# US 2025/0096984 A1 · Feedback for sidelink transmissions

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- Number: US 2025/0096984 A1
- Document ID: US20250096984A1
- Status: Published application
- Kind: A1
- Application number: 18/960,886
- Filed: 2024-11-26
- Published: 2025-03-20
- Earliest claimed: 2022-01-27
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Gabi SARKIS; Guangyi LIU; Sony AKKARAKARAN; Tien Viet NGUYEN
- Web page: https://patentgrep.com/patent/US20250096984A1

## CPC

- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04W 72/044: based on the type of the allocated resource
- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sidelink transmission that includes a transport block, and may transmit sidelink feedback, for each of a plurality of code block groups included in the transport block, in respective physical sidelink feedback channel (PSFCH) resources. In some aspects, a UE may receive a sidelink transmission that spans a plurality of slots, and may transmit, for the sidelink transmission, sidelink feedback in at least one of: first one or more PSFCH resources that occur during the sidelink transmission, or second one or more PSFCH resources that occur after the sidelink transmission. Numerous other aspects are provided.

## Claims

### Claim 1

A 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 a sidelink transmission that spans a plurality of slots; and
transmit, for the sidelink transmission, sidelink feedback in at least one of:
one or more first physical sidelink feedback channel (PSFCH) resources that occur during the sidelink transmission, or
one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the one or more processors, to transmit the sidelink feedback, are configured to:
transmit a single sidelink feedback for the sidelink transmission in a PSFCH resource of the one or more second PSFCH resources that occur after the sidelink transmission,
wherein the PSFCH resource occurs after a last slot of the plurality of slots.

### Claim 3 (depends on 2)

The UE of claim 2, wherein the PSFCH resource occurs at least a threshold quantity of slots after the last slot of the plurality of slots.

### Claim 4 (depends on 1)

The UE of claim 1, wherein the one or more processors, to transmit the sidelink feedback, are configured to:
transmit respective sidelink feedbacks for each slot of the plurality of slots in which the sidelink transmission was transmitted.

### Claim 5 (depends on 4)

The UE of claim 4, wherein the one or more processors, to transmit the respective sidelink feedbacks, are configured to:
transmit the respective sidelink feedbacks in the one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 6 (depends on 4)

The UE of claim 4, wherein the one or more processors, to transmit the respective sidelink feedbacks, are configured to:
transmit a first subset of the respective sidelink feedbacks in the one or more first PSFCH resources that occur during the sidelink transmission,
wherein the first subset of the respective sidelink feedbacks is associated with a first subset of the plurality of slots that occur prior to a slot in which the one or more first PSFCH resources are located; and
transmit a second subset of the respective sidelink feedbacks in the one or more second PSFCH resources that occur after the sidelink transmission,
wherein the second subset of the respective sidelink feedbacks is associated with a second subset of the plurality of slots that occur at least one of:
prior to the slot in which the one or more first PSFCH resources are located,
during the slot in which the one or more first PSFCH resources are located, or
after the slot in which the one or more first PSFCH resources are located.

### Claim 7 (depends on 1)

The UE of claim 1, wherein the one or more processors, to transmit the sidelink feedback, are configured to:
transmit the sidelink feedback based at least in part on a feedback configuration indicated in a header of the sidelink transmission,
wherein the feedback configuration indicates at least one of:
a quantity of sidelink feedbacks that are to be provided for the sidelink transmission, or
a feedback granularity for the sidelink feedback.

### Claim 8

A method of wireless communication performed by a user equipment (UE), comprising:
receiving a sidelink transmission that spans a plurality of slots; and
transmitting, for the sidelink transmission, sidelink feedback in at least one of:
one or more physical sidelink feedback channel (PSFCH) resources that occur during the sidelink transmission, or
one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 9 (depends on 8)

The method of claim 8, wherein transmitting the sidelink feedback comprises:
transmitting a single sidelink feedback for the sidelink transmission in a PSFCH resource of the one or more second PSFCH resources that occur after the sidelink transmission,
wherein the PSFCH resource occurs after a last slot of the plurality of slots.

### Claim 10 (depends on 9)

The method of claim 9, wherein the PSFCH resource occurs at least a threshold quantity of slots after the last slot of the plurality of slots.

### Claim 11 (depends on 8)

The method of claim 8, wherein transmitting the sidelink feedback comprises:
transmitting respective sidelink feedbacks for each slot of the plurality of slots in which the sidelink transmission was transmitted.

### Claim 12 (depends on 11)

The method of claim 11, wherein transmitting the respective sidelink feedback comprises:
transmitting the respective sidelink feedbacks in the one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 13 (depends on 11)

The method of claim 11, wherein transmitting the respective sidelink feedbacks comprises:
transmitting a first subset of the respective sidelink feedbacks in the one or more first PSFCH resources that occur during the sidelink transmission,
wherein the first subset of the respective sidelink feedbacks is associated with a first subset of the plurality of slots that occur prior to a slot in which the one or more first PSFCH resources are located; and
transmitting a second subset of the respective sidelink feedbacks in the one or more second PSFCH resources that occur after the sidelink transmission,
wherein the second subset of the respective sidelink feedbacks is associated with a second subset of the plurality of slots that occur at least one of:
prior to the slot in which the one or more first PSFCH resources are located,
during the slot in which the one or more first PSFCH resources are located, or
after the slot in which the one or more first PSFCH resources are located.

### Claim 14 (depends on 8)

The method of claim 8, wherein transmitting the sidelink feedback comprises:
transmitting the sidelink feedback based at least in part on a feedback configuration indicated in a header of the sidelink transmission,
wherein the feedback configuration indicates at least one of:
a quantity of sidelink feedbacks that are to be provided for the sidelink transmission, or
a feedback granularity for the sidelink feedback.

### Claim 15

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 user equipment (UE), cause the UE to:
receive a sidelink transmission that spans a plurality of slots; and
transmit, for the sidelink transmission, sidelink feedback in at least one of:
one or more physical sidelink feedback channel (PSFCH) resources that occur during the sidelink transmission, or
one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 16 (depends on 15)

The non-transitory computer-readable medium of claim 15, wherein the one or more instructions, that cause the UE to transmit the sidelink feedback, cause the UE to:
transmit a single sidelink feedback for the sidelink transmission in a PSFCH resource of the one or more second PSFCH resources that occur after the sidelink transmission,
wherein the PSFCH resource occurs after a last slot of the plurality of slots.

### Claim 17 (depends on 16)

The non-transitory computer-readable medium of claim 16, wherein the PSFCH resource occurs at least a threshold quantity of slots after the last slot of the plurality of slots.

### Claim 18 (depends on 15)

The non-transitory computer-readable medium of claim 15, wherein the one or more instructions, that cause the UE to transmit the sidelink feedback, cause the UE to:
transmit respective sidelink feedbacks for each slot of the plurality of slots in which the sidelink transmission was transmitted.

### Claim 19 (depends on 18)

The non-transitory computer-readable medium of claim 18, wherein the one or more instructions, that cause the UE to transmit the respective sidelink feedbacks, cause the UE to:
transmit the respective sidelink feedbacks in the one or more second PSFCH resources that occur after the sidelink transmission.

### Claim 20 (depends on 15)

The non-transitory computer-readable medium of claim 15, wherein the one or more instructions, that cause the UE to transmit the sidelink feedback, cause the UE to:
transmit the sidelink feedback based at least in part on a feedback configuration indicated in a header of the sidelink transmission,
wherein the feedback configuration indicates at least one of:
a quantity of sidelink feedbacks that are to be provided for the sidelink transmission, or
a feedback granularity for the sidelink feedback.
