# US 2025/0096952 A1 · Multiplexing two part hybrid automatic repeat request acknowledgement (harq-ack)

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- Number: US 2025/0096952 A1
- Document ID: US20250096952A1
- Status: Published application
- Kind: A1
- Application number: 18/471,229
- Filed: 2023-09-20
- Published: 2025-03-20
- Earliest claimed: 2023-09-20
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Mostafa KHOSHNEVISAN; Yi HUANG; Jing SUN
- Web page: https://patentgrep.com/patent/US20250096952A1

## CPC

- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/0026: {Transmission of channel quality indication}
- H04L 1/0031: {Multiple signaling transmission (H04L1/1664, F15 take precedence)}
- H04L 1/0041: {Arrangements at the transmitter end}
- H04L 1/0073: {Special arrangements for feedback channel}
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04W 72/1268: of uplink data flows
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling
- 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

A method for wireless communication at a UE includes forming a first hybrid automatic repeat request acknowledgement (HARQ-ACK) part and a second HARQ-ACK part associated with a HARQ-ACK payload in accordance with a transformation scheme. The HARQ-ACK payload includes HARQ feedback for each one of a group of downlink transmissions. The method also includes separately encoding the first HARQ-ACK part and the second HARQ-ACK part. The method further includes multiplexing the encoded first HARQ-ACK part and the encoded second HARQ-ACK part on a physical uplink shared channel (PUSCH). The method still further includes transmitting, to the network node via the PUSCH, the multiplexed first HARQ-ACK part and second HARQ-ACK part.

## Claims

### Claim 1

A method for wireless communication at a user equipment (UE), comprising:
receiving, from a network node, a group of downlink transmissions;
forming a first hybrid automatic repeat request acknowledgement (HARQ-ACK) part and a second HARQ-ACK part associated with a HARQ-ACK payload in accordance with a transformation scheme, the HARQ-ACK payload including HARQ feedback for each one of the group of downlink transmissions, a size of the second HARQ-ACK part being a function of the first HARQ-ACK part;
separately encoding the first HARQ-ACK part and the second HARQ-ACK part;
multiplexing the encoded first HARQ-ACK part and the encoded second HARQ-ACK part on a physical uplink shared channel (PUSCH); and
transmitting, to the network node via the PUSCH, the multiplexed first HARQ-ACK part and second HARQ-ACK part.

### Claim 2 (depends on 1)

The method of claim 1, further comprising receiving, from the network node, downlink control information scheduling the PUSCH, wherein the DCI indicates whether to multiplex: the encoded first HARQ-ACK part and the encoded second HARQ-ACK part on the PUSCH, or the HARQ-ACK payload on the PUSCH.

### Claim 3 (depends on 1)

The method of claim 1, wherein the encoded first HARQ-ACK part and the encoded second HARQ-ACK part are multiplexed in accordance with a puncturing scheme or a rate matching scheme.

### Claim 4 (depends on 3)

The method of claim 3, wherein the encoded second HARQ-ACK part is rate matched in accordance with the size of the second HARQ-ACK part satisfying a rate matching condition.

### Claim 5 (depends on 1)

The method of claim 1, further comprising multiplexing uplink control information (UCI) on the PUSCH.

### Claim 6 (depends on 1)

The method of claim 1, wherein the PUSCH overlaps a physical uplink control channel (PUCCH), associated with the HARQ-ACK payload, in a time domain.

### Claim 7 (depends on 5)

The method of claim 5, wherein:
the UCI is a configured grant (CG)-UCI (CG-UCI); and
the CG-UCI is jointly encoded with one of the first HARQ-ACK part or the second HARQ-ACK part.

### Claim 8 (depends on 5)

The method of claim 5, wherein:
the UCI is channel state information (CSI); and
the CSI is separately encoded in accordance with the CSI having one-part.

### Claim 9

A method for wireless communication at a user equipment (UE), comprising:
receiving, from a network node, a group of downlink transmissions;
forming a first hybrid automatic repeat request acknowledgement (HARQ-ACK) part and a second HARQ-ACK part associated with a first HARQ-ACK payload in accordance with a transformation scheme, the first HARQ-ACK payload including HARQ feedback for each one of the group of downlink transmissions, a size of the second HARQ-ACK part being a function of the first HARQ-ACK part;
separately encoding the first HARQ-ACK part and the second HARQ-ACK part;
multiplexing the encoded second HARQ-ACK part on a physical uplink shared channel (PUSCH);
transmitting, to the network node via a physical uplink control channel (PUCCH), the first HARQ-ACK part; and
transmitting, to the network node via the PUSCH, the multiplexed second HARQ-ACK part.

### Claim 10 (depends on 9)

The method of claim 9, wherein:
the PUCCH is associated with the HARQ-ACK payload; and
the PUCCH and the PUSCH do not overlap in a time domain.

### Claim 11 (depends on 9)

The method of claim 9, wherein:
the PUSCH is one of a group of PUSCHs; and
a starting symbol associated with the PUSCH is an earliest starting symbol, with respect to the PUCCH, from the group of PUSCHs.

### Claim 12 (depends on 9)

The method of claim 9, wherein:
the PUSCH is one of a group of PUSCHs allocated to one or more slots; and
the PUSCH has a highest priority among a respective priority of each one of the group of PUSCHs.

### Claim 13 (depends on 9)

The method of claim 9, further comprising receiving, from the network node, downlink control information (DCI) scheduling the PUSCH, wherein the DCI indicates whether to multiplex the encoded second HARQ-ACK part.

### Claim 14 (depends on 9)

The method of claim 9, wherein the encoded second HARQ-ACK part is one of a group of second HARQ-ACK parts pending transmission.

### Claim 15 (depends on 14)

The method of claim 14, wherein the encoded second HARQ-ACK part is a latest second HARQ-ACK part.

### Claim 16 (depends on 14)

The method of claim 14, wherein each one of the group of second HARQ-ACK parts is multiplexed on the PUSCH.

### Claim 17 (depends on 9)

The method of claim 9, wherein:
the encoded second HARQ-ACK part is multiplexed with a second HARQ-ACK payload; and
the second HARQ-ACK part is jointly encoded with the second HARQ-ACK payload or separately encoded from the second HARQ-ACK payload.

### Claim 18 (depends on 9)

The method of claim 9, wherein:
the encoded second HARQ-ACK part is multiplexed with a first HARQ-ACK part and a second HARQ-ACK part associated with a second HARQ-ACK payload;
the first HARQ-ACK part of the second HARQ-ACK payload is jointly encoded with the second HARQ-ACK part of the first HARQ-ACK payload; and
the second HARQ-ACK part of the second HARQ-ACK payload is separately encoded.

### Claim 19 (depends on 9)

The method of claim 9, wherein:
the encoded second HARQ-ACK part is multiplexed with a first HARQ-ACK part and a second HARQ-ACK part associated with a second HARQ-ACK payload;
the second HARQ-ACK part of the second HARQ-ACK payload is jointly encoded with the second HARQ-ACK part of the first HARQ-ACK payload; and
the first HARQ-ACK part of the second HARQ-ACK payload is separately encoded.

### Claim 20

A method for wireless communication at a user equipment (UE), comprising:
receiving, from a network node, a group of downlink transmissions;
forming a first hybrid automatic repeat request acknowledgement (HARQ-ACK) part and a second HARQ-ACK part associated with a first HARQ-ACK payload in accordance with a transformation scheme, the first HARQ-ACK payload including HARQ feedback for each one of the group of downlink transmissions, a size of the second HARQ-ACK part being a function of the first HARQ-ACK part;
separately encoding the first HARQ-ACK part and the second HARQ-ACK part;
transmitting, to the network node via a first PUCCH, the first HARQ-ACK part; and
transmitting, to the network node via a second PUCCH, the second HARQ-ACK part.

### Claim 21 (depends on 20)

The method of claim 20, further comprising receiving, from the network node, first downlink control information (DCI) scheduling the first PUCCH for the first HARQ-ACK payload.

### Claim 22 (depends on 21)

The method of claim 21, wherein:
the second PUCCH resource is associated with a second HARQ-ACK payload; and
the second PUCCH resource is dynamically scheduled via a second DCI or semi-statically configured.

### Claim 23 (depends on 22)

The method of claim 22, wherein:
the second DCI indicates a slot offset between a first slot associated with the second DCI and a second slot associated with the first PUCCH; and
the second HARQ-ACK part is transmitted via the second PUCCH in accordance with the slot offset.

### Claim 24 (depends on 21)

The method of claim 21, wherein the second PUCCH is configured via radio resource control (RRC) signaling or the first DCI.

### Claim 25 (depends on 20)

The method of claim 20, wherein the second PUCCH is subsequent, in time, with respect to the first PUCCH.

### Claim 26 (depends on 20)

The method of claim 20, wherein:
the first PUCCH and the second PUCCH are the same PUCCH; and
the first HARQ-ACK part and the second HARQ-ACK part are multiplexed on the same PUCCH in accordance with a PUCCH format of the first PUCCH and the second PUCCH.

### Claim 27

A user equipment (UE), comprising:
one or more processors; and
one or more memories coupled with the one or more processors and storing processor-executable code that, when executed by the one or more processors, is configured to cause the UE to:
receive, from a network node, a group of downlink transmissions;
form a first hybrid automatic repeat request acknowledgement (HARQ-ACK) part and a second HARQ-ACK part associated with a HARQ-ACK payload in accordance with a transformation scheme, the HARQ-ACK payload including HARQ feedback for each one of the group of downlink transmissions, a size of the second HARQ-ACK part being a function of the first HARQ-ACK part;
separately encode the first HARQ-ACK part and the second HARQ-ACK part;
multiplex the encoded first HARQ-ACK part and the encoded second HARQ-ACK part on a physical uplink shared channel (PUSCH); and
transmit, to the network node via the PUSCH, the multiplexed first HARQ-ACK part and second HARQ-ACK part.

### Claim 28 (depends on 27)

The UE of claim 27, wherein execution of the processor-executable code further cause the UE to receive, from the network node, downlink control information scheduling the PUSCH, wherein the DCI indicates whether to multiplex: the encoded first HARQ-ACK part and the encoded second HARQ-ACK part on the PUSCH, or the HARQ-ACK payload on the PUSCH.

### Claim 29 (depends on 27)

The UE of claim 27, wherein the encoded first HARQ-ACK part and the encoded second HARQ-ACK part are multiplexed in accordance with a puncturing scheme or a rate matching scheme.

### Claim 30 (depends on 27)

The UE of claim 27, wherein the PUSCH overlaps a physical uplink control channel (PUCCH), associated with the HARQ-ACK payload, in a time domain.
