# US 12,009,930 B2 · Physical uplink control channel resource indication for sidelink hybrid automatic repeat request feedback > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,930 B2 - Document ID: US12009930B2 - Status: Granted - Kind: B2 - Application number: 17/303,006 - Filed: 2021-05-18 - Published: 2021-12-30 - Granted: 2024-06-11 - Earliest claimed: 2020-06-26 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Hua Wang; Sony Akkarakaran; Tao Luo; Junyi Li - Web page: https://patentgrep.com/patent/US12009930B2 ## CPC - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 1/1896: {ARQ related signaling} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 2001/0092: {Error control systems characterised by the topology of the transmission link} - H04W 92/18: between terminal devices - 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 first user equipment (UE) may receive an indication of a physical uplink control channel (PUCCH) resource for providing hybrid automatic repeat request (HARQ) feedback for a sidelink data transmission from a second UE. The first UE may transmit the HARQ feedback for the sidelink data transmission on the PUCCH resource. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a receiver (Rx) user equipment (UE), comprising: receiving a sidelink control information (SCI) communication that includes an indication of a physical uplink control channel (PUCCH) resource for providing hybrid automatic repeat request (HARQ) feedback for a sidelink data transmission from a transmitter (Tx) UE, wherein the SCI communication is received from the Tx UE based at least in part on a downlink control information (DCI) format 3_0 communication, received by the Tx UE, including the indication of the PUCCH resource; receiving the sidelink data transmission from the Tx UE; and transmitting, on the PUCCH resource, the HARQ feedback for the sidelink data transmission. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting a copy of the HARQ feedback on a physical sidelink feedback channel (PSFCH) to the Tx UE. ### Claim 3 (depends on 1) The method of claim 1, further comprising: refraining from transmitting a copy of the HARQ feedback on a physical sidelink feedback channel (PSFCH) to the Tx UE. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, from a network entity, a DCI communication that includes a sidelink receive grant for the Rx UE, wherein the sidelink receive grant includes the indication of the PUCCH resource and an indication that the Tx UE is to transmit the sidelink data transmission to the Rx UE. ### Claim 5 (depends on 4) The method of claim 4, wherein the DCI communication is in DCI format 3_0. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving, from a network entity, a downlink communication that includes the indication of the PUCCH resource, wherein the downlink communication is a radio resource control (RRC) communication or a medium access control control element (MAC-CE) communication. ### Claim 7 (depends on 1) The method of claim 1, wherein receiving the SCI communication comprises: receiving, from the Tx UE, the SCI communication. ### Claim 8 (depends on 1) The method of claim 1, wherein transmitting, on the PUCCH resource, the HARQ feedback comprises: transmitting, on the PUCCH resource and to a network entity associated with the Rx UE and the Tx UE, the HARQ feedback. ### Claim 9 (depends on 1) The method of claim 1, wherein transmitting, on the PUCCH resource, the HARQ feedback comprises: transmitting, on the PUCCH resource and to a first network entity associated with the Rx UE, the HARQ feedback, wherein the HARQ feedback is for a second network entity associated with the Tx UE, and wherein the first network entity and the second network entity are different base stations. ### Claim 10 A method of wireless communication performed by a network entity, comprising: transmitting, to a transmitter (Tx) user equipment (UE), a downlink control information (DCI) format 3_0 communication that includes an indication of a physical uplink control channel (PUCCH) resource for a receiver (Rx) UE to provide hybrid automatic repeat request (HARQ) feedback for a sidelink data transmission, wherein the sidelink data transmission is from the Tx UE and to the Rx UE; and receiving, from the Rx UE and on the PUCCH resource based at least in part on a sidelink control information (SCI) communication being associated with the DCI format 3_0 communication, the HARQ feedback for the sidelink data transmission, wherein the SCI communication includes the indication of the PUCCH resource. ### Claim 11 (depends on 10) The method of claim 10, further comprising: transmitting, to the Rx UE, a DCI communication that includes a sidelink receive grant for the Rx UE, wherein the sidelink receive grant includes the indication of the PUCCH resource and an indication that the Tx UE is to transmit the sidelink data transmission to the Rx UE. ### Claim 12 (depends on 11) The method of claim 11, wherein the DCI communication is in DCI format 3_0. ### Claim 13 (depends on 10) The method of claim 10, further comprising: transmitting the indication of the PUCCH resource in a radio resource control (RRC) communication or a medium access control control element (MAC-CE) communication. ### Claim 14 (depends on 10) The method of claim 10, wherein the DCI format 3_0 communication includes a sidelink transmit grant, associated with the sidelink data transmission, for the Tx UE, wherein the sidelink transmit grant includes the indication of the PUCCH resource. ### Claim 15 A receiver (Rx) user equipment (UE), comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: receive a sidelink control information (SCI) communication that includes an indication of a physical uplink control channel (PUCCH) resource for providing hybrid automatic repeat request (HARQ) feedback for a sidelink data transmission from a transmitter (Tx) UE, wherein the reception of the SCI communication from the Tx UE is based at least in part on a downlink control information (DCI) format 3_0 communication, received by the Tx UE, including the indication of the PUCCH resource; receive the sidelink data transmission from the Tx UE; and transmit, on the PUCCH resource, the HARQ feedback for the sidelink data transmission. ### Claim 16 (depends on 15) The UE of claim 15, wherein the one or more processors are further configured to: transmit a copy of the HARQ feedback on a physical sidelink feedback channel (PSFCH) to the Tx UE. ### Claim 17 (depends on 15) The UE of claim 15, wherein the one or more processors are further configured to: refrain from transmitting a copy of the HARQ feedback on a physical sidelink feedback channel (PSFCH) to the Tx UE. ### Claim 18 (depends on 15) The UE of claim 15, wherein the one or more processors are further configured to: receive, from a network entity, a DCI communication that includes a sidelink receive grant for the Rx UE, wherein the sidelink receive grant includes the indication of the PUCCH resource and an indication that the Tx UE is to transmit the sidelink data transmission to the Rx UE. ### Claim 19 (depends on 18) The UE of claim 18, wherein the DCI communication is in DCI format 3_0. ### Claim 20 (depends on 15) The UE of claim 15, wherein the one or more processors are further configured to: receive, from a network entity, a downlink communication that includes the indication of the PUCCH resource, wherein the downlink communication is a radio resource control (RRC) communication or a medium access control control element (MAC-CE) communication. ### Claim 21 (depends on 15) The UE of claim 15, wherein the one or more processors, to receive the SCI communication, are configured to: receive, from the Tx UE, the SCI communication. ### Claim 22 (depends on 15) The UE of claim 15, wherein the one or more processors, to transmit, on the PUCCH resource, the HARQ feedback, are configured to: transmit, on the PUCCH resource and to a network entity associated with the Rx UE and the Tx UE, the HARQ feedback. ### Claim 23 (depends on 15) The UE of claim 15, wherein the one or more processors, to transmit, on the PUCCH resource, the HARQ feedback are configured to: transmit, on the PUCCH resource and to a first network entity associated with the Rx UE, the HARQ feedback, wherein the HARQ feedback is for a second network entity associated with the Tx UE, and wherein the first network entity and the second network entity are different base stations. ### Claim 24 A network entity, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: transmit, to a transmitter (Tx) user equipment (UE), a downlink control information (DCI) format 3_0 communication that includes an indication of a physical uplink control channel (PUCCH) resource for a receiver (Rx) UE to provide hybrid automatic repeat request (HARQ) feedback for a sidelink data transmission, wherein the sidelink data transmission is from the Tx UE and to the Rx UE; and receive, from the Rx UE and on the PUCCH resource based at least in part on a sidelink control information (SCI) communication being associated with the DCI format 3_0 communication, the HARQ feedback for the sidelink data transmission, wherein the SCI communication includes the indication of the PUCCH resource. ### Claim 25 (depends on 24) The network entity of claim 24, wherein the one or more processors are further configured to: transmit, to the Rx UE, a DCI communication that includes a sidelink receive grant for the Rx UE. ### Claim 26 (depends on 25) The network entity of claim 25, wherein the sidelink receive grant includes the indication of the PUCCH resource and an indication that the Tx UE is to transmit the sidelink data transmission to the Rx UE. ### Claim 27 (depends on 25) The network entity of claim 25, wherein the DCI communication is in DCI format 3_0. ### Claim 28 (depends on 24) The network entity of claim 24, wherein the one or more processors are further configured to: transmit the indication of the PUCCH resource in a radio resource control (RRC) communication or a medium access control control element (MAC-CE) communication. ### Claim 29 (depends on 24) The network entity of claim 24, wherein the DCI format 3_0 communication includes a sidelink transmit grant, associated with the sidelink data transmission, for the Tx UE. ### Claim 30 (depends on 29) The network entity of claim 29, wherein the sidelink transmit grant includes the indication of the PUCCH resource.