Uplink control information transmission on autonomous uplink in new radio-unlicensed (NR-U)
Wireless communications systems and methods related to communicating uplink control information (UCI) in a network operating over multiple aggregated unlicensed carriers are provided. A first wireless communication device communicates, with a second wireless communication device, a downlink communication signal. The first wireless communication device communicates, with the second wireless communication device, an unscheduled uplink communication signal including an uplink report associated with the downlink communication signal, the unscheduled uplink communication signal communicated based on a listen-before-talk (LBT) procedure. The uplink report includes at least one of an acknowledgement (ACK) for data in the downlink communication signal, a negative-acknowledgement (NACK) for the data in the downlink communication signal, or channel information based at least on the downlink communication signal.
1 . A method of wireless communication, comprising:
communicating, by a first wireless communication device with a second wireless communication device, a resource configuration for communicating an unscheduled physical uplink shared channel (PUSCH) signal;
communicating, by the first wireless communication device with the second wireless communication device, an uplink data request configured to trigger communication of uplink data;
communicating, by the first wireless communication device with the second wireless communication device in a scheduled resource, downlink (DL) data, wherein the DL data is associated with a first hybrid repeat request (HARQ) process; and
communicating, by the first wireless communication device with the second wireless communication device, the unscheduled PUSCH signal in an unscheduled uplink resource, wherein the communicating the unscheduled PUSCH signal is based on the resource configuration, the unscheduled PUSCH including:
unscheduled uplink control information (UCI), wherein the unscheduled UCI is associated with a second HARQ process, wherein the second HARQ process is different from the first HARQ process;
hybrid automated repeat request (HARQ) acknowledgement/negative-acknowledgement (ACK/NACK) information associated with the DL data, wherein the HARQ ACK/NACK information is multiplexed with the unscheduled UCI, wherein the HARQ ACK/NACK information is associated with the first HARQ process; and
the uplink data, wherein the uplink data is multiplexed with the unscheduled UCI based on mapping the unscheduled PUSCH signal to a resource allocated to the unscheduled PUSCH signal according to the resource configuration and mapping the uplink data to one or more resources which are unoccupied by the unscheduled UCI, wherein the uplink data is associated with the second HARQ process.
2 . The method of claim 1 , wherein the uplink data includes channel state information (CSI).
3 . The method of claim 1 , wherein the uplink data comprises an uplink report.
4 . The method of claim 1 , wherein the unscheduled PUSCH signal further comprises at least one of channel state information (CSI) part 1 or CSI part 2 .
5 . The method of claim 4 , wherein the HARQ ACK/NACK information, the unscheduled UCI, and the at least one of the CSI part 1 or the CSI part 2 are multiplexed with the unscheduled PUSCH signal.
6 . The method of claim 4 , wherein the unscheduled PUSCH signal further includes unscheduled uplink data multiplexed with the unscheduled UCI, the HARQ ACK/NACK information, and the at least one of the CSI part 1 or the CSI part 2 .
7 . The method of claim 1 , wherein the unscheduled PUSCH signal includes coded bits for the HARQ ACK/NACK information and at least one of channel state information (CSI) part 1 , CSI part 2 , or the unscheduled UCI.
8 . The method of claim 7 , wherein the unscheduled PUSCH signal includes coded bits for unscheduled uplink data multiplexed with the coded bits for the HARQ ACK/NACK information and the at least one of the CSI part 1 , the CSI part 2 , or the unscheduled UCI.
9 . The method of claim 1 , wherein the communicating the unscheduled PUSCH signal includes:
communicating, by the first wireless communication device with the second wireless communication device, the uplink data based on a predetermined periodicity.
10 . The method of claim 1 , wherein:
the communicating the resource configuration comprises communicating the resource configuration in a first frequency band;
the communicating the uplink data request comprises communicating the uplink data request in a second frequency band; and
the second frequency band is a higher frequency band than the first frequency band.
11 . The method of claim 1 , wherein the unscheduled PUSCH signal further includes a transmission configuration including a starting symbol index for the uplink data and an indication of inclusion of the uplink data in the unscheduled PUSCH.
12 . A user equipment (UE) for wireless communication, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to case the UE to:
communicate, with a wireless communication device, a resource configuration for communicating an unscheduled physical uplink shared channel (PUSCH) signal;
communicate, with the wireless communication device, an uplink data request configured to trigger communication of uplink data;
communicate, with the wireless communication device, downlink (DL) data, wherein the DL data is associated with a first hybrid repeat request (HARQ) process; and
communicate, with the wireless communication device based on the resource configuration, the unscheduled PUSCH signal including:
unscheduled uplink control information (UCI), wherein the unscheduled UCI is associated with a second HARQ process, wherein the second HARQ process is different from the first HARQ process;
hybrid automated repeat request (HARQ) acknowledgement/negative-acknowledgement (ACK/NACK) information associated with the DL data, wherein the HARQ ACK/NACK information is multiplexed with the unscheduled UCI, wherein the HARQ ACK/NACK information is associated with the first HARQ process; and
the uplink data, wherein the uplink data is multiplexed with the unscheduled UCI based on mapping the unscheduled PUSCH signal to a resource allocated to the unscheduled PUSCH signal according to the resource configuration and mapping the uplink data to one or more resources which are unoccupied by the unscheduled UCI, wherein the uplink data is associated with the second HARQ process.
13 . The UE of claim 12 , wherein the uplink data includes channel state information (CSI).
14 . The UE of claim 12 , wherein the uplink data comprises an uplink report.
15 . The UE of claim 14 , wherein the unscheduled PUSCH signal further comprises at least one of channel state information (CSI) part 1 or CSI part 2 .
16 . The UE of claim 15 , wherein the HARQ ACK/NACK information, the unscheduled UCI, and the at least one of the CSI part 1 or the CSI part 2 are multiplexed with the unscheduled PUSCH signal.
17 . The UE of claim 15 , wherein the unscheduled PUSCH signal further includes unscheduled uplink data multiplexed with the unscheduled UCI, the HARQ ACK/NACK information, and the at least one of the CSI part 1 or the CSI part 2 .
18 . The UE of claim 12 , wherein the unscheduled PUSCH signal includes coded bits for the HARQ ACK/NACK information and at least one of channel state information (CSI) part 1 , CSI part 2 , or the unscheduled UCI.
19 . The UE of claim 18 , wherein the unscheduled PUSCH signal includes coded bits for unscheduled uplink data multiplexed with the coded bits for the HARQ ACK/NACK information and the at least one the CSI part 1 , the CSI part 2 , or the unscheduled UCI.
20 . The UE of claim 12 , wherein the unscheduled PUSCH signal further includes a transmission configuration including a starting symbol index for the uplink data and an indication of inclusion of the uplink data in the unscheduled PUSCH.
21 . A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
code for causing a first wireless communication device to communicate, with a second wireless communication device, a resource configuration for communicating an unscheduled physical uplink shared channel (PUSCH) signal;
code for causing the first wireless communication device to communicate, with the second wireless communication device an uplink data request configured to trigger communication of uplink data;
code for causing the first wireless communication device to communicate with the second wireless communication device in a scheduled resource, downlink (DL) data, wherein the DL data is associated with a first hybrid repeat request (HARQ) process; and
code for causing the first wireless communication device to communicate, with the second wireless communication device, the unscheduled PUSCH signal in an unscheduled uplink resource, wherein the communicating the unscheduled PUSCH signal is based on the resource configuration, the unscheduled PUSCH signal including:
unscheduled uplink control information (UCI), wherein the unscheduled UCI is associated with a second HARQ process, wherein the second HARQ process is different from the first HARQ process;
hybrid automated repeat request (HARQ) acknowledgement/negative-acknowledgement (ACK/NACK) information associated with the DL data, wherein the HARQ ACK/NACK information is multiplexed with the unscheduled UCI, wherein the HARQ ACK/NACK information is associated with the first HARQ process; and
the uplink data, wherein the uplink data is multiplexed with the unscheduled UCI based on mapping the unscheduled PUSCH signal to a resource allocated to the unscheduled PUSCH signal according to the resource configuration and mapping the uplink data to one or more resource which are unoccupied by the unscheduled UCI, wherein the uplink data is associated with the second HARQ process.
22 . The non-transitory computer-readable medium of claim 21 , wherein the uplink data includes channel state information (CSI).
23 . The non-transitory computer-readable medium of claim 21 , wherein the unscheduled PUSCH signal further comprises at least one of channel state information (CSI) part 1 or CSI part 2 .
24 . The non-transitory computer-readable medium of claim 23 , wherein the HARQ ACK/NACK information, the unscheduled UCI, and the at least one of the CSI part 1 or the CSI part 2 are multiplexed with the unscheduled PUSCH signal.
25 . The non-transitory computer-readable medium of claim 23 , wherein the unscheduled PUSCH signal further includes unscheduled uplink data multiplexed with the unscheduled UCI, the HARQ ACK/NACK information, and the at least one of the CSI part 1 or the CSI part 2 .
26 . The non-transitory computer-readable medium of claim 21 , wherein the unscheduled PUSCH signal further includes a transmission configuration including a starting symbol index for the uplink data and an indication of inclusion of the uplink data in the unscheduled PUSCH.