Feedback for wireless communications
Wireless devices may communicate with each other, for example, via sidelink communication. A wireless device may receive downlink messages from a base station, and the wireless device may receive sidelink messages from another wireless device. Acknowledgment messages to the base station may be prioritized, based on an indication of a priority, such that a sidelink message may be prioritized over acknowledgment feedback for a downlink message.
1. A method comprising:
determining, by a wireless device based on one or more feedback messages associated with one or more sidelink messages, a sidelink acknowledgement feedback; and
based on determining that a first physical uplink control channel (PUCCH) resource associated with the sidelink acknowledgement feedback overlaps in time with a second PUCCH resource associated with uplink control information (UCI):
determining a highest priority among priorities of the one or more sidelink messages; and
sending, to a base station based on a comparison of the highest priority with a priority threshold, the sidelink acknowledgment feedback or the UCI.
2. The method of claim 1 , wherein sending the sidelink acknowledgment feedback or the UCI comprises sending the sidelink acknowledgement feedback based on the highest priority being higher than the priority threshold.
3. The method of claim 1 , further comprising receiving, by the wireless device from the base station, one or more radio resource control (RRC) messages indicating the priority threshold.
4. The method of claim 1 , further comprising:
receiving one or more sidelink downlink control information (DCI) messages indicating the first PUCCH resource; and
receiving one or more DCI messages indicating the second PUCCH resource.
5. The method of claim 1 , wherein the UCI comprises at least one of:
hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback associated with one or more downlink transmissions,
channel state information (CSI) feedback associated with a downlink carrier, or
a scheduling request for uplink data.
6. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
determine, based on one or more feedback messages associated with one or more sidelink messages, a sidelink acknowledgement feedback; and
based on determining that a first physical uplink control channel (PUCCH) resource associated with the sidelink acknowledgement feedback overlaps in time with a second PUCCH resource associated with uplink control information (UCI):
determine a highest priority among priorities of the one or more sidelink messages; and
send, to a base station based on a comparison of the highest priority with a priority threshold, the sidelink acknowledgment feedback or the UCI.
7. The wireless device of claim 6 , wherein the instructions, when executed by the one or more processors, cause the wireless device to send the sidelink acknowledgment feedback or the UCI based on the highest priority being higher than the priority threshold.
8. The wireless device of claim 6 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to receive, from the base station, one or more radio resource control (RRC) messages indicating the priority threshold.
9. The wireless device of claim 6 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:
receive one or more sidelink downlink control information (DCI) messages indicating the first PUCCH resource; and
receive one or more DCI messages indicating the second PUCCH resource.
10. The wireless device of claim 6 , wherein the UCI comprises at least one of:
hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback associated with one or more downlink transmissions,
channel state information (CSI) feedback associated with a downlink carrier, or
a scheduling request for uplink data.
11. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
determine, based on one or more feedback messages associated with one or more sidelink messages, a sidelink acknowledgement feedback; and
based on determining that a first physical uplink control channel (PUCCH) resource associated with the sidelink acknowledgement feedback overlaps in time with a second PUCCH resource associated with uplink control information (UCI):
determine a highest priority among priorities of the one or more sidelink messages; and
send, to a base station based on a comparison of the highest priority with a priority threshold, the sidelink acknowledgment feedback or the UCI.
12. The non-transitory computer-readable medium of claim 11 , wherein the instructions, when executed, configure the wireless device to send the sidelink acknowledgment feedback or the UCI based on the highest priority being higher than the priority threshold.
13. The non-transitory computer-readable medium of claim 11 , wherein the instructions, when executed, further configure the wireless device to receive, from the base station, one or more radio resource control (RRC) messages indicating the priority threshold.
14. The non-transitory computer-readable medium of claim 11 , wherein the instructions, when executed, further configure the wireless device to:
receive one or more sidelink downlink control information (DCI) messages indicating the first PUCCH resource; and
receive one or more DCI messages indicating the second PUCCH resource.
15. The non-transitory computer-readable medium of claim 11 , wherein the UCI comprises at least one of:
hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback associated with one or more downlink transmissions,
channel state information (CSI) feedback associated with a downlink carrier, or a scheduling request for uplink data.
16. A system comprising:
a wireless device; and
a base station,
wherein the wireless device is configured to:
determine, based on one or more feedback messages associated with one or more sidelink messages, a sidelink acknowledgement feedback; and
based on determining that a first physical uplink control channel (PUCCH) resource associated with the sidelink acknowledgement feedback overlaps in time with a second PUCCH resource associated with uplink control information (UCI):
determine a highest priority among priorities of the one or more sidelink messages; and
send, based on a comparison of the highest priority with a priority threshold, the sidelink acknowledgment feedback or the UCI, and
wherein the base station is configured to receive the sidelink acknowledgement feedback or the UCI.
17. The system of claim 16 , wherein the wireless device is configured to send the sidelink acknowledgment feedback or the UCI based on the highest priority being higher than the priority threshold.
18. The system of claim 16 , wherein the wireless device is further configured to receive, from the base station, one or more radio resource control (RRC) messages indicating the priority threshold.
19. The system of claim 16 , wherein the wireless device is further configured to:
receive one or more sidelink downlink control information (DCI) messages indicating the first PUCCH resource; and
receive one or more DCI messages indicating the second PUCCH resource.
20. The system of claim 16 , wherein the UCI comprises at least one of:
hybrid automatic repeat request-acknowledgment (HARQ-ACK) feedback associated with one or more downlink transmissions,
channel state information (CSI) feedback associated with a downlink carrier, or
a scheduling request for uplink data.