARQ-ACK codebook type, that includes second HARQ-ACK information associated with second receptions on cells from the second set of cells, and
a HARQ-ACK codebook by appending the second HARQ-ACK codebook to the first HARQ-ACK codebook; and
transmitting a channel that provides the HARQ-ACK codebook.
2. The method of claim 1 , further comprising:
receiving an indication to change an active bandwidth part (BWP) of a cell, from the first set of cells, to a dormant BWP,
wherein generating the first HARQ-ACK codebook further comprises generating the first HARQ-ACK codebook by excluding the cell from the first set of cells.
3. The method of claim 1 , further comprising:
receiving control information that includes a field with value indicating a subset of cells from the first set of cells,
wherein generating the first HARQ-ACK codebook comprises generating the first HARQ-ACK codebook by excluding the subset of cells.
4. The method of claim 1 , further comprising:
receiving a downlink control information (DCI) format scheduling a reception of a physical downlink shared channel (PDSCH), wherein:
the DCI format includes a downlink assignment indication (DAI) field when the PDSCH reception is on a cell from the second set of cells, and
the DCI format do1es not include the DAI field when the PDSCH reception is on a cell from the first set of cells.
5. The method of claim 1 , wherein:
the second HARQ-ACK codebook includes more than one HARQ-ACK sub-codebooks; and
the more than one HARQ-ACK sub-codebooks are associated with respective more than one subsets of cells from the second set of cells.
6. The method of claim 1 , further comprising:
receiving:
a downlink control information (DCI) format scheduling reception of a number of physical downlink control channels (PDCCHs) over a respective number of slots on a cell from the first set of cells or from the second set of cells,
one of the PDCCHs when the number of slots is one; and
only PDSCHs that do not include uplink symbols in respective slots when the number of slots is more than one.
7. The method of claim 1 , further comprising:
receiving:
a downlink control information (DCI) format scheduling reception of a number of physical downlink control channels (PDCCHs) over a respective number of slots on a cell from the first set of cells or from the second set of cells, wherein the DCI format includes a field indicating a rate matching pattern; and
the number of PDCCHs according to the rate matching pattern in every slot from the number of slots.
8. A user equipment (UE) comprising:
a transceiver configured to receive:
information for a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type and a second HARQ-ACK codebook type, and
information for a first set of cells and a second set of cells; and
a processor operably coupled to the transceiver, the processor configured to generate:
a first HARQ-ACK codebook, according to the first HARQ-ACK codebook type, that includes first HARQ-ACK information associated with first receptions on cells from the first set of cells,
a second HARQ-ACK codebook, according to the second HARQ-ACK codebook type, that includes second HARQ-ACK information associated with second receptions on cells from the second set of cells, and
a HARQ-ACK codebook by appending the second HARQ-ACK codebook to the first HARQ-ACK codebook,
wherein the transceiver is further configured to transmit a channel that provides the HARQ-ACK codebook.
9. The UE of claim 8 , wherein:
the transceiver is further configured to receive an indication to change an active bandwidth part (BWP) of a cell, from the first set of cells, to a dormant BWP; and
the processor is further configured to generate the first HARQ-ACK codebook by excluding the cell from the first set of cells.
10. The UE of claim 8 , wherein:
the transceiver is further configured to receive control information that includes a field with value indicating a subset of cells from the first set of cells; and
the processor is further configured to generate the first HARQ-ACK codebook by excluding the subset of cells.
11. The UE of claim 8 , wherein:
the transceiver is further configured to receive a downlink control information (DCI) format scheduling a reception of a physical downlink shared channel (PDSCH),
the DCI format includes a downlink assignment indication (DAI) field when the PDSCH reception is on a cell from the second set of cells, and
the DCI format does not include the DAI field when the PDSCH reception is on a cell from the first set of cells.
12. The UE of claim 8 , wherein:
the second HARQ-ACK codebook includes more than one HARQ-ACK sub-codebooks; and
the more than one HARQ-ACK sub-codebooks are associated with respective more than one subsets of cells from the second set of cells.
13. The UE of claim 8 , wherein the transceiver is further configured to receive:
a downlink control information (DCI) format scheduling reception of a number of physical downlink control channels (PDCCHs) over a respective number of slots on a cell from the first set of cells or from the second set of cells,
one of the PDCCHs when the number of slots is one; and
only PDSCHs that do not include uplink symbols in respective slots when the number of slots is more than one.
14. The UE of claim 8 , wherein the transceiver is further configured to receive:
a downlink control information (DCI) format scheduling reception of a number of physical downlink control channels (PDCCHs) over a respective number of slots on a cell from the first set of cells or from the second set of cells, wherein the DCI format includes a field indicating a rate matching pattern; and
the number of PDCCHs according to the rate matching pattern in every slot from the number of slots.
15. A base station comprising:
a transceiver configured to:
transmit:
information for a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type and a second HARQ-ACK codebook type, and
information for a first set of cells and a second set of cells; and
receive a channel that provides a HARQ-ACK codebook; and
a processor operably coupled to the transceiver, the processor configured to identify from the HARQ-ACK codebook:
a first HARQ-ACK codebook, according to the first HARQ-ACK codebook type, that includes first HARQ-ACK information associated with first transmissions on cells from the first set of cells, and
a second HARQ-ACK codebook, according to the second HARQ-ACK codebook type, that includes second HARQ-ACK information associated with second transmissions on cells from the second set of cells.
16. The base station of claim 15 , wherein:
the transceiver is further configured to transmit an indication to change an active bandwidth part (BWP) of a cell, from the first set of cells, to a dormant BWP; and
the processor is further configured to identify the first HARQ-ACK codebook by excluding the cell from the first set of cells.
17. The base station of claim 15 , wherein:
the transceiver is further configured to transmit control information that includes a field with value indicating a subset of cells from the first set of cells; and
the processor is further configured to identify the first HARQ-ACK codebook by excluding the subset of cells.
18. The base station of claim 15 , wherein:
the transceiver is further configured to transmit a downlink control information (DCI) format scheduling a transmission of a physical downlink shared channel (PDSCH),
the DCI format includes a downlink assignment indication (DAI) field when the PDSCH reception is on a cell from the second set of cells, and
the DCI format does not include the DAI field when the PDSCH reception is on a cell from the first set of cells.
19. The base station of claim 15 , wherein:
the second HARQ-ACK codebook includes more than one HARQ-ACK sub-codebooks; and
the more than one HARQ-ACK sub-codebooks are associated with respective more than one subsets of cells from the second set of cells.
20. The base station of claim 15 , wherein the transceiver is further configured to transmit:
a downlink control information (DCI) format scheduling transmission of a number of physical downlink control channels (PDCCHs) over a respective number of slots on a cell from the first set of cells or from the second set of cells, wherein the DCI format includes a field indicating a rate matching pattern; and
the number of PDCCHs according to the rate matching pattern in every slot from the number of slots.