Transmission of control information for communication with multiple transmission-reception points
Methods and apparatuses for transmitting and receiving HARQ-ACK information. A method of operating a UE includes receiving: a configuration for a first group index for first control resource sets (CORESETs), physical downlink control channels (PDCCHs) in CORESETs, wherein the PDCCHs provide respective downlink control information (DCI) formats scheduling respective receptions of physical downlink shared channels (PDSCHs), and the PDSCHs corresponding to the PDCCHs. The method further includes determining HARQ-ACK information bits in response to a PDSCH reception. When a PDCCH reception is in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a first HARQ-ACK codebook. When the PDCCH reception is not in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a second HARQ-ACK codebook. The method further includes transmitting a first physical uplink control channel (PUCCH) with the first HARQ-ACK codebook and a second PUCCH with the second HARQ-ACK codebook.
1. A user equipment (UE) comprising:
a transceiver configured to receive:
a configuration for first control resource sets (CORESETs) and second CORESETs,
physical downlink control channels (PDCCHs) in the first or second CORESETs, wherein the PDCCHs provide respective downlink control information (DCI) formats scheduling respective receptions of physical downlink shared channels (PDSCHs), and
the PDSCHs corresponding to the PDCCHs; and
a processor operably coupled to the transceiver, the processor configured to determine hybrid automatic repeat request acknowledgement (HARQ-ACK) information bits in response to a PDSCH reception,
wherein:
when a PDCCH reception is in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a first HARQ-ACK codebook,
when the PDCCH reception is in a CORESET from the second CORESETs, the HARQ-ACK information bits are in a second HARQ-ACK codebook, and
the transceiver is further configured to transmit a first physical uplink control channel (PUCCH) with the first HARQ-ACK codebook and a second PUCCH with the second HARQ-ACK codebook.
2. The UE of claim 1 , wherein:
the transceiver is further configured to receive a first reference signal (RS) and a second RS;
the processor is further configured to determine:
a first pathloss using the first RS and a second pathloss using the second RS, and
a first power based on the first pathloss and a second power based on the second pathloss; and
the transceiver is further configured to transmit the first PUCCH with the first power and the second PUCCH with the second power.
3. The UE of claim 2 , wherein:
the processor is further configured to determine a first spatial setting from the first RS and a second spatial setting from the second RS; and
the transceiver is further configured to transmit the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting.
4. The UE of claim 2 , wherein:
the transceiver is further configured to receive a configuration for a first spatial setting and for a second spatial setting; and
the transceiver is further configured to transmit the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting.
5. The UE of claim 1 , wherein:
the PDCCH reception is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a first set of fields or a second set of fields,
the first set of fields includes a field indicating a spatial setting from a set of spatial settings,
the second set of fields does not include the field indicating the spatial setting,
the transceiver is further configured to receive the set of spatial settings,
the processor is further configured to determine the spatial setting for a transmission of the first PUCCH according to:
the field when the first DCI format includes the first set of fields, or
a first spatial setting from the set of spatial settings when the first DCI format includes the second set of fields, and
the transceiver is further configured to transmit the first PUCCH using the determined spatial setting.
6. The UE of claim 1 , wherein:
the processor is further configured to determine a first spatial setting for transmission of the first PUCCH and a second spatial setting for transmission of the second PUCCH; and
the transceiver is further configured to transmit the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting when the first PUCCH transmission and the second PUCCH transmission are separated by a predetermined time interval.
7. The UE of claim 1 , wherein:
the PDCCH reception is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a PUCCH resource indicator (PRI) field,
a value of the PRI field indicates a PUCCH resource that includes a set of parameters,
the set of parameters includes a spatial setting, and
the transceiver is further configured to transmit the first PUCCH according to first set of parameters.
8. The UE of claim 1 , wherein:
the PDCCH reception is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a counter downlink assignment index (DAI) field,
a value of the counter DAI field indicates a number of DCI formats,
the number of DCI formats is provided by PDCCH receptions in CORESETs from the first CORESETs,
HARQ-ACK information bits corresponding to the number of DCI formats are in the first HARQ-ACK codebook, and
HARQ-ACK information bits corresponding to the first DCI format are placed last in the first HARQ-ACK codebook.
9. A base station comprising:
a processor; and
a transceiver operably coupled to the processor, the transceiver configured to:
transmit a configuration for first control resource sets (CORESETs) and second CORESETs;
transmit physical downlink control channels (PDCCHs) in the first or second CORESETs, wherein the PDCCHs provide respective downlink control information (DCI) formats scheduling respective receptions of physical downlink shared channels (PDSCHs);
transmit the PDSCHs corresponding to the PDCCHs; and
receive a first physical uplink control channel (PUCCH) with a first hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook and a second PUCCH with a second HARQ-ACK codebook,
wherein:
the first and second HARQ-ACK codebooks provide HARQ-ACK information bits for the PDSCH transmissions,
when a PDCCH transmission is in a CORESET from the first CORESETs, HARQ-ACK information bits for a corresponding PDSCH transmission are in the first HARQ-ACK codebook, and
when the PDCCH transmission is in a CORESET from the second CORESETs, HARQ-ACK information bits for the corresponding PDSCH transmission are in the second HARQ-ACK codebook.
10. The base station of claim 9 , wherein the transceiver is further configured to:
transmit a configuration for a first spatial setting and for a second spatial setting; and
receive the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting.
11. The base station of claim 9 , wherein:
the PDCCH transmission is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a first set of fields or a second set of fields,
the first set of fields includes a field indicating a spatial setting from a set of spatial settings,
the second set of fields does not include the field indicating the spatial setting,
the processor is configured to determine a spatial setting for a reception of the first PUCCH according to:
the field when the first DCI format includes the first set of fields, or
a first spatial setting from the set of spatial settings when the first DCI format includes the second set of fields, and
the transceiver is further configured to:
transmit the set of spatial settings; and
receive the first PUCCH using the determined spatial setting.
12. The base station of claim 9 , wherein:
the PDCCH transmission is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a PUCCH resource indicator (PRI) field,
a value of the PRI field indicates a PUCCH resource that includes a set of parameters,
the set of parameters includes a spatial setting, and
the transceiver is further configured to receive the first PUCCH according to the set of parameters.
13. The base station of claim 9 , wherein:
the PDCCH transmission is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a counter downlink assignment index (DAI) field,
a value of the counter DAI field indicates a number of DCI formats,
the number of DCI formats is provided by PDCCH transmissions in CORESETs from the first CORESETs,
HARQ-ACK information bits corresponding to the number of DCI formats are in the first HARQ-ACK codebook, and
HARQ-ACK information bits corresponding to the first DCI format are placed last in the first HARQ-ACK codebook.
14. A method of a user equipment (UE) for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) information, the method comprising:
receiving:
a configuration for first control resource sets (CORESETs) and second CORESETs,
physical downlink control channels (PDCCHs) in the first or second CORESETs, wherein the PDCCHs provide respective downlink control information (DCI) formats scheduling respective receptions of physical downlink shared channels (PDSCHs), and
the PDSCHs corresponding to the PDCCHs;
determining HARQ-ACK information bits in response to a PDSCH reception, wherein:
when a PDCCH reception is in a CORESET from the first CORESETs, the HARQ-ACK information bits are in a first HARQ-ACK codebook, and
when the PDCCH reception is in a CORESET from the second CORESETs, the HARQ-ACK information bits are in a second HARQ-ACK codebook; and
transmitting a first physical uplink control channel (PUCCH) with the first HARQ-ACK codebook and a second PUCCH with the second HARQ-ACK codebook.
15. The method of claim 14 , further comprising:
receiving a first reference signal (RS) and a second RS; and
determining:
a first pathloss using the first RS and a second pathloss using the second RS, and
a first power based on the first pathloss and a second power based on the second pathloss,
wherein the transmitting further comprises transmitting the first PUCCH with the first power and the second PUCCH with the second power.
16. The method of claim 15 , further comprising:
determining a first spatial setting from the first RS and a second spatial setting from the second RS,
wherein the transmitting further comprises transmitting the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting.
17. The method of claim 15 , further comprising:
receiving a configuration for a first spatial setting and for a second spatial setting,
wherein the transmitting further comprises transmitting the first PUCCH using the first spatial setting and the second PUCCH using the second spatial setting.
18. The method of claim 14 , further comprising:
receiving a set of spatial settings; and
determining a first spatial setting for a transmission of the first PUCCH according to:
a field in a first set of fields when a first DCI format includes the first set of fields, and
a first spatial setting from the set of spatial settings when the first DCI format includes a second set of fields; and
wherein:
transmitting the PUCCH further comprises transmitting the first PUCCH using the first spatial setting,
the PDCCH reception is in the CORESET from the first CORESETs and provides the first DCI format,
the first DCI format includes the first set of fields or the second set of fields,
the first set of fields includes the field indicating a spatial setting from a set of spatial settings for PUCCH transmissions, and
the second set of fields does not include the field indicating the spatial setting.
19. The method of claim 14 , wherein:
transmitting the PUCCH further comprises transmitting the first PUCCH according to a set of parameters,
the PDCCH reception is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a PUCCH resource indicator (PRI) field,
a value of the PRI field indicates a PUCCH resource that includes the set of parameters, and
the set of parameters includes a spatial setting.
20. The method of claim 14 , wherein:
the PDCCH reception is in the CORESET from the first CORESETs and provides a first DCI format,
the first DCI format includes a counter downlink assignment index (DAI) field,
a value of the counter DAI field indicates a number of DCI formats,
the number of DCI formats is provided by PDCCH receptions in CORESETs from the first CORESETs,
HARQ-ACK information bits corresponding to the number of DCI formats are in the first HARQ-ACK codebook, and
HARQ-ACK information bits corresponding to the first DCI format are placed last in the first HARQ-ACK codebook.