# US 12,184,422 B2 · Power control for hybrid automatic repeat request

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- Number: US 12,184,422 B2
- Document ID: US12184422B2
- Status: Granted
- Kind: B2
- Application number: 18/157,907
- Filed: 2023-01-23
- Published: 2023-08-31
- Granted: 2024-12-31
- Earliest claimed: 2022-02-28
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Wei Yang; Konstantinos Dimou; Yi Huang
- Web page: https://patentgrep.com/patent/US12184422B2

## CPC

- H04L 1/1692: {Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts}
- H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L 1/1614: {using bitmaps}
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 1/1896: {ARQ related signaling}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04W 52/146: {Uplink power control}
- H04W 52/325: {Power control of control or pilot channels}
- H04W 52/48: during retransmission after error or non-acknowledgment
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/11: Semi-persistent scheduling
- 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 obtain one or more of a number of actual bits or a number of dummy bits associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission that includes one or more of a deferred semi-persistent scheduling (SPS) HARQ-ACK or a retransmitted HARQ-ACK codebook. The UE may transmit the HARQ-ACK using a power for a physical uplink control channel (PUCCH) that is based at least in part on the number of actual bits, the number of dummy bits, or a total number of bits that is a sum of the number of actual bits and the number of dummy bits. Numerous other aspects are described.

## Claims

### Claim 1

An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
obtain one or more of a number of actual bits or a number of dummy bits associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission that includes one or more of a deferred semi-persistent scheduling (SPS) HARQ-ACK or a retransmitted HARQ-ACK codebook; and
transmit the HARQ-ACK using a power for a physical uplink control channel (PUCCH) that is based at least in part on the number of actual bits, or a total number of bits that is a sum of the number of actual bits and the number of dummy bits.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the one or more processors are further configured to calculate the power based at least in part on the number of actual bits, or the total number of bits.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the HARQ-ACK transmission includes the deferred SPS HARQ-ACK.

### Claim 4 (depends on 3)

The apparatus of claim 3, wherein the one or more processors are further configured to calculate the power based at least in part on a total number of bits for the deferred SPS HARQ-ACK.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the HARQ-ACK transmission includes the retransmitted HARQ-ACK codebook.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the one or more processors are further configured to calculate the power based at least in part on an actual number of bits in an original HARQ-ACK codebook corresponding to the retransmitted HARQ-ACK codebook.

### Claim 7 (depends on 6)

The apparatus of claim 6, wherein the one or more processors, to calculate the power based at least in part on the actual number of bits in the original HARQ-ACK codebook, are configured to determine that the HARQ-ACK transmission includes only the retransmitted HARQ-ACK codebook.

### Claim 8 (depends on 6)

The apparatus of claim 6, wherein the one or more processors are further configured to:
determine, based at least in part on the original HARQ-ACK codebook being scheduled on a physical uplink shared channel (PUSCH), the actual number of bits for the original HARQ-ACK codebook based at least in part on an uplink downlink assignment index (DAI); or
determine, based at least in part on the original HARQ-ACK codebook being scheduled on the PUCCH, the actual number of bits in the original HARQ-ACK codebook based at least in part on a downlink DAI.

### Claim 9 (depends on 5)

The apparatus of claim 5, wherein the one or more processors are further configured to calculate the power based at least in part on a total number of bits in an original HARQ-ACK codebook corresponding to the retransmitted HARQ-ACK codebook.

### Claim 10 (depends on 9)

The apparatus of claim 9, wherein the one or more processors, to calculate the power based at least in part on the total number of bits in the original HARQ-ACK codebook, are configured to determine that the HARQ-ACK transmission includes the retransmitted HARQ-ACK codebook and other HARQ-ACK information.

### Claim 11 (depends on 9)

The apparatus of claim 9, wherein the one or more processors are further configured to:
determine, based at least in part on the original HARQ-ACK codebook being scheduled on a physical uplink shared channel (PUSCH), the actual number of bits for the original HARQ-ACK codebook based at least in part on an uplink downlink assignment index (DAI); or
determine, based at least in part on the original HARQ-ACK codebook being scheduled on the PUCCH, the actual number of bits in the original HARQ-ACK codebook based at least in part on a downlink DAI.

### Claim 12 (depends on 1)

The apparatus of claim 1, wherein the one or more processors are further configured to:
determine that the HARQ-ACK transmission comprises a plurality of HARQ-ACK transmission types;
determine the number of actual bits for each of the plurality of HARQ-ACK transmission types; and
calculate a combined power based at least in part on the number of actual bits for each of the plurality of HARQ-ACK transmission types.

### Claim 13 (depends on 12)

The apparatus of claim 12, wherein the one or more processors, to transmit the HARQ-ACK, are configured to transmit the HARQ-ACK using the combined power.

### Claim 14 (depends on 12)

The apparatus of claim 12, wherein the plurality of HARQ-ACK transmission types comprises two or more of the deferred SPS HARQ-ACK, the retransmitted HARQ-ACK codebook, or a standard HARQ-ACK.

### Claim 15 (depends on 1)

The apparatus of claim 1, wherein the one or more processors are further configured to:
determine that the HARQ-ACK transmission comprises a plurality of HARQ-ACK transmission types; and
calculate a combined power for the plurality of HARQ-ACK transmission types based at least in part on a total number of bits included in the plurality of HARQ-ACK transmission types.

### Claim 16 (depends on 15)

The apparatus of claim 15, wherein the one or more processors, to transmit the HARQ-ACK, are configured to transmit the HARQ-ACK using the combined power.

### Claim 17 (depends on 15)

The apparatus of claim 15, wherein the plurality of HARQ-ACK transmission types comprises two or more of the deferred SPS HARQ-ACK, the retransmitted HARQ-ACK codebook, or a standard HARQ-ACK.

### Claim 18 (depends on 1)

The apparatus of claim 1, wherein the HARQ-ACK transmission comprises a high priority HARQ-ACK and a low priority HARQ-ACK.

### Claim 19 (depends on 18)

The apparatus of claim 18, wherein the one or more processors are further configured to calculate the power based at least in part on the number of actual bits or the number of dummy bits included in the high priority HARQ-ACK.

### Claim 20 (depends on 18)

The apparatus of claim 18, wherein the high priority HARQ-ACK corresponds to the deferred SPS HARQ-ACK or the retransmitted HARQ-ACK codebook.

### Claim 21 (depends on 1)

The apparatus of claim 1, wherein the HARQ-ACK transmission comprises a concatenation of the deferred SPS HARQ-ACK and the retransmitted HARQ-ACK codebook.

### Claim 22 (depends on 21)

The apparatus of claim 21, wherein the concatenation comprises the retransmitted HARQ-ACK codebook followed by the deferred SPS HARQ-ACK.

### Claim 23 (depends on 21)

The apparatus of claim 21, wherein the concatenation of the deferred SPS HARQ-ACK and the retransmitted HARQ-ACK codebook is preceded by a standard HARQ-ACK.

### Claim 24 (depends on 1)

The apparatus of claim 1, wherein the one or more processors are further configured to calculate the power based at least in part on the total number of bits that is less than or equal to eleven.

### Claim 25 (depends on 1)

The apparatus of claim 1, wherein the PUCCH comprises the deferred SPS HARQ-ACK or the retransmitted HARQ-ACK codebook, and at least one uplink signal.

### Claim 26 (depends on 25)

The apparatus of claim 25, wherein the at least one uplink signal comprises channel state information or a scheduling request.

### Claim 27

A method of wireless communication performed by a user equipment (UE), comprising:
obtaining one or more of a number of actual bits or a number of dummy bits associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission that includes one or more of a deferred semi-persistent scheduling (SPS) HARQ-ACK or a retransmitted HARQ-ACK codebook; and
transmitting the HARQ-ACK using a power for a physical uplink control channel (PUCCH) that is based at least in part on the number of actual bits, or a total number of bits that is a sum of the number of actual bits and the number of dummy bits.

### Claim 28

An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive an indication for the UE to retransmit a hybrid automatic repeat request acknowledgement (HARQ-ACK), wherein the HARQ-ACK corresponds to a HARQ-ACK transmission type of a set of HARQ-ACK transmission types, the set of HARQ-ACK transmission types comprising two or more of: a deferred SPS HARQ-ACK, a retransmitted HARQ-ACK codebook, or a standard HARQ-ACK; and
transmit a HARQ-ACK transmission including a concatenation of at least two HARQ-ACK transmission types of the set of HARQ-ACK transmission types.

### Claim 29 (depends on 28)

The apparatus of claim 28, wherein the concatenation comprises the retransmitted HARQ-ACK codebook followed by the deferred SPS HARQ-ACK.

### Claim 30 (depends on 28)

The apparatus of claim 28, wherein the concatenation of the deferred SPS HARQ-ACK and the retransmitted HARQ-ACK codebook is preceded by the standard HARQ-ACK.

### Claim 31 (depends on 28)

The apparatus of claim 28, wherein the indication corresponds to one or more of: downlink control information (DCI), or radio resource control (RRC) signaling.

### Claim 32 (depends on 28)

The apparatus of claim 28, wherein the HARQ-ACK transmission comprises a physical uplink control channel (PUCCH) transmission.

### Claim 33

A method of wireless communication performed by a user equipment (UE), comprising:
receiving an indication for the UE to retransmit a hybrid automatic repeat request acknowledgement (HARQ-ACK), wherein the HARQ-ACK corresponds to a HARQ-ACK transmission type of a set of HARQ-ACK transmission types, the set of HARQ-ACK transmission types comprising two or more of: a deferred SPS HARQ-ACK, a retransmitted HARQ-ACK codebook, or a standard HARQ-ACK; and
transmitting a HARQ-ACK transmission including a concatenation of at least two HARQ-ACK transmission types of the set of HARQ-ACK transmission types.

### Claim 34 (depends on 33)

The method of claim 33, wherein the concatenation comprises the retransmitted HARQ-ACK codebook followed by the deferred SPS HARQ-ACK.

### Claim 35 (depends on 33)

The method of claim 33, wherein the concatenation of the deferred SPS HARQ-ACK and the retransmitted HARQ-ACK codebook is preceded by the standard HARQ-ACK.
