Sidelink feedback reporting
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may apply a timing adjustment for a sidelink connection with a second UE, wherein the timing adjustment causes a slot structure on the sidelink connection to align with a slot structure on an uplink connection with a base station; and transmit sidelink feedback, received via the sidelink connection, on the uplink connection based at least in part on the timing adjustment, wherein the sidelink feedback is mapped to a slot on the uplink connection, of two or more slots on the uplink connection that the sidelink feedback overlaps, based at least in part on a rule. Numerous other aspects are provided.
1 . A method of wireless communication performed by a first user equipment (UE), comprising:
receiving sidelink feedback on a connection with a second UE; and
providing the sidelink feedback on an uplink resource via a connection with a network entity in accordance with a minimum processing time,
wherein the minimum processing time separates, in time, the uplink resource from a sidelink resource on which the sidelink feedback is received, and
wherein the minimum processing time corresponds to a symbol length associated with a smallest numerical value of a subcarrier spacing between; a first subcarrier spacing of a sidelink bandwidth part corresponding to the connection with the second UE, and a second subcarrier spacing of an uplink bandwidth part corresponding to the connection with the network entity.
2 . The method of claim 1 , wherein the sidelink feedback is received on a physical sidelink feedback channel (PSFCH) and the uplink resource is associated with a physical uplink control channel (PUCCH), and wherein the minimum processing time is between an end of the PSFCH and a start of the PUCCH.
3 . The method of claim 1 , wherein the minimum processing time is further based on respective minimum processing time capabilities associated with the connection with the second UE and the connection with the network entity.
4 . The method of claim 1 , wherein the minimum processing time is fixed.
5 . The method of claim 1 , wherein the minimum processing time is further based at least in part on a minimum processing time capability of the uplink connection with the network entity.
6 . The method of claim 1 , wherein the minimum processing time is further based at least in part on a minimum processing time capability of the connection with the second UE.
7 . The method of claim 1 , wherein the minimum processing time is further based at least in part on a slower minimum processing time capability when one or more of the connection with the second UE and the connection with the network entity are configured with the slower minimum processing time capability, and wherein the minimum processing time is further based at least in part on a faster minimum processing time capability when the connection with the second UE and the connection with the network entity are configured with the faster minimum processing time capability.
8 . The method of claim 1 , wherein the minimum processing time is selected from respective minimum processing times of the connection with the second UE and the connection with the network entity.
9 . The method of claim 1 , wherein the minimum processing time is configured as a semi-static value.
10 . A method of wireless communication performed by a network entity, comprising:
configuring, for a first user equipment (UE), a sidelink resource for sidelink feedback on a connection between the first UE and a second UE;
configuring, for the first UE and in accordance with a minimum processing time, an uplink resource for the sidelink feedback on a connection between the network entity and the first UE,
wherein the minimum processing time separates, in time, the uplink resource from the sidelink resource, and
wherein the minimum processing time corresponds to a symbol length associated with a smallest numerical value of a subcarrier spacing between; a first subcarrier spacing of a sidelink bandwidth part corresponding to the connection between the first UE and the second UE, and a second subcarrier spacing of a second bandwidth part corresponding to the connection between the network entity and the first UE; and
receiving the sidelink feedback on the uplink resource.
11 . The method of claim 10 , wherein the sidelink resource is associated with a physical sidelink feedback channel (PSFCH) and the uplink resource is associated with a physical uplink control channel (PUCCH), and wherein the minimum processing time is between an end of the PSFCH and a start of the PUCCH.
12 . The method of claim 10 , wherein the minimum processing time is further based on respective minimum processing time capabilities associated with the connection between the first UE and the second UE and the connection between the network entity and the first UE.
13 . The method of claim 10 , wherein the minimum processing time is fixed.
14 . The method of claim 10 , wherein the minimum processing time is further based at least in part on a minimum processing time capability of the connection between the network entity and the first UE.
15 . The method of claim 10 , wherein the minimum processing time is further based at least in part on a minimum processing time capability of the connection between the first UE and the second UE.
16 . The method of claim 10 , wherein the minimum processing time is further based at least in part on a slower minimum processing time capability when one or more of the connection between the first UE and the second UE and the connection between the network entity and the first UE are configured with the slower minimum processing time capability, and wherein the minimum processing time is further based at least in part on a faster minimum processing time capability when the connection between the first UE and the second UE and the connection between the network entity and the first UE are configured with the faster minimum processing time capability.
17 . A first user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive sidelink feedback on a connection with a second UE; and
provide the sidelink feedback on an uplink resource via a connection with a network entity in accordance with a minimum processing time,
wherein the minimum processing time separates, in time, the uplink resource from a sidelink resource on which the sidelink feedback is received, and
wherein the minimum processing time corresponds to a symbol length associated with a smallest numerical value of a subcarrier spacing between; a first subcarrier spacing of a sidelink bandwidth part corresponding to the connection with the second UE, and a second subcarrier spacing of an uplink bandwidth part corresponding to the connection with the network entity.
18 . The first UE of claim 17 , wherein the minimum processing time is fixed.
19 . The first UE of claim 17 , wherein the sidelink feedback is received on a physical sidelink feedback channel (PSFCH) and the uplink resource is associated with a physical uplink control channel (PUCCH), and wherein the minimum processing time is between an end of the PSFCH and a start of the PUCCH.
20 . A network entity for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
configure, for a first user equipment (UE), a sidelink resource for sidelink feedback on a connection between the first UE and a second UE;
configure, for the first UE and in accordance with a minimum processing time, an uplink resource for the sidelink feedback on a connection between the network entity and the first UE,
wherein the minimum processing time separates, in time, the uplink resource from the sidelink resource, and
wherein the minimum processing time corresponds to a symbol length associated with a smallest numerical value of a subcarrier spacing between; a first subcarrier spacing of a sidelink bandwidth part corresponding to the connection between the first UE and the second UE, and a second subcarrier spacing of a second bandwidth part corresponding to the connection between the network entity and the first UE; and
receive the sidelink feedback on the uplink resource.
21 . The network entity of claim 20 , wherein the minimum processing time is fixed.
22 . The network entity of claim 20 , wherein the sidelink feedback associated with a physical sidelink feedback channel (PSFCH) and the uplink resource is associated with a physical uplink control channel (PUCCH), and wherein the minimum processing time is between an end of the PSFCH and a start of the PUCCH.
23 . The method of claim 1 , wherein the sidelink feedback comprises at least one of hybrid automatic repeat request feedback, transmit power control, or a scheduling request.
24 . The method of claim 1 , wherein the minimum processing time corresponds to a last symbol of a physical sidelink feedback channel corresponding to the sidelink feedback.
25 . The method of claim 10 , wherein the sidelink feedback comprises at least one of hybrid automatic repeat request feedback, transmit power control, or a scheduling request.
26 . The method of claim 10 , wherein the minimum processing time corresponds to a last symbol of a physical sidelink feedback channel corresponding to the sidelink feedback.
27 . The first UE of claim 17 , wherein the sidelink feedback comprises at least one of hybrid automatic repeat request feedback, transmit power control, or a scheduling request.
28 . The first UE of claim 17 , wherein the minimum processing time corresponds to a last symbol of a physical sidelink feedback channel corresponding to the sidelink feedback.
29 . The network entity of claim 20 , wherein the sidelink feedback comprises at least one of hybrid automatic repeat request feedback, transmit power control, or a scheduling request.
30 . The network entity of claim 20 , wherein the minimum processing time corresponds to a last symbol of a physical sidelink feedback channel corresponding to the sidelink feedback.