# US 2025/0096947 A1 · Two stage hybrid automatic repeat request acknowledgement (harq-ack) using mixed orthogonal multiple access (oma) and non-orthogonal multiple access (noma) > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0096947 A1 - Document ID: US20250096947A1 - Status: Published application - Kind: A1 - Application number: 18/467,623 - Filed: 2023-09-14 - Published: 2025-03-20 - Earliest claimed: 2023-09-14 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Hua WANG; Junyi LI; Tianyang BAI - Web page: https://patentgrep.com/patent/US20250096947A1 ## CPC - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1858: {Transmission or retransmission of more than one copy of acknowledgement message} - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1896: {ARQ related signaling} - H04L 5/0005: {Time-frequency} - H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling - H04W 76/20: Manipulation of established connections - 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 of wireless communication by a user equipment (UE) includes transmitting, to a network node, a first stage hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook on an orthogonal multiple access (OMA) resource. The method also includes transmitting, to the network node, a second stage HARQ-ACK codebook on a non-orthogonal multiple access (NOMA) resource in response to the first stage HARQ-ACK codebook indicating at least one negative acknowledgement (NACK). ## Claims ### Claim 1 A method of wireless communication by a user equipment (UE), comprising: transmitting, to a network node, a first stage hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook on an orthogonal multiple access (OMA) resource; and transmitting, to the network node, a second stage HARQ-ACK codebook on a non-orthogonal multiple access (NOMA) resource in response to the first stage HARQ-ACK codebook indicating at least one negative acknowledgement (NACK). ### Claim 2 (depends on 1) The method of claim 1, in which the first stage HARQ-ACK codebook comprises a single physical uplink control channel (PUCCH) bit. ### Claim 3 (depends on 1) The method of claim 1, further comprising receiving a configuration for a single resource for both the first stage HARQ-ACK codebook and the second stage HARQ-ACK codebook, the configuration indicating an OMA portion of the single resource allocated to the first stage HARQ-ACK codebook and a NOMA portion of the single resource allocated to the second stage HARQ-ACK codebook. ### Claim 4 (depends on 1) The method of claim 1, further comprising receiving a first configuration for the OMA resource for the first stage HARQ-ACK codebook and receiving a second configuration for the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 5 (depends on 4) The method of claim 4, further comprising receiving a link between the OMA resource and the NOMA resource via radio resource control (RRC) signaling. ### Claim 6 (depends on 1) The method of claim 1, further comprising receiving a radio resource control (RRC) configuration for the NOMA resource. ### Claim 7 (depends on 1) The method of claim 1, further comprising receiving a first configuration for the OMA resource for the first stage HARQ-ACK codebook and receiving downlink control information (DCI) requesting the second stage HARQ-ACK codebook, the DCI indicating the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 8 A method of wireless communication by a network device, comprising: receiving, from a user equipment (UE), a first stage hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook on an orthogonal multiple access (OMA) resource; and receiving, from the UE, a second stage HARQ-ACK codebook on a non-orthogonal multiple access (NOMA) resource in response to the first stage HARQ-ACK codebook indicating at least one negative acknowledgment (NACK). ### Claim 9 (depends on 8) The method of claim 8, in which the first stage HARQ-ACK codebook comprises a single physical uplink control channel (PUCCH) bit. ### Claim 10 (depends on 8) The method of claim 8, further comprising transmitting a configuration for a single resource for both the first stage HARQ-ACK codebook and the second stage HARQ-ACK codebook, the configuration indicating an OMA portion of the single resource allocated to the first stage HARQ-ACK codebook and a NOMA portion of the single resource allocated to the second stage HARQ-ACK codebook. ### Claim 11 (depends on 8) The method of claim 8, further comprising transmitting a first configuration for the OMA resource for the first stage HARQ-ACK codebook and transmitting a second configuration for the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 12 (depends on 11) The method of claim 11, further comprising configuring a link between the OMA resource and the NOMA resource via radio resource control (RRC) signaling. ### Claim 13 (depends on 8) The method of claim 8, further comprising transmitting a radio resource control (RRC) configuration for the NOMA resource. ### Claim 14 (depends on 8) The method of claim 8, further comprising transmitting a first configuration for the OMA resource for the first stage HARQ-ACK codebook and transmitting downlink control information (DCI) requesting the second stage HARQ-ACK codebook, the DCI indicating the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 15 An apparatus for wireless communication, comprising: at least one memory; and at least one processor coupled to the at least one memory, the at least one processor configured: to transmit, to a network node, a first stage hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook on an orthogonal multiple access (OMA) resource; and to transmit, to the network node, a second stage HARQ-ACK codebook on a non-orthogonal multiple access (NOMA) resource in response to the first stage HARQ-ACK codebook indicating at least one negative acknowledgement (NACK). ### Claim 16 (depends on 15) The apparatus of claim 15, in which the first stage HARQ-ACK codebook comprises a single physical uplink control channel (PUCCH) bit. ### Claim 17 (depends on 15) The apparatus of claim 15, in which the at least one processor is further configured to receive a configuration for a single resource for both the first stage HARQ-ACK codebook and the second stage HARQ-ACK codebook, the configuration indicating an OMA portion of the single resource allocated to the first stage HARQ-ACK codebook and a NOMA portion of the single resource allocated to the second stage HARQ-ACK codebook. ### Claim 18 (depends on 15) The apparatus of claim 15, in which the at least one processor is further configured to receive a first configuration for the OMA resource for the first stage HARQ-ACK codebook and receive a second configuration for the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 19 (depends on 18) The apparatus of claim 18, in which the at least one processor is further configured to receive a link between the OMA resource and the NOMA resource via radio resource control (RRC) signaling. ### Claim 20 (depends on 15) The apparatus of claim 15, in which the at least one processor is further configured to receive a radio resource control (RRC) configuration for the NOMA resource. ### Claim 21 (depends on 15) The apparatus of claim 15, in which the at least one processor is further configured to receive a first configuration for the OMA resource for the first stage HARQ-ACK codebook and receive downlink control information (DCI) requesting the second stage HARQ-ACK codebook, the DCI indicating the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 22 An apparatus for wireless communication, comprising: at least one memory; and at least one processor coupled to the at least one memory, the at least one processor configured: to receive, from a user equipment (UE), a first stage hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook on an orthogonal multiple access (OMA) resource; and to receive, from the UE, a second stage HARQ-ACK codebook on a non-orthogonal multiple access (NOMA) resource in response to the first stage HARQ-ACK codebook indicating at least one negative acknowledgment (NACK). ### Claim 23 (depends on 22) The apparatus of claim 22, in which the first stage HARQ-ACK codebook comprises a single physical uplink control channel (PUCCH) bit. ### Claim 24 (depends on 22) The apparatus of claim 22, in which the at least one processor is further configured to transmit a configuration for a single resource for both the first stage HARQ-ACK codebook and the second stage HARQ-ACK codebook, the configuration indicating an OMA portion of the single resource allocated to the first stage HARQ-ACK codebook and a NOMA portion of the single resource allocated to the second stage HARQ-ACK codebook. ### Claim 25 (depends on 22) The apparatus of claim 22, in which the at least one processor is further configured to transmit a first configuration for the OMA resource for the first stage HARQ-ACK codebook and transmit a second configuration for the NOMA resource for the second stage HARQ-ACK codebook. ### Claim 26 (depends on 25) The apparatus of claim 25, in which the at least one processor is further configured to configure a link between the OMA resource and the NOMA resource via radio resource control (RRC) signaling. ### Claim 27 (depends on 22) The apparatus of claim 22, in which the at least one processor is further configured to transmit a radio resource control (RRC) configuration for the NOMA resource. ### Claim 28 (depends on 22) The apparatus of claim 22, in which the at least one processor is further configured to transmit a first configuration for the OMA resource for the first stage HARQ-ACK codebook and transmit downlink control information (DCI) requesting the second stage HARQ-ACK codebook, the DCI indicating the NOMA resource for the second stage HARQ-ACK codebook.