# US 12,009,927 B2 · Method and apparatus for transmitting and receiving a feedback signal in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,927 B2 - Document ID: US12009927B2 - Status: Granted - Kind: B2 - Application number: 18/045,094 - Filed: 2022-10-07 - Published: 2023-04-13 - Granted: 2024-06-11 - Earliest claimed: 2019-08-13 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Miao Zhou; Min Wu; Yi Wang; Feifei Sun - Web page: https://patentgrep.com/patent/US12009927B2 ## CPC - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04W 76/14: Direct-mode setup - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/18: Management of setup rejection or failure - H04W 76/27: Transitions between radio resource control [RRC] states - H04L 5/0078: {Timing of 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 A method performed by a terminal in a wireless communication system is provided, the method includes receiving, from a base station, a sidelink configured grant for a sidelink transmission, transmitting, to another terminal, a sidelink signal based on the sidelink configured grant, generating a second hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) information based on whether first HARQ-ACK information corresponding to the sidelink signal is received from the another terminal, and reporting on an uplink channel, to a base station, the second HARQ-ACK information. ## Claims ### Claim 1 A method performed by a first terminal in a wireless communication system, the method comprising: receiving, from a base station, a physical downlink shared channel (PDSCH); transmitting, to a second terminal, a physical sidelink shared channel (PSSCH); receiving, from the second terminal, a first hybrid automatic repeat request (HARQ)-ACK information associated with the PSSCH; identifying priority between the first HARQ-ACK information associated with the PSSCH and a second HARQ-ACK information associated with the PDSCH; and transmitting, to the base station, the first HARQ-ACK information or the second HARQ-ACK information based on the identified priority. ### Claim 2 (depends on 1) The method of claim 1, wherein the priority between the first HARQ-ACK information and the second HARQ-ACK information is identified based on whether the PDSCH is associated with ultra-reliable and low latency communications (URLLC). ### Claim 3 (depends on 2) The method of claim 2, wherein transmitting, to the base station, the first HARQ-ACK information or the second HARQ-ACK information based on the identified priority comprises: transmitting, to the base station, the first HARQ-ACK information, if the PDSCH is not associated with the URLLC and a value associated with the priority of the first HARQ-ACK information is smaller than a threshold. ### Claim 4 (depends on 2) The method of claim 2, wherein transmitting, to the base station, the first HARQ-ACK information or the second HARQ-ACK information based on the identified priority comprises: transmitting, to the base station, the second HARQ-ACK information, if the PDSCH is not associated with the URLLC and a value associated with the priority of the first HARQ-ACK information is equal to or larger than a threshold. ### Claim 5 (depends on 1) The method of claim 1, further comprising: in case that the first terminal does not transmit sidelink data to the second terminal on resources indicated by a configured grant, generating an ACK for reporting to the base station. ### Claim 6 (depends on 1) The method of claim 1, further comprising: determining a number of physical sidelink feedback channel (PSFCH) transmissions; and determining a transmission power for a PSFCH transmission among the PSFCH transmissions. ### Claim 7 (depends on 6) The method of claim 6, further comprising: in case that a total transmission power of scheduled PSFCH transmissions exceeds a maximum transmission power of PSFCH transmissions, reducing each transmission power of the scheduled PSFCH transmissions until the total transmission power of the scheduled PSFCH transmissions does not exceed the maximum transmission power of the PSFCH transmissions. ### Claim 8 (depends on 6) The method of claim 6, determining the number of PSFCH transmissions as N based on a priority of simultaneous PSFCH transmissions, wherein the N is equal to a maximum number of the PSFCH transmissions. ### Claim 9 A first terminal in a wireless communication system, the first terminal comprising: a transceiver; and at least one processor configured to: receive via the transceiver, from a base station, a physical downlink shared channel (PDSCH), transmit via the transceiver, to a second terminal, a physical sidelink shared channel (PSSCH), receive via the transceiver, from the second terminal, a first hybrid automatic repeat request (HARQ)-ACK information associated with the PSSCH, identify priority between the first HARQ-ACK information associated with the PSSCH and a second HARQ-ACK information associated with the PDSCH, and transmit via the transceiver, to the base station, the first HARQ-ACK information or the second HARQ-ACK information based on the identified priority. ### Claim 10 (depends on 9) The first terminal of claim 9, wherein the priority between the first HARQ-ACK information and the second HARQ-ACK information is identified based on whether the PDSCH is associated with ultra-reliable and low latency communications (URLLC). ### Claim 11 (depends on 10) The first terminal of claim 10, wherein the at least one processor is further configured to: transmit via the transceiver, to the base station, the first HARQ-ACK information, if the PDSCH is not associated with the URLLC and a value associated with the priority of the first HARQ-ACK information is smaller than a threshold. ### Claim 12 (depends on 10) The first terminal of claim 10, wherein the at least one processor is further configured to: transmit via the transceiver, to the base station, the second HARQ-ACK information, if the PDSCH is not associated with the URLLC and a value associated with the priority of the first HARQ-ACK information is equal to or larger than a threshold. ### Claim 13 (depends on 9) The first terminal of claim 9, wherein the at least one processor is further configured to: in case that the first terminal does not transmit sidelink data to the second terminal on resources indicated by a configured grant, generate an ACK for reporting to the base station. ### Claim 14 (depends on 9) The first terminal of claim 9, wherein the at least one processor is further configured to: determine a number of physical sidelink feedback channel (PSFCH) transmissions; and determine a transmission power for a PSFCH transmission among the PSFCH transmissions. ### Claim 15 (depends on 14) The first terminal of claim 14, wherein the at least one processor is further configured to: in case that a total transmission power of scheduled PSFCH transmissions exceeds a maximum transmission power of PSFCH transmissions, reduce each transmission power of the scheduled PSFCH transmissions until the total transmission power of the scheduled PSFCH transmissions does not exceed the maximum transmission power of the PSFCH transmissions. ### Claim 16 (depends on 14) The first terminal of claim 14, wherein the at least one processor is further configured to: determine the number of PSFCH transmissions as N based on a priority of simultaneous PSFCH transmissions, wherein the N is equal to a maximum number of the PSFCH transmissions.