Physical uplink control channel transmission for low latency communication deployments
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determining a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a format of a set of PUCCH transmissions in the sub-slot, and wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and reporting information identifying the PUCCH characteristic for a plurality of types of symbol codebooks. Numerous other aspects are provided.
1. A wireless communication device for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
determine a physical uplink control channel (PUCCH) transmission characteristic,
wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a PUCCH format of a set of PUCCH transmissions in the sub-slot, and
wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook, the at least one sub-slot HARQ ACK codebook comprising a symbol configuration; and
report information identifying the PUCCH transmission characteristic for the at least one sub-slot HARQ ACK codebook in accordance with the symbol configuration.
2. The wireless communication device of claim 1 , wherein a quantity of PUCCH transmissions conveying channel state information and a quantity of iterations of multiplexing of scheduling requests, HARQ ACKs, or channel state information has a fixed definition.
3. The wireless communication device of claim 1 , wherein the symbol configuration corresponds to a set of feature groups having a fixed definition, and
wherein at least one of the set of feature groups supports a 2×7-symbol codebook or a 7×2-symbol codebook with one PUCCH per sub-slot and one or more length configurations.
4. The wireless communication device of claim 1 , wherein the wireless communication device supports a single sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic separately for a plurality of types of symbol codebooks.
5. The wireless communication device of claim 1 , wherein the wireless communication device supports a single sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks and without regard to a length configuration.
6. The wireless communication device of claim 1 , wherein the wireless communication device supports a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic separately for a plurality of types of symbol codebooks based at least in part on the symbol configuration.
7. The wireless communication device of claim 1 , wherein the wireless communication device supports a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks without regard to the symbol configuration.
8. The wireless communication device of claim 1 , wherein the wireless communication device supports two sub-slot-based HARQ ACK codebooks and is configured to report the PUCCH transmission characteristic separately based at least in part on the symbol configuration.
9. The wireless communication device of claim 1 , wherein the wireless communication device supports two sub-slot-based HARQ ACK codebooks and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks without regard to the symbol configuration.
10. The wireless communication device of claim 1 , wherein the wireless communication device is configured to report the PUCCH transmission characteristic separately regardless of a quantity of HARQ ACK codebooks that are configured.
11. The wireless communication device of claim 1 , wherein the wireless communication device is configured to report the PUCCH transmission characteristic jointly based at least in part on a quantity of HARQ ACK codebooks that are configured.
12. The wireless communication device of claim 1 , wherein a first feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in a first codebook configuration and a second feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in a second codebook configuration.
13. The wireless communication device of claim 1 , wherein a single feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in all HARQ ACK codebooks.
14. A method of wireless communication performed by a wireless communication device, comprising:
determining a physical uplink control channel (PUCCH) transmission characteristic,
wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a PUCCH format of a set of PUCCH transmissions in the sub-slot, and
wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook, the at least one sub-slot HARQ ACK codebook comprising a symbol configuration; and
reporting information identifying the PUCCH transmission characteristic for the at least one sub-slot HARQ ACK codebook in accordance with the symbol configuration.
15. The method of claim 14 , wherein a quantity of PUCCH transmissions conveying channel state information and a quantity of iterations of multiplexing of scheduling requests, HARQ ACKs, or channel state information has a fixed definition.
16. The method of claim 14 , wherein the symbol configuration corresponds to a set of feature groups having a fixed definition, and
wherein at least one of the set of feature groups supports a 2×7-symbol codebook or a 7×2-symbol codebook with one PUCCH per sub-slot and one or more length configurations.
17. The method of claim 14 , wherein the wireless communication device supports a single sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic separately for a plurality of types of symbol codebooks.
18. The method of claim 14 , wherein the wireless communication device supports a single sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks and without regard to a length configuration.
19. The method of claim 14 , wherein the wireless communication device supports a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic separately for a plurality of types of symbol codebooks based at least in part on the symbol configuration.
20. The method of claim 14 , wherein the wireless communication device supports a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks without regard to the symbol configuration.
21. The method of claim 14 , wherein the wireless communication device supports two sub-slot-based HARQ ACK codebooks and is configured to report the PUCCH transmission characteristic separately based at least in part on the symbol configuration.
22. The method of claim 14 , wherein the wireless communication device supports two sub-slot-based HARQ ACK codebooks and is configured to report the PUCCH transmission characteristic jointly for a plurality of types of symbol codebooks without regard to a symbol configuration.
23. The method of claim 14 , wherein the wireless communication device is configured to report the PUCCH transmission characteristic separately regardless of a quantity of HARQ ACK codebooks that are configured.
24. The method of claim 14 , wherein the wireless communication device is configured to report the PUCCH transmission characteristic jointly based at least in part on a quantity of HARQ ACK codebooks that are configured.
25. The method of claim 14 , wherein a first feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in a first codebook configuration and a second feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in a second codebook configuration.
26. The method of claim 14 , wherein a single feature group is defined for a quantity of scheduling requests or HARQ ACKs that are multiplexed in all HARQ ACK codebooks.
27. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a wireless communication device, cause the wireless communication device to:
determine a physical uplink control channel (PUCCH) transmission characteristic,
wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a PUCCH format of a set of PUCCH transmissions in the sub-slot, and
wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook, the at least one sub-slot HARQ ACK codebook comprising a symbol configuration; and
report information identifying the PUCCH transmission characteristic for the at least one sub-slot HARQ ACK codebook in accordance with the symbol configuration.
28. The non-transitory computer-readable medium of claim 27 , wherein a quantity of PUCCH transmissions conveying channel state information and a quantity of iterations of multiplexing of scheduling requests, HARQ ACKs, or channel state information has a fixed definition.
29. The non-transitory computer-readable medium of claim 27 , wherein the symbol configuration corresponds to a set of feature groups having a fixed definition, and
wherein at least one of the set of feature groups supports a 2×7-symbol codebook or a 7×2-symbol codebook with one PUCCH per sub-slot and one or more length configurations.
30. An apparatus for wireless communication, comprising:
means for determining a physical uplink control channel (PUCCH) transmission characteristic,
wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a PUCCH format of a set of PUCCH transmissions in the sub-slot, and
wherein the apparatus supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook, the at least one sub-slot HARQ ACK codebook comprising a symbol configuration; and
means for reporting information identifying the PUCCH transmission characteristic for the at least one sub-slot HARQ ACK codebook in accordance with the symbol configuration.