# US 2020/0288286 A1 · Method and apparatus for transmitting psfch in nr v2x > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288286 A1 - Document ID: US20200288286A1 - Status: Published application - Kind: A1 - Application number: 16/824,557 - Filed: 2020-03-19 - Published: 2020-09-10 - Earliest claimed: 2019-03-05 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Daesung HWANG; Hanbyul SEO; Seungmin LEE - Web page: https://patentgrep.com/patent/US20200288286A1 ## CPC - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04L 1/1614: {using bitmaps} - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L 5/0092: {Indication of how the channel is divided} - H04L 27/2607: {Cyclic extensions} - H04W 72/02: Selection of wireless resources by user or terminal - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 27/2602: {Signal structure} - H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)} - H04W 4/02: Services making use of location information - H04W 4/027: {using movement velocity, acceleration information} - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] - H04W 4/46: for vehicle-to-vehicle communication [V2V] - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 76/14: Direct-mode setup - H04W 92/18: between terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method in which a first apparatus performs wireless communication and an apparatus supporting the same are provided. The method may include: receiving information related to a physical sidelink feedback channel (PSFCH) resource from a base station; receiving a physical sidelink shared channel (PSSCH) from a second apparatus; and transmitting a PSFCH related to the PSSCH to the second apparatus. Here, the information related to the PSFCH resource may include, for example, information related to a resource block (RB) available for the first apparatus to transmit the PSFCH. ## Claims ### Claim 1 A method in which a first apparatus performs wireless communication, the method comprising: receiving, from a base station, first information related to a set of resource blocks (RBs) available for the first apparatus to transmit a physical sidelink feedback channel (PSFCH); receiving, from the base station, second information related to cyclic shift used by the first apparatus to transmit the PSFCH; receiving, from a second apparatus, a physical sidelink shared channel (PSSCH); determining a PSFCH resource related the PSSCH, based on the first information related to the set of RBs and the second information related to cyclic shift; and transmitting, to the second apparatus, Hybrid Automatic Repeat Request (HARQ) information based on the PSFCH resource. ### Claim 2 (depends on 1) The method of claim 1, wherein the HARQ information is transmitted by using the PSFCH resource to the second apparatus. ### Claim 3 (depends on 1) The method of claim 1, further comprising: applying the cyclic shift to the HARQ information. ### Claim 4 (depends on 3) The method of claim 3, wherein the second information related to cyclic shift includes a number of cyclic shift pairs. ### Claim 5 (depends on 4) The method of claim 4, wherein the cyclic shift is one of a cyclic shift pair. ### Claim 6 (depends on 1) The method of claim 1, wherein the set of RBs available to transmit the PSFCH is configured for the first apparatus in a resource pool. ### Claim 7 (depends on 1) The method of claim 1, wherein the first information related to the set of RBs available to transmit the PSFCH is a bitmap. ### Claim 8 (depends on 7) The method of claim 7, wherein each bit of the bitmap indicates each RB in a resource pool. ### Claim 9 (depends on 8) The method of claim 8, wherein an RB related to 1 of the bitmap is an RB available to transmit the PSFCH, and an RB related to 0 of the bitmap is an RB unavailable to transmit the PSFCH. ### Claim 10 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, third information related to a slot available for the first apparatus to transmit the PSFCH. ### Claim 11 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, fourth information related to a PSFCH format available for the first apparatus to transmit the PSFCH. ### Claim 12 (depends on 1) The method of claim 1, wherein the PSSCH includes a plurality of PSSCHs. ### Claim 13 (depends on 12) The method of claim 12, wherein a resource used by the first apparatus to transmit the PSFCH is a PSFCH resource related to a last received PSSCH among the plurality of PSSCHs received by the first apparatus. ### Claim 14 A first apparatus for performing wireless communication, the first apparatus comprising: one or more memories storing instructions; one or more transceivers; and one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to: receive, from a base station, first information related to a set of resource blocks (RBs) available for the first apparatus to transmit a physical sidelink feedback channel (PSFCH); receive, from the base station, second information related to cyclic shift used by the first apparatus to transmit the PSFCH; receive, from a second apparatus, a physical sidelink shared channel (PSSCH); determine a PSFCH resource related the PSSCH, based on the first information related to the set of RBs and the second information related to cyclic shift; and transmit, to the second apparatus, Hybrid Automatic Repeat Request (HARQ) information based on the PSFCH resource. ### Claim 15 An apparatus configured to control a first user equipment (UE), the apparatus comprising: one or more processors; and one or more memories operatively connected to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to: receive, from a base station, first information related to a set of resource blocks (RBs) available for the first apparatus to transmit a physical sidelink feedback channel (PSFCH); receive, from the base station, second information related to cyclic shift used by the first apparatus to transmit the PSFCH; receive, from a second apparatus, a physical sidelink shared channel (PSSCH); determine a PSFCH resource related the PSSCH, based on the first information related to the set of RBs and the second information related to cyclic shift; and transmit, to the second apparatus, Hybrid Automatic Repeat Request (HARQ) information based on the PSFCH resource.