# US 2022/0286237 A1 · Method for transmitting and receiving harq information in wireless communication system, and device therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0286237 A1 - Document ID: US20220286237A1 - Status: Published application - Kind: A1 - Application number: 17/748,368 - Filed: 2022-05-19 - Published: 2022-09-08 - Earliest claimed: 2018-08-10 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Kyuseok KIM; Suckchel YANG; Jiwon KANG; Hyungtae KIM - Web page: https://patentgrep.com/patent/US20220286237A1 ## CPC - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems - 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)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1614: {using bitmaps} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 2001/0097: {Relays} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - 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 for a terminal to transmit hybrid automatic repeat and request (HARQ) feedback information in a wireless communication system supporting coordinated multiple point (CoMP) transmission includes: receiving a first PDCCH and a second PDCCH from a first transmission node and a second transmission node, respectively; receiving, from the first transmission node and the second transmission node, a first PDSCH and a second PDSCH scheduled by the first PDCCH and the second PDCCH, respectively; determining HARQ-ACK codebook for the first PDSCH and the second PDSCH; and transmitting HARQ feedback information for the determined HARQ-ACK codebook. The first and second PDCCHs include specific HARQ feedback timing information used for the CoMP. When a reception occasion for the first PDSCH and a reception occasion for the second PDSCH overlap, the HARQ feedback information is transmitted on a slot corresponding to the value indicated by the specific HARQ feedback timing information. ## Claims ### Claim 1 A method of reporting, by a user equipment (UE), hybrid automatic repeat and request-acknowledgment (HARQ-ACK) information in a wireless communication system, the method comprising: receiving a first physical downlink control channel (PDCCH) related to a first control resource set (CORESET) group; receiving a second PDCCH related to a second CORESET group; receiving a first physical downlink shared channel (PDSCH) based on the first PDCCH; receiving a second PDSCH based on the second PDCCH; generating (i) a first HARQ-ACK codebook for the first PDSCH and (ii) a second HARQ-ACK codebook for the second PDSCH separately; concatenating the first HARQ-ACK codebook followed by the second HARQ-ACK codebook; and reporting the HARQ-ACK information based on the concatenated HARQ-ACK codebook. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving type information for a HARQ-ACK codebook set to ‘semi-static’, wherein the first CORESET group has a different index than the second CORESET group. ### Claim 3 (depends on 1) The method of claim 1, wherein a total bit number of the HARQ-ACK information is determined based on concatenation of the first HARQ-ACK codebook and the second HARQ-ACK codebook. ### Claim 4 (depends on 1) The method of claim 1, wherein the first HARQ-ACK codebook is related to a first CORESET included in the first CORESET group, and wherein the second HARQ-ACK codebook is related to a second CORESET included in the second CORESET group. ### Claim 5 (depends on 4) The method of claim 4, wherein based on an index of the first CORESET group having a smaller value than an index of the second CORESET group, the first HARQ-ACK codebook is concatenated followed by the second HARQ-ACK codebook. ### Claim 6 (depends on 1) The method of claim 1, wherein the HARQ-ACK information is transmitted via a physical uplink control channel (PUCCH). ### Claim 7 (depends on 6) The method of claim 6, wherein each of the first PDCCH and the second PDCCH includes a field for indicating a time duration between a timing of a PDSCH reception and a timing of the PUCCH transmission. ### Claim 8 (depends on 1) The method of claim 1, further comprising: receiving configuration information related to the first CORESET and the second CORESET. ### Claim 9 (depends on 1) The method of claim 1, wherein the first PDCCH and the first PDSCH are received through a first transmission and reception point, and the second PDCCH and the second PDSCH are received through a second transmission and reception point. ### Claim 10 (depends on 9) The method of claim 9, wherein the first CORESET group corresponds to the first transmission and reception point, and the second CORESET group corresponds to the second transmission and reception point. ### Claim 11 A processing apparatus configured to control a user equipment (UE) to report hybrid automatic repeat and request-acknowledgment (HARQ-ACK) information in a wireless communication system, the processing apparatus comprising: at least one processor; and at least one memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: receiving a first physical downlink control channel (PDCCH) related to a first CORESET group; receiving a second PDCCH related to a second CORESET group; receiving a first physical downlink shared channel (PDSCH) based on the first PDCCH; receiving a second PDSCH based on the second PDCCH; generating (i) a first HARQ-ACK codebook for the first PDSCH and (ii) a second HARQ-ACK codebook for the second PDSCH separately; concatenating the first HARQ-ACK codebook followed by the second HARQ-ACK codebook; and reporting the HARQ-ACK information based on the concatenated HARQ-ACK codebook. ### Claim 12 (depends on 11) The processing apparatus of claim 11, wherein the operations further comprise: receiving type information for a HARQ-ACK codebook set to ‘semi-static’, wherein the first CORESET group has a different index than the second CORESET group. ### Claim 13 (depends on 11) The processing apparatus of claim 11, wherein a total bit number of the HARQ-ACK information is determined based on concatenation of the first HARQ-ACK codebook and the second HARQ-ACK codebook. ### Claim 14 (depends on 11) The processing apparatus of claim 11, wherein the first HARQ-ACK codebook is related to a first CORESET included in the first CORESET group, and wherein the second HARQ-ACK codebook is related to a second CORESET included in the second CORESET group. ### Claim 15 (depends on 14) The processing apparatus of claim 14, wherein based on an index of the first CORESET group having a smaller value than an index of the second CORESET group, the first HARQ-ACK codebook is concatenated followed by the second HARQ-ACK codebook. ### Claim 16 (depends on 11) The processing apparatus of claim 11, wherein the HARQ-ACK information is transmitted via a physical uplink control channel (PUCCH). ### Claim 17 A computer-readable storage medium storing at least one instruction that, based on being executed by at least one processor, allows the at least one processor to: control to receive a first physical downlink control channel (PDCCH) related to a first CORESET group; control to receive a second PDCCH related to a second CORESET group; control to receive a first physical downlink shared channel (PDSCH) based on the first PDCCH; control to receive a second PDSCH based on the second PDCCH; generate (i) a first hybrid automatic repeat and request-acknowledgment (HARQ-ACK) codebook for the first PDSCH and (ii) a second HARQ-ACK codebook for the second PDSCH separately; concatenate the first HARQ-ACK codebook followed by the second HARQ-ACK codebook; and control to reporting HARQ-ACK information based on the concatenated HARQ-ACK codebook. ### Claim 18 (depends on 17) The computer-readable storage medium of claim 17, wherein the at least one instruction further allows the at least one processor to control to: receiving type information for a HARQ-ACK codebook set to ‘semi-static’, wherein the first CORESET group has a different index than the second CORESET group. ### Claim 19 (depends on 17) The computer-readable storage medium of claim 17, wherein a total bit number of the HARQ-ACK information is determined based on concatenation of the first HARQ-ACK codebook and the second HARQ-ACK codebook.